From fff05410ee7f96a1c4057647290e5257fab72fcc Mon Sep 17 00:00:00 2001 From: Markus Ecker Date: Wed, 14 Oct 2026 14:27:55 +0200 Subject: [PATCH 1/3] Python: Support ag-ui-protocol 1.0 in agent-framework-ag-ui Allow ag-ui-protocol 1.x (>=0.1.19,<2) and lock 1.0.0. With 1.0 installed the package now passes its whole test suite; 0.1.x keeps its behaviour. - Declare protocolVersion on every RUN_STARTED through one helper, _build_run_started_event, gated on the installed SDK exposing PROTOCOL_VERSION, so 0.1.x keeps emitting the event it does today. - Send media in MESSAGES_SNAPSHOT in the 1.0 shape when 1.0 is installed: 1.0 rejects the legacy binary part, so snapshots with media, including threads saved before an upgrade, failed validation on replay. Stored snapshot messages keep their current shape. - Pass media in a ContentPart[] tool result on as the function result's Content items instead of the text of the raw parts list: for tool messages, for tool media replayed from a stored snapshot, and for TOOL_CALL_RESULT events in AGUIChatClient. With 1.0, AGUIChatClient also sends such media back as content parts in later requests (MCP results keep their own handling). History deduplication and approval snapshot rebuilds treat an image-only result as output and keep its media. - Workflow snapshots: store 1.0 tool-result parts as wire dictionaries, and default a text message without a role to assistant (1.0 no longer defaults it), so the snapshot serializes and replays. - Treat a 1.0 file source like an id reference: its handle is in "value", which was not read, so the part was dropped silently. It now gets the existing unresolved-reference rejection. - Read 1.0's modelled JSON Patch operations in the task-steps example and in the predictive-state tests, and compare replayed snapshots with the wire shape for the installed SDK. --- python/packages/ag-ui/AGENTS.md | 8 +- python/packages/ag-ui/README.md | 3 +- .../ag-ui/agent_framework_ag_ui/_agent_run.py | 44 ++- .../_event_converters.py | 7 + .../_message_adapters.py | 140 +++++++- .../_predictive_state.py | 12 +- .../agent_framework_ag_ui/_run_common.py | 14 + .../_snapshot_session.py | 11 +- .../ag-ui/agent_framework_ag_ui/_utils.py | 8 + .../ag-ui/agent_framework_ag_ui/_workflow.py | 23 +- .../agent_framework_ag_ui/_workflow_run.py | 20 +- .../agents/task_steps_agent.py | 10 +- python/packages/ag-ui/pyproject.toml | 2 +- .../tests/ag_ui/test_predictive_state.py | 33 +- .../ag-ui/tests/ag_ui/test_protocol_1_0.py | 322 ++++++++++++++++++ .../ag-ui/tests/ag_ui/test_run_common.py | 2 + .../ag_ui/test_task_steps_example_agent.py | 98 ++++++ .../ag-ui/tests/ag_ui/test_workflow_agent.py | 8 +- python/uv.lock | 8 +- 19 files changed, 695 insertions(+), 78 deletions(-) create mode 100644 python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py create mode 100644 python/packages/ag-ui/tests/ag_ui/test_task_steps_example_agent.py diff --git a/python/packages/ag-ui/AGENTS.md b/python/packages/ag-ui/AGENTS.md index 4470067c1ba..8919777d006 100644 --- a/python/packages/ag-ui/AGENTS.md +++ b/python/packages/ag-ui/AGENTS.md @@ -32,7 +32,13 @@ AG-UI protocol integration for building agent UIs with the AG-UI standard. without emitting empty text deltas. Provider `raw_representation` is omitted; `AGUIChatClient` restores the annotations on text content. These live custom events are not replayed by `MESSAGES_SNAPSHOT`. - Inbound custom event aliases are accepted: `CUSTOM`, `CUSTOM_EVENT`, and `custom_event`. -- Multimodal user inputs support both legacy (`text`, `binary`) and draft-style (`image`, `audio`, `video`, `document`) shapes. +- Multimodal user inputs support both legacy (`text`, `binary`) and AG-UI 1.0 (`image`, `audio`, `video`, `document`) shapes. +- `ag-ui-protocol` 0.1.x and 1.x are both supported. Build every `RUN_STARTED` with `_build_run_started_event` so it + declares `protocolVersion` when the installed SDK has one. Snapshot messages keep media as `binary` parts; pass them + through `snapshot_messages_for_wire` when building a `MESSAGES_SNAPSHOT`, which rewrites them to the 1.0 shape when + 1.0 is installed (1.0 rejects `binary`). +- A 1.0 `ContentPart[]` tool result becomes the function result's Content items, so media reaches chat clients with + rich function output; text-only results stay text. - Interrupted runs complete with `RUN_FINISHED.outcome.type == "interrupt"` and canonical `outcome.interrupts`; do not document or add new flows that depend on the legacy top-level `RUN_FINISHED.interrupt` field. - `Interrupt` and `ResumeEntry` come from the `ag-ui-protocol` package (`ag_ui.core`), not from an Agent Framework-specific interrupt model. - Tool approval interrupts, including approvals surfaced through workflow `request_info`, advertise standard diff --git a/python/packages/ag-ui/README.md b/python/packages/ag-ui/README.md index ea677bd2220..d4f8d640174 100644 --- a/python/packages/ag-ui/README.md +++ b/python/packages/ag-ui/README.md @@ -327,7 +327,8 @@ Additional compatibility and draft support: - Native `Workflow` endpoint registration via `add_agent_framework_fastapi_endpoint(...)` - Workflow-to-AG-UI event mapping (run/step/activity/tool/custom events) - Custom event compatibility for inbound `CUSTOM`, `CUSTOM_EVENT`, and `custom_event` -- Pragmatic multimodal input parsing for both legacy (`binary`) and draft media-part shapes +- Pragmatic multimodal input parsing for both legacy (`binary`) and AG-UI 1.0 media-part shapes +- Works with `ag-ui-protocol` 0.1.x and 1.x; with 1.x, `RUN_STARTED` declares `protocolVersion` - Canonical interrupt/resume handling (`availableInterrupts`, `resume`, and `RUN_FINISHED.outcome.interrupts`) ## Security: Authentication & Authorization diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py b/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py index 5d2eabb2736..b4851854f4e 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py @@ -18,7 +18,6 @@ CustomEvent, MessagesSnapshotEvent, RunErrorEvent, - RunStartedEvent, StateSnapshotEvent, TextMessageContentEvent, TextMessageEndEvent, @@ -89,10 +88,16 @@ InRunPendingToolTransitionOwner, ) from ._approval_state import _APPROVAL_SCOPE_INPUT_KEY, InMemoryAGUIApprovalStateStore, approval_state_thread_id -from ._message_adapters import _APPROVAL_DECISION_IS_BOOLEAN_KEY, normalize_agui_input_messages +from ._message_adapters import ( + _function_result_to_agui_content, + _APPROVAL_DECISION_IS_BOOLEAN_KEY, + normalize_agui_input_messages, + snapshot_messages_for_wire, +) from ._predictive_state import PredictiveStateHandler from ._tooling import collect_server_tools, merge_tools from ._run_common import ( + _build_run_started_event, FlowState, _approval_interrupt_for_function_call, # type: ignore _approval_steps_response_schema, # type: ignore @@ -758,7 +763,7 @@ def _run_start_events( resolved_approval_results: list[Content], ) -> list[BaseEvent]: """Build the events that open an agent run: RUN_STARTED, PredictState, initial state, and approval results.""" - events: list[BaseEvent] = [RunStartedEvent(run_id=run_id, thread_id=thread_id)] + events: list[BaseEvent] = [_build_run_started_event(run_id, thread_id)] if predict_state_config: predict_state_value = [ { @@ -2244,11 +2249,14 @@ def _resolved_tool_result_snapshot_messages(resolved_messages: list[Message]) -> llm_result = _stringify_tool_result(content.result if content.result is not None else "") display_result = _extract_tool_result_display(content) has_host_payload, host_payload = _resolve_tool_result_host_payload(content, display_result) + # A result holding media keeps it as content parts (with ag-ui-protocol 1.0); see + # _function_result_to_agui_content. Host-payload results keep their own fields below. + agui_content = llm_result if has_host_payload else _function_result_to_agui_content(content) snapshot_message: dict[str, Any] = { "id": msg.message_id if msg.message_id and len(function_results) == 1 else generate_event_id(), "role": "tool", "toolCallId": call_id, - "content": llm_result, + "content": agui_content if isinstance(agui_content, list) else llm_result, } if has_host_payload: snapshot_message.update( @@ -2362,7 +2370,9 @@ def _build_messages_snapshot( if flow.snapshot_segments: _append_segmented_snapshot_messages(flow, all_messages) bounded_messages = _bound_host_payload_history(_persistable_host_payload_history(all_messages)) - return MessagesSnapshotEvent(messages=_project_host_payload_history(bounded_messages)) # type: ignore[arg-type] + return MessagesSnapshotEvent( + messages=snapshot_messages_for_wire(_project_host_payload_history(bounded_messages)) # type: ignore[arg-type] + ) # Add assistant message with tool calls only (no content) if flow.pending_tool_calls: @@ -2397,7 +2407,7 @@ def _build_messages_snapshot( all_messages.extend(flow.reasoning_messages) bounded_messages = _bound_host_payload_history(_persistable_host_payload_history(all_messages)) - return MessagesSnapshotEvent(messages=_project_host_payload_history(bounded_messages)) # type: ignore[arg-type] + return MessagesSnapshotEvent(messages=snapshot_messages_for_wire(_project_host_payload_history(bounded_messages))) # type: ignore[arg-type] def _safe_point_tool_call_ids(flow: FlowState) -> set[str]: @@ -2488,7 +2498,7 @@ def _build_safe_point_messages_snapshot( all_messages.extend(results) bounded_messages = _bound_host_payload_history(_persistable_host_payload_history(all_messages)) - return MessagesSnapshotEvent(messages=_project_host_payload_history(bounded_messages)) # type: ignore[arg-type] + return MessagesSnapshotEvent(messages=snapshot_messages_for_wire(_project_host_payload_history(bounded_messages))) # type: ignore[arg-type] def _text_events_to_snapshot_messages(events: list[BaseEvent]) -> list[dict[str, Any]]: @@ -3001,7 +3011,7 @@ async def _run_agent_stream( resume_payload, translated_message_ids, legacy_resume_error = legacy_resume raw_messages[:] = [message for message in raw_messages if id(message) not in translated_message_ids] if legacy_resume_error is not None: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent(message=legacy_resume_error, code="APPROVAL_RESUME_INVALID") return approval_resume_messages, handled_resume_ids, cancelled_resume_ids, resume_error = ( @@ -3020,7 +3030,7 @@ async def _run_agent_stream( ) ) if resume_error is not None: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) resume_error_code = getattr(resume_error, "code", None) should_clear_tool_approval_state = resume_error_code == "APPROVAL_RESUME_CANCELLED" or ( resume_error_code == "APPROVAL_RESUME_NOT_FOUND" @@ -3071,7 +3081,7 @@ async def _run_agent_stream( # Fully handled via retained results. Reconstruction may have refilled # ``raw_messages`` with the stored transcript on a client-replayed retry; # do not fall through to a fresh agent run (#8140 / eavan review). - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) for event in _make_approval_tool_result_events(retained_approval_results): yield event yield _build_run_finished_event(run_id=run_id, thread_id=thread_id) @@ -3104,7 +3114,7 @@ async def _run_agent_stream( # Handle empty messages (emit RunStarted immediately since no agent response) if not messages and not only_cancelled_resume: logger.warning("No messages provided in AG-UI input") - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield _build_run_finished_event(run_id=run_id, thread_id=thread_id) return @@ -3246,7 +3256,7 @@ async def save_thread_snapshot( ) if only_cancelled_resume: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) _clear_tool_approval_state(approval_state_store, approval_thread_id) retired_interrupt_ids = { reconciliation.interrupt_id @@ -3346,7 +3356,7 @@ async def save_thread_snapshot( for intent in authorized_executions.values(): approval_state_store.lifecycle.release_claim(intent, policy=ClaimRecoveryPolicy.SAFE_TO_RETRY) unavailable_names = ", ".join(sorted({intent.name for intent in unavailable_local_intents})) - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent( message=f"Approved tool(s) {unavailable_names} are temporarily unavailable; retry the approval later.", code="APPROVAL_TOOL_UNAVAILABLE", @@ -3393,7 +3403,7 @@ async def save_thread_snapshot( } if retired_interrupt_ids: await snapshot_session.clear_interrupts(interrupt_ids=retired_interrupt_ids) - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent( message="Function invocation is disabled; the approved tool remains pending for an explicit retry.", code="APPROVAL_INVOCATION_DISABLED", @@ -3466,7 +3476,7 @@ def merge_snapshot_interrupts( return combined or None if replacement_approval_requests: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) for request in replacement_approval_requests: for event in _emit_content( request, @@ -3525,7 +3535,7 @@ def merge_snapshot_interrupts( confirm_remaining_interrupts = remaining_stored_interrupts( {str(confirm_interrupt_id)} if confirm_interrupt_id else set() ) - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) # Emit approved state snapshot before confirmation message if approved_state_snapshot_emitted: yield StateSnapshotEvent(snapshot=flow.current_state) @@ -3783,7 +3793,7 @@ async def save_safe_point_snapshot() -> None: stream_completed = True except ApprovalInvocationDisabledError: if not run_started_emitted: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent( message="Function invocation is disabled; the approved tool remains pending for an explicit retry.", code="APPROVAL_INVOCATION_DISABLED", diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_event_converters.py b/python/packages/ag-ui/agent_framework_ag_ui/_event_converters.py index 08b3614a37b..b0f7cc536c3 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_event_converters.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_event_converters.py @@ -16,6 +16,8 @@ Message, ) +from ._message_adapters import _tool_content_parts_to_result + logger = logging.getLogger(__name__) @@ -261,6 +263,11 @@ def _handle_tool_call_result(self, event: dict[str, Any]) -> ChatResponseUpdate: """Handle TOOL_CALL_RESULT event.""" tool_call_id = self._get_tool_call_id(event) or "" result = event.get("result") if event.get("result") is not None else event.get("content") + if isinstance(result, list): + # An AG-UI 1.0 ContentPart[] result: pass media on as Content items, as for tool messages. + converted = _tool_content_parts_to_result(cast(list[Any], result), tool_call_id) + if converted is not None: + result = converted return ChatResponseUpdate( role="tool", diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_message_adapters.py b/python/packages/ag-ui/agent_framework_ag_ui/_message_adapters.py index 507c4dbf263..0bd567d162d 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_message_adapters.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_message_adapters.py @@ -22,6 +22,7 @@ from ._utils import ( _AGUI_HOST_PAYLOAD_OMITTED_KEY, _AGUI_MCP_TOOL_RESULT_KEY, + _AGUI_PROTOCOL_VERSION, _AGUI_TOOL_RESULT_HOST_PAYLOAD_KEY, _AGUI_TOOL_RESULT_MODEL_CONTENT_KEY, _MAX_MCP_HOST_PAYLOAD_HISTORY_SIZE_BYTES, @@ -329,12 +330,11 @@ def _deduplicate_messages(messages: list[Message]) -> list[Message]: existing_idx = seen_keys[key] existing_msg = unique_messages[existing_idx] - existing_result = None + existing_empty = True if existing_msg.contents and existing_msg.contents[0].type == "function_result": - existing_result = existing_msg.contents[0].result - new_result = msg.contents[0].result + existing_empty = not _function_result_has_output(existing_msg.contents[0]) - if (not existing_result or existing_result == "") and new_result: + if existing_empty and _function_result_has_output(msg.contents[0]): logger.info(f"Replacing empty tool result at index {existing_idx} with data from index {idx}") unique_messages[existing_idx] = msg else: @@ -407,7 +407,9 @@ def _extract_multimodal_source_fields( elif source_type in {"base64", "data", "binary"}: data = cast(str | None, source_dict.get("value") or source_dict.get("data")) elif source_type in {"id", "file"}: - binary_id = cast(str | None, source_dict.get("id")) + # An AG-UI 1.0 file source carries its provider-issued handle in ``value``; like an ``id`` reference, + # it is unresolved and left to application-owned policy. + binary_id = cast(str | None, source_dict.get("id") or source_dict.get("value")) else: url = cast(str | None, source_dict.get("url") or source_dict.get("uri") or url) data = cast(str | None, source_dict.get("value") or source_dict.get("data") or data) @@ -476,6 +478,61 @@ def _parse_multimodal_media_part(part: dict[str, Any]) -> Content | None: return None +def _snapshot_media_part(part: dict[str, Any]) -> dict[str, Any] | None: + """Convert a legacy ``binary`` part to the AG-UI 1.0 media part shape (``image``/``audio``/``video``/``document``). + + AG-UI 1.0 removed the ``binary`` part, so a snapshot holding one fails validation. The part is mapped to the + media type its MIME type names. Returns ``None`` for a part that only references a binary ``id``, which has no + 1.0 representation. + """ + url, data, _, mime_type = _extract_multimodal_source_fields(part) + top_level_type = (mime_type or "").split("/", 1)[0].lower() + part_type = top_level_type if top_level_type in {"image", "audio", "video"} else "document" + + source: dict[str, Any] + if isinstance(url, str) and url: + source = {"type": "url", "value": url} + elif isinstance(data, str) and data: + source = {"type": "url", "value": data} if data.startswith("data:") else {"type": "data", "value": data} + if source["type"] == "data" and not mime_type: + mime_type = "application/octet-stream" + else: + logger.warning("Omitting an AG-UI %s part without a url or data source from MESSAGES_SNAPSHOT.", part_type) + return None + if mime_type: + source["mimeType"] = mime_type + return {"type": part_type, "source": source} + + +def snapshot_messages_for_wire(messages: list[dict[str, Any]]) -> list[dict[str, Any]]: + """Rewrite legacy ``binary`` parts in snapshot messages to the AG-UI 1.0 media part shape. + + Snapshot messages keep media as ``binary`` parts (and thread snapshots saved earlier hold them too), which a + 1.0 ``MessagesSnapshotEvent`` rejects. Every snapshot event passes its messages through here, so media + replays with ag-ui-protocol 1.0; before 1.0 the messages are returned unchanged. + """ + if _AGUI_PROTOCOL_VERSION is None: + return messages + upgraded: list[dict[str, Any]] = [] + for message in messages: + content = message.get("content") + if not isinstance(content, list) or not any( + isinstance(part, dict) and cast(dict[str, Any], part).get("type") == "binary" + for part in cast(list[Any], content) + ): + upgraded.append(message) + continue + parts: list[Any] = [] + for part in cast(list[Any], content): + if isinstance(part, dict) and cast(dict[str, Any], part).get("type") == "binary": + if (media_part := _snapshot_media_part(cast(dict[str, Any], part))) is not None: + parts.append(media_part) + else: + parts.append(part) + upgraded.append({**message, "content": parts}) + return upgraded + + def sanitize_legacy_snapshot_media( messages: list[dict[str, Any]], ) -> tuple[list[dict[str, Any]], int]: @@ -636,6 +693,43 @@ def _legacy_binary_part(part: dict[str, Any]) -> dict[str, Any]: return content +def _tool_content_parts_to_result(content: list[Any], tool_call_id: str) -> str | list[Content] | None: + """Convert an AG-UI ``ContentPart[]`` tool result to a function result. + + Text-only content becomes its concatenated text. When media parts are present, every part becomes a Content + item (media parts the same way as user media), so chat clients with rich function output receive the media. + Parts that cannot be represented are dropped with a warning. Returns ``None`` when ``content`` is not a list + of content parts, so other list payloads keep their existing handling. + """ + # "binary" is the shape stored snapshots keep tool media in, so replayed history converts the same way. + content_part_types = {"text", "image", "audio", "video", "document", "binary"} + if not content or not all( + isinstance(part, dict) and cast(dict[str, Any], part).get("type") in content_part_types for part in content + ): + return None + parts = cast(list[dict[str, Any]], content) + if all(part["type"] == "text" for part in parts): + return "".join(str(part.get("text", "")) for part in parts) + + items: list[Content] = [] + dropped: list[str] = [] + for part in parts: + if part["type"] == "text": + items.append(Content.from_text(text=str(part.get("text", "")))) + elif (media_content := _parse_multimodal_media_part(part)) is not None: + items.append(media_content) + else: + dropped.append(str(part["type"])) + if dropped: + logger.warning( + "Dropping %d media part(s) (%s) without a usable source from the result of tool call %r.", + len(dropped), + ", ".join(dropped), + tool_call_id, + ) + return items or "" + + def normalize_agui_input_messages( messages: list[dict[str, Any]], *, @@ -803,6 +897,10 @@ def _filter_modified_args( result_content = msg.get("content") if result_content is None: result_content = msg.get("result", "") + elif isinstance(result_content, list): + converted = _tool_content_parts_to_result(cast(list[Any], result_content), str(tool_call_id)) + if converted is not None: + result_content = converted # Distinguish approval payloads from actual tool results parsed: dict[str, Any] | None = None @@ -1119,6 +1217,36 @@ def _convert_framework_content_to_agui(content: Content) -> dict[str, Any] | Non return {"type": part_type, "source": source} +def _function_result_has_output(content: Content) -> bool: + """Whether a function result carries any output: text, or media items (an image-only result has no text).""" + if content.result: + return True + return any(item.type in {"uri", "data"} for item in content.items or []) + + +def _function_result_to_agui_content(content: Content) -> str | list[dict[str, Any]]: + """Encode a function result as AG-UI tool message content. + + A result holding media items becomes AG-UI 1.0 content parts, so media received from a tool result survives + into the next request's history; that needs ag-ui-protocol 1.0, since earlier tool messages only take text. + Any other result is its text, as before. MCP results keep their own handling: their model content travels in + a sidecar that host-history budgeting may deliberately omit. + """ + text = content.result if content.result is not None else "" + items = content.items or [] + if _AGUI_PROTOCOL_VERSION is None or not any(item.type in {"uri", "data"} for item in items): + return text + if _extract_mcp_tool_result_host_payload(content)[0]: + return text + parts: list[dict[str, Any]] = [] + for item in items: + if item.type == "text": + parts.append({"type": "text", "text": item.text or ""}) + elif (media_part := _convert_framework_content_to_agui(item)) is not None: + parts.append(media_part) + return parts or text + + def _encode_agui_segment(contents: list[Content], role: str) -> tuple[str | list[dict[str, Any]], list[dict[str, Any]]]: """Encode a framework content segment into AG-UI message content and tool calls. @@ -1236,7 +1364,7 @@ def emit_result(content: Content) -> None: tool_message: dict[str, Any] = { "id": next_id(), "role": "tool", - "content": content.result if content.result is not None else "", + "content": _function_result_to_agui_content(content), "toolCallId": content.call_id, } messages.append(tool_message) diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_predictive_state.py b/python/packages/ag-ui/agent_framework_ag_ui/_predictive_state.py index 99c18b9e45c..04a487bbaf6 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_predictive_state.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_predictive_state.py @@ -215,15 +215,9 @@ def _create_delta_event(self, state_key: str, value: Any) -> StateDeltaEvent: elif self.state_delta_count % 100 == 0: logger.info(f"StateDeltaEvent #{self.state_delta_count} emitted") - return StateDeltaEvent( - delta=[ - { - "op": "replace", - "path": f"/{state_key}", - "value": value, - } - ], - ) + # A JSON Patch as plain operation dicts: ag-ui-protocol 1.0 validates them into operation models. + delta: list[Any] = [{"op": "replace", "path": f"/{state_key}", "value": value}] + return StateDeltaEvent(delta=delta) def apply_pending_updates(self) -> None: """Apply pending updates to current state and clear them.""" diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py b/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py index 73e343e57ed..cd6f0479690 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py @@ -24,6 +24,7 @@ ReasoningStartEvent, RunFinishedEvent, RunFinishedInterruptOutcome, + RunStartedEvent, StateSnapshotEvent, TextMessageContentEvent, TextMessageEndEvent, @@ -38,6 +39,7 @@ from ._predictive_state import PredictiveStateHandler from ._state import TOOL_RESULT_DISPLAY_KEY, TOOL_RESULT_STATE_KEY from ._utils import ( + _AGUI_PROTOCOL_VERSION, _approval_interrupt_id, _extract_mcp_tool_result_host_payload, _extract_tool_result_marker_values, @@ -505,6 +507,18 @@ def _approval_interrupt_for_function_call( } +def _build_run_started_event(run_id: str, thread_id: str) -> RunStartedEvent: + """Create a RUN_STARTED event that declares the AG-UI protocol version this producer speaks. + + AG-UI 1.0 requires a producer to declare ``protocolVersion`` on the event that opens a run, and the + ``ag-ui-protocol`` SDK leaves it unset by default. Releases before 1.0 have no such field, so nothing is + declared there. Every RUN_STARTED is built here so no emitter can forget the declaration. + """ + if _AGUI_PROTOCOL_VERSION is None: + return RunStartedEvent(run_id=run_id, thread_id=thread_id) + return RunStartedEvent(run_id=run_id, thread_id=thread_id, protocol_version=_AGUI_PROTOCOL_VERSION) + + def _build_run_finished_event( run_id: str, thread_id: str, interrupts: list[dict[str, Any]] | None = None ) -> RunFinishedEvent: diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_snapshot_session.py b/python/packages/ag-ui/agent_framework_ag_ui/_snapshot_session.py index 85546830245..a1275ee8349 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_snapshot_session.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_snapshot_session.py @@ -18,12 +18,11 @@ from ag_ui.core import ( BaseEvent, MessagesSnapshotEvent, - RunStartedEvent, StateSnapshotEvent, ) -from ._message_adapters import sanitize_legacy_snapshot_media -from ._run_common import _build_run_finished_event +from ._message_adapters import sanitize_legacy_snapshot_media, snapshot_messages_for_wire +from ._run_common import _build_run_finished_event, _build_run_started_event from ._snapshots import ( AGUIThreadSnapshot, AGUIThreadSnapshotStore, @@ -109,7 +108,7 @@ def rebind_thread_id(self, thread_id: str) -> None: async def hydrate_events(self, *, run_id: str) -> AsyncGenerator[BaseEvent]: """Replay the stored snapshot as a complete run without invoking the agent.""" - yield RunStartedEvent(run_id=run_id, thread_id=self._thread_id) + yield _build_run_started_event(run_id, self._thread_id) snapshot = self._stored if snapshot is None: yield _build_run_finished_event(run_id=run_id, thread_id=self._thread_id) @@ -118,7 +117,9 @@ async def hydrate_events(self, *, run_id: str) -> AsyncGenerator[BaseEvent]: if snapshot.state is not None: yield StateSnapshotEvent(snapshot=snapshot.state) if snapshot.messages: - yield MessagesSnapshotEvent(messages=_project_host_payload_history(snapshot.messages)) # type: ignore[arg-type] + yield MessagesSnapshotEvent( + messages=snapshot_messages_for_wire(_project_host_payload_history(snapshot.messages)) # type: ignore[arg-type] + ) yield _build_run_finished_event(run_id=run_id, thread_id=self._thread_id, interrupts=snapshot.interrupt) def effective_state( diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_utils.py b/python/packages/ag-ui/agent_framework_ag_ui/_utils.py index 233355d27c4..c33668222d1 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_utils.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_utils.py @@ -10,10 +10,18 @@ from collections.abc import Callable, MutableMapping, Sequence from typing import Any +import ag_ui.core as _agui_core from agent_framework import AgentResponseUpdate, ChatResponseUpdate, Content, FunctionTool from agent_framework import _mcp as _core_mcp # pyright: ignore[reportPrivateUsage] from agent_framework._serialization import make_json_safe # pyright: ignore[reportPrivateUsage] +_AGUI_PROTOCOL_VERSION: str | None = getattr(_agui_core, "PROTOCOL_VERSION", None) +"""The AG-UI protocol version the installed ``ag-ui-protocol`` speaks, or ``None`` before 1.0. + +Releases before 1.0 have no version to declare and still accept the legacy ``binary`` part, which 1.0 rejects, +so code that emits version-specific shapes gates on this value. +""" + def _mcp_tool_result_host_payload_key(core_mcp: Any) -> str: """Resolve the private core marker while supporting older core packages.""" diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_workflow.py b/python/packages/ag-ui/agent_framework_ag_ui/_workflow.py index 962ccb384ab..b5afbba5769 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_workflow.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_workflow.py @@ -22,7 +22,6 @@ ReasoningStartEvent, RunErrorEvent, RunFinishedEvent, - RunStartedEvent, StateSnapshotEvent, TextMessageContentEvent, TextMessageEndEvent, @@ -33,10 +32,12 @@ ) from agent_framework import CheckpointID, CheckpointStorage, Content, Message, Workflow, WorkflowCheckpoint from agent_framework._telemetry import mark_feature_used +from pydantic import BaseModel from ._feature_usage import FeatureIndex from ._message_adapters import agent_framework_messages_to_agui, agui_messages_to_snapshot_format from ._run_common import ( + _build_run_started_event, _cancelled_resume_interrupt_ids, _extract_resume_payload, _is_snapshot_hydration_request, @@ -400,7 +401,8 @@ def _observe_text_start(self, event: TextMessageStartEvent) -> None: self._flush_open_reasoning_message() if self._open_text_message is not None and self._open_text_message.get("id") != event.message_id: self._flush_open_text_message() - self._open_text_message = {"id": event.message_id, "role": event.role, "content": ""} + # ag-ui-protocol 1.0 no longer defaults the role to "assistant"; a stored message needs one to replay. + self._open_text_message = {"id": event.message_id, "role": event.role or "assistant", "content": ""} def _observe_text_content(self, event: TextMessageContentEvent) -> None: if self._open_text_message is None or self._open_text_message.get("id") != event.message_id: @@ -465,7 +467,14 @@ def _observe_tool_call_result(self, event: ToolCallResultEvent) -> None: "id": event.message_id, "role": "tool", "toolCallId": event.tool_call_id, - "content": event.content, + # ag-ui-protocol 1.0 parses content parts into models; store them as wire dictionaries so the + # snapshot serializes and replays like any other stored message. + "content": [ + part.model_dump(by_alias=True, exclude_none=True) if isinstance(part, BaseModel) else part + for part in cast(list[Any], event.content) + ] + if isinstance(event.content, list) + else event.content, } if getattr(event, _AGUI_MCP_TOOL_RESULT_KEY, False) is True: message[_AGUI_MCP_TOOL_RESULT_KEY] = True @@ -767,7 +776,7 @@ async def run(self, input_data: dict[str, Any]) -> AsyncGenerator[BaseEvent]: for request_event in live_pending_events.values(): owner = getattr(request_event, _REQUEST_OWNER_ATTRIBUTE, None) if owner != request_owner and (owner is not None or request_owner != (None, None)): - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent( message="No pending interrupt found for this AG-UI thread.", code="WORKFLOW_RESUME_NOT_FOUND", @@ -779,14 +788,14 @@ async def run(self, input_data: dict[str, Any]) -> AsyncGenerator[BaseEvent]: raise LookupError(f"checkpoint '{checkpoint_id}' was not found") checkpoint = await owned_checkpoint_storage.load(checkpoint_id) except PermissionError: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent( message=f"No pending interrupt found for checkpointId '{checkpoint_id}'.", code="WORKFLOW_RESUME_NOT_FOUND", ) return except Exception as exc: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent( message=f"Could not load workflow checkpoint '{checkpoint_id}': {exc}", code="WORKFLOW_CHECKPOINT_LOAD_FAILED", @@ -802,7 +811,7 @@ async def run(self, input_data: dict[str, Any]) -> AsyncGenerator[BaseEvent]: request_event = live_pending_events.get(interrupt_id) owner = getattr(request_event, _REQUEST_OWNER_ATTRIBUTE, None) if owner != request_owner and (owner is not None or request_owner != (None, None)): - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent( message=f"No pending interrupt found for resume interruptId '{interrupt_id}'.", code="WORKFLOW_RESUME_NOT_FOUND", diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_workflow_run.py b/python/packages/ag-ui/agent_framework_ag_ui/_workflow_run.py index fa92cd400ce..6ba64fcf11d 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_workflow_run.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_workflow_run.py @@ -18,7 +18,6 @@ BaseEvent, CustomEvent, RunErrorEvent, - RunStartedEvent, StepFinishedEvent, StepStartedEvent, TextMessageEndEvent, @@ -50,6 +49,7 @@ _approval_interrupt_for_function_call, # pyright: ignore[reportPrivateUsage] _approval_response_schema, # pyright: ignore[reportPrivateUsage] _build_run_finished_event, + _build_run_started_event, _close_reasoning_block, _emit_content, _extract_resume_payload, @@ -1221,12 +1221,12 @@ async def run_workflow_stream( missing_code="WORKFLOW_RESUME_MISSING_INTERRUPT", ) if contract_error is not None and contract_code is not None: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent(message=contract_error, code=contract_code) return resume_error = _resume_error_for_pending_workflow_requests(resume_entries) if resume_error is not None: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield resume_error return cancelled_request_ids = { @@ -1248,7 +1248,7 @@ async def run_workflow_stream( responses, pending_before_run, on_conversational_responses=on_conversational_responses ) if response_error is not None: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield response_error return if cancelled_request_ids: @@ -1270,7 +1270,7 @@ async def run_workflow_stream( # checkpoint. ``pending_before_run`` reflects the live (pre-restore) instance, so # short-circuiting on it here would skip the restore entirely. if checkpoint_id is None and not responses and pending_before_run: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) for request_event in pending_before_run.values(): request_payload = _request_payload_from_request_event(request_event) if request_payload is None: @@ -1296,7 +1296,7 @@ async def run_workflow_stream( return if checkpoint_id is None and not responses and not messages: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) yield _build_run_finished_event( run_id=run_id, thread_id=thread_id, @@ -1409,12 +1409,12 @@ def _drain_open_blocks() -> list[BaseEvent]: if event_type == "started": if not run_started_emitted: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) run_started_emitted = True continue if not run_started_emitted: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) run_started_emitted = True if event_type == "failed": @@ -1582,7 +1582,7 @@ def _drain_open_blocks() -> list[BaseEvent]: failure_event = None logger.exception("Workflow AG-UI stream failed: %s", exc) if not run_started_emitted: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) run_started_emitted = True # Close any open reasoning block / text message so RUN_ERROR stays the final event. for end_event in _drain_open_blocks(): @@ -1611,7 +1611,7 @@ def _drain_open_blocks() -> list[BaseEvent]: yield end_event if not run_started_emitted: - yield RunStartedEvent(run_id=run_id, thread_id=thread_id) + yield _build_run_started_event(run_id, thread_id) if not terminal_emitted and not run_error_emitted: if not interrupts: diff --git a/python/packages/ag-ui/agent_framework_ag_ui_examples/agents/task_steps_agent.py b/python/packages/ag-ui/agent_framework_ag_ui_examples/agents/task_steps_agent.py index b3c02e57a0b..5c14535279f 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui_examples/agents/task_steps_agent.py +++ b/python/packages/ag-ui/agent_framework_ag_ui_examples/agents/task_steps_agent.py @@ -25,6 +25,9 @@ from pydantic import BaseModel, Field from agent_framework_ag_ui import AgentFrameworkWorkflow +from agent_framework_ag_ui._message_adapters import ( + snapshot_messages_for_wire, +) class StepStatus(str, Enum): @@ -149,7 +152,9 @@ async def run(self, input_data: dict[str, Any]) -> AsyncGenerator[Any]: case StateDeltaEvent(delta=delta): # Apply state delta to final_state if delta: - for patch in delta: + for operation in delta: + # ag-ui-protocol 1.0 parses JSON Patch operations into models; 0.1.x keeps dicts. + patch = operation.model_dump() if isinstance(operation, BaseModel) else operation if patch.get("op") == "replace" and patch.get("path") == "/steps": final_state["steps"] = patch.get("value", []) logger.info( @@ -291,9 +296,10 @@ async def run(self, input_data: dict[str, Any]) -> AsyncGenerator[Any]: final_messages.append(summary_message) # Emit MessagesSnapshotEvent to persist in history + # Legacy binary attachments in the history must take the AG-UI 1.0 media shape first. yield MessagesSnapshotEvent( type=EventType.MESSAGES_SNAPSHOT, - messages=final_messages, + messages=snapshot_messages_for_wire(final_messages), ) except Exception as e: logger.error(f"Error generating summary: {e}") diff --git a/python/packages/ag-ui/pyproject.toml b/python/packages/ag-ui/pyproject.toml index 1081cf71c50..b4adb61ab53 100644 --- a/python/packages/ag-ui/pyproject.toml +++ b/python/packages/ag-ui/pyproject.toml @@ -25,7 +25,7 @@ classifiers = [ ] dependencies = [ "agent-framework-core>=1.20.0,<2", - "ag-ui-protocol>=0.1.19,<0.2", + "ag-ui-protocol>=0.1.19,<2", "fastapi>=0.121.0,<0.142.0", "httpx>=0.28.1,<1", "sse-starlette>=3.4.5,<4", diff --git a/python/packages/ag-ui/tests/ag_ui/test_predictive_state.py b/python/packages/ag-ui/tests/ag_ui/test_predictive_state.py index 5d9a5ec3417..c660967b5a7 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_predictive_state.py +++ b/python/packages/ag-ui/tests/ag_ui/test_predictive_state.py @@ -2,11 +2,18 @@ """Tests for predictive state handling.""" +from typing import Any + from ag_ui.core import StateDeltaEvent from agent_framework_ag_ui._predictive_state import PredictiveStateHandler +def _first_op(event: StateDeltaEvent) -> dict[str, Any]: + """Return the event's first JSON Patch operation as a dict, however ag-ui-protocol models it.""" + return event.model_dump()["delta"][0] + + class TestPredictiveStateHandlerInit: """Tests for PredictiveStateHandler initialization.""" @@ -155,9 +162,9 @@ def test_emits_delta_on_complete_json(self): events = handler.emit_streaming_deltas("write", '{"text": "hello"}') assert len(events) == 1 assert isinstance(events[0], StateDeltaEvent) - assert events[0].delta[0]["path"] == "/doc" - assert events[0].delta[0]["value"] == "hello" - assert events[0].delta[0]["op"] == "replace" + assert _first_op(events[0])["path"] == "/doc" + assert _first_op(events[0])["value"] == "hello" + assert _first_op(events[0])["op"] == "replace" def test_emits_delta_on_partial_json(self): """Emits delta from partial JSON using regex.""" @@ -165,7 +172,7 @@ def test_emits_delta_on_partial_json(self): # First chunk - partial events = handler.emit_streaming_deltas("write", '{"text": "hel') assert len(events) == 1 - assert events[0].delta[0]["value"] == "hel" + assert _first_op(events[0])["value"] == "hel" def test_does_not_emit_duplicate_deltas(self): """Does not emit delta when value unchanged.""" @@ -190,7 +197,7 @@ def test_emits_delta_on_value_change(self): handler.streaming_tool_args = "" events2 = handler.emit_streaming_deltas("write", '{"text": "world"}') assert len(events2) == 1 - assert events2[0].delta[0]["value"] == "world" + assert _first_op(events2[0])["value"] == "world" def test_tracks_pending_updates(self): """Tracks pending state updates.""" @@ -208,7 +215,7 @@ def test_unescapes_newlines(self): handler.streaming_tool_args = '{"text": "line1\\nline2' events = handler._emit_partial_deltas("write") assert len(events) == 1 - assert events[0].delta[0]["value"] == "line1\nline2" + assert _first_op(events[0])["value"] == "line1\nline2" def test_handles_escaped_quotes_partially(self): """Handles escaped quotes - regex stops at quote character.""" @@ -225,7 +232,7 @@ def test_handles_escaped_quotes_partially(self): # After .replace("\\\\", "\\") -> "say \" # After .replace('\\"', '"') -> "say " (but actually still "say \" due to order) # The actual result: backslash is preserved since it's not a valid escape sequence - assert events[0].delta[0]["value"] == "say \\" + assert _first_op(events[0])["value"] == "say \\" def test_unescapes_backslashes(self): """Unescapes \\\\ in partial values.""" @@ -233,7 +240,7 @@ def test_unescapes_backslashes(self): handler.streaming_tool_args = '{"text": "path\\\\to\\\\file' events = handler._emit_partial_deltas("write") assert len(events) == 1 - assert events[0].delta[0]["value"] == "path\\to\\file" + assert _first_op(events[0])["value"] == "path\\to\\file" class TestEmitCompleteDeltas: @@ -244,7 +251,7 @@ def test_emits_for_matching_tool(self): handler = PredictiveStateHandler(predict_state_config={"doc": {"tool": "write", "tool_argument": "text"}}) events = handler._emit_complete_deltas("write", {"text": "content"}) assert len(events) == 1 - assert events[0].delta[0]["value"] == "content" + assert _first_op(events[0])["value"] == "content" def test_skips_non_matching_tool(self): """Skips tools not matching config.""" @@ -258,7 +265,7 @@ def test_handles_wildcard_argument(self): args = {"key1": "val1", "key2": "val2"} events = handler._emit_complete_deltas("update", args) assert len(events) == 1 - assert events[0].delta[0]["value"] == args + assert _first_op(events[0])["value"] == args def test_skips_missing_argument(self): """Skips when tool_argument not in args.""" @@ -276,9 +283,9 @@ def test_creates_event(self): event = handler._create_delta_event("key", "value") assert isinstance(event, StateDeltaEvent) - assert event.delta[0]["op"] == "replace" - assert event.delta[0]["path"] == "/key" - assert event.delta[0]["value"] == "value" + assert _first_op(event)["op"] == "replace" + assert _first_op(event)["path"] == "/key" + assert _first_op(event)["value"] == "value" def test_increments_count(self): """Increments state_delta_count.""" diff --git a/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py b/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py new file mode 100644 index 00000000000..c5982f5b9e0 --- /dev/null +++ b/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py @@ -0,0 +1,322 @@ +# Copyright (c) Microsoft. All rights reserved. + +"""AG-UI 1.0 behaviour that holds on every supported ag-ui-protocol release.""" + +import json +from typing import Any + +import pytest +from ag_ui.core import ( + EventType, + MessagesSnapshotEvent, + TextMessageContentEvent, + TextMessageEndEvent, + TextMessageStartEvent, + ToolCallResultEvent, + ToolCallStartEvent, +) +from agent_framework import Content, Message + +from agent_framework_ag_ui._agent_run import _resolved_tool_result_snapshot_messages +from agent_framework_ag_ui._event_converters import AGUIEventConverter +from agent_framework_ag_ui._message_adapters import ( + _deduplicate_messages, + agent_framework_messages_to_agui, + agui_messages_to_agent_framework, + snapshot_messages_for_wire, +) +from agent_framework_ag_ui._run_common import _build_run_started_event +from agent_framework_ag_ui._snapshot_session import ThreadSnapshotSession +from agent_framework_ag_ui._snapshots import AGUIThreadSnapshot +from agent_framework_ag_ui._utils import _AGUI_PROTOCOL_VERSION +from agent_framework_ag_ui._workflow import _WorkflowSnapshotBuilder + +requires_1_0 = pytest.mark.skipif(_AGUI_PROTOCOL_VERSION is None, reason="needs ag-ui-protocol >= 1.0") + + +def test_run_started_declares_the_protocol_version() -> None: + """RUN_STARTED declares the installed protocol version; releases before 1.0 have none to declare.""" + event = _build_run_started_event("run-1", "thread-1").model_dump(by_alias=True, exclude_none=True) + + assert event["type"] == EventType.RUN_STARTED + if _AGUI_PROTOCOL_VERSION is None: + assert "protocolVersion" not in event + else: + assert event["protocolVersion"] == _AGUI_PROTOCOL_VERSION + + +async def test_thread_saved_with_legacy_media_replays() -> None: + """A thread snapshot holding legacy ``binary`` media replays with whichever ag-ui-protocol is installed.""" + stored = AGUIThreadSnapshot( + messages=[ + { + "id": "u1", + "role": "user", + "content": [ + {"type": "text", "text": "look"}, + {"type": "binary", "url": "https://example.com/cat.png", "mimeType": "image/png"}, + ], + } + ] + ) + session = ThreadSnapshotSession(store=None, scope=None, thread_id="t1", stored=stored) + + events = [event async for event in session.hydrate_events(run_id="r1")] + + assert events[0].type == EventType.RUN_STARTED + snapshot = next(event for event in events if isinstance(event, MessagesSnapshotEvent)) + content = snapshot.messages[0].model_dump(by_alias=True, exclude_none=True)["content"] + if _AGUI_PROTOCOL_VERSION is None: + assert content[1]["type"] == "binary" + else: + assert content[1] == { + "type": "image", + "source": {"type": "url", "value": "https://example.com/cat.png", "mimeType": "image/png"}, + } + + +@requires_1_0 +def test_wire_snapshot_maps_legacy_media_by_mime_type() -> None: + """Legacy media becomes the 1.0 part its MIME type names; a bare id reference has no 1.0 form.""" + messages: list[dict[str, Any]] = [ + { + "id": "u1", + "role": "user", + "content": [ + {"type": "binary", "data": "YXVkaW8=", "mimeType": "audio/wav"}, + {"type": "binary", "url": "https://example.com/report.pdf", "mimeType": "application/pdf"}, + {"type": "binary", "id": "upload-1", "mimeType": "image/png"}, + {"type": "text", "text": "after"}, + ], + }, + {"id": "a1", "role": "assistant", "content": "unchanged"}, + ] + + wire = snapshot_messages_for_wire(messages) + + assert wire[0]["content"] == [ + {"type": "audio", "source": {"type": "data", "value": "YXVkaW8=", "mimeType": "audio/wav"}}, + { + "type": "document", + "source": {"type": "url", "value": "https://example.com/report.pdf", "mimeType": "application/pdf"}, + }, + {"type": "text", "text": "after"}, + ] + assert wire[1] is messages[1] + assert messages[0]["content"][0]["type"] == "binary", "the stored messages are not modified" + + +def _tool_turn(content: Any) -> list[dict[str, Any]]: + return [ + { + "id": "a1", + "role": "assistant", + "content": "", + "toolCalls": [{"id": "call-1", "type": "function", "function": {"name": "chart", "arguments": "{}"}}], + }, + {"id": "t1", "role": "tool", "toolCallId": "call-1", "content": content}, + ] + + +def _function_result(messages: list[dict[str, Any]]) -> Any: + converted = agui_messages_to_agent_framework(messages) + tool_message = next(message for message in converted if message.role == "tool") + return tool_message.contents[0] + + +def test_tool_result_media_reaches_the_function_result() -> None: + """Media in a 1.0 tool result is passed on as content, not as the text of the raw parts.""" + result = _function_result( + _tool_turn( + [ + {"type": "text", "text": "chart:"}, + { + "type": "image", + "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}, + }, + ] + ) + ) + + # Function results carry their output as Content items; ``result`` is only their text. + assert [item.type for item in result.items] == ["text", "uri"] + assert result.items[0].text == "chart:" + assert result.items[1].uri == "https://example.com/chart.png" + assert result.items[1].media_type == "image/png" + + +def test_text_only_tool_result_stays_text() -> None: + """A tool result of text parts only is passed on as its text.""" + result = _function_result(_tool_turn([{"type": "text", "text": "4"}, {"type": "text", "text": "2"}])) + + assert result.result == "42" + assert [item.type for item in result.items] == ["text"] + + +def test_file_source_is_an_unresolved_reference() -> None: + """A 1.0 file source is a provider-issued handle: it is rejected like an id reference, never read as data.""" + message = { + "role": "user", + "content": [ + {"type": "image", "source": {"type": "file", "value": "file-abc123", "provider": "openai"}}, + ], + } + + with pytest.raises(ValueError, match="Unresolved AG-UI multimodal binary references"): + agui_messages_to_agent_framework([message]) + + +def test_stored_tool_result_media_converts_on_replay() -> None: + """Tool media kept as ``binary`` parts in a stored snapshot reaches the function result when replayed.""" + result = _function_result( + _tool_turn( + [ + {"type": "text", "text": "chart:"}, + {"type": "binary", "url": "https://example.com/chart.png", "mimeType": "image/png"}, + ] + ) + ) + + assert [item.type for item in result.items] == ["text", "uri"] + assert result.items[1].uri == "https://example.com/chart.png" + + +def test_streamed_tool_result_media_reaches_the_function_result() -> None: + """A TOOL_CALL_RESULT event with content parts gives the client the same Content items as a tool message.""" + update = AGUIEventConverter().convert_event( + { + "type": "TOOL_CALL_RESULT", + "toolCallId": "call-1", + "content": [ + {"type": "text", "text": "chart:"}, + { + "type": "image", + "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}, + }, + ], + } + ) + + assert update is not None + items = update.contents[0].items + assert items is not None + assert [item.type for item in items] == ["text", "uri"] + assert items[1].uri == "https://example.com/chart.png" + + +def test_streamed_text_only_tool_result_stays_text() -> None: + """A TOOL_CALL_RESULT event of text parts gives its text, not the string form of the list.""" + update = AGUIEventConverter().convert_event( + { + "type": "TOOL_CALL_RESULT", + "toolCallId": "call-1", + "content": [{"type": "text", "text": "4"}, {"type": "text", "text": "2"}], + } + ) + + assert update is not None + assert update.contents[0].result == "42" + + +def test_workflow_text_without_a_role_snapshots_as_assistant() -> None: + """A text message started without a role (1.0's default) is stored, and replays, as the assistant's.""" + builder = _WorkflowSnapshotBuilder([]) + builder.observe(TextMessageStartEvent(message_id="text-1")) + builder.observe(TextMessageContentEvent(message_id="text-1", delta="hello")) + builder.observe(TextMessageEndEvent(message_id="text-1")) + + messages = builder.build().messages + + assert [(message["role"], message["content"]) for message in messages] == [("assistant", "hello")] + MessagesSnapshotEvent(messages=snapshot_messages_for_wire(messages)) # type: ignore[arg-type] + + +@requires_1_0 +def test_workflow_tool_media_snapshots_as_wire_parts() -> None: + """Tool media from a workflow is stored as wire dictionaries, so it serializes and replays as media.""" + image = { + "type": "image", + "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}, + } + builder = _WorkflowSnapshotBuilder([]) + builder.observe(ToolCallStartEvent(tool_call_id="call-1", tool_call_name="chart")) + builder.observe( + ToolCallResultEvent.model_validate( + { + "messageId": "result-1", + "toolCallId": "call-1", + "content": [{"type": "text", "text": "chart:"}, image], + } + ) + ) + + messages = builder.build().messages + tool_message = next(message for message in messages if message["role"] == "tool") + + assert tool_message["content"] == [{"type": "text", "text": "chart:"}, image] + json.dumps(messages) + replayed = _function_result([*_tool_turn("")[:1], {**tool_message, "toolCallId": "call-1"}]) + assert [item.type for item in replayed.items] == ["text", "uri"] + + +@requires_1_0 +def test_client_history_keeps_tool_result_media() -> None: + """Tool media received by AGUIChatClient goes back out as content parts in the next request's history.""" + update = AGUIEventConverter().convert_event( + { + "type": "TOOL_CALL_RESULT", + "toolCallId": "call-1", + "content": [ + {"type": "text", "text": "chart:"}, + { + "type": "image", + "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}, + }, + ], + } + ) + assert update is not None + history = [ + Message( + role="assistant", contents=[Content.from_function_call(call_id="call-1", name="chart", arguments="{}")] + ), + Message(role="tool", contents=update.contents), + ] + + outgoing = agent_framework_messages_to_agui(history) + + tool_message = next(message for message in outgoing if message["role"] == "tool") + assert tool_message["content"] == [ + {"type": "text", "text": "chart:"}, + {"type": "image", "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}}, + ] + + +def _image_result(call_id: str) -> Content: + return Content.from_function_result( + call_id=call_id, + result=[Content.from_uri(uri="https://example.com/chart.png", media_type="image/png")], + ) + + +def test_dedupe_keeps_an_image_only_result_over_an_empty_placeholder() -> None: + """A completed image-only result replaces an earlier empty result for the same call; it is not dropped.""" + placeholder = Message(role="tool", contents=[Content.from_function_result(call_id="call-1", result="")]) + completed = Message(role="tool", contents=[_image_result("call-1")]) + + deduplicated = _deduplicate_messages([placeholder, completed]) + + assert len(deduplicated) == 1 + items = deduplicated[0].contents[0].items + assert items is not None + assert [item.type for item in items] == ["uri"] + + +@requires_1_0 +def test_approval_snapshot_rebuild_keeps_tool_result_media() -> None: + """Rebuilding tool messages for an approval snapshot keeps an earlier result's media as content parts.""" + rebuilt = _resolved_tool_result_snapshot_messages([Message(role="tool", contents=[_image_result("call-1")])]) + + assert rebuilt["call-1"]["content"] == [ + {"type": "image", "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}} + ] diff --git a/python/packages/ag-ui/tests/ag_ui/test_run_common.py b/python/packages/ag-ui/tests/ag_ui/test_run_common.py index 2e6b8ed56ce..7eb1234d4cc 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_run_common.py +++ b/python/packages/ag-ui/tests/ag_ui/test_run_common.py @@ -621,6 +621,7 @@ def test_mcp_host_payload_has_live_snapshot_and_approval_parity(self): approval_snapshot = _resolved_tool_result_snapshot_messages( [Message(role="tool", contents=[content], message_id="approval-result")] )["mcp-1"] + assert isinstance(approval_event.content, str) assert json.loads(approval_event.content) == host_payload assert approval_snapshot["content"] == "Summary" assert json.loads(approval_snapshot[_AGUI_TOOL_RESULT_HOST_PAYLOAD_KEY]) == host_payload @@ -689,6 +690,7 @@ def test_explicit_display_payload_wins_over_mcp_host_projection(self): assert json.loads(result_event.content) == display_payload # type: ignore[attr-defined] # ty: ignore[unresolved-attribute] assert flow.tool_results[-1]["content"] == "Summary" assert json.loads(flow.tool_results[-1][_AGUI_TOOL_RESULT_HOST_PAYLOAD_KEY]) == display_payload + assert isinstance(approval_event.content, str) assert json.loads(approval_event.content) == display_payload assert approval_snapshot["content"] == "Summary" assert json.loads(approval_snapshot[_AGUI_TOOL_RESULT_HOST_PAYLOAD_KEY]) == display_payload diff --git a/python/packages/ag-ui/tests/ag_ui/test_task_steps_example_agent.py b/python/packages/ag-ui/tests/ag_ui/test_task_steps_example_agent.py new file mode 100644 index 00000000000..4dbf56cbace --- /dev/null +++ b/python/packages/ag-ui/tests/ag_ui/test_task_steps_example_agent.py @@ -0,0 +1,98 @@ +# Copyright (c) Microsoft. All rights reserved. + +"""Tests for the task steps example agent used by Dojo.""" + +from __future__ import annotations + +import json +from collections.abc import AsyncIterator, MutableSequence +from types import SimpleNamespace +from typing import Any + +import pytest +from ag_ui.core import MessagesSnapshotEvent, StateDeltaEvent, StateSnapshotEvent, TextMessageContentEvent +from agent_framework import ChatResponseUpdate, Content, Message + +from agent_framework_ag_ui._utils import _AGUI_PROTOCOL_VERSION +from agent_framework_ag_ui_examples.agents import task_steps_agent as task_steps_module + +_STEPS = [{"description": "Digging hole", "status": "pending"}, {"description": "Planting tree", "status": "pending"}] + + +async def _no_sleep(_: float) -> None: + return None + + +@pytest.fixture +def task_steps_agent(streaming_chat_client_stub: Any, monkeypatch: pytest.MonkeyPatch) -> Any: + """The demo agent over a scripted client: plan the steps, confirm, then summarize.""" + monkeypatch.setattr(task_steps_module, "asyncio", SimpleNamespace(sleep=_no_sleep)) + + async def stream_fn( + messages: MutableSequence[Message], options: dict[str, Any], **kwargs: Any + ) -> AsyncIterator[ChatResponseUpdate]: + del options, kwargs + last = messages[-1] + if "successfully executed" in (last.text or ""): + yield ChatResponseUpdate(contents=[Content.from_text(text="Both steps are done.")]) + elif any(content.type == "function_result" for content in last.contents): + yield ChatResponseUpdate(contents=[Content.from_text(text="I created the plan.")]) + else: + yield ChatResponseUpdate( + contents=[ + Content.from_function_call( + name="generate_task_steps", call_id="call-steps", arguments=json.dumps({"steps": _STEPS}) + ) + ] + ) + + return task_steps_module.task_steps_agent_wrapped(streaming_chat_client_stub(stream_fn)) + + +async def test_predictive_steps_delta_drives_step_execution(task_steps_agent: Any) -> None: + """The predictive /steps delta is read whichever way ag-ui-protocol models patch operations.""" + events = [ + event + async for event in task_steps_agent.run( + {"thread_id": "t1", "run_id": "r1", "messages": [{"id": "u1", "role": "user", "content": "Plant a tree"}]} + ) + ] + + steps_deltas = [ + event + for event in events + if isinstance(event, StateDeltaEvent) and event.model_dump()["delta"][0]["path"] == "/steps" + ] + assert steps_deltas + final_states = [event.snapshot for event in events if isinstance(event, StateSnapshotEvent)] + assert final_states[-1] == {"steps": [{**step, "status": "completed"} for step in _STEPS]} + + +async def test_final_snapshot_accepts_history_with_legacy_binary_attachment(task_steps_agent: Any) -> None: + """The summary MESSAGES_SNAPSHOT replays a legacy binary attachment from the request history.""" + history = [ + { + "id": "u1", + "role": "user", + "content": [ + {"type": "text", "text": "Plan around this photo"}, + {"type": "binary", "mimeType": "image/png", "url": "https://example.com/garden.png"}, + ], + } + ] + + events = [event async for event in task_steps_agent.run({"thread_id": "t1", "run_id": "r1", "messages": history})] + + summary_text = "".join(event.delta for event in events if isinstance(event, TextMessageContentEvent)) + assert "Summary generation error" not in summary_text + final_snapshot = [event for event in events if isinstance(event, MessagesSnapshotEvent)][-1] + dumped = final_snapshot.model_dump(by_alias=True, exclude_none=True)["messages"] + assert dumped[-1]["content"] == "Both steps are done." + attachment = dumped[0]["content"][1] + if _AGUI_PROTOCOL_VERSION is None: # ag-ui-protocol < 1.0 still models the binary part + assert attachment["type"] == "binary" + else: + assert attachment == { + "type": "image", + "source": {"type": "url", "value": "https://example.com/garden.png", "mimeType": "image/png"}, + } diff --git a/python/packages/ag-ui/tests/ag_ui/test_workflow_agent.py b/python/packages/ag-ui/tests/ag_ui/test_workflow_agent.py index 6f5df70d923..8d352ddfc3b 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_workflow_agent.py +++ b/python/packages/ag-ui/tests/ag_ui/test_workflow_agent.py @@ -24,6 +24,7 @@ ) from agent_framework_ag_ui import AgentFrameworkWorkflow +from agent_framework_ag_ui._message_adapters import snapshot_messages_for_wire class _HitlMessageRequestExecutor(Executor): @@ -807,7 +808,10 @@ def build_workflow() -> Workflow: hydrated = await _run(agent, {"thread_id": "content-thread", "messages": [], _SNAPSHOT_SCOPE_INPUT_KEY: "scope"}) replay = next(event for event in hydrated if event.type == "MESSAGES_SNAPSHOT") replay_replies = [message for message in replay.messages if message.role == "user" and message.id != "start"] - assert [message.model_dump(by_alias=True, exclude_none=True) for message in replay_replies] == user_replies + # The wire snapshot carries media in the shape the installed ag-ui-protocol accepts. + assert [message.model_dump(by_alias=True, exclude_none=True) for message in replay_replies] == ( + snapshot_messages_for_wire(user_replies) + ) assert len(handled) == 1 @@ -931,7 +935,7 @@ async def capture( for message in replay.messages if message.role == "user" ] - assert replay_users == [message["content"] for message in user_messages] + assert replay_users == [message["content"] for message in snapshot_messages_for_wire(user_messages)] assert handled == [resume_replies] diff --git a/python/uv.lock b/python/uv.lock index ec75ea0ab68..f3e412a8767 100644 --- a/python/uv.lock +++ b/python/uv.lock @@ -103,14 +103,14 @@ wheels = [ [[package]] name = "ag-ui-protocol" -version = "0.1.22" +version = "1.0.0" source = { registry = "https://pypi.org/simple" } dependencies = [ { name = "pydantic" }, ] -sdist = { url = "https://files.pythonhosted.org/packages/e8/f7/9bf788e7d3608725d022a248a58427040f4f930ab87ddb54bd29ee4d9a51/ag_ui_protocol-0.1.22.tar.gz", hash = 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= "2026-09-17T18:31:18.471Z" }, ] [[package]] @@ -217,7 +217,7 @@ test = [ [package.metadata] requires-dist = [ { name = "ag-ui-a2ui-toolkit", marker = "extra == 'a2ui'", specifier = ">=0.0.4" }, - { name = "ag-ui-protocol", specifier = ">=0.1.19,<0.2" }, + { name = "ag-ui-protocol", specifier = ">=0.1.19,<2" }, { name = "agent-framework-core", editable = "packages/core" }, { name = "fastapi", specifier = ">=0.121.0,<0.142.0" }, { name = "httpx", specifier = ">=0.28.1,<1" }, From 2a34841a1949430b0c854fd78eb4abdc499f81d3 Mon Sep 17 00:00:00 2001 From: Markus Ecker Date: Tue, 20 Oct 2026 14:13:49 +0200 Subject: [PATCH 2/3] Merge branch 'main' into mme/ag-ui-protocol-1.0 Resolve conflicts with the AG-UI changes on main: - pyproject.toml: keep main's agent-framework-core floor (>=1.22.0) with the ag-ui-protocol <2 range. - _message_adapters.py: main's per-occurrence result slots in _deduplicate_messages, judging emptiness with _function_result_has_output so an image-only result still replaces an empty placeholder. - _workflow.py: main's live_owner check, with every RUN_STARTED (including the new factory-run site) built by _build_run_started_event. - tests: main's (call_id, occurrence) snapshot keys and import additions. --- .github/skills/community-projects/SKILL.md | 4 + .github/workflows/codeql-analysis.yml | 6 +- .github/workflows/devflow-fix-ci.yml | 4 +- .github/workflows/dotnet-build-and-test.yml | 73 +- .github/workflows/dotnet-format.yml | 12 +- .github/workflows/dotnet-verify-samples.yml | 2 +- .github/workflows/issue-plan.lock.yml | 32 +- .github/workflows/python-code-quality.yml | 2 +- .../python-dependency-maintenance.yml | 2 +- .../workflows/python-integration-tests.yml | 26 +- .github/workflows/python-merge-tests.yml | 26 +- .../workflows/python-sample-validation.yml | 42 +- .github/workflows/python-test-coverage.yml | 4 +- ...p-skill-templates-and-direct-references.md | 6 +- .../0045-dotnet-unanswered-tool-approvals.md | 123 + .../0045-python-mcp-v2-client-lifecycle.md | 248 + .../specs/004-python-function-calling-loop.md | 4 + dotnet/AGENTS.md | 1 + dotnet/Directory.Packages.props | 8 +- dotnet/nuget/nuget-package.props | 4 +- .../foundry/Agent_Step12_Middleware/README.md | 8 +- .../Program.cs | 1 + .../Agents/Agent_Step11_Middleware/README.md | 7 + .../A2AClientServer/A2AServer/Program.cs | 14 +- .../A2AClientServer/A2AServer/README.md | 30 + dotnet/samples/community-projects.md | 21 +- .../src/Microsoft.Agents.AI.A2A/A2AAgent.cs | 9 +- .../Extensions/A2AAgentTaskExtensions.cs | 11 +- .../Extensions/AgentTaskStatusExtensions.cs | 23 +- .../Memory/FoundryMemoryProvider.cs | 4 +- .../HarnessAgentOptions.cs | 5 + .../A2AEndpointRouteBuilderExtensions.cs | 8 +- .../A2AAgentHandler.cs | 27 +- .../A2AServerRegistrationOptions.cs | 3 + .../AgentEventQueueExtensions.cs | 51 - .../ConfigureAGUIJsonOptions.cs | 19 +- .../AIAgentChatCompletionsProcessor.cs | 30 +- .../Microsoft.Agents.AI.Mem0/Mem0Provider.cs | 4 +- .../src/Microsoft.Agents.AI.Purview/README.md | 3 +- .../ScopedContentProcessor.cs | 28 + .../DockerShellExecutor.cs | 46 +- .../DockerShellExecutorOptions.cs | 12 +- .../ShellExecutor.cs | 6 +- .../DefaultMcpToolHandler.cs | 15 + ...Agents.AI.Workflows.Declarative.Mcp.csproj | 1 + .../DeclarativeWorkflowJsonOptions.cs | 1 + .../Extensions/IWorkflowContextExtensions.cs | 1 + .../Kit/ActionExecutor.cs | 1 + .../Kit/IWorkflowContextExtensions.cs | 5 + .../Kit/RootExecutor.cs | 26 +- .../ObjectModel/ClearAllVariablesExecutor.cs | 2 +- .../ObjectModel/ConditionGroupExecutor.cs | 2 +- .../ObjectModel/ForeachExecutor.cs | 12 +- .../ObjectModel/HttpRequestExecutor.cs | 2 +- .../ObjectModel/InvokeAzureAgentExecutor.cs | 5 +- .../ObjectModel/InvokeFunctionToolExecutor.cs | 75 +- .../ObjectModel/InvokeMcpToolExecutor.cs | 27 +- .../ObjectModel/QuestionExecutor.cs | 6 +- .../RetrieveConversationMessagesExecutor.cs | 5 +- .../PowerFx/WorkflowExpressionEngine.cs | 43 +- .../PowerFx/WorkflowFormulaState.cs | 25 +- .../README.md | 47 + .../AIAgentHostOptions.cs | 9 + .../Execution/FanOutEdgeRunner.cs | 4 + .../Execution/StateManager.cs | 5 +- .../Microsoft.Agents.AI.Workflows/Executor.cs | 38 + .../HandoffToolCallFilteringBehavior.cs | 1 + .../HandoffWorkflowBuilder.cs | 10 + .../InProc/InProcessRunnerContext.cs | 37 +- .../PublicAPI/net10.0/PublicAPI.Unshipped.txt | 2 + .../PublicAPI/net472/PublicAPI.Unshipped.txt | 2 + .../PublicAPI/net8.0/PublicAPI.Unshipped.txt | 2 + .../PublicAPI/net9.0/PublicAPI.Unshipped.txt | 2 + .../netstandard2.0/PublicAPI.Unshipped.txt | 2 + .../Specialized/AIAgentHostExecutor.cs | 92 +- .../Specialized/AIContentExternalHandler.cs | 5 +- .../Specialized/HandoffAgentExecutor.cs | 32 +- .../Specialized/HandoffMessagesFilter.cs | 8 +- .../StatefulExecutor.cs | 90 +- ...textProviderChatClientBuilderExtensions.cs | 14 + ...lNotRequiredFunctionBypassingChatClient.cs | 5 +- .../ApprovalResponseBindingChatClient.cs | 187 +- .../ChatClient/ChatClientAgentOptions.cs | 7 + .../ChatClient/ChatClientBuilderExtensions.cs | 7 + .../ChatClient/ToolApprovalHelpers.cs | 165 + ...ocationDelegatingAgentBuilderExtensions.cs | 9 + .../Harness/FileStore/AgentFileStore.cs | 93 +- .../FileStore/FileSystemAgentFileStore.cs | 89 +- .../FileStore/InMemoryAgentFileStore.cs | 78 +- .../Harness/MultiStepOperationTimeout.cs | 157 + ...lwaysApproveToolApprovalResponseContent.cs | 5 + .../Harness/ToolApproval/ToolApprovalAgent.cs | 85 +- .../ToolApprovalAgentBuilderExtensions.cs | 5 + .../ToolApprovalRequestContentExtensions.cs | 12 + .../PublicAPI/net10.0/PublicAPI.Unshipped.txt | 2 +- .../PublicAPI/net472/PublicAPI.Unshipped.txt | 2 +- .../PublicAPI/net8.0/PublicAPI.Unshipped.txt | 2 +- .../PublicAPI/net9.0/PublicAPI.Unshipped.txt | 2 +- .../netstandard2.0/PublicAPI.Unshipped.txt | 2 +- .../FoundryVersionedAgentCreateTests.cs | 83 +- .../A2AAgentTests.cs | 513 +- .../Extensions/A2AAgentTaskExtensionsTests.cs | 119 +- .../AgentTaskStatusExtensionsTests.cs | 171 +- .../Memory/FoundryMemoryProviderTests.cs | 85 + .../Memory/TestableAIProjectClient.cs | 2 + .../A2AEndpointRouteBuilderExtensionsTests.cs | 166 +- ...AServerServiceCollectionExtensionsTests.cs | 82 + .../ConfigureAGUIJsonOptionsTests.cs | 13 + .../OpenAIChatCompletionsConformanceTests.cs | 185 +- .../Mem0ProviderTests.cs | 76 + .../ScopedContentProcessorTests.cs | 52 + .../DockerShellExecutorTests.cs | 59 + ...equiredFunctionBypassingChatClientTests.cs | 14 +- .../ApprovalResponseBindingChatClientTests.cs | 553 +- .../ChatClientAgent_ApprovalRetryTests.cs | 452 +- .../BackgroundAgentsProviderTests.cs | 12 +- .../FileStore/AgentFileStoreContractTests.cs | 76 + .../FileStore/InMemoryAgentFileStoreTests.cs | 15 + .../Harness/MultiStepOperationTimeoutTests.cs | 52 + .../ToolApproval/ToolApprovalAgentTests.cs | 199 + .../DefaultMcpToolHandlerTests.cs | 53 + .../DeclarativeWorkflowTest.cs | 100 +- .../Kit/RootExecutorTests.cs | 444 +- ....AI.Workflows.Declarative.UnitTests.csproj | 3 + .../ClearAllVariablesExecutorTest.cs | 21 + .../ObjectModel/ConditionGroupExecutorTest.cs | 74 + .../ObjectModel/ForeachExecutorTest.cs | 114 + .../ObjectModel/HttpRequestExecutorTest.cs | 21 + .../InvokeAzureAgentExecutorTest.cs | 45 + .../InvokeFunctionToolExecutorTest.cs | 447 + .../ObjectModel/InvokeMcpToolExecutorTest.cs | 195 +- .../ObjectModel/QuestionExecutorTest.cs | 33 + ...etrieveConversationMessagesExecutorTest.cs | 38 + .../ObjectModel/SetVariableExecutorTest.cs | 34 + .../PowerFx/WorkflowExpressionEngineTests.cs | 146 + .../PowerFx/WorkflowFormulaStateTests.cs | 78 + .../Workflows/Condition.cs | 8 +- .../Workflows/ConditionElse.cs | 4 +- .../Workflows/LoopBreak.cs | 15 +- .../Workflows/LoopContinue.cs | 15 +- .../Workflows/LoopEach.cs | 13 +- .../AIAgentHostExecutorTests.cs | 183 +- .../CheckpointResumeTests.cs | 159 + .../EdgeRunnerTests.cs | 79 + .../GroupChatOrchestrationTests.cs | 75 +- .../HandoffMessageFilterTests.cs | 110 + .../HandoffOrchestrationTests.cs | 308 +- .../TestRequestAgent.cs | 5 + .../TestRunContext.cs | 4 +- .../WorkflowExecutorStateTests.cs | 300 + .../agent-framework-py-release/SKILL.md | 6 +- python/CHANGELOG.md | 47 +- python/PACKAGE_STATUS.md | 4 - .../a2a/agent_framework_a2a/_a2a_executor.py | 100 +- python/packages/a2a/pyproject.toml | 4 +- .../packages/a2a/tests/test_a2a_executor.py | 152 + python/packages/ag-ui/AGENTS.md | 40 +- python/packages/ag-ui/README.md | 109 +- .../ag-ui/agent_framework_ag_ui/__init__.py | 3 +- .../ag-ui/agent_framework_ag_ui/_agent_run.py | 212 +- .../ag-ui/agent_framework_ag_ui/_endpoint.py | 119 +- .../_message_adapters.py | 109 +- .../agent_framework_ag_ui/_run_common.py | 16 +- .../ag-ui/agent_framework_ag_ui/_utils.py | 5 +- .../ag-ui/agent_framework_ag_ui/_workflow.py | 97 +- .../agent_framework_ag_ui/_workflow_run.py | 6 +- .../agent_framework_ag_ui_examples/README.md | 51 +- .../server/api/backend_tool_rendering.py | 3 + .../server/main.py | 13 +- .../packages/ag-ui/getting_started/README.md | 6 +- .../packages/ag-ui/getting_started/server.py | 17 +- python/packages/ag-ui/pyproject.toml | 4 +- python/packages/ag-ui/tests/ag_ui/conftest.py | 1 + .../ag-ui/tests/ag_ui/test_endpoint.py | 1562 +++- .../ag-ui/tests/ag_ui/test_handoff_replay.py | 8 +- .../ag-ui/tests/ag_ui/test_http_round_trip.py | 4 +- .../tests/ag_ui/test_message_adapters.py | 137 + .../ag-ui/tests/ag_ui/test_multi_turn.py | 2 +- .../ag-ui/tests/ag_ui/test_protocol_1_0.py | 2 +- .../ag-ui/tests/ag_ui/test_public_exports.py | 1 + python/packages/ag-ui/tests/ag_ui/test_run.py | 284 +- .../ag-ui/tests/ag_ui/test_run_common.py | 10 +- .../ag-ui/tests/ag_ui/test_workflow_agent.py | 236 + .../agent_framework_anthropic/_chat_client.py | 2 +- python/packages/anthropic/pyproject.toml | 4 +- .../anthropic/tests/test_anthropic_client.py | 30 + .../packages/azure-ai-search/pyproject.toml | 2 +- .../azure-contentunderstanding/pyproject.toml | 2 +- python/packages/azure-cosmos-memory/AGENTS.md | 6 +- .../_context_provider.py | 8 + .../azure-cosmos-memory/pyproject.toml | 2 +- .../tests/test_context_provider.py | 19 + python/packages/azure-cosmos/pyproject.toml | 2 +- .../packages/azure-documentdb/pyproject.toml | 2 +- .../agent_framework_bedrock/_chat_client.py | 6 +- .../_embedding_client.py | 14 +- python/packages/bedrock/pyproject.toml | 4 +- .../bedrock/test_bedrock_embedding_client.py | 73 +- .../bedrock/tests/test_bedrock_client.py | 33 + python/packages/chatkit/pyproject.toml | 2 +- python/packages/claude/pyproject.toml | 4 +- python/packages/copilotstudio/pyproject.toml | 4 +- python/packages/core/AGENTS.md | 34 +- .../packages/core/agent_framework/_agents.py | 92 +- .../core/agent_framework/_feature_stage.py | 1 - .../core/agent_framework/_filesystem.py | 29 + .../core/agent_framework/_harness/_loop.py | 7 +- .../core/agent_framework/_harness/_memory.py | 28 +- .../core/agent_framework/_harness/_todo.py | 19 +- .../_harness/_tool_approval.py | 30 +- python/packages/core/agent_framework/_mcp.py | 1557 ++-- .../packages/core/agent_framework/_skills.py | 154 +- .../packages/core/agent_framework/_types.py | 64 +- .../_workflows/_agent_executor.py | 67 +- .../agent_framework/_workflows/_functional.py | 689 +- .../_workflows/_typing_utils.py | 15 + .../core/agent_framework/ag_ui/__init__.py | 2 + .../core/agent_framework/ag_ui/__init__.pyi | 2 + .../packages/core/agent_framework/security.py | 16 +- python/packages/core/pyproject.toml | 59 +- .../packages/core/tests/core/test_agents.py | 65 + .../core/tests/core/test_filesystem.py | 39 + .../core/tests/core/test_harness_loop.py | 49 + .../core/tests/core/test_harness_memory.py | 11 +- python/packages/core/tests/core/test_mcp.py | 7631 +++++++++-------- .../core/tests/core/test_mcp_http_auth.py | 67 +- .../core/tests/core/test_mcp_observability.py | 57 +- .../core/tests/core/test_mcp_skills.py | 311 +- .../tests/core/test_optional_dependencies.py | 101 +- python/packages/core/tests/core/test_types.py | 99 + python/packages/core/tests/test_security.py | 72 +- .../tests/workflow/test_agent_executor.py | 124 + .../workflow/test_functional_workflow.py | 1486 +++- .../core/tests/workflow/test_typing_utils.py | 33 + .../core/tests/workflow/test_validation.py | 18 +- .../_workflows/_declarative_base.py | 97 +- .../_workflows/_executors_basic.py | 3 +- .../_workflows/_executors_mcp.py | 6 +- .../_workflows/_mcp_handler.py | 34 +- .../_workflows/_powerfx_functions.py | 147 + .../_workflows/_state.py | 12 +- python/packages/declarative/pyproject.toml | 3 +- .../tests/test_default_mcp_tool_handler.py | 29 +- .../declarative/tests/test_graph_coverage.py | 28 + .../declarative/tests/test_graph_executors.py | 2 +- .../tests/test_invoke_mcp_tool_executor.py | 2 +- .../tests/test_powerfx_functions.py | 158 + .../tests/test_workflow_factory.py | 33 + .../declarative/tests/test_workflow_state.py | 64 + .../devui/agent_framework_devui/_discovery.py | 39 +- .../devui/agent_framework_devui/_executor.py | 64 - .../packages/devui/frontend/package-lock.json | 40 +- python/packages/devui/frontend/package.json | 2 +- python/packages/devui/frontend/yarn.lock | 42 +- python/packages/devui/pyproject.toml | 6 +- .../devui/tests/devui/test_discovery.py | 21 + python/packages/duckdb/pyproject.toml | 2 +- python/packages/foundry/pyproject.toml | 6 +- .../_responses.py | 6 +- .../_toolbox.py | 18 +- .../packages/foundry_hosting/pyproject.toml | 7 +- .../foundry_hosting/tests/test_responses.py | 19 +- .../foundry_hosting/tests/test_toolbox.py | 44 +- python/packages/foundry_local/pyproject.toml | 2 +- python/packages/gemini/pyproject.toml | 4 +- python/packages/github_copilot/pyproject.toml | 4 +- python/packages/hosting-a2a/pyproject.toml | 6 +- .../_agent_tool.py | 24 +- .../_conversion.py | 20 +- .../_workflow_tool.py | 35 +- python/packages/hosting-mcp/pyproject.toml | 6 +- .../tests/hosting_mcp/test_agent_tool.py | 121 +- .../tests/hosting_mcp/test_conversion.py | 9 +- .../tests/hosting_mcp/test_integration.py | 16 +- .../tests/hosting_mcp/test_workflow_tool.py | 87 +- .../packages/hosting-responses/pyproject.toml | 6 +- .../packages/hosting-telegram/pyproject.toml | 4 +- python/packages/hosting/pyproject.toml | 2 +- python/packages/hyperlight/pyproject.toml | 2 +- python/packages/lab/pyproject.toml | 2 +- .../_sliding_window.py | 10 +- .../lab/tau2/tests/test_sliding_window.py | 36 + python/packages/lab/uv.lock | 460 +- python/packages/mem0/pyproject.toml | 2 +- python/packages/mistral/pyproject.toml | 4 +- python/packages/mongodb/pyproject.toml | 2 +- .../_execute_code_tool.py | 107 +- python/packages/monty/pyproject.toml | 2 +- .../monty/tests/monty/test_monty_codeact.py | 307 +- .../agent_framework_ollama/_chat_client.py | 29 +- python/packages/ollama/pyproject.toml | 4 +- .../ollama/tests/test_ollama_chat_client.py | 87 +- python/packages/openai/pyproject.toml | 4 +- python/packages/oracle/pyproject.toml | 2 +- .../_orchestration_request_info.py | 7 + .../_sequential.py | 16 +- python/packages/orchestrations/pyproject.toml | 2 +- .../tests/test_orchestration_request_info.py | 32 + .../orchestrations/tests/test_sequential.py | 97 + python/packages/postgres/pyproject.toml | 2 +- python/packages/purview/README.md | 2 +- .../agent_framework_purview/_processor.py | 9 +- python/packages/purview/pyproject.toml | 2 +- .../purview/tests/purview/test_processor.py | 21 + python/packages/qdrant/pyproject.toml | 2 +- python/packages/redis/pyproject.toml | 2 +- python/packages/sql-server/pyproject.toml | 2 +- python/packages/tools/README.md | 13 + .../agent_framework_tools/shell/_docker.py | 188 +- python/packages/tools/pyproject.toml | 2 +- .../tools/tests/test_docker_shell_tool.py | 272 +- python/packages/typesafe/pyproject.toml | 2 +- python/pyproject.toml | 12 +- .../claw_step04_production_ready/README.md | 2 +- python/samples/02-agents/mcp/README.md | 22 +- .../02-agents/mcp/mcp_long_running_task.py | 181 - .../mcp/mcp_progressive_disclosure.py | 26 +- .../02-agents/mcp/mcp_sampling_approval.py | 78 - python/samples/02-agents/middleware/README.md | 2 +- .../middleware/atr_validation_middleware.py | 69 +- .../samples/02-agents/observability/README.md | 2 +- ...foundry_chat_client_with_toolbox_skills.py | 85 +- .../skills/mcp_based_skill/mcp_based_skill.py | 11 +- .../invoke_foundry_toolbox_mcp/main.py | 2 +- python/samples/04-hosting/mcp/README.md | 30 +- python/samples/04-hosting/mcp/agent_app.py | 29 +- python/samples/04-hosting/mcp/manual_app.py | 52 +- .../mcp/{fastmcp_app.py => mcpserver_app.py} | 38 +- python/samples/04-hosting/mcp/pyproject.toml | 2 +- python/samples/04-hosting/mcp/session_app.py | 43 +- python/samples/04-hosting/mcp/workflow_app.py | 25 +- .../ag_ui_workflow_handoff/backend/server.py | 3 + python/samples/community-projects.md | 1 - python/uv.lock | 163 +- 334 files changed, 21717 insertions(+), 7463 deletions(-) create mode 100644 docs/decisions/0045-dotnet-unanswered-tool-approvals.md create mode 100644 docs/decisions/0045-python-mcp-v2-client-lifecycle.md delete mode 100644 dotnet/src/Microsoft.Agents.AI.Hosting.A2A/AgentEventQueueExtensions.cs create mode 100644 dotnet/src/Microsoft.Agents.AI/ChatClient/ToolApprovalHelpers.cs create mode 100644 dotnet/src/Microsoft.Agents.AI/Harness/MultiStepOperationTimeout.cs create mode 100644 dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/MultiStepOperationTimeoutTests.cs create mode 100644 dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/WorkflowExecutorStateTests.cs delete mode 100644 python/samples/02-agents/mcp/mcp_long_running_task.py delete mode 100644 python/samples/02-agents/mcp/mcp_sampling_approval.py rename python/samples/04-hosting/mcp/{fastmcp_app.py => mcpserver_app.py} (72%) diff --git a/.github/skills/community-projects/SKILL.md b/.github/skills/community-projects/SKILL.md index 7d1dd2e97fb..d4ea124e165 100644 --- a/.github/skills/community-projects/SKILL.md +++ b/.github/skills/community-projects/SKILL.md @@ -92,6 +92,10 @@ Do not list: should document that setup on their own site. - Observability providers that only accept standard OpenTelemetry or OTLP configuration. Those providers should document that setup on their own site. +- MCP servers or gateways that only require Agent Framework's standard MCP + client or tool configuration. MCP compatibility is protocol-level + interoperability, not an Agent Framework-specific integration, so those + projects should document that setup on their own site. - Official Microsoft-owned integrations. - Unpublished, planned, proposed, or otherwise unavailable projects. - Projects that direct support or issue reports to a Microsoft repository, diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml index c3a81b4fb0e..002c9259db7 100644 --- a/.github/workflows/codeql-analysis.yml +++ b/.github/workflows/codeql-analysis.yml @@ -38,7 +38,7 @@ jobs: # Initializes the CodeQL tools for scanning. - name: Initialize CodeQL - uses: github/codeql-action/init@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2 + uses: github/codeql-action/init@24c54180a607b1449ed407dd24f251e4e9147c8d # v4.38.3 with: languages: ${{ matrix.language }} # If you wish to specify custom queries, you can do so here or in a config file. @@ -51,7 +51,7 @@ jobs: # Autobuild attempts to build any compiled languages (C/C++, C#, Go, or Java). # If this step fails, then you should remove it and run the build manually (see below) - name: Autobuild - uses: github/codeql-action/autobuild@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2 + uses: github/codeql-action/autobuild@24c54180a607b1449ed407dd24f251e4e9147c8d # v4.38.3 # ℹ️ Command-line programs to run using the OS shell. # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun @@ -64,6 +64,6 @@ jobs: # ./location_of_script_within_repo/buildscript.sh - name: Perform CodeQL Analysis - uses: github/codeql-action/analyze@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2 + uses: github/codeql-action/analyze@24c54180a607b1449ed407dd24f251e4e9147c8d # v4.38.3 with: category: "/language:${{matrix.language}}" diff --git a/.github/workflows/devflow-fix-ci.yml b/.github/workflows/devflow-fix-ci.yml index acc9bafd75b..a06f8f8ec87 100644 --- a/.github/workflows/devflow-fix-ci.yml +++ b/.github/workflows/devflow-fix-ci.yml @@ -283,7 +283,7 @@ jobs: - name: Retain bounded candidate and notice artifacts if: ${{ steps.run.outcome == 'success' }} id: artifact - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: repair-${{ github.run_id }} path: | @@ -412,7 +412,7 @@ jobs: - name: Install trusted controller dependencies run: uv sync --frozen --directory "$DEVFLOW_PATH" - name: Download immutable candidate from this run - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: artifact-ids: ${{ needs.repair.outputs.artifact_id }} path: ${{ runner.temp }}/publication-input diff --git a/.github/workflows/dotnet-build-and-test.yml b/.github/workflows/dotnet-build-and-test.yml index 6d92e4b0a8f..9139570145e 100644 --- a/.github/workflows/dotnet-build-and-test.yml +++ b/.github/workflows/dotnet-build-and-test.yml @@ -47,6 +47,7 @@ jobs: filters: | dotnet: - 'dotnet/**' + - '.github/workflows/dotnet-build-and-test.yml' cosmosdb: - 'dotnet/src/Microsoft.Agents.AI.CosmosNoSql/**' azurestorage: @@ -170,23 +171,21 @@ jobs: popd rm -rf "$TEMP_DIR" - # Build src+tests only (no samples) for a single TFM and run tests. + # Unit and integration jobs share steps but run with separate permissions and environments. dotnet-test: needs: paths-filter if: needs.paths-filter.outputs.dotnetChanges == 'true' permissions: contents: read - id-token: "write" strategy: fail-fast: false matrix: include: - - { targetFramework: "net10.0", os: "ubuntu-latest", configuration: Release, integration-tests: true, environment: "integration" } - - { targetFramework: "net472", os: "windows-latest", configuration: Release, integration-tests: true, environment: "integration" } + - { targetFramework: "net10.0", os: "ubuntu-latest", configuration: Release, integration-tests: false } + - { targetFramework: "net472", os: "windows-latest", configuration: Release, integration-tests: false } runs-on: ${{ matrix.os }} - environment: ${{ matrix.environment }} - steps: + steps: &dotnet-test-steps - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1 with: persist-credentials: false @@ -201,9 +200,9 @@ jobs: - name: Free runner disk space uses: ./.github/actions/free-runner-disk-space - # Start Cosmos DB Emulator for all integration tests and only for unit tests when CosmosDB changes happened) + # Branch and merge-queue unit checks always use the emulator; direct PR checks are path-selected. - name: Start Azure Cosmos DB Emulator - if: ${{ runner.os == 'Windows' && (needs.paths-filter.outputs.cosmosDbChanges == 'true' || (github.event_name != 'pull_request' && matrix.integration-tests)) }} + if: ${{ runner.os == 'Windows' && (needs.paths-filter.outputs.cosmosDbChanges == 'true' || matrix.integration-tests || github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || github.event_name == 'merge_group') }} shell: pwsh run: | $ErrorActionPreference = "Stop" @@ -329,7 +328,7 @@ jobs: } - name: Start Azurite Blob service - if: ${{ runner.os == 'Linux' && (needs.paths-filter.outputs.azureStorageChanges == 'true' || (github.event_name != 'pull_request' && matrix.integration-tests)) }} + if: ${{ runner.os == 'Linux' && (needs.paths-filter.outputs.azureStorageChanges == 'true' || matrix.integration-tests || github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || github.event_name == 'merge_group') }} shell: bash run: | docker run --detach --rm \ @@ -386,6 +385,7 @@ jobs: -OutputPath dotnet/filtered-integration.slnx - name: Run Unit Tests + if: ${{ !matrix.integration-tests }} shell: pwsh working-directory: dotnet run: | @@ -417,7 +417,7 @@ jobs: run: echo "github.event_name:${{ github.event_name }} matrix.integration-tests:${{ matrix.integration-tests }} github.event.action:${{ github.event.action }} github.event.pull_request.merged:${{ github.event.pull_request.merged }}" - name: Azure CLI Login - if: github.event_name != 'pull_request' && matrix.integration-tests + if: matrix.integration-tests uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0 with: client-id: ${{ secrets.AZURE_CLIENT_ID }} @@ -427,7 +427,7 @@ jobs: - name: Run Integration Tests shell: pwsh working-directory: dotnet - if: github.event_name != 'pull_request' && matrix.integration-tests + if: matrix.integration-tests run: | dotnet test --solution ./filtered-integration.slnx ` -f ${{ matrix.targetFramework }} ` @@ -465,7 +465,7 @@ jobs: # Generate test reports and check coverage - name: Generate test reports - if: matrix.targetFramework == env.COVERAGE_FRAMEWORK + if: ${{ !matrix.integration-tests && matrix.targetFramework == env.COVERAGE_FRAMEWORK }} uses: danielpalme/ReportGenerator-GitHub-Action@d3ebf1f760f7d8ab92cc44d9bcfee7ad73722a31 # 5.5.11 with: reports: "./TestResults/Coverage/**/*.cobertura.xml" @@ -473,20 +473,20 @@ jobs: reporttypes: "HtmlInline;JsonSummary;Cobertura" - name: Upload coverage report artifact - if: matrix.targetFramework == env.COVERAGE_FRAMEWORK - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + if: ${{ !matrix.integration-tests && matrix.targetFramework == env.COVERAGE_FRAMEWORK }} + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: CoverageReport-${{ matrix.os }}-${{ matrix.targetFramework }}-${{ matrix.configuration }} # Artifact name path: ./TestResults/Reports # Directory containing files to upload - name: Check coverage - if: matrix.targetFramework == env.COVERAGE_FRAMEWORK + if: ${{ !matrix.integration-tests && matrix.targetFramework == env.COVERAGE_FRAMEWORK }} shell: pwsh run: ./dotnet/eng/scripts/dotnet-check-coverage.ps1 -JsonReportPath "TestResults/Reports/Summary.json" -CoverageThreshold $env:COVERAGE_THRESHOLD - name: Upload integration test results - if: always() && github.event_name != 'pull_request' && matrix.integration-tests - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + if: always() && matrix.integration-tests + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: dotnet-test-results-${{ matrix.targetFramework }}-${{ matrix.os }} path: | @@ -494,6 +494,23 @@ jobs: IntegrationTestResults/**/*.junit.xml if-no-files-found: ignore + # Repository PRs and reviewer-approved merge groups can run integration checks before merging. + dotnet-integration-test: + needs: paths-filter + if: needs.paths-filter.outputs.dotnetChanges == 'true' && (github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || github.event_name == 'merge_group' || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository && github.actor != 'dependabot[bot]')) + permissions: + contents: read + id-token: "write" + strategy: + fail-fast: false + matrix: + include: + - { targetFramework: "net10.0", os: "ubuntu-latest", configuration: Release, integration-tests: true } + - { targetFramework: "net472", os: "windows-latest", configuration: Release, integration-tests: true } + runs-on: ${{ matrix.os }} + environment: integration + steps: *dotnet-test-steps + dotnet-upload-coverage: needs: [paths-filter, dotnet-test] if: needs.paths-filter.outputs.dotnetChanges == 'true' && github.event_name != 'merge_group' && ((github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository && github.actor != 'dependabot[bot]') || (github.event_name != 'pull_request' && github.ref_name == github.event.repository.default_branch)) @@ -505,7 +522,7 @@ jobs: pull-requests: read steps: - name: Download coverage report artifact - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: name: CoverageReport-ubuntu-latest-${{ env.COVERAGE_FRAMEWORK }}-Release path: ./TestResults/Reports @@ -525,12 +542,17 @@ jobs: # gated on paths-filter.outputs.foundryHostingChanges so unrelated edits skip the work. dotnet-foundry-hosted-it: needs: paths-filter - if: github.event_name != 'pull_request' && needs.paths-filter.outputs.foundryHostingChanges == 'true' + if: needs.paths-filter.outputs.foundryHostingChanges == 'true' && (github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || github.event_name == 'merge_group' || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository && github.actor != 'dependabot[bot]')) permissions: contents: read id-token: "write" runs-on: ubuntu-latest environment: integration + # Scenario agents share @latest endpoints across PRs and branch runs. + concurrency: + group: dotnet-foundry-hosted-integration + cancel-in-progress: false + queue: max env: configuration: Release steps: @@ -611,7 +633,7 @@ jobs: dotnet-build-and-test-check: if: always() runs-on: ubuntu-latest - needs: [dotnet-build, dotnet-test, dotnet-foundry-hosted-it] + needs: [dotnet-build, dotnet-test, dotnet-integration-test, dotnet-foundry-hosted-it] steps: - name: Get Date shell: bash @@ -655,10 +677,9 @@ jobs: name: Integration Test Report if: > always() && - github.event_name != 'pull_request' && - (contains(join(needs.*.result, ','), 'success') || - contains(join(needs.*.result, ','), 'failure')) - needs: [dotnet-test] + (needs.dotnet-integration-test.result == 'success' || + needs.dotnet-integration-test.result == 'failure') + needs: [dotnet-integration-test] runs-on: ubuntu-latest defaults: run: @@ -676,7 +697,7 @@ jobs: python-version: "3.13" os: ${{ runner.os }} - name: Download all test results from current run - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: pattern: dotnet-test-results-* path: dotnet-test-results/ @@ -704,7 +725,7 @@ jobs: key: dotnet-integration-report-history-${{ github.run_id }} - name: Upload trend report if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: dotnet-integration-test-report path: | diff --git a/.github/workflows/dotnet-format.yml b/.github/workflows/dotnet-format.yml index 22a637c8671..2ec98fe60f4 100644 --- a/.github/workflows/dotnet-format.yml +++ b/.github/workflows/dotnet-format.yml @@ -42,7 +42,17 @@ jobs: - name: Get changed files id: changed-files if: github.event_name == 'pull_request' - uses: jitterbit/get-changed-files@b17fbb00bdc0c0f63fcf166580804b4d2cdc2a42 # v1 + shell: bash + env: + BASE_SHA: ${{ github.event.pull_request.base.sha }} + run: | + diff=$(git diff --name-only --diff-filter=AM "$BASE_SHA..HEAD") + if [[ "$diff" == *[[:blank:]]* || "$diff" == *'"'* ]]; then + echo "Changed paths cannot be safely space-delimited; falling back to the whole solution." >&2 + exit 1 + fi + diff=$(printf '%s' "$diff" | tr '\n' ' ') + echo "added_modified=$diff" >> "$GITHUB_OUTPUT" continue-on-error: true - name: No C# files changed diff --git a/.github/workflows/dotnet-verify-samples.yml b/.github/workflows/dotnet-verify-samples.yml index 2d4546d8dbe..1f1b40e9f4a 100644 --- a/.github/workflows/dotnet-verify-samples.yml +++ b/.github/workflows/dotnet-verify-samples.yml @@ -123,7 +123,7 @@ jobs: - name: Upload results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: verify-samples-results path: | diff --git a/.github/workflows/issue-plan.lock.yml b/.github/workflows/issue-plan.lock.yml index 554a1c4f9fb..496553fa862 100644 --- a/.github/workflows/issue-plan.lock.yml +++ b/.github/workflows/issue-plan.lock.yml @@ -205,7 +205,7 @@ jobs: - name: Publish daily AIC scan observations if: always() && env.GH_AW_MAX_DAILY_AI_CREDITS != '' continue-on-error: true - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: aic-usage-scan-v2 path: /tmp/gh-aw/agentic-workflow-usage-scan-v2.jsonl @@ -399,7 +399,7 @@ jobs: bash "${RUNNER_TEMP}/gh-aw/actions/print_prompt_summary.sh" - name: Upload info artifact if: success() || failure() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: info path: /tmp/gh-aw/aw_info.json @@ -410,7 +410,7 @@ jobs: cp -a "${RUNNER_TEMP}/gh-aw/aw-prompts/." /tmp/gh-aw/aw-prompts/ - name: Upload activation artifact if: success() || failure() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: activation include-hidden-files: true @@ -525,7 +525,7 @@ jobs: env: GH_TOKEN: ${{ github.token }} - name: Download activation artifact - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: name: activation path: /tmp/gh-aw @@ -1177,7 +1177,7 @@ jobs: - name: Upload agent output fallback artifact if: always() continue-on-error: true - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: agent-output-fallback path: | @@ -1194,7 +1194,7 @@ jobs: - name: Upload agent artifacts if: always() continue-on-error: true - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: agent path: | @@ -1269,7 +1269,7 @@ jobs: - name: Download agent output artifact id: download-agent-output continue-on-error: true - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: pattern: "{agent,agent-output-fallback}" merge-multiple: true @@ -1286,7 +1286,7 @@ jobs: - name: Download detection artifact id: download-detection-artifact continue-on-error: true - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: name: detection path: /tmp/gh-aw/threat-detection/ @@ -1294,7 +1294,7 @@ jobs: id: download-safe-outputs-manifest if: always() continue-on-error: true - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: pattern: safe-outputs-items merge-multiple: true @@ -1455,7 +1455,7 @@ jobs: id: upload-usage-artifact if: always() continue-on-error: true - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: usage path: | @@ -1488,7 +1488,7 @@ jobs: id: upload-usage-artifact-retry if: always() && steps.upload-usage-artifact.outcome == 'failure' continue-on-error: true - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: usage path: | @@ -1550,14 +1550,14 @@ jobs: GH_AW_INFO_ENGINE_ID: "copilot" - name: Download activation artifact continue-on-error: true - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: name: activation path: /tmp/gh-aw - name: Download agent output artifact id: download-agent-output continue-on-error: true - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: pattern: "{agent,agent-output-fallback}" merge-multiple: true @@ -1780,7 +1780,7 @@ jobs: await main(); - name: Upload threat detection artifact if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: detection path: | @@ -1906,7 +1906,7 @@ jobs: - name: Download agent output artifact id: download-agent-output continue-on-error: true - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: pattern: "{agent,agent-output-fallback}" merge-multiple: true @@ -1950,7 +1950,7 @@ jobs: await main(); - name: Upload Safe Outputs Items if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: safe-outputs-items path: | diff --git a/.github/workflows/python-code-quality.yml b/.github/workflows/python-code-quality.yml index a900214ef55..bc6afaf4bf7 100644 --- a/.github/workflows/python-code-quality.yml +++ b/.github/workflows/python-code-quality.yml @@ -154,7 +154,7 @@ jobs: working-directory: ./python steps: - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1 - - uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0 + - uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0 with: version-file: "python/pyproject.toml" - name: Install isolated declarative test environment diff --git a/.github/workflows/python-dependency-maintenance.yml b/.github/workflows/python-dependency-maintenance.yml index 0bcd7f85ac1..5bf5286cf37 100644 --- a/.github/workflows/python-dependency-maintenance.yml +++ b/.github/workflows/python-dependency-maintenance.yml @@ -78,7 +78,7 @@ jobs: - name: Upload dependency validation reports if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: dependency-maintenance-results path: | diff --git a/.github/workflows/python-integration-tests.yml b/.github/workflows/python-integration-tests.yml index 1b3b4015731..97bcb8cb20f 100644 --- a/.github/workflows/python-integration-tests.yml +++ b/.github/workflows/python-integration-tests.yml @@ -78,7 +78,7 @@ jobs: run: uv run --directory packages/qdrant poe test-integration --junitxml=${{ github.workspace }}/python/pytest.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-qdrant path: ./python/pytest.xml @@ -127,7 +127,7 @@ jobs: title: MongoDB integration test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-mongodb path: ./python/pytest-mongodb.xml @@ -197,7 +197,7 @@ jobs: --junitxml=pytest.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-openai path: ./python/pytest.xml @@ -251,7 +251,7 @@ jobs: --junitxml=pytest.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-azure-openai path: ./python/pytest.xml @@ -346,7 +346,7 @@ jobs: --junitxml=pytest.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-misc path: ./python/pytest.xml @@ -423,7 +423,7 @@ jobs: --junitxml=pytest.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-foundry path: ./python/pytest.xml @@ -473,7 +473,7 @@ jobs: --junitxml=pytest.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-foundry-hosting path: ./python/pytest.xml @@ -525,7 +525,7 @@ jobs: run: uv run --directory packages/azure-cosmos poe integration-tests -n logical --dist worksteal --timeout=120 --session-timeout=900 --timeout_method thread --retries 2 --retry-delay 5 --junitxml=${{ github.workspace }}/python/pytest.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-cosmos path: ./python/pytest.xml @@ -567,7 +567,7 @@ jobs: --junitxml=pytest.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-github-copilot path: ./python/pytest.xml @@ -617,7 +617,7 @@ jobs: --junitxml=pytest-postgres.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-postgres path: ./python/pytest-postgres.xml @@ -660,7 +660,7 @@ jobs: -m integration --timeout=120 --junitxml=pytest-redis.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-redis path: ./python/pytest-redis.xml @@ -702,7 +702,7 @@ jobs: python-version: ${{ env.UV_PYTHON }} os: ${{ runner.os }} - name: Download all test results from current run - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: pattern: test-results-* path: test-results/ @@ -730,7 +730,7 @@ jobs: key: integration-report-history-integration-${{ github.run_id }} - name: Upload unified trend report if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: integration-test-report path: | diff --git a/.github/workflows/python-merge-tests.yml b/.github/workflows/python-merge-tests.yml index 7872a72bae5..3b747555f66 100644 --- a/.github/workflows/python-merge-tests.yml +++ b/.github/workflows/python-merge-tests.yml @@ -187,7 +187,7 @@ jobs: run: uv run --directory packages/qdrant poe test-integration --junitxml=${{ github.workspace }}/python/pytest.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-qdrant path: ./python/pytest.xml @@ -241,7 +241,7 @@ jobs: title: MongoDB integration test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-mongodb path: ./python/pytest-mongodb.xml @@ -340,7 +340,7 @@ jobs: title: OpenAI integration test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-openai path: ./python/pytest.xml @@ -410,7 +410,7 @@ jobs: title: Azure OpenAI integration test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-azure-openai path: ./python/pytest.xml @@ -538,7 +538,7 @@ jobs: title: Misc integration test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-misc path: ./python/pytest.xml @@ -605,7 +605,7 @@ jobs: title: Test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-foundry path: ./python/pytest.xml @@ -666,7 +666,7 @@ jobs: title: Foundry Hosting integration test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-foundry-hosting path: ./python/pytest.xml @@ -733,7 +733,7 @@ jobs: title: Cosmos integration test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-cosmos path: ./python/pytest.xml @@ -788,7 +788,7 @@ jobs: title: GitHub Copilot integration test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-github-copilot path: ./python/pytest.xml @@ -853,7 +853,7 @@ jobs: title: PostgreSQL integration test results - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-postgres path: ./python/pytest-postgres.xml @@ -900,7 +900,7 @@ jobs: -m integration --timeout=120 --junitxml=pytest-redis.xml - name: Upload test results if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: test-results-redis path: ./python/pytest-redis.xml @@ -939,7 +939,7 @@ jobs: python-version: ${{ env.UV_PYTHON }} os: ${{ runner.os }} - name: Download all test results from current run - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: pattern: test-results-* path: test-results/ @@ -967,7 +967,7 @@ jobs: key: integration-report-history-merge-${{ github.run_id }} - name: Upload unified trend report if: always() - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: integration-test-report path: | diff --git a/.github/workflows/python-sample-validation.yml b/.github/workflows/python-sample-validation.yml index a54b3c7ba3d..c3915c3a7da 100644 --- a/.github/workflows/python-sample-validation.yml +++ b/.github/workflows/python-sample-validation.yml @@ -53,7 +53,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-01-get-started @@ -120,7 +120,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents @@ -167,7 +167,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-harness @@ -209,7 +209,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-tools @@ -255,7 +255,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-openai @@ -299,7 +299,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-azure @@ -341,7 +341,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-anthropic @@ -375,7 +375,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-github-copilot @@ -411,7 +411,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-amazon @@ -447,7 +447,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-ollama @@ -493,7 +493,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-foundry @@ -539,7 +539,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-copilotstudio @@ -572,7 +572,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-02-agents-custom @@ -614,7 +614,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-03-workflows @@ -660,7 +660,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-04-hosting-foundry-hosted-agents @@ -699,7 +699,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-04-hosting-other @@ -746,7 +746,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-05-end-to-end @@ -803,7 +803,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-autogen-migration @@ -872,7 +872,7 @@ jobs: uses: ./.github/actions/sample-validation-save-playbooks - name: Upload validation report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-report-semantic-kernel-migration @@ -906,7 +906,7 @@ jobs: - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1 - name: Download all validation reports - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: pattern: validation-report-* path: reports/ @@ -938,7 +938,7 @@ jobs: key: validation-history-${{ github.run_id }} - name: Upload trend report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 if: always() with: name: validation-trend-report diff --git a/.github/workflows/python-test-coverage.yml b/.github/workflows/python-test-coverage.yml index 5b2dcc31ebd..a27dcbc3de2 100644 --- a/.github/workflows/python-test-coverage.yml +++ b/.github/workflows/python-test-coverage.yml @@ -51,7 +51,7 @@ jobs: - name: Check coverage threshold run: python ${{ github.workspace }}/.github/scripts/python_check_coverage.py python-coverage.xml ${{ env.COVERAGE_THRESHOLD }} - name: Upload coverage report - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1 + uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2 with: name: python-coverage-report path: | @@ -71,7 +71,7 @@ jobs: pull-requests: read steps: - name: Download coverage report - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1 + uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2 with: name: python-coverage-report path: python diff --git a/docs/decisions/0029-mcp-skill-templates-and-direct-references.md b/docs/decisions/0029-mcp-skill-templates-and-direct-references.md index 7c9aa6fbb96..4d758180943 100644 --- a/docs/decisions/0029-mcp-skill-templates-and-direct-references.md +++ b/docs/decisions/0029-mcp-skill-templates-and-direct-references.md @@ -632,10 +632,10 @@ The method naming (`SupportsReadByUri`, `CanReadByUri`, `ReadByUriAsync`) should ## References - [SEP-2640: Skills Extension](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2640) - Draft proposal -- [SEP-2640 Implementation Guidelines: Model-Driven Resource Loading](https://github.com/modelcontextprotocol/experimental-ext-skills/blob/main/docs/sep-draft-skills-extension.md#hosts-model-driven-resource-loading) +- [SEP-2640 Implementation Guidelines: Model-Driven Resource Loading](https://github.com/modelcontextprotocol/ext-skills/blob/main/docs/archive/sep-draft-skills-extension.md#hosts-end-to-end-integration) - [MCP Completion API](https://modelcontextprotocol.io/specification/2025-11-25/server/utilities/completion) - Used for template variable resolution - [MCP Resource Templates](https://modelcontextprotocol.io/specification/2025-11-25/server/resources#resource-templates) -- [Skills Over MCP Working Group](https://github.com/modelcontextprotocol/experimental-ext-skills) -- [Open Question #4: Multi-server skill dependencies](https://github.com/modelcontextprotocol/experimental-ext-skills/issues/39) +- [Skills Over MCP Working Group](https://github.com/modelcontextprotocol/ext-skills) +- [Open Question #4: Multi-server skill dependencies](https://github.com/modelcontextprotocol/ext-skills/issues/39) - [Anthropic Agent Skills - Overview](https://platform.claude.com/docs/en/agents-and-tools/agent-skills/overview) - Prior art: single skill entrypoint + generic file reads - [Anthropic Agent Skills in the SDK](https://code.claude.com/docs/en/agent-sdk/skills) - The `Skill` tool exposed to the model diff --git a/docs/decisions/0045-dotnet-unanswered-tool-approvals.md b/docs/decisions/0045-dotnet-unanswered-tool-approvals.md new file mode 100644 index 00000000000..c03d9bcbd03 --- /dev/null +++ b/docs/decisions/0045-dotnet-unanswered-tool-approvals.md @@ -0,0 +1,123 @@ +--- +status: proposed +contact: westey-m +date: 2026-10-02 +deciders: westey-m +--- + +# Reject unanswered tool approvals on the next .NET agent run + +## Context and Problem Statement + +An agent can save a tool-approval request and return it to an app that never sends +an answer. The user might close the page or the app might fail before submitting +the decision. Later messages then fail because the saved conversation contains +an unanswered request. Retrying a previously supplied answer is supported, but +does not help an app that no longer holds that answer. + +See [microsoft/agent-framework#8849](https://github.com/microsoft/agent-framework/issues/8849) +and the earlier [approval design](0006-userapproval.md). + +## Decision Drivers + +- A missing answer must never authorize tool execution. +- A conversation should remain usable after the app loses an approval request. +- Supplied decisions and retry behavior should keep working. +- Recovery should work with a saved and restored session. + +## Considered Options + +- Continue throwing until the app supplies every answer. +- Return the unanswered approval requests to the caller again. +- Automatically reject unanswered requests on the next run. + +## Decision Outcome + +Chosen option: **automatically reject unanswered requests on the next run**. +This allows the conversation to continue without executing tools the user did +not approve. Returning requests again complicates the response and history +handling, while continuing to throw leaves the reported problem unresolved. + +The existing `ApprovalResponseBindingChatClient` first checks supplied answers, +then supplies a rejection for each remaining saved request whose call does not +already have a result. This applies to partially answered batches and empty +input, not just new text messages. Waiting or closing the app does not itself +reject anything; the app must start another run. + +Use the saved request's tool call, not a caller-supplied replacement. Keep the +existing protection against fabricated and duplicate approvals, and the +existing removal of pending state only after the inner call succeeds. A failed +attempt therefore leaves requests available for retry. + +Copy both incoming approval calls and the saved calls used to make decisions: +the function-invocation code changes those call objects while handling them. +A failed attempt must not change the original request or prevent a later explicit +approval from executing the tool. + +Group supplied, automatic, and missing-answer decisions after any replayed +unfinished requests and before new caller content. This keeps the resulting tool results +before the new question, including when the inference service owns the history. +Keep approval answers whose calls already have results in their original +positions, and do not use completed requests as insertion points for pending +answers. This preserves earlier completed approval cycles. + +Return the generated rejection responses before the tool-call/result messages, +so callers can see the decisions and end-of-run history saving can store them. +Do not return supplied answers again: they are already part of the input. +Keep the returned function-call objects separate from the ones processed by +the function-invocation code, so their flags are not changed during processing. +Service-side and per-service-call history saving still happens below that code +and receives only the processed function calls/results, not approval content. +Streaming emits the generated decisions before the tool results; a later failure +or early stop still leaves the saved approval requests available for retry. +Receiving a streamed decision is not proof that the whole run succeeded. + +When incoming history already contains a result for a call, preserve its approval +response without requiring a pending session record and do not generate another +rejection. The function-invocation code uses that result to avoid processing the +call again. History containing an approval request and a result but no matching +approval response is not repaired by this component; the request still needs +an answer. Returning generated responses ensures newly saved conversations +include that answer without changing the original request's flags. +No additional history read is required. + +Workflow hosts also forward externally supplied approval answers before the +agent's tool results, even when ordinary incoming messages are not forwarded. +They wait for the agent's completed function call and matching result and build +the forwarded answer from that completed call, not from the caller's tool +details. The saved request's call id identifies the corresponding completed +call. The result prevents another agent from executing it again. +Other agents may already have received the approval request as part of the +shared conversation; forwarding only its result would leave that request +unanswered in their histories. This forwarding applies only to answers handled +by the workflow's approval-response handler, not decisions received from other +agents. When ordinary incoming forwarding is enabled, only that external answer +is held back until completion; other incoming messages are forwarded as before. + +End-of-run history saving still appends the original new input before returned +messages. A recovery question can therefore appear before the generated +rejection and reconstructed call/result in stored history. On replay, FICC +removes the approval content and keeps the reconstructed call/result pair +adjacent; this does not by itself produce an orphan result or invalid tool-call +sequence. The stored chronological order is not rewritten by this component. + +This is the default where approval-response binding is enabled. Disabling that +component also disables automatic rejection; no separate setting is added. +Tools that do not require approval keep their existing automatic handling. +The helper that presents requests one at a time keeps its queue behavior: this +rule applies when it next calls the underlying agent. + +Apps must supply all desired approval decisions before continuing the agent. +An answer arriving after a successful automatic rejection cannot authorize the +old call. The model can still request a new call and ask for approval again. +This decision does not make tool execution and history storage a single atomic +operation or remove the existing possibility of repeated execution after a +failed run. + +In particular, a service may accept a tool result during one call before a later +call in the same run fails. The outer approval checker cannot observe that +intermediate success, and service-owned history may not be readable. Retrying +can therefore send another result, either by repeating an explicit approval or +by rejecting an unanswered request. Avoiding this requires separate handling of +partial service success; this decision does not add approval-specific tracking +to the history-persistence component. diff --git a/docs/decisions/0045-python-mcp-v2-client-lifecycle.md b/docs/decisions/0045-python-mcp-v2-client-lifecycle.md new file mode 100644 index 00000000000..765daa5d134 --- /dev/null +++ b/docs/decisions/0045-python-mcp-v2-client-lifecycle.md @@ -0,0 +1,248 @@ +--- +status: approved +date: 2026-10-15 +deciders: jpalvarezl, eavanvalkenburg +--- + +# Use the MCP SDK Client as the primary Python MCP client + +## Context and Problem Statement + +The Python `MCPTool` implementation originally owned an MCP transport, constructed a low-level `ClientSession`, and +used that session for every operation. The MCP Python SDK 2.x adds a high-level `Client` that owns protocol +negotiation and standard client behavior across modern and legacy peers. + +Using `Client` only for negotiation and then routing operations through `client.session` would bypass high-level +behavior such as multi-round-trip request (MRTR) handling and response caching. At the same time, existing callers +can supply an already-created `ClientSession` and expect Agent Framework not to take ownership of it, while callers +using the modern API need to supply an already-entered high-level `Client` without transferring its ownership. + +This decision defines the lasting boundary between the two SDK levels and three ownership modes, including lifecycle, +caching, subscription recovery, and the meaning of `MCPTool.session`. + +This ADR covers the outbound Python MCP client. Hosting/server code continues to use the SDK server APIs. + +## Decision Drivers + +- One Agent Framework API must support modern and legacy MCP peers. +- Standard protocol behavior should remain owned by the MCP SDK rather than be duplicated in Agent Framework. +- Framework-created resources must be closed by the task that opened them, including cancellation and failed + connection attempts. +- Caller-supplied Clients, sessions, and HTTP clients must remain caller-owned. +- Reconnect, authenticated header identity, catalog publication, security, tracing, and result conversion remain + Agent Framework policy. +- Tools, prompts, and resources should follow one operation-routing rule. +- Tasks and durable human-input continuation are separate from base MRTR support. + +## Considered Options + +- Retain the high-level SDK `Client` and use it for standard operations in both ownership modes, with `ClientSession` + as a deprecated caller-owned low-level compatibility path. +- Use `Client` only for negotiation while continuing operations through `client.session`. +- Reimplement negotiation, MRTR, caching, and subscriptions around `ClientSession`. +- Add separate modern and legacy Agent Framework tool classes or a public protocol-mode switch. + +## Decision Outcome + +Chosen option: use the high-level SDK `Client` for both framework-owned and caller-owned high-level connections. +The caller-owned `ClientSession` path is retained for backward compatibility but is considered deprecated for new +usage; callers should prefer supplying a high-level `Client`. + +The private `_MCPConnection` protocol is the operation seam. Its implementations deliberately do not expose both +SDK levels: + +- `_ClientMCPConnection` uses an entered high-level `mcp.Client`. Its `is_framework_owned` flag records whether + Agent Framework created and manages the Client or the caller supplied and manages it. Its `client` property + references that Client and its `session` property remains `None`. Tool, prompt, resource, catalog, logging, and + liveness operations route through `Client`; they never use `client.session` as the operation provider. +- `_SessionMCPConnection` wraps a caller-supplied `ClientSession`. This is a deprecated low-level compatibility + path retained for existing applications. Its `session` property references that session and its `client` property + remains `None`. Operations call the session directly and do not gain high-level caching or automatic MRTR behavior. + +`MCPTool.session` is therefore meaningful only for the deprecated caller-supplied low-level path. High-level Client +connections do not publish the SDK Client's internal compatibility session through that property. + +### Ownership model + +Agent Framework owns: + +- transport and Client construction, Client entry, and resource cleanup for framework-created connections; +- the lifecycle-owner task, locks, connection publication, reset coordination, and cancellation cleanup; +- request-scoped HTTP header identity and reconnects caused by identity changes; +- tool argument filtering and trusted request metadata merging; +- result parsing, Agent Framework content conversion, tracing, and error translation; +- atomic catalog publication and rollback after a failed complete fetch; +- the background catalog-subscription task for any high-level Client, including refresh scheduling, retry/backoff, + cancellation, and recovery after a subscription ends or is lost; +- security and approval policy. + +For **caller-supplied** connections, the caller owns: + +- entering and closing a **supplied** high-level `Client`; +- constructing and closing a **supplied** low-level `ClientSession`; +- the transport, authentication, callbacks, and other configuration already captured by either supplied object. + +The SDK `Client` owns: + +- modern negotiation and legacy initialization fallback; +- standard tool, prompt, and resource operations; +- MRTR callback dispatch, retries, round limits, request state, and input responses; +- response-cache storage and protocol-driven invalidation; +- `Client.listen()` acknowledgment and the subscription event stream; +- protocol, client, and capability metadata. + +### Operation ownership + +| Operation | Framework-owned `Client` | Caller-owned `Client` | Caller-owned `ClientSession` | +|---|---|---|---| +| Connection lifecycle | Agent Framework constructs, enters, and closes the Client | Caller constructs, enters, and closes the Client | Caller constructs and closes the session | +| Connection negotiation | Enter `Client` in automatic mode | Reuse the already-entered Client | Initialize only when required for legacy compatibility | +| `tools/list`, `tools/call` | High-level `Client` operation | High-level `Client` operation | Direct `ClientSession` operation | +| `prompts/list`, `prompts/get` | High-level `Client` operation | High-level `Client` operation | Direct `ClientSession` operation | +| Resource reads | `Client` with SDK cache behavior | `Client` with SDK cache behavior | Direct, uncached session call | +| Catalog subscriptions | Agent Framework owns recovery around `Client.listen()` | Agent Framework owns recovery around `Client.listen()` | Legacy notification handling only | +| `MCPTool.session` | `None` | `None` | The caller-supplied `ClientSession` | +| Tasks or arbitrary extension RPCs | Future supported Client API | Future supported Client API | Raw session request only at an explicit extension boundary | + +### Cache policy + +High-level Clients use SDK response caching for catalog and resource operations regardless of whether Agent Framework +or the caller owns the Client. Modern server `ttlMs` and `cacheScope` hints control reuse and invalidation. Legacy +peers do not provide those hints and remain effectively uncached under the default zero TTL. + +Caller-supplied `ClientSession` connections always call the server directly. Agent Framework does not expose a +shared cache store or cache-mode configuration. Reconnect or an effective header-identity change replaces the +framework-owned Client and its per-client cache. + +### MRTR + +For both framework-owned and caller-owned high-level connections, `tools/call`, `prompts/get`, and `resources/read` +use the Client. The SDK drives embedded elicitation, sampling, and roots requests and retries the original operation +with the required responses and state. + +Agent Framework does not import the SDK's private MRTR driver or implement parallel MRTR loops. A caller-supplied +session remains a raw low-level path and does not gain automatic MRTR merely because callbacks are configured on it. + +Durable pause/resume across processes would require a separate continuation design and function-calling-loop review; +it is not part of this decision. + +### Subscription recovery + +The SDK Client owns protocol-level `listen` acknowledgment and event delivery. Agent Framework owns the long-running +subscription lifecycle around it: + +- one background subscription task per active high-level Client; +- tool and prompt catalog refresh when events arrive; +- refresh before reopening after stream loss or completion; +- retry with bounded backoff for recoverable subscription failures; +- cancellation when the connection is reset, replaced, or closed; +- fallback to legacy catalog notifications when the peer does not support `listen`. + +The recovery task always verifies that the Client is still the active connection before refreshing or reopening, so +an obsolete subscription cannot mutate a replacement connection's catalogs. + +### Caller-supplied high-level Clients + +A caller-supplied `Client` is the preferred way to provide an existing connection: + +- The Client must already be entered before the MCP tool connects. +- Agent Framework does not enter, close, replace, or recreate it. +- Standard operations continue through the high-level Client and retain SDK MRTR and response-cache behavior. +- Agent Framework manages its own catalog-subscription task around `Client.listen()` while the wrapper is connected. +- `MCPTool.session` remains `None`. +- Closing or resetting the wrapper preserves the supplied Client so the caller can continue using or closing it. + +### Caller-supplied low-level sessions + +A caller-supplied `ClientSession` remains a deprecated low-level compatibility path: + +- Agent Framework does not enter, close, replace, wrap, or reconnect it. +- An already negotiated session is reused. +- An unnegotiated session retains legacy initialization compatibility. +- Standard calls remain direct and do not gain high-level MRTR or SDK response caching. +- `MCPTool.session` returns this session and can replace or clear this low-level connection path. + +The SDK does not provide a public API that adopts an existing `ClientSession` into a high-level Client without +opening a separate connection, so Agent Framework does not simulate adoption. + +### Legacy callbacks, logging, and liveness + +Framework-created connections use automatic protocol negotiation even when sampling is configured. The SDK routes +the same callback through the legacy server-to-client back-channel and through modern embedded MRTR requests. + +Modern request metadata carries log-level preference. Legacy `logging/setLevel` and ping behavior remain explicitly +protocol-gated compatibility operations; they are not universal preflights. + +### Tasks + +The supported MCP Python SDK 2.x runtime does not expose the current `io.modelcontextprotocol/tasks` extension. +Tools that may require Tasks are not presented as ordinary supported calls, and the removed long-running Tasks +sample remains deferred. An MRTR `InputRequiredResult` is not a Tasks `input_required` status. + +## Consequences + +- Good, because modern and legacy peers use one public Agent Framework API. +- Good, because standard operations, MRTR, and caching stay on the supported high-level SDK surface. +- Good, because the connection seam distinguishes framework-owned and caller-owned high-level Clients from the + deprecated low-level session path. +- Good, because reconnect, cancellation, header identity, subscription recovery, parsing, and policy remain Agent + Framework concerns. +- Neutral, because caller-supplied low-level sessions intentionally have fewer protocol conveniences. +- Neutral, because `MCPTool.session` returns `None` for all high-level Client connections. +- Bad, because integrations that previously treated `session` as a universal connection handle must instead use the + operation seam, a caller-owned Client, or the deprecated caller-owned session path. + +## Validation + +Committed contract tests cover: + +- modern negotiation and legacy fallback; +- framework-owned Client publication, failure cleanup, reset, reconnect, cancellation, and header identity changes; +- caller-owned Client publication, high-level operation routing, capability reuse, reset preservation, and cleanup; +- standard operations routing through the active Client; +- tool, prompt, and resource MRTR; +- cache TTL, pagination, invalidation, reconnect, and identity changes; +- caller-owned session behavior remaining direct, uncached, and caller-owned; +- subscription refresh, stream loss, retry/backoff, replacement, cancellation, and legacy notification fallback; +- legacy sampling, logging, and ping compatibility. + +## Pros and Cons of the Options + +### Use Client for high-level operations + +- Good, because it uses the SDK's supported high-level surface. +- Good, because it avoids duplicate negotiation, MRTR, and caching code. +- Good, because the low-level session remains available as a deprecated caller-owned compatibility path. +- Bad, because code cannot assume every MCP connection exposes a `ClientSession`. + +### Use Client only for negotiation + +- Good, because it would minimize immediate routing changes. +- Bad, because calling `client.session` for operations bypasses SDK-owned MRTR and caching. +- Bad, because each new protocol feature would reopen the same ownership question. + +### Reimplement behavior around ClientSession + +- Good, because Agent Framework could expose every intermediate protocol round. +- Bad, because it would duplicate SDK protocol policy, cancellation behavior, round limits, and cache invalidation. +- Bad, because it would add continuation complexity without a durable continuation requirement. + +### Add era-specific public classes + +- Good, because callers could force a known protocol era. +- Bad, because callers should not need to know the peer's era before connecting. +- Bad, because it would fragment public classes, samples, and tests. + +## More Information + +- [Python MCP 2026-07-28 umbrella issue](https://github.com/microsoft/agent-framework/issues/8245) +- [MCP Python SDK client guide](https://py.sdk.modelcontextprotocol.io/client/) +- [MCP Python SDK MRTR guide](https://py.sdk.modelcontextprotocol.io/handlers/multi-round-trip/) +- [MCP Python SDK caching guide](https://py.sdk.modelcontextprotocol.io/client/caching/) +- [MCP Python SDK subscriptions guide](https://py.sdk.modelcontextprotocol.io/client/subscriptions/) +- [MCP MRTR specification](https://modelcontextprotocol.io/specification/2026-07-28/basic/patterns/mrtr) +- [MCP subscriptions specification](https://modelcontextprotocol.io/specification/2026-07-28/basic/patterns/subscriptions) +- [MCP caching specification](https://modelcontextprotocol.io/specification/2026-07-28/server/utilities/caching) +- [ADR 0043: MCP runtime context](0043-python-mcp-runtime-context.md) + +This ADR remains `proposed` until accepted through the repository ADR review process. diff --git a/docs/specs/004-python-function-calling-loop.md b/docs/specs/004-python-function-calling-loop.md index d5b9d1ec622..fe1a1c29428 100644 --- a/docs/specs/004-python-function-calling-loop.md +++ b/docs/specs/004-python-function-calling-loop.md @@ -501,6 +501,10 @@ that manually replay messages own the equivalent rule: do not resend an approval observable warning/log. A nested `call_id` is never accepted as an occurrence-identity alias. - Session-backed pending snapshots are trusted host state and require tenant-scoped, authorized storage. Consume-on-bind does not claim durable exactly-once behavior across crashes or concurrent workers. +- HTTP adapters that retain approval authority across requests must require an authenticated authorization scope or an + explicit single-user declaration. Client-owned conversation or thread identifiers never establish approval + ownership. A configured scope resolver that fails or returns an invalid value must fail before accessing pending + approval state and must not fall back to unscoped operation. - Tool lookup uses the recorded name against the current registry. A same-name implementation upgrade is allowed; removing the name prevents local execution. - Only the strict boolean `True` grants approval. Missing decisions and non-boolean values are rejection, not consent. diff --git a/dotnet/AGENTS.md b/dotnet/AGENTS.md index 7cf79f31201..82a40871e26 100644 --- a/dotnet/AGENTS.md +++ b/dotnet/AGENTS.md @@ -40,6 +40,7 @@ using types like `IChatClient`, `FunctionInvokingChatClient`, `AITool`, `AIFunct - **Async**: Use `Async` suffix for methods returning `Task`/`ValueTask` - **Private classes**: Should be `sealed` unless subclassed - **Config**: Read from environment variables with `UPPER_SNAKE_CASE` naming +- **String comparisons**: Use `string.Equals` with an explicit `StringComparison` (typically `Ordinal`) rather than `==`. - **Tests**: Add Arrange/Act/Assert comments; use Moq for mocking; test methods returning `Task`/`ValueTask` must use the `Async` suffix. ## Key Design Principles diff --git a/dotnet/Directory.Packages.props b/dotnet/Directory.Packages.props index 5d0f043aa62..320b68548b6 100644 --- a/dotnet/Directory.Packages.props +++ b/dotnet/Directory.Packages.props @@ -7,7 +7,7 @@ - 13.6.0 + 13.6.1 @@ -22,7 +22,7 @@ - + @@ -120,8 +120,8 @@ - - + + diff --git a/dotnet/nuget/nuget-package.props b/dotnet/nuget/nuget-package.props index 32beaeedd3b..e82e4f6c165 100644 --- a/dotnet/nuget/nuget-package.props +++ b/dotnet/nuget/nuget-package.props @@ -1,9 +1,9 @@ - 1.24.0 + 1.25.0 1 - 261006 + 261014 $(VersionPrefix)-rc$(RCNumber) $(VersionPrefix)-$(VersionSuffix).$(DateSuffix).1 $(VersionPrefix)-preview.$(DateSuffix).1 diff --git a/dotnet/samples/02-agents/AgentProviders/foundry/Agent_Step12_Middleware/README.md b/dotnet/samples/02-agents/AgentProviders/foundry/Agent_Step12_Middleware/README.md index 58450262ad6..5506bce4ddf 100644 --- a/dotnet/samples/02-agents/AgentProviders/foundry/Agent_Step12_Middleware/README.md +++ b/dotnet/samples/02-agents/AgentProviders/foundry/Agent_Step12_Middleware/README.md @@ -10,6 +10,13 @@ This sample demonstrates multiple middleware layers working together: PII filter - Using `.AsBuilder().Use()` to compose middleware - No server-side agent creation or cleanup required +> **Note:** Function invocation middleware applies to tools registered on the agent. This +> includes tools passed to the `ChatClientAgent` constructor, passed to `AsAIAgent`, configured +> through `ChatClientAgentOptions.ChatOptions.Tools`, or supplied for an individual run. These +> tools are passed through `ChatOptions.Tools`. Functions added directly to +> `FunctionInvokingChatClient.AdditionalTools` bypass this middleware entirely, so don't rely on +> the middleware to enforce checks for those functions. + ## Prerequisites - .NET 10 SDK or later @@ -29,4 +36,3 @@ $env:FOUNDRY_MODEL="gpt-5.4-mini" cd dotnet/samples/02-agents/AgentProviders/foundry dotnet run --project .\Agent_Step12_Middleware ``` - diff --git a/dotnet/samples/02-agents/Agents/Agent_Step01_UsingFunctionToolsWithApprovals/Program.cs b/dotnet/samples/02-agents/Agents/Agent_Step01_UsingFunctionToolsWithApprovals/Program.cs index 1193a432aab..aa3e823b6c8 100644 --- a/dotnet/samples/02-agents/Agents/Agent_Step01_UsingFunctionToolsWithApprovals/Program.cs +++ b/dotnet/samples/02-agents/Agents/Agent_Step01_UsingFunctionToolsWithApprovals/Program.cs @@ -54,6 +54,7 @@ static string GetWeather([Description("The location to get the weather for.")] s }); // Pass the user input responses back to the agent for further processing. + // With the default approval checks, requests left unanswered on the next run are rejected automatically. response = await agent.RunAsync(userInputResponses, session); approvalRequests = response.Messages.SelectMany(m => m.Contents).OfType().ToList(); diff --git a/dotnet/samples/02-agents/Agents/Agent_Step11_Middleware/README.md b/dotnet/samples/02-agents/Agents/Agent_Step11_Middleware/README.md index 33a2113e20c..68bd7ef6d19 100644 --- a/dotnet/samples/02-agents/Agents/Agent_Step11_Middleware/README.md +++ b/dotnet/samples/02-agents/Agents/Agent_Step11_Middleware/README.md @@ -23,6 +23,13 @@ Not all agents support function invocation middleware. Attempting to use function middleware on agents that do not wrap a ChatClientAgent or derives from it will throw an InvalidOperationException. +> **Note:** Function invocation middleware applies to tools registered on the agent. This +> includes tools passed to the `ChatClientAgent` constructor, passed to `AsAIAgent`, configured +> through `ChatClientAgentOptions.ChatOptions.Tools`, or supplied for an individual run. These +> tools are passed through `ChatOptions.Tools`. Functions added directly to +> `FunctionInvokingChatClient.AdditionalTools` bypass this middleware entirely, so don't rely on +> the middleware to enforce checks for those functions. + ## Prerequisites 1. Environment variables: diff --git a/dotnet/samples/05-end-to-end/A2AClientServer/A2AServer/Program.cs b/dotnet/samples/05-end-to-end/A2AClientServer/A2AServer/Program.cs index e935422e00b..a89fb1e9c5d 100644 --- a/dotnet/samples/05-end-to-end/A2AClientServer/A2AServer/Program.cs +++ b/dotnet/samples/05-end-to-end/A2AClientServer/A2AServer/Program.cs @@ -63,8 +63,18 @@ original invoice and the credit memo number. Use the 'Formal Credit Notification // To enable multi-turn conversations, register a session store explicitly, e.g.: // builder.Services.AddKeyedSingleton(policyAgent.Name, new InMemoryAgentSessionStore()); -// Register the policy agent with the A2A hosting services. -builder.AddA2AServer(policyAgent); +// Configure the server to enforce the capabilities advertised in the agent card. +builder.AddA2AServer(policyAgent, options => +{ + options.ServerOptions = new A2AServerOptions + { + SupportsStreaming = policyAgentCard.Capabilities.Streaming == true, + SupportedInputModes = policyAgentCard.DefaultInputModes + .Concat(policyAgentCard.Skills.SelectMany(skill => skill.InputModes ?? [])) + .Distinct(StringComparer.OrdinalIgnoreCase) + .ToArray(), + }; +}); var app = builder.Build(); diff --git a/dotnet/samples/05-end-to-end/A2AClientServer/A2AServer/README.md b/dotnet/samples/05-end-to-end/A2AClientServer/A2AServer/README.md index 7f273667248..af30c37bf67 100644 --- a/dotnet/samples/05-end-to-end/A2AClientServer/A2AServer/README.md +++ b/dotnet/samples/05-end-to-end/A2AClientServer/A2AServer/README.md @@ -28,6 +28,36 @@ the A2A Inspector. By default, it listens at `http://localhost:5000`. default to `http://localhost:5000`. Set them together when the server should run at a different address. +## Agent card and server settings + +Publishing an agent card only provides discovery information; it does not +configure the separately registered A2A server. This sample derives the server +settings from the same card that it publishes: + +```csharp +builder.AddA2AServer(policyAgent, options => +{ + options.ServerOptions = new A2AServerOptions + { + SupportsStreaming = policyAgentCard.Capabilities.Streaming == true, + SupportedInputModes = policyAgentCard.DefaultInputModes + .Concat(policyAgentCard.Skills.SelectMany(skill => skill.InputModes ?? [])) + .Distinct(StringComparer.OrdinalIgnoreCase) + .ToArray(), + }; +}); +``` + +The input modes include both the card defaults and any skill-specific modes, +with case-insensitive duplicates removed. The policy card disables streaming +and accepts `text/plain`, so both protocol bindings reject streaming requests +and message parts that declare other media types, such as `image/png`, before +invoking the agent. Parts without a declared media type are not rejected by +this media-type check. + +When `ServerOptions` is not configured, the underlying SDK defaults still +apply: streaming is enabled, and input media types are not restricted. + ## Test with the HTTP file Open `A2AServer.http` in an editor that supports HTTP files, such as Visual diff --git a/dotnet/samples/community-projects.md b/dotnet/samples/community-projects.md index b49d4d4fefd..a22b6030673 100644 --- a/dotnet/samples/community-projects.md +++ b/dotnet/samples/community-projects.md @@ -13,4 +13,23 @@ the Agent Framework .NET SDK. Entries are reviewed against the > repository and issue tracker. > For security concerns, follow the maintainer's security reporting guidance. -No projects have been added yet. +## Vector stores + +All listed providers support chat history memory with `ChatHistoryMemoryProvider` +and RAG with `TextSearchProvider`. + +| Name | Brief description | Project | Issues | +| --- | --- | --- | --- | +| CommunityToolkit.VectorData.AzureAISearch | A Microsoft.Extensions.VectorData provider for Azure AI Search. | [CommunityToolkit.VectorData.AzureAISearch](https://www.nuget.org/packages/CommunityToolkit.VectorData.AzureAISearch) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.AzureCosmosDB | A Microsoft.Extensions.VectorData provider for Azure Cosmos DB for NoSQL. | [CommunityToolkit.VectorData.AzureCosmosDB](https://www.nuget.org/packages/CommunityToolkit.VectorData.AzureCosmosDB) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.AzureDocumentDB | A Microsoft.Extensions.VectorData provider for Azure DocumentDB with MongoDB compatibility. | [CommunityToolkit.VectorData.AzureDocumentDB](https://www.nuget.org/packages/CommunityToolkit.VectorData.AzureDocumentDB) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.Chroma | A Microsoft.Extensions.VectorData provider for Chroma and Chroma Cloud, built on ChromaDotNet.Client. | [CommunityToolkit.VectorData.Chroma](https://www.nuget.org/packages/CommunityToolkit.VectorData.Chroma) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.InMemory | An in-memory Microsoft.Extensions.VectorData provider. | [CommunityToolkit.VectorData.InMemory](https://www.nuget.org/packages/CommunityToolkit.VectorData.InMemory) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.PgVector | A Microsoft.Extensions.VectorData provider for PostgreSQL with the pgvector extension. | [CommunityToolkit.VectorData.PgVector](https://www.nuget.org/packages/CommunityToolkit.VectorData.PgVector) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.Qdrant | A Microsoft.Extensions.VectorData provider for Qdrant. | [CommunityToolkit.VectorData.Qdrant](https://www.nuget.org/packages/CommunityToolkit.VectorData.Qdrant) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.Redis | A Microsoft.Extensions.VectorData provider for Redis. | [CommunityToolkit.VectorData.Redis](https://www.nuget.org/packages/CommunityToolkit.VectorData.Redis) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.SqliteVec | A Microsoft.Extensions.VectorData provider for SQLite using sqlite-vec. | [CommunityToolkit.VectorData.SqliteVec](https://www.nuget.org/packages/CommunityToolkit.VectorData.SqliteVec) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.SqlServer | A Microsoft.Extensions.VectorData provider for SQL Server. | [CommunityToolkit.VectorData.SqlServer](https://www.nuget.org/packages/CommunityToolkit.VectorData.SqlServer) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CommunityToolkit.VectorData.Weaviate | A Microsoft.Extensions.VectorData provider for Weaviate. | [CommunityToolkit.VectorData.Weaviate](https://www.nuget.org/packages/CommunityToolkit.VectorData.Weaviate) | [Open an issue](https://github.com/CommunityToolkit/AI/issues/new) | +| CouchbaseConnector.SemanticKernel | A Microsoft.Extensions.VectorData provider for Couchbase and Couchbase Capella. | [CouchbaseConnector.SemanticKernel](https://www.nuget.org/packages/CouchbaseConnector.SemanticKernel) | [Open an issue](https://github.com/Couchbase-Ecosystem/couchbase-semantic-kernel/issues/new/choose) | +| Elastic.SemanticKernel.Connectors.Elasticsearch | A Microsoft.Extensions.VectorData provider for Elasticsearch. | [Elastic.SemanticKernel.Connectors.Elasticsearch](https://www.nuget.org/packages/Elastic.SemanticKernel.Connectors.Elasticsearch) | [Open an issue](https://github.com/elastic/ai-dotnet/issues/new) | diff --git a/dotnet/src/Microsoft.Agents.AI.A2A/A2AAgent.cs b/dotnet/src/Microsoft.Agents.AI.A2A/A2AAgent.cs index d66bc66e337..e1ae2ec4a7b 100644 --- a/dotnet/src/Microsoft.Agents.AI.A2A/A2AAgent.cs +++ b/dotnet/src/Microsoft.Agents.AI.A2A/A2AAgent.cs @@ -374,6 +374,13 @@ private static Message CreateA2AMessage(A2AAgentSession typedSession, IReadOnlyC { var a2aMessage = messages.ToA2AMessage(); + if (a2aMessage.Parts.Count == 0) + { + throw new ArgumentException( + "The provided messages contain no content that can be sent to the remote agent.", + nameof(messages)); + } + // Linking the message to the existing conversation, if any. // See: https://github.com/a2aproject/A2A/blob/main/docs/topics/life-of-a-task.md#group-related-interactions a2aMessage.ContextId = typedSession.ContextId; @@ -488,7 +495,7 @@ private AgentResponseUpdate ConvertToAgentResponseUpdate(TaskStatusUpdateEvent s MessageId = statusUpdateEvent.Status.Message?.MessageId, FinishReason = MapTaskStateToFinishReason(statusUpdateEvent.Status.State), AdditionalProperties = statusUpdateEvent.Metadata?.ToAdditionalProperties() ?? [], - Contents = statusUpdateEvent.Status.GetUserInputRequests(), + Contents = statusUpdateEvent.Status.ToChatMessage()?.Contents, }; } diff --git a/dotnet/src/Microsoft.Agents.AI.A2A/Extensions/A2AAgentTaskExtensions.cs b/dotnet/src/Microsoft.Agents.AI.A2A/Extensions/A2AAgentTaskExtensions.cs index 0dd79e0f12f..6b731d93760 100644 --- a/dotnet/src/Microsoft.Agents.AI.A2A/Extensions/A2AAgentTaskExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI.A2A/Extensions/A2AAgentTaskExtensions.cs @@ -25,12 +25,9 @@ internal static class A2AAgentTaskExtensions } } - if (agentTask.Status?.GetUserInputRequests() is { } userInputRequests) + if (agentTask.Status?.ToChatMessage() is { } statusMessage) { - (messages ??= []).Add(new(ChatRole.Assistant, userInputRequests) - { - RawRepresentation = agentTask.Status, - }); + (messages ??= []).Add(statusMessage); } return messages; @@ -50,9 +47,9 @@ internal static class A2AAgentTaskExtensions } } - if (agentTask.Status?.GetUserInputRequests() is { } userInputRequests) + if (agentTask.Status?.ToChatMessage()?.Contents is { } statusContents) { - (aiContents ??= []).AddRange(userInputRequests); + (aiContents ??= []).AddRange(statusContents); } return aiContents; diff --git a/dotnet/src/Microsoft.Agents.AI.A2A/Extensions/AgentTaskStatusExtensions.cs b/dotnet/src/Microsoft.Agents.AI.A2A/Extensions/AgentTaskStatusExtensions.cs index 40fd8db9ad7..1f94f56a8f2 100644 --- a/dotnet/src/Microsoft.Agents.AI.A2A/Extensions/AgentTaskStatusExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI.A2A/Extensions/AgentTaskStatusExtensions.cs @@ -1,6 +1,5 @@ // Copyright (c) Microsoft. All rights reserved. -using System.Collections.Generic; using Microsoft.Extensions.AI; using Microsoft.Shared.Diagnostics; @@ -11,25 +10,25 @@ namespace A2A; /// internal static class AgentTaskStatusExtensions { - internal static IList? GetUserInputRequests(this TaskStatus status) + internal static ChatMessage? ToChatMessage(this TaskStatus status) { _ = Throw.IfNull(status); - List? contents = null; - - if (status.Message is null || status.State is not TaskState.InputRequired) + // Status messages are optional, even for unsuccessful tasks. + if (status.Message is null) { - return contents; + return null; } - foreach (var part in status.Message.Parts) + // Skip status messages for routine progress and successful completion. + if (status.State is TaskState.Submitted or TaskState.Working or TaskState.Completed) { - var aiContent = part.ToAIContent(); - aiContent.RawRepresentation = part; - aiContent.AdditionalProperties = part.Metadata.ToAdditionalProperties(); - (contents ??= []).Add(aiContent); + return null; } - return contents; + // Convert status messages for InputRequired, AuthRequired, Failed, Canceled, Rejected, and Unspecified. + var message = status.Message.ToChatMessage(); + + return message.Contents.Count > 0 ? message : null; } } diff --git a/dotnet/src/Microsoft.Agents.AI.Foundry/Memory/FoundryMemoryProvider.cs b/dotnet/src/Microsoft.Agents.AI.Foundry/Memory/FoundryMemoryProvider.cs index 60bb3ac26cb..3f13c01019e 100644 --- a/dotnet/src/Microsoft.Agents.AI.Foundry/Memory/FoundryMemoryProvider.cs +++ b/dotnet/src/Microsoft.Agents.AI.Foundry/Memory/FoundryMemoryProvider.cs @@ -170,7 +170,7 @@ protected override async ValueTask ProvideAIContextAsync(InvokingCont { throw; } - catch (Exception ex) + catch (Exception ex) when (ex is not OperationCanceledException || !cancellationToken.IsCancellationRequested) { if (this._logger?.IsEnabled(LogLevel.Error) is true) { @@ -238,7 +238,7 @@ protected override async ValueTask StoreAIContextAsync(InvokedContext context, C response.UpdateId); } } - catch (Exception ex) + catch (Exception ex) when (ex is not OperationCanceledException || !cancellationToken.IsCancellationRequested) { if (this._logger?.IsEnabled(LogLevel.Error) is true) { diff --git a/dotnet/src/Microsoft.Agents.AI.Harness/HarnessAgentOptions.cs b/dotnet/src/Microsoft.Agents.AI.Harness/HarnessAgentOptions.cs index c79d84af77f..a198c910eda 100644 --- a/dotnet/src/Microsoft.Agents.AI.Harness/HarnessAgentOptions.cs +++ b/dotnet/src/Microsoft.Agents.AI.Harness/HarnessAgentOptions.cs @@ -228,6 +228,11 @@ public sealed class HarnessAgentOptions /// above the function invocation middleware. It records each surfaced approval request and, on the next /// request, binds every approval response to its recorded request so an approved call matches exactly what /// was surfaced for approval. + /// Any recorded request left unanswered when the underlying agent next runs is automatically rejected without + /// executing the tool. This also applies to partially answered batches and runs without messages. + /// Disabling binding also disables automatic rejection. + /// Generated rejection responses are included in the underlying agent's returned messages before tool results, + /// allowing end-of-run history saving to record them. /// public bool DisableApprovalResponseBinding { get; set; } diff --git a/dotnet/src/Microsoft.Agents.AI.Hosting.A2A.AspNetCore/A2AEndpointRouteBuilderExtensions.cs b/dotnet/src/Microsoft.Agents.AI.Hosting.A2A.AspNetCore/A2AEndpointRouteBuilderExtensions.cs index 919f40b5937..6dad579786e 100644 --- a/dotnet/src/Microsoft.Agents.AI.Hosting.A2A.AspNetCore/A2AEndpointRouteBuilderExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI.Hosting.A2A.AspNetCore/A2AEndpointRouteBuilderExtensions.cs @@ -88,13 +88,7 @@ public static IEndpointConventionBuilder MapA2AHttpJson(this IEndpointRouteBuild $"No A2AServer is registered for agent '{agentName}'. " + $"Call services.AddA2AServer(\"{agentName}\") or agentBuilder.AddA2AServer() during service registration to register one."); - // TODO: The stub AgentCard is temporary and will be removed once the A2A SDK either removes the - // agentCard parameter of MapHttpA2A or makes it optional. MapHttpA2A exposes the agent card via a - // GET {path}/card endpoint that is not part of the A2A spec, so it is not expected to be consumed - // by any agent - returning a stub agent card here is safe. - var stubAgentCard = new AgentCard { Name = "A2A Agent" }; - - IEndpointConventionBuilder endpoint = endpoints.MapHttpA2A(a2aServer, stubAgentCard, path); + IEndpointConventionBuilder endpoint = endpoints.MapHttpA2A(a2aServer, path); MarkFeatureUsed(); return endpoint; } diff --git a/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/A2AAgentHandler.cs b/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/A2AAgentHandler.cs index cbeb6b848b9..8baf274020d 100644 --- a/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/A2AAgentHandler.cs +++ b/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/A2AAgentHandler.cs @@ -70,7 +70,7 @@ public Task ExecuteAsync(RequestContext context, AgentEventQueue eventQueue, Can public async Task CancelAsync(RequestContext context, AgentEventQueue eventQueue, CancellationToken cancellationToken) { var taskUpdater = new TaskUpdater(eventQueue, context.TaskId, context.ContextId); - await taskUpdater.CancelAsync(cancellationToken).ConfigureAwait(false); + await taskUpdater.CancelAsync(cancellationToken: cancellationToken).ConfigureAwait(false); } /// @@ -154,7 +154,7 @@ private async Task HandleNewMessageAsync(RequestContext context, AgentEventQueue { // The server is configured through AgentRunMode to return a task, but the non-streaming client request has // ReturnImmediately disabled, so collect all updates and return a completed task. - await AggregateTaskUpdatesAsync(updates, taskUpdater, eventQueue, cancellationToken).ConfigureAwait(false); + await AggregateTaskUpdatesAsync(updates, taskUpdater, cancellationToken).ConfigureAwait(false); } else { @@ -209,7 +209,7 @@ private async Task HandleTaskUpdateAsync(RequestContext context, AgentEventQueue { executionFailed = true; var failUpdater = new TaskUpdater(eventQueue, context.TaskId, contextId); - await failUpdater.FailAsync(message: null, CancellationToken.None).ConfigureAwait(false); + await failUpdater.FailAsync(message: null, cancellationToken: CancellationToken.None).ConfigureAwait(false); throw; } finally @@ -222,7 +222,7 @@ private async Task HandleTaskUpdateAsync(RequestContext context, AgentEventQueue // Complete the task with an artifact containing the response. var taskUpdater = new TaskUpdater(eventQueue, context.TaskId, contextId); await taskUpdater.AddArtifactAsync(response.Messages.ToParts(), cancellationToken: cancellationToken).ConfigureAwait(false); - await taskUpdater.CompleteAsync(message: null, cancellationToken).ConfigureAwait(false); + await taskUpdater.CompleteAsync(message: null, cancellationToken: cancellationToken).ConfigureAwait(false); } else { @@ -233,7 +233,7 @@ private async Task HandleTaskUpdateAsync(RequestContext context, AgentEventQueue ? CreateMessageFromResponse(contextId, response) : null; - await taskUpdater.StartWorkAsync(progressMessage, cancellationToken).ConfigureAwait(false); + await taskUpdater.StartWorkAsync(progressMessage, cancellationToken: cancellationToken).ConfigureAwait(false); } } @@ -318,7 +318,7 @@ private static async Task StreamTaskUpdatesAsync(IAsyncEnumerableCanceled/Failed so it is never left in a non-terminal state. /// - private static async Task AggregateTaskUpdatesAsync(IAsyncEnumerable updates, TaskUpdater updater, AgentEventQueue eventQueue, CancellationToken cancellationToken) + private static async Task AggregateTaskUpdatesAsync(IAsyncEnumerable updates, TaskUpdater updater, CancellationToken cancellationToken) { AgentResponse response = await updates.ToAgentResponseAsync(cancellationToken).ConfigureAwait(false); - await updater.SubmitAsync(cancellationToken).ConfigureAwait(false); + await updater.SubmitAsync(cancellationToken: cancellationToken).ConfigureAwait(false); try { if (response.Messages.ToParts() is { Count: > 0 } parts) { - await eventQueue.AddArtifactAsync( - updater, + await updater.AddArtifactAsync( parts, metadata: response.AdditionalProperties?.ToA2AMetadata(), cancellationToken: cancellationToken).ConfigureAwait(false); @@ -384,12 +383,12 @@ await eventQueue.AddArtifactAsync( } catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) { - await updater.CancelAsync(CancellationToken.None).ConfigureAwait(false); + await updater.CancelAsync(cancellationToken: CancellationToken.None).ConfigureAwait(false); throw; } catch (Exception) { - await updater.FailAsync(CreateFailureMessage(updater.ContextId, updater.TaskId), CancellationToken.None).ConfigureAwait(false); + await updater.FailAsync(CreateFailureMessage(updater.ContextId, updater.TaskId), cancellationToken: CancellationToken.None).ConfigureAwait(false); throw; } } diff --git a/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/A2AServerRegistrationOptions.cs b/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/A2AServerRegistrationOptions.cs index 2ef3f6be779..a623c1e5c9f 100644 --- a/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/A2AServerRegistrationOptions.cs +++ b/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/A2AServerRegistrationOptions.cs @@ -25,6 +25,9 @@ public sealed class A2AServerRegistrationOptions /// /// /// When , no custom server options are applied. + /// Publishing an agent card does not configure these options. Set + /// and + /// to match the card's streaming capability and its default and skill-specific input modes. /// public A2AServerOptions? ServerOptions { get; set; } } diff --git a/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/AgentEventQueueExtensions.cs b/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/AgentEventQueueExtensions.cs deleted file mode 100644 index 9f7646477b6..00000000000 --- a/dotnet/src/Microsoft.Agents.AI.Hosting.A2A/AgentEventQueueExtensions.cs +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright (c) Microsoft. All rights reserved. - -using System; -using System.Collections.Generic; -using System.Text.Json; -using System.Threading; -using System.Threading.Tasks; -using A2A; - -namespace Microsoft.Agents.AI.Hosting.A2A; - -/// -/// Provides extensions for writing A2A events to an . -/// -internal static class AgentEventQueueExtensions -{ - /// - /// Adds an artifact with metadata until the minimum A2A package version provides this capability on - /// . - /// - /// - /// Remove this method and call directly after upgrading to an A2A - /// package version whose overload accepts artifact metadata. - /// - public static ValueTask AddArtifactAsync( - this AgentEventQueue eventQueue, - TaskUpdater updater, - IReadOnlyList parts, - string? artifactId = null, - string? name = null, - string? description = null, - bool lastChunk = true, - bool append = false, - Dictionary? metadata = null, - CancellationToken cancellationToken = default) => - eventQueue.EnqueueArtifactUpdateAsync(new TaskArtifactUpdateEvent - { - TaskId = updater.TaskId, - ContextId = updater.ContextId, - Artifact = new Artifact - { - ArtifactId = artifactId ?? Guid.NewGuid().ToString("N"), - Name = name, - Description = description, - Parts = [.. parts], - Metadata = metadata, - }, - Append = append, - LastChunk = lastChunk, - }, cancellationToken); -} diff --git a/dotnet/src/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore/ConfigureAGUIJsonOptions.cs b/dotnet/src/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore/ConfigureAGUIJsonOptions.cs index 27a23ed4d62..78eccec92fa 100644 --- a/dotnet/src/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore/ConfigureAGUIJsonOptions.cs +++ b/dotnet/src/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore/ConfigureAGUIJsonOptions.cs @@ -16,11 +16,18 @@ public void Configure(JsonOptions options) { var chain = options.SerializerOptions.TypeInfoResolverChain; - // Agent Framework abstractions first to ensure M.E.AI types are handled via its resolver, - // followed by the AG-UI wire-format resolver for protocol types (the AG-UI context is needed - // on the net10 TypedResults.ServerSentEvents path, which serializes events through the - // configured ASP.NET Core JsonSerializerOptions). - chain.Add(AgentAbstractionsJsonUtilities.DefaultOptions.TypeInfoResolver!); - chain.Add(AGUIJsonSerializerContext.Default.Options.TypeInfoResolver!); + // Both resolvers must go in front of the reflection-based resolver ASP.NET Core already + // placed at the head of the chain; appending leaves them unreachable for every type that + // reflection can handle, which silently discards the AG-UI wire-format rules. + // + // AGUIJsonUtilities.DefaultTypeInfoResolver is the AG-UI context plus the modifier that omits + // properties with no value. Without it the SSE events go out with explicit nulls for their + // optional fields ("parentRunId": null and similar), which receiving SDKs reject. The AG-UI + // resolver is needed on the net10 TypedResults.ServerSentEvents path, which serializes events + // through the configured ASP.NET Core JsonSerializerOptions. + // + // Agent Framework abstractions follow so that M.E.AI types are handled via its resolver. + chain.Insert(0, AGUIJsonUtilities.DefaultTypeInfoResolver); + chain.Insert(1, AgentAbstractionsJsonUtilities.DefaultOptions.TypeInfoResolver!); } } diff --git a/dotnet/src/Microsoft.Agents.AI.Hosting.OpenAI/ChatCompletions/AIAgentChatCompletionsProcessor.cs b/dotnet/src/Microsoft.Agents.AI.Hosting.OpenAI/ChatCompletions/AIAgentChatCompletionsProcessor.cs index f7bfef9ce72..b70932b13d5 100644 --- a/dotnet/src/Microsoft.Agents.AI.Hosting.OpenAI/ChatCompletions/AIAgentChatCompletionsProcessor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Hosting.OpenAI/ChatCompletions/AIAgentChatCompletionsProcessor.cs @@ -1,6 +1,7 @@ // Copyright (c) Microsoft. All rights reserved. using System; +using System.Buffers; using System.Collections.Generic; using System.Linq; using System.Net.ServerSentEvents; @@ -79,14 +80,27 @@ public Task ExecuteAsync(HttpContext httpContext) destination: response.Body, itemFormatter: (sseItem, bufferWriter) => { + var chunk = sseItem.Data; + + // A null payload is the end-of-stream sentinel from GetStreamingChunksAsync. + // It is written through the formatter rather than appended to the response body + // so that SseFormatter stays the single owner of the "data: " prefix and the + // blank-line frame terminator; duplicating that framing here would let the two + // representations drift apart. + if (chunk is null) + { + bufferWriter.Write("[DONE]"u8); + return; + } + using var writer = new Utf8JsonWriter(bufferWriter); - JsonSerializer.Serialize(writer, sseItem.Data, ChatCompletionsJsonContext.Default.ChatCompletionChunk); + JsonSerializer.Serialize(writer, chunk, ChatCompletionsJsonContext.Default.ChatCompletionChunk); writer.Flush(); }, cancellationToken); } - private async IAsyncEnumerable> GetStreamingChunksAsync([EnumeratorCancellation] CancellationToken cancellationToken = default) + private async IAsyncEnumerable> GetStreamingChunksAsync([EnumeratorCancellation] CancellationToken cancellationToken = default) { // The Unix timestamp (in seconds) of when the chat completion was created. Each chunk has the same timestamp. DateTimeOffset? createdAt = null; @@ -167,6 +181,18 @@ private async IAsyncEnumerable> GetStreamingChunksA yield return new(chunk); } + + // The OpenAI wire format ends a streaming chat completion with a literal + // "data: [DONE]" frame, and consumers that treat that sentinel -- rather than + // end-of-body -- as the completion signal cannot recognize the stream as finished + // without it. This repo ships one such consumer: SseResponseIdCapture in the DevUI + // Aspire integration matches "[DONE]"u8 explicitly. + // + // Emitted after the loop so it only follows a stream that ran to completion: if the + // agent throws, or the caller aborts the request, the exception propagates out of the + // enumerator above and no terminator is written. A client must never be able to read a + // truncated stream as a complete one. + yield return new(null); } } } diff --git a/dotnet/src/Microsoft.Agents.AI.Mem0/Mem0Provider.cs b/dotnet/src/Microsoft.Agents.AI.Mem0/Mem0Provider.cs index 8be799ac1a3..b3ca66b6042 100644 --- a/dotnet/src/Microsoft.Agents.AI.Mem0/Mem0Provider.cs +++ b/dotnet/src/Microsoft.Agents.AI.Mem0/Mem0Provider.cs @@ -174,7 +174,7 @@ protected override async ValueTask> ProvideMessagesAsyn { throw; } - catch (Exception ex) + catch (Exception ex) when (ex is not OperationCanceledException || !cancellationToken.IsCancellationRequested) { if (this._logger?.IsEnabled(LogLevel.Error) is true) { @@ -206,7 +206,7 @@ await this.PersistMessagesAsync( .Concat(context.ResponseMessages ?? []), cancellationToken).ConfigureAwait(false); } - catch (Exception ex) + catch (Exception ex) when (ex is not OperationCanceledException || !cancellationToken.IsCancellationRequested) { if (this._logger?.IsEnabled(LogLevel.Error) is true) { diff --git a/dotnet/src/Microsoft.Agents.AI.Purview/README.md b/dotnet/src/Microsoft.Agents.AI.Purview/README.md index 5f7ee3d9b2f..f89546be2fd 100644 --- a/dotnet/src/Microsoft.Agents.AI.Purview/README.md +++ b/dotnet/src/Microsoft.Agents.AI.Purview/README.md @@ -381,7 +381,8 @@ disables enforcement for every error, not just transient ones. Every content item on a message is submitted for evaluation, not just its text: `DataContent` is sent as Purview binary content, and `FunctionCallContent`, `FunctionResultContent` and other structured content are serialized to text. Only `UsageContent` is skipped, because it carries token counts rather -than user data. +than user data. Text annotations such as citations, `ErrorContent.Details` and `DataContent.Name` +are submitted as additional text entries. ### Remote references are not dereferenced diff --git a/dotnet/src/Microsoft.Agents.AI.Purview/ScopedContentProcessor.cs b/dotnet/src/Microsoft.Agents.AI.Purview/ScopedContentProcessor.cs index a456f2d7891..2848d97db93 100644 --- a/dotnet/src/Microsoft.Agents.AI.Purview/ScopedContentProcessor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Purview/ScopedContentProcessor.cs @@ -278,11 +278,39 @@ private static List MapMessageContents(ChatMessage message) { mapped.Add(purviewContent); } + + AddSupplementalContent(content, mapped); } return mapped; } + /// + /// Add entries for user or model supplied data that does not carry: + /// annotations (for example citations), error details and the name of a data item. + /// + private static void AddSupplementalContent(AIContent content, List mapped) + { + switch (content) + { + case TextContent or TextReasoningContent when content.Annotations is { Count: > 0 }: + foreach (AIAnnotation annotation in content.Annotations) + { + mapped.Add(new PurviewTextContent(JsonSerializer.Serialize(annotation, AIJsonUtilities.DefaultOptions.GetTypeInfo(annotation.GetType())))); + } + + break; + + case ErrorContent { Details: { Length: > 0 } details }: + mapped.Add(new PurviewTextContent(details)); + break; + + case DataContent { Name: { Length: > 0 } name }: + mapped.Add(new PurviewTextContent(name)); + break; + } + } + /// /// Map a single onto a Purview content item. /// diff --git a/dotnet/src/Microsoft.Agents.AI.Tools.Shell/DockerShellExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Tools.Shell/DockerShellExecutor.cs index a3b123e75b1..7a6206d9dfe 100644 --- a/dotnet/src/Microsoft.Agents.AI.Tools.Shell/DockerShellExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Tools.Shell/DockerShellExecutor.cs @@ -26,8 +26,12 @@ namespace Microsoft.Agents.AI.Tools.Shell; /// --cap-drop=ALL, --security-opt=no-new-privileges, memory and /// pids limits, --tmpfs /tmp). These are a best-effort starting point, /// NOT a guarantee: the actual isolation you get depends on the host kernel, -/// the container runtime, the image, and any caller-supplied -/// ExtraRunArgs. Do not rely on this tool as your sole defense against +/// the container runtime, the image, and the complete caller configuration. +/// must come only +/// from developer-controlled configuration, never users, model output, or +/// other untrusted sources; it can weaken or remove isolation. The model-facing +/// function accepts only commands and cannot choose Docker options. Do not +/// rely on this tool as your sole defense against /// untrusted input. Approval gating via is the /// primary safety control; pair it with the precautions you would normally /// apply when running adversarial code: review the model's output before @@ -92,7 +96,7 @@ public sealed class DockerShellExecutor : ShellExecutor private readonly int _pidsLimit; private readonly ContainerUser _user; private readonly bool _readOnlyRoot; - private readonly IReadOnlyList _extraRunArgs; + private readonly IReadOnlyList _unsafeExtraRunArgs; private readonly IReadOnlyDictionary _env; private readonly ShellPolicy _policy; private readonly TimeSpan? _timeout; @@ -125,6 +129,8 @@ public DockerShellExecutor(DockerShellExecutorOptions options) { throw new ArgumentOutOfRangeException(nameof(options), $"{nameof(options.MemoryBytes)} must be positive."); } + string[] unsafeExtraRunArgs = options.UnsafeExtraRunArgs is null ? [] : options.UnsafeExtraRunArgs.ToArray(); + ValidateUnsafeExtraRunArgs(unsafeExtraRunArgs); this._image = options.Image; this.ContainerName = options.ContainerName ?? GenerateContainerName(); @@ -137,7 +143,7 @@ public DockerShellExecutor(DockerShellExecutorOptions options) this._pidsLimit = options.PidsLimit; this._user = options.User ?? ContainerUser.Default; this._readOnlyRoot = options.ReadOnlyRoot; - this._extraRunArgs = options.ExtraRunArgs ?? []; + this._unsafeExtraRunArgs = unsafeExtraRunArgs; this._env = options.Environment ?? new Dictionary(); this._policy = options.Policy ?? new ShellPolicy(); this._timeout = options.Timeout; @@ -277,9 +283,8 @@ internal static string FormatMemoryBytes(long memoryBytes) => public override AIFunction AsAIFunction(string name = "run_shell", string? description = null, bool requireApproval = true) { description ??= - "Execute a single shell command inside an isolated Docker container and return its " + - "stdout, stderr, and exit code. The container has no network, no host filesystem access " + - "(except an optional read-only workspace mount), and runs as a non-root user. " + + "Execute a single shell command using the configured Docker container and return its " + + "stdout, stderr, and exit code. Container isolation depends on the application's complete configuration. " + (this._mode == ShellMode.Persistent ? "PERSISTENT MODE: a single long-lived container handles every call; cd and exported variables persist." : "STATELESS MODE: each call runs in a fresh container."); @@ -430,10 +435,7 @@ public static IReadOnlyList BuildExecArgv(string binary, string containe private async Task StartContainerAsync(CancellationToken cancellationToken) { - var argv = BuildRunArgv( - this.DockerBinary, this._image, this.ContainerName, this._user, this._network, - this._memoryBytes, this._pidsLimit, this._containerWorkdir, this._hostWorkdir, - this._mountReadonly, this._readOnlyRoot, this._env, this._extraRunArgs); + var argv = this.BuildRunArgvPersistent(); var (exit, _, stderr) = await RunDockerCommandAsync(argv, cancellationToken).ConfigureAwait(false); if (exit != 0) @@ -535,7 +537,7 @@ private async Task RunStatelessAsync(string command, CancellationTo TimedOut: timedOut); } - private List BuildRunArgvStateless(string perCallName) + internal List BuildRunArgvStateless(string perCallName) { var argv = new List { @@ -563,10 +565,28 @@ private List BuildRunArgvStateless(string perCallName) argv.Add("-e"); argv.Add($"{kv.Key}={kv.Value}"); } - argv.AddRange(this._extraRunArgs); + argv.AddRange(this._unsafeExtraRunArgs); return argv; } + internal IReadOnlyList BuildRunArgvPersistent() => + BuildRunArgv( + this.DockerBinary, this._image, this.ContainerName, this._user, this._network, + this._memoryBytes, this._pidsLimit, this._containerWorkdir, this._hostWorkdir, + this._mountReadonly, this._readOnlyRoot, this._env, this._unsafeExtraRunArgs); + + private static void ValidateUnsafeExtraRunArgs(string[] args) + { + for (var index = 0; index < args.Length; index++) + { + if (args[index] is null) + { + throw new ArgumentException( + $"{nameof(DockerShellExecutorOptions.UnsafeExtraRunArgs)} contains a null token at index {index}."); + } + } + } + private async Task BestEffortKillContainerAsync(string containerName) { try diff --git a/dotnet/src/Microsoft.Agents.AI.Tools.Shell/DockerShellExecutorOptions.cs b/dotnet/src/Microsoft.Agents.AI.Tools.Shell/DockerShellExecutorOptions.cs index 4211ac6a2f3..cc4e9e97d6a 100644 --- a/dotnet/src/Microsoft.Agents.AI.Tools.Shell/DockerShellExecutorOptions.cs +++ b/dotnet/src/Microsoft.Agents.AI.Tools.Shell/DockerShellExecutorOptions.cs @@ -52,8 +52,16 @@ public sealed class DockerShellExecutorOptions /// When (the default), the container root filesystem is read-only. public bool ReadOnlyRoot { get; set; } = true; - /// Additional args appended to docker run. - public IReadOnlyList? ExtraRunArgs { get; set; } + /// + /// Trusted application-supplied options appended verbatim to docker run. + /// Set this only from developer-controlled configuration; never use values + /// from users, model output, or other untrusted sources. These options can + /// weaken or completely remove container isolation. Review every option + /// carefully. In particular, avoid --privileged, --network=host, + /// host-path volume mounts, and added capabilities unless the application + /// explicitly requires and secures them. + /// + public IReadOnlyList? UnsafeExtraRunArgs { get; set; } /// Environment variables passed via -e to every command. public IReadOnlyDictionary? Environment { get; set; } diff --git a/dotnet/src/Microsoft.Agents.AI.Tools.Shell/ShellExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Tools.Shell/ShellExecutor.cs index 957b7fd657b..09731286f25 100644 --- a/dotnet/src/Microsoft.Agents.AI.Tools.Shell/ShellExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Tools.Shell/ShellExecutor.cs @@ -14,8 +14,10 @@ namespace Microsoft.Agents.AI.Tools.Shell; /// /// runs commands directly on the host (no /// isolation; approval-in-the-loop is the security boundary). -/// runs them inside a container with resource -/// limits, network isolation, and a non-root user. +/// runs them inside a configured container; +/// its default profile applies resource limits, network isolation, and a +/// non-root user, but effective isolation depends on the complete application +/// configuration. /// /// /// This is an abstract class rather than an interface so the surface can be diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative.Mcp/DefaultMcpToolHandler.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative.Mcp/DefaultMcpToolHandler.cs index 61aedec347f..9bd67e55eb4 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative.Mcp/DefaultMcpToolHandler.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative.Mcp/DefaultMcpToolHandler.cs @@ -104,6 +104,21 @@ public async Task InvokeToolAsync( ThrowIfListToolsArgumentsSpecified(arguments); } + if (headers is not null) + { + foreach (KeyValuePair header in headers) + { + HttpHeaderValidation.ValidateNoProhibitedCharacters( + header.Key, + nameof(headers), + "HTTP header name contains invalid characters."); + HttpHeaderValidation.ValidateNoProhibitedCharacters( + header.Value, + nameof(headers), + "HTTP header value contains invalid characters."); + } + } + if (this._httpClientProvider is not null) { TaskCompletionSource invocationCompleted = new(TaskCreationOptions.RunContinuationsAsynchronously); diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative.Mcp/Microsoft.Agents.AI.Workflows.Declarative.Mcp.csproj b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative.Mcp/Microsoft.Agents.AI.Workflows.Declarative.Mcp.csproj index 08738266c09..0bb04cc608e 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative.Mcp/Microsoft.Agents.AI.Workflows.Declarative.Mcp.csproj +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative.Mcp/Microsoft.Agents.AI.Workflows.Declarative.Mcp.csproj @@ -7,6 +7,7 @@ true + true true true true diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/DeclarativeWorkflowJsonOptions.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/DeclarativeWorkflowJsonOptions.cs index 61e38a3d352..b6b7ec7f244 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/DeclarativeWorkflowJsonOptions.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/DeclarativeWorkflowJsonOptions.cs @@ -63,6 +63,7 @@ private static JsonSerializerOptions CreateDefaultOptions() [JsonSerializable(typeof(ExternalInputResponse))] [JsonSerializable(typeof(UnassignedValue))] [JsonSerializable(typeof(List))] + [JsonSerializable(typeof(Dictionary))] // TypeInfoPropertyName disambiguates the two ApprovalSnapshot records that share a simple name. [JsonSerializable(typeof(Dictionary), TypeInfoPropertyName = "DictionaryStringFunctionApprovalSnapshot")] diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/IWorkflowContextExtensions.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/IWorkflowContextExtensions.cs index f7b2bfce695..f233d937921 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/IWorkflowContextExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/IWorkflowContextExtensions.cs @@ -82,6 +82,7 @@ public static async ValueTask QueueConversationUpdateAsync(this IWorkflowContext if (isExternal) { + conversation = FormulaValue.NewRecordFromFields(conversation.Fields); conversation.UpdateField("Id", FormulaValue.New(conversationId)); await context.QueueSystemUpdateAsync(SystemScope.Names.Conversation, conversation, cancellationToken).ConfigureAwait(false); await context.QueueSystemUpdateAsync(SystemScope.Names.ConversationId, FormulaValue.New(conversationId), cancellationToken).ConfigureAwait(false); diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/ActionExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/ActionExecutor.cs index cf636effaf8..2f186c27853 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/ActionExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/ActionExecutor.cs @@ -64,6 +64,7 @@ protected ActionExecutor(string id, FormulaSession session) : base(id) { this._session = session; + this.RegisterCheckpointRestoringCallback(session.State, session.State.RestoreCheckpointAsync); } /// diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/IWorkflowContextExtensions.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/IWorkflowContextExtensions.cs index 3217ea774af..498840c8a9a 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/IWorkflowContextExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/IWorkflowContextExtensions.cs @@ -145,6 +145,11 @@ public static async ValueTask> FormatTemplateWithSensit /// The expression to evaluate. /// A token that propagates notification when operation should be canceled. /// The evaluated expression value and its sensitivity metadata. + /// + /// Callers must preserve the sensitivity metadata when storing the result and reject sensitive + /// values before using them for output or control-flow decisions. Use + /// when sensitivity metadata does not need to be propagated. + /// public static async ValueTask> EvaluateValueWithSensitivityAsync(this IWorkflowContext context, string expression, CancellationToken cancellationToken = default) { WorkflowFormulaState state = await context.GetStateAsync(cancellationToken).ConfigureAwait(false); diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/RootExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/RootExecutor.cs index 3a18a06c948..87266b24fac 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/RootExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/RootExecutor.cs @@ -26,7 +26,8 @@ public abstract class RootExecutor : Executor, IResettableExecut private readonly bool _allowProcessEnvironmentVariableFallback; private readonly FrozenSet _allowedEnvironmentVariables; - private string? _conversationId; + private readonly string? _conversationId; + private string? _generatedConversationId; /// /// Get the shared formula session to provide to workflow instances. @@ -48,14 +49,18 @@ protected RootExecutor(string id, DeclarativeWorkflowOptions options, Func public ValueTask ResetAsync() { + this._state.Reset(); + this._generatedConversationId = null; return default; } @@ -67,13 +72,22 @@ public override async ValueTask HandleAsync(TInput message, IWorkflowContext con ChatMessage input = (this._inputTransform ?? DefaultInputTransform).Invoke(message); - if (string.IsNullOrWhiteSpace(this._conversationId)) + string? conversationId = declarativeContext.GetWorkflowConversation(); + if (string.IsNullOrWhiteSpace(conversationId)) { - this._conversationId = await this._agentProvider.CreateConversationAsync(cancellationToken).ConfigureAwait(false); + conversationId = this._conversationId; } - await declarativeContext.QueueConversationUpdateAsync(this._conversationId, isExternal: true, cancellationToken).ConfigureAwait(false); + if (string.IsNullOrWhiteSpace(conversationId)) + { + if (string.IsNullOrWhiteSpace(this._generatedConversationId)) + { + this._generatedConversationId = await this._agentProvider.CreateConversationAsync(cancellationToken).ConfigureAwait(false); + } + conversationId = this._generatedConversationId; + } + await declarativeContext.QueueConversationUpdateAsync(conversationId, isExternal: true, cancellationToken).ConfigureAwait(false); - ChatMessage inputMessage = await this._agentProvider.CreateMessageAsync(this._conversationId, input, cancellationToken).ConfigureAwait(false); + ChatMessage inputMessage = await this._agentProvider.CreateMessageAsync(conversationId, input, cancellationToken).ConfigureAwait(false); // Use the original input for System.LastMessage to ensure Text is preserved (the // service may strip text on round-trip), but substitute server-side media references diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ClearAllVariablesExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ClearAllVariablesExecutor.cs index a0171488e0e..1b78856bb6a 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ClearAllVariablesExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ClearAllVariablesExecutor.cs @@ -17,7 +17,7 @@ internal sealed class ClearAllVariablesExecutor(ClearAllVariables model, Workflo { EvaluationResult variablesResult = this.Evaluator.GetValue(this.Model.Variables); - string? scope = variablesResult.Value.Value switch + string? scope = this.GetNonSensitiveValue(variablesResult, "variable scope").Value switch { VariablesToClear.AllGlobalVariables => VariableScopeNames.Global, VariablesToClear.ConversationScopedVariables => WorkflowFormulaState.DefaultScopeName, diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ConditionGroupExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ConditionGroupExecutor.cs index f653018f4dd..c8b79856dac 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ConditionGroupExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ConditionGroupExecutor.cs @@ -60,7 +60,7 @@ public bool IsElse(object? message) } EvaluationResult expressionResult = this.Evaluator.GetValue(conditionItem.Condition); - if (expressionResult.Value) + if (this.GetNonSensitiveValue(expressionResult, "condition")) { return Steps.Item(this.Model, conditionItem); } diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ForeachExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ForeachExecutor.cs index d829f0ba8ae..252f0dd5c8d 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ForeachExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/ForeachExecutor.cs @@ -49,13 +49,14 @@ public ForeachExecutor(Foreach model, WorkflowFormulaState state) this._index = 0; EvaluationResult expressionResult = this.Evaluator.GetValue(this.Model.Items); - if (expressionResult.Value is TableDataValue tableValue) + DataValue items = this.GetNonSensitiveValue(expressionResult, "loop items"); + if (items is TableDataValue tableValue) { this._values = [.. tableValue.Values.Select(ToLoopValue)]; } else { - this._values = [expressionResult.Value.ToFormula()]; + this._values = [items.ToFormula()]; } this._sensitivity = expressionResult.Sensitivity; @@ -156,9 +157,12 @@ protected override async ValueTask OnCheckpointRestoredAsync(IWorkflowContext co return; } - this._values = [.. savedValues.Select(value => value.ToFormula())]; + SensitivityLevel sensitivity = + await context.ReadStateAsync(SensitivityStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); + this._values = [.. this.GetNonSensitiveValue(new EvaluationResult(savedValues, sensitivity), "loop items") + .Select(value => value.ToFormula())]; this._index = await context.ReadStateAsync(IndexStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); this.HasValue = await context.ReadStateAsync(HasValueStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); - this._sensitivity = await context.ReadStateAsync(SensitivityStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); + this._sensitivity = sensitivity; } } diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/HttpRequestExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/HttpRequestExecutor.cs index 6abcece5b50..94dfc256ac7 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/HttpRequestExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/HttpRequestExecutor.cs @@ -270,7 +270,7 @@ private string GetUrl() return null; } - long value = this.Evaluator.GetValue(this.Model.RequestTimeoutInMilliseconds).Value; + long value = this.GetRequestValue(this.Evaluator.GetValue(this.Model.RequestTimeoutInMilliseconds), "timeout"); return value > 0 ? TimeSpan.FromMilliseconds(value) : null; } diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/InvokeAzureAgentExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/InvokeAzureAgentExecutor.cs index b8b260e5cc0..a9aa6381dfd 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/InvokeAzureAgentExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/InvokeAzureAgentExecutor.cs @@ -127,7 +127,8 @@ private async ValueTask InvokeAgentAsync(IWorkflowContext context, IEnumerable @@ -40,6 +41,7 @@ internal sealed class InvokeFunctionToolExecutor( /// response is captured. /// private readonly ConcurrentDictionary _approvalSnapshots = new(StringComparer.Ordinal); + private readonly ConcurrentDictionary _autoSendSnapshots = new(StringComparer.Ordinal); private bool _hasApprovalRequiredInvocation; @@ -77,11 +79,13 @@ public static class Steps protected override async ValueTask ExecuteAsync(IWorkflowContext context, CancellationToken cancellationToken = default) { string functionName = this.GetFunctionName(); - bool requireApproval = this.GetRequireApproval(); + bool requireApproval = this.GetRequireApproval(functionName); + bool autoSend = this.GetAutoSendValue(); Dictionary? arguments = this.GetArguments(); // Per-invocation request id stamped on the outbound content. string requestId = Guid.NewGuid().ToString("N"); + this._autoSendSnapshots[requestId] = autoSend; // Create the function call content to send to the caller FunctionCallContent functionCall = new( @@ -128,7 +132,6 @@ public async ValueTask CaptureResponseAsync( ExternalInputResponse response, CancellationToken cancellationToken) { - bool autoSend = this.GetAutoSendValue(); string? conversationId = this.GetConversationId(); string? responseRequestId = response.RequestId; @@ -155,6 +158,8 @@ public async ValueTask CaptureResponseAsync( && IsCorrelatedResponse(r.CallId, responseRequestId)); } + bool autoSend = matchingResult is not null && this.GetResponseAutoSendValue(response); + // When the caller approved an approval-required function call but didn't execute it // locally (the hosted Foundry scenario, where mcp_approval_response is converted to a // ToolApprovalResponseContent only), invoke the registered AIFunction here so that the @@ -183,16 +188,21 @@ public async ValueTask CaptureResponseAsync( else if (!approval.Approved) { this._approvalSnapshots.TryRemove(approval.RequestId, out _); + this._autoSendSnapshots.TryRemove(approval.RequestId, out _); await this.AssignErrorAsync(context, "Function invocation was not approved by user.").ConfigureAwait(false); } - else if (this._approvalSnapshots.TryRemove(approval.RequestId, out ApprovalSnapshot? snapshot)) - { - matchingResult = await this.InvokeRegisteredFunctionAsync(approval.RequestId, snapshot, cancellationToken).ConfigureAwait(false); - approvedFunctionResult = matchingResult; - } else { - await this.AssignErrorAsync(context, "No pending approval matched the response.").ConfigureAwait(false); + autoSend = this.GetResponseAutoSendValue(response); + if (this._approvalSnapshots.TryRemove(approval.RequestId, out ApprovalSnapshot? snapshot)) + { + matchingResult = await this.InvokeRegisteredFunctionAsync(approval.RequestId, snapshot, cancellationToken).ConfigureAwait(false); + approvedFunctionResult = matchingResult; + } + else + { + await this.AssignErrorAsync(context, "No pending approval matched the response.").ConfigureAwait(false); + } } } else if (!this._approvalSnapshots.IsEmpty) @@ -246,6 +256,7 @@ await this.AssignAsync( // Drop the per-invocation entry now that the response side effects have been processed. this._pendingNonApprovalCallIds.TryRemove(matchingResult.CallId, out _); this._approvalSnapshots.TryRemove(matchingResult.CallId, out _); + this._autoSendSnapshots.TryRemove(matchingResult.CallId, out _); } // Completes the action after processing the function result. @@ -266,6 +277,7 @@ private IEnumerable GetSideEffectMessages(ExternalInputResponse res public override ValueTask ResetAsync() { this._approvalSnapshots.Clear(); + this._autoSendSnapshots.Clear(); this._hasApprovalRequiredInvocation = false; this._pendingNonApprovalCallIds.Clear(); return default; @@ -285,6 +297,8 @@ protected override async ValueTask OnCheckpointingAsync(IWorkflowContext context List pendingCopy = [.. this._pendingNonApprovalCallIds.Keys]; await context.QueueStateUpdateAsync(PendingCallIdsStateKey, pendingCopy, null, cancellationToken).ConfigureAwait(false); + Dictionary autoSendCopy = this._autoSendSnapshots.ToDictionary(kvp => kvp.Key, kvp => kvp.Value, StringComparer.Ordinal); + await context.QueueStateUpdateAsync(AutoSendSnapshotsStateKey, autoSendCopy, null, cancellationToken).ConfigureAwait(false); await base.OnCheckpointingAsync(context, cancellationToken).ConfigureAwait(false); } @@ -297,6 +311,16 @@ protected override async ValueTask OnCheckpointingAsync(IWorkflowContext context protected override async ValueTask OnCheckpointRestoredAsync(IWorkflowContext context, CancellationToken cancellationToken = default) { await base.OnCheckpointRestoredAsync(context, cancellationToken).ConfigureAwait(false); + this._autoSendSnapshots.Clear(); + Dictionary? autoSendSnapshots = await context.ReadStateAsync>( + AutoSendSnapshotsStateKey, null, cancellationToken).ConfigureAwait(false); + if (autoSendSnapshots is not null) + { + foreach (KeyValuePair entry in autoSendSnapshots) + { + this._autoSendSnapshots[entry.Key] = entry.Value; + } + } this._approvalSnapshots.Clear(); Dictionary? snapshots = await context.ReadStateAsync>( ApprovalSnapshotStateKey, null, cancellationToken).ConfigureAwait(false); @@ -522,14 +546,39 @@ private string GetFunctionName() => return new FunctionResultContent(callId, serialized); } - private bool GetRequireApproval() + private bool GetRequireApproval(string functionName) + { + bool requireApproval = this.Model.RequireApproval is not null + && this.GetNonSensitiveValue(this.Evaluator.GetValue(this.Model.RequireApproval), "require approval"); + + return requireApproval + || agentProvider.Functions?.FirstOrDefault( + f => string.Equals(f.Name, functionName, StringComparison.Ordinal)) + ?.GetService() is not null; + } + + private bool GetResponseAutoSendValue(ExternalInputResponse response) { - if (this.Model.RequireApproval is null) + AIContent[] contents = [.. response.Messages.SelectMany(message => message.Contents)]; + FunctionResultContent? result = contents.OfType() + .FirstOrDefault(r => this.IsCorrelatedPendingNonApprovalResult(r, response.RequestId)); + if (result is not null) + { + return this._autoSendSnapshots.TryGetValue(result.CallId, out bool resultAutoSend) + ? resultAutoSend + : this.GetAutoSendValue(); + } + + ToolApprovalResponseContent? approval = contents.OfType() + .FirstOrDefault(r => this._approvalSnapshots.ContainsKey(r.RequestId) && + IsCorrelatedResponse(r.RequestId, response.RequestId)); + if (approval is not null && this._autoSendSnapshots.TryGetValue(approval.RequestId, out bool approvalAutoSend)) { - return false; + return approvalAutoSend; } - return this.Evaluator.GetValue(this.Model.RequireApproval).Value; + // Older checkpoints and legacy responses have no captured setting. + return this.GetAutoSendValue(); } private bool GetAutoSendValue() @@ -540,7 +589,7 @@ private bool GetAutoSendValue() // default as autoSend = true (the historical behavior). if (this.Model.Output is { AutoSendIsDefaultValue: false } output) { - return this.Evaluator.GetValue(output.AutoSend).Value; + return this.GetNonSensitiveValue(this.Evaluator.GetValue(output.AutoSend), "auto send"); } return true; diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/InvokeMcpToolExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/InvokeMcpToolExecutor.cs index 81a923d08ab..02dafb8ce2c 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/InvokeMcpToolExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/InvokeMcpToolExecutor.cs @@ -88,6 +88,7 @@ public static bool RequiresNothing(object? message) => string? serverLabel = this.GetServerLabel(); string toolName = this.GetToolName(); bool requireApproval = this.GetRequireApproval(); + bool autoSend = this.GetAutoSendValue(); Dictionary? arguments = this.GetArguments(); Dictionary? headers = this.GetHeaders(); string? conversationId = this.GetConversationId(); @@ -103,6 +104,7 @@ await this.RequestApprovalAsync( arguments, headers, connectionName, + autoSend, cancellationToken).ConfigureAwait(false); return default; } @@ -117,7 +119,7 @@ await this.RequestApprovalAsync( connectionName, cancellationToken).ConfigureAwait(false); - await this.ProcessResultAsync(context, resultContent, conversationId, cancellationToken).ConfigureAwait(false); + await this.ProcessResultAsync(context, resultContent, conversationId, autoSend, cancellationToken).ConfigureAwait(false); // Signal completion so the workflow routes via RequiresNothing await context.SendResultMessageAsync(this.Id, result: null, cancellationToken).ConfigureAwait(false); @@ -170,7 +172,7 @@ public async ValueTask CaptureResponseAsync( if (snapshot.ConnectionName is not null && !snapshot.ConnectionNameValidated) { this._approvalHeaderSnapshots.TryRemove(approvalResponse.RequestId, out _); - await this.RequestApprovalAsync(context, cancellationToken).ConfigureAwait(false); + await this.RequestApprovalAsync(context, snapshot.AutoSend, cancellationToken).ConfigureAwait(false); return; } @@ -181,7 +183,7 @@ public async ValueTask CaptureResponseAsync( } else if (snapshot.RequiresHeaderReapprovalAfterRestore || this.Model.Headers is { Count: > 0 }) { - await this.RequestApprovalAsync(context, cancellationToken).ConfigureAwait(false); + await this.RequestApprovalAsync(context, snapshot.AutoSend, cancellationToken).ConfigureAwait(false); return; } else @@ -190,6 +192,7 @@ public async ValueTask CaptureResponseAsync( } string? conversationId = this.GetConversationId(); + bool autoSend = snapshot.AutoSend ?? this.GetAutoSendValue(); McpServerToolResultContent resultContent = await mcpToolHandler.InvokeToolAsync( snapshot.ServerUrl, snapshot.ServerLabel, @@ -199,7 +202,7 @@ public async ValueTask CaptureResponseAsync( snapshot.ConnectionName, cancellationToken).ConfigureAwait(false); - await this.ProcessResultAsync(context, resultContent, conversationId, cancellationToken).ConfigureAwait(false); + await this.ProcessResultAsync(context, resultContent, conversationId, autoSend, cancellationToken).ConfigureAwait(false); await context.SendResultMessageAsync(this.Id, result: null, cancellationToken).ConfigureAwait(false); } @@ -263,7 +266,7 @@ protected override async ValueTask OnCheckpointRestoredAsync(IWorkflowContext co } } - private ValueTask RequestApprovalAsync(IWorkflowContext context, CancellationToken cancellationToken) + private ValueTask RequestApprovalAsync(IWorkflowContext context, bool? autoSend, CancellationToken cancellationToken) { return this.RequestApprovalAsync( context, @@ -273,6 +276,7 @@ private ValueTask RequestApprovalAsync(IWorkflowContext context, CancellationTok this.GetArguments(), this.GetHeaders(), this.GetConnectionName(), + autoSend ?? this.GetAutoSendValue(), cancellationToken); } @@ -284,6 +288,7 @@ private async ValueTask RequestApprovalAsync( Dictionary? arguments, Dictionary? headers, string? connectionName, + bool autoSend, CancellationToken cancellationToken) { string requestId = Guid.NewGuid().ToString("N"); @@ -291,7 +296,8 @@ private async ValueTask RequestApprovalAsync( this._approvalSnapshots[requestId] = new ApprovalSnapshot(serverUrl, serverLabel, toolName, arguments, connectionName) { ConnectionNameValidated = true, - RequiresHeaderReapprovalAfterRestore = this.Model.Headers is { Count: > 0 } + RequiresHeaderReapprovalAfterRestore = this.Model.Headers is { Count: > 0 }, + AutoSend = autoSend, }; this._approvalHeaderSnapshots[requestId] = new HeaderSnapshot(headers); @@ -310,10 +316,9 @@ private async ValueTask ProcessResultAsync( IWorkflowContext context, McpServerToolResultContent resultContent, string? conversationId, + bool autoSend, CancellationToken cancellationToken) { - bool autoSend = this.GetAutoSendValue(); - await this.AssignResultAsync(context, resultContent).ConfigureAwait(false); ChatMessage resultMessage = new(ChatRole.Tool, resultContent.Outputs); @@ -442,7 +447,7 @@ private bool GetRequireApproval() return false; } - return this.Evaluator.GetValue(this.Model.RequireApproval).Value; + return this.GetNonSensitiveValue(this.Evaluator.GetValue(this.Model.RequireApproval), "require approval"); } private bool GetAutoSendValue() @@ -453,7 +458,7 @@ private bool GetAutoSendValue() // default as autoSend = true (the historical behavior). if (this.Model.Output is { AutoSendIsDefaultValue: false } output) { - return this.Evaluator.GetValue(output.AutoSend).Value; + return this.GetNonSensitiveValue(this.Evaluator.GetValue(output.AutoSend), "auto send"); } return true; @@ -533,6 +538,8 @@ internal sealed record ApprovalSnapshot( Dictionary? Arguments, string? ConnectionName) { + public bool? AutoSend { get; init; } + public bool ConnectionNameValidated { get; init; } public bool RequiresHeaderReapprovalAfterRestore { get; init; } diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/QuestionExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/QuestionExecutor.cs index dacdb9151f6..b4d70783715 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/QuestionExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/QuestionExecutor.cs @@ -49,11 +49,11 @@ public static bool IsComplete(object? message) // Snapshot prior-execution state before we mutate it below so the SkipQuestionMode // evaluation reflects whether this is the first time the action has run. bool hasExecutedPreviously = await this._hasExecuted.ReadAsync(context).ConfigureAwait(false); - bool proceed = this.Evaluator.GetValue(this.Model.AlwaysPrompt).Value; + bool proceed = this.GetNonSensitiveValue(this.Evaluator.GetValue(this.Model.AlwaysPrompt), "always prompt"); if (!proceed) { - SkipQuestionMode mode = this.Evaluator.GetValue(this.Model.SkipQuestionMode).Value; + SkipQuestionMode mode = this.GetNonSensitiveValue(this.Evaluator.GetValue(this.Model.SkipQuestionMode), "skip question mode"); proceed = mode switch { @@ -159,7 +159,7 @@ public async ValueTask CompleteAsync(IWorkflowContext context, ActionExecutorRes private async ValueTask PromptAsync(IWorkflowContext context, int actualCount, CancellationToken cancellationToken) { - long repeatCount = this.Evaluator.GetValue(this.Model.RepeatCount).Value; + long repeatCount = this.GetNonSensitiveValue(this.Evaluator.GetValue(this.Model.RepeatCount), "repeat count"); if (actualCount >= repeatCount) { EvaluationResult defaultValue = new(DataValue.Blank(), SensitivityLevel.None); diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/RetrieveConversationMessagesExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/RetrieveConversationMessagesExecutor.cs index af80bfbe98b..136d78d5ab5 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/RetrieveConversationMessagesExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/RetrieveConversationMessagesExecutor.cs @@ -44,7 +44,7 @@ internal sealed class RetrieveConversationMessagesExecutor(RetrieveConversationM private int? GetLimit() { - long limit = this.Evaluator.GetValue(this.Model.Limit).Value; + long limit = this.GetNonSensitiveValue(this.Evaluator.GetValue(this.Model.Limit), "message limit"); return Convert.ToInt32(Math.Min(limit, 100)); } @@ -60,7 +60,8 @@ internal sealed class RetrieveConversationMessagesExecutor(RetrieveConversationM private bool IsDescending() { - AgentMessageSortOrderWrapper sortOrderWrapper = this.Evaluator.GetValue(this.Model.SortOrder).Value; + AgentMessageSortOrderWrapper sortOrderWrapper = this.GetNonSensitiveValue( + this.Evaluator.GetValue(this.Model.SortOrder), "message sort order"); return sortOrderWrapper.Value == AgentMessageSortOrder.NewestFirst; } diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/PowerFx/WorkflowExpressionEngine.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/PowerFx/WorkflowExpressionEngine.cs index eb0232d1b0f..b2a5f00fb8c 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/PowerFx/WorkflowExpressionEngine.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/PowerFx/WorkflowExpressionEngine.cs @@ -3,6 +3,7 @@ using System; using System.Collections.Generic; using System.Collections.Immutable; +using System.Diagnostics; using System.Linq; using Microsoft.Agents.AI.Workflows.Declarative.Extensions; using Microsoft.Agents.ObjectModel; @@ -107,7 +108,7 @@ private EvaluationResult Evaluate(BoolExpression expression) if (expressionResult.Value is BlankValue) { - return new EvaluationResult(default, SensitivityLevel.None); + return new EvaluationResult(default, expressionResult.Sensitivity); } if (expressionResult.Value is not BooleanValue formulaValue) @@ -327,39 +328,65 @@ private EvaluationResult EvaluateScope(ExpressionBase expression) expression.VariableReference?.ToString() : expression.ExpressionText; + ImmutableArray sensitiveReferences = this.GetSensitiveReferences(expression); + SensitivityLevel sensitivity = sensitiveReferences.IsEmpty ? SensitivityLevel.None : SensitivityLevel.Sensitive; FormulaValue result = this._state.Engine.Eval(expressionText, options: this._parserOptions); + if (sensitivity == SensitivityLevel.Sensitive && ContainsError(result)) + { + Trace.TraceWarning( + "Expression evaluation returned a blank result for references: {0}.", + string.Join(", ", sensitiveReferences)); + return new(FormulaValue.NewBlank(result.Type), sensitivity); + } + if (result is ErrorValue errorValue) { throw new DeclarativeActionException(errorValue.Format()); } - return new(result, this.GetSensitivity(expression)); + return new(result, sensitivity); } - private SensitivityLevel GetSensitivity(ExpressionBase expression) + private static bool ContainsError(FormulaValue value) => + value switch + { + ErrorValue => true, + RecordValue recordValue => recordValue.OriginalFields.Any(field => ContainsError(field.Value)), + TableValue tableValue => tableValue.Rows.Any(row => row.IsError || (row.IsValue && ContainsError(row.Value))), + _ => false, + }; + + private ImmutableArray GetSensitiveReferences(ExpressionBase expression) { if (expression.VariableReference is { VariableName: string variableName }) { - return GetReferenceSensitivity(expression.VariableReference.NamespaceAlias, variableName); + return GetReferenceSensitivity(expression.VariableReference.NamespaceAlias, variableName) == SensitivityLevel.Sensitive + ? [expression.VariableReference.ToString()] + : []; } string? expressionText = expression.ExpressionText; if (string.IsNullOrWhiteSpace(expressionText)) { - return SensitivityLevel.None; + return []; } CheckResult checkResult = this._state.Engine.Check(expressionText, options: this._parserOptions); checkResult.ThrowOnErrors(); - SensitivityLevel sensitivity = SensitivityLevel.None; + HashSet sensitiveReferences = new(StringComparer.Ordinal); foreach ((string? ScopeName, string VariableName) reference in GetVariableReferences(checkResult.Parse.Root)) { - sensitivity = MaxSensitivity(sensitivity, GetReferenceSensitivity(reference.ScopeName, reference.VariableName)); + if (GetReferenceSensitivity(reference.ScopeName, reference.VariableName) == SensitivityLevel.Sensitive) + { + sensitiveReferences.Add(reference.ScopeName is null + ? reference.VariableName + : $"{reference.ScopeName}.{reference.VariableName}"); + } } - return sensitivity; + return [.. sensitiveReferences]; SensitivityLevel GetReferenceSensitivity(string? scopeName, string variableName) => scopeName is null && VariableScopeNames.IsValidName(variableName) diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/PowerFx/WorkflowFormulaState.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/PowerFx/WorkflowFormulaState.cs index 87f726a77e0..19af8f95834 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/PowerFx/WorkflowFormulaState.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/PowerFx/WorkflowFormulaState.cs @@ -31,6 +31,7 @@ internal sealed class WorkflowFormulaState private const string SensitivityScopePrefix = "__Microsoft_Agents_AI_Workflows_Declarative_Sensitivity:"; private readonly Dictionary _scopes; + private readonly FrozenSet _restorableEnvironmentVariables; private Dictionary _initialScopes; @@ -42,9 +43,10 @@ internal sealed class WorkflowFormulaState public bool AllowsSideEffects { get; } - public WorkflowFormulaState(RecalcEngine engine, bool allowsSideEffects = false) + public WorkflowFormulaState(RecalcEngine engine, bool allowsSideEffects = false, IEnumerable? restorableEnvironmentVariables = null) { this._scopes = VariableScopeNames.AllScopes.ToDictionary(scopeName => GetScopeName(scopeName), _ => new WorkflowScope()); + this._restorableEnvironmentVariables = (restorableEnvironmentVariables ?? []).ToFrozenSet(StringComparer.Ordinal); this._initialScopes = this.CreateScopeSnapshot(); this.Engine = engine; @@ -112,25 +114,38 @@ public void Reset() this.Bind(); } - public async ValueTask RestoreAsync(IWorkflowContext context, CancellationToken cancellationToken) + public ValueTask RestoreAsync(IWorkflowContext context, CancellationToken cancellationToken) { if (!this.SetInitialized()) { - return; + return default; } + return this.RestoreCheckpointAsync(context, cancellationToken); + } + + public async ValueTask RestoreCheckpointAsync(IWorkflowContext context, CancellationToken cancellationToken) + { this.RestoreInitialState(); Stopwatch timer = Stopwatch.StartNew(); Debug.WriteLine("RESTORE CHECKPOINT - BEGIN"); await Task.WhenAll(RestorableScopes.Select(scopeName => ReadScopeAsync(scopeName))).ConfigureAwait(false); + if (this._restorableEnvironmentVariables.Count > 0) + { + await ReadScopeAsync(VariableScopeNames.Environment, this._restorableEnvironmentVariables).ConfigureAwait(false); + } Debug.WriteLine($"RESTORE CHECKPOINT - COMPLETE [{timer.Elapsed}]"); - async Task ReadScopeAsync(string scopeName) + async Task ReadScopeAsync(string scopeName, FrozenSet? allowedKeys = null) { HashSet keys = await context.ReadStateKeysAsync(scopeName, cancellationToken).ConfigureAwait(false); foreach (string key in keys) { + if (allowedKeys?.Contains(key) == false) + { + continue; + } PortableValue? value = await context.ReadStateAsync(key, scopeName, cancellationToken).ConfigureAwait(false); SensitivityLevel sensitivity = await context.ReadStateAsync(key, GetSensitivityScopeName(scopeName), cancellationToken).ConfigureAwait(false); if (value is null) @@ -239,6 +254,6 @@ public WorkflowScope(IDictionary values) } } - public Dictionary Sensitivities { get; } = new(StringComparer.OrdinalIgnoreCase); + public Dictionary Sensitivities { get; } = new(StringComparer.Ordinal); } } diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/README.md b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/README.md index fcfb73ee1a2..7cfd8de1341 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/README.md +++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/README.md @@ -13,6 +13,49 @@ we've provided a console application that is able to execute any declarative wor ## Actions +### Control-flow input validation + +Control-flow expressions must evaluate to non-sensitive values. This applies to +conditions, loop items, question prompting and retry settings, approval settings, +automatic response sending, external-loop conditions, HTTP timeouts, +conversation-message limits and sort order, and variable-scope selection. +Invalid inputs raise a `DeclarativeActionException`; literal defaults and +non-sensitive expressions retain their existing behavior. + +Custom executors should use `EvaluateValueAsync` for control-flow +expressions. `EvaluateValueWithSensitivityAsync` is intended for +operations that preserve the returned sensitivity metadata when storing values, +not for discarding metadata and making decisions using only `Value`. + +Tool actions validate automatic-send settings before dispatch and retain the +evaluated setting for the matching response, including approval and checkpoint +resumption. Changes to workflow state while a request is pending do not change +that invocation's automatic-send behavior. +Replacement MCP approvals after restoration retain the same setting while +refreshing headers and revalidating connection names. +For JSON checkpoints, pass `DeclarativeWorkflowJsonOptions.Default` to +`CheckpointManager.CreateJson`; its source-generated context includes the +per-invocation automatic-send settings. +Function approval denials complete without evaluating automatic-send settings. +Older approved checkpoints without a captured setting still validate the current +setting before invoking the function. + +### Expression result handling + +Blank expression results retain their input sensitivity metadata. Evaluation +errors in sensitive expressions, including record fields and table rows, produce +a blank result with the same metadata so data assignments can continue. +Diagnostic warnings identify the referenced variable names, not their values. +Non-sensitive expression errors retain their existing exception behavior. + +### Function tool approval + +`InvokeFunctionTool` requests approval when `requireApproval` evaluates to `true` +or the matching function in `ResponseAgentProvider.Functions` exposes +`ApprovalRequiredAIFunction`. Omitting `requireApproval` or setting it to `false` +does not override the registered function's approval requirement. The workflow +resumes the registered invocation only after a matching approval response. + ### MCP session lifetime `DefaultMcpToolHandler` caches MCP sessions by server URL, label, connection name, @@ -58,6 +101,10 @@ on the server address. ### 🧩 State Management +Variable names are case-sensitive, matching Power Fx record fields. Differently +cased names retain independent values and metadata, including after checkpoint +restoration. + |Action|Description| |-|-| |**ClearAllVariables**|Resets all variables in the current context. Ensures a clean state before starting new logic or sessions. diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/AIAgentHostOptions.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/AIAgentHostOptions.cs index c981b5d8015..19033fe2f8b 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/AIAgentHostOptions.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/AIAgentHostOptions.cs @@ -43,5 +43,14 @@ public sealed class AIAgentHostOptions /// Gets or sets a value indicating whether incoming messages are automatically forwarded before new messages generated /// by the agent during its turn. /// + /// + /// Answers received through the workflow's tool-approval response handler are forwarded only after the agent + /// returns their completed function calls and results, regardless of this setting. The forwarded answers use + /// those completed calls rather than caller-supplied tool details and precede the results, so other agents can + /// match approval requests already forwarded in the conversation without executing the calls again. + /// Agents handling these answers must return the matching and + /// ; otherwise the host reports an error instead of forwarding an + /// uncompleted approval answer. + /// public bool ForwardIncomingMessages { get; set; } = true; } diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/Execution/FanOutEdgeRunner.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/Execution/FanOutEdgeRunner.cs index 3ff3469f1ff..e4bac5f3fb6 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/Execution/FanOutEdgeRunner.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/Execution/FanOutEdgeRunner.cs @@ -29,6 +29,10 @@ this.EdgeData.EdgeAssigner is null : this.EdgeData.EdgeAssigner(message, this.EdgeData.SinkIds.Count) .Select(i => this.EdgeData.SinkIds[i]); + // The assigner, or the target list itself, can name a target more than once, for example when two + // tags on a message route to the same executor. Deliver to each target once, in the order first named. + targetIds = targetIds.Distinct(StringComparer.Ordinal); + Executor[] result = await Task.WhenAll(targetIds.Where(IsValidTarget) .Select(tid => this.RunContext.EnsureExecutorAsync(tid, stepTracer) .AsTask())) diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/Execution/StateManager.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/Execution/StateManager.cs index 3e34797bf01..5b6fb3c0bd6 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/Execution/StateManager.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/Execution/StateManager.cs @@ -113,7 +113,7 @@ public ValueTask ReadOrInitStateAsync(string executorId, string? scopeName UpdateKey stateKey = new(scopeId, key); - T? result = defaultValueFactory != null ? defaultValueFactory() : default; + T? result = default; bool needsInit = false; // If there is executor-local state (from a queued update), read it first @@ -159,7 +159,8 @@ public ValueTask ReadOrInitStateAsync(string executorId, string? scopeName Debug.Assert(initOnDefault); - await this.WriteStateAsync(scopeId, key, defaultValueFactory()).ConfigureAwait(false); + result = defaultValueFactory(); + await this.WriteStateAsync(scopeId, key, result).ConfigureAwait(false); } return result; diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/Executor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/Executor.cs index 9f092e8e887..a89791b4244 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/Executor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/Executor.cs @@ -14,6 +14,7 @@ using Microsoft.Agents.AI.Workflows.Execution; using Microsoft.Agents.AI.Workflows.Observability; using Microsoft.Agents.AI.Workflows.Reflection; +using Microsoft.Shared.Diagnostics; namespace Microsoft.Agents.AI.Workflows; @@ -198,6 +199,11 @@ protected Executor(string id, ExecutorOptions? options = null, bool declareCross internal bool IsCrossRunShareable { get; } + private List<(object? SharedStateKey, Func Callback)>? _checkpointRestoringCallbacks; + + internal IReadOnlyList<(object? SharedStateKey, Func Callback)> CheckpointRestoringCallbacks => + this._checkpointRestoringCallbacks ?? []; + /// /// Gets the configuration options for the executor. /// @@ -346,6 +352,38 @@ protected internal virtual ValueTask InitializeAsync(IWorkflowContext context, C /// A ValueTask representing the asynchronous operation. protected internal virtual ValueTask OnCheckpointRestoredAsync(IWorkflowContext context, CancellationToken cancellationToken = default) => default; + /// + /// Registers state restoration that runs before checkpoint post-load hooks. + /// + /// + /// All registered callbacks across the workflow complete before any executor's + /// hook is invoked. Register callbacks during construction. + /// + /// The state restoration callback. + protected void RegisterCheckpointRestoringCallback(Func callback) + { + _ = Throw.IfNull(callback); + (this._checkpointRestoringCallbacks ??= []).Add((null, callback)); + } + + /// + /// Registers shared state restoration that runs once per checkpoint load before post-load hooks. + /// + /// + /// Registrations with the same key instance are invoked once across the workflow for each checkpoint load, + /// using the context of one registering executor. Shared state must use explicitly named scopes. + /// All restoration callbacks complete before any hook is invoked. + /// Register callbacks during construction. + /// + /// An identity shared by executors that restore the same state. + /// The shared state restoration callback. + protected void RegisterCheckpointRestoringCallback(object sharedStateKey, Func callback) + { + _ = Throw.IfNull(sharedStateKey); + _ = Throw.IfNull(callback); + (this._checkpointRestoringCallbacks ??= []).Add((sharedStateKey, callback)); + } + /// /// A set of s, representing the messages this executor can handle. /// diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/HandoffToolCallFilteringBehavior.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/HandoffToolCallFilteringBehavior.cs index a2d269278ef..3d4607e9d18 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/HandoffToolCallFilteringBehavior.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/HandoffToolCallFilteringBehavior.cs @@ -8,6 +8,7 @@ namespace Microsoft.Agents.AI.Workflows; /// Specifies the behavior for filtering and contents from /// s flowing through a handoff workflow. This can be used to prevent agents from seeing external /// tool calls. +/// When filtering removes tool content, messages left with only are also removed. /// public enum HandoffToolCallFilteringBehavior { diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/HandoffWorkflowBuilder.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/HandoffWorkflowBuilder.cs index bb88adfef8c..51d928b72e2 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/HandoffWorkflowBuilder.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/HandoffWorkflowBuilder.cs @@ -32,6 +32,11 @@ public sealed class HandoffWorkflowBuilder(AIAgent initialAgent) : HandoffWorkfl /// /// Provides a builder for specifying the handoff relationships between agents and building the resulting workflow. /// +/// +/// When control returns to an agent with its pending handoff result and no new user input, a participant-local +/// continuation prompt resumes the existing request without resubmitting the original user command. +/// The agent's session is retained, and the continuation prompt is not added to the shared conversation. +/// public class HandoffWorkflowBuilderCore : OrchestrationBuilderBase where TBuilder : HandoffWorkflowBuilderCore { @@ -135,6 +140,11 @@ public TBuilder EmitAgentResponseEvents(bool emitAgentResponseEvents = true) /// Sets the behavior for filtering and contents from /// s flowing through the handoff workflow. Defaults to . /// + /// + /// When control returns to a participant, its pending handoff result is preserved. If no new user request has + /// arrived, the latest user request is reissued to that participant with a fresh message identifier so it can + /// continue assisting. This participant-local request is not added to the shared workflow conversation. + /// /// The filtering behavior to apply. public TBuilder WithToolCallFilteringBehavior(HandoffToolCallFilteringBehavior behavior) { diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/InProc/InProcessRunnerContext.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/InProc/InProcessRunnerContext.cs index 353c38f25c9..058fdb6a669 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/InProc/InProcessRunnerContext.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/InProc/InProcessRunnerContext.cs @@ -402,15 +402,44 @@ async Task InvokeCheckpointingAsync(Task executorTask) } } - internal Task NotifyCheckpointLoadedAsync(CancellationToken cancellationToken = default) + internal async Task NotifyCheckpointLoadedAsync(CancellationToken cancellationToken = default) { this.CheckEnded(); - return Task.WhenAll(this._executors.Values.Select(InvokeCheckpointRestoredAsync)); + Executor[] executors = await Task.WhenAll(this._executors.Values).ConfigureAwait(false); + List sharedStateKeys = []; + List restorationTasks = []; + foreach (Executor executor in executors) + { + List> callbacks = []; + foreach (var registration in executor.CheckpointRestoringCallbacks) + { + if (registration.SharedStateKey is { } sharedStateKey) + { + if (sharedStateKeys.Any(key => ReferenceEquals(key, sharedStateKey))) + { + continue; + } + sharedStateKeys.Add(sharedStateKey); + } + callbacks.Add(registration.Callback); + } + restorationTasks.Add(RestoreStateAsync(executor, callbacks)); + } + // Shared state must finish restoring before any subclass post-load hook runs. + await Task.WhenAll(restorationTasks).ConfigureAwait(false); + await Task.WhenAll(executors.Select(InvokeCheckpointRestoredAsync)).ConfigureAwait(false); - async Task InvokeCheckpointRestoredAsync(Task executorTask) + async Task RestoreStateAsync(Executor executor, List> callbacks) + { + foreach (Func restore in callbacks) + { + await restore(this.BindWorkflowContext(executor.Id), cancellationToken).ConfigureAwait(false); + } + } + + async Task InvokeCheckpointRestoredAsync(Executor executor) { - Executor executor = await executorTask.ConfigureAwait(false); await executor.OnCheckpointRestoredAsync(this.BindWorkflowContext(executor.Id), cancellationToken).ConfigureAwait(false); } } diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net10.0/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net10.0/PublicAPI.Unshipped.txt index ab058de62d4..2d147854bf7 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net10.0/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net10.0/PublicAPI.Unshipped.txt @@ -1 +1,3 @@ #nullable enable +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(object! sharedStateKey, System.Func! callback) -> void +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(System.Func! callback) -> void diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net472/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net472/PublicAPI.Unshipped.txt index ab058de62d4..2d147854bf7 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net472/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net472/PublicAPI.Unshipped.txt @@ -1 +1,3 @@ #nullable enable +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(object! sharedStateKey, System.Func! callback) -> void +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(System.Func! callback) -> void diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net8.0/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net8.0/PublicAPI.Unshipped.txt index ab058de62d4..2d147854bf7 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net8.0/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net8.0/PublicAPI.Unshipped.txt @@ -1 +1,3 @@ #nullable enable +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(object! sharedStateKey, System.Func! callback) -> void +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(System.Func! callback) -> void diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net9.0/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net9.0/PublicAPI.Unshipped.txt index ab058de62d4..2d147854bf7 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net9.0/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/net9.0/PublicAPI.Unshipped.txt @@ -1 +1,3 @@ #nullable enable +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(object! sharedStateKey, System.Func! callback) -> void +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(System.Func! callback) -> void diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt index ab058de62d4..2d147854bf7 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt @@ -1 +1,3 @@ #nullable enable +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(object! sharedStateKey, System.Func! callback) -> void +Microsoft.Agents.AI.Workflows.Executor.RegisterCheckpointRestoringCallback(System.Func! callback) -> void diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/AIAgentHostExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/AIAgentHostExecutor.cs index 85ff6e40528..72090c72218 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/AIAgentHostExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/AIAgentHostExecutor.cs @@ -84,7 +84,7 @@ private ValueTask HandleUserInputResponseAsync( IWorkflowContext context, CancellationToken cancellationToken) { - if (!this._userInputHandler!.MarkRequestAsHandled(response.RequestId)) + if (!this._userInputHandler!.MarkRequestAsHandled(response.RequestId, out var request)) { throw new InvalidOperationException($"No pending ToolApprovalRequest found with id '{response.RequestId}'."); } @@ -93,13 +93,16 @@ private ValueTask HandleUserInputResponseAsync( // resumes can be processed in one invocation. return this.ProcessTurnMessagesAsync(async (pendingMessages, ctx, ct) => { - pendingMessages.Add(new ChatMessage(ChatRole.User, [response]) + ChatMessage responseMessage = new(ChatRole.User, [response]) { CreatedAt = DateTimeOffset.UtcNow, MessageId = Guid.NewGuid().ToString("N"), - }); + }; + pendingMessages.Add(responseMessage); - await this.ContinueTurnAsync(pendingMessages, ctx, this._currentTurnEmitEvents ?? false, ct).ConfigureAwait(false); + await this.ContinueTurnAsync( + pendingMessages, ctx, this._currentTurnEmitEvents ?? false, ct, + (responseMessage, response, request.ToolCall.CallId)).ConfigureAwait(false); // Clear the buffered turn messages because they were consumed by ContinueTurnAsync. return null; @@ -176,12 +179,23 @@ protected internal override async ValueTask OnCheckpointRestoredAsync(IWorkflowC || (this._functionCallHandler?.HasPendingRequests == true); // While we save this on the instance, we are not cross-run shareable, but as AgentBinding uses the factory pattern this is not an issue - private async ValueTask ContinueTurnAsync(List messages, IWorkflowContext context, bool emitEvents, CancellationToken cancellationToken) + private async ValueTask ContinueTurnAsync( + List messages, + IWorkflowContext context, + bool emitEvents, + CancellationToken cancellationToken, + (ChatMessage Message, ToolApprovalResponseContent Response, string CallId)? answeredApproval = null) { this._currentTurnEmitEvents = emitEvents; if (this._options.ForwardIncomingMessages) { - await context.SendMessageAsync(messages, cancellationToken).ConfigureAwait(false); + List incomingMessages = answeredApproval is { } answer + ? messages.Where(m => !ReferenceEquals(m, answer.Message)).ToList() + : messages; + if (incomingMessages.Count > 0) + { + await context.SendMessageAsync(incomingMessages, cancellationToken).ConfigureAwait(false); + } } IEnumerable filteredMessages = this._options.ReassignOtherAgentsAsUsers @@ -194,7 +208,15 @@ private async ValueTask ContinueTurnAsync(List messages, IWorkflowC // that are internal to this agent. Forwarding them to other agents in the workflow // causes invalid request errors when the receiving agent uses the Responses API, // because these item types are not valid as input items. - List forwardableMessages = FilterForwardableMessages(response.Messages).ToList(); + List forwardableMessages = FilterForwardableMessages(response.Messages); + if (answeredApproval is { } approval) + { + // Other agents received the approval request; they also need its answer before the tool result. + ChatMessage completedAnswer = approval.Message.Clone(); + completedAnswer.Contents = [CreateCompletedApprovalResponse(approval.Response, approval.CallId, response.Messages)]; + forwardableMessages.InsertRange(0, FilterForwardableMessages([completedAnswer])); + } + if (forwardableMessages.Count > 0) { await context.SendMessageAsync(forwardableMessages, cancellationToken) @@ -215,6 +237,62 @@ protected override ValueTask TakeTurnAsync(List messages, IWorkflow TurnExtensions.ShouldEmitStreamingEvents(turnTokenSetting: emitEvents, this._options.EmitAgentUpdateEvents), cancellationToken); + /// + /// Preserves the external approval decision while using tool details from the agent's completed output + /// rather than the caller's answer. Approval binding may have replaced those details with the saved request. + /// + private static ToolApprovalResponseContent CreateCompletedApprovalResponse( + ToolApprovalResponseContent answer, string callId, IList responseMessages) + { + FunctionCallContent? completedCall = null; + bool hasResult = false; + // The call id comes from the saved approval request, so caller-supplied tool details cannot + // select a different completed call. A rejection also produces a call/result pair. + foreach (var message in responseMessages) + { + foreach (var content in message.Contents) + { + if (content is FunctionCallContent call && call.CallId == callId) + { + completedCall = call; + } + else if (content is FunctionResultContent result && result.CallId == callId) + { + hasResult = true; + } + } + } + + if (completedCall is null || !hasResult) + { + // Do not fall back to the caller's tool details or forward an answer without its result: + // another agent could otherwise execute an untrusted or already handled call. + throw new InvalidOperationException( + $"The agent did not return a function call and result for approval request '{answer.RequestId}' with call id '{callId}'."); + } + + // Use a separate call so forwarding does not change the agent's output. Leave InformationalOnly + // false even if the completed call is informational: the answer must still match other agents' + // outstanding requests. The accompanying result prevents them from executing the call again. + FunctionCallContent copiedCall = new( + completedCall.CallId, completedCall.Name, + completedCall.Arguments is null ? null : new Dictionary(completedCall.Arguments)) + { + AdditionalProperties = completedCall.AdditionalProperties is null ? null : new(completedCall.AdditionalProperties), + RawRepresentation = completedCall.RawRepresentation, + Annotations = completedCall.Annotations is null ? null : new List(completedCall.Annotations), + }; + + // Only the tool details are replaced; retain the user's decision, reason, and response metadata. + return new ToolApprovalResponseContent(answer.RequestId, answer.Approved, copiedCall) + { + Reason = answer.Reason, + AdditionalProperties = answer.AdditionalProperties is null ? null : new(answer.AdditionalProperties), + RawRepresentation = answer.RawRepresentation, + Annotations = answer.Annotations is null ? null : new List(answer.Annotations), + }; + } + private async ValueTask InvokeAgentAsync(IEnumerable messages, IWorkflowContext context, bool emitUpdateEvents, CancellationToken cancellationToken = default) { AgentResponse response; diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/AIContentExternalHandler.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/AIContentExternalHandler.cs index 15203fd5dcb..2490b6bfb3a 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/AIContentExternalHandler.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/AIContentExternalHandler.cs @@ -72,9 +72,12 @@ public ValueTask ProcessRequestContentAsync(string id, TRequestContent requestCo public bool MarkRequestAsHandled(string id) { - return this._pendingRequests.TryRemove(id, out _); + return this.MarkRequestAsHandled(id, out _); } + public bool MarkRequestAsHandled(string id, [NotNullWhen(true)] out TRequestContent? request) + => this._pendingRequests.TryRemove(id, out request); + [MemberNotNullWhen(false, nameof(_portBinding))] private bool IsIntercepted => this._portBinding == null; diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffAgentExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffAgentExecutor.cs index d9503df7550..20c8f7e7fd0 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffAgentExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffAgentExecutor.cs @@ -55,7 +55,8 @@ internal struct AgentInvocationResult(AgentResponse agentResponse, string? hando internal record HandoffAgentHostState( HandoffState? IncomingState, - int ConversationBookmark) + int ConversationBookmark, + string? PendingHandoffCallId = null) { [MemberNotNullWhen(true, nameof(IncomingState))] [JsonIgnore] @@ -377,6 +378,24 @@ private ValueTask HandleFunctionResultAsync( : incomingMessages) .CopyWithAssistantToUserForOtherParticipants(this._agent.Name ?? this._agent.Id); + if (state.IncomingState.RequestedHandoffTargetAgentId is not null + && state.PendingHandoffCallId is not null + && !incomingMessages.Any(IsUserRequest) + && messagesForAgent.Any(message => message.Contents.OfType() + .Any(result => string.Equals(result.CallId, state.PendingHandoffCallId, StringComparison.Ordinal)))) + { + // Keep this prompt participant-local. Replaying the original command as a new request + // could repeat side effects already recorded in the retained agent session. + messagesForAgent.Add(new ChatMessage(ChatRole.User, + $"Control has returned after handoff call '{state.PendingHandoffCallId}'. " + + "Continue the existing user request using the conversation and completed tool results. " + + "This is a continuation, not a new request. Do not repeat actions that have already completed.") + { + MessageId = Guid.NewGuid().ToString("N"), + CreatedAt = DateTimeOffset.UtcNow, + }); + } + bool emitUpdateEvents = state.IncomingState!.ShouldEmitStreamingEvents(this._options.EmitAgentResponseUpdateEvents); AgentInvocationResult result = await this.InvokeAgentAsync(messagesForAgent, context, emitUpdateEvents, cancellationToken) .ConfigureAwait(false); @@ -387,6 +406,7 @@ private ValueTask HandleFunctionResultAsync( } int newConversationBookmark = state.ConversationBookmark; + string? pendingHandoffCallId = null; List? conversationSnapshot = null; await this._sharedStateRef.InvokeWithStateAsync( (sharedState, ctx, ct) => @@ -417,12 +437,13 @@ await this._sharedStateRef.InvokeWithStateAsync( } if (handoffCallResultMessage.Contents.Count != 1 || - handoffCallResultMessage.Contents[0] is not FunctionResultContent) + handoffCallResultMessage.Contents[0] is not FunctionResultContent handoffResult) { throw new InvalidOperationException("The Tool message in a handoff response must contain exactly one content item of type FunctionResultContent."); } _ = sharedState.Conversation.AddMessage(handoffCallResultMessage); + pendingHandoffCallId = handoffResult.CallId; // Reset this agent's autonomous-turn counter when it chooses to hand off, so that // if control returns to this agent later in the turn (e.g. via another handoff), @@ -451,7 +472,7 @@ await this._sharedStateRef.InvokeWithStateAsync( // happens if we have no outstanding requests. if (this.HasOutstandingRequests) { - return state with { ConversationBookmark = newConversationBookmark }; + return state with { ConversationBookmark = newConversationBookmark, PendingHandoffCallId = null }; } // Evaluate the termination condition (when configured and no handoff was requested) and stamp @@ -469,9 +490,12 @@ await this._sharedStateRef.InvokeWithStateAsync( // Reset the turn-local state; keep the conversation bookmark and the agent session so the // next invocation (handoff back, autonomous loop-back, or new user turn) resumes cleanly. - return state with { IncomingState = null, ConversationBookmark = newConversationBookmark }; + return state with { IncomingState = null, ConversationBookmark = newConversationBookmark, PendingHandoffCallId = pendingHandoffCallId }; } + private static bool IsUserRequest(ChatMessage message) + => message.Role == ChatRole.User && message.Contents.Any(content => content is not ToolApprovalResponseContent); + public override ValueTask HandleAsync(HandoffState message, IWorkflowContext context, CancellationToken cancellationToken = default) { return this.InvokeWithStateAsync(InvokeContinueTurnAsync, context, skipCache: false, cancellationToken); diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffMessagesFilter.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffMessagesFilter.cs index 2ca73ca3d82..0a1c7519ff9 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffMessagesFilter.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/Specialized/HandoffMessagesFilter.cs @@ -32,7 +32,7 @@ public IEnumerable FilterMessages(IEnumerable messages bool filterAllToolCalls = this._filteringBehavior == HandoffToolCallFilteringBehavior.All; - // The logic of filtering is fairly straightforward: We are only interested in FunctionCallContent and FunctionResponseContent. + // Filter selected function calls and results, including reasoning-only remnants of filtered messages. // We are going to assume that Handoff operates as follows: // * Each agent is only taking one turn at a time // * Each agent is taking a turn alone @@ -88,9 +88,11 @@ public IEnumerable FilterMessages(IEnumerable messages retainedContents.Add(content); } - if (retainedContents.Count == 0) + if (retainedContents.Count == 0 + || (retainedContents.Count < unfilteredMessage.Contents.Count + && retainedContents.TrueForAll(content => content is TextReasoningContent))) { - // message was fully filtered, skip it + // Reasoning alone cannot convey the filtered tool call to the receiving agent. continue; } diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/StatefulExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/StatefulExecutor.cs index d1d239506f3..3496cde7203 100644 --- a/dotnet/src/Microsoft.Agents.AI.Workflows/StatefulExecutor.cs +++ b/dotnet/src/Microsoft.Agents.AI.Workflows/StatefulExecutor.cs @@ -14,13 +14,16 @@ namespace Microsoft.Agents.AI.Workflows; /// /// Provides a base class for executors that maintain and manage state across multiple message handling operations. /// +/// +/// State is read from the current workflow context, including pending updates and restored checkpoints. +/// Derived executors with instance state must explicitly implement +/// to support resetting that state between runs. +/// /// The type of state associated with this Executor. public abstract class StatefulExecutor : Executor { private readonly Func _initialStateFactory; - private TState? _stateCache; - /// /// Initializes the executor with a unique id and an initial value for the state. /// @@ -52,28 +55,12 @@ protected StatefulExecutor(string id, /// Reads the state associated with this executor. If it is not initialized, it will be set to the initial state. /// /// The workflow context in which the executor executes. - /// Ignore the cached value, if any. State is not cached when running in Cross-Run Shareable - /// mode. + /// Retained for compatibility. State is always read from the workflow context. /// The to monitor for cancellation requests. /// The default is . /// - protected async ValueTask ReadStateAsync(IWorkflowContext context, bool skipCache = false, CancellationToken cancellationToken = default) - { - if (!skipCache && this._stateCache is not null) - { - return this._stateCache; - } - - TState? state = await context.ReadOrInitStateAsync(this.StateKey, this._initialStateFactory, this.Options.ScopeName, cancellationToken) - .ConfigureAwait(false); - - if (!context.ConcurrentRunsEnabled) - { - this._stateCache = state; - } - - return state; - } + protected ValueTask ReadStateAsync(IWorkflowContext context, bool skipCache = false, CancellationToken cancellationToken = default) + => context.ReadOrInitStateAsync(this.StateKey, this._initialStateFactory, this.Options.ScopeName, cancellationToken); /// /// Queues up an update to the executor's state. @@ -84,14 +71,7 @@ protected async ValueTask ReadStateAsync(IWorkflowContext context, bool /// The default is . /// protected ValueTask QueueStateUpdateAsync(TState state, IWorkflowContext context, CancellationToken cancellationToken = default) - { - if (!context.ConcurrentRunsEnabled) - { - this._stateCache = state; - } - - return context.QueueStateUpdateAsync(this.StateKey, state, this.Options.ScopeName, cancellationToken); - } + => context.QueueStateUpdateAsync(this.StateKey, state, this.Options.ScopeName, cancellationToken); /// /// Invokes an asynchronous operation that reads, updates, and persists workflow state associated with the specified @@ -100,55 +80,27 @@ protected ValueTask QueueStateUpdateAsync(TState state, IWorkflowContext context /// A delegate that receives the current state, workflow context, and cancellation token, /// and returns the updated state asynchronously. /// The workflow context in which the executor executes. - /// Ignore the cached value, if any. State is not cached when running in Cross-Run Shareable - /// mode. + /// Retained for compatibility. State is always read from the workflow context. /// The to monitor for cancellation requests. /// The default is . /// A ValueTask that represents the asynchronous operation. - protected async ValueTask InvokeWithStateAsync( + protected ValueTask InvokeWithStateAsync( Func> invocation, IWorkflowContext context, bool skipCache = false, CancellationToken cancellationToken = default) - { - if (!skipCache && !context.ConcurrentRunsEnabled) - { - if (this._stateCache is null) - { - this._stateCache = await context.ReadOrInitStateAsync(this.StateKey, this._initialStateFactory, this.Options.ScopeName, cancellationToken) - .ConfigureAwait(false); - } - - TState newState = await invocation(this._stateCache ?? this._initialStateFactory(), - context, - cancellationToken).ConfigureAwait(false) - ?? this._initialStateFactory(); - - await context.QueueStateUpdateAsync(this.StateKey, - newState, - this.Options.ScopeName, - cancellationToken).ConfigureAwait(false); - - this._stateCache = newState; - } - else - { - await context.InvokeWithStateAsync(invocation, - this.StateKey, - this._initialStateFactory, - this.Options.ScopeName, - cancellationToken) - .ConfigureAwait(false); - } - } + => context.InvokeWithStateAsync(invocation, + this.StateKey, + this._initialStateFactory, + this.Options.ScopeName, + cancellationToken); /// - protected virtual ValueTask ResetAsync() - { - this._stateCache = this._initialStateFactory(); - - return default; - } + /// + /// The base implementation has no instance state to reset and does not change persisted workflow state. + /// Derived executors can override this method to reset their own instance state. + /// + protected virtual ValueTask ResetAsync() => default; } /// diff --git a/dotnet/src/Microsoft.Agents.AI/AIContextProviderDecorators/AIContextProviderChatClientBuilderExtensions.cs b/dotnet/src/Microsoft.Agents.AI/AIContextProviderDecorators/AIContextProviderChatClientBuilderExtensions.cs index 1152c9843e8..af60bd65b9f 100644 --- a/dotnet/src/Microsoft.Agents.AI/AIContextProviderDecorators/AIContextProviderChatClientBuilderExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI/AIContextProviderDecorators/AIContextProviderChatClientBuilderExtensions.cs @@ -33,6 +33,20 @@ public static class AIContextProviderChatClientBuilderExtensions /// are retrieved from . An /// is thrown at invocation time if no run context is available. /// + /// + /// Providers can also be registered in other places, such as on the agent itself. The limitations below only apply to + /// providers registered on the chat client pipeline with this method. + /// + /// + /// Tools added by a provider registered this way are not supported when function invocation middleware is + /// registered on the agent (for example, with AIAgentBuilder.Use). Those tools are not guaranteed to go + /// through that middleware, so it cannot be relied on for security or policy checks on them. + /// + /// + /// Separately, tools added by a provider registered this way are only run when a + /// sits below this decorator in the pipeline. If it sits above, + /// it does not know about those tools and will not run them. + /// /// public static ChatClientBuilder UseAIContextProviders(this ChatClientBuilder builder, params AIContextProvider[] providers) { diff --git a/dotnet/src/Microsoft.Agents.AI/ChatClient/ApprovalNotRequiredFunctionBypassingChatClient.cs b/dotnet/src/Microsoft.Agents.AI/ChatClient/ApprovalNotRequiredFunctionBypassingChatClient.cs index aafcabc3c22..6bbfd9815f5 100644 --- a/dotnet/src/Microsoft.Agents.AI/ChatClient/ApprovalNotRequiredFunctionBypassingChatClient.cs +++ b/dotnet/src/Microsoft.Agents.AI/ChatClient/ApprovalNotRequiredFunctionBypassingChatClient.cs @@ -2,7 +2,6 @@ using System.Collections.Generic; using System.Diagnostics.CodeAnalysis; -using System.Linq; using System.Runtime.CompilerServices; using System.Threading; using System.Threading.Tasks; @@ -239,10 +238,10 @@ private bool TryGetSession([NotNullWhen(true)] out AgentSession? session) LogStaleAutoApprovalRejected(this._logger, (request.ToolCall as FunctionCallContent)?.Name ?? "unknown"); } - approvalResponses.Add(request.CreateResponse(approved: stillApprovalNotRequired)); + approvalResponses.Add(ToolApprovalHelpers.SnapshotRequest(request).CreateResponse(approved: stillApprovalNotRequired)); } - return (messages.Concat([new ChatMessage(ChatRole.User, approvalResponses)]), true); + return (ToolApprovalHelpers.PrepareApprovalMessages(messages, approvalResponses), true); } /// diff --git a/dotnet/src/Microsoft.Agents.AI/ChatClient/ApprovalResponseBindingChatClient.cs b/dotnet/src/Microsoft.Agents.AI/ChatClient/ApprovalResponseBindingChatClient.cs index 722130be726..ea5664c9f48 100644 --- a/dotnet/src/Microsoft.Agents.AI/ChatClient/ApprovalResponseBindingChatClient.cs +++ b/dotnet/src/Microsoft.Agents.AI/ChatClient/ApprovalResponseBindingChatClient.cs @@ -34,11 +34,25 @@ namespace Microsoft.Agents.AI; /// If a recorded pending request exists for the response's request id, the response's tool call is rebound to /// the recorded (model-originated) tool call, so the approved call always matches the surfaced request's tool name /// and arguments. The pending entry is then consumed so an approval is honored only once. -/// If no recorded pending request exists, the response (and any unrecorded approval request in the same -/// messages) is ignored, so only approvals tied to a genuine, framework-issued request take effect. +/// If no recorded pending request exists, the response is ignored, so only approvals tied to a genuine, +/// framework-issued request take effect. +/// Any recorded request left unanswered on the next run is automatically rejected, allowing the +/// conversation to continue without executing the unapproved tool. /// /// /// +/// Approval responses are grouped before new caller messages so the tool results generated by +/// precede later questions. The +/// objects inside approval requests and responses are copied before being passed to that client, which +/// changes their flags while processing approvals. +/// +/// +/// Generated rejection responses are returned to the caller before the tool-result messages, allowing +/// end-of-run history saving to record the decision as well as its result. Caller-supplied responses are not +/// returned again. In streaming runs, a generated rejection can be emitted before a later service call fails; +/// receiving that decision does not mean the run succeeded. +/// +/// /// The authority for an approval is always the state the framework itself recorded when it surfaced the request. /// An approval request that merely appears in the caller-supplied message history is never, by itself, proof /// that the framework asked a human to approve it; without this rule a caller could supply a fabricated request @@ -85,10 +99,15 @@ public override async Task GetResponseAsync( return await base.GetResponseAsync(messages, options, cancellationToken).ConfigureAwait(false); } - var (messagesToSend, hasPendingRequests) = this.ValidateInboundApprovalResponses(messages, session); + var (messagesToSend, hasPendingRequests, generatedRejections) = this.ValidateInboundApprovalResponses(messages, session); var response = await base.GetResponseAsync(messagesToSend, options, cancellationToken).ConfigureAwait(false); + if (generatedRejections is not null) + { + response.Messages = [generatedRejections, .. response.Messages]; + } + // The records are consumed only now that the run has succeeded, so a failed run leaves them intact and the // caller can supply the same approval response again. This runs before the requests surfaced by this run // are recorded, so it never discards those. @@ -118,7 +137,7 @@ public override async IAsyncEnumerable GetStreamingResponseA yield break; } - var (messagesToSend, hasPendingRequests) = this.ValidateInboundApprovalResponses(messages, session); + var (messagesToSend, hasPendingRequests, generatedRejections) = this.ValidateInboundApprovalResponses(messages, session); List? emitted = null; @@ -130,6 +149,14 @@ public override async IAsyncEnumerable GetStreamingResponseA try { + if (generatedRejections is not null) + { + yield return new ChatResponseUpdate(generatedRejections.Role, generatedRejections.Contents) + { + MessageId = generatedRejections.MessageId, + }; + } + await foreach (var update in base.GetStreamingResponseAsync(messagesToSend, options, cancellationToken).ConfigureAwait(false)) { foreach (var content in update.Contents) @@ -187,23 +214,30 @@ private bool TryGetSession([NotNullWhen(true)] out AgentSession? session) /// /// Rewrites the inbound messages so that each is bound to a known - /// , with its tool call rebound to the request's call when it differs. + /// saved in the session, using a copy of the saved request's tool call. /// A response with no known request is removed so that a forged approval cannot drive execution. + /// Recorded requests left unanswered are rejected unless their tool call already has a result. /// /// - /// Approval requests are never removed. They are legitimate model context, but they are not the authority - /// that an approval was requested, so they are forwarded unchanged whether or not a response was bound to - /// them. Dropping a response therefore leaves its request unanswered, and the run fails downstream in the - /// function invocation middleware. That is deliberate: a payload whose approval was rejected surfaces as an - /// error instead of silently continuing as though the call had never been requested. + /// A in the input messages is kept as conversation context, but only + /// a request saved in the session can authorize execution. Its is copied + /// before it reaches , which changes the call's + /// flag when processing an approval or rejection. + /// Copying prevents those changes from affecting the caller's original approval request after a failed run. + /// Approval responses for calls with an existing are preserved without + /// requiring a pending session record, since will not execute them again. + /// An input approval request still needs a matching response even if a function result is present. + /// This method does not repair history missing that response; only saved, unfinished requests are + /// automatically rejected. /// /// The inbound messages. /// The session holding the recorded pending approval requests. /// - /// The messages to send to the inner client, and whether the session held any recorded pending requests, which - /// the caller consumes once the inner call has succeeded. + /// The messages to send to the inner client, whether the session held any recorded pending requests + /// (consumed after the inner call succeeds), and a separate message of generated rejections to return + /// to the caller without exposing the function calls that the inner client changes. /// - private (IEnumerable Messages, bool HasPendingRequests) ValidateInboundApprovalResponses( + private (IEnumerable Messages, bool HasPendingRequests, ChatMessage? GeneratedRejections) ValidateInboundApprovalResponses( IEnumerable messages, AgentSession session) { @@ -233,6 +267,7 @@ private bool TryGetSession([NotNullWhen(true)] out AgentSession? session) HashSet? settledCallIds = null; bool hasResponse = false; + bool hasRequest = false; foreach (var message in messageList) { foreach (var content in message.Contents) @@ -245,22 +280,26 @@ private bool TryGetSession([NotNullWhen(true)] out AgentSession? session) { hasResponse = true; } + else if (content is ToolApprovalRequestContent { ToolCall: FunctionCallContent { InformationalOnly: false } }) + { + hasRequest = true; + } } } - // Only approval responses are rewritten; if there are none there is nothing to bind or drop. - if (!hasResponse) + if (!hasResponse && !hasPendingRequests && !hasRequest) { - return (messageList, hasPendingRequests); + return (messageList, hasPendingRequests, null); } // Copy-on-write: only allocate a new message list once a message is actually modified. List? result = null; + // Bind incoming approval responses to the known approval requests. for (int i = 0; i < messageList.Count; i++) { var message = messageList[i]; - var mutableContentsBuffer = this.BindApprovalResponses(message, knownRequests, settledCallIds); + var mutableContentsBuffer = this.BindApprovalContents(message, knownRequests, settledCallIds); if (mutableContentsBuffer is null) { @@ -288,17 +327,47 @@ private bool TryGetSession([NotNullWhen(true)] out AgentSession? session) } } - return (result ?? messageList, hasPendingRequests); + // Create a rejection response for any known requests that weren't answered, + // to avoid failing the request and allow easier recovery when clients have + // lost the list of requests that they need to answer, but need to continue + // the conversation. + List? rejections = null; + ChatMessage? generatedRejections = null; + foreach (var request in knownRequests.Values) + { + if (settledCallIds?.Contains(request.ToolCall.CallId) is true) + { + continue; + } + + // FICC changes the rejection's FunctionCallContent.InformationalOnly flag. + // Copy the saved request's call so a failed rejection attempt leaves it usable for retry. + var rejection = ToolApprovalHelpers.SnapshotRequest(request).CreateResponse( + approved: false, + reason: "No approval response was provided for this approval required tool call."); + (rejections ??= []).Add(rejection); + generatedRejections ??= new ChatMessage(ChatRole.User, []) + { + MessageId = Guid.NewGuid().ToString("N"), + }; + // Keep the returned decision separate from the call FICC marks InformationalOnly. + generatedRejections.Contents.Add(CopyResponse(rejection, ToolApprovalHelpers.SnapshotRequest(request).ToolCall)); + } + + return (ToolApprovalHelpers.PrepareApprovalMessages(result ?? messageList, rejections, settledCallIds), hasPendingRequests, generatedRejections); } /// - /// Binds the items of a single message against the known requests. + /// Copies the function calls in the message's items whose + /// flag is . + /// Binds each to a copy of the tool call saved under its request id + /// in . /// Returns when the message needs no change, or the rewritten content list (which may be - /// empty, indicating the message should be dropped) when a change is required. Non-response content, including - /// approval requests, is preserved. Responses whose tool call appears in are - /// left untouched, because a call that already has a result cannot be executed by this response. + /// empty, indicating the message should be dropped) when a change is required. Responses referring to + /// call ids in are preserved unchanged because their existing results + /// prevent from executing those calls again. /// - private List? BindApprovalResponses( + private List? BindApprovalContents( ChatMessage message, Dictionary knownRequests, HashSet? settledCallIds) @@ -310,6 +379,14 @@ private bool TryGetSession([NotNullWhen(true)] out AgentSession? session) { var content = contents[j]; + if (content is ToolApprovalRequestContent { ToolCall: FunctionCallContent { InformationalOnly: false } } request) + { + var copied = ToolApprovalHelpers.SnapshotRequest(request); + mutableContentsBuffer = PrepareMutableContentsBuffer(mutableContentsBuffer, contents, j); + mutableContentsBuffer.Add(copied); + continue; + } + if (content is not ToolApprovalResponseContent response) { AppendUnchanged(mutableContentsBuffer, content); @@ -318,9 +395,6 @@ private bool TryGetSession([NotNullWhen(true)] out AgentSession? session) if (response.ToolCall is { CallId: { } responseCallId } && settledCallIds?.Contains(responseCallId) == true) { - // Settled: a result for this call is already present, so this response is a record of a decision - // that has already been carried out, not an authorization for work still to come. Leave it exactly - // as supplied. It cannot cause execution, so there is nothing here for the gate to protect. AppendUnchanged(mutableContentsBuffer, content); continue; } @@ -330,21 +404,11 @@ private bool TryGetSession([NotNullWhen(true)] out AgentSession? session) // Consume the match so a duplicate response for the same request in this turn is ignored. knownRequests.Remove(response.RequestId); - if (ToolCallsEquivalent(response.ToolCall, matchedRequest.ToolCall)) - { - // Already matches the surfaced call; keep the original content, no rebuild needed. - AppendUnchanged(mutableContentsBuffer, content); - } - else - { - // Rebind the tool call to the model-originated call so the approved call matches the - // tool name and arguments that were surfaced for approval. - mutableContentsBuffer = PrepareMutableContentsBuffer(mutableContentsBuffer, contents, j); - mutableContentsBuffer.Add(new ToolApprovalResponseContent(response.RequestId, response.Approved, matchedRequest.ToolCall) - { - Reason = response.Reason, - }); - } + // Copy the saved request's call even when the response has matching arguments: + // a failed attempt may have set the response's call to InformationalOnly. + // FICC must not change the caller's response call or the session's saved call. + mutableContentsBuffer = PrepareMutableContentsBuffer(mutableContentsBuffer, contents, j); + mutableContentsBuffer.Add(CopyResponse(response, ToolApprovalHelpers.SnapshotRequest(matchedRequest).ToolCall)); } else { @@ -357,6 +421,15 @@ private bool TryGetSession([NotNullWhen(true)] out AgentSession? session) return mutableContentsBuffer; } + private static ToolApprovalResponseContent CopyResponse(ToolApprovalResponseContent response, ToolCallContent toolCall) => + new(response.RequestId, response.Approved, toolCall) + { + Reason = response.Reason, + AdditionalProperties = response.AdditionalProperties is null ? null : new(response.AdditionalProperties), + RawRepresentation = response.RawRepresentation, + Annotations = response.Annotations is null ? null : new List(response.Annotations), + }; + /// /// Adds an unchanged content item to the mutable contents buffer when one exists. Until the buffer is created /// (no content has changed yet) this does nothing: the caller keeps the message's original contents as-is, so @@ -388,10 +461,8 @@ private static List PrepareMutableContentsBuffer(List? mut } /// - /// Determines whether two tool calls are equivalent, so an already-matching approval response does not - /// need to be rebuilt. This is a conservative optimization: it only returns when the - /// calls are known to be equivalent. A result simply triggers a (safe) rebind, so - /// callers never keep a substituted tool call. + /// Determines whether two surfaced tool calls are equivalent when merging pending requests. + /// Returns only when their identities, names, and arguments match. /// private static bool ToolCallsEquivalent(ToolCallContent responseCall, ToolCallContent recordedCall) { @@ -409,15 +480,14 @@ private static bool ToolCallsEquivalent(ToolCallContent responseCall, ToolCallCo && ArgumentsEquivalent(responseFunction.Arguments, recordedFunction.Arguments); } - // Any other tool call shape: treat as not equivalent so the call is rebound. This is safe and avoids - // an expensive general-purpose comparison for shapes that effectively never occur here. + // Unknown call shapes cannot safely be treated as the same pending request. return false; } /// /// Determines whether two function-call argument dictionaries are equivalent. Uses a shallow value /// comparison; when values cannot be proven equal (for example after a serialization round-trip changes the - /// runtime type), this returns , which is safe because it only forces a rebind. + /// runtime type), this returns to avoid merging distinct pending requests. /// private static bool ArgumentsEquivalent(IDictionary? responseArguments, IDictionary? recordedArguments) { @@ -514,7 +584,7 @@ private void MergePendingApprovalRequests(List emitt { // Store a snapshot so a later mutation of the caller-visible instance cannot change // the recorded tool call used to bind the response. - var snapshot = SnapshotRequest(request); + var snapshot = ToolApprovalHelpers.SnapshotRequest(request); known[request.RequestId] = snapshot; pendingRequests.Add(snapshot); changed = true; @@ -541,25 +611,6 @@ private void MergePendingApprovalRequests(List emitt } } - /// - /// Creates a snapshot of an approval request so a later mutation of the caller-visible instance - /// (for example changing the tool call arguments) cannot alter the recorded request used for binding. - /// - private static ToolApprovalRequestContent SnapshotRequest(ToolApprovalRequestContent request) - { - if (request.ToolCall is FunctionCallContent functionCall) - { - var clonedCall = new FunctionCallContent( - functionCall.CallId, - functionCall.Name, - functionCall.Arguments is null ? null : new Dictionary(functionCall.Arguments)); - - return new ToolApprovalRequestContent(request.RequestId, clonedCall); - } - - return request; - } - private static List LoadPendingApprovalRequests(AgentSession session) => session.StateBag.TryGetValue>(StateBagKey, out var pendingRequests, AgentJsonUtilities.DefaultOptions) && pendingRequests is not null diff --git a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentOptions.cs b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentOptions.cs index cd7a02776c8..75127b41944 100644 --- a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentOptions.cs +++ b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentOptions.cs @@ -248,6 +248,13 @@ public sealed class ChatClientAgentOptions /// approved call aligned with exactly what a human was asked to approve. /// /// + /// Any recorded request left unanswered on the next run is automatically rejected, including when only some + /// requests are answered or no messages are supplied. The rejected tool is not executed. This allows the + /// conversation to continue without leaving unanswered tool calls. Disabling binding also disables this behavior. + /// Generated rejection responses are included in the returned messages before tool results, so end-of-run + /// history saving can record them. Caller-supplied approval responses are not returned again. + /// + /// /// Binding applies to responses for every tool category, including tools that do not require human approval. A /// response takes effect only when its matching request was recorded in the current by /// the framework. Request content supplied or replayed by the caller does not establish that binding, so hosts must diff --git a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientBuilderExtensions.cs b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientBuilderExtensions.cs index b97a667cd6a..892369d6421 100644 --- a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientBuilderExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientBuilderExtensions.cs @@ -199,6 +199,13 @@ public static ChatClientBuilder UseApprovalNotRequiredFunctionBypassing(this Cha /// approve. /// /// + /// Any recorded request left unanswered on the next run is automatically rejected, including when only some + /// requests are answered or no messages are supplied. The rejected tool is not executed, and the conversation + /// can continue. This behavior requires the saved session and is disabled along with approval-response binding. + /// Generated rejection responses are included in the returned messages before tool results, so end-of-run + /// history saving can record them. Caller-supplied approval responses are not returned again. + /// + /// /// Binding applies to responses for every tool category, including tools that do not require human approval. A /// response takes effect only when its matching request was recorded in the current by /// the framework. Request content supplied or replayed by the caller does not establish that binding, so hosts must diff --git a/dotnet/src/Microsoft.Agents.AI/ChatClient/ToolApprovalHelpers.cs b/dotnet/src/Microsoft.Agents.AI/ChatClient/ToolApprovalHelpers.cs new file mode 100644 index 00000000000..9ab35175620 --- /dev/null +++ b/dotnet/src/Microsoft.Agents.AI/ChatClient/ToolApprovalHelpers.cs @@ -0,0 +1,165 @@ +// Copyright (c) Microsoft. All rights reserved. + +using System; +using System.Collections.Generic; +using Microsoft.Extensions.AI; + +namespace Microsoft.Agents.AI; + +/// +/// Shared helpers for copying tool-approval requests and ordering approval responses in chat messages. +/// +internal static class ToolApprovalHelpers +{ + /// + /// Creates a new and with the + /// original request id, call id, function name, arguments, and metadata. The copied function call has + /// set to so a recorded pending + /// request remains executable on retry. Returns requests for other tool-call types unchanged. + /// + internal static ToolApprovalRequestContent SnapshotRequest(ToolApprovalRequestContent request) + { + if (request.ToolCall is FunctionCallContent functionCall) + { + var clonedCall = new FunctionCallContent( + functionCall.CallId, + functionCall.Name, + functionCall.Arguments is null ? null : new Dictionary(functionCall.Arguments)) + { + AdditionalProperties = functionCall.AdditionalProperties is null ? null : new(functionCall.AdditionalProperties), + RawRepresentation = functionCall.RawRepresentation, + Annotations = functionCall.Annotations is null ? null : new List(functionCall.Annotations), + }; + + return new ToolApprovalRequestContent(request.RequestId, clonedCall) + { + AdditionalProperties = request.AdditionalProperties is null ? null : new(request.AdditionalProperties), + RawRepresentation = request.RawRepresentation, + Annotations = request.Annotations is null ? null : new List(request.Annotations), + }; + } + + return request; + } + + /// + /// Groups items whose function calls have + /// set to after the input's + /// unfinished approval requests and before new caller messages. Approval responses whose calls already + /// have results remain in place. If no unfinished request is present, responses follow + /// messages tagged as chat history, or precede all messages if none are tagged. + /// Both approval decorators use this because inserts tool results + /// at the last approval message; an automatic response appended after a new question would put the + /// tool results after that question. + /// + /// + /// Returns the original list when there are no function-approval responses to move or add. + /// Other input sequences are materialized once. + /// + internal static List PrepareApprovalMessages( + IEnumerable messages, List? additionalResponses, HashSet? settledCallIds = null) + { + List messageList = messages as List ?? new List(messages); + if (settledCallIds is null) + { + foreach (var message in messageList) + { + foreach (var content in message.Contents) + { + if (content is FunctionResultContent resultContent) + { + (settledCallIds ??= new HashSet(StringComparer.Ordinal)).Add(resultContent.CallId); + } + } + } + } + + List? result = null; + List? decisions = null; + int insertIndex = 0; + bool foundRequest = false; + + for (int i = 0; i < messageList.Count; i++) + { + var message = messageList[i]; + List? responses = null; + List? remaining = null; + bool hasRequest = false; + for (int j = 0; j < message.Contents.Count; j++) + { + var content = message.Contents[j]; + if (content is ToolApprovalResponseContent { ToolCall: FunctionCallContent { InformationalOnly: false } } response + && settledCallIds?.Contains(response.ToolCall.CallId) != true) + { + if (responses is null) + { + responses = []; + remaining = new List(message.Contents.Count); + for (int k = 0; k < j; k++) + { + remaining.Add(message.Contents[k]); + } + } + + responses.Add(content); + } + else + { + remaining?.Add(content); + hasRequest |= content is ToolApprovalRequestContent { ToolCall: FunctionCallContent { InformationalOnly: false } } request + && settledCallIds?.Contains(request.ToolCall.CallId) != true; + } + } + + if (responses is null) + { + result?.Add(message); + } + else + { + if (result is null) + { + result = new List(messageList.Count); + for (int k = 0; k < i; k++) + { + result.Add(messageList[k]); + } + } + + var decisionMessage = message.Clone(); + decisionMessage.Contents = responses; + (decisions ??= []).Add(decisionMessage); + if (remaining is { Count: > 0 }) + { + var remainingMessage = message.Clone(); + remainingMessage.Contents = remaining; + result.Add(remainingMessage); + } + } + + if (hasRequest) + { + foundRequest = true; + insertIndex = result?.Count ?? i + 1; + } + else if (!foundRequest && message.GetAgentRequestMessageSourceType() == AgentRequestMessageSourceType.ChatHistory) + { + insertIndex = result?.Count ?? i + 1; + } + } + + if (additionalResponses is { Count: > 0 }) + { + (decisions ??= []).Add(new ChatMessage(ChatRole.User, additionalResponses)); + } + + if (decisions is null) + { + return messageList; + } + + result ??= new List(messageList); + result.InsertRange(insertIndex, decisions); + return result; + } +} diff --git a/dotnet/src/Microsoft.Agents.AI/FunctionInvocationDelegatingAgentBuilderExtensions.cs b/dotnet/src/Microsoft.Agents.AI/FunctionInvocationDelegatingAgentBuilderExtensions.cs index 21ed067e973..fa58b6c964a 100644 --- a/dotnet/src/Microsoft.Agents.AI/FunctionInvocationDelegatingAgentBuilderExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI/FunctionInvocationDelegatingAgentBuilderExtensions.cs @@ -50,6 +50,15 @@ public static class FunctionInvocationDelegatingAgentBuilderExtensions /// The inner agent or the pipeline wrapping it must include a . If one does not exist, /// the added to the pipline by this method will throw an exception when it is invoked. /// + /// + /// Important: these callbacks apply to tools registered on the agent, including tools passed to a + /// constructor or AsAIAgent, tools configured through + /// , and tools supplied for an individual run. These tools are + /// provided to the function-calling client through . Functions placed directly on + /// are invoked without going through this callback + /// pipeline. Do not rely on these callbacks to enforce checks, such as authorization or any other checks, for + /// functions that are registered via . + /// /// public static AIAgentBuilder Use(this AIAgentBuilder builder, Func>, CancellationToken, ValueTask> callback) { diff --git a/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/AgentFileStore.cs b/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/AgentFileStore.cs index e275d33a437..b1aeba8d3c4 100644 --- a/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/AgentFileStore.cs +++ b/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/AgentFileStore.cs @@ -28,6 +28,10 @@ namespace Microsoft.Agents.AI; [Experimental(DiagnosticIds.Experiments.AgentsAIExperiments)] public abstract class AgentFileStore { + private static readonly TimeSpan s_regexMatchTimeout = TimeSpan.FromSeconds(5); + + internal static TimeSpan SearchTimeout { get; } = TimeSpan.FromSeconds(10); + /// /// Writes content to a file, creating or overwriting it. /// @@ -100,7 +104,7 @@ public abstract class AgentFileStore /// Implementers overriding this method must report as a /// 1-based coordinate into of the same content /// returns, and should report verbatim, terminator included. - /// produces both correctly and is the recommended way to build results. + /// produces both correctly and is the recommended way to build results. /// /// /// Numbering against anything else — a different split rule, or content this store does not serve @@ -111,39 +115,49 @@ public abstract class AgentFileStore /// public virtual async Task> SearchAsync(string directory, string regexPattern, string? globPattern = null, bool recursive = false, CancellationToken cancellationToken = default) { - // Compile with a match timeout to guard against catastrophic backtracking (ReDoS). - var regex = new Regex(regexPattern, RegexOptions.IgnoreCase, TimeSpan.FromSeconds(5)); - IReadOnlyList names = await this.FindMatchingFilesAsync(directory, regexPattern, globPattern, recursive, cancellationToken).ConfigureAwait(false); - Matcher? matcher = globPattern is not null ? StorePaths.CreateGlobMatcher(globPattern) : null; - var results = new List(); + var regex = CreateSearchRegex(regexPattern); + using var timeout = new MultiStepOperationTimeout(SearchTimeout, cancellationToken); - foreach (string name in names) + try { - cancellationToken.ThrowIfCancellationRequested(); + IReadOnlyList names = await timeout.RunStepAsync( + token => this.FindMatchingFilesAsync(directory, regexPattern, globPattern, recursive, token)).ConfigureAwait(false); + Matcher? matcher = globPattern is not null ? StorePaths.CreateGlobMatcher(globPattern) : null; + var results = new List(); - // Re-apply the caller's scope: FindMatchingFilesAsync is explicitly allowed to - // over-return, and must not be able to widen what the caller asked for. - if (!StorePaths.MatchesGlob(name, matcher) || - (!recursive && name.IndexOf("/", StringComparison.Ordinal) >= 0)) + foreach (string name in names) { - continue; - } + timeout.ThrowIfCancellationRequested(); - string path = string.IsNullOrEmpty(directory) ? name : $"{directory.TrimEnd('/')}/{name}"; - string? content = await this.ReadAsync(path, cancellationToken).ConfigureAwait(false); - if (content is null) - { - continue; // Deleted between enumeration and read. - } + // Re-apply the caller's scope: FindMatchingFilesAsync is explicitly allowed to + // over-return, and must not be able to widen what the caller asked for. + if (!StorePaths.MatchesGlob(name, matcher) || + (!recursive && name.IndexOf("/", StringComparison.Ordinal) >= 0)) + { + continue; + } - FileSearchResult? result = ScanContent(name, content, regex); - if (result is not null) - { - results.Add(result); + string path = string.IsNullOrEmpty(directory) ? name : $"{directory.TrimEnd('/')}/{name}"; + string? content = await timeout.RunStepAsync(token => this.ReadAsync(path, token)).ConfigureAwait(false); + if (content is null) + { + continue; // Deleted between enumeration and read. + } + + FileSearchResult? result = timeout.RunStep(token => ScanContent(name, content, regex, token)); + if (result is not null) + { + results.Add(result); + } } - } - return results; + timeout.ThrowIfCancellationRequested(); + return results; + } + catch (TimeoutException) when (timeout.Token.IsCancellationRequested) + { + throw CreateSearchTimeoutException(regexPattern); + } } /// @@ -248,8 +262,8 @@ protected virtual async Task> FindMatchingFilesAsync(strin public static IReadOnlyList SplitLines(string content) => FileEditor.SplitLinesKeepEnds(Throw.IfNull(content)); /// - /// Finds every line of matching , numbered by - /// . + /// Finds every line of matching , allowing + /// cancellation between lines and after each regex match. /// /// /// This is the numbering primitive uses, published so a store that @@ -260,13 +274,24 @@ protected virtual async Task> FindMatchingFilesAsync(strin /// The name recorded on the result, relative to the searched directory. /// The file's full text. /// A compiled pattern, normally from the same source string passed to . + /// A token to cancel content scanning. /// The match metadata, or when no line matches. - public static FileSearchResult? ScanContent(string fileName, string content, Regex regex) + /// The cancellation token was cancelled. + public static FileSearchResult? ScanContent(string fileName, string content, Regex regex, CancellationToken cancellationToken = default) { _ = Throw.IfNull(fileName); _ = Throw.IfNull(content); _ = Throw.IfNull(regex); + return ScanContent(fileName, content, (line, length) => regex.Match(line, 0, length), cancellationToken); + } + + private static FileSearchResult? ScanContent(string fileName, string content, Func matchLine, CancellationToken cancellationToken) + { + _ = Throw.IfNull(fileName); + _ = Throw.IfNull(content); + _ = Throw.IfNull(matchLine); + IReadOnlyList lines = SplitLines(content); var matchingLines = new List(); string? firstSnippet = null; @@ -274,8 +299,11 @@ protected virtual async Task> FindMatchingFilesAsync(strin for (int i = 0; i < lines.Count; i++) { + cancellationToken.ThrowIfCancellationRequested(); + // Match over the line's text only, without copying it out of the line. - Match match = regex.Match(lines[i], 0, FileEditor.LineContentLength(lines[i])); + Match match = matchLine(lines[i], FileEditor.LineContentLength(lines[i])); + cancellationToken.ThrowIfCancellationRequested(); if (match.Success) { matchingLines.Add(new FileSearchMatch { LineNumber = i + 1, Line = lines[i] }); @@ -299,6 +327,11 @@ protected virtual async Task> FindMatchingFilesAsync(strin : new FileSearchResult { FileName = fileName, Snippet = firstSnippet!, MatchingLines = matchingLines }; } + internal static Regex CreateSearchRegex(string pattern) => new(pattern, RegexOptions.IgnoreCase, s_regexMatchTimeout); + + internal static RegexMatchTimeoutException CreateSearchTimeoutException(string pattern) => + new(string.Empty, pattern, SearchTimeout); + /// /// Ensures a directory exists, creating it if necessary. /// diff --git a/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/FileSystemAgentFileStore.cs b/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/FileSystemAgentFileStore.cs index 0cc2f6f9c17..687d042707d 100644 --- a/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/FileSystemAgentFileStore.cs +++ b/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/FileSystemAgentFileStore.cs @@ -169,50 +169,64 @@ public override async Task> SearchAsync( bool recursive = false, CancellationToken cancellationToken = default) { - string fullDir = this.ResolveSafeDirectoryPath(directory); + Regex regex = CreateSearchRegex(regexPattern); + using var timeout = new MultiStepOperationTimeout(SearchTimeout, cancellationToken); - if (!Directory.Exists(fullDir)) + try { - return []; - } + string fullDir = this.ResolveSafeDirectoryPath(directory); + timeout.ThrowIfCancellationRequested(); - // Compile the regex with a timeout to guard against catastrophic backtracking (ReDoS). - var regex = new Regex(regexPattern, RegexOptions.IgnoreCase, TimeSpan.FromSeconds(5)); - Matcher? matcher = globPattern is not null ? StorePaths.CreateGlobMatcher(globPattern) : null; - var results = new List(); + if (!Directory.Exists(fullDir)) + { + timeout.ThrowIfCancellationRequested(); + return []; + } - foreach (string filePath in EnumerateFiles(fullDir, recursive)) - { - // The file path relative to the search directory, using forward slashes. - string relativeName = GetRelativeStorePath(fullDir, filePath); + Matcher? matcher = globPattern is not null ? StorePaths.CreateGlobMatcher(globPattern) : null; + var results = new List(); - // Apply the optional glob filter on the relative path. - if (!StorePaths.MatchesGlob(relativeName, matcher)) + foreach (string filePath in EnumerateFiles(fullDir, recursive, timeout.Token)) { - continue; - } + timeout.ThrowIfCancellationRequested(); + + // The file path relative to the search directory, using forward slashes. + string relativeName = GetRelativeStorePath(fullDir, filePath); + + // Apply the optional glob filter on the relative path. + if (!StorePaths.MatchesGlob(relativeName, matcher)) + { + continue; + } - // Read file content. + // Read file content. #if NET8_0_OR_GREATER - string fileContent = await File.ReadAllTextAsync(filePath, Encoding.UTF8, cancellationToken).ConfigureAwait(false); + string fileContent = await timeout.RunStepAsync( + token => File.ReadAllTextAsync(filePath, Encoding.UTF8, token)).ConfigureAwait(false); #else - string fileContent; - using (var reader = new StreamReader(filePath, Encoding.UTF8)) - { - fileContent = await reader.ReadToEndAsync().ConfigureAwait(false); - } + string fileContent = await timeout.RunStepAsync(async _ => + { + using var reader = new StreamReader(filePath, Encoding.UTF8); + return await reader.ReadToEndAsync().ConfigureAwait(false); + }).ConfigureAwait(false); #endif - // Number the lines through the base class's published primitive, so this store - // and the line editor cannot drift apart. - FileSearchResult? result = ScanContent(relativeName, fileContent, regex); - if (result is not null) - { - results.Add(result); + // Number the lines through the base class's published primitive, so this store + // and the line editor cannot drift apart. + FileSearchResult? result = timeout.RunStep(token => ScanContent(relativeName, fileContent, regex, token)); + if (result is not null) + { + results.Add(result); + } } - } - return results; + timeout.ThrowIfCancellationRequested(); + return results; + } + catch (TimeoutException) when (timeout.Token.IsCancellationRequested) + { + throw CreateSearchTimeoutException(regexPattern); + } } /// @@ -220,10 +234,16 @@ public override async Task> SearchAsync( /// is ), skipping symlinks/reparse points for both /// files and directories to prevent reading outside the root. /// - private static IEnumerable EnumerateFiles(string directory, bool recursive) + private static IEnumerable EnumerateFiles( + string directory, + bool recursive, + CancellationToken cancellationToken) { + cancellationToken.ThrowIfCancellationRequested(); foreach (string filePath in Directory.EnumerateFiles(directory)) { + cancellationToken.ThrowIfCancellationRequested(); + // Skip files that are symlinks/reparse points. if ((File.GetAttributes(filePath) & FileAttributes.ReparsePoint) != 0) { @@ -233,6 +253,7 @@ private static IEnumerable EnumerateFiles(string directory, bool recursi yield return filePath; } + cancellationToken.ThrowIfCancellationRequested(); if (!recursive) { yield break; @@ -240,13 +261,15 @@ private static IEnumerable EnumerateFiles(string directory, bool recursi foreach (string subDir in Directory.EnumerateDirectories(directory)) { + cancellationToken.ThrowIfCancellationRequested(); + // Skip symlinked/reparse-point directories so recursion cannot escape the root. if ((File.GetAttributes(subDir) & FileAttributes.ReparsePoint) != 0) { continue; } - foreach (string filePath in EnumerateFiles(subDir, recursive: true)) + foreach (string filePath in EnumerateFiles(subDir, recursive: true, cancellationToken)) { yield return filePath; } diff --git a/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/InMemoryAgentFileStore.cs b/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/InMemoryAgentFileStore.cs index 3c532320c74..11b8048253d 100644 --- a/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/InMemoryAgentFileStore.cs +++ b/dotnet/src/Microsoft.Agents.AI/Harness/FileStore/InMemoryAgentFileStore.cs @@ -106,51 +106,61 @@ public override Task FileExistsAsync(string path, CancellationToken cancel /// public override Task> SearchAsync(string directory, string regexPattern, string? globPattern = null, bool recursive = false, CancellationToken cancellationToken = default) { - // Normalize the directory prefix for path matching. - string prefix = StorePaths.NormalizeRelativePath(directory, isDirectory: true); - if (prefix.Length > 0 && !prefix.EndsWith("/", StringComparison.Ordinal)) - { - prefix += "/"; - } - - // Compile the regex with a timeout to guard against catastrophic backtracking (ReDoS). - var regex = new Regex(regexPattern, RegexOptions.IgnoreCase, TimeSpan.FromSeconds(5)); - Matcher? matcher = globPattern is not null ? StorePaths.CreateGlobMatcher(globPattern) : null; - var results = new List(); + Regex regex = CreateSearchRegex(regexPattern); + using var timeout = new MultiStepOperationTimeout(SearchTimeout, cancellationToken); - foreach (var kvp in this._files) + try { - // Only consider files within the target directory (by path prefix). - if (!kvp.Key.StartsWith(prefix, StringComparison.OrdinalIgnoreCase)) + // Normalize the directory prefix for path matching. + string prefix = StorePaths.NormalizeRelativePath(directory, isDirectory: true); + if (prefix.Length > 0 && !prefix.EndsWith("/", StringComparison.Ordinal)) { - continue; + prefix += "/"; } - // The file path relative to the search directory. - string relativeName = kvp.Key.Substring(prefix.Length); + Matcher? matcher = globPattern is not null ? StorePaths.CreateGlobMatcher(globPattern) : null; + var results = new List(); - // When not recursive, exclude files in subdirectories (direct children only). - if (!recursive && relativeName.IndexOf("/", StringComparison.Ordinal) >= 0) + foreach (var kvp in this._files) { - continue; - } + timeout.ThrowIfCancellationRequested(); - // Apply the optional glob filter on the relative path. - if (!StorePaths.MatchesGlob(relativeName, matcher)) - { - continue; - } + // Only consider files within the target directory (by path prefix). + if (!kvp.Key.StartsWith(prefix, StringComparison.OrdinalIgnoreCase)) + { + continue; + } - // Number the lines through the base class's published primitive, so this store - // and the line editor cannot drift apart. - FileSearchResult? result = ScanContent(relativeName, kvp.Value, regex); - if (result is not null) - { - results.Add(result); + // The file path relative to the search directory. + string relativeName = kvp.Key.Substring(prefix.Length); + + // When not recursive, exclude files in subdirectories (direct children only). + if (!recursive && relativeName.IndexOf("/", StringComparison.Ordinal) >= 0) + { + continue; + } + + // Apply the optional glob filter on the relative path. + if (!StorePaths.MatchesGlob(relativeName, matcher)) + { + continue; + } + + // Number the lines through the base class's published primitive, so this store + // and the line editor cannot drift apart. + FileSearchResult? result = timeout.RunStep(token => ScanContent(relativeName, kvp.Value, regex, token)); + if (result is not null) + { + results.Add(result); + } } - } - return Task.FromResult>(results); + return Task.FromResult>(results); + } + catch (TimeoutException) when (timeout.Token.IsCancellationRequested) + { + throw CreateSearchTimeoutException(regexPattern); + } } /// diff --git a/dotnet/src/Microsoft.Agents.AI/Harness/MultiStepOperationTimeout.cs b/dotnet/src/Microsoft.Agents.AI/Harness/MultiStepOperationTimeout.cs new file mode 100644 index 00000000000..d4184202cda --- /dev/null +++ b/dotnet/src/Microsoft.Agents.AI/Harness/MultiStepOperationTimeout.cs @@ -0,0 +1,157 @@ +// Copyright (c) Microsoft. All rights reserved. + +using System; +using System.Threading; +using System.Threading.Tasks; + +namespace Microsoft.Agents.AI; + +/// +/// Applies one shared timeout across the steps of an operation while preserving caller cancellation. +/// +internal sealed class MultiStepOperationTimeout : IDisposable +{ + private readonly CancellationToken _callerToken; + private readonly CancellationTokenSource _timeoutSource; + + /// + /// Initializes a timeout linked to the caller's cancellation token. + /// + /// The maximum time allowed for the operation. + /// The caller's cancellation token. + public MultiStepOperationTimeout(TimeSpan timeout, CancellationToken cancellationToken) + { + if (timeout <= TimeSpan.Zero) + { + throw new ArgumentOutOfRangeException(nameof(timeout)); + } + + this._callerToken = cancellationToken; + this._timeoutSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + this._timeoutSource.CancelAfter(timeout); + this.Token = this._timeoutSource.Token; + } + + /// + /// Gets a token cancelled by either the caller or the timeout. + /// + public CancellationToken Token { get; } + + /// + /// Runs one synchronous step with the shared timeout token. + /// + /// The type returned by the operation. + /// The step to run. + /// The step result. + /// The caller cancelled the operation. + /// The operation exceeded its time limit. + public T RunStep(Func step) + { + if (step is null) + { + throw new ArgumentNullException(nameof(step)); + } + + this.ThrowIfCancellationRequested(); + + try + { + T result = step(this.Token); + this.ThrowIfCancellationRequested(); + return result; + } + catch (OperationCanceledException) when (this.Token.IsCancellationRequested) + { + this.ThrowIfCancellationRequested(); + throw; + } + } + + /// + /// Runs one asynchronous step with the shared timeout token and stops waiting when the timeout expires. + /// + /// The type returned by the operation. + /// The step to run. + /// The step result. + /// The caller cancelled the operation. + /// The operation exceeded its time limit. + public async Task RunStepAsync(Func> step) + { + if (step is null) + { + throw new ArgumentNullException(nameof(step)); + } + + // Do not start another step after the caller has cancelled or the shared timeout has expired. + this.ThrowIfCancellationRequested(); + + Task stepTask; + try + { + stepTask = step(this.Token); + } + catch (OperationCanceledException) when (this.Token.IsCancellationRequested) + { + // The step may observe the linked token before returning its task. Convert that + // cancellation now so caller cancellation still takes priority over timeout expiry. + this.ThrowIfCancellationRequested(); + throw; + } + + // A step is allowed to ignore the supplied token. Race it against an explicit cancellation + // signal so this method stops waiting when the shared timeout expires. + var cancellationSignal = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + using CancellationTokenRegistration registration = this.Token.Register( + static state => ((TaskCompletionSource)state!).TrySetResult(true), + cancellationSignal); + _ = await Task.WhenAny(stepTask, cancellationSignal.Task).ConfigureAwait(false); + + if (!stepTask.IsCompleted) + { + // The timed-out step may continue running. Observe any later fault before reporting the + // cancellation or timeout so it cannot become an unobserved task exception. + ObserveFault(stepTask); + this.ThrowIfCancellationRequested(); + } + + try + { + T result = await stepTask.ConfigureAwait(false); + + // The step and timeout can finish together. Check the shared token before returning a + // result so an expired multi-step operation is not reported as successful. + this.ThrowIfCancellationRequested(); + return result; + } + catch (OperationCanceledException) when (this.Token.IsCancellationRequested) + { + // Distinguish caller cancellation from expiry of the shared timer. + this.ThrowIfCancellationRequested(); + throw; + } + } + + /// + /// Throws when the caller cancelled the operation or its timeout expired. + /// + /// The caller cancelled the operation. + /// The operation exceeded its time limit. + public void ThrowIfCancellationRequested() + { + this._callerToken.ThrowIfCancellationRequested(); + if (this.Token.IsCancellationRequested) + { + throw new TimeoutException("The operation exceeded its time limit."); + } + } + + /// + public void Dispose() => this._timeoutSource.Dispose(); + + private static void ObserveFault(Task task) => + _ = task.ContinueWith( + static completedTask => _ = completedTask.Exception, + CancellationToken.None, + TaskContinuationOptions.ExecuteSynchronously | TaskContinuationOptions.OnlyOnFaulted, + TaskScheduler.Default); +} diff --git a/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/AlwaysApproveToolApprovalResponseContent.cs b/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/AlwaysApproveToolApprovalResponseContent.cs index 929eb41bfe0..7ef6f103c5c 100644 --- a/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/AlwaysApproveToolApprovalResponseContent.cs +++ b/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/AlwaysApproveToolApprovalResponseContent.cs @@ -22,6 +22,11 @@ namespace Microsoft.Agents.AI; /// to the inner agent, while extracting the approval settings to persist as /// entries in the session state. /// +/// +/// Security: The resulting rules are not tied to the agent or tool instance that created the request. +/// Before reusing the session with a different agent or tool set, especially one that can load tools from an +/// outside source such as MCP, ensure the rules are still appropriate for matching tool names and arguments. +/// /// public sealed class AlwaysApproveToolApprovalResponseContent : AIContent { diff --git a/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalAgent.cs b/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalAgent.cs index b2d906d2538..aa4cf085d35 100644 --- a/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalAgent.cs +++ b/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalAgent.cs @@ -48,6 +48,15 @@ namespace Microsoft.Agents.AI; /// Tool-level: Approve all calls to a specific tool, regardless of arguments. /// Tool+arguments: Approve all calls to a specific tool with exactly matching arguments. /// +/// +/// Security: Standing approval rules are stored in the session; they are not tied to the agent or tool +/// instance that recorded them. Reusing a session with a different or rebuilt agent, or with a changed tool set, +/// can let another tool with the same name match an earlier rule. This is especially important when tools can come +/// from an outside source such as MCP. Before passing such a session to an agent, ensure its standing approvals +/// are still valid for all tools the agent can use. A changed tool does not always require a new approval. For +/// example, an upgraded agent may use an improved version of a tool for which the old approval is still appropriate. +/// The developer must decide whether each standing approval should carry over to the changed tool. +/// /// public sealed class ToolApprovalAgent : DelegatingAIAgent { @@ -254,6 +263,12 @@ protected override async IAsyncEnumerable RunCoreStreamingA if (cappedRequests is not null) { + this.EnsureRequestIdsUnique( + cappedRequests, + state, + session, + includeSurfacedRequests: recordedAnyCappedRequest); + // The first update carrying requests supersedes any earlier batch; later updates in this // same turn add to it, since every one of them reaches the caller. if (recordedAnyCappedRequest) @@ -339,6 +354,8 @@ protected override async IAsyncEnumerable RunCoreStreamingA yield break; } + this.EnsureRequestIdsUnique(streamedApprovalRequests, state, session, includeSurfacedRequests: false); + // 4. Classify the collected approval requests against standing rules and auto-approval rules. List unapproved = []; foreach (var tarc in streamedApprovalRequests) @@ -409,6 +426,7 @@ private void RecordSurfacedApprovalRequestsFromMessages( if (requests is not null) { + this.EnsureRequestIdsUnique(requests, state, session, includeSurfacedRequests: false); ResetSurfacedApprovalRequests(state, requests); this._sessionState.SaveState(session, state); } @@ -422,12 +440,6 @@ private void RecordSurfacedApprovalRequestsFromMessages( /// /// A new batch from the inner agent supersedes any previous one, so stale entries from an abandoned /// approval cycle cannot later authorize a standing rule. - /// - /// Request ids are unique by construction, so keying by id loses nothing: they derive from tool call ids, and - /// inference services correlate a tool call to its result by that id alone. A duplicate id would already have - /// broken that correlation upstream. Nothing a caller sends reaches this dictionary — every entry originates - /// from the inner agent's own response — so a caller cannot manufacture a collision here. - /// /// private static void ResetSurfacedApprovalRequests(ToolApprovalState state, IReadOnlyList requests) { @@ -468,6 +480,61 @@ private static ToolApprovalRequestContent SnapshotRequest(ToolApprovalRequestCon return request; } + /// + /// Rejects duplicate active approval request IDs. + /// + private void EnsureRequestIdsUnique( + List requests, + ToolApprovalState state, + AgentSession? session, + bool includeSurfacedRequests) + { + if (requests.Count == 0) + { + return; + } + + var knownRequestIds = new HashSet(StringComparer.Ordinal); + if (includeSurfacedRequests) + { + foreach (string requestId in state.SurfacedApprovalRequests.Keys) + { + knownRequestIds.Add(requestId); + } + } + + HashSet? duplicateRequestIds = null; + + foreach (var request in requests) + { + if (knownRequestIds.Add(request.RequestId)) + { + continue; + } + + (duplicateRequestIds ??= new(StringComparer.Ordinal)).Add(request.RequestId); + } + + if (duplicateRequestIds is null || duplicateRequestIds.Count == 0) + { + return; + } + + foreach (string requestId in duplicateRequestIds) + { + state.SurfacedApprovalRequests.Remove(requestId); + state.QueuedApprovalRequests.RemoveAll( + queued => string.Equals(queued.RequestId, requestId, StringComparison.Ordinal)); + state.CollectedApprovalResponses.RemoveAll( + response => string.Equals(response.RequestId, requestId, StringComparison.Ordinal)); + } + + this._sessionState.SaveState(session, state); + + throw new InvalidOperationException( + $"Tool approval request IDs '{string.Join("', '", duplicateRequestIds.OrderBy(id => id, StringComparer.Ordinal))}' were used more than once."); + } + /// /// Re-evaluates queued approval requests against current rules and auto-approval rules, and auto-approves any that now match. /// @@ -597,6 +664,12 @@ private async ValueTask ProcessAndQueueOutboundApprovalRequestsAsync( AgentRunOptions? options, IReadOnlyCollection requestMessages) { + var requests = responseMessages + .SelectMany(message => message.Contents) + .OfType() + .ToList(); + this.EnsureRequestIdsUnique(requests, state, session, includeSurfacedRequests: false); + // Pass 1: Scan all response messages and classify each approval request. // Auto-approved requests (matching a standing rule or auto-approval rule) have their // responses collected immediately, preserving the original request order, and are diff --git a/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalAgentBuilderExtensions.cs b/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalAgentBuilderExtensions.cs index 4d5ae288928..3e1f9f56813 100644 --- a/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalAgentBuilderExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalAgentBuilderExtensions.cs @@ -25,6 +25,11 @@ public static class ToolApprovalAgentBuilderExtensions /// When a caller responds with an , the middleware records a standing /// approval rule so that future matching tool calls are auto-approved without user interaction. /// + /// + /// Security: Standing rules persist in session state and are not tied to the agent or tool instance + /// that recorded them. Before reusing a session with a different agent or tool set, especially one that can + /// load tools from an outside source such as MCP, ensure its standing approvals are still appropriate. + /// /// public static AIAgentBuilder UseToolApproval( this AIAgentBuilder builder, diff --git a/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalRequestContentExtensions.cs b/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalRequestContentExtensions.cs index 09ad2cf87f4..5bc8f537c00 100644 --- a/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalRequestContentExtensions.cs +++ b/dotnet/src/Microsoft.Agents.AI/Harness/ToolApproval/ToolApprovalRequestContentExtensions.cs @@ -24,6 +24,12 @@ public static class ToolApprovalRequestContentExtensions /// with the /// flag set to . /// + /// + /// The resulting standing rule persists in session state and is not tied to the agent or tool instance that + /// created the request. Before reusing the session with a different agent or tool set, especially one that can + /// load tools from an outside source such as MCP, ensure the rule is still appropriate for every matching tool + /// name. + /// public static AlwaysApproveToolApprovalResponseContent CreateAlwaysApproveToolResponse( this ToolApprovalRequestContent request, string? reason = null) @@ -48,6 +54,12 @@ public static AlwaysApproveToolApprovalResponseContent CreateAlwaysApproveToolRe /// with the /// flag set to . /// + /// + /// The resulting standing rule persists in session state and is not tied to the agent or tool instance that + /// created the request. Before reusing the session with a different agent or tool set, especially one that can + /// load tools from an outside source such as MCP, ensure the rule is still appropriate for every matching tool + /// name and argument set. Otherwise, use a new session. + /// public static AlwaysApproveToolApprovalResponseContent CreateAlwaysApproveToolWithArgumentsResponse( this ToolApprovalRequestContent request, string? reason = null) diff --git a/dotnet/src/Microsoft.Agents.AI/PublicAPI/net10.0/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI/PublicAPI/net10.0/PublicAPI.Unshipped.txt index fada975c025..b83df49fe53 100644 --- a/dotnet/src/Microsoft.Agents.AI/PublicAPI/net10.0/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI/PublicAPI/net10.0/PublicAPI.Unshipped.txt @@ -17,7 +17,7 @@ Microsoft.Agents.AI.AgentModeProviderOptions.DisableModeSetTool.set -> void [MAAI001]Microsoft.Agents.AI.FileLineEdit.ExpectedLine.set -> void [MAAI001]const Microsoft.Agents.AI.FileAccessProvider.ReadLinesToolName = "file_access_read_lines" -> string! [MAAI001]static Microsoft.Agents.AI.AIAgentExtensions.AsIChatClient(this Microsoft.Agents.AI.AIAgent! agent, Microsoft.Agents.AI.AgentSession? session = null, string? conversationId = null, bool allowNonChatClientAgents = false) -> Microsoft.Extensions.AI.IChatClient! -[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex) -> Microsoft.Agents.AI.FileSearchResult? +[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> Microsoft.Agents.AI.FileSearchResult? [MAAI001]static Microsoft.Agents.AI.AgentFileStore.SplitLines(string! content) -> System.Collections.Generic.IReadOnlyList! [MAAI001]static Microsoft.Agents.AI.OpenTelemetryAgent.DefaultSourceName.get -> string! [MAAI001]virtual Microsoft.Agents.AI.AgentFileStore.FindMatchingFilesAsync(string! directory, string! regexPattern, string? globPattern = null, bool recursive = false, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> System.Threading.Tasks.Task!>! diff --git a/dotnet/src/Microsoft.Agents.AI/PublicAPI/net472/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI/PublicAPI/net472/PublicAPI.Unshipped.txt index fada975c025..b83df49fe53 100644 --- a/dotnet/src/Microsoft.Agents.AI/PublicAPI/net472/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI/PublicAPI/net472/PublicAPI.Unshipped.txt @@ -17,7 +17,7 @@ Microsoft.Agents.AI.AgentModeProviderOptions.DisableModeSetTool.set -> void [MAAI001]Microsoft.Agents.AI.FileLineEdit.ExpectedLine.set -> void [MAAI001]const Microsoft.Agents.AI.FileAccessProvider.ReadLinesToolName = "file_access_read_lines" -> string! [MAAI001]static Microsoft.Agents.AI.AIAgentExtensions.AsIChatClient(this Microsoft.Agents.AI.AIAgent! agent, Microsoft.Agents.AI.AgentSession? session = null, string? conversationId = null, bool allowNonChatClientAgents = false) -> Microsoft.Extensions.AI.IChatClient! -[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex) -> Microsoft.Agents.AI.FileSearchResult? +[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> Microsoft.Agents.AI.FileSearchResult? [MAAI001]static Microsoft.Agents.AI.AgentFileStore.SplitLines(string! content) -> System.Collections.Generic.IReadOnlyList! [MAAI001]static Microsoft.Agents.AI.OpenTelemetryAgent.DefaultSourceName.get -> string! [MAAI001]virtual Microsoft.Agents.AI.AgentFileStore.FindMatchingFilesAsync(string! directory, string! regexPattern, string? globPattern = null, bool recursive = false, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> System.Threading.Tasks.Task!>! diff --git a/dotnet/src/Microsoft.Agents.AI/PublicAPI/net8.0/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI/PublicAPI/net8.0/PublicAPI.Unshipped.txt index fada975c025..b83df49fe53 100644 --- a/dotnet/src/Microsoft.Agents.AI/PublicAPI/net8.0/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI/PublicAPI/net8.0/PublicAPI.Unshipped.txt @@ -17,7 +17,7 @@ Microsoft.Agents.AI.AgentModeProviderOptions.DisableModeSetTool.set -> void [MAAI001]Microsoft.Agents.AI.FileLineEdit.ExpectedLine.set -> void [MAAI001]const Microsoft.Agents.AI.FileAccessProvider.ReadLinesToolName = "file_access_read_lines" -> string! [MAAI001]static Microsoft.Agents.AI.AIAgentExtensions.AsIChatClient(this Microsoft.Agents.AI.AIAgent! agent, Microsoft.Agents.AI.AgentSession? session = null, string? conversationId = null, bool allowNonChatClientAgents = false) -> Microsoft.Extensions.AI.IChatClient! -[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex) -> Microsoft.Agents.AI.FileSearchResult? +[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> Microsoft.Agents.AI.FileSearchResult? [MAAI001]static Microsoft.Agents.AI.AgentFileStore.SplitLines(string! content) -> System.Collections.Generic.IReadOnlyList! [MAAI001]static Microsoft.Agents.AI.OpenTelemetryAgent.DefaultSourceName.get -> string! [MAAI001]virtual Microsoft.Agents.AI.AgentFileStore.FindMatchingFilesAsync(string! directory, string! regexPattern, string? globPattern = null, bool recursive = false, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> System.Threading.Tasks.Task!>! diff --git a/dotnet/src/Microsoft.Agents.AI/PublicAPI/net9.0/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI/PublicAPI/net9.0/PublicAPI.Unshipped.txt index fada975c025..b83df49fe53 100644 --- a/dotnet/src/Microsoft.Agents.AI/PublicAPI/net9.0/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI/PublicAPI/net9.0/PublicAPI.Unshipped.txt @@ -17,7 +17,7 @@ Microsoft.Agents.AI.AgentModeProviderOptions.DisableModeSetTool.set -> void [MAAI001]Microsoft.Agents.AI.FileLineEdit.ExpectedLine.set -> void [MAAI001]const Microsoft.Agents.AI.FileAccessProvider.ReadLinesToolName = "file_access_read_lines" -> string! [MAAI001]static Microsoft.Agents.AI.AIAgentExtensions.AsIChatClient(this Microsoft.Agents.AI.AIAgent! agent, Microsoft.Agents.AI.AgentSession? session = null, string? conversationId = null, bool allowNonChatClientAgents = false) -> Microsoft.Extensions.AI.IChatClient! -[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex) -> Microsoft.Agents.AI.FileSearchResult? +[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> Microsoft.Agents.AI.FileSearchResult? [MAAI001]static Microsoft.Agents.AI.AgentFileStore.SplitLines(string! content) -> System.Collections.Generic.IReadOnlyList! [MAAI001]static Microsoft.Agents.AI.OpenTelemetryAgent.DefaultSourceName.get -> string! [MAAI001]virtual Microsoft.Agents.AI.AgentFileStore.FindMatchingFilesAsync(string! directory, string! regexPattern, string? globPattern = null, bool recursive = false, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> System.Threading.Tasks.Task!>! diff --git a/dotnet/src/Microsoft.Agents.AI/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt b/dotnet/src/Microsoft.Agents.AI/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt index fada975c025..b83df49fe53 100644 --- a/dotnet/src/Microsoft.Agents.AI/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt +++ b/dotnet/src/Microsoft.Agents.AI/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt @@ -17,7 +17,7 @@ Microsoft.Agents.AI.AgentModeProviderOptions.DisableModeSetTool.set -> void [MAAI001]Microsoft.Agents.AI.FileLineEdit.ExpectedLine.set -> void [MAAI001]const Microsoft.Agents.AI.FileAccessProvider.ReadLinesToolName = "file_access_read_lines" -> string! [MAAI001]static Microsoft.Agents.AI.AIAgentExtensions.AsIChatClient(this Microsoft.Agents.AI.AIAgent! agent, Microsoft.Agents.AI.AgentSession? session = null, string? conversationId = null, bool allowNonChatClientAgents = false) -> Microsoft.Extensions.AI.IChatClient! -[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex) -> Microsoft.Agents.AI.FileSearchResult? +[MAAI001]static Microsoft.Agents.AI.AgentFileStore.ScanContent(string! fileName, string! content, System.Text.RegularExpressions.Regex! regex, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> Microsoft.Agents.AI.FileSearchResult? [MAAI001]static Microsoft.Agents.AI.AgentFileStore.SplitLines(string! content) -> System.Collections.Generic.IReadOnlyList! [MAAI001]static Microsoft.Agents.AI.OpenTelemetryAgent.DefaultSourceName.get -> string! [MAAI001]virtual Microsoft.Agents.AI.AgentFileStore.FindMatchingFilesAsync(string! directory, string! regexPattern, string? globPattern = null, bool recursive = false, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> System.Threading.Tasks.Task!>! diff --git a/dotnet/tests/Foundry.IntegrationTests/FoundryVersionedAgentCreateTests.cs b/dotnet/tests/Foundry.IntegrationTests/FoundryVersionedAgentCreateTests.cs index 2f6e0b918b2..6ec648a3867 100644 --- a/dotnet/tests/Foundry.IntegrationTests/FoundryVersionedAgentCreateTests.cs +++ b/dotnet/tests/Foundry.IntegrationTests/FoundryVersionedAgentCreateTests.cs @@ -189,31 +189,40 @@ public async Task AsAIAgent_WithOpenAPITool_NativeSDKCreation_InvokesServerSideT { // Arrange — create agent version with OpenAPI tool using native Azure.AI.Projects SDK types. string AgentName = FoundryVersionedAgentFixture.GenerateUniqueAgentName("OpenAPITestAgent"); - const string AgentInstructions = "You are a helpful assistant that can use the countries API to retrieve information about countries by their currency code."; + const string AgentInstructions = "You are a helpful assistant that uses the postal code API to retrieve location details. Always use the API when answering postal code questions."; - const string CountriesOpenApiSpec = """ + const string PostalCodeOpenApiSpec = """ { "openapi": "3.1.0", "info": { - "title": "REST Countries API", - "description": "Retrieve information about countries by currency code", - "version": "v3.1" + "title": "Zippopotam.us API", + "description": "Retrieve location details for a postal code", + "version": "1.0" }, "servers": [ { - "url": "https://restcountries.com/v3.1" + "url": "https://api.zippopotam.us" } ], "paths": { - "/currency/{currency}": { + "/{country}/{postalCode}": { "get": { - "description": "Get countries that use a specific currency code (e.g., USD, EUR, GBP)", - "operationId": "GetCountriesByCurrency", + "description": "Get location details for a postal code", + "operationId": "GetPostalCodeDetails", "parameters": [ { - "name": "currency", + "name": "country", "in": "path", - "description": "Currency code (e.g., USD, EUR, GBP)", + "description": "Two-letter country code", + "required": true, + "schema": { + "type": "string" + } + }, + { + "name": "postalCode", + "in": "path", + "description": "Postal code", "required": true, "schema": { "type": "string" @@ -222,20 +231,31 @@ public async Task AsAIAgent_WithOpenAPITool_NativeSDKCreation_InvokesServerSideT ], "responses": { "200": { - "description": "Successful response with list of countries", + "description": "Successful response with location details", "content": { "application/json": { "schema": { - "type": "array", - "items": { - "type": "object" + "type": "object", + "properties": { + "country": { + "type": "string" + }, + "post code": { + "type": "string" + }, + "places": { + "type": "array", + "items": { + "type": "object" + } + } } } } } }, "404": { - "description": "No countries found for the currency" + "description": "Postal code not found" } } } @@ -246,11 +266,11 @@ public async Task AsAIAgent_WithOpenAPITool_NativeSDKCreation_InvokesServerSideT // Step 1: Create the OpenAPI function definition and agent version using native SDK types. var openApiFunction = new OpenApiFunctionDefinition( - "get_countries", - BinaryData.FromString(CountriesOpenApiSpec), + "get_postal_code", + BinaryData.FromString(PostalCodeOpenApiSpec), new OpenApiAnonymousAuthenticationDetails()) { - Description = "Retrieve information about countries by currency code" + Description = "Retrieve location details for a postal code" }; var definition = new DeclarativeAgentDefinition(model: TestConfiguration.GetRequiredValue(TestSettings.AzureAIModelDeploymentName)) @@ -274,30 +294,19 @@ public async Task AsAIAgent_WithOpenAPITool_NativeSDKCreation_InvokesServerSideT Assert.NotNull(retrievedVersion); // Step 3: Call RunAsync to trigger the server-side OpenAPI function. - var result = await agent.RunAsync("What countries use the Euro (EUR) as their currency? Please list them."); + var result = await agent.RunAsync("Use the API to look up US postal code 90210. Include the place name, state, latitude, and longitude exactly as returned by the API."); // Step 4: Validate the OpenAPI tool was invoked server-side. // Note: Server-side OpenAPI tools (executed within the Responses API via AgentReference) // do not surface as FunctionCallContent in the MEAI abstraction — the API handles the full - // tool loop internally. We validate tool invocation by asserting the response contains - // multiple specific country names that the model would need API data to enumerate accurately. + // tool loop internally. We validate tool invocation using the exact location details returned + // by the API. var text = result.ToString(); Assert.NotEmpty(text); - - // The response must mention multiple well-known Eurozone countries — requiring several - // correct entries makes it highly unlikely the model answered purely from parametric knowledge. - int matchCount = 0; - foreach (var country in new[] { "Germany", "France", "Italy", "Spain", "Portugal", "Netherlands", "Belgium", "Austria", "Ireland", "Finland" }) - { - if (text.Contains(country, StringComparison.OrdinalIgnoreCase)) - { - matchCount++; - } - } - - Assert.True( - matchCount >= 3, - $"Expected response to list at least 3 Eurozone countries from the OpenAPI tool, but found {matchCount}. Response: {text}"); + Assert.Contains("Beverly Hills", text, StringComparison.OrdinalIgnoreCase); + Assert.Contains("California", text, StringComparison.OrdinalIgnoreCase); + Assert.Contains("34.0901", text, StringComparison.Ordinal); + Assert.Contains("-118.4065", text, StringComparison.Ordinal); } finally { diff --git a/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/A2AAgentTests.cs b/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/A2AAgentTests.cs index c2788603215..45782b4ef23 100644 --- a/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/A2AAgentTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/A2AAgentTests.cs @@ -149,6 +149,85 @@ public void Constructor_WithOptions_NullA2AClient_ThrowsArgumentNullException() // Act & Assert Assert.Throws(() => new A2AAgent(null!, new A2AAgentOptions())); + [Theory] + [InlineData(false, "empty messages")] + [InlineData(true, "empty messages")] + [InlineData(false, "empty contents")] + [InlineData(true, "empty contents")] + [InlineData(false, "multiple empty messages")] + [InlineData(true, "multiple empty messages")] + [InlineData(false, "unsupported contents")] + [InlineData(true, "unsupported contents")] + public async Task RunAsync_WithoutSupportedMessageParts_ThrowsArgumentExceptionAsync(bool streaming, string inputKind) + { + // Arrange + ChatMessage[] messages = inputKind switch + { + "empty messages" => [], + "empty contents" => [new(ChatRole.User, [])], + "multiple empty messages" => [new(ChatRole.System, []), new(ChatRole.User, [])], + "unsupported contents" => [new(ChatRole.User, [new UnsupportedAIContent()])], + _ => throw new ArgumentOutOfRangeException(nameof(inputKind)) + }; + + // Act + var exception = await Assert.ThrowsAsync(() => this.RunForMessageValidationAsync(messages, streaming)); + + // Assert + Assert.Equal("messages", exception.ParamName); + Assert.StartsWith( + "The provided messages contain no content that can be sent to the remote agent.", + exception.Message); + Assert.Empty(this._handler.CapturedJsonRpcRequests); + } + + [Theory] + [InlineData(false, "Hello")] + [InlineData(true, "Hello")] + [InlineData(false, "")] + [InlineData(true, "")] + [InlineData(false, " \t")] + [InlineData(true, " \t")] + public async Task RunAsync_WithTextPart_SendsMessageAsync(bool streaming, string text) + { + // Arrange + ChatMessage[] messages = [new(ChatRole.User, [new TextContent(text)])]; + this._handler.StreamingResponseToReturn = streaming ? new StreamResponse { Message = new Message() } : null; + + // Act + await this.RunForMessageValidationAsync(messages, streaming); + + // Assert + Assert.Single(this._handler.CapturedJsonRpcRequests); + var message = this._handler.CapturedSendMessageRequest?.Message; + Assert.NotNull(message); + Assert.Equal(text, Assert.Single(message.Parts).Text); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task RunAsync_WithMixedSupportedAndUnsupportedContents_SendsSupportedPartsAsync(bool streaming) + { + // Arrange + ChatMessage[] messages = + [ + new(ChatRole.System, []), + new(ChatRole.User, [new UnsupportedAIContent()]), + new(ChatRole.User, [new UnsupportedAIContent(), new TextContent("Hello")]) + ]; + this._handler.StreamingResponseToReturn = streaming ? new StreamResponse { Message = new Message() } : null; + + // Act + await this.RunForMessageValidationAsync(messages, streaming); + + // Assert + Assert.Single(this._handler.CapturedJsonRpcRequests); + var message = this._handler.CapturedSendMessageRequest?.Message; + Assert.NotNull(message); + Assert.Equal("Hello", Assert.Single(message.Parts).Text); + } + [Fact] public async Task RunAsync_AllowsNonUserRoleMessagesAsync() { @@ -552,6 +631,7 @@ public async Task RunAsync_WithContinuationToken_CallsGetTaskAsyncAsync() await this._agent.RunAsync([], options: options); // Assert + Assert.Single(this._handler.CapturedJsonRpcRequests); Assert.Equal("GetTask", this._handler.CapturedJsonRpcRequest?.Method); Assert.Equal("task-123", this._handler.CapturedGetTaskRequest?.Id); } @@ -731,6 +811,400 @@ public async Task RunAsync_WithVariousTaskStates_ReturnsCorrectTokenAsync(TaskSt } } + [Theory] + [InlineData(TaskState.InputRequired, false)] + [InlineData(TaskState.InputRequired, true)] + [InlineData(TaskState.AuthRequired, false)] + [InlineData(TaskState.AuthRequired, true)] + [InlineData(TaskState.Unspecified, false)] + [InlineData(TaskState.Unspecified, true)] + [InlineData(TaskState.Failed, false)] + [InlineData(TaskState.Failed, true)] + [InlineData(TaskState.Canceled, false)] + [InlineData(TaskState.Canceled, true)] + [InlineData(TaskState.Rejected, false)] + [InlineData(TaskState.Rejected, true)] + public async Task RunAsync_WithTaskStatusMessage_PreservesMessageAsync(TaskState state, bool continuation) + { + // Arrange + var task = new AgentTask + { + Id = "task-123", + ContextId = "context-123", + Metadata = new() { ["shared"] = JsonSerializer.SerializeToElement("task") }, + Artifacts = [new Artifact { Parts = [Part.FromText("Partial result")] }], + Status = new() + { + State = state, + Message = new Message + { + Role = Role.User, + MessageId = "status-message", + Metadata = new() + { + ["shared"] = JsonSerializer.SerializeToElement(new { code = "needs-attention" }), + ["message-only"] = JsonSerializer.SerializeToElement("message-value") + }, + Parts = [Part.FromText("Task status details.")] + } + } + }; + this._handler.ResponseToReturn = new SendMessageResponse { Task = task }; + this._handler.AgentTaskToReturn = task; + var session = (A2AAgentSession)await this._agent.CreateSessionAsync(); + + // Act + var response = continuation + ? await this._agent.RunAsync([], session, options: new() { ContinuationToken = new A2AContinuationToken(task.Id) }) + : await this._agent.RunAsync("Start a task", session); + + // Assert + Assert.Equal(2, response.Messages.Count); + Assert.Equal("Partial result", response.Messages[0].Text); + var statusMessage = response.Messages[1]; + Assert.Equal("Task status details.", statusMessage.Text); + Assert.Equal(ChatRole.User, statusMessage.Role); + Assert.Equal("status-message", statusMessage.MessageId); + Assert.NotNull(statusMessage.AdditionalProperties); + Assert.Equal(2, statusMessage.AdditionalProperties.Count); + Assert.Equal("message-value", Assert.IsType(statusMessage.AdditionalProperties["message-only"]).GetString()); + Assert.Equal("needs-attention", Assert.IsType(statusMessage.AdditionalProperties["shared"]).GetProperty("code").GetString()); + var rawTask = Assert.IsType(response.RawRepresentation); + Assert.Equal(state, rawTask.Status.State); + Assert.Same(rawTask.Status.Message, statusMessage.RawRepresentation); + Assert.Same(rawTask.Status.Message!.Parts[0], statusMessage.Contents[0].RawRepresentation); + Assert.Same(rawTask.Artifacts![0], response.Messages[0].RawRepresentation); + Assert.NotNull(response.AdditionalProperties); + Assert.Single(response.AdditionalProperties); + Assert.Equal("task", Assert.IsType(response.AdditionalProperties["shared"]).GetString()); + Assert.Null(response.ContinuationToken); + Assert.Null(response.FinishReason); + Assert.Equal(state, session.TaskState); + Assert.Equal(continuation ? "GetTask" : "SendMessage", this._handler.CapturedJsonRpcRequest?.Method); + } + + [Theory] + [InlineData(TaskState.Submitted, false)] + [InlineData(TaskState.Submitted, true)] + [InlineData(TaskState.Working, false)] + [InlineData(TaskState.Working, true)] + [InlineData(TaskState.Completed, false)] + [InlineData(TaskState.Completed, true)] + public async Task RunAsync_WithRoutineStatusMessage_ReturnsOnlyArtifactsAsync(TaskState state, bool continuation) + { + // Arrange + var task = new AgentTask + { + Id = "task-123", + ContextId = "context-123", + Metadata = new() { ["source"] = JsonSerializer.SerializeToElement("task") }, + Artifacts = [new Artifact { Parts = [Part.FromText("Task result")] }], + Status = new() + { + State = state, + Message = new Message + { + Role = Role.User, + MessageId = "status-message", + Metadata = new() + { + ["source"] = JsonSerializer.SerializeToElement("message"), + ["message-only"] = JsonSerializer.SerializeToElement("message-value") + }, + Parts = [Part.FromText("Routine status details.")] + } + } + }; + this._handler.ResponseToReturn = new SendMessageResponse { Task = task }; + this._handler.AgentTaskToReturn = task; + var session = (A2AAgentSession)await this._agent.CreateSessionAsync(); + + // Act + var response = continuation + ? await this._agent.RunAsync([], session, options: new() { ContinuationToken = new A2AContinuationToken(task.Id) }) + : await this._agent.RunAsync("Start a task", session); + + // Assert + var message = Assert.Single(response.Messages); + Assert.Equal("Task result", message.Text); + Assert.Equal(ChatRole.Assistant, message.Role); + Assert.Equal(task.Id, response.ResponseId); + Assert.NotNull(response.AdditionalProperties); + Assert.Single(response.AdditionalProperties); + Assert.Equal("task", Assert.IsType(response.AdditionalProperties["source"]).GetString()); + var rawTask = Assert.IsType(response.RawRepresentation); + Assert.Same(rawTask.Artifacts![0], message.RawRepresentation); + Assert.Equal("Routine status details.", rawTask.Status.Message!.Parts[0].Text); + Assert.Equal(state, session.TaskState); + Assert.Equal(continuation ? "GetTask" : "SendMessage", this._handler.CapturedJsonRpcRequest?.Method); + if (state == TaskState.Completed) + { + Assert.Equal(ChatFinishReason.Stop, response.FinishReason); + Assert.Null(response.ContinuationToken); + } + else + { + Assert.Null(response.FinishReason); + Assert.Equal(task.Id, Assert.IsType(response.ContinuationToken).TaskId); + } + } + + [Theory] + [InlineData(TaskState.InputRequired, false)] + [InlineData(TaskState.InputRequired, true)] + [InlineData(TaskState.AuthRequired, false)] + [InlineData(TaskState.AuthRequired, true)] + [InlineData(TaskState.Unspecified, false)] + [InlineData(TaskState.Unspecified, true)] + [InlineData(TaskState.Failed, false)] + [InlineData(TaskState.Failed, true)] + [InlineData(TaskState.Canceled, false)] + [InlineData(TaskState.Canceled, true)] + [InlineData(TaskState.Rejected, false)] + [InlineData(TaskState.Rejected, true)] + public async Task RunStreamingAsync_WithTaskStatusMessage_PreservesContentsAsync(TaskState state, bool statusUpdate) + { + // Arrange + var status = new global::A2A.TaskStatus + { + State = state, + Message = new Message + { + Role = Role.User, + MessageId = "status-message", + Metadata = new() + { + ["reason"] = JsonSerializer.SerializeToElement(new { code = "needs-attention" }), + ["shared"] = JsonSerializer.SerializeToElement("message") + }, + Parts = + [ + Part.FromText("Task status details."), + new Part + { + Data = JsonSerializer.SerializeToElement(new { retryable = false }), + Metadata = new() { ["part-key"] = JsonSerializer.SerializeToElement("part-value") } + } + ] + } + }; + Dictionary metadata = new() + { + ["event-key"] = JsonSerializer.SerializeToElement("event-value"), + ["shared"] = JsonSerializer.SerializeToElement("event") + }; + this._handler.StreamingResponseToReturn = statusUpdate + ? new StreamResponse + { + StatusUpdate = new TaskStatusUpdateEvent { TaskId = "task-123", ContextId = "context-123", Status = status, Metadata = metadata } + } + : new StreamResponse + { + Task = new AgentTask + { + Id = "task-123", + ContextId = "context-123", + Status = status, + Metadata = metadata, + Artifacts = [new Artifact { Parts = [Part.FromText("Partial result")] }] + } + }; + var session = (A2AAgentSession)await this._agent.CreateSessionAsync(); + + // Act + var updates = new List(); + await foreach (var update in this._agent.RunStreamingAsync("Start a task", session)) + { + updates.Add(update); + } + + // Assert + var result = Assert.Single(updates); + Assert.Equal("task-123", result.ResponseId); + Assert.Equal(statusUpdate ? "status-message" : null, result.MessageId); + Assert.Equal(ChatRole.Assistant, result.Role); + Assert.NotNull(result.AdditionalProperties); + Assert.Equal(2, result.AdditionalProperties.Count); + Assert.False(result.AdditionalProperties.ContainsKey("reason")); + Assert.Equal("event-value", Assert.IsType(result.AdditionalProperties["event-key"]).GetString()); + Assert.Equal("event", Assert.IsType(result.AdditionalProperties["shared"]).GetString()); + Assert.Null(result.ContinuationToken); + Assert.Null(result.FinishReason); + Assert.Equal(state, session.TaskState); + global::A2A.TaskStatus rawStatus; + if (statusUpdate) + { + Assert.Equal(2, result.Contents.Count); + var rawEvent = Assert.IsType(result.RawRepresentation); + rawStatus = rawEvent.Status; + Assert.Equal("event", rawEvent.Metadata!["shared"].GetString()); + } + else + { + Assert.Equal(3, result.Contents.Count); + Assert.Equal("Partial result", Assert.IsType(result.Contents[0]).Text); + var rawTask = Assert.IsType(result.RawRepresentation); + rawStatus = rawTask.Status; + Assert.Equal("event", rawTask.Metadata!["shared"].GetString()); + Assert.Same(rawTask.Artifacts![0].Parts[0], result.Contents[0].RawRepresentation); + } + + Assert.Equal(state, rawStatus.State); + Assert.NotNull(rawStatus.Message); + Assert.NotNull(rawStatus.Message.Metadata); + Assert.Equal("message", rawStatus.Message.Metadata["shared"].GetString()); + Assert.Equal("needs-attention", rawStatus.Message.Metadata["reason"].GetProperty("code").GetString()); + Assert.Equal("Task status details.", Assert.IsType(result.Contents[^2]).Text); + var structuredContent = Assert.IsType(result.Contents[^1]); + using var data = JsonDocument.Parse(structuredContent.Data); + Assert.False(data.RootElement.GetProperty("retryable").GetBoolean()); + Assert.NotNull(structuredContent.AdditionalProperties); + Assert.Equal("part-value", Assert.IsType(structuredContent.AdditionalProperties["part-key"]).GetString()); + Assert.Same(rawStatus.Message.Parts[1], structuredContent.RawRepresentation); + } + + [Theory] + [InlineData(TaskState.Submitted, false)] + [InlineData(TaskState.Submitted, true)] + [InlineData(TaskState.Working, false)] + [InlineData(TaskState.Working, true)] + [InlineData(TaskState.Completed, false)] + [InlineData(TaskState.Completed, true)] + public async Task RunStreamingAsync_WithRoutineStatusMessage_OmitsStatusContentsAsync(TaskState state, bool statusUpdate) + { + // Arrange + var status = new global::A2A.TaskStatus + { + State = state, + Message = new Message + { + Role = Role.User, + MessageId = "status-message", + Metadata = new() + { + ["source"] = JsonSerializer.SerializeToElement("message"), + ["message-only"] = JsonSerializer.SerializeToElement("message-value") + }, + Parts = [Part.FromText("Routine status details.")] + } + }; + Dictionary metadata = new() { ["source"] = JsonSerializer.SerializeToElement("task-or-event") }; + this._handler.StreamingResponseToReturn = statusUpdate + ? new StreamResponse + { + StatusUpdate = new TaskStatusUpdateEvent { TaskId = "task-123", ContextId = "context-123", Status = status, Metadata = metadata } + } + : new StreamResponse + { + Task = new AgentTask + { + Id = "task-123", + ContextId = "context-123", + Status = status, + Metadata = metadata, + Artifacts = [new Artifact { Parts = [Part.FromText("Task result")] }] + } + }; + var session = (A2AAgentSession)await this._agent.CreateSessionAsync(); + + // Act + var updates = new List(); + await foreach (var update in this._agent.RunStreamingAsync("Start a task", session)) + { + updates.Add(update); + } + + // Assert + var result = Assert.Single(updates); + Assert.Equal("task-123", result.ResponseId); + Assert.Equal(ChatRole.Assistant, result.Role); + Assert.Equal(statusUpdate ? "status-message" : null, result.MessageId); + Assert.NotNull(result.AdditionalProperties); + Assert.Single(result.AdditionalProperties); + Assert.Equal("task-or-event", Assert.IsType(result.AdditionalProperties["source"]).GetString()); + Assert.Equal(state == TaskState.Completed ? ChatFinishReason.Stop : null, result.FinishReason); + Assert.Equal(state, session.TaskState); + if (statusUpdate) + { + Assert.Empty(result.Contents); + Assert.Equal(state, Assert.IsType(result.RawRepresentation).Status.State); + } + else + { + var content = Assert.IsType(Assert.Single(result.Contents)); + Assert.Equal("Task result", content.Text); + var rawTask = Assert.IsType(result.RawRepresentation); + Assert.Same(rawTask.Artifacts![0].Parts[0], content.RawRepresentation); + Assert.Equal(state, rawTask.Status.State); + } + + if (!statusUpdate && state != TaskState.Completed) + { + Assert.Equal("task-123", Assert.IsType(result.ContinuationToken).TaskId); + } + else + { + Assert.Null(result.ContinuationToken); + } + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task RunStreamingAsync_WithOnlyStatusMessageMetadata_KeepsMetadataInRawRepresentationAsync(bool statusUpdate) + { + // Arrange + var status = new global::A2A.TaskStatus + { + State = TaskState.Failed, + Message = new Message + { + Role = Role.Agent, + MessageId = "status-message", + Metadata = new() { ["reason"] = JsonSerializer.SerializeToElement(new { code = "needs-attention" }) }, + Parts = [Part.FromText("The task could not finish.")] + } + }; + this._handler.StreamingResponseToReturn = statusUpdate + ? new StreamResponse { StatusUpdate = new TaskStatusUpdateEvent { TaskId = "task-123", ContextId = "context-123", Status = status } } + : new StreamResponse { Task = new AgentTask { Id = "task-123", ContextId = "context-123", Status = status } }; + + // Act + var updates = new List(); + await foreach (var update in this._agent.RunStreamingAsync("Start a task")) + { + updates.Add(update); + } + + // Assert + var result = Assert.Single(updates); + Assert.Equal("task-123", result.ResponseId); + Assert.Equal(statusUpdate ? "status-message" : null, result.MessageId); + Assert.Equal(ChatRole.Assistant, result.Role); + Assert.Equal("The task could not finish.", Assert.IsType(Assert.Single(result.Contents)).Text); + Message? rawMessage; + if (statusUpdate) + { + Assert.NotNull(result.AdditionalProperties); + Assert.Empty(result.AdditionalProperties); + var rawEvent = Assert.IsType(result.RawRepresentation); + Assert.Null(rawEvent.Metadata); + rawMessage = rawEvent.Status.Message; + } + else + { + Assert.Null(result.AdditionalProperties); + var rawTask = Assert.IsType(result.RawRepresentation); + Assert.Null(rawTask.Metadata); + rawMessage = rawTask.Status.Message; + } + + Assert.NotNull(rawMessage); + Assert.NotNull(rawMessage.Metadata); + Assert.Single(rawMessage.Metadata); + Assert.Equal("needs-attention", rawMessage.Metadata["reason"].GetProperty("code").GetString()); + } + [Fact] public async Task RunStreamingAsync_WithContinuationTokenAndMessages_ThrowsInvalidOperationExceptionAsync() { @@ -1079,7 +1553,17 @@ public async Task RunStreamingAsync_WithAgentTask_YieldsResponseUpdateAsync() { Id = TaskId, ContextId = ContextId, - Status = new() { State = TaskState.Submitted }, + Status = new() + { + State = TaskState.Submitted, + Message = new Message + { + Role = Role.User, + MessageId = "task-status-message", + Metadata = new() { ["message-key"] = JsonSerializer.SerializeToElement("message-value") }, + Parts = [Part.FromText("Task submitted.")] + } + }, Artifacts = [ new() { @@ -1104,6 +1588,9 @@ public async Task RunStreamingAsync_WithAgentTask_YieldsResponseUpdateAsync() var update0 = updates[0]; Assert.Equal(ChatRole.Assistant, update0.Role); + Assert.Null(update0.MessageId); + Assert.Single(update0.Contents); + Assert.True(update0.AdditionalProperties is null or { Count: 0 }); Assert.Equal(TaskId, update0.ResponseId); Assert.Equal(this._agent.Id, update0.AgentId); Assert.Null(update0.FinishReason); @@ -1173,12 +1660,15 @@ public async Task RunStreamingAsync_WithTaskStatusUpdateEventAndMessageId_Yields { TaskId = TaskId, ContextId = ContextId, + Metadata = new() { ["event-key"] = JsonSerializer.SerializeToElement("event-value") }, Status = new() { State = TaskState.Working, Message = new Message { + Role = Role.User, MessageId = ExpectedMessageId, + Metadata = new() { ["message-key"] = JsonSerializer.SerializeToElement("message-value") }, Parts = [Part.FromText("Processing your request...")] } } @@ -1200,6 +1690,11 @@ public async Task RunStreamingAsync_WithTaskStatusUpdateEventAndMessageId_Yields var update0 = updates[0]; Assert.Equal(ExpectedMessageId, update0.MessageId); Assert.Equal(TaskId, update0.ResponseId); + Assert.Equal(ChatRole.Assistant, update0.Role); + Assert.Empty(update0.Contents); + Assert.NotNull(update0.AdditionalProperties); + Assert.Single(update0.AdditionalProperties); + Assert.Equal("event-value", Assert.IsType(update0.AdditionalProperties["event-key"]).GetString()); Assert.IsType(update0.RawRepresentation); } @@ -1889,6 +2384,22 @@ public void Dispose() this._httpClient.Dispose(); } + private async Task RunForMessageValidationAsync(IEnumerable messages, bool streaming) + { + if (streaming) + { + await foreach (var _ in this._agent.RunStreamingAsync(messages)) + { + } + } + else + { + await this._agent.RunAsync(messages); + } + } + + private sealed class UnsupportedAIContent : AIContent; + /// /// Custom agent session class for testing invalid session type scenario. /// diff --git a/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/Extensions/A2AAgentTaskExtensionsTests.cs b/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/Extensions/A2AAgentTaskExtensionsTests.cs index b1c895b6acf..152500aea72 100644 --- a/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/Extensions/A2AAgentTaskExtensionsTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/Extensions/A2AAgentTaskExtensionsTests.cs @@ -3,6 +3,7 @@ using System; using System.Collections.Generic; using System.Linq; +using System.Text.Json; using A2A; using Microsoft.Extensions.AI; @@ -168,8 +169,20 @@ public void ToAIContents_WithMultipleArtifacts_FlattenAllContents() Assert.Equal("content3", result[2].ToString()); } - [Fact] - public void ToChatMessages_WithInputRequiredStatus_IncludesStatusContents() + [Theory] + [InlineData(TaskState.InputRequired, Role.Agent)] + [InlineData(TaskState.InputRequired, Role.User)] + [InlineData(TaskState.AuthRequired, Role.Agent)] + [InlineData(TaskState.AuthRequired, Role.User)] + [InlineData(TaskState.Unspecified, Role.Agent)] + [InlineData(TaskState.Unspecified, Role.User)] + [InlineData(TaskState.Failed, Role.Agent)] + [InlineData(TaskState.Failed, Role.User)] + [InlineData(TaskState.Canceled, Role.Agent)] + [InlineData(TaskState.Canceled, Role.User)] + [InlineData(TaskState.Rejected, Role.Agent)] + [InlineData(TaskState.Rejected, Role.User)] + public void ToChatMessages_WithStatusMessage_IncludesStatusContents(TaskState state, Role role) { // Arrange var agentTask = new AgentTask @@ -178,8 +191,14 @@ public void ToChatMessages_WithInputRequiredStatus_IncludesStatusContents() Artifacts = null, Status = new TaskStatus { - State = TaskState.InputRequired, - Message = new Message { Parts = [Part.FromText("What is your destination?")] }, + State = state, + Message = new Message + { + Role = role, + MessageId = "status-message", + Metadata = new() { ["reason"] = JsonSerializer.SerializeToElement(new { code = "needs-attention" }) }, + Parts = [Part.FromText("What is your destination?")] + }, }, }; @@ -188,14 +207,25 @@ public void ToChatMessages_WithInputRequiredStatus_IncludesStatusContents() // Assert Assert.NotNull(result); - Assert.Single(result); - Assert.Equal(ChatRole.Assistant, result[0].Role); - var textContent = Assert.Single(result[0].Contents.OfType()); + var message = Assert.Single(result); + Assert.Equal(role == Role.Agent ? ChatRole.Assistant : ChatRole.User, message.Role); + Assert.Equal("status-message", message.MessageId); + Assert.Same(agentTask.Status.Message, message.RawRepresentation); + Assert.NotNull(message.AdditionalProperties); + Assert.Equal("needs-attention", Assert.IsType(message.AdditionalProperties["reason"]).GetProperty("code").GetString()); + var textContent = Assert.Single(message.Contents.OfType()); Assert.Equal("What is your destination?", textContent.Text); + Assert.Same(agentTask.Status.Message.Parts[0], textContent.RawRepresentation); } - [Fact] - public void ToAIContents_WithInputRequiredStatus_IncludesStatusContents() + [Theory] + [InlineData(TaskState.InputRequired)] + [InlineData(TaskState.AuthRequired)] + [InlineData(TaskState.Unspecified)] + [InlineData(TaskState.Failed)] + [InlineData(TaskState.Canceled)] + [InlineData(TaskState.Rejected)] + public void ToAIContents_WithStatusMessage_IncludesStatusContents(TaskState state) { // Arrange var agentTask = new AgentTask @@ -204,7 +234,7 @@ public void ToAIContents_WithInputRequiredStatus_IncludesStatusContents() Artifacts = null, Status = new TaskStatus { - State = TaskState.InputRequired, + State = state, Message = new Message { Parts = [Part.FromText("What is your destination?")] }, }, }; @@ -218,8 +248,14 @@ public void ToAIContents_WithInputRequiredStatus_IncludesStatusContents() Assert.Equal("What is your destination?", textContent.Text); } - [Fact] - public void ToChatMessages_WithArtifactsAndInputRequired_IncludesBoth() + [Theory] + [InlineData(TaskState.InputRequired)] + [InlineData(TaskState.AuthRequired)] + [InlineData(TaskState.Unspecified)] + [InlineData(TaskState.Failed)] + [InlineData(TaskState.Canceled)] + [InlineData(TaskState.Rejected)] + public void ToChatMessages_WithArtifactsAndStatusMessage_IncludesBoth(TaskState state) { // Arrange var agentTask = new AgentTask @@ -228,7 +264,7 @@ public void ToChatMessages_WithArtifactsAndInputRequired_IncludesBoth() Artifacts = [new Artifact { Parts = [Part.FromText("partial result")] }], Status = new TaskStatus { - State = TaskState.InputRequired, + State = state, Message = new Message { Parts = [Part.FromText("Need more info")] }, }, }; @@ -240,6 +276,61 @@ public void ToChatMessages_WithArtifactsAndInputRequired_IncludesBoth() Assert.NotNull(result); Assert.Equal(2, result.Count); Assert.Equal("partial result", result[0].Text); - Assert.Single(result[1].Contents.OfType()); + Assert.Equal("Need more info", Assert.Single(result[1].Contents.OfType()).Text); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public void WithNullOrEmptyStatusMessage_PreservesArtifacts(bool emptyMessage) + { + // Arrange + var part = Part.FromText("Partial result"); + part.Metadata = new() { ["part-key"] = JsonSerializer.SerializeToElement("part-value") }; + var artifact = new Artifact + { + Metadata = new() { ["artifact-key"] = JsonSerializer.SerializeToElement("artifact-value") }, + Parts = [part] + }; + var task = new AgentTask + { + Id = "task1", + Artifacts = [artifact], + Status = new TaskStatus + { + State = TaskState.Failed, + Message = emptyMessage + ? new Message + { + Role = Role.User, + MessageId = "empty-status", + Metadata = new() { ["reason"] = JsonSerializer.SerializeToElement("failure") }, + Parts = [] + } + : null + } + }; + + // Act + var messages = task.ToChatMessages(); + var contents = task.ToAIContents(); + + // Assert + Assert.NotNull(messages); + var message = Assert.Single(messages); + Assert.Equal("Partial result", message.Text); + Assert.Equal(ChatRole.Assistant, message.Role); + Assert.Null(message.MessageId); + Assert.Same(artifact, message.RawRepresentation); + Assert.NotNull(message.AdditionalProperties); + Assert.Single(message.AdditionalProperties); + Assert.Equal("artifact-value", Assert.IsType(message.AdditionalProperties["artifact-key"]).GetString()); + Assert.NotNull(contents); + var content = Assert.IsType(Assert.Single(contents)); + Assert.Equal("Partial result", content.Text); + Assert.Same(part, content.RawRepresentation); + Assert.NotNull(content.AdditionalProperties); + Assert.Single(content.AdditionalProperties); + Assert.Equal("part-value", Assert.IsType(content.AdditionalProperties["part-key"]).GetString()); } } diff --git a/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/Extensions/AgentTaskStatusExtensionsTests.cs b/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/Extensions/AgentTaskStatusExtensionsTests.cs index 048c0a70586..a0acddf3c92 100644 --- a/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/Extensions/AgentTaskStatusExtensionsTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.A2A.UnitTests/Extensions/AgentTaskStatusExtensionsTests.cs @@ -1,6 +1,8 @@ // Copyright (c) Microsoft. All rights reserved. +using System; using System.Collections.Generic; +using System.Text.Json; using A2A; using Microsoft.Extensions.AI; @@ -12,46 +14,71 @@ namespace Microsoft.Agents.AI.A2A.UnitTests; public sealed class AgentTaskStatusExtensionsTests { [Fact] - public void GetUserInputRequests_WithNullMessage_ReturnsNull() + public void ToChatMessage_WithNullStatus_ThrowsArgumentNullException() + { + // Arrange + TaskStatus status = null!; + + // Act & Assert + Assert.Throws(() => status.ToChatMessage()); + } + + [Theory] + [InlineData(TaskState.InputRequired)] + [InlineData(TaskState.AuthRequired)] + [InlineData(TaskState.Unspecified)] + [InlineData(TaskState.Failed)] + [InlineData(TaskState.Canceled)] + [InlineData(TaskState.Rejected)] + public void ToChatMessage_WithNullMessage_ReturnsNull(TaskState state) { // Arrange var status = new TaskStatus { - State = TaskState.InputRequired, + State = state, Message = null, }; // Act - IList? result = status.GetUserInputRequests(); + ChatMessage? result = status.ToChatMessage(); // Assert Assert.Null(result); } - [Fact] - public void GetUserInputRequests_WithNotInputRequiredState_ReturnsNull() + [Theory] + [InlineData(TaskState.Submitted)] + [InlineData(TaskState.Working)] + [InlineData(TaskState.Completed)] + public void ToChatMessage_WithOtherStates_ReturnsNull(TaskState state) { // Arrange var status = new TaskStatus { - State = TaskState.Completed, + State = state, Message = new Message { Parts = [Part.FromText("Some text")] }, }; // Act - IList? result = status.GetUserInputRequests(); + ChatMessage? result = status.ToChatMessage(); // Assert Assert.Null(result); } - [Fact] - public void GetUserInputRequests_WithInputRequiredStateAndMultipleRequests_ReturnsAIContentList() + [Theory] + [InlineData(TaskState.InputRequired)] + [InlineData(TaskState.AuthRequired)] + [InlineData(TaskState.Unspecified)] + [InlineData(TaskState.Failed)] + [InlineData(TaskState.Canceled)] + [InlineData(TaskState.Rejected)] + public void ToChatMessage_WithStatusMessage_ReturnsStatusContents(TaskState state) { // Arrange var status = new TaskStatus { - State = TaskState.InputRequired, + State = state, Message = new Message { Parts = @@ -64,56 +91,140 @@ public void GetUserInputRequests_WithInputRequiredStateAndMultipleRequests_Retur }; // Act - IList? result = status.GetUserInputRequests(); + ChatMessage? result = status.ToChatMessage(); // Assert Assert.NotNull(result); - Assert.Equal(3, result.Count); - Assert.Equal("First request", Assert.IsType(result[0]).Text); - Assert.Equal("Second request", Assert.IsType(result[1]).Text); - Assert.Equal("Third request", Assert.IsType(result[2]).Text); + Assert.Equal(3, result.Contents.Count); + Assert.Equal("First request", Assert.IsType(result.Contents[0]).Text); + Assert.Equal("Second request", Assert.IsType(result.Contents[1]).Text); + Assert.Equal("Third request", Assert.IsType(result.Contents[2]).Text); } - [Fact] - public void GetUserInputRequests_WithTextParts_SetsRawRepresentationAndAdditionalPropertiesCorrectly() + [Theory] + [InlineData(TaskState.InputRequired)] + [InlineData(TaskState.AuthRequired)] + [InlineData(TaskState.Unspecified)] + [InlineData(TaskState.Failed)] + [InlineData(TaskState.Canceled)] + [InlineData(TaskState.Rejected)] + public void ToChatMessage_WithTextParts_SetsRawRepresentationAndAdditionalPropertiesCorrectly(TaskState state) { // Arrange var textPart = Part.FromText("Input request"); - textPart.Metadata = new Dictionary + textPart.Metadata = new() { - { "key1", System.Text.Json.JsonSerializer.SerializeToElement("value1") }, - { "key2", System.Text.Json.JsonSerializer.SerializeToElement("value2") } + { "key1", JsonSerializer.SerializeToElement("value1") }, + { "key2", JsonSerializer.SerializeToElement("value2") } }; var status = new TaskStatus { - State = TaskState.InputRequired, + State = state, Message = new Message { Parts = [textPart] }, }; // Act - IList? result = status.GetUserInputRequests(); + ChatMessage? result = status.ToChatMessage(); // Assert Assert.NotNull(result); - var content = Assert.IsType(result[0]); - Assert.Equal(textPart, content.RawRepresentation); + var content = Assert.IsType(result.Contents[0]); + Assert.Same(textPart, content.RawRepresentation); Assert.NotNull(content.AdditionalProperties); - Assert.True(content.AdditionalProperties.ContainsKey("key1")); - Assert.True(content.AdditionalProperties.ContainsKey("key2")); + Assert.Equal("value1", Assert.IsType(content.AdditionalProperties["key1"]).GetString()); + Assert.Equal("value2", Assert.IsType(content.AdditionalProperties["key2"]).GetString()); } - [Fact] - public void GetUserInputRequests_WithEmptyMessageParts_ReturnsNull() + [Theory] + [InlineData(TaskState.InputRequired)] + [InlineData(TaskState.AuthRequired)] + [InlineData(TaskState.Unspecified)] + [InlineData(TaskState.Failed)] + [InlineData(TaskState.Canceled)] + [InlineData(TaskState.Rejected)] + public void ToChatMessage_WithNonTextParts_PreservesContentAndMetadata(TaskState state) + { + // Arrange + byte[] bytes = [1, 2, 3]; + var binaryPart = Part.FromRaw(bytes, "application/octet-stream"); + binaryPart.Filename = "details.bin"; + List parts = + [ + Part.FromUrl("https://example.com/details.pdf", "application/pdf"), + binaryPart, + Part.FromData(JsonSerializer.SerializeToElement(new { action = "retry", retryable = true })) + ]; + foreach (var part in parts) + { + part.Metadata = new() { ["part-key"] = JsonSerializer.SerializeToElement("part-value") }; + } + + var status = new TaskStatus + { + State = state, + Message = new Message + { + Role = Role.Agent, + MessageId = "status-message", + Metadata = new() { ["reason"] = JsonSerializer.SerializeToElement(new { code = "needs-attention" }) }, + Parts = parts + } + }; + + // Act + var result = status.ToChatMessage(); + + // Assert + Assert.NotNull(result); + Assert.Equal(ChatRole.Assistant, result.Role); + Assert.Equal("status-message", result.MessageId); + Assert.Same(status.Message, result.RawRepresentation); + Assert.NotNull(result.AdditionalProperties); + Assert.Single(result.AdditionalProperties); + Assert.Equal("needs-attention", Assert.IsType(result.AdditionalProperties["reason"]).GetProperty("code").GetString()); + Assert.Equal(3, result.Contents.Count); + + var uriContent = Assert.IsType(result.Contents[0]); + Assert.Equal(new Uri("https://example.com/details.pdf"), uriContent.Uri); + Assert.Equal("application/pdf", uriContent.MediaType); + var binaryContent = Assert.IsType(result.Contents[1]); + Assert.Equal(bytes, binaryContent.Data.ToArray()); + Assert.Equal("details.bin", binaryContent.Name); + Assert.Equal("application/octet-stream", binaryContent.MediaType); + var jsonContent = Assert.IsType(result.Contents[2]); + Assert.Equal("application/json", jsonContent.MediaType); + using var data = JsonDocument.Parse(jsonContent.Data); + Assert.Equal("retry", data.RootElement.GetProperty("action").GetString()); + Assert.True(data.RootElement.GetProperty("retryable").GetBoolean()); + + for (int i = 0; i < parts.Count; i++) + { + Assert.Same(parts[i], result.Contents[i].RawRepresentation); + var metadata = result.Contents[i].AdditionalProperties; + Assert.NotNull(metadata); + Assert.Single(metadata); + Assert.Equal("part-value", Assert.IsType(metadata["part-key"]).GetString()); + } + } + + [Theory] + [InlineData(TaskState.InputRequired)] + [InlineData(TaskState.AuthRequired)] + [InlineData(TaskState.Unspecified)] + [InlineData(TaskState.Failed)] + [InlineData(TaskState.Canceled)] + [InlineData(TaskState.Rejected)] + public void ToChatMessage_WithEmptyMessageParts_ReturnsNull(TaskState state) { // Arrange var status = new TaskStatus { - State = TaskState.InputRequired, + State = state, Message = new Message { Parts = [] }, }; // Act - IList? result = status.GetUserInputRequests(); + ChatMessage? result = status.ToChatMessage(); // Assert Assert.Null(result); diff --git a/dotnet/tests/Microsoft.Agents.AI.Foundry.UnitTests/Memory/FoundryMemoryProviderTests.cs b/dotnet/tests/Microsoft.Agents.AI.Foundry.UnitTests/Memory/FoundryMemoryProviderTests.cs index 0b55a5ea02c..144752274a2 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Foundry.UnitTests/Memory/FoundryMemoryProviderTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Foundry.UnitTests/Memory/FoundryMemoryProviderTests.cs @@ -2,6 +2,7 @@ using System; using System.Linq; +using System.Threading; using System.Threading.Tasks; using Microsoft.Extensions.AI; using Microsoft.Extensions.Logging; @@ -90,6 +91,90 @@ public async Task InvokingAsync_WhenSearchReturnsMemories_InjectsMemoryMessageAs messages[1].Text); } + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task InvokingAsync_WhenRequestIsCanceled_PropagatesOnlyCallerCancellationAsync(bool cancelCaller) + { + // Arrange + using var cts = new CancellationTokenSource(); + using TestableAIProjectClient testClient = new(); + testClient.Handler.OnSend = cancellationToken => + { + if (cancelCaller) + { + cts.Cancel(); + cancellationToken.ThrowIfCancellationRequested(); + } + + throw new TaskCanceledException("Request timed out."); + }; + Mock logger = new(); + logger.Setup(value => value.IsEnabled(LogLevel.Error)).Returns(true); + Mock loggerFactory = new(); + loggerFactory.Setup(factory => factory.CreateLogger(It.IsAny())).Returns(logger.Object); + FoundryMemoryProvider sut = new(testClient.Client, "store", _ => new(new FoundryMemoryProviderScope("test")), loggerFactory: loggerFactory.Object); + var context = CreateInvokingContext(); + + // Act & Assert + if (cancelCaller) + { + await Assert.ThrowsAnyAsync(() => sut.InvokingAsync(context, cts.Token).AsTask()); + } + else + { + var result = await sut.InvokingAsync(context, cts.Token); + Assert.Same(Assert.Single(context.AIContext.Messages!), Assert.Single(result.Messages!)); + } + + Assert.Contains(":search_memories", testClient.Handler.LastRequestUri!); + logger.Verify( + value => value.Log(LogLevel.Error, It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny>()), + cancelCaller ? Times.Never() : Times.Once()); + } + + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task InvokedAsync_WhenRequestIsCanceled_PropagatesOnlyCallerCancellationAsync(bool cancelCaller) + { + // Arrange + using var cts = new CancellationTokenSource(); + using TestableAIProjectClient testClient = new(); + testClient.Handler.OnSend = cancellationToken => + { + if (cancelCaller) + { + cts.Cancel(); + cancellationToken.ThrowIfCancellationRequested(); + } + + throw new TaskCanceledException("Request timed out."); + }; + Mock logger = new(); + logger.Setup(value => value.IsEnabled(LogLevel.Error)).Returns(true); + Mock loggerFactory = new(); + loggerFactory.Setup(factory => factory.CreateLogger(It.IsAny())).Returns(logger.Object); + FoundryMemoryProvider sut = new(testClient.Client, "store", _ => new(new FoundryMemoryProviderScope("test")), loggerFactory: loggerFactory.Object); + var invokingContext = CreateInvokingContext(); + var context = new AIContextProvider.InvokedContext(invokingContext.Agent, invokingContext.Session, invokingContext.AIContext.Messages!, []); + + // Act & Assert + if (cancelCaller) + { + await Assert.ThrowsAnyAsync(() => sut.InvokedAsync(context, cts.Token).AsTask()); + } + else + { + await sut.InvokedAsync(context, cts.Token); + } + + Assert.Contains(":update_memories", testClient.Handler.LastRequestUri!); + logger.Verify( + value => value.Log(LogLevel.Error, It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny>()), + cancelCaller ? Times.Never() : Times.Once()); + } + [Fact] public void Constructor_Throws_WhenClientIsNull() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Foundry.UnitTests/Memory/TestableAIProjectClient.cs b/dotnet/tests/Microsoft.Agents.AI.Foundry.UnitTests/Memory/TestableAIProjectClient.cs index c1ad67a3b79..a03a43c83f6 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Foundry.UnitTests/Memory/TestableAIProjectClient.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Foundry.UnitTests/Memory/TestableAIProjectClient.cs @@ -97,11 +97,13 @@ public MockHttpMessageHandler( public string? LastRequestUri { get; private set; } public string? LastRequestBody { get; private set; } public HttpMethod? LastRequestMethod { get; private set; } + public Action? OnSend { get; set; } protected override async Task SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) { this.LastRequestUri = request.RequestUri?.ToString(); this.LastRequestMethod = request.Method; + this.OnSend?.Invoke(cancellationToken); if (request.Content != null) { diff --git a/dotnet/tests/Microsoft.Agents.AI.Hosting.A2A.UnitTests/A2AEndpointRouteBuilderExtensionsTests.cs b/dotnet/tests/Microsoft.Agents.AI.Hosting.A2A.UnitTests/A2AEndpointRouteBuilderExtensionsTests.cs index 9d61932417e..bfa9953352f 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Hosting.A2A.UnitTests/A2AEndpointRouteBuilderExtensionsTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Hosting.A2A.UnitTests/A2AEndpointRouteBuilderExtensionsTests.cs @@ -1,8 +1,19 @@ // Copyright (c) Microsoft. All rights reserved. using System; +using System.Linq; +using System.Net; +using System.Net.Http; +using System.Text; +using System.Text.Json; +using System.Threading; +using System.Threading.Tasks; +using A2A; +using A2A.AspNetCore; using Microsoft.Agents.AI.Hosting.A2A.UnitTests.Internal; using Microsoft.AspNetCore.Builder; +using Microsoft.AspNetCore.Routing; +using Microsoft.AspNetCore.TestHost; using Microsoft.Extensions.AI; using Microsoft.Extensions.DependencyInjection; using Moq; @@ -14,6 +25,84 @@ namespace Microsoft.Agents.AI.Hosting.A2A.UnitTests; /// public sealed class A2AEndpointRouteBuilderExtensionsTests { + [Theory] + [InlineData(false, false, false)] + [InlineData(true, false, false)] + [InlineData(false, true, false)] + [InlineData(true, true, false)] + [InlineData(false, true, true)] + [InlineData(true, true, true)] + public async Task MapA2A_WithServerOptions_RejectsUnsupportedRequestsBeforeInvokingHandlerAsync( + bool jsonRpc, bool streaming, bool supportsStreaming) + { + // Arrange + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)); + var (app, handler) = await CreateServerOptionsTestHostAsync(supportsStreaming, cts.Token); + await using var appScope = app; + using var client = app.GetTestClient(); + bool streamingDisabled = streaming && !supportsStreaming; + Part part = streamingDisabled ? Part.FromText("Hello") : Part.FromRaw([1, 2, 3], "image/png"); + + // Act + using var response = await SendServerOptionsTestRequestAsync(client, jsonRpc, streaming, part, cts.Token); + string body = await response.Content.ReadAsStringAsync(cts.Token); + + // Assert + Assert.Equal(jsonRpc ? "application/json" : "application/a2a+json", response.Content.Headers.ContentType?.MediaType); + using var document = JsonDocument.Parse(body); + JsonElement error = document.RootElement.GetProperty("error"); + if (jsonRpc) + { + Assert.Equal(HttpStatusCode.OK, response.StatusCode); + Assert.Equal( + (int)(streamingDisabled ? A2AErrorCode.UnsupportedOperation : A2AErrorCode.ContentTypeNotSupported), + error.GetProperty("code").GetInt32()); + } + else + { + Assert.False(response.IsSuccessStatusCode); + Assert.Contains(error.GetProperty("details").EnumerateArray(), detail => + string.Equals(detail.GetProperty("reason").GetString(), + streamingDisabled ? "UNSUPPORTED_OPERATION" : "CONTENT_TYPE_NOT_SUPPORTED", StringComparison.Ordinal)); + } + + handler.Verify(h => h.ExecuteAsync( + It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Theory] + [InlineData(false, false)] + [InlineData(true, false)] + [InlineData(false, true)] + [InlineData(true, true)] + public async Task MapA2A_WithServerOptions_AcceptsTextAndExplicitlyEnabledStreamingAsync(bool jsonRpc, bool streaming) + { + // Arrange + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)); + var (app, handler) = await CreateServerOptionsTestHostAsync(supportsStreaming: streaming, cts.Token); + await using var appScope = app; + using var client = app.GetTestClient(); + + // Act + using var response = await SendServerOptionsTestRequestAsync(client, jsonRpc, streaming, Part.FromText("Hello"), cts.Token); + string body = await response.Content.ReadAsStringAsync(cts.Token); + using var cardResponse = await client.GetAsync(new Uri("/.well-known/agent-card.json", UriKind.Relative), cts.Token); + string cardJson = await cardResponse.Content.ReadAsStringAsync(cts.Token); + + // Assert + Assert.Equal(HttpStatusCode.OK, response.StatusCode); + Assert.Contains("Reply", body); + Assert.Equal( + streaming ? "text/event-stream" : jsonRpc ? "application/json" : "application/a2a+json", + response.Content.Headers.ContentType?.MediaType); + cardResponse.EnsureSuccessStatusCode(); + using var cardDocument = JsonDocument.Parse(cardJson); + Assert.Equal(streaming, cardDocument.RootElement.GetProperty("capabilities").GetProperty("streaming").GetBoolean()); + Assert.Equal("text/plain", Assert.Single(cardDocument.RootElement.GetProperty("defaultInputModes").EnumerateArray()).GetString()); + handler.Verify(h => h.ExecuteAsync( + It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + } + [Fact] public void MapA2AJsonRpc_MarksFeatureUsed() { @@ -57,7 +146,7 @@ private static void AssertFeatureUsed(int featureIndex) public void MapA2AHttpJson_WithAgentBuilder_NullEndpoints_ThrowsArgumentNullException() { // Arrange - AspNetCore.Routing.IEndpointRouteBuilder endpoints = null!; + IEndpointRouteBuilder endpoints = null!; WebApplicationBuilder builder = WebApplication.CreateBuilder(); IChatClient mockChatClient = new DummyChatClient(); builder.Services.AddKeyedSingleton("chat-client", mockChatClient); @@ -93,10 +182,10 @@ public void MapA2AHttpJson_WithAgentBuilder_NullAgentBuilder_ThrowsArgumentNullE } /// - /// Verifies that MapA2AHttpJson with IHostedAgentBuilder correctly maps the agent with default configuration. + /// Verifies that MapA2AHttpJson maps protocol endpoints without exposing a stub agent card. /// [Fact] - public void MapA2AHttpJson_WithAgentBuilder_DefaultConfiguration_Succeeds() + public void MapA2AHttpJson_WithAgentBuilder_MapsProtocolEndpoints() { // Arrange WebApplicationBuilder builder = WebApplication.CreateBuilder(); @@ -107,9 +196,19 @@ public void MapA2AHttpJson_WithAgentBuilder_DefaultConfiguration_Succeeds() builder.Services.AddLogging(); using WebApplication app = builder.Build(); - // Act & Assert - Should not throw + // Act var result = app.MapA2AHttpJson(agentBuilder, "/a2a"); + RouteEndpoint[] endpoints = ((IEndpointRouteBuilder)app).DataSources + .SelectMany(source => source.Endpoints) + .OfType() + .ToArray(); + + // Assert Assert.NotNull(result); + Assert.Contains(endpoints, endpoint => endpoint.RoutePattern.RawText == "/a2a/message:send"); + Assert.Contains(endpoints, endpoint => endpoint.RoutePattern.RawText == "/a2a/message:stream"); + Assert.Contains(endpoints, endpoint => endpoint.RoutePattern.RawText == "/a2a/tasks/{id}"); + Assert.DoesNotContain(endpoints, endpoint => endpoint.RoutePattern.RawText == "/a2a/card"); } /// @@ -264,7 +363,7 @@ public void AddA2AServer_WithCustomOptions_Succeeds() public void MapA2AHttpJson_WithAgentName_NullEndpoints_ThrowsArgumentNullException() { // Arrange - AspNetCore.Routing.IEndpointRouteBuilder endpoints = null!; + IEndpointRouteBuilder endpoints = null!; // Act & Assert ArgumentNullException exception = Assert.Throws(() => @@ -280,7 +379,7 @@ public void MapA2AHttpJson_WithAgentName_NullEndpoints_ThrowsArgumentNullExcepti public void MapA2AJsonRpc_WithAgentName_NullEndpoints_ThrowsArgumentNullException() { // Arrange - AspNetCore.Routing.IEndpointRouteBuilder endpoints = null!; + IEndpointRouteBuilder endpoints = null!; // Act & Assert ArgumentNullException exception = Assert.Throws(() => @@ -592,4 +691,59 @@ public void MapA2AJsonRpc_WithoutAddA2AServer_ThrowsInvalidOperationException() Assert.Contains("agent", exception.Message); Assert.Contains("AddA2AServer", exception.Message); } + + private static async Task<(WebApplication App, Mock Handler)> CreateServerOptionsTestHostAsync( + bool supportsStreaming, CancellationToken cancellationToken) + { + var builder = WebApplication.CreateBuilder(); + builder.WebHost.UseTestServer(); + var agent = new Mock(); + agent.SetupGet(a => a.Name).Returns("policy-agent"); + var handler = new Mock(); + handler.Setup(h => h.ExecuteAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns((RequestContext _, AgentEventQueue queue, CancellationToken ct) => queue.EnqueueMessageAsync( + new Message { MessageId = "reply", Role = Role.Agent, Parts = [Part.FromText("Reply")] }, ct).AsTask()); + builder.Services.AddKeyedSingleton(agent.Object.Name, handler.Object); + builder.AddA2AServer(agent.Object, options => options.ServerOptions = new A2AServerOptions + { + SupportsStreaming = supportsStreaming, + SupportedInputModes = ["text/plain"] + }); + var app = builder.Build(); + app.MapA2AHttpJson(agent.Object, "/a2a"); + app.MapA2AJsonRpc(agent.Object, "/a2a"); + app.MapWellKnownAgentCard(new AgentCard + { + Name = "policy-agent", + Description = "Test agent", + Version = "1.0.0", + Capabilities = new() { Streaming = supportsStreaming }, + DefaultInputModes = ["text/plain"], + DefaultOutputModes = ["text/plain"], + Skills = [], + SupportedInterfaces = [] + }); + await app.StartAsync(cancellationToken); + return (app, handler); + } + + private static async Task SendServerOptionsTestRequestAsync( + HttpClient client, bool jsonRpc, bool streaming, Part part, CancellationToken cancellationToken) + { + var request = new SendMessageRequest + { + Message = new Message { MessageId = "request", Role = Role.User, Parts = [part] } + }; + string json = jsonRpc + ? JsonSerializer.Serialize(new JsonRpcRequest + { + Id = "request", + Method = streaming ? "SendStreamingMessage" : "SendMessage", + Params = JsonSerializer.SerializeToElement(request, A2AJsonUtilities.DefaultOptions) + }, A2AJsonUtilities.DefaultOptions) + : JsonSerializer.Serialize(request, A2AJsonUtilities.DefaultOptions); + using var content = new StringContent(json, Encoding.UTF8, "application/json"); + var uri = new Uri(jsonRpc ? "/a2a" : streaming ? "/a2a/message:stream" : "/a2a/message:send", UriKind.Relative); + return await client.PostAsync(uri, content, cancellationToken); + } } diff --git a/dotnet/tests/Microsoft.Agents.AI.Hosting.A2A.UnitTests/A2AServerServiceCollectionExtensionsTests.cs b/dotnet/tests/Microsoft.Agents.AI.Hosting.A2A.UnitTests/A2AServerServiceCollectionExtensionsTests.cs index fb35a49abce..1b16307e9ea 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Hosting.A2A.UnitTests/A2AServerServiceCollectionExtensionsTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Hosting.A2A.UnitTests/A2AServerServiceCollectionExtensionsTests.cs @@ -280,6 +280,88 @@ public async Task AddA2AServer_WithNullConfigureOptions_ResolvesSuccessfullyAsyn Assert.NotNull(server); } + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task AddA2AServer_WithServerOptions_RejectsUnsupportedRequestsAsync(bool registerByName) + { + // Arrange + const string AgentName = "text-only-agent"; + var services = new ServiceCollection(); + var agentMock = CreateAgentMock(AgentName); + void configureOptions(A2AServerRegistrationOptions options) => options.ServerOptions = new A2AServerOptions + { + SupportsStreaming = false, + SupportedInputModes = ["text/plain"] + }; + + if (registerByName) + { + services.AddKeyedSingleton(AgentName, agentMock.Object); + services.AddA2AServer(AgentName, configureOptions); + } + else + { + services.AddA2AServer(agentMock.Object, configureOptions); + } + + await using var provider = services.BuildServiceProvider(); + var server = provider.GetRequiredKeyedService(AgentName); + var imageRequest = CreateTestSendMessageRequest(); + imageRequest.Message.Parts = [Part.FromRaw([1, 2, 3], "image/png")]; + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)); + + // Act + var streamingException = await Assert.ThrowsAsync(async () => + { + await foreach (var _ in server.SendStreamingMessageAsync(CreateTestSendMessageRequest(), cts.Token)) + { + Assert.Fail("A server with streaming disabled must not return stream events."); + } + }); + var inputException = await Assert.ThrowsAsync(() => server.SendMessageAsync(imageRequest, cts.Token)); + + // Assert + Assert.Equal(A2AErrorCode.UnsupportedOperation, streamingException.ErrorCode); + Assert.Equal(A2AErrorCode.ContentTypeNotSupported, inputException.ErrorCode); + agentMock.Protected().Verify("RunCoreStreamingAsync", Times.Never(), + ItExpr.IsAny>(), + ItExpr.IsAny(), + ItExpr.IsAny(), + ItExpr.IsAny()); + } + + [Fact] + public async Task AddA2AServer_WithServerOptions_DoesNotChangeOtherRegistrationsDefaultsAsync() + { + // Arrange + var services = new ServiceCollection(); + services.AddA2AServer(CreateAgentMock("text-only-agent").Object, options => options.ServerOptions = new A2AServerOptions + { + SupportsStreaming = false, + SupportedInputModes = ["text/plain"] + }); + services.AddA2AServer(CreateAgentMock("default-agent").Object); + await using var provider = services.BuildServiceProvider(); + var textOnlyServer = provider.GetRequiredKeyedService("text-only-agent"); + var defaultServer = provider.GetRequiredKeyedService("default-agent"); + var imageRequest = CreateTestSendMessageRequest(); + imageRequest.Message.Parts = [Part.FromRaw([1, 2, 3], "image/png")]; + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)); + + // Act + var textResponse = await textOnlyServer.SendMessageAsync(CreateTestSendMessageRequest(), cts.Token); + var imageResponses = new List(); + await foreach (var response in defaultServer.SendStreamingMessageAsync(imageRequest, cts.Token)) + { + imageResponses.Add(response); + } + + // Assert + Assert.Equal("Test response", Assert.Single(textResponse.Message!.Parts).Text); + Assert.Equal("Test response", Assert.Single(Assert.Single(imageResponses).Message!.Parts).Text); + } + /// /// Verifies that AddA2AServer throws when the agent name is null. /// diff --git a/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.UnitTests/ConfigureAGUIJsonOptionsTests.cs b/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.UnitTests/ConfigureAGUIJsonOptionsTests.cs index 88ada833871..8a6e353f0ba 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.UnitTests/ConfigureAGUIJsonOptionsTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.UnitTests/ConfigureAGUIJsonOptionsTests.cs @@ -32,6 +32,19 @@ public void AddAGUIServer_ConfiguresJsonOptions_ResolvesAgentAbstractionsTypes() Assert.Null(Record.Exception(() => options.GetTypeInfo(typeof(ChatMessage)))); } + [Fact] + public void AddAGUIServer_ConfiguresJsonOptions_OmitsOptionalFieldsWithNoValue() + { + JsonSerializerOptions options = BuildConfiguredSerializerOptions(); + + string json = JsonSerializer.Serialize(new RunStartedEvent { ThreadId = "thread", RunId = "run" }, options); + + // AG-UI receivers declare the optional event fields as optional, not nullable, so writing them + // as explicit nulls fails validation client-side. The configured options must omit them. + Assert.DoesNotContain("null", json); + Assert.Equal("""{"type":"RUN_STARTED","threadId":"thread","runId":"run"}""", json); + } + private static JsonSerializerOptions BuildConfiguredSerializerOptions() { ServiceCollection services = new(); diff --git a/dotnet/tests/Microsoft.Agents.AI.Hosting.OpenAI.UnitTests/OpenAIChatCompletionsConformanceTests.cs b/dotnet/tests/Microsoft.Agents.AI.Hosting.OpenAI.UnitTests/OpenAIChatCompletionsConformanceTests.cs index ad7e6410f83..3f6c9fdc30f 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Hosting.OpenAI.UnitTests/OpenAIChatCompletionsConformanceTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Hosting.OpenAI.UnitTests/OpenAIChatCompletionsConformanceTests.cs @@ -1,12 +1,23 @@ // Copyright (c) Microsoft. All rights reserved. +using System; using System.Collections.Generic; +using System.IO; using System.Linq; using System.Net.Http; +using System.Runtime.CompilerServices; +using System.Text; using System.Text.Json; +using System.Threading; using System.Threading.Tasks; +using Microsoft.Agents.AI; using Microsoft.Agents.AI.Hosting.OpenAI.Tests; +using Microsoft.AspNetCore.Builder; +using Microsoft.AspNetCore.Hosting.Server; +using Microsoft.AspNetCore.TestHost; using Microsoft.Extensions.AI; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Hosting; namespace Microsoft.Agents.AI.Hosting.OpenAI.UnitTests; @@ -230,6 +241,43 @@ public async Task StreamingRequestResponseAsync() Assert.NotEmpty(accumulatedText); } + [Fact] + public async Task StreamingResponseEndsWithDoneSentinelAsync() + { + // The recorded OpenAI trace for this endpoint ends with "data: [DONE]", and + // OpenAI-compatible clients use that frame to detect completion rather than waiting for + // the connection to drop. StreamingRequestResponseAsync above cannot catch a missing + // terminator: it asserts through ParseChatCompletionChunksFromSse, which skips the + // "[DONE]" line because it is not JSON. + + // Arrange + string requestJson = LoadChatCompletionsTraceFile("streaming/request.json"); + HttpClient client = await this.CreateTestServerAsync("done-sentinel-agent", "You are a helpful assistant.", "Hello there."); + + // Act + HttpResponseMessage httpResponse = await this.SendChatCompletionRequestAsync(client, "done-sentinel-agent", requestJson); + string responseSse = await httpResponse.Content.ReadAsStringAsync(); + + // Assert - the terminator is present, is the final frame, and is not duplicated. + // The body must end with the blank line that closes the frame: a client reading frame by + // frame never sees a "data: [DONE]" that is not followed by "\n\n", so asserting on a + // trimmed body would pass even if the final frame were left unterminated. + Assert.Equal("text/event-stream", httpResponse.Content.Headers.ContentType?.MediaType); + Assert.Contains("data: [DONE]", responseSse); + Assert.EndsWith("data: [DONE]\n\n", responseSse, StringComparison.Ordinal); + + var dataLines = responseSse.Split('\n') + .Select(line => line.TrimEnd('\r')) + .Where(line => line.StartsWith("data: ", StringComparison.Ordinal)) + .ToList(); + Assert.Single(dataLines, line => line == "data: [DONE]"); + + // Assert - the terminator follows the payload chunks rather than replacing them, so a + // client that stops reading at [DONE] still receives the whole completion. + Assert.True(dataLines.Count > 1, "the stream should carry chat completion chunks before the terminator"); + Assert.All(dataLines[..^1], line => Assert.StartsWith("data: {", line, StringComparison.Ordinal)); + } + [Fact] public async Task FunctionCallingRequestResponseAsync() { @@ -343,7 +391,7 @@ public async Task SystemMessageRequestResponseAsync() AssertJsonPropertyEquals(systemMessage, "role", "system"); AssertJsonPropertyExists(systemMessage, "content"); string systemContent = systemMessage.GetProperty("content").GetString()!; - Assert.Contains("pirate", systemContent, System.StringComparison.OrdinalIgnoreCase); + Assert.Contains("pirate", systemContent, StringComparison.OrdinalIgnoreCase); var userMessage = messages[1]; AssertJsonPropertyEquals(userMessage, "role", "user"); @@ -598,7 +646,7 @@ private static List ParseChatCompletionChunksFromSse(string sseCont { var line = lines[i].TrimEnd('\r'); - if (line.StartsWith("data: ", System.StringComparison.Ordinal)) + if (line.StartsWith("data: ", StringComparison.Ordinal)) { var jsonData = line.Substring("data: ".Length); @@ -622,4 +670,137 @@ private static List ParseChatCompletionChunksFromSse(string sseCont return chunks; } + + [Fact] + public async Task StreamingResponseOmitsDoneSentinelWhenAgentStreamFailsAsync() + { + // The sentinel must only ever follow a stream that ran to completion; a truncated response + // must never be marked complete. Asserting that from the client does not work: when the + // agent throws, the server aborts and the client receives no body at all, so a client-side + // check passes even against a try/finally refactor that writes the terminator + // unconditionally. This captures what the server actually wrote to the response body, which + // does distinguish the two. + + // Arrange - a host whose response body is tee'd into a buffer we can inspect afterwards. + // The host is built here rather than through ConformanceTestBase.CreateTestServerAsync + // because this test needs response-body middleware and a throwing chat client, and neither + // belongs in the shared harness for a single caller. If the base class's wiring changes, + // this setup does not follow it automatically -- keep them in step deliberately. + string requestJson = LoadChatCompletionsTraceFile("streaming/request.json"); + using var recorded = new MemoryStream(); + using var failingChatClient = new FailingStreamChatClient(updatesBeforeFailure: 2); + + WebApplicationBuilder builder = WebApplication.CreateBuilder(); + builder.WebHost.UseTestServer(); + builder.Services.AddKeyedSingleton("chat-client", failingChatClient); + builder.AddAIAgent("failing-agent", "You are a helpful assistant.", chatClientServiceKey: "chat-client"); + builder.AddOpenAIChatCompletions(); + + await using WebApplication app = builder.Build(); + app.Use(async (context, next) => + { + Stream original = context.Response.Body; + context.Response.Body = new TeeStream(original, recorded); + try + { + await next(context); + } + finally + { + context.Response.Body = original; + } + }); + AIAgent agent = app.Services.GetRequiredKeyedService("failing-agent"); + app.MapOpenAIChatCompletions(agent, path: null, PermissiveMapOptions.ChatCompletions()); + await app.StartAsync(); + + TestServer testServer = (TestServer)app.Services.GetRequiredService(); + using HttpClient client = testServer.CreateClient(); + + // Act - the agent yields two updates and then throws partway through the body + try + { + using HttpResponseMessage response = await this.SendChatCompletionRequestAsync(client, "failing-agent", requestJson); + _ = await response.Content.ReadAsStringAsync(); + } + catch (Exception ex) when (ex is HttpRequestException or IOException or InvalidOperationException) + { + // Expected: the server aborts the response rather than completing it. + } + + await app.StopAsync(); + + // Assert - the server wrote payload frames but never the terminator + string written = Encoding.UTF8.GetString(recorded.ToArray()); + Assert.Contains("chat.completion.chunk", written); + Assert.DoesNotContain("[DONE]", written); + } + + /// A chat client whose streaming response yields a few updates and then throws. + private sealed class FailingStreamChatClient(int updatesBeforeFailure) : IChatClient + { + public Task GetResponseAsync(IEnumerable messages, ChatOptions? options = null, CancellationToken cancellationToken = default) + => throw new InvalidOperationException("mock streaming failure"); + + public async IAsyncEnumerable GetStreamingResponseAsync( + IEnumerable messages, + ChatOptions? options = null, + [EnumeratorCancellation] CancellationToken cancellationToken = default) + { + for (int i = 0; i < updatesBeforeFailure; i++) + { + await Task.Delay(1, cancellationToken); + yield return new ChatResponseUpdate { Contents = [new TextContent($"chunk{i} ")], Role = ChatRole.Assistant }; + } + + throw new InvalidOperationException("mock streaming failure"); + } + + public object? GetService(Type serviceType, object? serviceKey = null) => serviceType.IsInstanceOfType(this) ? this : null; + + public void Dispose() + { + } + } + + /// + /// Forwards writes to the real response body while copying them into a buffer. The copy happens + /// first so that bytes the server attempted to write are recorded even if the real write fails + /// because the response is already being torn down. + /// + private sealed class TeeStream(Stream inner, Stream capture) : Stream + { + public override bool CanRead => false; + public override bool CanSeek => false; + public override bool CanWrite => true; + public override long Length => throw new NotSupportedException(); + public override long Position { get => throw new NotSupportedException(); set => throw new NotSupportedException(); } + + public override void Write(byte[] buffer, int offset, int count) + { + capture.Write(buffer, offset, count); + inner.Write(buffer, offset, count); + } + + public override void Write(ReadOnlySpan buffer) + { + capture.Write(buffer); + inner.Write(buffer); + } + + public override async ValueTask WriteAsync(ReadOnlyMemory buffer, CancellationToken cancellationToken = default) + { + await capture.WriteAsync(buffer, cancellationToken).ConfigureAwait(false); + await inner.WriteAsync(buffer, cancellationToken).ConfigureAwait(false); + } + + public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken) + => this.WriteAsync(buffer.AsMemory(offset, count), cancellationToken).AsTask(); + + public override void Flush() => inner.Flush(); + public override Task FlushAsync(CancellationToken cancellationToken) => inner.FlushAsync(cancellationToken); + public override int Read(byte[] buffer, int offset, int count) => throw new NotSupportedException(); + public override long Seek(long offset, SeekOrigin origin) => throw new NotSupportedException(); + public override void SetLength(long value) => throw new NotSupportedException(); + } } diff --git a/dotnet/tests/Microsoft.Agents.AI.Mem0.UnitTests/Mem0ProviderTests.cs b/dotnet/tests/Microsoft.Agents.AI.Mem0.UnitTests/Mem0ProviderTests.cs index a959faa515c..c54cba8eb4e 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Mem0.UnitTests/Mem0ProviderTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Mem0.UnitTests/Mem0ProviderTests.cs @@ -405,6 +405,80 @@ public async Task InvokingAsync_ShouldNotThrow_WhenSearchFailsAsync() Times.Once); } + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task InvokingAsync_WhenRequestIsCanceled_PropagatesOnlyCallerCancellationAsync(bool cancelCaller) + { + // Arrange + using var cts = new CancellationTokenSource(); + this._handler.OnSend = cancellationToken => + { + if (cancelCaller) + { + cts.Cancel(); + cancellationToken.ThrowIfCancellationRequested(); + } + + throw new TaskCanceledException("Request timed out."); + }; + var sut = new Mem0Provider(this._httpClient, _ => new Mem0Provider.State(new Mem0ProviderScope { ThreadId = "tid" }), loggerFactory: this._loggerFactoryMock.Object); + var message = new ChatMessage(ChatRole.User, "What is my name?"); + var context = new AIContextProvider.InvokingContext(s_mockAgent, new TestAgentSession(), new AIContext { Messages = [message] }); + + // Act & Assert + if (cancelCaller) + { + await Assert.ThrowsAnyAsync(() => sut.InvokingAsync(context, cts.Token).AsTask()); + } + else + { + var result = await sut.InvokingAsync(context, cts.Token); + Assert.Same(message, Assert.Single(result.Messages!)); + } + + Assert.Single(this._handler.Requests); + this._loggerMock.Verify( + logger => logger.Log(LogLevel.Error, It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny>()), + cancelCaller ? Times.Never() : Times.Once()); + } + + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task InvokedAsync_WhenRequestIsCanceled_PropagatesOnlyCallerCancellationAsync(bool cancelCaller) + { + // Arrange + using var cts = new CancellationTokenSource(); + this._handler.OnSend = cancellationToken => + { + if (cancelCaller) + { + cts.Cancel(); + cancellationToken.ThrowIfCancellationRequested(); + } + + throw new TaskCanceledException("Request timed out."); + }; + var sut = new Mem0Provider(this._httpClient, _ => new Mem0Provider.State(new Mem0ProviderScope { ThreadId = "tid" }), loggerFactory: this._loggerFactoryMock.Object); + var context = new AIContextProvider.InvokedContext(s_mockAgent, new TestAgentSession(), [new ChatMessage(ChatRole.User, "Remember my name.")], []); + + // Act & Assert + if (cancelCaller) + { + await Assert.ThrowsAnyAsync(() => sut.InvokedAsync(context, cts.Token).AsTask()); + } + else + { + await sut.InvokedAsync(context, cts.Token); + } + + Assert.Single(this._handler.Requests); + this._loggerMock.Verify( + logger => logger.Log(LogLevel.Error, It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny>()), + cancelCaller ? Times.Never() : Times.Once()); + } + [Fact] public async Task StateInitializer_IsCalledOnceAndStoredInStateBagAsync() { @@ -655,6 +729,7 @@ private sealed class RecordingHandler : HttpMessageHandler { private readonly Queue _responses = new(); public List<(HttpRequestMessage RequestMessage, string RequestBody)> Requests { get; } = []; + public Action? OnSend { get; set; } protected override async Task SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) { @@ -664,6 +739,7 @@ protected override async Task SendAsync(HttpRequestMessage var requestBody = await (request.Content?.ReadAsStringAsync() ?? Task.FromResult(string.Empty)); #endif this.Requests.Add((request, requestBody)); + this.OnSend?.Invoke(cancellationToken); if (this._responses.Count > 0) { return this._responses.Dequeue(); diff --git a/dotnet/tests/Microsoft.Agents.AI.Purview.UnitTests/ScopedContentProcessorTests.cs b/dotnet/tests/Microsoft.Agents.AI.Purview.UnitTests/ScopedContentProcessorTests.cs index 7afad015ca1..c3df179d740 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Purview.UnitTests/ScopedContentProcessorTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Purview.UnitTests/ScopedContentProcessorTests.cs @@ -1214,6 +1214,58 @@ await this._processor.ProcessMessagesAsync( Assert.NotEqual(binaryEntry.Identifier, functionCallEntry.Identifier); } + /// + /// Verifies annotations, error details and data names are submitted alongside the main payload. + /// + [Fact] + public async Task ProcessMessagesAsync_WithAnnotationsErrorDetailsAndDataName_SubmitsThemForEvaluationAsync() + { + // Arrange + List messages = + [ + new(ChatRole.Assistant, + [ + new TextContent("see sources") { Annotations = [new CitationAnnotation { Title = "cited-title-111", Url = new Uri("https://example.com/cited") }] }, + new ErrorContent("failed") { Details = "error-details-222" }, + new DataContent(new byte[] { 1, 2, 3 }, "application/octet-stream") { Name = "file-name-333.bin" }, + new DataContent(ReadOnlyMemory.Empty, "application/octet-stream") { Name = "empty-file-name-444.bin" } + ]) + ]; + PurviewSettings settings = CreateValidPurviewSettings(); + TokenInfo tokenInfo = new() { TenantId = "tenant-123", UserId = "user-123", ClientId = "client-123" }; + + this._mockPurviewClient.Setup(x => x.GetUserInfoFromTokenAsync(It.IsAny(), null)) + .ReturnsAsync(tokenInfo); + this._mockCacheProvider.Setup(x => x.GetAsync( + It.IsAny(), It.IsAny())) + .ReturnsAsync(CreateApplicableProtectionScopesResponse()); + + List capturedRequests = []; + this._mockPurviewClient.Setup(x => x.ProcessContentAsync( + It.IsAny(), It.IsAny())) + .Callback((request, _) => capturedRequests.Add(request)) + .ReturnsAsync(new ProcessContentResponse()); + + // Act + await this._processor.ProcessMessagesAsync( + messages, "session-123", Activity.UploadText, settings, "user-123", CancellationToken.None); + + // Assert + List texts = []; + foreach (ProcessContentRequest request in capturedRequests) + { + if (request.ContentToProcess.ContentEntries[0].Content is PurviewTextContent text) + { + texts.Add(text.Data); + } + } + + Assert.Contains(texts, t => t.Contains("cited-title-111", StringComparison.Ordinal)); + Assert.Contains("error-details-222", texts); + Assert.Contains("file-name-333.bin", texts); + Assert.Contains("empty-file-name-444.bin", texts); + } + [Fact] public async Task ProcessMessagesAsync_WithEmptyTextAndData_SkipsEmptyContentAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Tools.Shell.UnitTests/DockerShellExecutorTests.cs b/dotnet/tests/Microsoft.Agents.AI.Tools.Shell.UnitTests/DockerShellExecutorTests.cs index db845f1af24..9f4a82896c2 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Tools.Shell.UnitTests/DockerShellExecutorTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Tools.Shell.UnitTests/DockerShellExecutorTests.cs @@ -124,6 +124,51 @@ public void BuildRunArgv_EnvAndExtraArgs_AreAppended() Assert.Contains("owner=test", list); } + [Fact] + public void Ctor_RejectsNullUnsafeExtraRunArg() + { + // Arrange + var options = new DockerShellExecutorOptions { UnsafeExtraRunArgs = [null!] }; + + // Act + var exception = Assert.Throws(() => new DockerShellExecutor(options)); + + // Assert + Assert.Contains("UnsafeExtraRunArgs", exception.Message, StringComparison.Ordinal); + Assert.Contains("null token", exception.Message, StringComparison.Ordinal); + } + + [Fact] + public async Task Ctor_SnapshotsCallerOwnedUnsafeExtraRunArgListAsync() + { + // Arrange + var unsafeArgs = new List { "--network", "host" }; + await using var unsafeExecutor = new DockerShellExecutor(new() { UnsafeExtraRunArgs = unsafeArgs }); + + // Act + unsafeArgs.Add("--privileged"); + + // Assert + Assert.DoesNotContain("--privileged", unsafeExecutor.BuildRunArgvPersistent()); + Assert.DoesNotContain("--privileged", unsafeExecutor.BuildRunArgvStateless("unsafe")); + } + + [Fact] + public async Task Ctor_PassesUnsafeExtraRunArgsVerbatimInBothModesAsync() + { + // Arrange + string[] unsafeArgs = ["--network", "host", "--entrypoint", "/bin/custom"]; + await using var executor = new DockerShellExecutor(new() { UnsafeExtraRunArgs = unsafeArgs }); + + // Act + var persistent = executor.BuildRunArgvPersistent(); + var stateless = executor.BuildRunArgvStateless("stateless"); + + // Assert + AssertOrderedSubsequence(persistent, unsafeArgs); + AssertOrderedSubsequence(stateless, unsafeArgs); + } + private static readonly string[] s_expectedInteractive = new[] { "docker", "exec", "-i", "af-shell-x", "bash", "--noprofile", "--norc" }; [Fact] @@ -169,6 +214,9 @@ public async Task AsAIFunction_DefaultRequireApproval_IsApprovalGatedAsync() var fn = t.AsAIFunction(); Assert.IsType(fn); Assert.Equal("run_shell", fn.Name); + Assert.NotNull(fn.Description); + Assert.Contains("configured Docker container", fn.Description, StringComparison.Ordinal); + Assert.DoesNotContain("has no network", fn.Description, StringComparison.Ordinal); } [Fact] @@ -211,4 +259,15 @@ public async Task RunAsync_RejectedCommand_ThrowsShellCommandRejectedAsync() await Assert.ThrowsAsync( () => t.RunAsync("rm -rf /")); } + + private static void AssertOrderedSubsequence(IReadOnlyList actual, IReadOnlyList expected) + { + var start = 0; + foreach (var value in expected) + { + var index = actual.ToList().FindIndex(start, item => string.Equals(item, value, StringComparison.Ordinal)); + Assert.True(index >= 0, $"Expected '{value}' after index {start - 1}."); + start = index + 1; + } + } } diff --git a/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ApprovalNotRequiredFunctionBypassingChatClientTests.cs b/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ApprovalNotRequiredFunctionBypassingChatClientTests.cs index 37c96f9a433..ed37bf6dc44 100644 --- a/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ApprovalNotRequiredFunctionBypassingChatClientTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ApprovalNotRequiredFunctionBypassingChatClientTests.cs @@ -202,13 +202,13 @@ public async Task GetResponseAsync_NextRequest_InjectsStoredAutoApprovalsAsync() Assert.NotNull(capturedMessages); var messagesList = capturedMessages!.ToList(); - // Original user message + user message with approved responses. + // Approved responses precede the original user message. Assert.Equal(2, messagesList.Count); Assert.Equal(ChatRole.User, messagesList[0].Role); // User message with the auto-approved ToolApprovalResponseContent Assert.Equal(ChatRole.User, messagesList[1].Role); - var userContent = messagesList[1].Contents.OfType().ToList(); + var userContent = messagesList[0].Contents.OfType().ToList(); Assert.Single(userContent); Assert.Equal("req1", userContent[0].RequestId); Assert.True(userContent[0].Approved); @@ -385,7 +385,7 @@ public async Task GetResponseAsync_StoredRequestToolSetChanged_RejectsInsteadOfA // Assert — the call is answered with a rejection, so the gated tool is not executed. Assert.NotNull(capturedMessages); - var injected = Assert.Single(capturedMessages!.Last().Contents.OfType()); + var injected = Assert.Single(capturedMessages!.First().Contents.OfType()); Assert.Equal("req1", injected.RequestId); Assert.False(injected.Approved); @@ -421,7 +421,7 @@ public async Task GetResponseAsync_StoredRequestToolNoLongerAvailable_RejectsIns // Assert Assert.NotNull(capturedMessages); - var injected = Assert.Single(capturedMessages!.Last().Contents.OfType()); + var injected = Assert.Single(capturedMessages!.First().Contents.OfType()); Assert.Equal("req1", injected.RequestId); Assert.False(injected.Approved); } @@ -461,7 +461,7 @@ public async Task GetResponseAsync_StoredRequestsPartiallyChanged_RejectsOnlyCha // Assert — the batch is answered in full, but only the unchanged call is approved. Assert.NotNull(capturedMessages); - var injected = capturedMessages!.Last().Contents.OfType().ToList(); + var injected = capturedMessages!.First().Contents.OfType().ToList(); Assert.Equal(2, injected.Count); Assert.True(Assert.Single(injected, r => r.RequestId == "req1").Approved); Assert.False(Assert.Single(injected, r => r.RequestId == "req2").Approved); @@ -496,7 +496,7 @@ public async Task GetResponseAsync_StoredRequestToolStillApprovalFree_InjectsAsA Assert.NotNull(capturedMessages); var messagesList = capturedMessages!.ToList(); Assert.Equal(2, messagesList.Count); - var userContent = messagesList[1].Contents.OfType().ToList(); + var userContent = messagesList[0].Contents.OfType().ToList(); Assert.Single(userContent); Assert.Equal("req1", userContent[0].RequestId); Assert.True(userContent[0].Approved); @@ -563,7 +563,7 @@ public async Task GetStreamingResponseAsync_StoredRequestToolSetChanged_RejectsI // Assert — the call is answered with a rejection, so the gated tool is not executed. Assert.NotNull(capturedMessages); - var injected = Assert.Single(capturedMessages!.Last().Contents.OfType()); + var injected = Assert.Single(capturedMessages!.First().Contents.OfType()); Assert.Equal("req1", injected.RequestId); Assert.False(injected.Approved); diff --git a/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ApprovalResponseBindingChatClientTests.cs b/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ApprovalResponseBindingChatClientTests.cs index 05afede2b00..e30cfc0d58e 100644 --- a/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ApprovalResponseBindingChatClientTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ApprovalResponseBindingChatClientTests.cs @@ -14,6 +14,244 @@ public class ApprovalResponseBindingChatClientTests { private const string RequestId = "ficc_call1"; + [Fact] + public void PrepareApprovalMessages_TwoCompletedCycles_PreservesOriginalOrder() + { + // Arrange + var requestA = new ToolApprovalRequestContent("request-A", new FunctionCallContent("call-A", "toolA")); + var requestB = new ToolApprovalRequestContent("request-B", new FunctionCallContent("call-B", "toolB")); + List messages = + [ + new(ChatRole.Assistant, [requestA]), + new(ChatRole.User, [requestA.CreateResponse(approved: true)]), + new(ChatRole.Assistant, [new FunctionCallContent("call-A", "toolA")]), + new(ChatRole.Tool, [new FunctionResultContent("call-A", "Result A")]), + new(ChatRole.Assistant, [requestB]), + new(ChatRole.User, [requestB.CreateResponse(approved: false)]), + new(ChatRole.Assistant, [new FunctionCallContent("call-B", "toolB")]), + new(ChatRole.Tool, [new FunctionResultContent("call-B", "Rejected")]), + ]; + + // Act + var result = ToolApprovalHelpers.PrepareApprovalMessages(messages, null); + + // Assert + Assert.Same(messages, result); + } + + [Fact] + public async Task GetResponseAsync_TwoCompletedCycles_PreservesServiceCallResultOrderAsync() + { + // Arrange + var requestA = new ToolApprovalRequestContent("request-A", new FunctionCallContent("call-A", "toolA")); + var requestB = new ToolApprovalRequestContent("request-B", new FunctionCallContent("call-B", "toolB")); + var callA = new FunctionCallContent("call-A", "toolA") { InformationalOnly = true }; + var resultA = new FunctionResultContent("call-A", "Result A"); + var callB = new FunctionCallContent("call-B", "toolB") { InformationalOnly = true }; + var resultB = new FunctionResultContent("call-B", "Result B"); + var capture = new Capture(); + var decorator = new ApprovalResponseBindingChatClient(new FunctionInvokingChatClient(CreateCapturingChatClient(capture))); + List messages = + [ + new(ChatRole.Assistant, [requestA]), + new(ChatRole.User, [requestA.CreateResponse(approved: true)]), + new(ChatRole.Assistant, [callA]), + new(ChatRole.Tool, [resultA]), + new(ChatRole.Assistant, [requestB]), + new(ChatRole.User, [requestB.CreateResponse(approved: true)]), + new(ChatRole.Assistant, [callB]), + new(ChatRole.Tool, [resultB]), + new(ChatRole.User, "New question"), + ]; + + // Act + await RunAsync(decorator, new ChatClientAgentSession(), messages); + + // Assert + var sent = capture.Messages!; + Assert.Equal(5, sent.Count); + Assert.Same(callA, Assert.Single(sent[0].Contents)); + Assert.Same(resultA, Assert.Single(sent[1].Contents)); + Assert.Same(callB, Assert.Single(sent[2].Contents)); + Assert.Same(resultB, Assert.Single(sent[3].Contents)); + Assert.Equal("New question", sent[4].Text); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public void PrepareApprovalMessages_CompletedCycleWithPendingDecision_PreservesCompletedMessages(bool additionalAnswer) + { + // Arrange + var completed = new ToolApprovalRequestContent("completed", new FunctionCallContent("old-call", "toolA")); + var pending = new ToolApprovalRequestContent("pending", new FunctionCallContent("new-call", "toolB")); + var answer = pending.CreateResponse(approved: false); + List messages = + [ + new(ChatRole.Assistant, [completed]), + new(ChatRole.User, [completed.CreateResponse(approved: true), new TextContent("Old text")]), + new(ChatRole.Assistant, [new FunctionCallContent("old-call", "toolA")]), + new(ChatRole.Tool, [new FunctionResultContent("old-call", "Old result")]), + new(ChatRole.Assistant, [pending]), + new(ChatRole.User, "New question"), + ]; + if (!additionalAnswer) + { + messages.Add(new(ChatRole.User, [answer])); + } + + // Act + var result = ToolApprovalHelpers.PrepareApprovalMessages(messages, additionalAnswer ? [answer] : null); + + // Assert + Assert.Equal(7, result.Count); + for (int i = 0; i < 5; i++) + { + Assert.Same(messages[i], result[i]); + } + Assert.Same(answer, Assert.Single(result[5].Contents)); + Assert.Same(messages[5], result[6]); + Assert.Equal(2, messages[1].Contents.Count); + } + + [Fact] + public void PrepareApprovalMessages_LaterCompletedRequest_DoesNotMovePendingInsertionPoint() + { + // Arrange + var pending = new ToolApprovalRequestContent("pending", new FunctionCallContent("pending-call", "toolA")); + var completed = new ToolApprovalRequestContent("completed", new FunctionCallContent("completed-call", "toolB")); + var answer = pending.CreateResponse(approved: false); + List messages = + [ + new(ChatRole.Assistant, [pending]), + new(ChatRole.User, "New question"), + new(ChatRole.Assistant, [completed]), + new(ChatRole.User, [completed.CreateResponse(approved: true)]), + new(ChatRole.Assistant, [new FunctionCallContent("completed-call", "toolB")]), + new(ChatRole.Tool, [new FunctionResultContent("completed-call", "Completed")]), + ]; + + // Act + var result = ToolApprovalHelpers.PrepareApprovalMessages(messages, [answer]); + + // Assert + Assert.Same(messages[0], result[0]); + Assert.Same(answer, Assert.Single(result[1].Contents)); + for (int i = 1; i < messages.Count; i++) + { + Assert.Same(messages[i], result[i + 1]); + } + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public void PrepareApprovalMessages_NoAnswersToMove_ReturnsOriginalList(bool emptyAdditionalResponses) + { + // Arrange + var request = new ToolApprovalRequestContent(RequestId, new FunctionCallContent("call1", "toolA")); + var historicalAnswer = new ToolApprovalResponseContent( + "old-request", false, new FunctionCallContent("old-call", "toolA") { InformationalOnly = true }); + List messages = + [ + new(ChatRole.Assistant, [request]), + new(ChatRole.User, [historicalAnswer, new TextContent("New question")]), + ]; + + // Act + var result = ToolApprovalHelpers.PrepareApprovalMessages(messages, emptyAdditionalResponses ? [] : null); + + // Assert + Assert.Same(messages, result); + Assert.Equal(2, messages[1].Contents.Count); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public void PrepareApprovalMessages_LateMixedAnswer_PreservesPrefixAndOriginalContents(bool useSequence) + { + // Arrange + var request = new ToolApprovalRequestContent(RequestId, new FunctionCallContent("call1", "toolA")); + var answer = request.CreateResponse(approved: true); + var additionalAnswer = new ToolApprovalRequestContent("request2", new FunctionCallContent("call2", "toolB")).CreateResponse(approved: false); + List messages = + [ + new(ChatRole.User, "Original question"), + new(ChatRole.Assistant, [request]), + new(ChatRole.User, "New question"), + new(ChatRole.User, [new TextContent("Before"), answer, new TextContent("After")]) { MessageId = "mixed" }, + ]; + + // Act + var result = ToolApprovalHelpers.PrepareApprovalMessages( + useSequence ? messages.Select(m => m) : messages, [additionalAnswer]); + + // Assert + Assert.NotSame(messages, result); + Assert.Equal(6, result.Count); + Assert.Same(messages[0], result[0]); + Assert.Same(messages[1], result[1]); + Assert.Same(answer, Assert.Single(result[2].Contents)); + Assert.Equal("mixed", result[2].MessageId); + Assert.Same(additionalAnswer, Assert.Single(result[3].Contents)); + Assert.Same(messages[2], result[4]); + Assert.Equal(2, result[5].Contents.Count); + Assert.Equal("Before", Assert.IsType(result[5].Contents[0]).Text); + Assert.Equal("After", Assert.IsType(result[5].Contents[1]).Text); + Assert.Equal("mixed", result[5].MessageId); + Assert.Equal(3, messages[3].Contents.Count); + Assert.Same(answer, messages[3].Contents[1]); + } + + [Fact] + public void PrepareApprovalMessages_OnlyAdditionalAnswers_DoesNotModifyOriginalList() + { + // Arrange + var request = new ToolApprovalRequestContent(RequestId, new FunctionCallContent("call1", "toolA")); + var answer = request.CreateResponse(approved: false); + List messages = [new(ChatRole.Assistant, [request]), new(ChatRole.User, "New question")]; + + // Act + var result = ToolApprovalHelpers.PrepareApprovalMessages(messages, [answer]); + + // Assert + Assert.NotSame(messages, result); + Assert.Equal(3, result.Count); + Assert.Same(messages[0], result[0]); + Assert.Same(answer, Assert.Single(result[1].Contents)); + Assert.Same(messages[1], result[2]); + Assert.Equal(2, messages.Count); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public void PrepareApprovalMessages_Sequence_IsEnumeratedOnce(bool hasAnswer) + { + // Arrange + var request = new ToolApprovalRequestContent(RequestId, new FunctionCallContent("call1", "toolA")); + ChatMessage question = new(ChatRole.User, "New question"); + int enumerationCount = 0; + IEnumerable GetMessages() + { + enumerationCount++; + yield return question; + if (hasAnswer) + { + yield return new(ChatRole.User, [request.CreateResponse(approved: true)]); + } + } + + // Act + var result = ToolApprovalHelpers.PrepareApprovalMessages(GetMessages(), null); + + // Assert + Assert.Equal(1, enumerationCount); + Assert.Same(question, result[hasAnswer ? 1 : 0]); + Assert.Equal(hasAnswer ? 2 : 1, result.Count); + } + [Fact] public async Task GetResponseAsync_NoApprovalContent_PassesThroughUnchangedAsync() { @@ -97,8 +335,10 @@ public async Task GetResponseAsync_MatchingResponse_RebindsToolCallToRecordedReq Assert.Equal(1, call.Arguments!["amount"]); } - [Fact] - public async Task GetResponseAsync_EquivalentResponse_KeepsOriginalWithoutRebuildAsync() + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task GetResponseAsync_EquivalentResponse_CopiesRecordedCallAsync(bool informationalOnly) { // Arrange — turn 1 records a request; turn 2 approves it with a matching (equivalent) tool call. var session = new ChatClientAgentSession(); @@ -108,7 +348,14 @@ public async Task GetResponseAsync_EquivalentResponse_KeepsOriginalWithoutRebuil var matching = new ToolApprovalResponseContent( RequestId, approved: true, - new FunctionCallContent("call1", "toolA", new Dictionary { ["amount"] = 1 })); + new FunctionCallContent("call1", "toolA", new Dictionary { ["amount"] = 1 }) + { + InformationalOnly = informationalOnly + }) + { + Reason = "Approved by the host.", + AdditionalProperties = new() { ["decision"] = "original" } + }; var capture = new Capture(); var inner = CreateCapturingChatClient(capture); @@ -117,9 +364,19 @@ public async Task GetResponseAsync_EquivalentResponse_KeepsOriginalWithoutRebuil // Act await RunAsync(decorator, session, [new ChatMessage(ChatRole.User, [matching])]); - // Assert — the already-matching response is forwarded unchanged (same instance, no rebuild). + // Assert — equivalent responses are copied too, so invocation cannot mutate the caller's call. var forwarded = capture.Messages!.SelectMany(m => m.Contents).OfType().Single(); - Assert.Same(matching, forwarded); + Assert.NotSame(matching, forwarded); + Assert.NotSame(matching.ToolCall, forwarded.ToolCall); + var call = Assert.IsType(forwarded.ToolCall); + Assert.Equal("toolA", call.Name); + Assert.Equal(1, call.Arguments!["amount"]); + Assert.True(forwarded.Approved); + Assert.False(call.InformationalOnly); + Assert.Equal(informationalOnly, Assert.IsType(matching.ToolCall).InformationalOnly); + Assert.Equal(matching.Reason, forwarded.Reason); + Assert.Equal("original", forwarded.AdditionalProperties!["decision"]); + Assert.NotSame(matching.AdditionalProperties, forwarded.AdditionalProperties); } [Fact] @@ -227,7 +484,7 @@ public async Task GetResponseAsync_ApprovalRequestInHistory_IsPreservedAsync() // Act await RunAsync(decorator, session, [new ChatMessage(ChatRole.Assistant, [request])]); - // Assert — approval requests are the pairing authority and are never stripped. + // Assert — requests remain model context but do not grant permission by themselves. Assert.Contains(capture.Messages!.SelectMany(m => m.Contents), c => c is ToolApprovalRequestContent); } @@ -397,7 +654,8 @@ await RecordRequestsAsync(session, [ new ToolApprovalRequestContent("req2", secondCall)]); var response = new ToolApprovalResponseContent(RequestId, approved: true, firstCall); - var decorator = new ApprovalResponseBindingChatClient(CreateCapturingChatClient(new Capture())); + var capture = new Capture(); + var decorator = new ApprovalResponseBindingChatClient(CreateCapturingChatClient(capture)); // Act await RunAsync(decorator, session, [new ChatMessage(ChatRole.User, [response])]); @@ -405,6 +663,192 @@ await RecordRequestsAsync(session, [ // Assert — neither record survives the turn. Assert.False(HasPendingRequest(session, RequestId)); Assert.False(HasPendingRequest(session, "req2")); + var responses = capture.Messages!.SelectMany(m => m.Contents).OfType().ToList(); + Assert.Equal(2, responses.Count); + Assert.NotSame(response, responses[0]); + Assert.Equal(RequestId, responses[0].RequestId); + Assert.True(responses[0].Approved); + Assert.Equal("req2", responses[1].RequestId); + Assert.False(responses[1].Approved); + Assert.Equal("call2", responses[1].ToolCall.CallId); + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task GetResponseAsync_UnansweredRequests_AreRejectedWithoutChangingInputAsync(bool streaming, bool emptyInput) + { + // Arrange + var session = new ChatClientAgentSession(); + await RecordRequestsAsync(session, + [ + new ToolApprovalRequestContent(RequestId, new FunctionCallContent("call1", "toolA")), + new ToolApprovalRequestContent("req2", new FunctionCallContent("call2", "toolB")) + ]); + var capture = new Capture(); + var inner = streaming + ? CreateMockStreamingChatClient((messages, _, _) => + { + capture.Messages = messages.ToList(); + return UpdatesAsync(new ChatResponseUpdate(ChatRole.Assistant, "Done.")); + }) + : CreateCapturingChatClient(capture); + var decorator = new ApprovalResponseBindingChatClient(inner); + var message = new ChatMessage(ChatRole.User, "New question."); + List input = emptyInput ? [] : [message]; + + // Act + if (streaming) + { + await RunStreamingAsync(decorator, session, input); + } + else + { + await RunAsync(decorator, session, input); + } + + // Assert + Assert.Equal(emptyInput ? 0 : 1, input.Count); + Assert.IsType(Assert.Single(message.Contents)); + if (!emptyInput) + { + Assert.Same(message, capture.Messages![1]); + } + + var responses = capture.Messages!.SelectMany(m => m.Contents).OfType().ToList(); + Assert.Equal(2, responses.Count); + Assert.Contains(responses, r => r.RequestId == RequestId); + Assert.Contains(responses, r => r.RequestId == "req2"); + Assert.All(responses, r => + { + Assert.False(r.Approved); + Assert.Equal("No approval response was provided for this approval required tool call.", r.Reason); + }); + Assert.False(HasPendingRequest(session, RequestId)); + Assert.False(HasPendingRequest(session, "req2")); + } + + [Fact] + public async Task GetResponseAsync_UnansweredRequestWithResult_IsNotRejectedAgainAsync() + { + // Arrange + var session = new ChatClientAgentSession(); + var call = new FunctionCallContent("call1", "toolA"); + await RecordRequestAsync(session, new ToolApprovalRequestContent(RequestId, call)); + var capture = new Capture(); + var decorator = new ApprovalResponseBindingChatClient(CreateCapturingChatClient(capture)); + var result = new FunctionResultContent("call1", "Already completed."); + + // Act + await RunAsync(decorator, session, [new ChatMessage(ChatRole.Tool, [result])]); + + // Assert + Assert.Same(result, Assert.Single(Assert.Single(capture.Messages!).Contents)); + Assert.False(HasPendingRequest(session, RequestId)); + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task GetResponseAsync_RequestWithResultButNoAnswer_IsNotRepairedAsync(bool hasPendingRequest, bool streaming) + { + // Arrange + var request = new ToolApprovalRequestContent(RequestId, new FunctionCallContent("call1", "toolA")); + var session = new ChatClientAgentSession(); + if (hasPendingRequest) + { + await RecordRequestAsync(session, request); + } + + var capture = new Capture(); + using var inner = new FunctionInvokingChatClient(CreateCapturingChatClient(capture)); + var decorator = new ApprovalResponseBindingChatClient(inner); + var result = new FunctionResultContent("call1", "Already completed."); + + // Act + List input = + [ + new ChatMessage(ChatRole.Assistant, [request]), + new ChatMessage(ChatRole.Tool, [result]), + new ChatMessage(ChatRole.User, "Continue.") + ]; + + var exception = await Assert.ThrowsAsync(() => streaming + ? RunStreamingAsync(decorator, session, input) + : RunAsync(decorator, session, input)); + + // Assert + Assert.False(Assert.IsType(request.ToolCall).InformationalOnly); + Assert.Contains("no matching ToolApprovalResponseContent", exception.Message); + Assert.Null(capture.Messages); + Assert.Equal(hasPendingRequest, HasPendingRequest(session, RequestId)); + } + + [Fact] + public async Task GetResponseAsync_ReplayedBatch_DecisionsFollowRequestsAndPrecedeNewTextAsync() + { + // Arrange + var requests = new List + { + new(RequestId, new FunctionCallContent("call1", "toolA")), + new("req2", new FunctionCallContent("call2", "toolB")) + }; + var session = new ChatClientAgentSession(); + await RecordRequestsAsync(session, requests); + var capture = new Capture(); + var decorator = new ApprovalResponseBindingChatClient(CreateCapturingChatClient(capture)); + var previousQuestion = new ChatMessage(ChatRole.User, "Previous question."); + var requestMessage = new ChatMessage(ChatRole.Assistant, requests.Cast().ToList()); + var nextQuestion = new ChatMessage(ChatRole.User, "New question."); + List input = + [ + previousQuestion, + requestMessage, + nextQuestion, + new(ChatRole.User, [requests[0].CreateResponse(true)]) + ]; + + // Act + await RunAsync(decorator, session, input); + + // Assert + Assert.Equal(4, input.Count); + Assert.Same(previousQuestion, capture.Messages![0]); + Assert.Equal(2, capture.Messages[1].Contents.OfType().Count()); + Assert.True(Assert.Single(capture.Messages[2].Contents.OfType()).Approved); + Assert.False(Assert.Single(capture.Messages[3].Contents.OfType()).Approved); + Assert.Same(nextQuestion, capture.Messages[4]); + } + + [Fact] + public async Task GetResponseAsync_RequestMissingFromHistory_PreservesHistoricalPrefixAsync() + { + // Arrange + var request = new ToolApprovalRequestContent(RequestId, new FunctionCallContent("call1", "toolA")); + var session = new ChatClientAgentSession(); + await RecordRequestAsync(session, request); + var capture = new Capture(); + var decorator = new ApprovalResponseBindingChatClient(CreateCapturingChatClient(capture)); + var history = new ChatMessage(ChatRole.User, "Previous question.") + .WithAgentRequestMessageSource(AgentRequestMessageSourceType.ChatHistory); + var question = new ChatMessage(ChatRole.User, "New question."); + + // Act + await RunAsync(decorator, session, + [ + history, + question, + new ChatMessage(ChatRole.User, [request.CreateResponse(true)]) + ]); + + // Assert + Assert.Same(history, capture.Messages![0]); + Assert.True(Assert.Single(capture.Messages[1].Contents.OfType()).Approved); + Assert.Same(question, capture.Messages[2]); } [Fact] @@ -450,6 +894,88 @@ await Assert.ThrowsAsync( Assert.True(HasPendingRequest(session, RequestId)); } + [Fact] + public async Task GetResponseAsync_GeneratedRejection_ReturnedCallIsNotChangedByInnerClientAsync() + { + // Arrange + var session = new ChatClientAgentSession(); + await RecordRequestAsync(session, new ToolApprovalRequestContent(RequestId, new FunctionCallContent("call1", "toolA"))); + ToolApprovalResponseContent? processedDecision = null; + var inner = CreateMockChatClient((messages, _, _) => + { + processedDecision = Assert.Single(messages.SelectMany(m => m.Contents).OfType()); + Assert.IsType(processedDecision.ToolCall).InformationalOnly = true; + return Task.FromResult(new ChatResponse([new ChatMessage(ChatRole.Assistant, "Done.")])); + }); + + // Act + var response = await RunAsync(new ApprovalResponseBindingChatClient(inner), session, []); + + // Assert + var returnedDecision = Assert.IsType(Assert.Single(response.Messages[0].Contents)); + Assert.False(returnedDecision.Approved); + Assert.Equal(RequestId, returnedDecision.RequestId); + Assert.Equal(processedDecision!.Reason, returnedDecision.Reason); + Assert.NotSame(processedDecision.ToolCall, returnedDecision.ToolCall); + Assert.False(Assert.IsType(returnedDecision.ToolCall).InformationalOnly); + Assert.Equal("Done.", response.Messages[1].Text); + Assert.False(HasPendingRequest(session, RequestId)); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task GetStreamingResponseAsync_GeneratedRejection_AbnormalEndRetainsPendingRequestAsync(bool stopAfterDecision) + { + // Arrange + var session = new ChatClientAgentSession(); + await RecordRequestAsync(session, new ToolApprovalRequestContent(RequestId, new FunctionCallContent("call1", "toolA"))); + int innerCalls = 0; + var inner = CreateMockStreamingChatClient((_, _, _) => + { + innerCalls++; + return ThrowingUpdatesAsync(new InvalidOperationException("Service failure.")); + }); + var decorator = new ApprovalResponseBindingChatClient(inner); + List updates = []; + var agent = new TestAIAgent + { + RunAsyncFunc = async (_, _, _, ct) => + { + await foreach (var update in decorator.GetStreamingResponseAsync([], null, ct)) + { + updates.Add(update); + if (stopAfterDecision) + { + break; + } + } + + return new AgentResponse(); + } + }; + + // Act + if (stopAfterDecision) + { + await agent.RunAsync([], session); + } + else + { + await Assert.ThrowsAsync(() => agent.RunAsync([], session)); + } + + // Assert + var decisionUpdate = Assert.Single(updates); + Assert.Equal(ChatRole.User, decisionUpdate.Role); + Assert.NotNull(decisionUpdate.MessageId); + var decision = Assert.IsType(Assert.Single(decisionUpdate.Contents)); + Assert.Equal(RequestId, decision.RequestId); + Assert.False(decision.Approved); + Assert.Equal(stopAfterDecision ? 0 : 1, innerCalls); + Assert.True(HasPendingRequest(session, RequestId)); + } + [Fact] public async Task GetStreamingResponseAsync_ConsumerStopsEarly_RetainsPendingEntryAndRecordsEmittedRequestAsync() { @@ -595,6 +1121,7 @@ public async Task GetResponseAsync_SettledApprovalWithResultInHistory_IsPreserve // present. Nothing is recorded server-side because the pending entry was consumed when it was answered. var session = new ChatClientAgentSession(); var call = new FunctionCallContent("call1", "toolA"); + var decision = new ToolApprovalResponseContent(RequestId, approved: true, call); var capture = new Capture(); var decorator = new ApprovalResponseBindingChatClient(CreateCapturingChatClient(capture)); @@ -605,16 +1132,18 @@ await RunAsync( session, [ new ChatMessage(ChatRole.Assistant, [new ToolApprovalRequestContent(RequestId, call)]), - new ChatMessage(ChatRole.User, [new ToolApprovalResponseContent(RequestId, approved: true, call)]), + new ChatMessage(ChatRole.User, [decision]), new ChatMessage(ChatRole.Tool, [new FunctionResultContent("call1", "result")]), new ChatMessage(ChatRole.User, "next question") ]); - // Assert — the settled pair survives untouched. The call already has a result so it cannot execute again, - // and dropping the response would strand the request and break every later turn of a replayed conversation. + // Assert — the settled pair remains historical context and cannot execute again. var forwarded = capture.Messages!.SelectMany(m => m.Contents).ToList(); Assert.Contains(forwarded, c => c is ToolApprovalRequestContent); - Assert.Contains(forwarded, c => c is ToolApprovalResponseContent { Approved: true }); + Assert.Same(decision, Assert.Single(forwarded.OfType())); + Assert.All(forwarded.OfType(), r => Assert.False(Assert.IsType(r.ToolCall).InformationalOnly)); + Assert.All(forwarded.OfType(), r => Assert.False(Assert.IsType(r.ToolCall).InformationalOnly)); + Assert.False(call.InformationalOnly); } [Fact] @@ -834,7 +1363,7 @@ [new ChatMessage(ChatRole.User, [new ToolApprovalResponseContent(RequestId, appr private sealed class Capture { - public IList? Messages { get; set; } + public List? Messages { get; set; } } private static IChatClient CreateCapturingChatClient(Capture capture, string reply = "done") diff --git a/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ChatClientAgent_ApprovalRetryTests.cs b/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ChatClientAgent_ApprovalRetryTests.cs index d3eb637bc44..70dc2fcc925 100644 --- a/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ChatClientAgent_ApprovalRetryTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.UnitTests/ChatClient/ChatClientAgent_ApprovalRetryTests.cs @@ -5,6 +5,8 @@ using System.Linq; using System.Net.Http; using System.Runtime.CompilerServices; +using System.Text.Json; +using System.Text.Json.Serialization.Metadata; using System.Threading; using System.Threading.Tasks; using Microsoft.Extensions.AI; @@ -210,6 +212,437 @@ await Assert.ThrowsAsync( Assert.Equal(0, toolInvocations); } + [Theory] + [InlineData(false, false, false)] + [InlineData(false, true, false)] + [InlineData(true, false, false)] + [InlineData(true, true, false)] + [InlineData(false, false, true)] + [InlineData(false, true, true)] + [InlineData(true, false, true)] + [InlineData(true, true, true)] + public async Task RunAsync_WhenApprovalIsAbandoned_RestoredSessionCanContinueAsync( + bool streaming, bool perServiceCallPersistence, bool failFirstAttempt) + { + // Arrange + int toolInvocations = 0; + List> serviceInputs = []; + var client = CreateChatClient((messages, _, _) => + { + serviceInputs.Add(messages.ToList()); + if (failFirstAttempt && serviceInputs.Count == 2) + { + throw new HttpRequestException("Simulated failure while rejecting an unanswered approval."); + } + + return Task.FromResult(serviceInputs.Count == 1 + ? new ChatResponse([new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("call1", "GetWeather")])]) + : new ChatResponse([new ChatMessage(ChatRole.Assistant, "Here is a joke.")])); + }); + + var agent = CreateAgent(client, () => { toolInvocations++; return "Sunny"; }, perServiceCallPersistence); + var session = await agent.CreateSessionAsync(); + + Task RunAsync(IEnumerable messages, AgentSession currentSession) => streaming + ? agent.RunStreamingAsync(messages, currentSession).ToAgentResponseAsync() + : agent.RunAsync(messages, currentSession); + + var firstResponse = await RunAsync([new ChatMessage(ChatRole.User, "What's the weather?")], session); + var request = Assert.Single(GetApprovalRequests(firstResponse)); + session = await agent.DeserializeSessionAsync(await agent.SerializeSessionAsync(session)); + + // Act + if (failFirstAttempt) + { + await Assert.ThrowsAsync(() => RunAsync([new ChatMessage(ChatRole.User, "Tell me a joke instead.")], session)); + Assert.True(HasPendingApprovalRequests(session)); + Assert.True(session.StateBag.TryGetValue>( + ApprovalResponseBindingChatClient.StateBagKey, out var pending, AgentJsonUtilities.DefaultOptions)); + Assert.False(Assert.IsType(Assert.Single(pending!).ToolCall).InformationalOnly); + } + + var response = await RunAsync([new ChatMessage(ChatRole.User, "Tell me a joke instead.")], session); + await RunAsync([new ChatMessage(ChatRole.User, "Another joke, please.")], session); + await RunAsync([new ChatMessage(ChatRole.User, [request.CreateResponse(approved: true)])], session); + + // Assert + Assert.Equal("Here is a joke.", response.Text); + var returnedDecision = Assert.IsType(Assert.Single(response.Messages[0].Contents)); + Assert.Equal(ChatRole.User, response.Messages[0].Role); + Assert.Equal(request.RequestId, returnedDecision.RequestId); + Assert.False(returnedDecision.Approved); + Assert.Single(response.Messages.SelectMany(m => m.Contents).OfType()); + Assert.Equal(0, toolInvocations); + Assert.False(HasPendingApprovalRequests(session)); + Assert.Contains(serviceInputs[1], m => m.Text == "Tell me a joke instead."); + var rejection = Assert.Single(serviceInputs[1].SelectMany(m => m.Contents).OfType()); + Assert.Equal("call1", rejection.CallId); + Assert.Contains("rejected", rejection.Result?.ToString()); + Assert.True(serviceInputs[1].FindIndex(m => m.Contents.Contains(rejection)) + < serviceInputs[1].FindIndex(m => m.Text == "Tell me a joke instead.")); + var history = ChatClientAgentTestHelper.GetPersistedHistory(agent, session); + Assert.Single(history.SelectMany(m => m.Contents).OfType()); + Assert.Equal(perServiceCallPersistence ? 0 : 1, + history.SelectMany(m => m.Contents).OfType().Count(r => !r.Approved)); + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task RunAsync_PartiallyAnsweredBatch_RejectsMissingAnswerAndPreservesAutomaticApprovalAsync( + bool streaming, bool perServiceCallPersistence) + { + // Arrange + List invokedTools = []; + int serviceCalls = 0; + List resumedMessages = []; + var client = CreateChatClient((messages, _, _) => + { + if (++serviceCalls == 1) + { + return Task.FromResult(new ChatResponse([new ChatMessage(ChatRole.Assistant, + [ + new FunctionCallContent("call1", "Approved"), + new FunctionCallContent("call2", "Unanswered"), + new FunctionCallContent("call3", "Automatic"), + new FunctionCallContent("call4", "Rejected") + ])])); + } + + resumedMessages = messages.ToList(); + return Task.FromResult(new ChatResponse([new ChatMessage(ChatRole.Assistant, "Done.")])); + }); + AIFunction CreateTool(string name) => AIFunctionFactory.Create(() => { invokedTools.Add(name); return name; }, name); + var agent = new ChatClientAgent(client, new ChatClientAgentOptions + { + ChatOptions = new() + { + Tools = + [ + new ApprovalRequiredAIFunction(CreateTool("Approved")), + new ApprovalRequiredAIFunction(CreateTool("Unanswered")), + CreateTool("Automatic"), + new ApprovalRequiredAIFunction(CreateTool("Rejected")) + ] + }, + RequirePerServiceCallChatHistoryPersistence = perServiceCallPersistence + }); + var session = await agent.CreateSessionAsync(); + Task RunAsync(IEnumerable messages) => streaming + ? agent.RunStreamingAsync(messages, session).ToAgentResponseAsync() + : agent.RunAsync(messages, session); + var first = await RunAsync([new ChatMessage(ChatRole.User, "Use the tools.")]); + var requests = GetApprovalRequests(first); + Assert.Equal(3, requests.Count); + session = await agent.DeserializeSessionAsync(await agent.SerializeSessionAsync(session)); + var approved = requests.Single(r => r.ToolCall.CallId == "call1"); + var rejected = requests.Single(r => r.ToolCall.CallId == "call4"); + + // Act + var response = await RunAsync([new ChatMessage(ChatRole.User, [approved.CreateResponse(true), rejected.CreateResponse(false)])]); + + // Assert + Assert.Equal(2, invokedTools.Count); + Assert.Contains("Approved", invokedTools); + Assert.Contains("Automatic", invokedTools); + var results = resumedMessages.SelectMany(m => m.Contents).OfType().ToList(); + Assert.Equal(4, results.Count); + Assert.Contains("rejected", results.Single(r => r.CallId == "call2").Result?.ToString()); + Assert.Contains("rejected", results.Single(r => r.CallId == "call4").Result?.ToString()); + Assert.False(HasPendingApprovalRequests(session)); + var returnedDecision = Assert.Single(response.Messages.SelectMany(m => m.Contents).OfType()); + Assert.Equal("call2", returnedDecision.ToolCall.CallId); + Assert.False(returnedDecision.Approved); + Assert.IsType(Assert.Single(response.Messages[0].Contents)); + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task RunAsync_WhenAutomaticRejectionFails_OriginalRequestCanBeApprovedAsync( + bool streaming, bool perServiceCallPersistence) + { + // Arrange + int toolInvocations = 0; + int serviceCalls = 0; + var client = CreateChatClient((_, _, _) => Task.FromResult(++serviceCalls switch + { + 1 => new ChatResponse([new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("call1", "GetWeather")])]), + 2 => throw new HttpRequestException("Failed while rejecting the unanswered request."), + _ => new ChatResponse([new ChatMessage(ChatRole.Assistant, "Done.")]), + })); + var agent = CreateAgent(client, () => { toolInvocations++; return "Sunny"; }, perServiceCallPersistence); + var session = await agent.CreateSessionAsync(); + Task RunAsync(IEnumerable messages) => streaming + ? agent.RunStreamingAsync(messages, session).ToAgentResponseAsync() + : agent.RunAsync(messages, session); + var first = await RunAsync([new ChatMessage(ChatRole.User, "Weather?")]); + var request = Assert.Single(GetApprovalRequests(first)); + + // Act + await Assert.ThrowsAsync(() => RunAsync([new ChatMessage(ChatRole.User, "Never mind.")])); + var originalCallWasChanged = Assert.IsType(request.ToolCall).InformationalOnly; + var response = await RunAsync([new ChatMessage(ChatRole.User, [request.CreateResponse(approved: true)])]); + + // Assert + Assert.False(originalCallWasChanged); + Assert.Equal(1, toolInvocations); + Assert.Equal("Done.", response.Text); + Assert.False(HasPendingApprovalRequests(session)); + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task RunAsync_ServiceOwnedHistory_MixedDecisionsPrecedeNewContentAsync( + bool streaming, bool perServiceCallPersistence) + { + // Arrange + int serviceCalls = 0; + List outgoing = []; + List invoked = []; + var client = CreateChatClient((messages, _, _) => + { + outgoing = messages.ToList(); + return Task.FromResult(++serviceCalls == 1 + ? new ChatResponse([new ChatMessage(ChatRole.Assistant, + [ + new FunctionCallContent("approved", "Approved"), + new FunctionCallContent("unanswered", "Unanswered"), + new FunctionCallContent("automatic", "Automatic"), + new FunctionCallContent("rejected", "Rejected") + ])]) + { ConversationId = "server-conversation" } + : new ChatResponse([new ChatMessage(ChatRole.Assistant, "Done.")]) { ConversationId = "server-conversation" }); + }); + AIFunction Tool(string name) => AIFunctionFactory.Create(() => { invoked.Add(name); return name; }, name); + var agent = new ChatClientAgent(client, new ChatClientAgentOptions + { + ChatOptions = new() + { + Tools = + [ + new ApprovalRequiredAIFunction(Tool("Approved")), + new ApprovalRequiredAIFunction(Tool("Unanswered")), + Tool("Automatic"), + new ApprovalRequiredAIFunction(Tool("Rejected")) + ] + }, + RequirePerServiceCallChatHistoryPersistence = perServiceCallPersistence + }); + var session = await agent.CreateSessionAsync("server-conversation"); + Task RunAsync(IEnumerable messages) => streaming + ? agent.RunStreamingAsync(messages, session).ToAgentResponseAsync() + : agent.RunAsync(messages, session); + var first = await RunAsync([new ChatMessage(ChatRole.User, "Use the tools.")]); + var requests = GetApprovalRequests(first); + var answer = new ChatMessage(ChatRole.User, + [ + requests.Single(r => r.ToolCall.CallId == "approved").CreateResponse(true), + new TextContent("Text accompanying the answer.") + ]) + { MessageId = "answer" }; + List input = + [ + new(ChatRole.User, "A new question."), + answer, + new(ChatRole.User, [requests.Single(r => r.ToolCall.CallId == "rejected").CreateResponse(false)]) + ]; + + // Act + var response = await RunAsync(input); + + // Assert + Assert.Equal(3, input.Count); + Assert.Equal(2, answer.Contents.Count); + Assert.Equal(2, invoked.Count); + Assert.Contains("Approved", invoked); + Assert.Contains("Automatic", invoked); + Assert.Equal(4, outgoing.SelectMany(m => m.Contents).OfType().Count()); + int lastResultIndex = outgoing.FindLastIndex(m => m.Contents.Any(c => c is FunctionResultContent)); + Assert.True(lastResultIndex < outgoing.FindIndex(m => m.Text == "A new question.")); + Assert.True(lastResultIndex < outgoing.FindIndex(m => m.Text == "Text accompanying the answer.")); + Assert.All(outgoing.Take(lastResultIndex + 1), m => Assert.Equal(ChatRole.Tool, m.Role)); + Assert.Equal("answer", outgoing.Single(m => m.Text == "Text accompanying the answer.").MessageId); + Assert.DoesNotContain(outgoing.SelectMany(m => m.Contents), c => c is FunctionCallContent); + Assert.DoesNotContain(outgoing.SelectMany(m => m.Contents), + c => c is ToolApprovalRequestContent or ToolApprovalResponseContent); + var returnedDecision = Assert.Single(response.Messages.SelectMany(m => m.Contents).OfType()); + Assert.Equal("unanswered", returnedDecision.ToolCall.CallId); + Assert.False(returnedDecision.Approved); + Assert.IsType(Assert.Single(response.Messages[0].Contents)); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task RunAsync_AbandonedApprovalWithSerializedHistory_ThirdRunSucceedsAsync(bool streaming) + { + // Arrange + int serviceCalls = 0; + int toolInvocations = 0; + List> serviceInputs = []; + var client = CreateChatClient((messages, _, _) => + { + serviceInputs.Add(messages.ToList()); + return Task.FromResult(++serviceCalls == 1 + ? new ChatResponse([new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("call1", "GetWeather")])]) + : new ChatResponse([new ChatMessage(ChatRole.Assistant, "Done.")])); + }); + var history = new SerializedChatHistoryProvider(); + var agent = new ChatClientAgent(client, new ChatClientAgentOptions + { + ChatOptions = new() + { + Tools = [new ApprovalRequiredAIFunction(AIFunctionFactory.Create(() => { toolInvocations++; return "Sunny"; }, "GetWeather"))] + }, + ChatHistoryProvider = history + }); + var session = await agent.CreateSessionAsync(); + Task RunAsync(string text) => streaming + ? agent.RunStreamingAsync(text, session).ToAgentResponseAsync() + : agent.RunAsync(text, session); + await RunAsync("Weather?"); + + // Act + var recovered = await RunAsync("Never mind."); + var savedDecision = Assert.Single(history.Messages.SelectMany(m => m.Contents).OfType()); + Assert.False(savedDecision.Approved); + Assert.False(Assert.IsType(savedDecision.ToolCall).InformationalOnly); + var savedRequest = Assert.Single(history.Messages.SelectMany(m => m.Contents).OfType()); + Assert.False(Assert.IsType(savedRequest.ToolCall).InformationalOnly); + Assert.IsType(Assert.Single(recovered.Messages[0].Contents)); + session = await agent.DeserializeSessionAsync(await agent.SerializeSessionAsync(session)); + var response = await RunAsync("Another question."); + + // Assert + Assert.Equal("Done.", response.Text); + Assert.Equal(0, toolInvocations); + Assert.Equal(3, serviceCalls); + Assert.False(HasPendingApprovalRequests(session)); + Assert.Single(history.Messages.SelectMany(m => m.Contents).OfType()); + Assert.Single(history.Messages.SelectMany(m => m.Contents).OfType()); + Assert.False(Assert.IsType( + Assert.Single(history.Messages.SelectMany(m => m.Contents).OfType()).ToolCall).InformationalOnly); + Assert.DoesNotContain(response.Messages.SelectMany(m => m.Contents), c => c is ToolApprovalResponseContent); + for (int i = 1; i < serviceInputs.Count; i++) + { + var input = serviceInputs[i]; + int callIndex = input.FindIndex(m => m.Contents.OfType().Any(c => c.CallId == "call1")); + int resultIndex = input.FindIndex(m => m.Contents.OfType().Any(c => c.CallId == "call1")); + Assert.True(callIndex >= 0); + Assert.Equal(callIndex + 1, resultIndex); + Assert.DoesNotContain(input.SelectMany(m => m.Contents), c => c is ToolApprovalRequestContent or ToolApprovalResponseContent); + Assert.True(resultIndex < input.FindIndex(m => m.Text == (i == 1 ? "Never mind." : "Another question."))); + if (i == 2) + { + // End-of-run storage appends the recovery input before its returned call/result pair. + Assert.True(input.FindIndex(m => m.Text == "Never mind.") < callIndex); + } + } + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task RunAsync_WhenLaterServiceCallFails_ServiceOwnedHistoryMayReceiveResultAgainAsync( + bool streaming, bool approveRetry) + { + // Arrange + int serviceCalls = 0; + int weatherInvocations = 0; + List acceptedWeatherResults = []; + var client = CreateChatClient((messages, _, _) => + { + if (++serviceCalls == 3) + { + throw new HttpRequestException("A later call failed after the weather result was accepted."); + } + + acceptedWeatherResults.AddRange(messages.SelectMany(m => m.Contents) + .OfType().Where(r => r.CallId == "weather")); + var response = serviceCalls switch + { + 1 => new ChatResponse([new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("weather", "GetWeather")])]), + 2 => new ChatResponse([new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("followup", "FollowUp")])]), + _ => new ChatResponse([new ChatMessage(ChatRole.Assistant, "Done.")]), + }; + response.ConversationId = "server-conversation"; + return Task.FromResult(response); + }); + var agent = new ChatClientAgent(client, new ChatClientAgentOptions + { + ChatOptions = new() + { + Tools = + [ + new ApprovalRequiredAIFunction(AIFunctionFactory.Create(() => { weatherInvocations++; return "Sunny"; }, "GetWeather")), + AIFunctionFactory.Create(() => "Follow-up result", "FollowUp") + ] + }, + RequirePerServiceCallChatHistoryPersistence = true + }); + var session = await agent.CreateSessionAsync("server-conversation"); + Task RunAsync(IEnumerable messages) => streaming + ? agent.RunStreamingAsync(messages, session).ToAgentResponseAsync() + : agent.RunAsync(messages, session); + var first = await RunAsync([new ChatMessage(ChatRole.User, "Weather?")]); + var request = Assert.Single(GetApprovalRequests(first)); + await Assert.ThrowsAsync(() => RunAsync([new ChatMessage(ChatRole.User, [request.CreateResponse(true)])])); + Assert.Single(acceptedWeatherResults); + Assert.True(HasPendingApprovalRequests(session)); + + // Act + await RunAsync(approveRetry ? [new ChatMessage(ChatRole.User, [request.CreateResponse(true)])] : []); + + // Assert — neither the original nor automatic-answer retry knows what the service saved. + Assert.Equal(2, acceptedWeatherResults.Count); + Assert.Equal("Sunny", acceptedWeatherResults[0].Result?.ToString()); + Assert.Equal(approveRetry ? 2 : 1, weatherInvocations); + if (approveRetry) + { + Assert.Equal("Sunny", acceptedWeatherResults[1].Result?.ToString()); + } + else + { + Assert.Contains("rejected", acceptedWeatherResults[1].Result?.ToString()); + } + } + + private sealed class SerializedChatHistoryProvider : ChatHistoryProvider + { + private readonly List _messages = []; + private readonly JsonSerializerOptions _options = new(AgentJsonUtilities.DefaultOptions) + { + TypeInfoResolver = JsonTypeInfoResolver.Combine( + AgentJsonUtilities.DefaultOptions.TypeInfoResolver, new DefaultJsonTypeInfoResolver()) + }; + + public IEnumerable Messages => this._messages.Select(m => JsonSerializer.Deserialize(m, this._options)!); + + protected override ValueTask> ProvideChatHistoryAsync( + InvokingContext context, CancellationToken cancellationToken = default) => new(this.Messages); + + protected override ValueTask StoreChatHistoryAsync( + InvokedContext context, CancellationToken cancellationToken = default) + { + foreach (var message in context.RequestMessages.Concat(context.ResponseMessages!)) + { + this._messages.Add(JsonSerializer.Serialize(message, this._options)); + } + + return default; + } + } + private static bool HasPendingApprovalRequests(AgentSession session) => session.StateBag.TryGetValue>( ApprovalResponseBindingChatClient.StateBagKey, @@ -217,7 +650,7 @@ private static bool HasPendingApprovalRequests(AgentSession session) AgentJsonUtilities.DefaultOptions) && pending is { Count: > 0 }; - private static ChatClientAgent CreateAgent(IChatClient chatClient, Func? getWeather = null) + private static ChatClientAgent CreateAgent(IChatClient chatClient, Func? getWeather = null, bool perServiceCallPersistence = false) => new( chatClient, options: new ChatClientAgentOptions @@ -226,7 +659,8 @@ private static ChatClientAgent CreateAgent(IChatClient chatClient, Func? { Tools = [new ApprovalRequiredAIFunction(AIFunctionFactory.Create(getWeather ?? (() => "Sunny, 22°C"), "GetWeather"))] }, - ChatHistoryProvider = new InMemoryChatHistoryProvider() + ChatHistoryProvider = new InMemoryChatHistoryProvider(), + RequirePerServiceCallChatHistoryPersistence = perServiceCallPersistence }, services: new ServiceCollection().BuildServiceProvider()); @@ -243,7 +677,21 @@ private static IChatClient CreateChatClient( var mock = new Mock(); mock.Setup(c => c.GetResponseAsync(It.IsAny>(), It.IsAny(), It.IsAny())) .Returns(onGetResponse); + mock.Setup(c => c.GetStreamingResponseAsync(It.IsAny>(), It.IsAny(), It.IsAny())) + .Returns((IEnumerable messages, ChatOptions? options, CancellationToken ct) => + RespondStreamingAsync(messages, options, ct)); return mock.Object; + + async IAsyncEnumerable RespondStreamingAsync( + IEnumerable messages, ChatOptions? options, [EnumeratorCancellation] CancellationToken ct) + { + var response = await onGetResponse(messages, options, ct); + foreach (var update in response.ToChatResponseUpdates()) + { + ct.ThrowIfCancellationRequested(); + yield return update; + } + } } private static IChatClient CreateStreamingChatClient(Func> onGetStreamingResponse) diff --git a/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/BackgroundAgents/BackgroundAgentsProviderTests.cs b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/BackgroundAgents/BackgroundAgentsProviderTests.cs index e287fdb7b9b..15dc857d19e 100644 --- a/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/BackgroundAgents/BackgroundAgentsProviderTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/BackgroundAgents/BackgroundAgentsProviderTests.cs @@ -489,8 +489,9 @@ await startBackgroundTask.InvokeAsync(new AIFunctionArguments Assert.False(wait.IsCompleted); // Act — hold the lock until the continuation is registered so the old waiter observes the new run. + // Use a dedicated thread so this blocking lock does not starve the background runs' thread pool. ValueTask continuation = default; - await Task.Run(() => + await Task.Factory.StartNew(() => { lock (runtimeState.SyncRoot) { @@ -506,15 +507,16 @@ await Task.Run(() => continuationRun = runtimeState.InFlightTasks[1]; continuationCancellation = runtimeState.TaskCancellations[1]; Assert.NotSame(firstRun, continuationRun); - Assert.True(SpinWait.SpinUntil(() => continuationStarted.Task.IsCompleted, TimeSpan.FromSeconds(5))); Assert.False(wait.IsCompleted); } - }); + }, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default); // Assert — the stale waiter preserves the continuation's metadata and runtime resources. Assert.Equal("Task 1 continued with new input.", GetStringResult(await continuation)); - Task completedWait = await Task.WhenAny(wait, Task.Delay(TimeSpan.FromSeconds(5))); - Assert.Same(wait, completedWait); + Task resumedTasks = Task.WhenAll(wait, continuationStarted.Task); + Task completedWait = await Task.WhenAny(resumedTasks, Task.Delay(TimeSpan.FromSeconds(5))); + Assert.Same(resumedTasks, completedWait); + await resumedTasks; Assert.Equal("Task 1 finished with status: Running.", GetStringResult(await wait)); BackgroundTaskInfo taskInfo = Assert.Single(provider.GetIncompleteTasks(session)); Assert.Equal(BackgroundTaskStatus.Running, taskInfo.Status); diff --git a/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/FileStore/AgentFileStoreContractTests.cs b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/FileStore/AgentFileStoreContractTests.cs index 027bdd48eb6..d9e92af81b7 100644 --- a/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/FileStore/AgentFileStoreContractTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/FileStore/AgentFileStoreContractTests.cs @@ -75,6 +75,34 @@ protected override Task> FindMatchingFilesAsync(string dir => Task.FromResult>(this.Indexed.OrderBy(x => x, StringComparer.Ordinal).ToList()); } + private sealed class CancelOnReadStore(CancellationTokenSource cancellationTokenSource) : ContentOnlyStore + { + public override Task ReadAsync(string path, CancellationToken cancellationToken = default) + { + cancellationTokenSource.Cancel(); + return Task.FromResult(Needle); + } + } + + private sealed class DeadlineTokenStore : ContentOnlyStore + { + public bool DiscoveryTokenCanBeCanceled { get; private set; } + + public bool ReadTokenCanBeCanceled { get; private set; } + + protected override Task> FindMatchingFilesAsync(string directory, string regexPattern, string? globPattern = null, bool recursive = false, CancellationToken cancellationToken = default) + { + this.DiscoveryTokenCanBeCanceled = cancellationToken.CanBeCanceled; + return Task.FromResult>(["f.txt"]); + } + + public override Task ReadAsync(string path, CancellationToken cancellationToken = default) + { + this.ReadTokenCanBeCanceled = cancellationToken.CanBeCanceled; + return base.ReadAsync(path, cancellationToken); + } + } + [Fact] public void SplitLines_PublishesTheEditorsRule() { @@ -245,6 +273,35 @@ await Assert.ThrowsAnyAsync( Assert.Equal(0, store.Listings); } + [Fact] + public async Task BaseSearch_StopsScanningWhenReadCancelsAsync() + { + // Arrange + using var cts = new CancellationTokenSource(); + var store = new CancelOnReadStore(cts); + await store.WriteAsync("f.txt", Needle); + + // Act + Assert + await Assert.ThrowsAnyAsync( + () => store.SearchAsync(string.Empty, Needle, cancellationToken: cts.Token)); + } + + [Fact] + public async Task BaseSearch_PassesDeadlineTokenToDiscoveryAndReadAsync() + { + // Arrange + var store = new DeadlineTokenStore(); + await store.WriteAsync("f.txt", Needle); + + // Act + IReadOnlyList results = await store.SearchAsync(string.Empty, Needle); + + // Assert + Assert.Single(results); + Assert.True(store.DiscoveryTokenCanBeCanceled); + Assert.True(store.ReadTokenCanBeCanceled); + } + [Fact] public void ScanContent_NullFileName_Throws() { @@ -254,4 +311,23 @@ public void ScanContent_NullFileName_Throws() // Act & Assert Assert.Throws(() => AgentFileStore.ScanContent(null!, Needle, regex)); } + + [Fact] + public void ScanContent_NullRegex_Throws() + { + // Act + Assert + Assert.Throws(() => AgentFileStore.ScanContent("f.txt", Needle, null!)); + } + + [Fact] + public void ScanContent_PreCancelledToken_Throws() + { + // Arrange + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + // Act + Assert + Assert.ThrowsAny( + () => AgentFileStore.ScanContent("f.txt", Needle, new Regex(Needle), cts.Token)); + } } diff --git a/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/FileStore/InMemoryAgentFileStoreTests.cs b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/FileStore/InMemoryAgentFileStoreTests.cs index 7907007a039..b98b9ad2366 100644 --- a/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/FileStore/InMemoryAgentFileStoreTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/FileStore/InMemoryAgentFileStoreTests.cs @@ -2,12 +2,27 @@ using System; using System.Linq; +using System.Threading; using System.Threading.Tasks; namespace Microsoft.Agents.AI.UnitTests.Harness.FileMemory; public class InMemoryAgentFileStoreTests { + [Fact] + public async Task SearchFiles_PreCancelledToken_ThrowsAsync() + { + // Arrange + var store = new InMemoryAgentFileStore(); + await store.WriteAsync("notes.md", "Hello world"); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + // Act + Assert + await Assert.ThrowsAnyAsync( + () => store.SearchAsync("", "Hello", cancellationToken: cts.Token)); + } + [Fact] public async Task WriteAndReadFile_ReturnsContentAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/MultiStepOperationTimeoutTests.cs b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/MultiStepOperationTimeoutTests.cs new file mode 100644 index 00000000000..cc1c30a7143 --- /dev/null +++ b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/MultiStepOperationTimeoutTests.cs @@ -0,0 +1,52 @@ +// Copyright (c) Microsoft. All rights reserved. + +using System; +using System.Threading; +using System.Threading.Tasks; + +namespace Microsoft.Agents.AI.UnitTests.Harness; + +public sealed class MultiStepOperationTimeoutTests +{ + [Fact] + public async Task RunStep_CompletedStepDoesNotResetTimeoutAsync() + { + // Arrange + using var timeout = new MultiStepOperationTimeout(TimeSpan.FromMilliseconds(100), CancellationToken.None); + + // Act + int firstResult = timeout.RunStep(_ => 1); + await Task.Delay(200); + + // Assert + Assert.Equal(1, firstResult); + Assert.Throws(() => timeout.RunStep(_ => 2)); + } + + [Fact] + public async Task RunStepAsync_OperationIgnoresToken_ThrowsTimeoutExceptionAsync() + { + // Arrange + using var timeout = new MultiStepOperationTimeout(TimeSpan.FromMilliseconds(50), CancellationToken.None); + var pending = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + // Act + Assert + await Assert.ThrowsAsync(() => timeout.RunStepAsync(_ => pending.Task)); + } + + [Fact] + public async Task RunStepAsync_CallerCancels_ThrowsOperationCanceledExceptionAsync() + { + // Arrange + using var cts = new CancellationTokenSource(); + using var timeout = new MultiStepOperationTimeout(TimeSpan.FromSeconds(5), cts.Token); + var pending = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + Task operation = timeout.RunStepAsync(_ => pending.Task); + + // Act + cts.Cancel(); + + // Assert + await Assert.ThrowsAnyAsync(() => operation); + } +} diff --git a/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/ToolApproval/ToolApprovalAgentTests.cs b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/ToolApproval/ToolApprovalAgentTests.cs index ad785d0e9e2..a80e7f24c96 100644 --- a/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/ToolApproval/ToolApprovalAgentTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.UnitTests/Harness/ToolApproval/ToolApprovalAgentTests.cs @@ -3285,6 +3285,205 @@ public async Task RunStreamingAsync_AutoApprovalRule_ApprovesMatchingToolAsync() #endregion + #region Duplicate approval request IDs + + /// + /// Verify that one request ID cannot refer to two different tool calls. + /// + [Fact] + public async Task RunAsync_DifferentCallsWithSameRequestId_ThrowsAsync() + { + // Arrange + var harmless = new ToolApprovalRequestContent( + "shared-id", + new FunctionCallContent("shared-call", "BenignLookup", new Dictionary { ["query"] = "weather" })); + var privileged = new ToolApprovalRequestContent( + "shared-id", + new FunctionCallContent("shared-call", "RunPrivilegedShell", new Dictionary { ["command"] = "sensitive-command" })); + var innerAgent = CreateMockAgent(new AgentResponse([new ChatMessage(ChatRole.Assistant, [harmless, privileged])])); + var agent = new ToolApprovalAgent(innerAgent.Object); + + // Act + var exception = await Assert.ThrowsAsync( + () => agent.RunAsync([new ChatMessage(ChatRole.User, "Go")], new ChatClientAgentSession())); + + // Assert + Assert.Contains("shared-id", exception.Message, StringComparison.Ordinal); + Assert.DoesNotContain("RunPrivilegedShell", exception.Message, StringComparison.Ordinal); + Assert.DoesNotContain("sensitive-command", exception.Message, StringComparison.Ordinal); + } + + /// + /// Verify that repeating the exact same request under one ID is rejected. + /// + [Fact] + public async Task RunAsync_EquivalentCallsWithSameRequestId_ThrowsAsync() + { + // Arrange + var first = new ToolApprovalRequestContent( + "shared-id", + new FunctionCallContent("shared-call", "BenignLookup", new Dictionary { ["query"] = "weather" })); + var repeated = new ToolApprovalRequestContent( + "shared-id", + new FunctionCallContent("shared-call", "BenignLookup", new Dictionary { ["query"] = "weather" })); + var agent = new ToolApprovalAgent( + CreateMockAgent(new AgentResponse([new ChatMessage(ChatRole.Assistant, [first, repeated])])).Object); + + // Act & Assert + await Assert.ThrowsAsync( + () => agent.RunAsync([new ChatMessage(ChatRole.User, "Go")], new ChatClientAgentSession())); + } + + /// + /// Verify that streaming batches are checked before any conflicting request is surfaced. + /// + [Fact] + public async Task RunStreamingAsync_DifferentCallsWithSameRequestId_ThrowsBeforeYieldAsync() + { + // Arrange + var harmless = new ToolApprovalRequestContent("shared-id", new FunctionCallContent("shared-call", "BenignLookup")); + var privileged = new ToolApprovalRequestContent("shared-id", new FunctionCallContent("shared-call", "RunPrivilegedShell")); + var innerAgent = CreateMockStreamingAgent( + [ + new AgentResponseUpdate(ChatRole.Assistant, new List { harmless }), + new AgentResponseUpdate(ChatRole.Assistant, new List { privileged }), + ]); + var agent = new ToolApprovalAgent(innerAgent.Object); + var yielded = new List(); + + // Act + var exception = await Assert.ThrowsAsync(async () => + { + await foreach (var update in agent.RunStreamingAsync( + [new ChatMessage(ChatRole.User, "Go")], + new ChatClientAgentSession())) + { + yielded.Add(update); + } + }); + + // Assert + Assert.Empty(yielded); + Assert.Contains("shared-id", exception.Message, StringComparison.Ordinal); + } + + /// + /// Verify that the final non-streaming turn at the auto-approval cap also rejects conflicting IDs. + /// + [Fact] + public async Task RunAsync_CappedResponseWithDifferentCallsUnderSameRequestId_ThrowsAsync() + { + // Arrange + var callCount = 0; + var innerAgent = new Mock(); + innerAgent + .Protected() + .Setup>("RunCoreAsync", + ItExpr.IsAny>(), + ItExpr.IsAny(), + ItExpr.IsAny(), + ItExpr.IsAny()) + .ReturnsAsync(() => ++callCount == 1 + ? new AgentResponse([new ChatMessage(ChatRole.Assistant, + [new ToolApprovalRequestContent("auto", new FunctionCallContent("auto-call", "AutoTool"))])]) + : new AgentResponse([new ChatMessage(ChatRole.Assistant, + [ + new ToolApprovalRequestContent("shared-id", new FunctionCallContent("shared-call", "BenignLookup")), + new ToolApprovalRequestContent("shared-id", new FunctionCallContent("shared-call", "RunPrivilegedShell")), + ])])); + var agent = new ToolApprovalAgent(innerAgent.Object, new ToolApprovalAgentOptions + { + AutoApprovalRules = [ToolApprovalAgent.AllToolsAutoApprovalRule], + MaxAutoApprovalIterations = 1, + }); + + // Act & Assert + await Assert.ThrowsAsync( + () => agent.RunAsync([new ChatMessage(ChatRole.User, "Go")], new ChatClientAgentSession())); + } + + /// + /// Verify that the final streaming turn at the auto-approval cap invalidates every ID repeated by a later update. + /// + [Fact] + public async Task RunStreamingAsync_CappedUpdatesWithMultipleDuplicateIds_InvalidatesAllAsync() + { + // Arrange + var callCount = 0; + var firstA = new ToolApprovalRequestContent("id-a", new FunctionCallContent("call-a", "ToolA")); + var firstB = new ToolApprovalRequestContent("id-b", new FunctionCallContent("call-b", "ToolB")); + var innerAgent = new Mock(); + innerAgent + .Protected() + .Setup>("RunCoreStreamingAsync", + ItExpr.IsAny>(), + ItExpr.IsAny(), + ItExpr.IsAny(), + ItExpr.IsAny()) + .Returns(() => ++callCount == 1 + ? ToAsyncEnumerableAsync( + [ + new AgentResponseUpdate(ChatRole.Assistant, new List + { + new ToolApprovalRequestContent("auto", new FunctionCallContent("auto-call", "AutoTool")), + }), + ]) + : ToAsyncEnumerableAsync( + [ + new AgentResponseUpdate(ChatRole.Assistant, new List + { + firstA, + firstB, + }), + new AgentResponseUpdate(ChatRole.Assistant, new List + { + new ToolApprovalRequestContent("id-a", new FunctionCallContent("repeated-call-a", "DifferentToolA")), + new ToolApprovalRequestContent("id-b", new FunctionCallContent("repeated-call-b", "DifferentToolB")), + }), + ])); + var agent = new ToolApprovalAgent(innerAgent.Object, new ToolApprovalAgentOptions + { + AutoApprovalRules = [ToolApprovalAgent.AllToolsAutoApprovalRule], + MaxAutoApprovalIterations = 1, + }); + var session = new ChatClientAgentSession(); + + // Act + var exception = await Assert.ThrowsAsync(async () => + { + await foreach (var _ in agent.RunStreamingAsync( + [new ChatMessage(ChatRole.User, "Go")], + session)) + { + } + }); + + var nextA = new ToolApprovalRequestContent("next-a", new FunctionCallContent("next-call-a", "ToolA")); + var nextB = new ToolApprovalRequestContent("next-b", new FunctionCallContent("next-call-b", "ToolB")); + var followUpAgent = new ToolApprovalAgent( + CreateMockAgent(new AgentResponse([new ChatMessage(ChatRole.Assistant, [nextA, nextB])])).Object); + + var firstResponse = await followUpAgent.RunAsync( + [new ChatMessage(ChatRole.User, + [ + firstA.CreateAlwaysApproveToolResponse(), + firstB.CreateAlwaysApproveToolResponse(), + ])], + session); + + var secondResponse = await followUpAgent.RunAsync( + [new ChatMessage(ChatRole.User, [nextA.CreateResponse(approved: true)])], + session); + + // Assert + Assert.Contains("id-a", exception.Message, StringComparison.Ordinal); + Assert.Contains("id-b", exception.Message, StringComparison.Ordinal); + Assert.Equal("next-a", firstResponse.Messages.SelectMany(m => m.Contents).OfType().Single().RequestId); + Assert.Equal("next-b", secondResponse.Messages.SelectMany(m => m.Contents).OfType().Single().RequestId); + } + + #endregion + #region Auto-approval iteration cap /// diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.Mcp.UnitTests/DefaultMcpToolHandlerTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.Mcp.UnitTests/DefaultMcpToolHandlerTests.cs index 610f7393eda..aa1fb0440aa 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.Mcp.UnitTests/DefaultMcpToolHandlerTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.Mcp.UnitTests/DefaultMcpToolHandlerTests.cs @@ -90,6 +90,59 @@ public async Task DisposeAsync_WhenCalledMultipleTimes_ShouldHandleGracefullyAsy #region HttpClientProvider Tests + [Theory] + [InlineData("\r", false, false)] + [InlineData("\n", false, false)] + [InlineData("\0", false, false)] + [InlineData("\r", true, false)] + [InlineData("\n", true, false)] + [InlineData("\0", true, false)] + [InlineData("\r", false, true)] + [InlineData("\n", false, true)] + [InlineData("\0", false, true)] + [InlineData("\r", true, true)] + [InlineData("\n", true, true)] + [InlineData("\0", true, true)] + public async Task InvokeToolAsync_WithInvalidHeader_ShouldRejectBeforeClientCreationAsync( + string invalidCharacter, + bool invalidName, + bool useProvider) + { + // Arrange + bool clientCreationAttempted = false; + Task ProviderAsync(string url, CancellationToken ct) + { + clientCreationAttempted = true; + throw new InvalidOperationException("Client creation should not be reached."); + } + + HttpMessageHandler CreateHandler() + { + clientCreationAttempted = true; + throw new InvalidOperationException("Client creation should not be reached."); + } + + await using DefaultMcpToolHandler handler = new(useProvider ? ProviderAsync : null, CreateHandler); + Dictionary headers = new() + { + [invalidName ? $"X-Test{invalidCharacter}" : "X-Test"] = invalidName ? "value" : $"value{invalidCharacter}" + }; + + // Act + async Task actAsync() => await handler.InvokeToolAsync( + serverUrl: "https://example.com/mcp", + serverLabel: null, + toolName: "testTool", + arguments: null, + headers: headers, + connectionName: null); + + // Assert + ArgumentException exception = await Assert.ThrowsAsync(actAsync); + Assert.Equal("headers", exception.ParamName); + Assert.False(clientCreationAttempted); + } + [Fact] public async Task InvokeToolAsync_WithHttpClientProvider_ShouldCallProviderAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/DeclarativeWorkflowTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/DeclarativeWorkflowTest.cs index 1f702d52858..f9789c7f49d 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/DeclarativeWorkflowTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/DeclarativeWorkflowTest.cs @@ -158,19 +158,10 @@ public async Task Build_OnlyInitializesAllowedReferencedEnvironmentVariablesAsyn id: env_boundary_workflow actions: - - kind: ConditionGroup - id: environment_boundary_condition - conditions: - - id: environment_boundary_passed - condition: =Env.AllowedConfig = "allowed-value" - actions: - - kind: SendActivity - id: environment_boundary_passed_activity - activity: allowed-configuration-available - elseActions: - - kind: SendActivity - id: environment_boundary_failed_activity - activity: allowed-configuration-missing + - kind: SetVariable + id: referenced_allowed_configuration + variable: Local.Allowed + value: =Env.AllowedConfig - kind: SetVariable id: referenced_hidden_configuration @@ -212,8 +203,7 @@ public async Task Build_OnlyInitializesAllowedReferencedEnvironmentVariablesAsyn Assert.Equal("allowed-value", allowedValue.Value); Assert.IsType(rootState.Get(HiddenName, VariableScopeNames.Environment)); Assert.IsType(rootState.Get(ProcessOnlyName, VariableScopeNames.Environment)); - this.AssertMessage("allowed-configuration-available"); - this.AssertNotMessage("allowed-configuration-missing"); + Assert.Equal(SensitivityLevel.Sensitive, rootState.GetSensitivity(AllowedName, VariableScopeNames.Environment)); } finally { @@ -257,19 +247,15 @@ public async Task Build_WithProcessEnvironmentFallback_LoadsAllowedMissingConfig id: env_fallback_workflow actions: - - kind: ConditionGroup - id: environment_fallback_condition - conditions: - - id: environment_fallback_passed - condition: =Env.ProcessOnlyConfigForFallback = "process-only-value" && Env.ExplicitConfigWinsForFallback = "configuration-value" - actions: - - kind: SendActivity - id: environment_fallback_passed_activity - activity: process-environment-fallback-enabled - elseActions: - - kind: SendActivity - id: environment_fallback_failed_activity - activity: process-environment-fallback-failed + - kind: SetVariable + id: referenced_process_configuration + variable: Local.ProcessOnly + value: =Env.ProcessOnlyConfigForFallback + + - kind: SetVariable + id: referenced_explicit_configuration + variable: Local.Explicit + value: =Env.ExplicitConfigWinsForFallback - kind: SetVariable id: referenced_hidden_process_environment @@ -307,8 +293,8 @@ public async Task Build_WithProcessEnvironmentFallback_LoadsAllowedMissingConfig StringValue explicitValue = Assert.IsType(rootState.Get(ExplicitName, VariableScopeNames.Environment)); Assert.Equal(ExplicitConfigurationValue, explicitValue.Value); Assert.IsType(rootState.Get(HiddenName, VariableScopeNames.Environment)); - this.AssertMessage("process-environment-fallback-enabled"); - this.AssertNotMessage("process-environment-fallback-failed"); + Assert.Equal(SensitivityLevel.Sensitive, rootState.GetSensitivity(ProcessOnlyName, VariableScopeNames.Environment)); + Assert.Equal(SensitivityLevel.Sensitive, rootState.GetSensitivity(ExplicitName, VariableScopeNames.Environment)); } finally { @@ -318,6 +304,57 @@ public async Task Build_WithProcessEnvironmentFallback_LoadsAllowedMissingConfig } } + [Theory] + [InlineData("enabled")] + [InlineData("disabled")] + public async Task ConditionRejectsEnvironmentInputBeforeBranchActionsAsync(string setting) + { + // Arrange + using StringReader reader = new( + """ + kind: Workflow + trigger: + kind: OnConversationStart + id: condition_validation + actions: + - kind: ConditionGroup + id: select_branch + conditions: + - id: enabled_branch + condition: =Left(Env.Setting, 2) = "en" + actions: + - kind: SendActivity + id: enabled_activity + activity: Enabled + elseActions: + - kind: SendActivity + id: disabled_activity + activity: Disabled + """); + IConfiguration configuration = new ConfigurationBuilder() + .AddInMemoryCollection(new Dictionary { ["Setting"] = setting }) + .Build(); + DeclarativeWorkflowOptions options = new(CreateMockProvider("input").Object) + { + Configuration = configuration, + AllowedEnvironmentVariables = ["Setting"], + }; + Workflow workflow = DeclarativeWorkflowBuilder.Build(reader, options); + + // Act + await using StreamingRun run = await InProcessExecution.RunStreamingAsync(workflow, "input"); + WorkflowEvent[] events = await run.WatchStreamAsync().ToArrayAsync(); + + // Assert + ExecutorFailedEvent failure = Assert.Single(events.OfType()); + DeclarativeActionException exception = Assert.IsType(failure.Data); + Assert.Contains("condition", exception.Message); + Assert.Empty(events.OfType()); + Assert.DoesNotContain(events.OfType(), + e => string.Equals(e.ActionId, "enabled_activity", StringComparison.Ordinal) || + string.Equals(e.ActionId, "disabled_activity", StringComparison.Ordinal)); + } + [Fact] public async Task GotoActionAsync() { @@ -565,9 +602,6 @@ private void AssertExecuted(string executorId, bool isAction = true, bool isDisc private void AssertMessage(string message) => Assert.Contains(this.WorkflowEvents.OfType(), e => string.Equals(e.Message.Trim(), message, StringComparison.Ordinal)); - private void AssertNotMessage(string message) => - Assert.DoesNotContain(this.WorkflowEvents.OfType(), e => string.Equals(e.Message.Trim(), message, StringComparison.Ordinal)); - private static WorkflowFormulaState GetRootState(Workflow workflow) { ExecutorBinding rootBinding = workflow.ReflectExecutors()[workflow.StartExecutorId]; diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Kit/RootExecutorTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Kit/RootExecutorTests.cs index 4fedeb6d0f5..a7c26cac9d5 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Kit/RootExecutorTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Kit/RootExecutorTests.cs @@ -1,19 +1,378 @@ // Copyright (c) Microsoft. All rights reserved. +using System; using System.Collections.Generic; using System.Threading; using System.Threading.Tasks; +using Microsoft.Agents.AI.Workflows.Declarative.Extensions; using Microsoft.Agents.AI.Workflows.Declarative.Interpreter; using Microsoft.Agents.AI.Workflows.Declarative.Kit; using Microsoft.Agents.AI.Workflows.Declarative.PowerFx; using Microsoft.Agents.ObjectModel; +using Microsoft.Agents.ObjectModel.Abstractions; +using Microsoft.Extensions.AI; using Microsoft.Extensions.Configuration; +using Microsoft.PowerFx.Types; using Moq; namespace Microsoft.Agents.AI.Workflows.Declarative.UnitTests.Kit; public sealed class RootExecutorTests { + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task RestoreCheckpointAsync_ReloadsFormulaSessionOnEveryLoadAsync(bool offThread) + { + // Arrange + MockAgentProvider provider = new(); + IConfiguration configuration = new ConfigurationBuilder() + .AddInMemoryCollection(new Dictionary { ["SETTING"] = "configured" }) + .Build(); + TestRootExecutor executor = new(new(provider.Object) + { + Configuration = configuration, + AllowedEnvironmentVariables = ["SETTING"], + }) + { + AssignedValue = "root-value", + EnvironmentVariables = ["SETTING"], + SkipBaseCheckpointRestore = true, + }; + WriteValueExecutor writer = new(executor.Session, skipBaseCheckpointRestore: true) { ChangeConversation = true }; + ReadValueExecutor reader = new(executor.Session) { SkipBaseCheckpointRestore = true }; + Workflow workflow = new WorkflowBuilder(executor).AddEdge(executor, writer).AddEdge(writer, reader).Build(); + CheckpointManager checkpoints = CheckpointManager.CreateInMemory(); + var environment = (offThread ? InProcessExecution.OffThread : InProcessExecution.Lockstep).WithCheckpointing(checkpoints); + List savedCheckpoints = []; + await using (StreamingRun run = await environment.RunStreamingAsync(workflow, "first")) + { + await foreach (WorkflowEvent evt in run.WatchStreamAsync()) + { + if (evt is SuperStepCompletedEvent { CompletionInfo.Checkpoint: { } checkpoint }) + { + savedCheckpoints.Add(checkpoint); + } + } + } + Assert.True(savedCheckpoints.Count >= 3); + string initialConversation = Assert.Single(provider.ExistingConversationIds); + + await using StreamingRun resumed = await environment.ResumeStreamingAsync(workflow, savedCheckpoints[0]); + await foreach (WorkflowEvent _ in resumed.WatchStreamAsync()) + { + // Let the writer replace the checkpointed value before restoring again. + } + WorkflowFormulaState state = executor.Session.State; + Assert.Equal("action-value", reader.Value); + Assert.Equal(SensitivityLevel.Sensitive, reader.Sensitivity); + Assert.Equal("action-conversation", Assert.IsType(state.Get(SystemScope.Names.ConversationId, VariableScopeNames.System)).Value); + state.Set("SETTING", FormulaValue.New("changed"), VariableScopeNames.Environment, SensitivityLevel.None); + state.Set("LaterValue", FormulaValue.New("later"), VariableScopeNames.Global, SensitivityLevel.Sensitive); + state.Bind(); + + // Act + await resumed.RestoreCheckpointAsync(savedCheckpoints[0]); + + // Assert + Assert.Equal("root-value", executor.RestoredValue); + Assert.Equal("root-value", reader.RestoredValue); + Assert.Equal("root-value", Assert.IsType(state.Get("TestValue", VariableScopeNames.Local)).Value); + Assert.Equal(SensitivityLevel.None, state.GetSensitivity("TestValue", VariableScopeNames.Local)); + Assert.Equal("configured", Assert.IsType(state.Get("SETTING", VariableScopeNames.Environment)).Value); + Assert.Equal(SensitivityLevel.Sensitive, state.GetSensitivity("SETTING", VariableScopeNames.Environment)); + Assert.IsType(state.Get("LaterValue", VariableScopeNames.Global)); + Assert.Equal(SensitivityLevel.None, state.GetSensitivity("LaterValue", VariableScopeNames.Global)); + Assert.Equal(initialConversation, Assert.IsType(state.Get(SystemScope.Names.ConversationId, VariableScopeNames.System)).Value); + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task ResumeAsync_RestoresActionWrittenValuesAsync(bool skipBaseCheckpointRestore, bool reuseWorkflow) + { + // Arrange + DeclarativeWorkflowOptions options = new(new MockAgentProvider().Object); + TestRootExecutor executor = new(options) { AssignedValue = "root-value", SkipBaseCheckpointRestore = skipBaseCheckpointRestore }; + WriteValueExecutor writer = new(executor.Session, skipBaseCheckpointRestore); + ReadValueExecutor reader = new(executor.Session) { SkipBaseCheckpointRestore = skipBaseCheckpointRestore }; + Workflow workflow = new WorkflowBuilder(executor).AddEdge(executor, writer).AddEdge(writer, reader).Build(); + CheckpointManager checkpoints = CheckpointManager.CreateInMemory(); + List savedCheckpoints = []; + await using (StreamingRun run = await InProcessExecution.RunStreamingAsync(workflow, "first", checkpoints)) + { + await foreach (WorkflowEvent evt in run.WatchStreamAsync()) + { + if (evt is SuperStepCompletedEvent { CompletionInfo.Checkpoint: { } checkpoint }) + { + savedCheckpoints.Add(checkpoint); + } + } + } + Assert.True(savedCheckpoints.Count >= 3); + Assert.Equal("action-value", reader.Value); + Assert.Equal(SensitivityLevel.Sensitive, reader.Sensitivity); + + if (!reuseWorkflow) + { + executor = new(options) { SkipBaseCheckpointRestore = skipBaseCheckpointRestore }; + writer = new(executor.Session, skipBaseCheckpointRestore); + reader = new(executor.Session) { SkipBaseCheckpointRestore = skipBaseCheckpointRestore }; + workflow = new WorkflowBuilder(executor).AddEdge(executor, writer).AddEdge(writer, reader).Build(); + } + reader.Value = null; + + // Act + await using (StreamingRun run = await InProcessExecution.ResumeStreamingAsync(workflow, savedCheckpoints[^2], checkpoints)) + { + await foreach (WorkflowEvent _ in run.WatchStreamAsync()) + { + // Consume the resumed run before checking the downstream action. + } + } + + // Assert + Assert.Equal("action-value", executor.RestoredValue); + Assert.Equal("action-value", reader.RestoredValue); + Assert.Equal("action-value", reader.Value); + Assert.Equal(SensitivityLevel.Sensitive, reader.Sensitivity); + } + + [Theory] + [InlineData(true, true)] + [InlineData(false, true)] + [InlineData(false, false)] + public async Task ResumeAsync_RestoresAllowlistedEnvironmentValuesAsync(bool reuseWorkflow, bool allowEnvironmentOnResume) + { + // Arrange + IConfiguration configuration = new ConfigurationBuilder() + .AddInMemoryCollection(new Dictionary { ["SETTING"] = "configured" }) + .Build(); + DeclarativeWorkflowOptions options = new(new MockAgentProvider().Object) + { + Configuration = configuration, + AllowedEnvironmentVariables = ["SETTING"], + }; + TestRootExecutor executor = new(options) { AssignedValue = "assigned", EnvironmentVariables = ["SETTING"] }; + ReadValueExecutor reader = new(executor.Session) { Expression = "Env.SETTING" }; + Workflow workflow = new WorkflowBuilder(executor).AddEdge(executor, reader).Build(); + CheckpointManager checkpoints = CheckpointManager.CreateInMemory(); + List savedCheckpoints = []; + await using (StreamingRun run = await InProcessExecution.RunStreamingAsync(workflow, "first", checkpoints)) + { + await foreach (WorkflowEvent evt in run.WatchStreamAsync()) + { + if (evt is SuperStepCompletedEvent { CompletionInfo.Checkpoint: { } checkpoint }) + { + savedCheckpoints.Add(checkpoint); + } + } + } + Assert.True(savedCheckpoints.Count >= 2); + Assert.Equal("configured", reader.Value); + Assert.Equal(SensitivityLevel.Sensitive, reader.Sensitivity); + + if (!reuseWorkflow) + { + options = new(options.AgentProvider) + { + Configuration = configuration, + AllowedEnvironmentVariables = allowEnvironmentOnResume ? ["SETTING"] : ["OTHER_SETTING"], + }; + executor = new(options); + reader = new(executor.Session) { Expression = allowEnvironmentOnResume ? "Env.SETTING" : "Local.TestValue" }; + workflow = new WorkflowBuilder(executor).AddEdge(executor, reader).Build(); + } + reader.Value = null; + + // Act + await using (StreamingRun run = await InProcessExecution.ResumeStreamingAsync(workflow, savedCheckpoints[^2], checkpoints)) + { + await foreach (WorkflowEvent _ in run.WatchStreamAsync()) + { + // Consume the resumed run to completion before inspecting its state. + } + + // Assert + Assert.Equal(allowEnvironmentOnResume ? "configured" : "assigned", reader.Value); + Assert.Equal(allowEnvironmentOnResume ? SensitivityLevel.Sensitive : SensitivityLevel.None, reader.Sensitivity); + if (!allowEnvironmentOnResume) + { + Assert.IsType(executor.Session.State.Get("SETTING", VariableScopeNames.Environment)); + Assert.Equal(SensitivityLevel.None, executor.Session.State.GetSensitivity("SETTING", VariableScopeNames.Environment)); + } + } + } + + [Fact] + public async Task HandleAsync_RetryAfterStateWriteFailureReusesCreatedConversationAsync() + { + // Arrange + MockAgentProvider provider = new(); + TestRootExecutor executor = new(new(provider.Object)); + Mock context = new(); + context.SetupSequence(c => c.QueueStateUpdateAsync( + SystemScope.Names.Conversation, It.IsAny(), VariableScopeNames.System, It.IsAny())) + .Throws(new InvalidOperationException("State write failed.")) + .Returns(default(ValueTask)); + + // Act + await Assert.ThrowsAsync( + async () => await executor.HandleAsync("first", context.Object, CancellationToken.None)); + await executor.HandleAsync("first", context.Object, CancellationToken.None); + + // Assert + string conversationId = Assert.Single(provider.ExistingConversationIds); + provider.Verify(p => p.CreateMessageAsync(conversationId, It.IsAny(), It.IsAny()), Times.Once); + + // Act + await executor.ResetAsync(); + await executor.HandleAsync("second", new Mock().Object, CancellationToken.None); + + // Assert + Assert.Equal(2, provider.ExistingConversationIds.Count); + Assert.NotEqual(conversationId, provider.ExistingConversationIds[1]); + } + + [Fact] + public async Task ResumeAsync_RestoresFormulaValuesAfterDisposalAsync() + { + // Arrange + TestRootExecutor executor = new(new(new MockAgentProvider().Object)) { AssignedValue = "assigned" }; + ReadValueExecutor reader = new(executor.Session); + Workflow workflow = new WorkflowBuilder(executor).AddEdge(executor, reader).Build(); + CheckpointManager checkpoints = CheckpointManager.CreateInMemory(); + List savedCheckpoints = []; + await using (StreamingRun run = await InProcessExecution.RunStreamingAsync(workflow, "first", checkpoints)) + { + await foreach (WorkflowEvent evt in run.WatchStreamAsync()) + { + if (evt is SuperStepCompletedEvent { CompletionInfo.Checkpoint: { } checkpoint }) + { + savedCheckpoints.Add(checkpoint); + } + } + } + Assert.True(savedCheckpoints.Count >= 2); + Assert.Equal("assigned", reader.Value); + reader.Value = null; + + // Act + await using (StreamingRun run = await InProcessExecution.ResumeStreamingAsync(workflow, savedCheckpoints[^2], checkpoints)) + { + await foreach (WorkflowEvent _ in run.WatchStreamAsync()) + { + // Consume the resumed run to completion before inspecting the result. + } + } + + // Assert + Assert.Equal("assigned", reader.Value); + } + + [Fact] + public async Task ResetAsync_RestoresNestedConversationIdAsync() + { + // Arrange + TestRootExecutor executor = new(new(new MockAgentProvider().Object)); + await executor.HandleAsync("first", new Mock().Object, CancellationToken.None); + RecordValue activeConversation = Assert.IsAssignableFrom( + executor.Session.State.Get(SystemScope.Names.Conversation, VariableScopeNames.System)); + Assert.IsType(activeConversation.GetField("Id")); + + // Act + await executor.ResetAsync(); + + // Assert + RecordValue initialConversation = Assert.IsAssignableFrom( + executor.Session.State.Get(SystemScope.Names.Conversation, VariableScopeNames.System)); + Assert.IsType(initialConversation.GetField("Id")); + Assert.IsType(executor.Session.State.Get(SystemScope.Names.ConversationId, VariableScopeNames.System)); + } + + [Fact] + public async Task HandleAsync_WithoutResetReusesConversationAsync() + { + // Arrange + MockAgentProvider provider = new(); + TestRootExecutor executor = new(new(provider.Object)); + IWorkflowContext context = new Mock().Object; + + // Act + await executor.HandleAsync("first", context, CancellationToken.None); + await executor.HandleAsync("second", context, CancellationToken.None); + + // Assert + string conversationId = Assert.Single(provider.ExistingConversationIds); + provider.Verify(p => p.CreateMessageAsync(conversationId, It.IsAny(), It.IsAny()), Times.Exactly(2)); + } + + [Theory] + [InlineData(null)] + [InlineData("configured-conversation")] + public async Task HandleAsync_ReusedWorkflowResolvesConversationPerRunAsync(string? conversationId) + { + // Arrange + MockAgentProvider provider = new(); + List messageConversations = []; + provider.Setup(p => p.CreateMessageAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns((id, message, _) => + { + messageConversations.Add(id); + return Task.FromResult(message); + }); + TestRootExecutor executor = new(new(provider.Object) { ConversationId = conversationId }); + Workflow workflow = new WorkflowBuilder(executor).Build(); + + // Act + await using (Run firstRun = await InProcessExecution.RunAsync(workflow, "first", sessionId: "first-session")) + { + } + await using (Run secondRun = await InProcessExecution.RunAsync(workflow, "second", sessionId: "second-session")) + { + } + + // Assert + Assert.Equal(2, messageConversations.Count); + if (conversationId is null) + { + Assert.NotEqual(messageConversations[0], messageConversations[1]); + provider.Verify(p => p.CreateConversationAsync(It.IsAny()), Times.Exactly(2)); + } + else + { + Assert.All(messageConversations, id => Assert.Equal(conversationId, id)); + provider.Verify(p => p.CreateConversationAsync(It.IsAny()), Times.Never); + } + } + + [Theory] + [InlineData(VariableScopeNames.Local)] + [InlineData(VariableScopeNames.Global)] + [InlineData(VariableScopeNames.Environment)] + [InlineData(VariableScopeNames.System)] + public async Task ResetAsync_RestoresInitialFormulaStateAsync(string scopeName) + { + // Arrange + TestRootExecutor executor = new(new(new MockAgentProvider().Object)); + WorkflowFormulaState state = executor.Session.State; + FormulaValue initialMessage = state.Get(SystemScope.Names.LastMessage, VariableScopeNames.System); + state.Set("RunValue", FormulaValue.New("value"), scopeName, SensitivityLevel.Sensitive); + state.Set(SystemScope.Names.LastMessage, FormulaValue.New("changed"), VariableScopeNames.System); + state.SetInitialized(); + + // Act + await executor.ResetAsync(); + + // Assert + Assert.IsType(state.Get("RunValue", scopeName)); + Assert.Equal(SensitivityLevel.None, state.GetSensitivity("RunValue", scopeName)); + Assert.Equal(initialMessage.ToObject(), state.Get(SystemScope.Names.LastMessage, VariableScopeNames.System).ToObject()); + Assert.True(state.SetInitialized()); + } + [Fact] public async Task InitializeEnvironmentAsync_OnlyQueuesAllowedVariablesAsync() { @@ -51,10 +410,91 @@ public async Task InitializeEnvironmentAsync_OnlyQueuesAllowedVariablesAsync() private sealed class TestRootExecutor(DeclarativeWorkflowOptions options) : RootExecutor("test_root", options, inputTransform: null) { + public string? AssignedValue { get; init; } + + public bool SkipBaseCheckpointRestore { get; init; } + + public string? RestoredValue { get; private set; } + + public string[] EnvironmentVariables { get; init; } = []; + public ValueTask InitializeAsync(IWorkflowContext context, params string[] variableNames) => this.InitializeEnvironmentAsync(context, variableNames); - protected override ValueTask ExecuteAsync(string message, IWorkflowContext context, CancellationToken cancellationToken = default) => - default; + protected override async ValueTask OnCheckpointRestoredAsync(IWorkflowContext context, CancellationToken cancellationToken = default) + { + if (!this.SkipBaseCheckpointRestore) + { + await base.OnCheckpointRestoredAsync(context, cancellationToken); + } + this.RestoredValue = this.Session.State.Get("TestValue", VariableScopeNames.Local).ToObject() as string; + } + + protected override async ValueTask ExecuteAsync(string message, IWorkflowContext context, CancellationToken cancellationToken = default) + { + await this.InitializeEnvironmentAsync(context, this.EnvironmentVariables); + if (this.AssignedValue is not null) + { + await context.QueueStateUpdateAsync("TestValue", this.AssignedValue, VariableScopeNames.Local, cancellationToken); + } + } + } + + private sealed class WriteValueExecutor(FormulaSession session, bool skipBaseCheckpointRestore) : ActionExecutor("write_value", session) + { + public bool ChangeConversation { get; init; } + + protected override ValueTask OnCheckpointRestoredAsync(IWorkflowContext context, CancellationToken cancellationToken = default) => + skipBaseCheckpointRestore ? default : base.OnCheckpointRestoredAsync(context, cancellationToken); + + protected override async ValueTask ExecuteAsync(IWorkflowContext context, CancellationToken cancellationToken = default) + { + await context.QueueStateUpdateWithSensitivityAsync( + "TestValue", new EvaluationResult("action-value", SensitivityLevel.Sensitive), VariableScopeNames.Local, cancellationToken); + if (this.ChangeConversation) + { + await context.QueueConversationUpdateAsync("action-conversation", isExternal: true, cancellationToken); + } + return null; + } + } + + private sealed class ReadValueExecutor : ActionExecutor + { + private readonly FormulaSession _session; + + public ReadValueExecutor(FormulaSession session) : base("read_value", session) + { + this._session = session; + } + + public string? Value { get; set; } + + public bool SkipBaseCheckpointRestore { get; init; } + + public string? RestoredValue { get; private set; } + + public string Expression { get; init; } = "Local.TestValue"; + + public SensitivityLevel Sensitivity { get; private set; } + + protected override async ValueTask OnCheckpointRestoredAsync(IWorkflowContext context, CancellationToken cancellationToken = default) + { + if (!this.SkipBaseCheckpointRestore) + { + await base.OnCheckpointRestoredAsync(context, cancellationToken); + } + EvaluationResult result = await new DeclarativeWorkflowContext(context, this._session.State) + .EvaluateValueWithSensitivityAsync("Local.TestValue", cancellationToken); + this.RestoredValue = result.Value; + } + + protected override async ValueTask ExecuteAsync(IWorkflowContext context, CancellationToken cancellationToken = default) + { + EvaluationResult result = await context.EvaluateValueWithSensitivityAsync(this.Expression, cancellationToken); + this.Value = result.Value; + this.Sensitivity = result.Sensitivity; + return this.Value; + } } } diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests.csproj b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests.csproj index 470a7fca49b..3057430a034 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests.csproj +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests.csproj @@ -18,6 +18,9 @@ + + + Always diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ClearAllVariablesExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ClearAllVariablesExecutorTest.cs index cc18bcb463c..aa7b30bce9b 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ClearAllVariablesExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ClearAllVariablesExecutorTest.cs @@ -53,6 +53,27 @@ await this.ExecuteTestAsync( expectedValue: FormulaValue.New("Old value")); } + [Fact] + public async Task ClearVariablesRejectsSensitiveScopeAsync() + { + // Arrange + this.State.Set("Control", FormulaValue.New(true), sensitivity: SensitivityLevel.Sensitive); + this.State.Set("LocalVar", FormulaValue.New("existing")); + ClearAllVariables.Builder builder = this.CreateModel( + nameof(ClearVariablesRejectsSensitiveScopeAsync), VariablesToClear.AllGlobalVariables).ToBuilder(); + builder.Variables = EnumExpression.Expression( + """If(Local.Control, "AllGlobalVariables", "ConversationScopedVariables")"""); + ClearAllVariablesExecutor action = new(AssignParent(builder), this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains("variable scope", exception.Message); + this.VerifyState("LocalVar", FormulaValue.New("existing")); + } + [Fact] public async Task ClearWorkflowHistoryAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ConditionGroupExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ConditionGroupExecutorTest.cs index 910af1ca640..ab1f377bb7e 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ConditionGroupExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ConditionGroupExecutorTest.cs @@ -4,6 +4,7 @@ using Microsoft.Agents.AI.Workflows.Declarative.Kit; using Microsoft.Agents.AI.Workflows.Declarative.ObjectModel; using Microsoft.Agents.ObjectModel; +using Microsoft.PowerFx.Types; namespace Microsoft.Agents.AI.Workflows.Declarative.UnitTests.ObjectModel; @@ -102,6 +103,79 @@ public async Task ConditionGroupDoneAsync() VerifyCompletionEvent(events); } + [Theory] + [InlineData(VariableScopeNames.Environment, "Env", true)] + [InlineData(VariableScopeNames.Environment, "Env", false)] + [InlineData(VariableScopeNames.Local, "Local", true)] + [InlineData(VariableScopeNames.Local, "Local", false)] + public async Task ConditionGroupRejectsSensitiveConditionAsync(string scope, string alias, bool matches) + { + // Arrange + this.State.Set("Setting", FormulaValue.New(matches ? "enabled" : "disabled"), scope, SensitivityLevel.Sensitive); + ConditionGroup.Builder builder = this.CreateModel( + nameof(ConditionGroupRejectsSensitiveConditionAsync), [true], includeElse: true).ToBuilder(); + builder.Conditions[0].Condition = BoolExpression.Expression($"Left({alias}.Setting, 2) = \"en\"").ToBuilder(); + ConditionGroupExecutor action = new(AssignParent(builder), this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action, isDiscrete: false); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains("condition", exception.Message); + Assert.DoesNotContain(matches ? "enabled" : "disabled", exception.Message); + } + + [Theory] + [InlineData(true, "If(Env.Setting, false)")] + [InlineData(false, "If(Env.Setting, false)")] + [InlineData(true, "If(Env.Setting, 1 / 0 = 0, false)")] + [InlineData(false, "If(Env.Setting, 1 / 0 = 0, false)")] + public async Task ConditionGroupValidatesConditionalResultsAsync(bool value, string expression) + { + // Arrange + this.State.Set("Setting", FormulaValue.New(value), VariableScopeNames.Environment, SensitivityLevel.Sensitive); + ConditionGroup.Builder builder = this.CreateModel( + nameof(ConditionGroupValidatesConditionalResultsAsync), [true], includeElse: true).ToBuilder(); + builder.Conditions[0].Condition = BoolExpression.Expression(expression).ToBuilder(); + ConditionGroupExecutor action = new(AssignParent(builder), this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action, isDiscrete: false); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains("condition", exception.Message); + Assert.DoesNotContain("ErrDivByZero", exception.Message); + } + + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task ConditionGroupAllowsNonSensitiveConditionAsync(bool matches) + { + // Arrange + this.State.Set("Setting", FormulaValue.New(matches ? "enabled" : "disabled")); + ConditionGroup.Builder builder = this.CreateModel( + nameof(ConditionGroupAllowsNonSensitiveConditionAsync), [true], includeElse: true).ToBuilder(); + builder.Conditions[0].Condition = BoolExpression.Expression("Left(Local.Setting, 2) = \"en\"").ToBuilder(); + ConditionGroup model = AssignParent(builder); + ConditionGroupExecutor action = new(model, this.State); + string? selectedStep = null; + + // Act + await this.ExecuteAsync(action, "capture_condition", (context, message, cancellationToken) => + { + selectedStep = Assert.IsType(message.Result); + return default; + }); + + // Assert + Assert.Equal( + matches ? ConditionGroupExecutor.Steps.Item(model, model.Conditions[0]) : ConditionGroupExecutor.Steps.Else(model), + selectedStep); + } + [Fact] public void ConditionGroupIsMatchTrue() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ForeachExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ForeachExecutorTest.cs index b3b16f149b6..7ee7caf768e 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ForeachExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/ForeachExecutorTest.cs @@ -6,7 +6,9 @@ using System.Reflection; using System.Threading; using System.Threading.Tasks; +using Microsoft.Agents.AI.Workflows.Declarative.Kit; using Microsoft.Agents.AI.Workflows.Declarative.ObjectModel; +using Microsoft.Agents.AI.Workflows.Declarative.PowerFx; using Microsoft.Agents.ObjectModel; using Microsoft.PowerFx.Types; @@ -142,6 +144,25 @@ await this.TakeNextTestAsync( indexName: "CurrentIndex"); } + [Fact] + public async Task ForeachRejectsSensitiveItemsAsync() + { + // Arrange + this.State.Set("Control", FormulaValue.New(true), sensitivity: SensitivityLevel.Sensitive); + Foreach model = this.CreateModel( + nameof(ForeachRejectsSensitiveItemsAsync), + ValueExpression.Expression("If(Local.Control, [1, 2], [1])"), + "CurrentValue", indexName: null); + ForeachExecutor action = new(model, this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action, isDiscrete: false); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains("loop items", exception.Message); + } + [Fact] public async Task ForeachTakeNextWithMultiFieldRecordAsync() { @@ -349,6 +370,82 @@ public async Task ForeachStateRestoredAcrossCheckpointAsync() Assert.False(instanceB.HasValue, "Restored instance should report HasValue == false after exhausting all items."); } + [Fact] + public async Task ForeachRejectsSensitiveCheckpointItemsAsync() + { + // Arrange + Foreach model = this.CreateModel( + nameof(ForeachRejectsSensitiveCheckpointItemsAsync), ValueExpression.Literal(DataValue.EmptyTable), + "CurrentValue", indexName: null); + ForeachExecutor action = new(model, this.State); + InMemoryWorkflowContext checkpoint = new(); + await checkpoint.QueueStateUpdateAsync("_values", new PortableValue[] { new(1) }); + await checkpoint.QueueStateUpdateAsync("_sensitivity", SensitivityLevel.Sensitive); + await checkpoint.QueueStateUpdateAsync("_index", 1); + await checkpoint.QueueStateUpdateAsync("HasValue", true); + + // Act + Task RestoreAsync() => InvokeOnCheckpointRestoredAsync(action, checkpoint); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(RestoreAsync); + Assert.Contains("loop items", exception.Message); + Assert.False(action.HasValue); + } + + [Theory] + [InlineData(typeof(Test.WorkflowProviders.WorkflowProvider.ForeachLoopExecutor))] + [InlineData(typeof(Test.WorkflowProviders.LoopBreak.WorkflowProvider.ForeachLoopExecutor))] + [InlineData(typeof(Test.WorkflowProviders.LoopContinue.WorkflowProvider.ForeachLoopExecutor))] + public async Task GeneratedLoopRejectsSensitiveCheckpointItemsAsync(Type executorType) + { + // Arrange + Executor action = CreateGeneratedLoopExecutor(executorType, new TestFormulaSession(this.State)); + InMemoryWorkflowContext checkpoint = new(); + await checkpoint.QueueStateUpdateAsync("_values", new PortableValue[] { new("item") }); + await checkpoint.QueueStateUpdateAsync("_sensitivity", SensitivityLevel.Sensitive); + await checkpoint.QueueStateUpdateAsync("_index", 0); + await checkpoint.QueueStateUpdateAsync("HasValue", true); + + // Act + Task RestoreAsync() => InvokeOnCheckpointRestoredAsync(action, checkpoint); + + // Assert + await Assert.ThrowsAsync(RestoreAsync); + Assert.False(GetGeneratedLoopHasValue(action)); + } + + [Theory] + [InlineData(typeof(Test.WorkflowProviders.WorkflowProvider.ForeachLoopExecutor))] + [InlineData(typeof(Test.WorkflowProviders.LoopBreak.WorkflowProvider.ForeachLoopExecutor))] + [InlineData(typeof(Test.WorkflowProviders.LoopContinue.WorkflowProvider.ForeachLoopExecutor))] + public async Task GeneratedLoopPreservesIterationAcrossRestoreAsync(Type executorType) + { + // Arrange + TestFormulaSession session = new(this.State); + InMemoryWorkflowContext context = new(); + await context.QueueStateUpdateAsync("_values", new PortableValue[] { new("a"), new("b") }); + await context.QueueStateUpdateAsync("_sensitivity", SensitivityLevel.None); + await context.QueueStateUpdateAsync("_index", 1); + await context.QueueStateUpdateAsync("HasValue", true); + Executor restored = CreateGeneratedLoopExecutor(executorType, session); + + // Act + await InvokeOnCheckpointRestoredAsync(restored, context); + MethodInfo? takeNext = executorType.GetMethod("TakeNextAsync"); + Assert.NotNull(takeNext); + await Assert.IsType(takeNext.Invoke(restored, [context, null, CancellationToken.None])); + + // Assert + Assert.True(GetGeneratedLoopHasValue(restored)); + Assert.Equal(1, await context.ReadStateAsync("LoopIndex", VariableScopeNames.Local)); + Assert.Equal(SensitivityLevel.None, await context.ReadStateAsync( + "LoopValue", WorkflowFormulaState.GetSensitivityScopeName(VariableScopeNames.Local))); + Assert.Contains("LoopValue", await context.ReadStateKeysAsync( + WorkflowFormulaState.GetSensitivityScopeName(VariableScopeNames.Local))); + Assert.Equal("b", await context.ReadStateAsync("LoopValue", VariableScopeNames.Local)); + } + /// /// When no checkpoint state has been written for the executor (e.g. first run), the restore /// hook must be a no-op and leave constructor defaults in place. @@ -553,6 +650,23 @@ private static async Task InvokeProtectedCheckpointHookAsync(Executor executor, await invocation; } + private static Executor CreateGeneratedLoopExecutor(Type executorType, FormulaSession session) => + Assert.IsAssignableFrom(Activator.CreateInstance( + executorType, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, + binder: null, args: [session], culture: null)); + + private static bool GetGeneratedLoopHasValue(Executor executor) + { + System.Reflection.PropertyInfo? hasValue = executor.GetType().GetProperty(nameof(ForeachExecutor.HasValue)); + Assert.NotNull(hasValue); + return Assert.IsType(hasValue.GetValue(executor)); + } + + private sealed class TestFormulaSession(WorkflowFormulaState state) : FormulaSession + { + internal override WorkflowFormulaState State => state; + } + /// /// Minimal in-memory implementation used to drive the /// checkpoint/restore overrides on directly from a unit test. diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/HttpRequestExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/HttpRequestExecutorTest.cs index b823d4652d4..fd76c99ed04 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/HttpRequestExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/HttpRequestExecutorTest.cs @@ -442,6 +442,27 @@ public async Task HttpRequestWithProtectedEnvironmentValueThrowsAsync(RequestVal handler.VerifyNotSent(); } + [Fact] + public async Task HttpRequestRejectsSensitiveTimeoutAsync() + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Timeout", FormulaValue.New(1500), sensitivity: SensitivityLevel.Sensitive); + HttpRequestAction.Builder builder = this.CreateModel( + nameof(HttpRequestRejectsSensitiveTimeoutAsync), TestUrl, HttpMethodType.Get).ToBuilder(); + builder.RequestTimeoutInMilliseconds = IntExpression.Expression("Local.Timeout").ToBuilder(); + MockHttpRequestHandler handler = new(HttpRequestResult("{}")); + HttpRequestExecutor action = new(AssignParent(builder), handler.Object, this._agentProvider.Object, this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains("timeout", exception.Message); + handler.VerifyNotSent(); + } + [Fact] public async Task HttpRequestAddsResponseToConversationAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeAzureAgentExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeAzureAgentExecutorTest.cs index dd19ab3106e..b2cd31d9ac3 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeAzureAgentExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeAzureAgentExecutorTest.cs @@ -50,6 +50,51 @@ public async Task AutoSendDefaultsToTrueAndHonorsExplicitValueAsync(bool? autoSe #region Input argument binding + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task AgentRejectsSensitiveAutoSendAsync(bool value) + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Control", FormulaValue.New(value), sensitivity: SensitivityLevel.Sensitive); + CapturingAgentProvider provider = new("response"); + InvokeAzureAgent.Builder builder = this.CreateAutoSendModel(nameof(AgentRejectsSensitiveAutoSendAsync), true).ToBuilder(); + Assert.NotNull(builder.Output); + builder.Output.AutoSend = BoolExpression.Expression("Local.Control").ToBuilder(); + InvokeAzureAgentExecutor action = new(AssignParent(builder), provider, this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action, isDiscrete: false); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains("auto send", exception.Message); + Assert.Equal(0, provider.InvocationCount); + } + + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task AgentRejectsSensitiveExternalLoopConditionAsync(bool value) + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Control", FormulaValue.New(value), sensitivity: SensitivityLevel.Sensitive); + CapturingAgentProvider provider = new("response"); + InvokeAzureAgent model = this.CreateModel( + nameof(AgentRejectsSensitiveExternalLoopConditionAsync), "Brain", + externalLoopWhen: "Local.Control"); + InvokeAzureAgentExecutor action = new(model, provider, this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action, isDiscrete: false); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains("external loop condition", exception.Message); + } + [Fact] public async Task MultipleNamedArgumentsAreAllBoundAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeFunctionToolExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeFunctionToolExecutorTest.cs index a5153e5bb8c..2f511304510 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeFunctionToolExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeFunctionToolExecutorTest.cs @@ -3,12 +3,15 @@ using System; using System.Collections.Concurrent; using System.Collections.Generic; +using System.IO; using System.Linq; using System.Reflection; using System.Text.Json; using System.Threading; using System.Threading.Tasks; +using Microsoft.Agents.AI.Workflows.Checkpointing; using Microsoft.Agents.AI.Workflows.Declarative.Events; +using Microsoft.Agents.AI.Workflows.Declarative.Interpreter; using Microsoft.Agents.AI.Workflows.Declarative.Kit; using Microsoft.Agents.AI.Workflows.Declarative.ObjectModel; using Microsoft.Agents.AI.Workflows.Declarative.PowerFx; @@ -16,6 +19,7 @@ using Microsoft.Extensions.AI; using Microsoft.PowerFx.Types; using Moq; +using Xunit.Sdk; using ApprovalSnapshot = Microsoft.Agents.AI.Workflows.Declarative.ObjectModel.InvokeFunctionToolExecutor.ApprovalSnapshot; namespace Microsoft.Agents.AI.Workflows.Declarative.UnitTests.ObjectModel; @@ -94,6 +98,103 @@ public async Task InvokeFunctionToolExecuteWithRequireApprovalAsync() await this.ExecuteTestAsync(model); } + [Theory] + [InlineData(null, true)] + [InlineData(null, false)] + [InlineData(false, true)] + [InlineData(false, false)] + [InlineData(true, true)] + [InlineData(true, false)] + [InlineData(null, true, true)] + [InlineData(null, false, true)] + public async Task InvokeFunctionToolHonorsRegisteredFunctionApprovalAsync( + bool? requireApproval, bool approved, bool wrapFunction = false) + { + // Arrange + const string FunctionName = "get_status"; + int invocationCount = 0; + AIFunction function = new ApprovalRequiredAIFunction( + AIFunctionFactory.Create(() => + { + invocationCount++; + return "ready"; + }, name: FunctionName)); + TestFunctionAgentProvider agentProvider = wrapFunction + ? new([function]) + : new([]) { Functions = [function] }; + this.State.InitializeSystem(); + InvokeFunctionTool model = this.CreateModel( + displayName: nameof(InvokeFunctionToolHonorsRegisteredFunctionApprovalAsync), + functionName: FunctionName, + requireApproval: requireApproval, + outputResultVariable: "Result"); + InvokeFunctionToolExecutor action = new(model, agentProvider, this.State); + List emittedRequests = []; + Mock mockContext = CreateMockWorkflowContext(emittedRequests); + + // Act + await action.HandleAsync(new ActionExecutorResult(action.Id), mockContext.Object, CancellationToken.None); + + // Assert + ExternalInputRequest request = Assert.Single(emittedRequests); + ToolApprovalRequestContent approvalRequest = Assert.Single( + request.AgentResponse.Messages.SelectMany(message => message.Contents).OfType()); + Assert.Equal(FunctionName, Assert.IsType(approvalRequest.ToolCall).Name); + Assert.Equal(0, invocationCount); + + // Act + await action.CaptureResponseAsync( + mockContext.Object, + CreateApprovalResponseFor(emittedRequests, approved), + CancellationToken.None); + + // Assert + Assert.Equal(approved ? 1 : 0, invocationCount); + Assert.Contains(mockContext.Invocations, invocation => + invocation.Method.Name == nameof(IWorkflowContext.QueueStateUpdateAsync) + && invocation.Arguments[1] is StringValue value + && string.Equals( + value.Value, + approved ? "ready" : "Error: Function invocation was not approved by user.", + StringComparison.Ordinal)); + } + + [Theory] + [InlineData(null)] + [InlineData(false)] + [InlineData(true)] + public async Task InvokeFunctionToolUnmarkedRegisteredFunctionUsesNodeApprovalAsync(bool? requireApproval) + { + // Arrange + const string FunctionName = "get_status"; + TestFunctionAgentProvider agentProvider = new([]) + { + Functions = + [ + AIFunctionFactory.Create(() => "ready", name: FunctionName), + new ApprovalRequiredAIFunction(AIFunctionFactory.Create(() => "other", name: "other_function")), + ], + }; + this.State.InitializeSystem(); + InvokeFunctionTool model = this.CreateModel( + displayName: nameof(InvokeFunctionToolUnmarkedRegisteredFunctionUsesNodeApprovalAsync), + functionName: FunctionName, + requireApproval: requireApproval); + InvokeFunctionToolExecutor action = new(model, agentProvider, this.State); + List emittedRequests = []; + Mock mockContext = CreateMockWorkflowContext(emittedRequests); + + // Act + await action.HandleAsync(new ActionExecutorResult(action.Id), mockContext.Object, CancellationToken.None); + + // Assert + ExternalInputRequest request = Assert.Single(emittedRequests); + Assert.Equal(FunctionName, GetFunctionCall(request).Name); + Assert.Equal( + requireApproval == true ? 1 : 0, + request.AgentResponse.Messages.SelectMany(message => message.Contents).OfType().Count()); + } + [Fact] public async Task InvokeFunctionToolExecuteWithEmptyConversationIdAsync() { @@ -236,6 +337,275 @@ ValueTask ExecuteAsync() => action.CaptureResponseAsync( #region CaptureResponseAsync Tests + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task AutoSendIsValidatedBeforeFunctionDispatchAsync(bool requireApproval) + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Control", FormulaValue.New(true), sensitivity: SensitivityLevel.Sensitive); + this.State.Bind(); + InvokeFunctionTool.Builder builder = this.CreateModel( + nameof(AutoSendIsValidatedBeforeFunctionDispatchAsync), "test_function", requireApproval).ToBuilder(); + builder.Output = new InvokeToolOutput.Builder { AutoSend = BoolExpression.Expression("Local.Control").ToBuilder() }; + InvokeFunctionToolExecutor action = new(AssignParent(builder), new MockAgentProvider().Object, this.State); + List requests = []; + Mock context = CreateMockWorkflowContext(requests); + + // Act + Task ExecuteAsync() => action.HandleAsync(new ActionExecutorResult(action.Id), context.Object, CancellationToken.None).AsTask(); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains("auto send", exception.Message); + Assert.Empty(requests); + } + + [Theory] + [InlineData(true, true, false)] + [InlineData(true, false, false)] + [InlineData(false, true, false)] + [InlineData(false, false, false)] + [InlineData(true, true, true)] + [InlineData(true, false, true)] + [InlineData(false, true, true)] + [InlineData(false, false, true)] + public async Task AutoSendUsesFunctionInvocationSnapshotAsync(bool requireApproval, bool autoSend, bool restore) + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Control", FormulaValue.New(autoSend)); + this.State.Bind(); + InvokeFunctionTool.Builder builder = this.CreateModel( + nameof(AutoSendUsesFunctionInvocationSnapshotAsync), "test_function", requireApproval).ToBuilder(); + builder.Output = new InvokeToolOutput.Builder { AutoSend = BoolExpression.Expression("Local.Control").ToBuilder() }; + InvokeFunctionTool model = AssignParent(builder); + TestFunctionAgentProvider provider = new([AIFunctionFactory.Create(() => "result", name: "test_function")]); + InvokeFunctionToolExecutor action = new(model, provider, this.State); + List requests = []; + List events = []; + Mock context = CreateMockWorkflowContextWithStateStore(emittedRequests: requests); + context.Setup(c => c.AddEventAsync(It.IsAny(), It.IsAny())) + .Callback((e, _) => events.Add(e)) + .Returns(default(ValueTask)); + await action.HandleAsync(new ActionExecutorResult(action.Id), context.Object, CancellationToken.None); + ExternalInputResponse response; + if (requireApproval) + { + response = CreateApprovalResponseFor(requests, approved: true); + } + else + { + FunctionCallContent call = Assert.Single(Assert.Single(requests).AgentResponse.Messages.SelectMany(m => m.Contents).OfType()); + response = new ExternalInputResponse(new ChatMessage(ChatRole.Tool, [new FunctionResultContent(call.CallId, "result")])); + } + if (restore) + { + await InvokeProtectedMethodAsync(action, "OnCheckpointingAsync", context.Object, CancellationToken.None); + action = new InvokeFunctionToolExecutor(model, provider, this.State); + await InvokeProtectedMethodAsync(action, "OnCheckpointRestoredAsync", context.Object, CancellationToken.None); + } + this.State.Set("Control", FormulaValue.New(!autoSend)); + this.State.Bind(); + + // Act + await action.CaptureResponseAsync(context.Object, response, CancellationToken.None); + + // Assert + Assert.Equal(autoSend ? 1 : 0, events.OfType().Count()); + } + + [Theory] + [InlineData(true, true)] + [InlineData(true, false)] + [InlineData(false, true)] + [InlineData(false, false)] + public async Task AutoSendSnapshotSurvivesJsonCheckpointAsync(bool requireApproval, bool autoSend) + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Control", FormulaValue.New(autoSend)); + this.State.Bind(); + InvokeFunctionTool.Builder builder = this.CreateModel( + nameof(AutoSendSnapshotSurvivesJsonCheckpointAsync), "test_function", requireApproval).ToBuilder(); + builder.Output = new InvokeToolOutput.Builder { AutoSend = BoolExpression.Expression("Local.Control").ToBuilder() }; + InvokeFunctionTool model = AssignParent(builder); + TestFunctionAgentProvider provider = new([AIFunctionFactory.Create(() => "result", name: "test_function")]); + List events = []; + DirectoryInfo checkpointFolder = Directory.CreateDirectory(Path.Combine(Path.GetTempPath(), $"af-function-{Guid.NewGuid():N}")); + try + { + using FileSystemJsonCheckpointStore store = new(checkpointFolder); + CheckpointManager checkpointManager = CheckpointManager.CreateJson(store, DeclarativeWorkflowJsonOptions.Default); + (RequestInfoEvent? request, CheckpointInfo? checkpoint) = await WatchAsync( + await InProcessExecution.RunStreamingAsync(BuildWorkflow(this.State), this.State, checkpointManager)); + Assert.NotNull(request); + Assert.NotNull(checkpoint); + ExternalInputRequest input = Assert.IsType(request.Request.Data.As()); + ExternalInputResponse response; + if (requireApproval) + { + response = CreateApprovalResponseForRequest(input, approved: true); + } + else + { + FunctionCallContent call = Assert.Single(input.AgentResponse.Messages.SelectMany(m => m.Contents).OfType()); + response = new ExternalInputResponse(new ChatMessage(ChatRole.Tool, [new FunctionResultContent(call.CallId, "result")])); + } + WorkflowFormulaState restoredState = new(RecalcEngineFactory.Create()); + + // Act + (RequestInfoEvent? remainingRequest, _) = await WatchAsync( + await InProcessExecution.ResumeStreamingAsync(BuildWorkflow(restoredState), checkpoint, checkpointManager), + request.Request.CreateResponse(response)); + + // Assert + Assert.Null(remainingRequest); + Assert.Equal(autoSend ? 1 : 0, events.OfType().Count()); + Assert.Equal(!autoSend, Assert.IsType(restoredState.Get("Control")).Value); + } + finally + { + checkpointFolder.Delete(recursive: true); + } + + Workflow BuildWorkflow(WorkflowFormulaState state) + { + TestWorkflowExecutor root = new(); + InvokeFunctionToolExecutor action = new(model, provider, state); + RequestPort port = RequestPort.Create( + InvokeFunctionToolExecutor.Steps.ExternalInput(action.Id)); + DelegateActionExecutor resume = new( + InvokeFunctionToolExecutor.Steps.Resume(action.Id), state, + (context, response, cancellationToken) => + { + state.Set("Control", FormulaValue.New(!autoSend)); + state.Bind(); + return action.CaptureResponseAsync(context, response, cancellationToken); + }); + return new WorkflowBuilder(root) + .AddEdge(root, action) + .AddEdge(action, port) + .AddEdge(port, resume) + .Build(); + } + + async Task<(RequestInfoEvent? Request, CheckpointInfo? Checkpoint)> WatchAsync(StreamingRun run, ExternalResponse? response = null) + { + await using StreamingRun ownedRun = run; + if (response is not null) + { + await run.SendResponseAsync(response); + } + + RequestInfoEvent? request = null; + CheckpointInfo? checkpoint = null; + await foreach (WorkflowEvent workflowEvent in run.WatchStreamAsync(blockOnPendingRequest: false)) + { + events.Add(workflowEvent); + switch (workflowEvent) + { + case RequestInfoEvent requestEvent when requestEvent.Request.RequestId != response?.RequestId: + request = requestEvent; + break; + case SuperStepCompletedEvent { CompletionInfo.Checkpoint: { } completedCheckpoint }: + checkpoint = completedCheckpoint; + break; + case WorkflowErrorEvent errorEvent: + throw errorEvent.Data as Exception ?? new XunitException("Unexpected workflow failure."); + } + } + return (request, checkpoint); + } + } + + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task AutoSendUsesMatchingSnapshotForMixedResponsesAsync(bool autoSend) + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Approve", FormulaValue.New(true)); + this.State.Set("Control", FormulaValue.New(!autoSend)); + this.State.Bind(); + InvokeFunctionTool.Builder builder = this.CreateModel( + nameof(AutoSendUsesMatchingSnapshotForMixedResponsesAsync), "test_function", requireApproval: true).ToBuilder(); + builder.RequireApproval = BoolExpression.Expression("Local.Approve").ToBuilder(); + builder.Output = new InvokeToolOutput.Builder { AutoSend = BoolExpression.Expression("Local.Control").ToBuilder() }; + int invocationCount = 0; + TestFunctionAgentProvider provider = new([AIFunctionFactory.Create(() => ++invocationCount, name: "test_function")]); + InvokeFunctionToolExecutor action = new(AssignParent(builder), provider, this.State); + List requests = []; + List events = []; + Mock context = CreateMockWorkflowContextWithStateStore(emittedRequests: requests); + context.Setup(c => c.AddEventAsync(It.IsAny(), It.IsAny())) + .Callback((e, _) => events.Add(e)) + .Returns(default(ValueTask)); + await action.HandleAsync(new ActionExecutorResult(action.Id), context.Object, CancellationToken.None); + ToolApprovalResponseContent approval = GetApprovalRequest(Assert.Single(requests)).CreateResponse(approved: true); + this.State.Set("Approve", FormulaValue.New(false)); + this.State.Set("Control", FormulaValue.New(autoSend)); + this.State.Bind(); + await action.HandleAsync(new ActionExecutorResult(action.Id), context.Object, CancellationToken.None); + FunctionCallContent call = Assert.Single(requests[1].AgentResponse.Messages.SelectMany(m => m.Contents).OfType()); + ExternalInputResponse response = new(new ChatMessage(ChatRole.Tool, [approval, new FunctionResultContent(call.CallId, "result")])); + this.State.Set("Control", FormulaValue.New(!autoSend)); + this.State.Bind(); + + // Act + await action.CaptureResponseAsync(context.Object, response, CancellationToken.None); + + // Assert + Assert.Equal(autoSend ? 1 : 0, events.OfType().Count()); + Assert.Equal(0, invocationCount); + await action.CaptureResponseAsync(context.Object, CreateApprovalResponseForRequest(requests[0], approved: true), CancellationToken.None); + Assert.Single(events.OfType()); + Assert.Equal(1, invocationCount); + } + + [Theory] + [InlineData(true, true)] + [InlineData(true, false)] + [InlineData(false, true)] + [InlineData(false, false)] + public async Task InvokeFunctionToolRejectsSensitiveControlValueAsync(bool approval, bool value) + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Control", FormulaValue.New(value), sensitivity: SensitivityLevel.Sensitive); + this.State.Bind(); + InvokeFunctionTool.Builder builder = this.CreateModel( + nameof(InvokeFunctionToolRejectsSensitiveControlValueAsync), "test_function").ToBuilder(); + BoolExpression.Builder expression = BoolExpression.Expression("Local.Control").ToBuilder(); + if (approval) + { + builder.RequireApproval = expression; + } + else + { + builder.Output = new InvokeToolOutput.Builder { AutoSend = expression }; + } + InvokeFunctionToolExecutor action = new(AssignParent(builder), new MockAgentProvider().Object, this.State); + Mock context = CreateMockWorkflowContext(); + + // Act + ValueTask ExecuteAsync() => approval + ? action.HandleAsync(new ActionExecutorResult(action.Id), context.Object, CancellationToken.None) + : action.CaptureResponseAsync( + context.Object, + new ExternalInputResponse(new ChatMessage(ChatRole.Tool, [new FunctionResultContent(action.Id, "result")])), + CancellationToken.None); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(async () => await ExecuteAsync()); + Assert.Contains(approval ? "require approval" : "auto send", exception.Message); + context.Verify( + c => c.SendMessageAsync(It.IsAny(), It.IsAny(), It.IsAny()), + Times.Never); + } + [Fact] public async Task InvokeFunctionToolCaptureResponseWithNoOutputConfiguredAsync() { @@ -968,6 +1338,74 @@ public async Task InvokeFunctionToolLegacySingleSnapshotCheckpointIsMigratedAsyn Assert.Equal(LegacyApprovedArg, capturedArguments[ArgumentKey]?.ToString()); } + [Theory] + [InlineData(true, false)] + [InlineData(false, false)] + [InlineData(true, true)] + [InlineData(false, true)] + public async Task LegacyApprovalResponseValidatesAutoSendOnlyWhenApprovedAsync(bool singleSnapshot, bool approved) + { + // Arrange + InvokeFunctionTool.Builder builder = this.CreateModel( + nameof(LegacyApprovalResponseValidatesAutoSendOnlyWhenApprovedAsync), + "test_function", requireApproval: true, outputResultVariable: "Result").ToBuilder(); + InvokeToolOutput.Builder? output = builder.Output; + Assert.NotNull(output); + output.AutoSend = BoolExpression.Expression("Local.Control").ToBuilder(); + bool functionWasInvoked = false; + TestFunctionAgentProvider provider = new( + [AIFunctionFactory.Create(() => { functionWasInvoked = true; return "result"; }, name: "test_function")]); + InvokeFunctionToolExecutor action = new(AssignParent(builder), provider, this.State); + ApprovalSnapshot snapshot = new("test_function", null); + Dictionary stateStore = singleSnapshot + ? new() { ["_approvalSnapshot"] = snapshot } + : new() { ["_approvalSnapshots"] = new Dictionary { [action.Id] = snapshot } }; + Mock context = CreateMockWorkflowContextWithStateStore(stateStore); + List events = []; + context.Setup(c => c.AddEventAsync(It.IsAny(), It.IsAny())) + .Callback((workflowEvent, _) => events.Add(workflowEvent)) + .Returns(default(ValueTask)); + await InvokeProtectedMethodAsync(action, "OnCheckpointRestoredAsync", context.Object, CancellationToken.None); + this.State.Set("Control", FormulaValue.New(true), sensitivity: SensitivityLevel.Sensitive); + this.State.Bind(); + ToolApprovalRequestContent request = new(action.Id, new FunctionCallContent(action.Id, "test_function")); + ExternalInputResponse response = new(new ChatMessage(ChatRole.User, [request.CreateResponse(approved)])); + + // Act + if (approved) + { + DeclarativeActionException exception = await Assert.ThrowsAsync( + () => action.CaptureResponseAsync(context.Object, response, CancellationToken.None).AsTask()); + Assert.Contains("auto send", exception.Message); + } + else + { + await action.CaptureResponseAsync(context.Object, response, CancellationToken.None); + } + await InvokeProtectedMethodAsync(action, "OnCheckpointingAsync", context.Object, CancellationToken.None); + + // Assert + Assert.False(functionWasInvoked); + Assert.Empty(events.OfType()); + Dictionary remainingSnapshots = Assert.IsType>(stateStore["_approvalSnapshots"]); + Assert.Empty(Assert.IsType>(stateStore["_autoSendSnapshots"])); + if (approved) + { + Assert.True(remainingSnapshots.ContainsKey(action.Id)); + Assert.Empty(events.OfType()); + } + else + { + Assert.Empty(remainingSnapshots); + Assert.Single(events.OfType()); + Assert.Contains(context.Invocations, invocation => + invocation.Method.Name == nameof(IWorkflowContext.QueueStateUpdateAsync) + && invocation.Arguments.Count >= 2 + && invocation.Arguments[1] is StringValue error + && error.Value.Contains("not approved by user", StringComparison.Ordinal)); + } + } + /// /// The legacy "_approvalSnapshot" key is removed from the state store after /// migration so subsequent checkpoints do not carry stale data. @@ -1981,6 +2419,9 @@ private static Mock CreateMockWorkflowContextWithStateStore( mockContext.Setup(c => c.QueueStateUpdateAsync(It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny())) .Callback, string?, CancellationToken>((key, value, _, _) => stateStore[key] = value) .Returns(default(ValueTask)); + mockContext.Setup(c => c.QueueStateUpdateAsync(It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny())) + .Callback, string?, CancellationToken>((key, value, _, _) => stateStore[key] = value) + .Returns(default(ValueTask)); mockContext.Setup(c => c.QueueStateUpdateAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) .Callback((key, value, _, _) => stateStore[key] = value) .Returns(default(ValueTask)); @@ -2012,6 +2453,9 @@ private static Mock CreateMockWorkflowContextWithStateStore( mockContext.Setup(c => c.ReadStateAsync>(It.IsAny(), It.IsAny(), It.IsAny())) .Returns((key, _, _) => new ValueTask?>(stateStore.TryGetValue(key, out object? val) ? val as List : null)); + mockContext.Setup(c => c.ReadStateAsync>(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns((key, _, _) => + new ValueTask?>(stateStore.TryGetValue(key, out object? val) ? val as Dictionary : null)); mockContext.Setup(c => c.ReadStateAsync(It.IsAny(), It.IsAny(), It.IsAny())) .Returns((key, _, _) => new ValueTask(stateStore.TryGetValue(key, out object? val) && val is bool boolValue && boolValue)); @@ -2094,6 +2538,9 @@ private sealed class RecordingAIFunction(AIFunction inner, TestFunctionAgentProv public override string Description => inner.Description; public override JsonElement JsonSchema => inner.JsonSchema; + public override object? GetService(Type serviceType, object? serviceKey = null) => + base.GetService(serviceType, serviceKey) ?? inner.GetService(serviceType, serviceKey); + protected override ValueTask InvokeCoreAsync(AIFunctionArguments arguments, CancellationToken cancellationToken) { owner.RecordInvocation(inner.Name, arguments); diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeMcpToolExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeMcpToolExecutorTest.cs index 303f0ecbce2..b3cd7d8c8d1 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeMcpToolExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/InvokeMcpToolExecutorTest.cs @@ -191,6 +191,116 @@ public async Task InvokeMcpToolExecuteWithRequireApprovalAsync() await this.ExecuteTestAsync(model); } + [Theory] + [InlineData(true, true)] + [InlineData(true, false)] + [InlineData(false, true)] + [InlineData(false, false)] + public async Task InvokeMcpToolRejectsSensitiveControlValueAsync(bool approval, bool value) + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Control", FormulaValue.New(value), sensitivity: SensitivityLevel.Sensitive); + InvokeMcpTool.Builder builder = this.CreateModel( + nameof(InvokeMcpToolRejectsSensitiveControlValueAsync), TestServerUrl, TestToolName, + requireApproval: false).ToBuilder(); + BoolExpression.Builder expression = BoolExpression.Expression("Local.Control").ToBuilder(); + if (approval) + { + builder.RequireApproval = expression; + } + else + { + builder.Output = new InvokeToolOutput.Builder { AutoSend = expression }; + } + MockMcpToolProvider handler = new(); + InvokeMcpToolExecutor action = new( + AssignParent(builder), handler.Object, new MockAgentProvider().Object, this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action, isDiscrete: false); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains(approval ? "require approval" : "auto send", exception.Message); + if (approval) + { + handler.Verify( + h => h.InvokeToolAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny?>(), + It.IsAny(), It.IsAny()), + Times.Never); + } + } + + [Fact] + public async Task AutoSendIsValidatedBeforeMcpDispatchAsync() + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Control", FormulaValue.New(true), sensitivity: SensitivityLevel.Sensitive); + InvokeMcpTool.Builder builder = this.CreateModel( + nameof(AutoSendIsValidatedBeforeMcpDispatchAsync), TestServerUrl, TestToolName, requireApproval: false).ToBuilder(); + builder.Output = new InvokeToolOutput.Builder { AutoSend = BoolExpression.Expression("Local.Control").ToBuilder() }; + MockMcpToolProvider handler = new(); + InvokeMcpToolExecutor action = new(AssignParent(builder), handler.Object, new MockAgentProvider().Object, this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action, isDiscrete: false); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains("auto send", exception.Message); + handler.Verify( + h => h.InvokeToolAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny?>(), + It.IsAny(), It.IsAny()), + Times.Never); + } + + [Theory] + [InlineData(true, false)] + [InlineData(false, false)] + [InlineData(true, true)] + [InlineData(false, true)] + public async Task AutoSendUsesMcpApprovalSnapshotAsync(bool autoSend, bool restore) + { + // Arrange + this.State.InitializeSystem(); + this.State.Set("Control", FormulaValue.New(autoSend)); + this.State.Bind(); + InvokeMcpTool.Builder builder = this.CreateModel( + nameof(AutoSendUsesMcpApprovalSnapshotAsync), TestServerUrl, TestToolName, requireApproval: true).ToBuilder(); + builder.Output = new InvokeToolOutput.Builder { AutoSend = BoolExpression.Expression("Local.Control").ToBuilder() }; + InvokeMcpTool model = AssignParent(builder); + MockMcpToolProvider handler = new(); + MockAgentProvider provider = new(); + InvokeMcpToolExecutor action = new(model, handler.Object, provider.Object, this.State); + List requests = []; + List events = []; + Mock context = CreateMockWorkflowContextWithStateStore(requests); + context.Setup(c => c.AddEventAsync(It.IsAny(), It.IsAny())) + .Callback((e, _) => events.Add(e)) + .Returns(default(ValueTask)); + await action.HandleAsync(new ActionExecutorResult(action.Id), context.Object, CancellationToken.None); + if (restore) + { + await InvokeProtectedMethodAsync(action, "OnCheckpointingAsync", context.Object, CancellationToken.None); + action = new InvokeMcpToolExecutor(model, handler.Object, provider.Object, this.State); + await InvokeProtectedMethodAsync(action, "OnCheckpointRestoredAsync", context.Object, CancellationToken.None); + } + this.State.Set("Control", FormulaValue.New(!autoSend)); + this.State.Bind(); + + // Act + await action.CaptureResponseAsync(context.Object, CreateApprovalResponseFor(requests, approved: true), CancellationToken.None); + + // Assert + Assert.Equal(autoSend ? 1 : 0, events.OfType().Count()); + } + [Fact] public async Task InvokeMcpToolExecuteWithEmptyConversationIdAsync() { @@ -1242,23 +1352,30 @@ public async Task InvokeMcpToolHeaderSnapshotsAreRequestIsolatedAndReplaySafeAsy Assert.Equal(["header-b", "header-a"], capturedHeaderValues); } - [Fact] - public async Task InvokeMcpToolRestoredApprovalReissuesWithoutPersistingHeadersAsync() + [Theory] + [InlineData(true, false)] + [InlineData(false, false)] + [InlineData(true, true)] + [InlineData(false, true)] + public async Task InvokeMcpToolRestoredApprovalReissuesWithoutPersistingHeadersAsync(bool autoSend, bool sensitiveCurrentSetting) { // Arrange const string BeforeRestoreHeader = "before-restore-secret"; const string AfterRestoreHeader = "after-restore-secret"; this.State.Set("HeaderValue", FormulaValue.New(BeforeRestoreHeader)); + this.State.Set("Control", FormulaValue.New(autoSend)); this.State.InitializeSystem(); this.State.Bind(); - InvokeMcpTool model = this.CreateModelWithVariableHeader( + InvokeMcpTool.Builder builder = this.CreateModelWithVariableHeader( displayName: nameof(InvokeMcpToolRestoredApprovalReissuesWithoutPersistingHeadersAsync), serverUrl: TestServerUrl, toolName: TestToolName, headerName: "Authorization", - variableName: "HeaderValue"); + variableName: "HeaderValue").ToBuilder(); + builder.Output = new InvokeToolOutput.Builder { AutoSend = BoolExpression.Expression("Local.Control").ToBuilder() }; + InvokeMcpTool model = AssignParent(builder); List capturedHeaderValues = []; Mock mockProvider = new(); @@ -1282,6 +1399,10 @@ public async Task InvokeMcpToolRestoredApprovalReissuesWithoutPersistingHeadersA List emittedRequests = []; Dictionary stateStore = []; Mock mockContext = CreateMockWorkflowContextWithStateStore(emittedRequests, stateStore); + List events = []; + mockContext.Setup(context => context.AddEventAsync(It.IsAny(), It.IsAny())) + .Callback((e, _) => events.Add(e)) + .Returns(default(ValueTask)); await action.HandleAsync(new ActionExecutorResult(action.Id), mockContext.Object, CancellationToken.None); ExternalInputResponse staleResponse = CreateApprovalResponseForRequest(emittedRequests[0], approved: true); @@ -1294,6 +1415,8 @@ public async Task InvokeMcpToolRestoredApprovalReissuesWithoutPersistingHeadersA await InvokeProtectedMethodAsync(action, "OnCheckpointRestoredAsync", mockContext.Object, CancellationToken.None); this.State.Set("HeaderValue", FormulaValue.New(AfterRestoreHeader)); + this.State.Set("Control", FormulaValue.New(!autoSend), + sensitivity: sensitiveCurrentSetting ? SensitivityLevel.Sensitive : SensitivityLevel.None); this.State.Bind(); // Act @@ -1324,6 +1447,7 @@ await action.CaptureResponseAsync( CreateApprovalResponseForRequest(emittedRequests[1], approved: true), CancellationToken.None); Assert.Equal([AfterRestoreHeader], capturedHeaderValues); + Assert.Equal(autoSend ? 1 : 0, events.OfType().Count()); } [Fact] @@ -1392,8 +1516,12 @@ Task CaptureResponseAsync() => action.CaptureResponseAsync( It.IsAny()), Times.Never); } - [Fact] - public async Task InvokeMcpToolLegacyRestoredApprovalReissuesValidatedConnectionNameAsync() + [Theory] + [InlineData(true, false)] + [InlineData(false, true)] + [InlineData(null, true)] + [InlineData(null, false)] + public async Task InvokeMcpToolLegacyRestoredApprovalReissuesValidatedConnectionNameAsync(bool? autoSend, bool currentAutoSend) { // Arrange const string RequestId = "legacy-request"; @@ -1412,6 +1540,7 @@ public async Task InvokeMcpToolLegacyRestoredApprovalReissuesValidatedConnection StringExpression.Variable(PropertyPath.TopicVariable("ConnectionName"))) }, RequireApproval = new BoolExpression.Builder(BoolExpression.Literal(true)), + Output = new InvokeToolOutput.Builder { AutoSend = BoolExpression.Expression("Local.Control").ToBuilder() }, }; InvokeMcpTool model = AssignParent(builder); string? capturedConnectionName = null; @@ -1437,12 +1566,17 @@ public async Task InvokeMcpToolLegacyRestoredApprovalReissuesValidatedConnection { ["_approvalSnapshots"] = new Dictionary { - [RequestId] = new(TestServerUrl, null, TestToolName, null, "legacy-connection") + [RequestId] = new(TestServerUrl, null, TestToolName, null, "legacy-connection") { AutoSend = autoSend } } }; Mock mockContext = CreateMockWorkflowContextWithStateStore(emittedRequests, stateStore); + List events = []; + mockContext.Setup(context => context.AddEventAsync(It.IsAny(), It.IsAny())) + .Callback((e, _) => events.Add(e)) + .Returns(default(ValueTask)); await InvokeProtectedMethodAsync(action, "OnCheckpointRestoredAsync", mockContext.Object, CancellationToken.None); this.State.Set("ConnectionName", FormulaValue.New(CurrentConnectionName)); + this.State.Set("Control", FormulaValue.New(currentAutoSend)); this.State.Bind(); McpServerToolCallContent toolCall = new(RequestId, TestToolName, TestServerUrl); @@ -1481,6 +1615,53 @@ await action.CaptureResponseAsync( CreateApprovalResponseForRequest(freshRequest, approved: true), CancellationToken.None); Assert.Equal(CurrentConnectionName, capturedConnectionName); + Assert.Equal((autoSend ?? currentAutoSend) ? 1 : 0, events.OfType().Count()); + } + + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task AutoSendIsValidatedDuringLegacyReapprovalAsync(bool revalidateConnection) + { + // Arrange + const string RequestId = "legacy-request"; + this.State.InitializeSystem(); + InvokeMcpTool.Builder builder = this.CreateModelWithVariableHeader( + nameof(AutoSendIsValidatedDuringLegacyReapprovalAsync), TestServerUrl, TestToolName, "Authorization", "HeaderValue").ToBuilder(); + builder.Output = new InvokeToolOutput.Builder { AutoSend = BoolExpression.Expression("Local.Control").ToBuilder() }; + if (revalidateConnection) + { + builder.Connection = new RemoteConnection.Builder { Name = StringExpression.Literal("current-connection").ToBuilder() }; + } + MockMcpToolProvider provider = new(); + InvokeMcpToolExecutor action = new(AssignParent(builder), provider.Object, new MockAgentProvider().Object, this.State); + List requests = []; + Dictionary stateStore = new() + { + ["_approvalSnapshots"] = new Dictionary + { + [RequestId] = new(TestServerUrl, null, TestToolName, null, revalidateConnection ? "legacy-connection" : null) + } + }; + Mock context = CreateMockWorkflowContextWithStateStore(requests, stateStore); + await InvokeProtectedMethodAsync(action, "OnCheckpointRestoredAsync", context.Object, CancellationToken.None); + this.State.Set("HeaderValue", FormulaValue.New("current-header")); + this.State.Set("Control", FormulaValue.New(true), sensitivity: SensitivityLevel.Sensitive); + this.State.Bind(); + ToolApprovalRequestContent approval = new(RequestId, new McpServerToolCallContent(RequestId, TestToolName, TestServerUrl)); + ExternalInputResponse response = new(new ChatMessage(ChatRole.User, [approval.CreateResponse(approved: true)])); + + // Act + Task CaptureAsync() => action.CaptureResponseAsync(context.Object, response, CancellationToken.None).AsTask(); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(CaptureAsync); + Assert.Contains("auto send", exception.Message); + Assert.Empty(requests); + provider.Verify(handler => handler.InvokeToolAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny?>(), + It.IsAny(), It.IsAny()), Times.Never); } [Fact] diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/QuestionExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/QuestionExecutorTest.cs index b5cd92c4c2c..0cc6d30c1bd 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/QuestionExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/QuestionExecutorTest.cs @@ -125,6 +125,39 @@ public async Task QuestionPrepareResponseAsync() await this.PrepareResponseTestAsync(model, expectedPrompt: "Provide input:"); } + [Theory] + [InlineData("always prompt")] + [InlineData("skip question mode")] + [InlineData("repeat count")] + public async Task QuestionRejectsSensitiveControlValueAsync(string location) + { + // Arrange + this.State.Set("Control", FormulaValue.New(true), sensitivity: SensitivityLevel.Sensitive); + Question.Builder builder = this.CreateModel( + nameof(QuestionRejectsSensitiveControlValueAsync), "TestVariable").ToBuilder(); + switch (location) + { + case "always prompt": + builder.AlwaysPrompt = BoolExpression.Expression("Local.Control").ToBuilder(); + break; + case "skip question mode": + builder.SkipQuestionMode = EnumExpression.Expression( + """If(Local.Control, "AlwaysAsk", "AlwaysSkipIfVariableHasValue")""").ToBuilder(); + break; + case "repeat count": + builder.RepeatCount = IntExpression.Expression("If(Local.Control, 2, 1)").ToBuilder(); + break; + } + QuestionExecutor action = new(AssignParent(builder), new MockAgentProvider().Object, this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action, isDiscrete: false); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains(location, exception.Message); + } + [Fact] public async Task QuestionCaptureResponseWithValidEntityAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/RetrieveConversationMessagesExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/RetrieveConversationMessagesExecutorTest.cs index 36b4e9bfbbc..095073d53cd 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/RetrieveConversationMessagesExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/RetrieveConversationMessagesExecutorTest.cs @@ -39,6 +39,44 @@ await this.ExecuteTestAsync( sortOrder: EnumExpression.Literal(AgentMessageSortOrderWrapper.Get(AgentMessageSortOrder.NewestFirst))); } + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task RetrieveMessagesRejectsSensitiveSelectionAsync(bool useLimit) + { + // Arrange + this.State.Set("Control", FormulaValue.New(true), sensitivity: SensitivityLevel.Sensitive); + MockAgentProvider provider = new(); + RetrieveConversationMessages.Builder builder = new() + { + Id = this.CreateActionId(), + Messages = PropertyPath.Create(FormatVariablePath("TestMessages")), + ConversationId = StringExpression.Literal("DefaultConversationId"), + }; + if (useLimit) + { + builder.Limit = IntExpression.Expression("If(Local.Control, 2, 1)"); + } + else + { + builder.SortOrder = EnumExpression.Expression( + """If(Local.Control, "NewestFirst", "OldestFirst")"""); + } + RetrieveConversationMessagesExecutor action = new(AssignParent(builder), provider.Object, this.State); + + // Act + Task ExecuteAsync() => this.ExecuteAsync(action); + + // Assert + DeclarativeActionException exception = await Assert.ThrowsAsync(ExecuteAsync); + Assert.Contains(useLimit ? "message limit" : "message sort order", exception.Message); + provider.Verify( + p => p.GetMessagesAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny()), + Times.Never); + } + [Theory] [InlineData(true)] [InlineData(false)] diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/SetVariableExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/SetVariableExecutorTest.cs index 4f4bb398562..4f8725b532b 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/SetVariableExecutorTest.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/SetVariableExecutorTest.cs @@ -148,6 +148,40 @@ await this.ExecuteTestAsync( expectedValue: FormulaValue.New(42)); } + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task SetConditionalExpressionContinuesAsync(bool value) + { + // Arrange + this.State.Set("Setting", FormulaValue.New(value), VariableScopeNames.Environment, SensitivityLevel.Sensitive); + SetVariable model = this.CreateModel( + nameof(SetConditionalExpressionContinuesAsync), + FormatVariablePath("Result"), + new ValueExpression.Builder(ValueExpression.Expression("If(Env.Setting, 1 / 0, 1)"))); + SetVariableExecutor action = new(model, this.State); + bool continued = false; + + // Act + await this.ExecuteAsync(action, "next_action", (context, message, cancellationToken) => + { + continued = true; + return default; + }); + + // Assert + Assert.True(continued); + Assert.Equal(SensitivityLevel.Sensitive, this.State.GetSensitivity("Result")); + if (value) + { + Assert.IsType(this.State.Get("Result")); + } + else + { + this.VerifyState("Result", FormulaValue.New(1)); + } + } + private Task ExecuteTestAsync( string displayName, string variableName, diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/PowerFx/WorkflowExpressionEngineTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/PowerFx/WorkflowExpressionEngineTests.cs index 87054d436f7..31c0ee2e2b0 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/PowerFx/WorkflowExpressionEngineTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/PowerFx/WorkflowExpressionEngineTests.cs @@ -2,6 +2,8 @@ using System; using System.Collections.Immutable; +using System.Diagnostics; +using System.IO; using Microsoft.Agents.AI.Workflows.Declarative.Extensions; using Microsoft.Agents.AI.Workflows.Declarative.PowerFx; using Microsoft.Agents.ObjectModel; @@ -44,6 +46,43 @@ public WorkflowExpressionEngineTests(ITestOutputHelper output) this.State.Bind(); } + [Theory] + [InlineData("Value(Env.Setting)", VariableScopeNames.Environment)] + [InlineData("Error(Env.Setting)", VariableScopeNames.Environment)] + [InlineData("Error({Kind: ErrorKind.Custom, Message: Local.Setting})", VariableScopeNames.Local)] + public void ExpressionErrorReturnsLabelledBlankForSensitiveInput(string expression, string scope) + { + // Arrange + const string Value = "sample-setting"; + this.State.Set("Setting", FormulaValue.New(Value), scope, SensitivityLevel.Sensitive); + this.State.Bind(); + + // Act + EvaluationResult result = this.State.Evaluator.GetValue(ValueExpression.Expression(expression)); + + // Assert + Assert.Equal(DataValue.Blank(), result.Value); + Assert.Equal(SensitivityLevel.Sensitive, result.Sensitivity); + } + + [Theory] + [InlineData("Value(Local.Setting)")] + [InlineData("Error(Local.Setting)")] + public void ExpressionErrorPreservesNonSensitiveInput(string expression) + { + // Arrange + const string Value = "sample-setting"; + this.State.Set("Setting", FormulaValue.New(Value), VariableScopeNames.Local); + this.State.Bind(); + + // Act + DeclarativeActionException exception = Assert.Throws( + () => this.State.Evaluator.GetValue(ValueExpression.Expression(expression))); + + // Assert + Assert.Contains(Value, exception.Message, StringComparison.Ordinal); + } + #region BoolExpression Tests [Fact] @@ -70,6 +109,113 @@ public void BoolExpressionGetValueForBlank() => BoolExpression.Variable(PropertyPath.TopicVariable(Variables.BlankValue)), expectedValue: false); + [Theory] + [InlineData(true)] + [InlineData(false)] + public void BoolExpressionGetValueForConditionalBlankPreservesSensitivity(bool value) + { + // Arrange + this.State.Set("Setting", FormulaValue.New(value), VariableScopeNames.Environment, SensitivityLevel.Sensitive); + this.State.Bind(); + + // Act & Assert + this.EvaluateExpression( + BoolExpression.Expression("If(Env.Setting, false)"), + expectedValue: false, + expectedSensitivity: SensitivityLevel.Sensitive); + } + + [Theory] + [InlineData(true)] + [InlineData(false)] + public void ValueExpressionGetValueForConditionalErrorPreservesSensitivity(bool value) + { + // Arrange + this.State.Set("Setting", FormulaValue.New(value), VariableScopeNames.Environment, SensitivityLevel.Sensitive); + this.State.Bind(); + + // Act + EvaluationResult result = + this.State.Evaluator.GetValue(ValueExpression.Expression("If(Env.Setting, 1 / 0, 1)")); + + // Assert + Assert.Equal(SensitivityLevel.Sensitive, result.Sensitivity); + Assert.Equal(value ? DataValue.Blank() : NumberDataValue.Create(1), result.Value); + } + + [Theory] + [InlineData(VariableScopeNames.Environment, "Env")] + [InlineData(VariableScopeNames.Local, "Local")] + public void StringExpressionGetValueForConversionErrorPreservesSensitivity(string scope, string alias) + { + // Arrange + this.State.Set("Setting", FormulaValue.New("not-a-number"), scope, SensitivityLevel.Sensitive); + this.State.Bind(); + + // Act & Assert + this.EvaluateExpression( + StringExpression.Expression($"Text(Value({alias}.Setting))"), + expectedValue: string.Empty, + expectedSensitivity: SensitivityLevel.Sensitive); + } + + [Fact] + public void ValueExpressionGetValueForNonSensitiveErrorStillThrows() + { + // Arrange + ValueExpression expression = ValueExpression.Expression("1 / 0"); + + // Act & Assert + Assert.Throws(() => this.State.Evaluator.GetValue(expression)); + } + + [Theory] + [InlineData("{ Item: Value(Env.Setting) }")] + [InlineData("[Value(Env.Setting)]")] + [InlineData("Table({ Item: Value(Env.Setting) })")] + [InlineData("{ Nested: Table({ Item: Value(Env.Setting) }) }")] + public void ValueExpressionGetValueForNestedErrorPreservesSensitivity(string expression) + { + // Arrange + this.State.Set("Setting", FormulaValue.New("not-a-number"), VariableScopeNames.Environment, SensitivityLevel.Sensitive); + this.State.Bind(); + + // Act & Assert + this.EvaluateExpression( + ValueExpression.Expression(expression), + expectedValue: DataValue.Blank(), + expectedSensitivity: SensitivityLevel.Sensitive); + } + + [Theory] + [InlineData("Value(Env.Setting)", VariableScopeNames.Environment)] + [InlineData("Error(Env.Setting)", VariableScopeNames.Environment)] + [InlineData("Error({Kind: ErrorKind.Custom, Message: Local.Setting})", VariableScopeNames.Local)] + public void ExpressionErrorDiagnosticUsesReferenceName(string expression, string scope) + { + // Arrange + this.State.Set("Setting", FormulaValue.New("not-a-number"), scope, SensitivityLevel.Sensitive); + this.State.Bind(); + using StringWriter output = new(); + using TextWriterTraceListener listener = new(output); + Trace.Listeners.Add(listener); + + try + { + // Act + this.State.Evaluator.GetValue(ValueExpression.Expression(expression)); + listener.Flush(); + + // Assert + Assert.Contains($"{scope}.Setting", output.ToString()); + Assert.DoesNotContain("not-a-number", output.ToString()); + } + finally + { + Trace.Listeners.Remove(listener); + } + } + [Fact] public void BoolExpressionGetValueForVariable() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/PowerFx/WorkflowFormulaStateTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/PowerFx/WorkflowFormulaStateTests.cs index 0af699c501c..34db6f294eb 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/PowerFx/WorkflowFormulaStateTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/PowerFx/WorkflowFormulaStateTests.cs @@ -1,10 +1,12 @@ // Copyright (c) Microsoft. All rights reserved. +using System; using System.Collections.Generic; using System.Threading; using System.Threading.Tasks; using Microsoft.Agents.AI.Workflows.Declarative.PowerFx; using Microsoft.Agents.ObjectModel; +using Microsoft.Agents.ObjectModel.Abstractions; using Microsoft.PowerFx.Types; using Moq; @@ -86,6 +88,82 @@ public void SetOverwritesExistingValue() Assert.Equal(newValue, result); } + [Theory] + [InlineData("item", "ITEM", false)] + [InlineData("ITEM", "item", false)] + [InlineData("item", "ITEM", true)] + [InlineData("ITEM", "item", true)] + public void SetKeepsCaseVariantVariablesIndependent(string firstName, string secondName, bool useBlank) + { + // Arrange + FormulaValue firstValue = FormulaValue.New("first"); + FormulaValue secondValue = useBlank ? FormulaValue.NewBlank() : FormulaValue.New("second"); + this.State.Set(firstName, firstValue, sensitivity: SensitivityLevel.Sensitive); + + // Act + this.State.Set(secondName, secondValue); + this.State.Bind(); + EvaluationResult firstResult = this.State.Evaluator.GetValue(StringExpression.Expression($"Local.{firstName}")); + EvaluationResult secondResult = this.State.Evaluator.GetValue(StringExpression.Expression($"Local.{secondName}")); + + // Assert + Assert.Equal(firstValue, this.State.Get(firstName)); + Assert.Equal(secondValue, this.State.Get(secondName)); + Assert.Equal("first", firstResult.Value); + Assert.Equal(useBlank ? string.Empty : "second", secondResult.Value); + Assert.Equal(SensitivityLevel.Sensitive, firstResult.Sensitivity); + Assert.Equal(SensitivityLevel.None, secondResult.Sensitivity); + } + + [Theory] + [InlineData("item", "ITEM")] + [InlineData("ITEM", "item")] + public void SetSensitivityKeepsCaseVariantVariablesIndependent(string firstName, string secondName) + { + // Arrange + this.State.Set(firstName, FormulaValue.New("first"), sensitivity: SensitivityLevel.Sensitive); + this.State.Set(secondName, FormulaValue.New("second"), sensitivity: SensitivityLevel.Sensitive); + + // Act + this.State.SetSensitivity(secondName, VariableScopeNames.Local, SensitivityLevel.None); + + // Assert + Assert.Equal("first", Assert.IsType(this.State.Get(firstName)).Value); + Assert.Equal("second", Assert.IsType(this.State.Get(secondName)).Value); + Assert.Equal(SensitivityLevel.Sensitive, this.State.GetSensitivity(firstName)); + Assert.Equal(SensitivityLevel.None, this.State.GetSensitivity(secondName)); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task RestoreAsync_KeepsCaseVariantVariablesIndependentAsync(bool reverseOrder) + { + // Arrange + Mock context = new(MockBehavior.Strict); + HashSet keys = reverseOrder ? ["ITEM", "item"] : ["item", "ITEM"]; + context.Setup(c => c.ReadStateKeysAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync((string? scopeName, CancellationToken _) => string.Equals(scopeName, VariableScopeNames.Local, StringComparison.Ordinal) ? keys : []); + context.Setup(c => c.ReadStateAsync("item", VariableScopeNames.Local, It.IsAny())) + .ReturnsAsync(new PortableValue("first")); + context.Setup(c => c.ReadStateAsync("ITEM", VariableScopeNames.Local, It.IsAny())) + .ReturnsAsync(new PortableValue("second")); + string sensitivityScope = WorkflowFormulaState.GetSensitivityScopeName(VariableScopeNames.Local); + context.Setup(c => c.ReadStateAsync("item", sensitivityScope, It.IsAny())) + .ReturnsAsync(SensitivityLevel.Sensitive); + context.Setup(c => c.ReadStateAsync("ITEM", sensitivityScope, It.IsAny())) + .ReturnsAsync(SensitivityLevel.None); + + // Act + await this.State.RestoreAsync(context.Object, CancellationToken.None); + + // Assert + Assert.Equal("first", Assert.IsType(this.State.Get("item")).Value); + Assert.Equal("second", Assert.IsType(this.State.Get("ITEM")).Value); + Assert.Equal(SensitivityLevel.Sensitive, this.State.GetSensitivity("item")); + Assert.Equal(SensitivityLevel.None, this.State.GetSensitivity("ITEM")); + } + [Fact] public async Task RestoreAsync_RestoresPersistedSensitivityAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/Condition.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/Condition.cs index 04eb0196bc5..b65988f9240 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/Condition.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/Condition.cs @@ -71,14 +71,14 @@ internal sealed class ConditiongroupTestExecutor(FormulaSession session) : Actio // protected override async ValueTask ExecuteAsync(IWorkflowContext context, CancellationToken cancellationToken) { - var condition0 = await context.EvaluateValueWithSensitivityAsync("Mod(Local.TestValue, 2) = 1").ConfigureAwait(false); - if (condition0.Value) + bool condition0 = await context.EvaluateValueAsync("Mod(Local.TestValue, 2) = 1").ConfigureAwait(false); + if (condition0) { return "conditionItem_odd"; } - var condition1 = await context.EvaluateValueWithSensitivityAsync("Mod(Local.TestValue, 2) = 0").ConfigureAwait(false); - if (condition1.Value) + bool condition1 = await context.EvaluateValueAsync("Mod(Local.TestValue, 2) = 0").ConfigureAwait(false); + if (condition1) { return "conditionItem_even"; } diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/ConditionElse.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/ConditionElse.cs index 23ccaede2b8..a89c926b7c4 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/ConditionElse.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/ConditionElse.cs @@ -71,8 +71,8 @@ internal sealed class ConditiongroupTestExecutor(FormulaSession session) : Actio // protected override async ValueTask ExecuteAsync(IWorkflowContext context, CancellationToken cancellationToken) { - var condition0 = await context.EvaluateValueWithSensitivityAsync("Mod(Local.TestValue, 2) = 1").ConfigureAwait(false); - if (condition0.Value) + bool condition0 = await context.EvaluateValueAsync("Mod(Local.TestValue, 2) = 1").ConfigureAwait(false); + if (condition0) { return "conditionItem_odd"; } diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopBreak.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopBreak.cs index 26525b6b710..9aed5cac438 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopBreak.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopBreak.cs @@ -21,7 +21,7 @@ using Microsoft.Agents.ObjectModel.Abstractions; using Microsoft.Extensions.AI; -namespace Test.WorkflowProviders; +namespace Test.WorkflowProviders.LoopBreak; /// /// This class provides a factory method to create a instance. @@ -73,6 +73,10 @@ internal sealed class ForeachLoopExecutor(FormulaSession session) : ActionExecut { this._index = 0; EvaluationResult evaluatedValue = await context.EvaluateValueWithSensitivityAsync("""["a", "b", "c", "d", "e", "f"]""").ConfigureAwait(false); + if (evaluatedValue.Sensitivity == SensitivityLevel.Sensitive) + { + throw new DeclarativeActionException("Cannot use a sensitive value for loop items."); + } if (evaluatedValue.Value == null) { @@ -138,10 +142,17 @@ protected override async ValueTask OnCheckpointRestoredAsync(IWorkflowContext co return; } + SensitivityLevel sensitivity = + await context.ReadStateAsync(SensitivityStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); + if (sensitivity == SensitivityLevel.Sensitive) + { + throw new DeclarativeActionException("Cannot use a sensitive value for loop items."); + } + this._values = savedValues; this._index = await context.ReadStateAsync(IndexStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); this.HasValue = await context.ReadStateAsync(HasValueStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); - this._sensitivity = await context.ReadStateAsync(SensitivityStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); + this._sensitivity = sensitivity; await base.OnCheckpointRestoredAsync(context, cancellationToken).ConfigureAwait(false); } diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopContinue.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopContinue.cs index 4e6f09438a7..cd2e3389f03 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopContinue.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopContinue.cs @@ -21,7 +21,7 @@ using Microsoft.Agents.ObjectModel.Abstractions; using Microsoft.Extensions.AI; -namespace Test.WorkflowProviders; +namespace Test.WorkflowProviders.LoopContinue; /// /// This class provides a factory method to create a instance. @@ -73,6 +73,10 @@ internal sealed class ForeachLoopExecutor(FormulaSession session) : ActionExecut { this._index = 0; EvaluationResult evaluatedValue = await context.EvaluateValueWithSensitivityAsync("""["a", "b", "c", "d", "e", "f"]""").ConfigureAwait(false); + if (evaluatedValue.Sensitivity == SensitivityLevel.Sensitive) + { + throw new DeclarativeActionException("Cannot use a sensitive value for loop items."); + } if (evaluatedValue.Value == null) { @@ -138,10 +142,17 @@ protected override async ValueTask OnCheckpointRestoredAsync(IWorkflowContext co return; } + SensitivityLevel sensitivity = + await context.ReadStateAsync(SensitivityStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); + if (sensitivity == SensitivityLevel.Sensitive) + { + throw new DeclarativeActionException("Cannot use a sensitive value for loop items."); + } + this._values = savedValues; this._index = await context.ReadStateAsync(IndexStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); this.HasValue = await context.ReadStateAsync(HasValueStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); - this._sensitivity = await context.ReadStateAsync(SensitivityStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); + this._sensitivity = sensitivity; await base.OnCheckpointRestoredAsync(context, cancellationToken).ConfigureAwait(false); } diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopEach.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopEach.cs index ffacf0fbd19..2a4a6d29df7 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopEach.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Workflows/LoopEach.cs @@ -73,6 +73,10 @@ internal sealed class ForeachLoopExecutor(FormulaSession session) : ActionExecut { this._index = 0; EvaluationResult evaluatedValue = await context.EvaluateValueWithSensitivityAsync("""["a", "b", "c", "d", "e", "f"]""").ConfigureAwait(false); + if (evaluatedValue.Sensitivity == SensitivityLevel.Sensitive) + { + throw new DeclarativeActionException("Cannot use a sensitive value for loop items."); + } if (evaluatedValue.Value == null) { @@ -138,10 +142,17 @@ protected override async ValueTask OnCheckpointRestoredAsync(IWorkflowContext co return; } + SensitivityLevel sensitivity = + await context.ReadStateAsync(SensitivityStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); + if (sensitivity == SensitivityLevel.Sensitive) + { + throw new DeclarativeActionException("Cannot use a sensitive value for loop items."); + } + this._values = savedValues; this._index = await context.ReadStateAsync(IndexStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); this.HasValue = await context.ReadStateAsync(HasValueStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); - this._sensitivity = await context.ReadStateAsync(SensitivityStateKey, cancellationToken: cancellationToken).ConfigureAwait(false); + this._sensitivity = sensitivity; await base.OnCheckpointRestoredAsync(context, cancellationToken).ConfigureAwait(false); } diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/AIAgentHostExecutorTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/AIAgentHostExecutorTests.cs index 2818d230326..7f35366a6ac 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/AIAgentHostExecutorTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/AIAgentHostExecutorTests.cs @@ -291,6 +291,181 @@ List ExtractAndValidateRequestContents() where TRequest : AICo #region FilterForwardableMessages tests + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task Test_AgentHostExecutor_ForwardsCompletedCallRatherThanSubstitutedAnswerAsync( + bool forwardIncomingMessages, bool streaming) + { + // Arrange + ToolApprovalRequestContent request = new("request-id", new FunctionCallContent("call-id", "originalTool")); + ToolApprovalResponseContent answer = new( + request.RequestId, true, + new FunctionCallContent("substituted-call", "substitutedTool", new Dictionary { ["value"] = "untrusted" })) + { + Reason = "Approved", + }; + List agentMessages = [new(ChatRole.Assistant, [request])]; + TestRunContext testContext = new(); + MixedContentAgent agent = new(agentMessages, TestAgentId, TestAgentName); + AIAgentHostExecutor executor = new(agent, new() + { + ForwardIncomingMessages = forwardIncomingMessages, + EmitAgentUpdateEvents = streaming, + }); + testContext.ConfigureExecutor(executor); + await executor.TakeTurnAsync(new(), testContext.BindWorkflowContext(executor.Id)); + ExternalRequest pendingRequest = Assert.Single(testContext.ExternalRequests); + testContext.QueuedMessages.Clear(); + agentMessages.Clear(); + FunctionCallContent completedCall = new("call-id", "originalTool", new Dictionary { ["value"] = "trusted" }) + { + InformationalOnly = true, + }; + agentMessages.Add(new(ChatRole.Assistant, [completedCall])); + agentMessages.Add(new(ChatRole.Tool, [new FunctionResultContent("call-id", "Completed")])); + agentMessages.Add(new(ChatRole.Assistant, "Done")); + + // Act + await executor.Router.RouteMessageAsync(pendingRequest.CreateResponse(answer), testContext.BindWorkflowContext(executor.Id)); + + // Assert + List forwardedMessages = testContext.QueuedMessages[executor.Id] + .Select(e => e.Message) + .OfType>() + .SelectMany(list => list) + .ToList(); + var forwardedAnswer = Assert.Single(forwardedMessages.SelectMany(m => m.Contents).OfType()); + var forwardedCall = Assert.IsType(forwardedAnswer.ToolCall); + Assert.Equal("call-id", forwardedCall.CallId); + Assert.Equal("originalTool", forwardedCall.Name); + Assert.Equal("trusted", forwardedCall.Arguments!["value"]); + Assert.False(forwardedCall.InformationalOnly); + Assert.NotSame(completedCall, forwardedCall); + Assert.NotSame(answer, forwardedAnswer); + Assert.True(forwardedAnswer.Approved); + Assert.Equal("Approved", forwardedAnswer.Reason); + Assert.True(completedCall.InformationalOnly); + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task Test_AgentHostExecutor_ForwardsExternalApprovalAnswerBeforeResultAsync( + bool forwardIncomingMessages, bool streaming) + { + // Arrange + ToolApprovalRequestContent request = new("request-id", new FunctionCallContent("call-id", "tool")); + ToolApprovalResponseContent answer = request.CreateResponse(approved: false, reason: "Denied"); + List agentMessages = [new(ChatRole.Assistant, [request])]; + TestRunContext testContext = new(); + MixedContentAgent agent = new(agentMessages, TestAgentId, TestAgentName); + AIAgentHostExecutor executor = new(agent, new() + { + ForwardIncomingMessages = forwardIncomingMessages, + EmitAgentUpdateEvents = streaming, + }); + testContext.ConfigureExecutor(executor); + await executor.TakeTurnAsync(new(), testContext.BindWorkflowContext(executor.Id)); + ExternalRequest pendingRequest = Assert.Single(testContext.ExternalRequests); + testContext.QueuedMessages.Clear(); + agentMessages.Clear(); + agentMessages.Add(new(ChatRole.Assistant, [new FunctionCallContent("call-id", "tool") { InformationalOnly = true }])); + agentMessages.Add(new(ChatRole.Tool, [new FunctionResultContent("call-id", "Rejected")])); + agentMessages.Add(new(ChatRole.Assistant, "Done")); + agent.BeforeResponse = () => + { + var alreadyForwarded = testContext.QueuedMessages.Values.SelectMany(envelopes => envelopes) + .Select(e => e.Message).OfType>().SelectMany(m => m).ToList(); + Assert.DoesNotContain(alreadyForwarded.SelectMany(m => m.Contents), c => c is ToolApprovalResponseContent); + Assert.Equal(forwardIncomingMessages, alreadyForwarded.Any(m => m.Text == "new question")); + }; + + // Act + await executor.Router.RouteMessageAsync( + new List { new(ChatRole.User, "new question") }, + testContext.BindWorkflowContext(executor.Id)); + await executor.Router.RouteMessageAsync(pendingRequest.CreateResponse(answer), testContext.BindWorkflowContext(executor.Id)); + + // Assert + List forwardedMessages = testContext.QueuedMessages[executor.Id] + .Select(e => e.Message) + .OfType>() + .SelectMany(list => list) + .ToList(); + ToolApprovalResponseContent forwardedAnswer = Assert.Single(forwardedMessages.SelectMany(m => m.Contents).OfType()); + Assert.NotSame(answer, forwardedAnswer); + Assert.Equal(answer.RequestId, forwardedAnswer.RequestId); + Assert.Equal(answer.Approved, forwardedAnswer.Approved); + Assert.Equal("Denied", forwardedAnswer.Reason); + Assert.True(forwardedMessages.FindIndex(m => m.Contents.Contains(forwardedAnswer)) + < forwardedMessages.FindIndex(m => m.Contents.OfType().Any())); + Assert.Equal(forwardIncomingMessages, forwardedMessages.Any(m => m.Text == "new question")); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task Test_AgentHostExecutor_IncompleteApprovalOutput_IsNotForwardedAsync(bool missingResult) + { + // Arrange + ToolApprovalRequestContent request = new("request-id", new FunctionCallContent("call-id", "tool")); + List agentMessages = [new(ChatRole.Assistant, [request])]; + TestRunContext testContext = new(); + MixedContentAgent agent = new(agentMessages, TestAgentId, TestAgentName); + AIAgentHostExecutor executor = new(agent, new() { ForwardIncomingMessages = false }); + testContext.ConfigureExecutor(executor); + await executor.TakeTurnAsync(new(), testContext.BindWorkflowContext(executor.Id)); + ExternalRequest pendingRequest = Assert.Single(testContext.ExternalRequests); + testContext.QueuedMessages.Clear(); + agentMessages.Clear(); + agentMessages.Add(missingResult + ? new(ChatRole.Assistant, [new FunctionCallContent("call-id", "tool")]) + : new(ChatRole.Tool, [new FunctionResultContent("call-id", "Completed")])); + var answer = request.CreateResponse(approved: true); + + // Act + var callResult = await executor.Router.RouteMessageAsync(pendingRequest.CreateResponse(answer), testContext.BindWorkflowContext(executor.Id)); + + // Assert + var exception = Assert.IsType(callResult!.Exception); + Assert.Contains("did not return a function call and result", exception.Message); + Assert.DoesNotContain( + testContext.QueuedMessages.Values.SelectMany(envelopes => envelopes).Select(e => e.Message).OfType>() + .SelectMany(messages => messages).SelectMany(m => m.Contents), + c => c is ToolApprovalResponseContent); + } + + [Fact] + public async Task Test_AgentHostExecutor_DoesNotRebroadcastIncomingApprovalAnswersAsync() + { + // Arrange + ToolApprovalRequestContent request = new("request-id", new FunctionCallContent("call-id", "tool")); + ChatMessage incomingAnswer = new(ChatRole.User, [request.CreateResponse(approved: false)]); + TestRunContext testContext = new(); + MixedContentAgent agent = new([new(ChatRole.Assistant, "Reply")], TestAgentId, TestAgentName); + AIAgentHostExecutor executor = new(agent, new() { ForwardIncomingMessages = false }); + testContext.ConfigureExecutor(executor); + + // Act + await executor.Router.RouteMessageAsync( + new List { incomingAnswer }, + testContext.BindWorkflowContext(executor.Id)); + await executor.TakeTurnAsync(new(), testContext.BindWorkflowContext(executor.Id)); + + // Assert + List forwardedMessages = testContext.QueuedMessages[executor.Id] + .Select(e => e.Message) + .OfType>() + .SelectMany(list => list) + .ToList(); + Assert.Equal("Reply", Assert.Single(forwardedMessages).Text); + } + /// /// An agent that returns response messages containing a mix of content types, /// including non-portable server-side artifacts like TextReasoningContent and @@ -298,6 +473,8 @@ List ExtractAndValidateRequestContents() where TRequest : AICo /// private sealed class MixedContentAgent(List responseMessages, string? id = null, string? name = null) : AIAgent { + public Action? BeforeResponse { get; set; } + protected override string? IdCore => id; public override string? Name => name; @@ -311,10 +488,14 @@ protected override ValueTask SerializeSessionCoreAsync(AgentSession => default; protected override Task RunCoreAsync(IEnumerable messages, AgentSession? session = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default) - => Task.FromResult(new AgentResponse(responseMessages.ToList()) { AgentId = this.Id }); + { + this.BeforeResponse?.Invoke(); + return Task.FromResult(new AgentResponse(responseMessages.ToList()) { AgentId = this.Id }); + } protected override async IAsyncEnumerable RunCoreStreamingAsync(IEnumerable messages, AgentSession? session = null, AgentRunOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default) { + this.BeforeResponse?.Invoke(); foreach (ChatMessage msg in responseMessages) { foreach (AIContent content in msg.Contents) diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/CheckpointResumeTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/CheckpointResumeTests.cs index c86e94873b8..237093dd67d 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/CheckpointResumeTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/CheckpointResumeTests.cs @@ -18,6 +18,165 @@ namespace Microsoft.Agents.AI.Workflows.UnitTests; /// public class CheckpointResumeTests { + [Theory] + [InlineData(ExecutionEnvironment.InProcess_OffThread)] + [InlineData(ExecutionEnvironment.InProcess_Lockstep)] + internal async Task Checkpoint_Restore_InvokesSharedCallbackOncePerLoadAsync(ExecutionEnvironment environment) + { + // Arrange + object sharedStateKey = new(); + int sharedRestores = 0; + int executorRestores = 0; + ValueTask RestoreSharedAsync(IWorkflowContext context, CancellationToken cancellationToken) + { + Interlocked.Increment(ref sharedRestores); + return default; + } + ValueTask RestoreExecutorAsync(IWorkflowContext context, CancellationToken cancellationToken) + { + Interlocked.Increment(ref executorRestores); + return default; + } + RestoreProbeExecutor source = new("source", RestoreSharedAsync, () => true, sharedStateKey, RestoreExecutorAsync); + RestoreProbeExecutor sink = new("sink", RestoreSharedAsync, () => true, sharedStateKey, RestoreExecutorAsync); + Workflow workflow = new WorkflowBuilder(source).AddEdge(source, sink).Build(); + CheckpointManager checkpointManager = CheckpointManager.CreateInMemory(); + InProcessExecutionEnvironment env = environment.ToWorkflowExecutionEnvironment().WithCheckpointing(checkpointManager); + CheckpointInfo? checkpoint = null; + await using (StreamingRun run = await env.RunStreamingAsync(workflow, 1)) + { + await foreach (WorkflowEvent evt in run.WatchStreamAsync()) + { + if (evt is SuperStepCompletedEvent { CompletionInfo.Checkpoint: { } saved }) + { + checkpoint = saved; + } + } + } + Assert.NotNull(checkpoint); + + // Act + await using StreamingRun resumed = await env.ResumeStreamingAsync(workflow, checkpoint); + for (int load = 1; load <= 3; load++) + { + // Assert + Assert.Equal(load, sharedRestores); + Assert.Equal(load * 2, executorRestores); + + if (load < 3) + { + await resumed.RestoreCheckpointAsync(checkpoint); + } + } + } + + [Theory] + [InlineData(ExecutionEnvironment.InProcess_OffThread)] + [InlineData(ExecutionEnvironment.InProcess_Lockstep)] + internal async Task Checkpoint_Resume_RestoresAllStateBeforeSubclassHooksAsync(ExecutionEnvironment environment) + { + // Arrange + TaskCompletionSource restoreStarted = new(TaskCreationOptions.RunContinuationsAsynchronously); + TaskCompletionSource otherRestoreStarted = new(TaskCreationOptions.RunContinuationsAsynchronously); + TaskCompletionSource releaseRestore = new(TaskCreationOptions.RunContinuationsAsynchronously); + int restoredCount = 0; + int sourceExecutorRestored = 0; + RestoreProbeExecutor source = new("source", async (_, _) => + { + restoreStarted.SetResult(true); + await releaseRestore.Task; + Interlocked.Increment(ref restoredCount); + }, () => Volatile.Read(ref restoredCount) == 2, restoreExecutor: (_, _) => + { + Interlocked.Increment(ref sourceExecutorRestored); + return default; + }); + RestoreProbeExecutor sink = new("sink", (_, _) => + { + Interlocked.Increment(ref restoredCount); + otherRestoreStarted.SetResult(true); + return default; + }, () => Volatile.Read(ref restoredCount) == 2); + Workflow workflow = new WorkflowBuilder(source).AddEdge(source, sink).Build(); + CheckpointManager checkpointManager = CheckpointManager.CreateInMemory(); + InProcessExecutionEnvironment env = environment.ToWorkflowExecutionEnvironment().WithCheckpointing(checkpointManager); + CheckpointInfo? checkpoint = null; + await using (StreamingRun run = await env.RunStreamingAsync(workflow, 1)) + { + await foreach (WorkflowEvent evt in run.WatchStreamAsync()) + { + if (evt is SuperStepCompletedEvent { CompletionInfo.Checkpoint: { } saved }) + { + checkpoint = saved; + } + } + } + Assert.NotNull(checkpoint); + + // Act + Task resume = env.ResumeStreamingAsync(workflow, checkpoint).AsTask(); + try + { + Task bothStarted = Task.WhenAll(restoreStarted.Task, otherRestoreStarted.Task); + Assert.Same(bothStarted, await Task.WhenAny(bothStarted, Task.Delay(TimeSpan.FromSeconds(10)))); + await bothStarted; + + // Assert + Assert.Null(source.RestorationCompleteInHook); + Assert.Null(sink.RestorationCompleteInHook); + Assert.Equal(0, Volatile.Read(ref sourceExecutorRestored)); + } + finally + { + releaseRestore.TrySetResult(true); + await using StreamingRun resumed = await resume; + } + Assert.True(source.RestorationCompleteInHook); + Assert.True(sink.RestorationCompleteInHook); + Assert.Equal(1, sourceExecutorRestored); + } + + private sealed class RestoreProbeExecutor : Executor, IResettableExecutor + { + private readonly Func _isRestored; + + public RestoreProbeExecutor( + string id, + Func restore, + Func isRestored, + object? sharedStateKey = null, + Func? restoreExecutor = null) : base(id) + { + this._isRestored = isRestored; + if (sharedStateKey is null) + { + this.RegisterCheckpointRestoringCallback(restore); + } + else + { + this.RegisterCheckpointRestoringCallback(sharedStateKey, restore); + } + if (restoreExecutor is not null) + { + this.RegisterCheckpointRestoringCallback(restoreExecutor); + } + } + + public bool? RestorationCompleteInHook { get; private set; } + + public ValueTask ResetAsync() => default; + + [SendsMessage(typeof(int))] + public override ValueTask HandleAsync(int message, IWorkflowContext context, CancellationToken cancellationToken = default) => + context.SendMessageAsync(message, cancellationToken: cancellationToken); + + protected internal override ValueTask OnCheckpointRestoredAsync(IWorkflowContext context, CancellationToken cancellationToken = default) + { + this.RestorationCompleteInHook = this._isRestored(); + return default; + } + } + /// /// Verifies that a resumed workflow re-emits s for /// pending external requests that existed at the time of the checkpoint. diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/EdgeRunnerTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/EdgeRunnerTests.cs index 22ae41c7010..47ccf4ffa80 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/EdgeRunnerTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/EdgeRunnerTests.cs @@ -151,6 +151,85 @@ public async Task Test_FanOutEdgeRunnerAsync() await CreateAndRunFanOutEdgeTestAsync(assignerSelectsEmpty: true, targetMatch: false); // Assigner(does not include output), Targeted(not matching) } + [Fact] + public async Task Test_FanOutEdgeRunner_DeduplicatesAssignedTargetsAsync() + { + // Arrange + TestRunContext runContext = new(); + runContext.ConfigureExecutors([ + new ForwardMessageExecutor("executor1"), + new ForwardMessageExecutor("executor2"), + new ForwardMessageExecutor("executor3") + ]); + + // The assigner names executor3 twice, and names it before executor2. + FanOutEdgeData edgeData = new("executor1", ["executor2", "executor3"], new EdgeId(0), (message, count) => [1, 0, 1]); + FanOutEdgeRunner runner = new(runContext, edgeData); + + // Act + DeliveryMapping? mapping = await runner.ChaseEdgeAsync(new("test", "executor1"), stepTracer: null, CancellationToken.None); + + // Assert + Assert.NotNull(mapping); + Assert.Equal(["executor3", "executor2"], mapping.Deliveries.Select(delivery => delivery.TargetId)); + } + + [Fact] + public async Task Test_FanOutEdgeRunner_DeduplicatesRepeatedSinksAsync() + { + // Arrange + TestRunContext runContext = new(); + runContext.ConfigureExecutors([ + new ForwardMessageExecutor("executor1"), + new ForwardMessageExecutor("executor2") + ]); + + // No assigner, and the target list names executor2 twice. + FanOutEdgeData edgeData = new("executor1", ["executor2", "executor2"], new EdgeId(0)); + FanOutEdgeRunner runner = new(runContext, edgeData); + + // Act + DeliveryMapping? mapping = await runner.ChaseEdgeAsync(new("test", "executor1"), stepTracer: null, CancellationToken.None); + + // Assert + Assert.NotNull(mapping); + Assert.Equal(["executor2"], mapping.Deliveries.Select(delivery => delivery.TargetId)); + } + + [Fact] + public async Task Test_FanOutEdge_TargetAssignedTwiceRunsOnceAsync() + { + // Arrange + int billingCalls = 0; + int techCalls = 0; + + ForwardMessageExecutor triage = new("triage"); + Func billingHandler = _ => + { + Interlocked.Increment(ref billingCalls); + return default; + }; + Func techHandler = _ => + { + Interlocked.Increment(ref techCalls); + return default; + }; + ExecutorBinding billing = billingHandler.BindAsExecutor("billing"); + ExecutorBinding tech = techHandler.BindAsExecutor("tech"); + + // The selector names the billing executor twice, as when two tags on a message route to it. + Workflow workflow = new WorkflowBuilder(triage) + .AddFanOutEdge(triage, [billing, tech], (message, count) => [0, 0]) + .Build(); + + // Act + await using Run run = await InProcessExecution.RunAsync(workflow, "charged twice, want my money back"); + + // Assert + Assert.Equal(1, billingCalls); + Assert.Equal(0, techCalls); + } + [Fact] public async Task Test_FanInEdgeRunnerAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/GroupChatOrchestrationTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/GroupChatOrchestrationTests.cs index 787b699a342..0c4b3427869 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/GroupChatOrchestrationTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/GroupChatOrchestrationTests.cs @@ -55,23 +55,34 @@ await RunCheckpointedApprovalRoundTripAsync( /// /// Round-robin group chat with two participants. The first participant exposes an /// and emits a for it on - /// its first turn. The test denies the approval and asserts that the conversation continues: - /// the first agent runs once more (the FICC denial branch produces a final assistant message), - /// then the host broadcasts that message and selects the second agent, which produces its own - /// reply. This mirrors Handoffs_TwoTransfers_SecondAgentUserApproval_ResponseServedByThirdAgentAsync + /// its first turn. The test answers the approval and asserts that the conversation continues: + /// the first agent runs once more, then the host broadcasts the answer and result and selects + /// the second agent, which produces its own reply without executing the completed call again. + /// This mirrors Handoffs_TwoTransfers_SecondAgentUserApproval_ResponseServedByThirdAgentAsync /// but on the group-chat path. /// - [Fact] - public async Task GroupChat_ToolApproval_DeniedResponse_ConversationContinuesAsync() + [Theory] + [InlineData(false, false, false)] + [InlineData(false, true, false)] + [InlineData(true, false, false)] + [InlineData(true, true, false)] + [InlineData(false, false, true)] + [InlineData(false, true, true)] + [InlineData(true, false, true)] + [InlineData(true, true, true)] + public async Task GroupChat_ToolApproval_Response_ConversationContinuesAsync(bool approved, bool streaming, bool substituteCall) { + // Arrange int approvalToolCallCount = 0; + int substitutedToolCallCount = 0; const string ApprovalCallId = "approve_call_1"; const string ApprovalToolName = "DoSomethingPrivileged"; AIFunction approvalTool = new ApprovalRequiredAIFunction(AIFunctionFactory.Create( - () => + (string value) => { + Assert.Equal("trusted", value); Interlocked.Increment(ref approvalToolCallCount); return "tool result"; }, @@ -86,7 +97,7 @@ public async Task GroupChat_ToolApproval_DeniedResponse_ConversationContinuesAsy return call switch { 1 => new ChatResponse(new ChatMessage(ChatRole.Assistant, - [new FunctionCallContent(ApprovalCallId, ApprovalToolName)])), + [new FunctionCallContent(ApprovalCallId, ApprovalToolName, new Dictionary { ["value"] = "trusted" })])), _ => new ChatResponse(new ChatMessage(ChatRole.Assistant, "agent1 final response")), }; }), @@ -101,8 +112,22 @@ [new FunctionCallContent(ApprovalCallId, ApprovalToolName)])), Interlocked.Increment(ref agent2CallCount); return new ChatResponse(new ChatMessage(ChatRole.Assistant, "agent2 reply")); }), - instructions: "You are agent2.", - name: "agent2"); + new ChatClientAgentOptions + { + Name = "agent2", + DisableApprovalResponseBinding = true, + ChatOptions = new() + { + Instructions = "You are agent2.", + Tools = + [ + approvalTool, + AIFunctionFactory.Create( + (string value) => { Interlocked.Increment(ref substitutedToolCallCount); return value; }, + name: "SubstitutedTool"), + ], + }, + }); Workflow workflow = AgentWorkflowBuilder .CreateGroupChatBuilderWith(agents => new RoundRobinGroupChatManager(agents) { MaximumIterationCount = 2 }) @@ -118,7 +143,7 @@ [new FunctionCallContent(ApprovalCallId, ApprovalToolName)])), await using (StreamingRun firstRun = await env.RunStreamingAsync(workflow, new List { new(ChatRole.User, "hello") })) { - Assert.True(await firstRun.TrySendMessageAsync(new TurnToken(emitEvents: false))); + Assert.True(await firstRun.TrySendMessageAsync(new TurnToken(emitEvents: streaming))); using CancellationTokenSource cts = new(TimeSpan.FromSeconds(30)); await foreach (WorkflowEvent evt in firstRun.WatchStreamAsync(blockOnPendingRequest: false, cts.Token)) @@ -145,14 +170,21 @@ [new FunctionCallContent(ApprovalCallId, ApprovalToolName)])), Assert.True(approvalRequest.ToolCall is FunctionCallContent); Assert.Equal(ApprovalToolName, ((FunctionCallContent)approvalRequest.ToolCall).Name); - // Deny the request and continue the conversation. - ExternalResponse denial = pendingRequest.CreateResponse(approvalRequest.CreateResponse(approved: false, reason: "Denied")); + // Act + ToolApprovalResponseContent approvalResponse = substituteCall + ? new(approvalRequest.RequestId, approved, + new FunctionCallContent("substituted-call", "SubstitutedTool", new Dictionary { ["value"] = "untrusted" })) + { + Reason = "User decision", + } + : approvalRequest.CreateResponse(approved, reason: "User decision"); + ExternalResponse decision = pendingRequest.CreateResponse(approvalResponse); List secondRunEvents = []; List? finalOutput = null; await using (StreamingRun resumed = await env.ResumeStreamingAsync(workflow, lastCheckpoint!)) { - await resumed.SendResponseAsync(denial); + await resumed.SendResponseAsync(decision); using CancellationTokenSource cts = new(TimeSpan.FromSeconds(30)); await foreach (WorkflowEvent evt in resumed.WatchStreamAsync(blockOnPendingRequest: false, cts.Token)) @@ -165,16 +197,29 @@ [new FunctionCallContent(ApprovalCallId, ApprovalToolName)])), } } + // Assert Assert.Empty(secondRunEvents.OfType() ?? []); Assert.Empty(secondRunEvents.OfType() ?? []); - Assert.Equal(0, approvalToolCallCount); + Assert.Equal(approved ? 1 : 0, approvalToolCallCount); + Assert.Equal(0, substitutedToolCallCount); Assert.True(agent1CallCount >= 2); Assert.Equal(1, agent2CallCount); Assert.NotNull(finalOutput); Assert.Contains(finalOutput!, m => m.AuthorName == "agent1"); Assert.Contains(finalOutput, m => m.AuthorName == "agent2" && m.Text == "agent2 reply"); + ToolApprovalResponseContent forwardedDecision = Assert.Single(finalOutput.SelectMany(m => m.Contents).OfType()); + Assert.Equal(approvalResponse.RequestId, forwardedDecision.RequestId); + Assert.Equal(approved, forwardedDecision.Approved); + Assert.Equal("User decision", forwardedDecision.Reason); + var forwardedCall = Assert.IsType(forwardedDecision.ToolCall); + Assert.False(forwardedCall.InformationalOnly); + Assert.Equal(ApprovalCallId, forwardedCall.CallId); + Assert.Equal(ApprovalToolName, forwardedCall.Name); + Assert.Equal("trusted", forwardedCall.Arguments!["value"]?.ToString()); + Assert.True(finalOutput.FindIndex(m => m.Contents.Contains(forwardedDecision)) + < finalOutput.FindIndex(m => m.Contents.OfType().Any(r => r.CallId == ApprovalCallId))); } /// diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/HandoffMessageFilterTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/HandoffMessageFilterTests.cs index 43e48fff1ce..3a9b169f887 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/HandoffMessageFilterTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/HandoffMessageFilterTests.cs @@ -115,6 +115,116 @@ public void Test_HandoffMessageFilter_FiltersOnlyExpectedMessages(bool firstAgen } } + [Theory] + [InlineData(false, HandoffToolCallFilteringBehavior.HandoffOnly)] + [InlineData(true, HandoffToolCallFilteringBehavior.HandoffOnly)] + [InlineData(false, HandoffToolCallFilteringBehavior.All)] + [InlineData(true, HandoffToolCallFilteringBehavior.All)] + public void Test_HandoffMessageFilter_DropsReasoningOnlyHandoffMessages(bool includeReasoning, HandoffToolCallFilteringBehavior behavior) + { + // Arrange + // Regression test for issue #7384: reasoning must not leave a handoff message after the user's request. + ChatMessage userMessage = new(ChatRole.User, "What is the status of my order?"); + FunctionCallContent handoffCall = CreateHandoffCall(1, useCallId: true, callIdSuffix: "triage"); + ChatMessage handoffMessage = new(ChatRole.Assistant, [handoffCall]); + if (includeReasoning) + { + handoffMessage.Contents.Insert(0, new TextReasoningContent("The orders specialist should answer this request.")); + } + + List messages = + [ + userMessage, + handoffMessage, + new(ChatRole.Tool, [CreateHandoffResponse(handoffCall)]), + ]; + HandoffMessagesFilter filter = new(behavior); + + // Act + List filteredMessages = [.. filter.FilterMessages(messages)]; + + // Assert + AssertMessageShape(userMessage, Assert.Single(filteredMessages)); + Assert.Contains(handoffCall, handoffMessage.Contents); + Assert.Equal(includeReasoning ? 2 : 1, handoffMessage.Contents.Count); + } + + [Theory] + [InlineData(HandoffToolCallFilteringBehavior.None)] + [InlineData(HandoffToolCallFilteringBehavior.HandoffOnly)] + [InlineData(HandoffToolCallFilteringBehavior.All)] + public void Test_HandoffMessageFilter_PreservesStandaloneReasoning(HandoffToolCallFilteringBehavior behavior) + { + // Arrange + ChatMessage message = new(ChatRole.Assistant, [new TextReasoningContent("Thinking about the user's request.")]); + HandoffMessagesFilter filter = new(behavior); + + // Act + List filteredMessages = [.. filter.FilterMessages([message])]; + + // Assert + AssertMessageShape(message, Assert.Single(filteredMessages)); + } + + [Theory] + [InlineData(HandoffToolCallFilteringBehavior.HandoffOnly)] + [InlineData(HandoffToolCallFilteringBehavior.All)] + public void Test_HandoffMessageFilter_PreservesTextAlongsideFilteredHandoffReasoning(HandoffToolCallFilteringBehavior behavior) + { + // Arrange + TextReasoningContent reasoning = new("The orders specialist should answer this request."); + TextContent text = new("I will transfer you to the orders specialist."); + FunctionCallContent handoffCall = CreateHandoffCall(1, useCallId: true, callIdSuffix: "triage"); + ChatMessage message = new(ChatRole.Assistant, [reasoning, text, handoffCall]); + HandoffMessagesFilter filter = new(behavior); + + // Act + List filteredMessages = [.. filter.FilterMessages( + [message, new(ChatRole.Tool, [CreateHandoffResponse(handoffCall)])])]; + + // Assert + AssertMessageShape(new(ChatRole.Assistant, [reasoning, text]), Assert.Single(filteredMessages)); + Assert.Equal(3, message.Contents.Count); + Assert.Contains(handoffCall, message.Contents); + } + + [Theory] + [InlineData(false, HandoffToolCallFilteringBehavior.None)] + [InlineData(true, HandoffToolCallFilteringBehavior.None)] + [InlineData(false, HandoffToolCallFilteringBehavior.HandoffOnly)] + [InlineData(false, HandoffToolCallFilteringBehavior.All)] + [InlineData(true, HandoffToolCallFilteringBehavior.All)] + public void Test_HandoffMessageFilter_ReasoningFollowsToolFiltering(bool isHandoff, HandoffToolCallFilteringBehavior behavior) + { + // Arrange + FunctionCallContent call = isHandoff + ? CreateHandoffCall(1, useCallId: true, callIdSuffix: "triage") + : CreateToolCall(useCallId: true, callIdSuffix: "orders"); + List messages = + [ + new(ChatRole.Assistant, [new TextReasoningContent("Checking the order status."), call]), + new(ChatRole.Tool, [new FunctionResultContent(call.CallId, "Order shipped.")]), + ]; + HandoffMessagesFilter filter = new(behavior); + + // Act + List filteredMessages = [.. filter.FilterMessages(messages)]; + + // Assert + if (behavior == HandoffToolCallFilteringBehavior.All) + { + Assert.Empty(filteredMessages); + } + else + { + Assert.Equal(messages.Count, filteredMessages.Count); + for (int i = 0; i < messages.Count; i++) + { + AssertMessageShape(messages[i], filteredMessages[i]); + } + } + } + private static void AssertMessageShape(ChatMessage expected, ChatMessage actual) { Assert.Equal(expected.Role, actual.Role); diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/HandoffOrchestrationTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/HandoffOrchestrationTests.cs index 2632d706b9e..80a3816e12f 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/HandoffOrchestrationTests.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/HandoffOrchestrationTests.cs @@ -182,14 +182,18 @@ public async Task Handoffs_OneTransfer_ResponseServedBySecondAgentAsync() Assert.Contains("nextAgent", result[3].AuthorName); } - [Fact] - public async Task Handoffs_OneTransfer_HandoffTargetDoesNotReceiveHandoffFunctionMessagesAsync() + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task Handoffs_OneTransfer_HandoffTargetDoesNotReceiveHandoffFunctionMessagesAsync(bool includeReasoning) { // Regression test for https://github.com/microsoft/agent-framework/issues/3161 // When a handoff occurs, the target agent should receive the original user message // but should NOT receive the handoff function call or tool result messages from the // source agent, as these confuse the target LLM into ignoring the user's question. + // Issue #7384 also covers reasoning summaries accompanying the handoff call. + // Arrange List? capturedNextAgentMessages = null; var initialAgent = new ChatClientAgent(new MockChatClient((messages, options) => @@ -197,7 +201,13 @@ public async Task Handoffs_OneTransfer_HandoffTargetDoesNotReceiveHandoffFunctio string? transferFuncName = options?.Tools?.FirstOrDefault(t => t.Name.StartsWith("handoff_to_", StringComparison.Ordinal))?.Name; Assert.NotNull(transferFuncName); - return new(new ChatMessage(ChatRole.Assistant, [new FunctionCallContent("call1", transferFuncName)])); + ChatMessage handoffMessage = new(ChatRole.Assistant, [new FunctionCallContent("call1", transferFuncName)]); + if (includeReasoning) + { + handoffMessage.Contents.Insert(0, new TextReasoningContent("The next agent can answer this question.")); + } + + return new(handoffMessage); }), name: "initialAgent"); var nextAgent = new ChatClientAgent(new MockChatClient((messages, options) => @@ -213,12 +223,17 @@ public async Task Handoffs_OneTransfer_HandoffTargetDoesNotReceiveHandoffFunctio .WithHandoff(initialAgent, nextAgent) .Build(); - _ = await RunWorkflowAsync(workflow, [new ChatMessage(ChatRole.User, "What is the derivative of x^2?")]); + // Act + (string updateText, _, _, _) = await RunWorkflowAsync(workflow, [new ChatMessage(ChatRole.User, "What is the derivative of x^2?")]); + // Assert + Assert.Equal("The derivative of x^2 is 2x.", updateText); Assert.NotNull(capturedNextAgentMessages); - // The target agent should see the original user message - Assert.Contains(capturedNextAgentMessages, m => m.Role == ChatRole.User && m.Text == "What is the derivative of x^2?"); + // The target agent should see only the original user message. + ChatMessage targetMessage = Assert.Single(capturedNextAgentMessages); + Assert.Equal(ChatRole.User, targetMessage.Role); + Assert.Equal("What is the derivative of x^2?", Assert.IsType(Assert.Single(targetMessage.Contents)).Text); // The target agent should NOT see the handoff function call or tool result from the source agent Assert.DoesNotContain(capturedNextAgentMessages, m => m.Contents.Any(c => c is FunctionCallContent fcc && fcc.Name.StartsWith("handoff_to_", StringComparison.Ordinal))); @@ -413,6 +428,287 @@ public async Task Handoffs_ReturnToInitialAgent_AsAgentKeepsInvocationsSeparateA GetMessageSequence(response.Messages)); } + [Theory] + [InlineData(false, false, false)] + [InlineData(false, false, true)] + [InlineData(false, true, false)] + [InlineData(false, true, true)] + [InlineData(true, false, false)] + [InlineData(true, false, true)] + [InlineData(true, true, false)] + [InlineData(true, true, true)] + public async Task Handoffs_ReturnToInitialAgent_ContinuesWithoutRepeatingCompletedActionAsync(bool serviceManagedHistory, bool includeReasoning, bool streaming) + { + // Arrange + const string UserRequest = "Place my order and check its shipping status with the specialist."; + const string Answer = "Your order has shipped."; + ChatMessage userMessage = new(ChatRole.User, UserRequest) { MessageId = "original-user-request" }; + List> initialAgentRequests = []; + List conversationIds = []; + int placeOrderInvocationCount = 0; + AIFunction placeOrder = AIFunctionFactory.Create(() => + { + placeOrderInvocationCount++; + return "Order placed."; + }, name: "place_order"); + int toolInvocationCount = 0; + AIFunction orderStatus = AIFunctionFactory.Create(() => + { + toolInvocationCount++; + return "shipped"; + }, name: "get_order_status"); + + var initialAgent = new ChatClientAgent(new MockChatClient((messages, options) => + { + List request = messages.ToList(); + initialAgentRequests.Add(request); + conversationIds.Add(options?.ConversationId); + ChatMessage responseMessage; + if (initialAgentRequests.Count == 1) + { + responseMessage = new(ChatRole.Assistant, [new FunctionCallContent("place-order", placeOrder.Name)]); + } + else if (initialAgentRequests.Count == 2) + { + Assert.Equal("place-order", Assert.IsType(Assert.Single(request.Last().Contents)).CallId); + string? handoffName = options?.Tools?.FirstOrDefault(t => t.Name.StartsWith("handoff_to_", StringComparison.Ordinal))?.Name; + Assert.NotNull(handoffName); + responseMessage = new(ChatRole.Assistant, [new FunctionCallContent("initial-handoff", handoffName)]); + if (includeReasoning) + { + responseMessage.Contents.Insert(0, new TextReasoningContent("The specialist should handle this request.")); + } + } + else if (initialAgentRequests.Count == 3) + { + // A repeated command repeats the side effect; a continuation resumes the existing request. + responseMessage = request.Last().Role == ChatRole.User && string.Equals(request.Last().Text, UserRequest, StringComparison.Ordinal) + ? new(ChatRole.Assistant, [new FunctionCallContent("repeated-place-order", placeOrder.Name)]) + : request.Last().Role == ChatRole.User && request.Last().Text.IndexOf("initial-handoff", StringComparison.Ordinal) >= 0 + ? new(ChatRole.Assistant, [new FunctionCallContent("ordinary-tool-call", orderStatus.Name)]) + : new(ChatRole.Assistant, string.Empty); + } + else + { + Assert.Equal(ChatRole.Tool, request.Last().Role); + responseMessage = new(ChatRole.Assistant, Answer); + } + + responseMessage.MessageId = $"initial-message-{initialAgentRequests.Count}"; + return new(responseMessage) + { + ResponseId = $"initial-response-{initialAgentRequests.Count}", + ConversationId = serviceManagedHistory ? "initial-conversation" : null, + }; + }), name: "initialAgent", tools: [placeOrder, orderStatus]); + + var specialist = new ChatClientAgent(new MockChatClient((messages, options) => + { + string? handoffName = options?.Tools?.FirstOrDefault(t => t.Name.StartsWith("handoff_to_", StringComparison.Ordinal))?.Name; + Assert.NotNull(handoffName); + ChatMessage responseMessage = new(ChatRole.Assistant, [new FunctionCallContent("specialist-handoff", handoffName)]); + if (includeReasoning) + { + responseMessage.Contents.Insert(0, new TextReasoningContent("The initial agent should handle this request.")); + } + + return new(responseMessage) + { + ResponseId = "specialist-response", + ConversationId = serviceManagedHistory ? "specialist-conversation" : null, + }; + }), name: "specialist", description: "The specialist agent"); + + Workflow workflow = AgentWorkflowBuilder.CreateHandoffBuilderWith(initialAgent) + .WithHandoff(initialAgent, specialist) + .WithHandoff(specialist, initialAgent) + .Build(); + AIAgent hostAgent = workflow.AsAIAgent(name: "BounceBackWorkflow"); + AgentSession session = await hostAgent.CreateSessionAsync(); + + // Act + AgentResponse response; + if (streaming) + { + List updates = []; + await foreach (AgentResponseUpdate update in hostAgent.RunStreamingAsync([userMessage], session)) + { + updates.Add(update); + } + response = updates.ToAgentResponse(); + } + else + { + response = await hostAgent.RunAsync([userMessage], session); + } + + // Assert + Assert.Equal(Answer, response.Text); + Assert.Equal(4, initialAgentRequests.Count); + Assert.Equal(1, placeOrderInvocationCount); + Assert.Equal(1, toolInvocationCount); + Assert.Equal("ordinary-tool-call", Assert.IsType(Assert.Single(initialAgentRequests[3].Last().Contents)).CallId); + List returningRequest = initialAgentRequests[2]; + ChatMessage continuation = returningRequest.Last(); + Assert.Equal(ChatRole.User, continuation.Role); + Assert.Contains("initial-handoff", continuation.Text, StringComparison.Ordinal); + Assert.DoesNotContain(UserRequest, continuation.Text, StringComparison.Ordinal); + Assert.Contains("Do not repeat", continuation.Text, StringComparison.Ordinal); + Assert.Null(continuation.RawRepresentation); + Assert.Equal(serviceManagedHistory ? 0 : 1, returningRequest.Count(message => string.Equals(message.Text, UserRequest, StringComparison.Ordinal))); + Assert.Contains(returningRequest, message => message.Contents.OfType().Any(result => string.Equals(result.CallId, "initial-handoff", StringComparison.Ordinal))); + Assert.Equal(serviceManagedHistory ? "initial-conversation" : null, conversationIds[2]); + if (serviceManagedHistory) + { + Assert.Equal(2, returningRequest.Count); + Assert.Equal(ChatRole.Tool, returningRequest[0].Role); + } + else + { + Assert.Contains(returningRequest, message => message.Contents.OfType().Any(call => string.Equals(call.CallId, "initial-handoff", StringComparison.Ordinal))); + } + + WorkflowSession workflowSession = Assert.IsType(session); + ChatMessage sharedUserMessage = Assert.Single(workflowSession.ChatHistoryProvider.GetAllMessages(workflowSession), message => message.Role == ChatRole.User); + Assert.Equal("original-user-request", sharedUserMessage.MessageId); + Assert.Equal(UserRequest, sharedUserMessage.Text); + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task Handoffs_ReturnAfterCheckpoint_ContinuesOnlyWithoutNewUserInputAsync(bool serviceManagedHistory, bool newUserInput) + { + // Arrange + const string OriginalRequest = "What is the status of my order?"; + const string NewRequest = "When will it arrive?"; + List> initialAgentRequests = []; + int specialistInvocationCount = 0; + AIFunctionDeclaration externalTool = AIFunctionFactory.CreateDeclaration( + "check_order", "Check the order", AIFunctionFactory.Create(() => "shipped").JsonSchema); + CheckpointManager checkpointManager = CheckpointManager.CreateInMemory(); + const ExecutionEnvironment Environment = ExecutionEnvironment.InProcess_Lockstep; + + // Act + WorkflowRunResult firstRun = await RunWorkflowCheckpointedAsync( + CreateWorkflow(), + [new ChatMessage(ChatRole.User, OriginalRequest) { MessageId = "original-request" }], + Environment, + checkpointManager); + Assert.NotNull(firstRun.LastCheckpoint); + WorkflowRunResult resumedRun; + if (newUserInput) + { + resumedRun = await RunWorkflowCheckpointedAsync( + CreateWorkflow(), + [new ChatMessage(ChatRole.User, NewRequest) { MessageId = "new-request" }], + Environment, + checkpointManager, + firstRun.LastCheckpoint); + } + else + { + ExternalRequest request = Assert.Single(firstRun.PendingRequests).Request; + FunctionCallContent? call = request.Data.As(); + Assert.NotNull(call); + ExternalResponse response = request.CreateResponse(new FunctionResultContent(call.CallId, "Return to the initial agent.")); + resumedRun = await RunWorkflowCheckpointedAsync( + CreateWorkflow(), response, Environment, checkpointManager, firstRun.LastCheckpoint); + } + + // Assert + Assert.Equal("Request answered.", resumedRun.UpdateText); + Assert.Equal(2, initialAgentRequests.Count); + Assert.Equal(2, specialistInvocationCount); + List returningRequest = initialAgentRequests[1]; + ChatMessage lastMessage = returningRequest.Last(); + Assert.Equal(ChatRole.User, lastMessage.Role); + if (newUserInput) + { + Assert.Equal(NewRequest, lastMessage.Text); + Assert.Equal("new-request", lastMessage.MessageId); + } + else + { + Assert.Contains("initial-handoff", lastMessage.Text, StringComparison.Ordinal); + Assert.DoesNotContain(OriginalRequest, lastMessage.Text, StringComparison.Ordinal); + Assert.Contains("Do not repeat", lastMessage.Text, StringComparison.Ordinal); + } + Assert.Equal(serviceManagedHistory ? 0 : 1, returningRequest.Count(message => message.Role == ChatRole.User && string.Equals(message.Text, OriginalRequest, StringComparison.Ordinal))); + Assert.Contains(returningRequest, message => message.Contents.OfType().Any(result => string.Equals(result.CallId, "initial-handoff", StringComparison.Ordinal))); + Assert.NotNull(resumedRun.Result); + Assert.Equal(newUserInput ? 2 : 1, resumedRun.Result.Count(message => message.Role == ChatRole.User)); + + Workflow CreateWorkflow() + { + var initialAgent = new ChatClientAgent(new MockChatClient((messages, options) => + { + List request = messages.ToList(); + initialAgentRequests.Add(request); + ChatMessage responseMessage; + if (initialAgentRequests.Count == 1) + { + string? handoffName = options?.Tools?.FirstOrDefault(t => t.Name.StartsWith("handoff_to_", StringComparison.Ordinal))?.Name; + Assert.NotNull(handoffName); + responseMessage = new(ChatRole.Assistant, + [new TextReasoningContent("The specialist should handle this."), new FunctionCallContent("initial-handoff", handoffName)]); + } + else + { + Assert.Equal(serviceManagedHistory ? "initial-conversation" : null, options?.ConversationId); + bool isExpectedInput = newUserInput + ? string.Equals(request.Last().Text, NewRequest, StringComparison.Ordinal) + : request.Last().Text.IndexOf("initial-handoff", StringComparison.Ordinal) >= 0 && !string.Equals(request.Last().Text, OriginalRequest, StringComparison.Ordinal); + responseMessage = new(ChatRole.Assistant, request.Last().Role == ChatRole.User && isExpectedInput ? "Request answered." : string.Empty); + } + + return new(responseMessage) { ConversationId = serviceManagedHistory ? "initial-conversation" : null }; + }), options: new() { Id = "initial-agent", Name = "initialAgent" }); + + var specialist = new ChatClientAgent(new MockChatClient((messages, options) => + { + specialistInvocationCount++; + ChatMessage responseMessage; + if (specialistInvocationCount == 1) + { + responseMessage = newUserInput + ? new(ChatRole.Assistant, "I can help with that order.") + : new(ChatRole.Assistant, [new FunctionCallContent("external-tool-call", externalTool.Name)]); + } + else + { + if (!newUserInput) + { + ChatMessage toolMessage = messages.Last(); + Assert.Equal(ChatRole.Tool, toolMessage.Role); + Assert.Equal("external-tool-call", Assert.IsType(Assert.Single(toolMessage.Contents)).CallId); + } + + string? handoffName = options?.Tools?.FirstOrDefault(t => t.Name.StartsWith("handoff_to_", StringComparison.Ordinal))?.Name; + Assert.NotNull(handoffName); + responseMessage = new(ChatRole.Assistant, + [new TextReasoningContent("The initial agent should answer now."), new FunctionCallContent("specialist-handoff", handoffName)]); + } + + return new(responseMessage) { ConversationId = serviceManagedHistory ? "specialist-conversation" : null }; + }), options: new() + { + Id = "specialist-agent", + Name = "specialist", + Description = "The specialist agent", + ChatOptions = new() { Tools = [externalTool] }, + }); + + return AgentWorkflowBuilder.CreateHandoffBuilderWith(initialAgent) + .WithHandoff(initialAgent, specialist) + .WithHandoff(specialist, initialAgent) + .EnableReturnToPrevious() + .Build(); + } + } + [Fact] public async Task Handoffs_FilteringNone_HandoffTargetReceivesAllMessagesIncludingToolCallsAsync() { diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/TestRequestAgent.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/TestRequestAgent.cs index dc7977adc97..275669ad88c 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/TestRequestAgent.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/TestRequestAgent.cs @@ -83,6 +83,11 @@ private async IAsyncEnumerable RunStreamingAsync message.Contents).OfType()) { strategy.ProcessResponse(response, traSessin); + if (response is ToolApprovalResponseContent { ToolCall: FunctionCallContent call }) + { + yield return new(ChatRole.Assistant, [new FunctionCallContent(call.CallId, call.Name, call.Arguments) { InformationalOnly = true }]); + yield return new(ChatRole.Tool, [new FunctionResultContent(call.CallId, "Completed")]); + } } if (traSessin.UnservicedRequests.Count == 0) diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/TestRunContext.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/TestRunContext.cs index be0d62528da..4b34f527c2e 100644 --- a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/TestRunContext.cs +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/TestRunContext.cs @@ -89,9 +89,7 @@ public ValueTask SendMessageAsync(object message, string? targetId = null, Cance => runnerContext.SendMessageAsync(executorId, message, targetId, cancellationToken); public ValueTask ReadOrInitStateAsync(string key, Func initialStateFactory, string? scopeName = null, CancellationToken cancellationToken = default) - { - return new(initialStateFactory()); - } + => runnerContext.StateManager.ReadOrInitStateAsync(new ScopeId(executorId, scopeName), key, initialStateFactory); public IReadOnlyDictionary? TraceContext => traceContext; diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/WorkflowExecutorStateTests.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/WorkflowExecutorStateTests.cs new file mode 100644 index 00000000000..efde9a88ae8 --- /dev/null +++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.UnitTests/WorkflowExecutorStateTests.cs @@ -0,0 +1,300 @@ +// Copyright (c) Microsoft. All rights reserved. + +using System; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Agents.AI.Workflows.Checkpointing; +using Microsoft.Extensions.AI; +using Moq; + +namespace Microsoft.Agents.AI.Workflows.UnitTests; + +public sealed class WorkflowExecutorStateTests +{ + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task StatefulExecutor_InitializesOnlyWhenStateIsMissingAsync(bool publish) + { + // Arrange + int initializationCount = 0; + ValueStateExecutor executor = new(() => ++initializationCount); + TestWorkflowContext context = new(executor.Id); + int first = await executor.ReadAsync(context, false); + if (publish) + { + await context.StateManager.PublishUpdatesAsync(null); + } + + // Act + int second = await executor.ReadAsync(context, false); + + // Assert + Assert.Equal(1, first); + Assert.Equal(first, second); + Assert.Equal(1, initializationCount); + } + + [Fact] + public async Task StatefulExecutor_PreservesNestedReadUpdatesDuringInitializationAsync() + { + // Arrange + SessionStateExecutor executor = new(true); + TestWorkflowContext context = new(executor.Id); + + // Act + List state = await executor.UpdateWithNestedReadAsync(context); + + // Assert + Assert.Equal(["outer", "inner"], state); + } + + [Fact] + public async Task MixedWorkflow_RequiresExplicitResetSupportForReuseAsync() + { + // Arrange + SessionStateExecutor executor = new(false); + ChatForwardingExecutor forwarding = new("forward"); + Workflow workflow = new WorkflowBuilder(executor).AddEdge(executor, forwarding).Build(); + workflow.TakeOwnership("first"); + await workflow.ReleaseOwnershipAsync("first", null); + + // Act + void reuse() => workflow.TakeOwnership("second"); + + // Assert + InvalidOperationException exception = Assert.Throws(reuse); + Assert.Contains("Cannot reuse Workflow", exception.Message); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task OutputExecutor_ResetClearsMessagesAfterInterruptedTurnAsync(bool cancel) + { + // Arrange + OutputMessagesExecutor executor = new(new ChatProtocolExecutorOptions { AutoSendTurnToken = false }); + TestWorkflowContext firstContext = new(executor.Id); + using CancellationTokenSource cancellation = new(); + Mock interruptedContext = new(); + interruptedContext.Setup(context => context.ReadOrInitStateAsync( + It.IsAny(), It.IsAny>>(), It.IsAny(), It.IsAny())) + .Returns((string key, Func> factory, string? scope, CancellationToken token) => + firstContext.ReadOrInitStateAsync(key, factory, scope, token)); + interruptedContext.Setup(context => context.YieldOutputAsync(It.IsAny(), It.IsAny())) + .Returns((object output, CancellationToken token) => + { + List messages = Assert.IsType>(output); + Assert.Equal(["first"], messages.Select(message => message.Text)); + if (cancel) + { + cancellation.Cancel(); + return new ValueTask(Task.FromCanceled(cancellation.Token)); + } + + return new ValueTask(Task.FromException(new InvalidOperationException("Output interrupted."))); + }); + await executor.ExecuteCoreAsync(new ChatMessage(ChatRole.User, "first"), new TypeId(typeof(ChatMessage)), firstContext); + if (cancel) + { + await Assert.ThrowsAnyAsync( + () => executor.TakeTurnAsync(new TurnToken(), interruptedContext.Object, cancellation.Token).AsTask()); + } + else + { + await Assert.ThrowsAsync( + () => executor.TakeTurnAsync(new TurnToken(), interruptedContext.Object).AsTask()); + } + + // Act + Assert.True(await new ExecutorInstanceBinding(executor).TryResetAsync()); + TestWorkflowContext secondContext = new(executor.Id); + await executor.ExecuteCoreAsync(new ChatMessage(ChatRole.User, "second"), new TypeId(typeof(ChatMessage)), secondContext); + await executor.TakeTurnAsync(new TurnToken(), secondContext); + + // Assert + List output = Assert.IsType>(Assert.Single(secondContext.YieldedOutputs)); + Assert.Equal(["second"], output.Select(message => message.Text)); + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task StatefulExecutor_ResetReloadsValueStateAsync(bool useInvocation) + { + // Arrange + ValueStateExecutor executor = new(); + TestWorkflowContext context = new(executor.Id); + await context.QueueStateUpdateAsync("value", 7); + Assert.Equal(7, await executor.ReadAsync(context, useInvocation)); + await context.QueueStateUpdateAsync("value", 9); + + // Act + await ((IResettableExecutor)executor).ResetAsync(); + int restored = await executor.ReadAsync(context, useInvocation); + + // Assert + Assert.Equal(9, restored); + } + + [Theory] + [InlineData(false, false)] + [InlineData(false, true)] + [InlineData(true, false)] + [InlineData(true, true)] + public async Task HostedStatefulExecutor_RestoresEachSessionAsync(bool useInvocation, bool streaming) + { + // Arrange + SessionStateExecutor executor = new(useInvocation); + AIAgent agent = new WorkflowBuilder(executor).Build().AsAIAgent(); + AgentSession firstSession = await agent.CreateSessionAsync(); + AgentSession secondSession = await agent.CreateSessionAsync(); + + // Act + AgentResponse first = await RunAsync("first", firstSession); + AgentResponse second = await RunAsync("second", secondSession); + AgentResponse resumedFirst = await RunAsync("next", firstSession); + AgentResponse resumedSecond = await RunAsync("last", secondSession); + + // Assert + Assert.Equal("first", first.Text); + Assert.Equal("second", second.Text); + Assert.Equal("first|next", resumedFirst.Text); + Assert.Equal("second|last", resumedSecond.Text); + + async Task RunAsync(string message, AgentSession session) + { + return streaming + ? await agent.RunStreamingAsync(message, session).ToAgentResponseAsync() + : await agent.RunAsync(message, session); + } + } + + [Theory] + [InlineData(false)] + [InlineData(true)] + public async Task HostedChatExecutor_StartsWithNewMessagesAfterInterruptedTurnAsync(bool cancel) + { + // Arrange + using CancellationTokenSource cancellation = new(); + InterruptedChatExecutor executor = new(cancel ? cancellation : null); + AIAgent agent = new WorkflowBuilder(executor).Build().AsAIAgent(); + AgentSession firstSession = await agent.CreateSessionAsync(); + AgentSession secondSession = await agent.CreateSessionAsync(); + + // Act + AgentResponse interrupted = await agent.RunAsync("first", firstSession, cancellationToken: cancellation.Token); + if (!cancel) + { + Assert.NotEmpty(interrupted.Messages.SelectMany(message => message.Contents).OfType()); + } + Assert.Equal(cancel, cancellation.IsCancellationRequested); + + AgentResponse second = await agent.RunAsync("second", secondSession); + AgentResponse resumedSecond = await agent.RunAsync("next", secondSession); + + // Assert + Assert.Equal("second", second.Text); + Assert.Equal("next", resumedSecond.Text); + } + + private sealed class ValueStateExecutor(Func? initialStateFactory = null) + : StatefulExecutor("value", initialStateFactory ?? (() => 3), new StatefulExecutorOptions { StateKey = "value" }), IResettableExecutor + { + protected override ProtocolBuilder ConfigureProtocol(ProtocolBuilder protocolBuilder) => protocolBuilder; + + ValueTask IResettableExecutor.ResetAsync() => this.ResetAsync(); + + public async ValueTask ReadAsync(IWorkflowContext context, bool useInvocation) + { + if (!useInvocation) + { + return await this.ReadStateAsync(context); + } + + int result = 0; + await this.InvokeWithStateAsync((state, _, _) => + { + result = state; + return new ValueTask(state); + }, context); + return result; + } + } + + private sealed class SessionStateExecutor(bool useInvocation) : StatefulExecutor>("state", () => []) + { + public async ValueTask> UpdateWithNestedReadAsync(IWorkflowContext context) + { + await this.InvokeWithStateAsync(async (state, ctx, cancellationToken) => + { + state.Add("outer"); + List nestedState = await this.ReadStateAsync(ctx, cancellationToken: cancellationToken); + nestedState.Add("inner"); + return state; + }, context); + + return await this.ReadStateAsync(context); + } + + protected override ProtocolBuilder ConfigureProtocol(ProtocolBuilder protocolBuilder) + { + return protocolBuilder.ConfigureRoutes(routes => routes + .AddHandler>(this.AddMessagesAsync) + .AddHandler(this.TakeTurnAsync)); + } + + private async ValueTask AddMessagesAsync(IEnumerable messages, IWorkflowContext context, CancellationToken cancellationToken) + { + if (useInvocation) + { + await this.InvokeWithStateAsync((state, _, _) => + { + state.AddRange(messages.Select(message => message.Text)); + return new ValueTask?>(state); + }, context, cancellationToken: cancellationToken); + } + else + { + List state = await this.ReadStateAsync(context, cancellationToken: cancellationToken); + state.AddRange(messages.Select(message => message.Text)); + await this.QueueStateUpdateAsync(state, context, cancellationToken); + } + } + + private async ValueTask TakeTurnAsync(TurnToken token, IWorkflowContext context, CancellationToken cancellationToken) + { + List state = await this.ReadStateAsync(context, cancellationToken: cancellationToken); + await context.AddEventAsync(new AgentResponseUpdateEvent(this.Id, + new AgentResponseUpdate(ChatRole.Assistant, string.Join("|", state))), cancellationToken); + } + } + + private sealed class InterruptedChatExecutor(CancellationTokenSource? cancellation) + : ChatProtocolExecutor("chat", new ChatProtocolExecutorOptions { AutoSendTurnToken = false }) + { + private bool _interruptNextTurn = true; + + protected override async ValueTask TakeTurnAsync( + List messages, IWorkflowContext context, bool? emitEvents, CancellationToken cancellationToken = default) + { + if (this._interruptNextTurn) + { + this._interruptNextTurn = false; + if (cancellation is not null) + { + cancellation.Cancel(); + cancellationToken.ThrowIfCancellationRequested(); + } + + throw new InvalidOperationException("Turn interrupted."); + } + + await context.AddEventAsync(new AgentResponseUpdateEvent(this.Id, + new AgentResponseUpdate(ChatRole.Assistant, string.Join("|", messages.Select(message => message.Text)))), + cancellationToken); + } + } +} diff --git a/python/.github/skills/agent-framework-py-release/SKILL.md b/python/.github/skills/agent-framework-py-release/SKILL.md index 8f3712480e9..58993d54787 100644 --- a/python/.github/skills/agent-framework-py-release/SKILL.md +++ b/python/.github/skills/agent-framework-py-release/SKILL.md @@ -86,8 +86,8 @@ Use the LATEST released tag as the compare base: ```bash LAST_RELEASED_TAG=$( - git tag -l 'python-[0-9]*.[0-9]*.[0-9]*' \ - | uv run --directory python python -c 'import sys; tags=[t.strip() for t in sys.stdin if t.strip()]; print(max(tags, key=lambda t: tuple(map(int, t[7:].split(".")))))' + git tag -l 'python-*' \ + | uv run --directory python python -c 'import re, sys; tags=[t.strip() for t in sys.stdin if re.fullmatch(r"python-\d+\.\d+\.\d+", t.strip())]; print(max(tags, key=lambda t: tuple(map(int, t[7:].split(".")))))' ) echo "Compare base: $LAST_RELEASED_TAG" ``` @@ -322,7 +322,7 @@ If `core` did not bump this cycle, do not touch floors. ### 7. Validate ```bash -cd python && uv run poe validate-python-release --base-ref "$RELEASE_BASE" +cd python && uv run --group tool-runtime poe validate-python-release --base-ref "$RELEASE_BASE" ``` Use the same freshly fetched main ref that the release branch was based on (`upstream/main` above; use `origin/main` diff --git a/python/CHANGELOG.md b/python/CHANGELOG.md index 317a4c745f9..6cea2230e6e 100644 --- a/python/CHANGELOG.md +++ b/python/CHANGELOG.md @@ -7,6 +7,50 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +## [1.22.0] - 2026-10-15 + +> [!IMPORTANT] +> **Python 3.15 support:** The core framework and root `agent-framework` package now support Python 3.15, but not every package, optional extra, or feature supports it yet because of upstream dependency constraints. Before upgrading, check the README for each package and extra you use. The [Python README](https://github.com/microsoft/agent-framework/blob/main/python/README.md#python-315-limitations) summarizes the currently known limitations. + +> [!WARNING] +> **Persisted-state compatibility:** This applies to persisted artifacts that contain serialized Agent Framework `Content` or streamed response-update records. That includes chat and message histories; session stores and protocol snapshots when they embed those records; and workflow checkpoints only when their checkpoint state contains them. Plain session metadata and checkpoints without serialized messages, content, or response updates are unaffected. +> +> The 1.22 runtime can read records written by earlier releases, but pre-1.22 runtimes cannot read new records containing `hosted` or `merge_mode`. Do not run old and new workers against the same affected store during a rolling deployment, and do not downgrade after 1.22 has written these records unless the new state is isolated or migrated. + +### Added +- **agent-framework-azure-cosmos-memory**: Add a dedicated Cosmos memory provider User-Agent token ([#9223](https://github.com/microsoft/agent-framework/pull/9223)) +- **agent-framework-foundry**: Surface OAuth consent requests in non-streaming responses ([#8976](https://github.com/microsoft/agent-framework/pull/8976)) +- **agent-framework-ollama**, **agent-framework-openai**: Add configurable service URLs to chat clients ([#9222](https://github.com/microsoft/agent-framework/pull/9222), [#9225](https://github.com/microsoft/agent-framework/pull/9225)) +- **agent-framework-oracle**: Forward Oracle connection-pool configuration settings ([#9233](https://github.com/microsoft/agent-framework/pull/9233)) + +### Changed +- **agent-framework**, **agent-framework-a2a**, **agent-framework-ag-ui**, **agent-framework-anthropic**, **agent-framework-azure-ai-search**, **agent-framework-azure-contentunderstanding**, **agent-framework-azure-cosmos**, **agent-framework-azure-cosmos-memory**, **agent-framework-azure-documentdb**, **agent-framework-bedrock**, **agent-framework-chatkit**, **agent-framework-claude**, **agent-framework-copilotstudio**, **agent-framework-core**, **agent-framework-declarative**, **agent-framework-devui**, **agent-framework-duckdb**, **agent-framework-foundry**, **agent-framework-foundry-hosting**, **agent-framework-foundry-local**, **agent-framework-gemini**, **agent-framework-github-copilot**, **agent-framework-hosting**, **agent-framework-hosting-a2a**, **agent-framework-hosting-mcp**, **agent-framework-hosting-responses**, **agent-framework-hosting-telegram**, **agent-framework-hyperlight**, **agent-framework-mem0**, **agent-framework-mistral**, **agent-framework-mongodb**, **agent-framework-monty**, **agent-framework-ollama**, **agent-framework-openai**, **agent-framework-oracle**, **agent-framework-orchestrations**, **agent-framework-postgres**, **agent-framework-purview**, **agent-framework-qdrant**, **agent-framework-redis**, **agent-framework-sql-server**, **agent-framework-tools**, **agent-framework-typesafe**: Add Python 3.15 compatibility metadata where supported, document package-specific limitations, and refresh shared dependencies and automation ([#9363](https://github.com/microsoft/agent-framework/pull/9363)) +- **agent-framework-a2a**, **agent-framework-ag-ui**, **agent-framework-anthropic**, **agent-framework-bedrock**, **agent-framework-claude**, **agent-framework-copilotstudio**, **agent-framework-core**, **agent-framework-devui**, **agent-framework-foundry**, **agent-framework-foundry-hosting**, **agent-framework-gemini**, **agent-framework-github-copilot**, **agent-framework-hosting-a2a**, **agent-framework-hosting-responses**, **agent-framework-mistral**, **agent-framework-ollama**, **agent-framework-openai**: [BREAKING] Consolidate content identity, hosted execution, protocol metadata, replay, and stream-merge semantics across providers and adapters ([#8886](https://github.com/microsoft/agent-framework/pull/8886)) +- **agent-framework-ag-ui**: [BREAKING] Enforce fail-closed request trust boundaries and bind workflow continuations and interrupts to the resolved thread ID ([#9316](https://github.com/microsoft/agent-framework/pull/9316), [#9365](https://github.com/microsoft/agent-framework/pull/9365)) +- **agent-framework-ag-ui**: [BREAKING] Prevent client Shared State and stored Thread Snapshots from replacing tool-approval state, including when AG-UI wraps an agent that does not expose its middleware ([#9368](https://github.com/microsoft/agent-framework/pull/9368)) +- **agent-framework-declarative**: [BREAKING] Bound HTTP response bodies and compressed decoding stages with a configurable limit ([#9358](https://github.com/microsoft/agent-framework/pull/9358)) +- **agent-framework-devui**: Refresh frontend runtime and development dependencies ([#9230](https://github.com/microsoft/agent-framework/pull/9230), [#9306](https://github.com/microsoft/agent-framework/pull/9306), [#9310](https://github.com/microsoft/agent-framework/pull/9310)) +- **agent-framework-purview**: Include citations and error details in Purview policy checks ([#9375](https://github.com/microsoft/agent-framework/pull/9375)) +- **docs**, **samples**: Refresh response-stream, hosted-agent, security, media-detection, hosting, approval-reuse, community-project, package-promotion, and development-tooling guidance ([#8985](https://github.com/microsoft/agent-framework/pull/8985), [#9107](https://github.com/microsoft/agent-framework/pull/9107), [#9201](https://github.com/microsoft/agent-framework/pull/9201), [#9229](https://github.com/microsoft/agent-framework/pull/9229), [#9232](https://github.com/microsoft/agent-framework/pull/9232), [#9311](https://github.com/microsoft/agent-framework/pull/9311), [#9188](https://github.com/microsoft/agent-framework/pull/9188), [#9360](https://github.com/microsoft/agent-framework/pull/9360), [#9356](https://github.com/microsoft/agent-framework/pull/9356), [#9390](https://github.com/microsoft/agent-framework/pull/9390)) +- **tests**: Consolidate dependency updates, separate optional provider development dependencies, and expand tool-role coverage ([#9292](https://github.com/microsoft/agent-framework/pull/9292), [#9255](https://github.com/microsoft/agent-framework/pull/9255), [#9323](https://github.com/microsoft/agent-framework/pull/9323)) + +### Fixed +- **agent-framework-a2a**, **agent-framework-core**, **agent-framework-openai**: Preserve continuation tokens across conversions; allow empty A2A attachments and forward selected run metadata ([#9002](https://github.com/microsoft/agent-framework/pull/9002), [#9056](https://github.com/microsoft/agent-framework/pull/9056), [#9192](https://github.com/microsoft/agent-framework/pull/9192)) +- **agent-framework-core**: Accept bare container edge targets, fold streamed text efficiently, preserve memory summaries and Mermaid node identities, correlate mixed-pause host responses, validate complex tool arguments, serialize plain enums, refresh MCP prompt catalogs, retain dictionary tool schemas, restore subworkflow sibling requests, merge single mapping tools, redact sensitive telemetry, omit tool arguments from metrics, and preserve concurrent workflow steps across pauses ([#8731](https://github.com/microsoft/agent-framework/pull/8731), [#8953](https://github.com/microsoft/agent-framework/pull/8953), [#9079](https://github.com/microsoft/agent-framework/pull/9079), [#9082](https://github.com/microsoft/agent-framework/pull/9082), [#9203](https://github.com/microsoft/agent-framework/pull/9203), [#8824](https://github.com/microsoft/agent-framework/pull/8824), [#9195](https://github.com/microsoft/agent-framework/pull/9195), [#9121](https://github.com/microsoft/agent-framework/pull/9121), [#9299](https://github.com/microsoft/agent-framework/pull/9299), [#9289](https://github.com/microsoft/agent-framework/pull/9289), [#8732](https://github.com/microsoft/agent-framework/pull/8732), [#9288](https://github.com/microsoft/agent-framework/pull/9288), [#9361](https://github.com/microsoft/agent-framework/pull/9361), [#9291](https://github.com/microsoft/agent-framework/pull/9291)) +- **agent-framework-core**: Treat a single string passed to `Message` as one text content item instead of one item per character ([#9327](https://github.com/microsoft/agent-framework/pull/9327)) +- **agent-framework-core**, **agent-framework-declarative**, **agent-framework-foundry-hosting**: Discard pending workflow state after failed or interrupted execution ([#8819](https://github.com/microsoft/agent-framework/pull/8819)) +- **agent-framework-core**, **agent-framework-openai**: Concatenate overlapping code-interpreter stream deltas without duplicating content ([#9142](https://github.com/microsoft/agent-framework/pull/9142)) +- **agent-framework-core**, **agent-framework-orchestrations**: Start a new streamed message when the response author changes ([#9353](https://github.com/microsoft/agent-framework/pull/9353)) +- **agent-framework-core**: Allow switch-case branches to share a target executor ([#9300](https://github.com/microsoft/agent-framework/pull/9300)) +- **agent-framework-declarative**: Parse scientific notation, evaluate quoted concatenations, preserve reusable model options, substitute templates at the correct positions, honor `BreakLoop` in `Foreach`, and avoid generated executor ID collisions ([#9077](https://github.com/microsoft/agent-framework/pull/9077), [#9073](https://github.com/microsoft/agent-framework/pull/9073), [#9068](https://github.com/microsoft/agent-framework/pull/9068), [#9096](https://github.com/microsoft/agent-framework/pull/9096), [#9091](https://github.com/microsoft/agent-framework/pull/9091), [#9087](https://github.com/microsoft/agent-framework/pull/9087)) +- **agent-framework-orchestrations**: Reject out-of-scope request-info filters, reset Magentic participants on replan, parse progress ledgers with braces inside strings, await async aggregators, preserve explicit zero handoff limits, and retry ledgers that name unknown agents ([#9182](https://github.com/microsoft/agent-framework/pull/9182), [#9131](https://github.com/microsoft/agent-framework/pull/9131), [#9089](https://github.com/microsoft/agent-framework/pull/9089), [#9028](https://github.com/microsoft/agent-framework/pull/9028), [#8965](https://github.com/microsoft/agent-framework/pull/8965), [#9181](https://github.com/microsoft/agent-framework/pull/9181)) +- **agent-framework-bedrock**, **agent-framework-claude**, **agent-framework-gemini**, **agent-framework-ollama**: Respect provider region, explicit zero limits, configured streamed models, and disabled tool choice ([#9249](https://github.com/microsoft/agent-framework/pull/9249), [#9159](https://github.com/microsoft/agent-framework/pull/9159), [#9139](https://github.com/microsoft/agent-framework/pull/9139), [#8987](https://github.com/microsoft/agent-framework/pull/8987)) +- **agent-framework-openai**: Read the Azure OpenAI API version before applying defaults ([#9098](https://github.com/microsoft/agent-framework/pull/9098)) +- **agent-framework-azure-ai-search**, **agent-framework-azure-contentunderstanding**: Retain image-only agentic messages and restored upload status ([#9075](https://github.com/microsoft/agent-framework/pull/9075), [#9085](https://github.com/microsoft/agent-framework/pull/9085)) +- **agent-framework-ag-ui**, **agent-framework-devui**: Persist workflow HITL user text, isolate standalone FIDES session state, and redact deployment auth tokens from logs ([#8273](https://github.com/microsoft/agent-framework/pull/8273), [#9367](https://github.com/microsoft/agent-framework/pull/9367), [#9118](https://github.com/microsoft/agent-framework/pull/9118)) +- **agent-framework-devui**: Discover entities exported through annotated assignments ([#9128](https://github.com/microsoft/agent-framework/pull/9128)) +- **agent-framework-hosting-responses**, **agent-framework-monty**, **agent-framework-redis**, **agent-framework-tools**: Preserve input-image media types, block reparse points during file capture, omit null context fields, and recover queued persistent shell commands ([#9298](https://github.com/microsoft/agent-framework/pull/9298), [#9364](https://github.com/microsoft/agent-framework/pull/9364), [#9069](https://github.com/microsoft/agent-framework/pull/9069), [#9047](https://github.com/microsoft/agent-framework/pull/9047)) + ## [1.21.0] - 2026-10-08 ### Added @@ -1808,7 +1852,8 @@ Release candidate for **agent-framework-core** and **agent-framework-azure-ai** For more information, see the [announcement blog post](https://devblogs.microsoft.com/foundry/introducing-microsoft-agent-framework-the-open-source-engine-for-agentic-ai-apps/). -[Unreleased]: https://github.com/microsoft/agent-framework/compare/python-1.21.0...HEAD +[Unreleased]: https://github.com/microsoft/agent-framework/compare/python-1.22.0...HEAD +[1.22.0]: https://github.com/microsoft/agent-framework/compare/python-1.21.0...python-1.22.0 [1.21.0]: https://github.com/microsoft/agent-framework/compare/python-1.20.0...python-1.21.0 [1.20.0]: https://github.com/microsoft/agent-framework/compare/python-1.19.0...python-1.20.0 [1.19.0]: https://github.com/microsoft/agent-framework/compare/python-1.18.0...python-1.19.0 diff --git a/python/PACKAGE_STATUS.md b/python/PACKAGE_STATUS.md index dd68cb9bff2..8c5b083d746 100644 --- a/python/PACKAGE_STATUS.md +++ b/python/PACKAGE_STATUS.md @@ -138,10 +138,6 @@ listed below. - `agent-framework-core`: experimental harness APIs for background agents, file access, looping, memory, and file-backed todo storage under `agent_framework/_harness/` -#### `MCP_LONG_RUNNING_TASKS` - -- `agent-framework-core`: `MCPTaskOptions` from `agent_framework/_mcp.py` - #### `MCP_SKILLS` - `agent-framework-core`: `MCPSkillResource`, `MCPSkill`, and `MCPSkillsSource` from diff --git a/python/packages/a2a/agent_framework_a2a/_a2a_executor.py b/python/packages/a2a/agent_framework_a2a/_a2a_executor.py index 2aa028d3856..1958b73ac28 100644 --- a/python/packages/a2a/agent_framework_a2a/_a2a_executor.py +++ b/python/packages/a2a/agent_framework_a2a/_a2a_executor.py @@ -4,9 +4,9 @@ import logging import uuid from asyncio import CancelledError -from collections.abc import Mapping +from collections.abc import Mapping, Sequence from functools import partial -from typing import Any +from typing import Any, cast from a2a.helpers import new_task_from_user_message from a2a.server.agent_execution import AgentExecutor, RequestContext @@ -27,6 +27,22 @@ logger = logging.getLogger("agent_framework.a2a") +# Key in ``SendMessageRequest.metadata`` that carries forwarded ``function_invocation_kwargs`` and ``client_kwargs``. +AGENT_FRAMEWORK_METADATA_KEY = "agent_framework" +# Names owned by the framework (chat client and tool invocation parameters). A remote caller must never be able to +# set them, since a duplicate keyword would fail the task or override framework behavior. +_RESERVED_KWARGS = frozenset({ + "messages", + "stream", + "options", + "session", + "middleware", + "compaction_strategy", + "tokenizer", + "function_invocation_kwargs", + "client_kwargs", +}) + class A2AExecutor(AgentExecutor): """Execute AI agents using the A2A (Agent-to-Agent) protocol. @@ -89,9 +105,23 @@ class A2AExecutor(AgentExecutor): agent: The AI agent to execute. stream: Whether to stream the agent response. Defaults to False. run_kwargs: Additional keyword arguments to pass to the agent's run method. + accepted_function_invocation_kwargs: Names of keys the executor accepts from the caller's + forwarded ``function_invocation_kwargs`` (see ``A2AAgent``). A client sends them in the + request metadata, and only the keys named here are passed to the agent's run method. + The default (``None``) accepts nothing. + accepted_client_kwargs: Names of keys the executor accepts from the caller's forwarded + ``client_kwargs``. Authorized independently of ``accepted_function_invocation_kwargs``, + because these values reach the chat client. The default (``None``) accepts nothing. """ - def __init__(self, agent: SupportsAgentRun, stream: bool = False, run_kwargs: Mapping[str, Any] | None = None): + def __init__( + self, + agent: SupportsAgentRun, + stream: bool = False, + run_kwargs: Mapping[str, Any] | None = None, + accepted_function_invocation_kwargs: Sequence[str] | None = None, + accepted_client_kwargs: Sequence[str] | None = None, + ): """Initialize the A2AExecutor with the specified agent. Args: @@ -99,9 +129,21 @@ def __init__(self, agent: SupportsAgentRun, stream: bool = False, run_kwargs: Ma stream: Whether to stream the agent response. Defaults to False. run_kwargs: Additional keyword arguments to pass to the agent's run method. Cannot contain 'session' or 'stream' as these are managed by the executor. + accepted_function_invocation_kwargs: Names of keys to accept from the request's forwarded + ``function_invocation_kwargs``. Accepted values are passed to the agent's run method. + Values configured in ``run_kwargs`` take precedence on conflict. Defaults to accepting + nothing. + accepted_client_kwargs: Names of keys to accept from the request's forwarded + ``client_kwargs``. Authorized separately from ``accepted_function_invocation_kwargs``, + so opting into a tool-context key does not also let the caller inject it into the + chat client. Defaults to accepting nothing. + + Framework-owned names (for example ``stream``, ``messages``, ``options`` and ``session``) and + names starting with an underscore are rejected in both allowlists. Raises: - ValueError: If run_kwargs contains 'session' or 'stream'. + ValueError: If run_kwargs contains 'session' or 'stream', or an accepted kwargs allowlist + contains a framework-owned name. """ super().__init__() self._agent: SupportsAgentRun = agent @@ -112,6 +154,17 @@ def __init__(self, agent: SupportsAgentRun, stream: bool = False, run_kwargs: Ma if "stream" in run_kwargs: raise ValueError("run_kwargs cannot contain 'stream' as it is managed by the executor.") self._run_kwargs: Mapping[str, Any] = run_kwargs or {} + for allowlist_name, allowlist in ( + ("accepted_function_invocation_kwargs", accepted_function_invocation_kwargs), + ("accepted_client_kwargs", accepted_client_kwargs), + ): + reserved = sorted(key for key in allowlist or () if key in _RESERVED_KWARGS or key.startswith("_")) + if reserved: + raise ValueError(f"{allowlist_name} cannot contain framework-owned names: {', '.join(reserved)}.") + self._accepted_kwargs: dict[str, frozenset[str]] = { + "function_invocation_kwargs": frozenset(accepted_function_invocation_kwargs or ()), + "client_kwargs": frozenset(accepted_client_kwargs or ()), + } @override async def cancel(self, context: RequestContext, event_queue: EventQueue) -> None: @@ -165,10 +218,11 @@ async def execute(self, context: RequestContext, event_queue: EventQueue) -> Non session = self._agent.create_session(session_id=task.context_id) + run_kwargs = self._build_run_kwargs(context) if self._stream: - await self._run_stream(query, session, updater) + await self._run_stream(query, session, updater, run_kwargs) else: - await self._run(query, session, updater) + await self._run(query, session, updater, run_kwargs) # Mark as complete await updater.complete() @@ -181,9 +235,31 @@ async def execute(self, context: RequestContext, event_queue: EventQueue) -> Non message=updater.new_agent_message([Part(text=str(e))]), ) - async def _run_stream(self, query: Any, session: AgentSession, updater: TaskUpdater) -> None: + def _build_run_kwargs(self, context: RequestContext) -> dict[str, Any]: + """Merge the accepted request kwargs under the configured ``run_kwargs``.""" + run_kwargs: dict[str, Any] = dict(self._run_kwargs) + if not any(self._accepted_kwargs.values()): + return run_kwargs + forwarded = context.metadata.get(AGENT_FRAMEWORK_METADATA_KEY) + if not isinstance(forwarded, Mapping): + return run_kwargs + for name, allowed in self._accepted_kwargs.items(): + values = cast("Mapping[str, Any]", forwarded).get(name) + if not isinstance(values, Mapping): + continue + accepted = {key: value for key, value in cast("Mapping[str, Any]", values).items() if key in allowed} + if accepted: + configured = run_kwargs.get(name) + run_kwargs[name] = {**accepted, **(configured or {})} + return run_kwargs + + async def _run_stream( + self, query: Any, session: AgentSession, updater: TaskUpdater, run_kwargs: Mapping[str, Any] | None = None + ) -> None: """Run the agent in streaming mode and publish updates to the task updater.""" - response_stream = self._agent.run(query, session=session, stream=True, **self._run_kwargs) + response_stream = self._agent.run( + query, session=session, stream=True, **(self._run_kwargs if run_kwargs is None else run_kwargs) + ) streamed_artifact_ids: set[str] = set() # Generate a stable artifact ID for the entire stream so all chunks share the same ID. # This ensures clients can coalesce streaming tokens into a single artifact/message @@ -200,9 +276,13 @@ async def _run_stream(self, query: Any, session: AgentSession, updater: TaskUpda ) ).get_final_response() - async def _run(self, query: Any, session: AgentSession, updater: TaskUpdater) -> None: + async def _run( + self, query: Any, session: AgentSession, updater: TaskUpdater, run_kwargs: Mapping[str, Any] | None = None + ) -> None: """Run the agent in non-streaming mode and publish messages to the task updater.""" - response = await self._agent.run(query, session=session, stream=False, **self._run_kwargs) + response = await self._agent.run( + query, session=session, stream=False, **(self._run_kwargs if run_kwargs is None else run_kwargs) + ) response_messages = response.messages if not isinstance(response_messages, list): diff --git a/python/packages/a2a/pyproject.toml b/python/packages/a2a/pyproject.toml index 79b5cb5b42e..66d6579372e 100644 --- a/python/packages/a2a/pyproject.toml +++ b/python/packages/a2a/pyproject.toml @@ -4,7 +4,7 @@ description = "A2A integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261002" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,7 +24,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.19.0,<2", + "agent-framework-core>=1.22.0,<2", "a2a-sdk>=1.0.0,<2", ] diff --git a/python/packages/a2a/tests/test_a2a_executor.py b/python/packages/a2a/tests/test_a2a_executor.py index b0929193b12..a215a853de5 100644 --- a/python/packages/a2a/tests/test_a2a_executor.py +++ b/python/packages/a2a/tests/test_a2a_executor.py @@ -928,3 +928,155 @@ async def test_full_execution_flow_with_responses( mock_updater.start_work.assert_called_once() cast(Any, executor.handle_events).assert_called_once() mock_updater.complete.assert_called_once() + + +class TestA2AExecutorForwardedKwargs: + """Tests for accepting forwarded function_invocation_kwargs and client_kwargs.""" + + @staticmethod + async def _execute(executor: A2AExecutor, metadata: Any, mock_event_queue: MagicMock, mock_task: Task) -> MagicMock: + request_context = MagicMock() + request_context.get_user_input = MagicMock(return_value="Hello") + request_context.current_task = mock_task + request_context.context_id = "ctx-123" + request_context.message = MagicMock() + request_context.metadata = metadata + + response = MagicMock(spec=AgentResponse) + response.messages = [Message(role="assistant", contents=[Content.from_text(text="Hi")])] + cast(Any, executor._agent).run = AsyncMock(return_value=response) + cast(Any, executor._agent).create_session = MagicMock() + + with patch("agent_framework_a2a._a2a_executor.TaskUpdater") as mock_updater_class: + mock_updater = MagicMock() + for name in ("submit", "start_work", "complete", "update_status"): + setattr(mock_updater, name, AsyncMock()) + mock_updater_class.return_value = mock_updater + await executor.execute(request_context, mock_event_queue) + return cast(MagicMock, executor._agent.run) + + @staticmethod + def _forwarded(**kwargs: Any) -> dict[str, Any]: + return {"agent_framework": kwargs} + + async def test_accepted_keys_are_passed_to_agent_run( + self, mock_agent: MagicMock, mock_event_queue: MagicMock, mock_task: Task + ) -> None: + executor = A2AExecutor( + mock_agent, accepted_function_invocation_kwargs=["tenant"], accepted_client_kwargs=["trace"] + ) + metadata = self._forwarded( + function_invocation_kwargs={"tenant": "acme", "other": 1}, + client_kwargs={"trace": {"id": "abc"}, "other": 2}, + ) + + run = await self._execute(executor, metadata, mock_event_queue, mock_task) + + kwargs = run.call_args.kwargs + assert kwargs["function_invocation_kwargs"] == {"tenant": "acme"} + assert kwargs["client_kwargs"] == {"trace": {"id": "abc"}} + + async def test_each_destination_is_authorized_independently( + self, mock_agent: MagicMock, mock_event_queue: MagicMock, mock_task: Task + ) -> None: + executor = A2AExecutor(mock_agent, accepted_function_invocation_kwargs=["tenant"]) + metadata = self._forwarded( + function_invocation_kwargs={"tenant": "acme"}, + client_kwargs={"tenant": "injected"}, + ) + + run = await self._execute(executor, metadata, mock_event_queue, mock_task) + + assert run.call_args.kwargs["function_invocation_kwargs"] == {"tenant": "acme"} + assert "client_kwargs" not in run.call_args.kwargs + + async def test_client_kwargs_require_their_own_opt_in( + self, mock_agent: MagicMock, mock_event_queue: MagicMock, mock_task: Task + ) -> None: + executor = A2AExecutor(mock_agent, accepted_client_kwargs=["trace"]) + metadata = self._forwarded( + function_invocation_kwargs={"trace": "tool"}, + client_kwargs={"trace": "abc"}, + ) + + run = await self._execute(executor, metadata, mock_event_queue, mock_task) + + assert "function_invocation_kwargs" not in run.call_args.kwargs + assert run.call_args.kwargs["client_kwargs"] == {"trace": "abc"} + + async def test_nothing_is_accepted_by_default( + self, mock_agent: MagicMock, mock_event_queue: MagicMock, mock_task: Task + ) -> None: + executor = A2AExecutor(mock_agent) + metadata = self._forwarded(function_invocation_kwargs={"tenant": "acme"}, client_kwargs={"trace": "abc"}) + + run = await self._execute(executor, metadata, mock_event_queue, mock_task) + + assert "function_invocation_kwargs" not in run.call_args.kwargs + assert "client_kwargs" not in run.call_args.kwargs + + async def test_configured_run_kwargs_win_on_conflict( + self, mock_agent: MagicMock, mock_event_queue: MagicMock, mock_task: Task + ) -> None: + executor = A2AExecutor( + mock_agent, + run_kwargs={"function_invocation_kwargs": {"tenant": "server", "fixed": True}}, + accepted_function_invocation_kwargs=["tenant", "extra"], + ) + metadata = self._forwarded(function_invocation_kwargs={"tenant": "caller", "extra": "x"}) + + run = await self._execute(executor, metadata, mock_event_queue, mock_task) + + assert run.call_args.kwargs["function_invocation_kwargs"] == {"tenant": "server", "fixed": True, "extra": "x"} + + @mark.parametrize( + "reserved", + ["stream", "messages", "options", "session", "middleware", "client_kwargs", "_internal"], + ) + def test_framework_owned_names_cannot_be_accepted(self, mock_agent: MagicMock, reserved: str) -> None: + with raises(ValueError, match=reserved): + A2AExecutor(mock_agent, accepted_function_invocation_kwargs=["tenant", reserved]) + with raises(ValueError, match=reserved): + A2AExecutor(mock_agent, accepted_client_kwargs=["tenant", reserved]) + + @mark.parametrize( + "metadata", + [{}, {"agent_framework": "text"}, {"agent_framework": {"client_kwargs": "text"}}], + ids=["missing", "not-a-mapping", "values-not-a-mapping"], + ) + async def test_malformed_metadata_is_ignored( + self, mock_agent: MagicMock, mock_event_queue: MagicMock, mock_task: Task, metadata: Any + ) -> None: + executor = A2AExecutor( + mock_agent, accepted_function_invocation_kwargs=["tenant"], accepted_client_kwargs=["tenant"] + ) + + run = await self._execute(executor, metadata, mock_event_queue, mock_task) + + assert "client_kwargs" not in run.call_args.kwargs + assert "function_invocation_kwargs" not in run.call_args.kwargs + + async def test_accepted_function_invocation_kwargs_are_passed_when_streaming( + self, mock_agent: MagicMock, mock_event_queue: MagicMock, mock_task: Task + ) -> None: + executor = A2AExecutor(mock_agent, stream=True, accepted_function_invocation_kwargs=["tenant"]) + stream = MagicMock() + stream.with_transform_hook = MagicMock(return_value=stream) + stream.get_final_response = AsyncMock() + request_context = MagicMock() + request_context.get_user_input = MagicMock(return_value="Hello") + request_context.current_task = mock_task + request_context.context_id = "ctx-123" + request_context.message = MagicMock() + request_context.metadata = self._forwarded(function_invocation_kwargs={"tenant": "acme"}) + cast(Any, mock_agent).run = MagicMock(return_value=stream) + cast(Any, mock_agent).create_session = MagicMock() + + with patch("agent_framework_a2a._a2a_executor.TaskUpdater") as mock_updater_class: + mock_updater = MagicMock() + for name in ("submit", "start_work", "complete", "update_status"): + setattr(mock_updater, name, AsyncMock()) + mock_updater_class.return_value = mock_updater + await executor.execute(request_context, mock_event_queue) + + assert mock_agent.run.call_args.kwargs["function_invocation_kwargs"] == {"tenant": "acme"} diff --git a/python/packages/ag-ui/AGENTS.md b/python/packages/ag-ui/AGENTS.md index 8919777d006..179667b1edc 100644 --- a/python/packages/ag-ui/AGENTS.md +++ b/python/packages/ag-ui/AGENTS.md @@ -17,6 +17,7 @@ AG-UI protocol integration for building agent UIs with the AG-UI standard. ## Types - **`AGUIRequest`** / **`AGUIChatOptions`** - Request types +- **`AuthorizationScopeResolver`** - FastAPI dependency callable that resolves authenticated endpoint ownership - **`AGUIThreadSnapshot`** / **`AGUIThreadSnapshotStore`** - Thread snapshot model with client-replayable data, private Session Continuation State, and a scoped async store protocol - **`availableInterrupts` / `resume`** - Optional canonical AG-UI `Interrupt` and `ResumeEntry` protocol data @@ -114,25 +115,56 @@ AG-UI protocol integration for building agent UIs with the AG-UI standard. - AG-UI Thread and Run ids are client-owned protocol correlation ids. Service-session mode stores provider conversation or response ids privately in the thread snapshot. Set `service_session_id_from_thread_id=True` only for compatibility when the application intentionally uses a provider continuation id as its AG-UI Thread id. +- A workflow run resolves its Thread id once. A generated id for an omitted `threadId` is the id reported in + `RUN_STARTED`, keys the `workflow_factory` cache and Thread Snapshot, and owns the run's live `request_info` + interrupts, so a continuation must send it back. A `workflow_factory` request without `threadId` that carries a + `resume` entry or a tool or approval-response message (as `_extract_responses_from_messages` defines them) is + rejected with `WORKFLOW_RESUME_NOT_FOUND` before a workflow instance is built. Checkpoint ownership binds only + client-supplied Thread ids; a checkpoint of a run without one also records the generated id as an alias, so both + the reported id and legacy id-less restores resume it. - A configured Snapshot Scope and the client-owned Thread id are combined into a deterministic internal `AgentSession.session_id`. Keep the raw Thread id for protocol events and snapshot addressing so equal Thread ids in different trusted scopes cannot collide in context-provider state. The deprecated `legacy_session_id_from_thread_id=True` compatibility option preserves raw provider keys only for explicit migrations and must warn because it disables that isolation; it is unsafe for shared multi-tenant deployments. - A configured endpoint resolver must return a non-empty string. Reject invalid results before accessing state or - invoking the runner; absence of a resolver, not an invalid result, selects intentionally unscoped operation. + Endpoint registration must explicitly provide `authorization_scope_resolver`, retain the compatible + `snapshot_scope_resolver`, or declare `single_user=True`. The authorization resolver is a FastAPI dependency and + must return a non-empty string derived from authenticated request context. Reject invalid results before accessing + state or invoking the runner; never fall back to single-user or unscoped operation after a configured resolver fails. + `single_user=True` assigns one opaque authorization scope for the lifetime of that endpoint registration and must not + be used for callers with distinct authorization. Use an explicit resolver when snapshots, checkpoints, or provider + state must retain the same scope across process restarts. - Request `state` is client-owned Shared State and is merged into `AgentSession.state`, minus a protected set: - tool-approval state, history/context-provider namespaces, message-injection state, and provider-owned keys. + tool-approval state, history/context-provider namespaces, message-injection state, standalone FIDES security + state, and provider-owned keys. When state is exposed to the model, keep it in an explicitly untrusted user-data message; never promote request state values into system/developer instruction authority. Agents declare the latter through a `service_session_state_keys` attribute, but that resolves against the agent object AG-UI is handed, so a wrapper agent that does not forward it would silently drop the protection. `_RESERVED_SERVICE_SESSION_STATE_KEYS` therefore reserves such keys unconditionally; add a key there whenever it names a remote resource that the server's own credentialed call addresses. +- `ToolApprovalMiddleware` names its session state with an application-chosen `source_id`, which a wrapper can hide + from the agent AG-UI is handed. Tool approval authority is therefore also protected by shape, not only by name: a + client Shared State value holding a non-empty `rules`, `queued_approval_requests` or `collected_approval_responses` + list is never merged into `AgentSession.state`, whatever its item encoding (`ToolApprovalState` loads more than + JSON objects), and a key that already holds that state in restored server state, as a mapping or a + `ToolApprovalState` object, cannot be replaced by client values. An ignored key stays in Shared State and the + model context; it is only not mirrored into the session. + Wrapper agents should still forward `middleware`, `context_providers` and `service_session_state_keys`, and + `_TOOL_APPROVAL_STATE_FIELDS` must stay in sync with `ToolApprovalState`. - Provider-owned keys identify remote resources that the server's own credentialed call addresses — for example the Foundry hosted-agent session ID, which selects a VM-isolated sandbox with a persistent filesystem. Never let request state choose one. `AgentSession.service_session_id` is deliberately a separate attribute rather than a `state` entry, so conversation continuation is unreachable from client input by construction; keep it that way. +- Standalone FIDES security middleware (`LabelTrackingFunctionMiddleware`, `PolicyEnforcementFunctionMiddleware`) + keeps its context label, hidden variables, and pending policy approvals in `AgentSession.state` under + `_FIDES_SESSION_STATE_KEY` or the `session_state_key` it was configured with. Request and stored Shared State must + never supply that state. The default key is always protected; a configured key is discovered from middleware visible + on the agent or its client before the run, so middleware injected later or hidden behind a wrapper that does not + expose its key is not covered. Use `SecureAgentConfig`, whose state lives under its provider `source_id`. These keys + are protected from request state only: never add them to `_RESERVED_SERVICE_SESSION_STATE_KEYS` or + `service_session_state_keys`, which also drop them from private Session Continuation State and would discard the + server's own context label. - `confirm_changes` snapshot cleanup resolves the synthetic confirmation back to its original `function_call_id`; it must never concatenate unrelated tool results or record accepted changes without a matching real result. - Configured stateless agent Thread Snapshot stores persist after function/MCP tool-result and approval safe points, @@ -172,7 +204,7 @@ from agent_framework.ag_ui import add_agent_framework_fastapi_endpoint from fastapi import FastAPI app = FastAPI() -add_agent_framework_fastapi_endpoint(app, agent) +add_agent_framework_fastapi_endpoint(app, agent, single_user=True) ``` ## Import Path diff --git a/python/packages/ag-ui/README.md b/python/packages/ag-ui/README.md index d4f8d640174..fff4b416061 100644 --- a/python/packages/ag-ui/README.md +++ b/python/packages/ag-ui/README.md @@ -39,7 +39,8 @@ agent = Agent( # Create FastAPI app and add AG-UI endpoint app = FastAPI() -add_agent_framework_fastapi_endpoint(app, agent, "/") +# Local/single-user only. Shared services must provide authorization_scope_resolver. +add_agent_framework_fastapi_endpoint(app, agent, "/", single_user=True) # Run with: uvicorn main:app --reload ``` @@ -60,7 +61,8 @@ async def start(message: str, ctx: WorkflowContext) -> None: workflow = WorkflowBuilder(start_executor=start).build() app = FastAPI() -add_agent_framework_fastapi_endpoint(app, workflow, "/") +# Local/single-user only. Shared services must provide authorization_scope_resolver. +add_agent_framework_fastapi_endpoint(app, workflow, "/", single_user=True) ``` ### Server (Thread-Scoped WorkflowBuilder) @@ -83,7 +85,8 @@ thread_scoped_workflow = AgentFrameworkWorkflow( workflow_factory=build_workflow_for_thread, name="my_workflow", ) -add_agent_framework_fastapi_endpoint(app, thread_scoped_workflow, "/") +# Local/single-user only. Shared services must provide authorization_scope_resolver. +add_agent_framework_fastapi_endpoint(app, thread_scoped_workflow, "/", single_user=True) ``` ### Client (Connect to an AG-UI Server) @@ -303,7 +306,7 @@ Review focus: whether these names are the right stable contract for Python users | Surface | Public exports | | --- | --- | -| `agent_framework.ag_ui` facade | `AgentFrameworkAgent`, `AgentFrameworkWorkflow`, `AGUIChatClient`, `AGUIEventConverter`, `AGUIHttpService`, `AGUIThreadSnapshot`, `AGUIThreadSnapshotStore`, `InMemoryAGUIThreadSnapshotStore`, `SnapshotScopeResolver`, `add_agent_framework_fastapi_endpoint`, `state_carrier`, `state_update`, `__version__` | +| `agent_framework.ag_ui` facade | `AgentFrameworkAgent`, `AgentFrameworkWorkflow`, `AGUIChatClient`, `AGUIEventConverter`, `AGUIHttpService`, `AGUIThreadSnapshot`, `AGUIThreadSnapshotStore`, `AuthorizationScopeResolver`, `InMemoryAGUIThreadSnapshotStore`, `SnapshotScopeResolver`, `add_agent_framework_fastapi_endpoint`, `state_carrier`, `state_update`, `__version__` | | Direct `agent_framework_ag_ui` package | Facade exports plus `AGUIChatOptions`, `AGUIRequest`, `AGUIThreadID`, `AgentState`, `DEFAULT_MAX_THREAD_SNAPSHOTS`, `DEFAULT_TAGS`, `PredictStateConfig`, `RunMetadata`, `SnapshotScope`, `WorkflowFactory` | | AG-UI protocol package (`ag_ui.core`) | `Interrupt`, `ResumeEntry`, `RunFinishedInterruptOutcome`, and related run outcome models | @@ -333,13 +336,49 @@ Additional compatibility and draft support: ## Security: Authentication & Authorization -The AG-UI endpoint does not enforce authentication by default. **For production deployments, you should add authentication** using FastAPI's dependency injection system via the `dependencies` parameter. +Every AG-UI endpoint must choose an authorization mode: + +- **Authenticated/shared applications:** provide `authorization_scope_resolver`. FastAPI invokes it as a dependency, so + it can declare `Depends`, `Security`, header, cookie, or `Request` parameters. It must return a stable, non-empty + scope for the authenticated principal or collaboration boundary that may access the same server-side AG-UI state. +- **Local or genuinely single-user applications:** set `single_user=True`. This deliberately treats every caller as + one authorization principal and assigns an opaque scope for the lifetime of that endpoint registration. Do not use + it on a shared service or where durable state must retain the same scope across process restarts. +- **Compatibility:** existing `snapshot_scope_resolver` integrations remain supported and provide the same trusted + scope to snapshots, internal sessions, workflows, detached-run admission, and approvals. + +Authentication in the separate `dependencies` list can allow or reject a request, but its return value does not scope +server-side state. Do not combine authentication-only dependencies with `single_user=True` when different authenticated +callers can reach the endpoint. + +### Stable Single-User Scope + +`single_user=True` creates an opaque scope for one endpoint registration, which is appropriate for local and +process-local examples. A single-user application that uses durable snapshots, checkpoints, or provider state can +instead provide an application-owned constant through the normal resolver: + +```python +def resolve_single_user_scope() -> str: + # Keep this stable for the lifetime of the persisted state and unique to this application boundary. + return "my-app:single-user:v1" + + +add_agent_framework_fastapi_endpoint( + app, + agent, + "/", + authorization_scope_resolver=resolve_single_user_scope, +) +``` + +The value is a server-owned namespace, not a credential. Do not read it from AG-UI request state or other +client-controlled input. ### API Key Authentication Example ```python import os -from fastapi import Depends, FastAPI, HTTPException, Security +from fastapi import FastAPI, HTTPException, Security from fastapi.security import APIKeyHeader from agent_framework import Agent from agent_framework.ag_ui import add_agent_framework_fastapi_endpoint @@ -349,28 +388,29 @@ API_KEY_HEADER = APIKeyHeader(name="X-API-Key", auto_error=False) EXPECTED_API_KEY = os.environ.get("AG_UI_API_KEY") -async def verify_api_key(api_key: str | None = Security(API_KEY_HEADER)) -> None: - """Verify the API key provided in the request header.""" +async def resolve_authorization_scope(api_key: str | None = Security(API_KEY_HEADER)) -> str: + """Verify the API key and return the state-ownership scope.""" if not api_key or api_key != EXPECTED_API_KEY: raise HTTPException(status_code=401, detail="Invalid or missing API key") + return "configured-api-key" # Create agent and app agent = Agent(name="my_agent", instructions="...", client=...) app = FastAPI() -# Register endpoint WITH authentication +# Register endpoint with authentication-backed authorization scoping add_agent_framework_fastapi_endpoint( app, agent, "/", - dependencies=[Depends(verify_api_key)], # Authentication enforced here + authorization_scope_resolver=resolve_authorization_scope, ) ``` ### Other Authentication Options -The `dependencies` parameter accepts any FastAPI dependency, enabling integration with: +The authorization resolver is a normal FastAPI dependency, enabling integration with: - **OAuth 2.0 / OpenID Connect** - Use `fastapi.security.OAuth2PasswordBearer` - **JWT Tokens** - Validate tokens with libraries like `python-jose` @@ -419,21 +459,18 @@ agent = ... snapshot_store = InMemoryAGUIThreadSnapshotStore(max_snapshots=500) -def resolve_snapshot_scope(request): - # Local demo scope. Production apps should derive the scope from authenticated user or tenant context. - del request - return "local-demo" - - add_agent_framework_fastapi_endpoint( app, agent, "/", snapshot_store=snapshot_store, - snapshot_scope_resolver=resolve_snapshot_scope, + single_user=True, ) ``` +For a shared deployment, replace `single_user=True` with the authenticated +`authorization_scope_resolver` shown above. + Configured stateless agent snapshot stores are updated after function/MCP tool-result batches and approval safe points, then written once more with the terminal run state. These boundaries capture completed model/tool rounds without persisting sibling text or reasoning whose stream finalizer may still reject it. Intermediate snapshots project only @@ -463,7 +500,7 @@ add_agent_framework_fastapi_endpoint( agent, "/", snapshot_store=snapshot_store, - snapshot_scope_resolver=resolve_snapshot_scope, + single_user=True, detached_runs=True, max_detached_runs=32, detached_run_timeout_seconds=3600, @@ -487,21 +524,27 @@ FastAPI dependencies and other request-scoped resources may be released after th authorization, Snapshot Scope, and other durable values before the run starts; detached tools and providers must not retain request-owned clients or sessions that are expected to close with the HTTP request. -Endpoint configuration requires `snapshot_scope_resolver` whenever a snapshot store is configured, including when -the store is already set on a pre-wrapped `AgentFrameworkAgent` or `AgentFrameworkWorkflow`. The resolver returns -the application-defined Snapshot Scope used with the AG-UI Thread id as the storage key. The endpoint also derives -the internal `AgentSession.session_id` from this trusted scope and the client-owned Thread id, so context providers -cannot merge server-side state for equal Thread ids in different scopes. The raw Thread id remains unchanged in -AG-UI events and snapshot operations. When using `AgentFrameworkWorkflow(workflow_factory=...)`, the same resolver -also scopes the in-memory workflow cache even without a snapshot store; provide it in multi-user deployments so two -users who submit the same `threadId` do not share a live `Workflow` instance. +Endpoint registration requires `authorization_scope_resolver`, the compatible `snapshot_scope_resolver`, or an +explicit `single_user=True` declaration. The authenticated resolver returns the application-defined scope used with +the AG-UI Thread id for snapshot storage, internal `AgentSession.session_id` derivation, workflow ownership, +detached-run admission, and approval state. Context providers and workflow instances therefore cannot merge +server-side state for equal Thread ids in different scopes. The raw Thread id remains unchanged in AG-UI events and +snapshot operations. `single_user=True` assigns one opaque scope per endpoint registration, including endpoints that +share the same route path or backing objects in one process. That scope changes when the endpoint is registered again; +use an explicit resolver for durable snapshots, checkpoints, or provider state that must survive process restarts. + +A workflow request that omits `threadId` is assigned a generated Thread id. It is reported in `RUN_STARTED`, keys the +`workflow_factory` instance and Thread Snapshot, and owns that run's pending `request_info` interrupts. Send it back as +`threadId` to continue the run; a continuation that omits it receives `WORKFLOW_RESUME_NOT_FOUND`. With +`workflow_factory`, a request without `threadId` that carries a `resume` entry, a tool result, or an approval response +is rejected the same way instead of starting a new run, so send `threadId` with every such request. A checkpoint +created by such a run resumes with `checkpointId` and either the reported `threadId` or, as before, no `threadId`. Authenticate and authorize the current scope on every request, including hydration and approval resume, rather than trusting a scope supplied through Shared State or forwarded properties. A configured resolver must return a non-empty string. Returning `None`, an empty string, or another type fails the request with a generic HTTP 500 configuration -error before accessing snapshots, approval state, or context providers. Resolver failures never fall back to unscoped -operation. Valid scope strings are used exactly as returned, without trimming or normalization. An endpoint without a -resolver remains intentionally unscoped; it must not share session-keyed storage across distinct authorization scopes. +error before accessing snapshots, approval state, or context providers. Resolver failures never fall back to +single-user or unscoped operation. Valid scope strings are used exactly as returned, without trimming or normalization. Use endpoint authentication dependencies to reject unauthorized requests before scope resolution. Existing applications that need time to migrate provider records from raw Thread-id keys can temporarily wrap the @@ -514,8 +557,10 @@ shared multi-tenant deployment, even with a trusted resolver. Keep it disabled w For hosted agents, request Shared State is also available through `AgentSession.state` during that run, whether or not snapshot persistence is configured. Request values are untrusted per-run context: they overlay ordinary restored values, are not passed through typed session restoration, and are excluded from private Session Continuation State. -Keys owned by configured context providers or reserved for approval and message-injection middleware are not copied -into `AgentSession.state`; their server-owned values take precedence over client Shared State. +Keys owned by configured context providers or reserved for approval, message-injection, and standalone FIDES security +middleware are not copied into `AgentSession.state`; their server-owned values take precedence over client Shared State. +A custom FIDES `session_state_key` is protected when its middleware is visible on the agent or its client before the +run; use `SecureAgentConfig` for middleware that a context provider injects later. When scoped snapshots are configured, each category has one State Authority: diff --git a/python/packages/ag-ui/agent_framework_ag_ui/__init__.py b/python/packages/ag-ui/agent_framework_ag_ui/__init__.py index 74dc19935a2..1f87597703b 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/__init__.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/__init__.py @@ -7,7 +7,7 @@ from ._agent import AgentFrameworkAgent from ._client import AGUIChatClient -from ._endpoint import add_agent_framework_fastapi_endpoint +from ._endpoint import AuthorizationScopeResolver, add_agent_framework_fastapi_endpoint from ._event_converters import AGUIEventConverter from ._http_service import AGUIHttpService from ._message_adapters import agent_framework_messages_to_agui_host_history @@ -38,6 +38,7 @@ __all__ = [ "AgentFrameworkAgent", "AgentFrameworkWorkflow", + "AuthorizationScopeResolver", "WorkflowFactory", "add_agent_framework_fastapi_endpoint", "agent_framework_messages_to_agui_host_history", diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py b/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py index b4851854f4e..1d1a523cfb9 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py @@ -36,6 +36,7 @@ Message, SupportsAgentRun, ToolApprovalMiddleware, + ToolApprovalState, WorkflowAgent, ) from agent_framework._middleware import ( @@ -169,6 +170,13 @@ # credentialed call inside another session's sandbox. _RESERVED_SERVICE_SESSION_STATE_KEYS: frozenset[str] = frozenset({"foundry_hosted_agent_session_id"}) +# Session-state key of standalone FIDES security middleware (``agent_framework.security``). It holds the context label, +# hidden variables, and pending policy approvals that policy enforcement trusts, so request Shared State must never +# supply it. The key is spelled literally because importing ``agent_framework.security`` emits its experimental-feature +# warning for every AG-UI user; a test pins it to the core constant. Unlike the provider-owned keys above, it is +# protected only from request state: it must keep persisting in private Session Continuation State. +_FIDES_SESSION_STATE_KEY = "__agent_framework_fides_security__" + @dataclass class _LocalApprovalOccurrence: @@ -1106,6 +1114,10 @@ def _approval_state_tool_call_ids( """Return server-owned approval call ids that are not abandoned.""" call_ids: set[str] = set() for occurrence in approval_state_store.lifecycle.occurrences_for_thread(thread_id=thread_id): + # Terminal occurrences are retained only for replay. Their call ID no longer belongs to an + # open call, so a later turn reusing it can still be abandoned and needs a skipped result. + if occurrence.status.is_terminal: + continue call_ids.add(occurrence.identity.call_id) call_ids.add(occurrence.function_call_id) call_ids.update(occurrence.aliases) @@ -2235,11 +2247,29 @@ def _snapshot_tool_call_ids(message: Mapping[str, Any]) -> list[str]: return call_ids -def _resolved_tool_result_snapshot_messages(resolved_messages: list[Message]) -> dict[str, dict[str, Any]]: - """Build replayable AG-UI tool messages from resolved approval results.""" - result_by_call_id: dict[str, dict[str, Any]] = {} +def _resolved_tool_result_snapshot_messages( + resolved_messages: list[Message], +) -> dict[tuple[str, int], list[dict[str, Any]]]: + """Build replayable AG-UI tool messages from resolved approval results. + + Results are keyed by call id and declaration occurrence: the number of assistant messages + declaring that call id up to the result (at least one). A later turn that reuses a call id + therefore keeps its result apart from the earlier turn's. Distinct function calls inside one + assistant message can also share a call id, so each key holds every result in resolution order. + """ + declarations: dict[str, int] = {} + results_by_occurrence: dict[tuple[str, int], list[dict[str, Any]]] = {} for msg in resolved_messages: - if get_role_value(msg) != "tool": + role = get_role_value(msg) + if role == "assistant": + for call_id in { + str(content.call_id) + for content in msg.contents or [] + if content.type == "function_call" and content.call_id + }: + declarations[call_id] = declarations.get(call_id, 0) + 1 + continue + if role != "tool": continue function_results = [ content for content in msg.contents or [] if content.type == "function_result" and content.call_id @@ -2265,48 +2295,75 @@ def _resolved_tool_result_snapshot_messages(resolved_messages: list[Message]) -> _model_items_for_agui_replay(content, llm_result), ) ) - result_by_call_id[call_id] = snapshot_message - return result_by_call_id + occurrence = (call_id, max(1, declarations.get(call_id, 0))) + results_by_occurrence.setdefault(occurrence, []).append(snapshot_message) + return results_by_occurrence + + +def _snapshot_tool_message_occurrences(snapshot_messages: list[dict[str, Any]]) -> dict[int, tuple[str, int]]: + """Map each snapshot tool message to its call id and declaration occurrence.""" + declarations: dict[str, int] = {} + occurrences: dict[int, tuple[str, int]] = {} + for message in snapshot_messages: + role = normalize_agui_role(message.get("role", "")) + if role == "assistant": + for call_id in set(_snapshot_tool_call_ids(message)): + declarations[call_id] = declarations.get(call_id, 0) + 1 + elif role == "tool": + tool_call_id = message.get("toolCallId") or message.get("tool_call_id") + if tool_call_id: + call_id = str(tool_call_id) + occurrences[id(message)] = (call_id, max(1, declarations.get(call_id, 0))) + return occurrences def _merge_resolved_approval_results_into_snapshot( snapshot_messages: list[dict[str, Any]], resolved_messages: list[Message], ) -> None: - """Persist approval-resolved tool results under their original tool call ids.""" - result_by_call_id = _resolved_tool_result_snapshot_messages(resolved_messages) - if not result_by_call_id: + """Persist approval-resolved tool results under their original tool call ids. + + The results of the n-th assistant message declaring a call id follow the n-th snapshot + assistant message declaring it, in resolution order, so a call id reused by a later turn + stays paired with its own call. Sibling occurrences hidden from the client share the + visible call's id, so one declared call can be followed by several results. + """ + results_by_occurrence = _resolved_tool_result_snapshot_messages(resolved_messages) + if not results_by_occurrence: snapshot_messages[:] = [message for message in snapshot_messages if not message.get("function_approvals")] return + tool_message_occurrences = _snapshot_tool_message_occurrences(snapshot_messages) + replaced_occurrences = set(results_by_occurrence) + retained_host_messages: set[int] = set() for message in snapshot_messages: - if normalize_agui_role(message.get("role", "")) != "tool": + occurrence = tool_message_occurrences.get(id(message)) + if occurrence is None or message.get(_AGUI_MCP_TOOL_RESULT_KEY) is not True: continue - tool_call_id = message.get("toolCallId") or message.get("tool_call_id") - if not tool_call_id or message.get(_AGUI_MCP_TOOL_RESULT_KEY) is not True: - continue - replacement = result_by_call_id.get(str(tool_call_id)) - if replacement is not None and replacement.get(_AGUI_MCP_TOOL_RESULT_KEY) is not True: - result_by_call_id.pop(str(tool_call_id)) + queued_results = results_by_occurrence.get(occurrence) + if queued_results and queued_results[0].get(_AGUI_MCP_TOOL_RESULT_KEY) is not True: + # Keep the host-rendered result already in the snapshot for this occurrence. + queued_results.pop(0) + retained_host_messages.add(id(message)) + declarations: dict[str, int] = {} merged_messages: list[dict[str, Any]] = [] for message in snapshot_messages: if message.get("function_approvals"): continue - role = normalize_agui_role(message.get("role", "")) - if role == "tool": - tool_call_id = message.get("toolCallId") or message.get("tool_call_id") - if tool_call_id and str(tool_call_id) in result_by_call_id: - continue + if id(message) not in retained_host_messages and tool_message_occurrences.get(id(message)) in ( + replaced_occurrences + ): + continue merged_messages.append(message) - if role != "assistant": + if normalize_agui_role(message.get("role", "")) != "assistant": continue - for call_id in _snapshot_tool_call_ids(message): - result_message = result_by_call_id.pop(call_id, None) - if result_message is not None: - merged_messages.append(result_message) + for call_id in dict.fromkeys(_snapshot_tool_call_ids(message)): + declarations[call_id] = declarations.get(call_id, 0) + 1 + merged_messages.extend(results_by_occurrence.pop((call_id, declarations[call_id]), [])) - merged_messages.extend(result_by_call_id.values()) + for queued_results in results_by_occurrence.values(): + merged_messages.extend(queued_results) snapshot_messages[:] = merged_messages @@ -2585,7 +2642,11 @@ def _a2ui_existing_tool_names(agent: SupportsAgentRun, tools: list[Any] | None) def _request_state_protected_keys(agent: SupportsAgentRun) -> set[str]: - """Return session-state namespaces that client Shared State cannot own.""" + """Return session-state namespaces that client Shared State cannot own. + + Names come from optional attributes of ``agent``, which a wrapper may hide, so ``run_agent_stream`` also protects + tool approval state by shape; see :func:`_carries_tool_approval_authority`. + """ context_providers = cast(list[Any], getattr(agent, "context_providers", [])) agent_middleware = categorize_middleware(getattr(agent, "middleware", None))["agent"] return { @@ -2594,10 +2655,66 @@ def _request_state_protected_keys(agent: SupportsAgentRun) -> set[str]: MESSAGE_INJECTION_PENDING_MESSAGES_STATE_KEY, *(provider.source_id for provider in context_providers), *_provider_service_session_state_keys(agent), + *_fides_session_state_keys(agent), *(middleware.source_id for middleware in agent_middleware if isinstance(middleware, ToolApprovalMiddleware)), } +# Field names ToolApprovalMiddleware reads from ``session.state[source_id]`` (``ToolApprovalState``). They are spelled +# literally so this check does not depend on the installed core version; a test pins them to ``ToolApprovalState``. +_TOOL_APPROVAL_STATE_FIELDS: tuple[str, ...] = ("rules", "queued_approval_requests", "collected_approval_responses") + + +def _tool_approval_state_keys(session_state: Mapping[str, Any]) -> set[str]: + """Return trusted session-state keys holding ToolApprovalMiddleware state, whatever ``source_id`` named them. + + The middleware reads either a mapping or a ``ToolApprovalState`` object, so both forms are recognized. + """ + return { + key + for key, value in session_state.items() + if isinstance(value, ToolApprovalState) + or ( + isinstance(value, Mapping) + and any(field in cast(Mapping[str, Any], value) for field in _TOOL_APPROVAL_STATE_FIELDS) + ) + } + + +def _carries_tool_approval_authority(value: Any) -> bool: + """Return whether client state would give ToolApprovalMiddleware approvals the server never recorded. + + ``ToolApprovalMiddleware`` names its state with an application-chosen ``source_id``, so approval authority is + recognized by shape rather than by name. Any non-empty approval list counts whatever its item encoding, because + ``ToolApprovalState`` loads more than JSON objects (for example key/value pair lists), so matching the item + shape would leave gaps. + """ + if not isinstance(value, Mapping): + return False + state = cast(Mapping[str, Any], value) + return any(isinstance(state.get(field), list) and bool(state[field]) for field in _TOOL_APPROVAL_STATE_FIELDS) + + +def _fides_session_state_keys(agent: SupportsAgentRun) -> set[str]: + """Return standalone FIDES session-state keys that client Shared State cannot supply. + + Always includes the default key. A custom ``session_state_key`` is added when its middleware is visible on the + agent or its client before the run; middleware injected later, or hidden behind a wrapper that does not expose its + key, cannot be discovered. + """ + client_middleware = getattr(getattr(agent, "client", None), "function_middleware", None) + function_middleware = categorize_middleware( + getattr(agent, "middleware", None), + cast(Sequence[Any], client_middleware) if isinstance(client_middleware, (list, tuple)) else None, + )["function"] + keys = {_FIDES_SESSION_STATE_KEY} + for middleware in function_middleware: + key = getattr(middleware, "_security_session_state_key", None) + if isinstance(key, str): + keys.add(key) + return keys + + def _provider_service_session_state_keys(agent: SupportsAgentRun) -> set[str]: """Return provider-owned session-state keys that must not cross stateless runs. @@ -3207,7 +3324,24 @@ async def _run_agent_stream( restore_service_session_id=config.use_service_session, excluded_state_keys=set() if config.use_service_session else _provider_service_session_state_keys(agent), ) - protected_session_state_keys = _request_state_protected_keys(agent) + # A wrapper can hide ToolApprovalMiddleware from the agent AG-UI was handed, so its application-chosen source_id + # may be unknown here. Approval authority is therefore also protected by shape: namespaces the server already + # holds, and client values that would supply approvals. + named_protected_keys = _request_state_protected_keys(agent) + authority_state_keys = {key for key, value in flow.current_state.items() if _carries_tool_approval_authority(value)} + protected_session_state_keys = { + *named_protected_keys, + *_tool_approval_state_keys(session.state), + *authority_state_keys, + } + if ignored_authority_keys := authority_state_keys.difference(named_protected_keys): + shown_keys = sorted(ignored_authority_keys)[:5] + omitted = len(ignored_authority_keys) - len(shown_keys) + logger.warning( + "Ignoring client Shared State %s%s: it carries tool approval authority, which is server-owned.", + ", ".join(repr(key[:120]) for key in shown_keys), + f" and {omitted} more" if omitted else "", + ) session.state.update( { key: copy.deepcopy(value) @@ -3611,6 +3745,7 @@ async def save_safe_point_snapshot() -> None: telemetry_context = partial(_use_telemetry_conversation_id, telemetry_conversation_id) stream_completed = False native_approval_flow_result_ids: set[int] = set() + native_approval_results: list[Content] = [] try: with telemetry_context(): for queued_executions in forwarded_executions.values(): @@ -3705,6 +3840,7 @@ async def save_safe_point_snapshot() -> None: and intent.owner is not ApprovalExecutionOwner.HOSTED ): native_approval_result = True + native_approval_results.append(content) suppress_approval_call_end = intent.owner is ApprovalExecutionOwner.LOCAL _replace_approval_contents_with_results( messages, _collect_approval_responses(messages), [[content]] @@ -3972,7 +4108,23 @@ async def save_safe_point_snapshot() -> None: # Feature #5: Suppress intermediate snapshots for predictive tools without confirmation _clean_resolved_approvals_from_snapshot(snapshot_messages, messages) if native_approval_flow_result_ids: - _merge_resolved_approval_results_into_snapshot(snapshot_messages, messages) + # A decision collected in an earlier request has no approval response in this + # request's messages, so its result was never folded into them. Carry it into + # the merge so it is persisted next to its call like the rest of the batch. + # Match by result object, not call id: distinct occurrences can share a call id. + folded_result_ids = { + id(content) + for message in messages + if get_role_value(message) == "tool" + for content in message.contents or [] + if content.type == "function_result" + } + carried_results = [ + Message(role="tool", contents=[result]) + for result in native_approval_results + if id(result) not in folded_result_ids + ] + _merge_resolved_approval_results_into_snapshot(snapshot_messages, [*messages, *carried_results]) flow.tool_results[:] = [ result for result in flow.tool_results if id(result) not in native_approval_flow_result_ids ] diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_endpoint.py b/python/packages/ag-ui/agent_framework_ag_ui/_endpoint.py index 18afc64f923..a31bd200172 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_endpoint.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_endpoint.py @@ -7,15 +7,16 @@ import asyncio import copy import logging -from collections.abc import AsyncGenerator, Sequence +import uuid +from collections.abc import AsyncGenerator, Awaitable, Callable, Sequence from contextlib import suppress from inspect import isawaitable -from typing import Any, cast +from typing import Any, TypeAlias, cast from ag_ui.core import RunErrorEvent from ag_ui.encoder import EventEncoder from agent_framework import CheckpointStorage, SupportsAgentRun, Workflow -from fastapi import FastAPI, HTTPException +from fastapi import FastAPI, HTTPException, Request from fastapi.params import Depends from fastapi.responses import JSONResponse, Response, StreamingResponse @@ -33,9 +34,14 @@ logger = logging.getLogger(__name__) +AuthorizationScopeResolver: TypeAlias = Callable[..., str | Awaitable[str]] +"""FastAPI dependency callable that returns the authenticated AG-UI authorization scope.""" + _DETACHED_READER_START_TIMEOUT_SECONDS = 1.0 _DETACHED_STREAM_QUEUE_SIZE = 16 _KEEPALIVE_COMMENT = "keepalive" +_AUTHORIZATION_SCOPE_STATE_KEY = "_agent_framework_ag_ui_authorization_scope" +_SINGLE_USER_SCOPE_PREFIX = "ag-ui:single-user:" def _get_snapshot_store( @@ -60,7 +66,6 @@ def _configure_snapshot_persistence( protocol_runner: AgentFrameworkAgent | AgentFrameworkWorkflow, *, snapshot_store: AGUIThreadSnapshotStore | None, - snapshot_scope_resolver: SnapshotScopeResolver | None, ) -> None: existing_snapshot_store = _get_snapshot_store(protocol_runner) if snapshot_store is not None: @@ -68,14 +73,6 @@ def _configure_snapshot_persistence( raise ValueError("snapshot_store is already configured on the AG-UI runner.") if existing_snapshot_store is None: _set_snapshot_store(protocol_runner, snapshot_store) - existing_snapshot_store = snapshot_store - - if existing_snapshot_store is not None and snapshot_scope_resolver is None: - raise ValueError( - "snapshot_scope_resolver is required when snapshot_store is configured. " - "AG-UI Thread ids identify threads but do not authorize snapshot access; " - "provide a resolver that returns an explicit Snapshot Scope." - ) def _validate_keepalive_seconds(keepalive_seconds: float | None) -> None: @@ -90,6 +87,39 @@ def _validate_detached_run_options(max_detached_runs: int, detached_run_timeout_ raise ValueError("detached_run_timeout_seconds must be positive.") +def _validate_authorization_scope_configuration( + *, + authorization_scope_resolver: AuthorizationScopeResolver | None, + snapshot_scope_resolver: SnapshotScopeResolver | None, + single_user: bool, +) -> None: + if not isinstance(single_user, bool): + raise TypeError("single_user must be a bool.") + configured_modes = sum( + ( + authorization_scope_resolver is not None, + snapshot_scope_resolver is not None, + single_user, + ) + ) + if configured_modes == 0: + raise ValueError( + "AG-UI endpoint authorization must be explicit. " + "Provide authorization_scope_resolver for authenticated applications, " + "reuse snapshot_scope_resolver for compatibility, or declare single_user=True." + ) + if configured_modes > 1: + raise ValueError( + "Configure exactly one AG-UI authorization mode: authorization_scope_resolver, " + "snapshot_scope_resolver, or single_user=True." + ) + + +def _single_user_scope() -> str: + """Return one opaque scope that stays stable for an endpoint registration.""" + return f"{_SINGLE_USER_SCOPE_PREFIX}{uuid.uuid4().hex}" + + def add_agent_framework_fastapi_endpoint( app: FastAPI, agent: SupportsAgentRun | AgentFrameworkAgent | Workflow | AgentFrameworkWorkflow, @@ -108,6 +138,8 @@ def add_agent_framework_fastapi_endpoint( detached_runs: bool = False, max_detached_runs: int = 32, detached_run_timeout_seconds: float = 3600, + authorization_scope_resolver: AuthorizationScopeResolver | None = None, + single_user: bool = False, ) -> None: """Add an AG-UI endpoint to a FastAPI app. @@ -123,15 +155,16 @@ def add_agent_framework_fastapi_endpoint( tags: OpenAPI tags for endpoint categorization (defaults to ["AG-UI"]) dependencies: Optional FastAPI dependencies for authentication/authorization. These dependencies run before the endpoint handler. Use this to add - authentication checks, rate limiting, or other middleware-like behavior. + authentication checks, rate limiting, or other middleware-like behavior. Their return values do not + establish the AG-UI authorization scope; use authorization_scope_resolver for that. Example: `dependencies=[Depends(verify_api_key)]` - snapshot_store: Optional AG-UI Thread Snapshot store. Snapshot persistence is opt-in and requires an - explicit Snapshot Scope resolver. - snapshot_scope_resolver: Optional resolver for the application-defined Snapshot Scope. Required whenever - a snapshot store is configured because an AG-UI Thread id is not an authorization boundary. Also scopes - the internal Agent Session id used by context providers and in-memory workflow_factory instances when - provided without a snapshot store. A configured resolver must return a non-empty string derived from - authorized request context; invalid results fail the request before accessing state or invoking the runner. + snapshot_store: Optional AG-UI Thread Snapshot store. Snapshot persistence is opt-in and requires either + an authorization resolver, the compatible Snapshot Scope resolver, or explicit single-user mode. + snapshot_scope_resolver: Compatible request-body resolver for the application-defined Snapshot Scope. Prefer + authorization_scope_resolver for new FastAPI applications because it can consume authenticated dependency + results. This resolver also scopes internal Agent Sessions, in-memory workflow_factory instances, and + approval state. It must return a non-empty string derived from authorized request context; invalid results + fail the request before accessing state or invoking the runner. checkpoint_storage: Optional workflow checkpoint storage, applied when the endpoint exposes a workflow. When provided, each run creates a checkpoint at the end of every superstep, and a run may resume from a persisted checkpoint by supplying its id in the AG-UI forwarded props @@ -152,6 +185,16 @@ def add_agent_framework_fastapi_endpoint( Additional requests receive HTTP 503 until capacity is released. detached_run_timeout_seconds: Maximum time a producer may remain active after its SSE reader disconnects or never starts. Defaults to 3600 seconds. Expired producers are cancelled and release endpoint capacity. + authorization_scope_resolver: Optional FastAPI dependency callable that returns a non-empty authorization + scope derived from authenticated request context. The callable may declare normal FastAPI dependencies, + headers, security schemes, or the current Request. Its result scopes snapshots, internal Agent Sessions, + workflow instances and checkpoints, detached-run admission, and server-side approval state. + single_user: Explicitly declare that every caller of this endpoint belongs to one authorization principal. + The endpoint receives one opaque scope that remains stable for that registration and separates equal route + paths registered by other applications. Use an explicit resolver when scope continuity must survive process + restarts or when storage is shared beyond one registration. A single-user application can return its own + stable application scope from authorization_scope_resolver. Never enable this mode for callers with distinct + authorization. """ _validate_keepalive_seconds(keepalive_seconds) _validate_detached_run_options(max_detached_runs, detached_run_timeout_seconds) @@ -174,6 +217,12 @@ def add_agent_framework_fastapi_endpoint( else: raise TypeError("agent must be SupportsAgentRun, Workflow, AgentFrameworkAgent, or AgentFrameworkWorkflow.") + _validate_authorization_scope_configuration( + authorization_scope_resolver=authorization_scope_resolver, + snapshot_scope_resolver=snapshot_scope_resolver, + single_user=single_user, + ) + if checkpoint_storage is not None: if not isinstance(protocol_runner, AgentFrameworkWorkflow): raise ValueError("checkpoint_storage is only supported when the endpoint exposes a workflow.") @@ -189,12 +238,28 @@ def add_agent_framework_fastapi_endpoint( _configure_snapshot_persistence( protocol_runner, snapshot_store=snapshot_store, - snapshot_scope_resolver=snapshot_scope_resolver, ) background_tasks: set[asyncio.Task[Any]] = set() producer_tasks: set[asyncio.Task[None]] = set() active_runs: dict[tuple[str | None, str], asyncio.Task[None]] = {} + route_dependencies = list(dependencies or ()) + single_user_scope = _single_user_scope() if single_user else None + + if authorization_scope_resolver is not None: + + async def capture_authorization_scope( + request: Request, + resolved_scope: Any = Depends(authorization_scope_resolver), + ) -> None: + if isawaitable(resolved_scope): + resolved_scope = await resolved_scope + if not isinstance(resolved_scope, str) or not resolved_scope: + logger.error("authorization_scope_resolver must return a non-empty string.") + raise HTTPException(status_code=500, detail="An internal error has occurred.") + setattr(request.state, _AUTHORIZATION_SCOPE_STATE_KEY, resolved_scope) + + route_dependencies.append(Depends(capture_authorization_scope)) def retain_background_task(task: asyncio.Task[Any]) -> None: background_tasks.add(task) @@ -213,8 +278,8 @@ def task_done(completed: asyncio.Task[Any]) -> None: task.add_done_callback(task_done) - @app.post(path, tags=tags or ["AG-UI"], dependencies=dependencies, response_model=None) # type: ignore[arg-type] - async def agent_endpoint(request_body: AGUIRequest) -> Response: + @app.post(path, tags=tags or ["AG-UI"], dependencies=route_dependencies, response_model=None) # type: ignore[arg-type] + async def agent_endpoint(request_body: AGUIRequest, request: Request) -> Response: """Handle AG-UI agent requests. Note: Function is accessed via FastAPI's decorator registration, @@ -224,13 +289,19 @@ async def agent_endpoint(request_body: AGUIRequest) -> Response: input_data = request_body.model_dump(exclude_none=True) snapshot_persistence_active = _get_snapshot_store(protocol_runner) is not None snapshot_scope: str | None = None - if snapshot_scope_resolver is not None: + if authorization_scope_resolver is not None: + snapshot_scope = cast(str, getattr(request.state, _AUTHORIZATION_SCOPE_STATE_KEY)) + elif snapshot_scope_resolver is not None: resolved_scope = snapshot_scope_resolver(request_body) if isawaitable(resolved_scope): resolved_scope = await resolved_scope if not isinstance(resolved_scope, str) or not resolved_scope: raise ValueError("snapshot_scope_resolver must return a non-empty string.") snapshot_scope = resolved_scope + elif single_user: + snapshot_scope = single_user_scope + + if snapshot_scope is not None: input_data[_APPROVAL_SCOPE_INPUT_KEY] = snapshot_scope input_data[_SNAPSHOT_SCOPE_INPUT_KEY] = snapshot_scope if default_state: diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_message_adapters.py b/python/packages/ag-ui/agent_framework_ag_ui/_message_adapters.py index 0bd567d162d..bc3bb38bcf4 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_message_adapters.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_message_adapters.py @@ -9,6 +9,7 @@ import copy import json import logging +from collections import Counter from typing import Any, cast, get_args from urllib.parse import urlsplit @@ -59,7 +60,8 @@ def _append_synthetic_tool_results( excluded_tool_call_ids: set[str] | None = None, ) -> None: excluded_tool_call_ids = excluded_tool_call_ids or set() - for pending_call_id in pending_tool_call_ids: + # A call ID awaiting several occurrences still gets a single synthetic result. + for pending_call_id in dict.fromkeys(pending_tool_call_ids): if pending_call_id in excluded_tool_call_ids: logger.info("Not injecting synthetic tool result for non-abandoned call_id=%s", pending_call_id) continue @@ -77,26 +79,29 @@ def _append_synthetic_tool_results( ) -def _ordered_unique_tool_call_ids(contents: list[Content]) -> list[str]: - tool_ids: list[str] = [] - seen: set[str] = set() - for content in contents: - if content.type != "function_call" or not content.call_id: - continue - tool_id = str(content.call_id) - if tool_id in seen: - continue - tool_ids.append(tool_id) - seen.add(tool_id) - return tool_ids +def _tool_call_ids_per_occurrence(contents: list[Content]) -> list[str]: + """Return one call ID per function call, so a call ID reused by several occurrences awaits each result.""" + return [str(content.call_id) for content in contents if content.type == "function_call" and content.call_id] + +def _answered_call_ids_from(messages: list[Message], start: int) -> set[str]: + """Return call IDs that get a function result from ``start`` on, before the call ID is declared again. -def _function_result_call_ids(messages: list[Message]) -> set[str]: + A result from an earlier turn belongs to that turn's occurrence, and a result after the call ID + is declared again belongs to the later occurrence, so neither answers the pending occurrence. + """ result_ids: set[str] = set() - for msg in messages: + redeclared_ids: set[str] = set() + for msg in messages[start:]: + is_assistant = get_role_value(msg) == "assistant" for content in msg.contents or []: - if content.type == "function_result" and content.call_id: - result_ids.add(str(content.call_id)) + if not content.call_id: + continue + call_id = str(content.call_id) + if content.type == "function_call" and is_assistant: + redeclared_ids.add(call_id) + elif content.type == "function_result" and call_id not in redeclared_ids: + result_ids.add(call_id) return result_ids @@ -109,9 +114,13 @@ def _sanitize_tool_history( sanitized: list[Message] = [] pending_tool_call_ids: list[str] | None = None pending_confirm_changes_id: str | None = None - non_abandoned_tool_call_ids = set(protected_tool_call_ids or set()) | _function_result_call_ids(messages) + protected_ids = set(protected_tool_call_ids or set()) - for msg in messages: + def non_abandoned_tool_call_ids(start: int) -> set[str]: + """Protected calls and calls answered from ``start`` on; earlier turns do not count.""" + return protected_ids | _answered_call_ids_from(messages, start) + + for idx, msg in enumerate(messages): role_value = get_role_value(msg) if role_value == "assistant": @@ -124,12 +133,12 @@ def _sanitize_tool_history( sanitized, pending_tool_call_ids, "Tool execution skipped - assistant continued before the tool result was available.", - excluded_tool_call_ids=non_abandoned_tool_call_ids, + excluded_tool_call_ids=non_abandoned_tool_call_ids(idx), ) pending_tool_call_ids = None pending_confirm_changes_id = None - tool_ids = _ordered_unique_tool_call_ids(msg.contents or []) + tool_ids = _tool_call_ids_per_occurrence(msg.contents or []) confirm_changes_call = None for content in msg.contents or []: if content.type == "function_call" and content.name == "confirm_changes": @@ -251,7 +260,7 @@ def _sanitize_tool_history( sanitized, pending_tool_call_ids, "Tool execution skipped - user provided follow-up message", - excluded_tool_call_ids=non_abandoned_tool_call_ids, + excluded_tool_call_ids=non_abandoned_tool_call_ids(idx + 1), ) pending_tool_call_ids = None pending_confirm_changes_id = None @@ -269,12 +278,11 @@ def _sanitize_tool_history( call_id = str(content.call_id) if call_id in pending_tool_call_ids: keep = True - # Remove the call_id from pending since we now have its result. + # Remove one pending occurrence of the call_id since we now have its result. # This prevents duplicate synthetic "skipped" results from being - # injected when a user message arrives later. - pending_tool_call_ids = [ - pending_id for pending_id in pending_tool_call_ids if pending_id != call_id - ] + # injected when a user message arrives later, while later occurrences + # that reuse the call_id still wait for their own results. + pending_tool_call_ids.remove(call_id) if call_id == pending_confirm_changes_id: pending_confirm_changes_id = None break @@ -292,7 +300,7 @@ def _sanitize_tool_history( sanitized, pending_tool_call_ids, "Tool execution skipped - conversation continued before the tool result was available.", - excluded_tool_call_ids=non_abandoned_tool_call_ids, + excluded_tool_call_ids=non_abandoned_tool_call_ids(idx), ) sanitized.append(msg) @@ -308,7 +316,7 @@ def _sanitize_tool_history( sanitized, pending_tool_call_ids, "Tool execution skipped - conversation ended before the tool result was available.", - excluded_tool_call_ids=non_abandoned_tool_call_ids, + excluded_tool_call_ids=non_abandoned_tool_call_ids(len(messages)), ) return sanitized @@ -318,37 +326,48 @@ def _deduplicate_messages(messages: list[Message]) -> list[Message]: """Remove duplicate messages while preserving order.""" seen_keys: dict[Any, int] = {} unique_messages: list[Message] = [] + # A provider call ID can be reused by several function calls, in one assistant message or in a + # later turn. Each declared occurrence opens one result slot, so every occurrence keeps its own + # result while replayed results beyond the open slots are dropped. + open_result_slots: Counter[str] = Counter() + declared_call_ids: set[str] = set() + tool_result_indexes: dict[str, list[int]] = {} for idx, msg in enumerate(messages): role_value = get_role_value(msg) if role_value == "tool" and msg.contents and msg.contents[0].type == "function_result": call_id = str(msg.contents[0].call_id) - key: Any = (role_value, call_id) - - if key in seen_keys: - existing_idx = seen_keys[key] - existing_msg = unique_messages[existing_idx] - - existing_empty = True - if existing_msg.contents and existing_msg.contents[0].type == "function_result": - existing_empty = not _function_result_has_output(existing_msg.contents[0]) - - if existing_empty and _function_result_has_output(msg.contents[0]): - logger.info(f"Replacing empty tool result at index {existing_idx} with data from index {idx}") - unique_messages[existing_idx] = msg + kept_indexes = tool_result_indexes.setdefault(call_id, []) + + if open_result_slots[call_id] > 0: + open_result_slots[call_id] -= 1 + elif call_id in declared_call_ids or kept_indexes: + new_has_output = _function_result_has_output(msg.contents[0]) + for existing_idx in kept_indexes: + existing_msg = unique_messages[existing_idx] + existing_empty = True + if existing_msg.contents and existing_msg.contents[0].type == "function_result": + existing_empty = not _function_result_has_output(existing_msg.contents[0]) + + if existing_empty and new_has_output: + logger.info(f"Replacing empty tool result at index {existing_idx} with data from index {idx}") + unique_messages[existing_idx] = msg + break else: logger.info(f"Skipping duplicate tool result at index {idx}: call_id={call_id}") continue - seen_keys[key] = len(unique_messages) + kept_indexes.append(len(unique_messages)) unique_messages.append(msg) elif role_value == "assistant" and msg.contents and any(c.type == "function_call" for c in msg.contents): tool_call_ids = tuple( sorted(str(c.call_id) for c in msg.contents if c.type == "function_call" and c.call_id) ) - key = (role_value, tool_call_ids) + # As for other messages, a shared message_id marks a replay of the same message, while a + # later turn reusing the same call IDs arrives as a distinct message. + key: Any = ("id", msg.message_id) if msg.message_id else (role_value, tool_call_ids) if key in seen_keys: logger.info(f"Skipping duplicate assistant tool call at index {idx}") @@ -356,6 +375,8 @@ def _deduplicate_messages(messages: list[Message]) -> list[Message]: seen_keys[key] = len(unique_messages) unique_messages.append(msg) + open_result_slots.update(tool_call_ids) + declared_call_ids.update(tool_call_ids) else: # Use message_id for deduplication when available — two messages with the diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py b/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py index cd6f0479690..9cecd13fa4b 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py @@ -552,6 +552,9 @@ class FlowState: waiting_for_approval: bool = False current_state: dict[str, Any] = field(default_factory=dict) # pyright: ignore[reportUnknownVariableType] accumulated_text: str = "" + # Number of text deltas emitted for the currently open message. Used to tell a + # genuine repeated token apart from a full-message replay chunk (#9336). + text_delta_count: int = 0 pending_tool_calls: list[dict[str, Any]] = field(default_factory=list) # pyright: ignore[reportUnknownVariableType] tool_calls_by_id: dict[str, dict[str, Any]] = field(default_factory=dict) # pyright: ignore[reportUnknownVariableType] tool_results: list[dict[str, Any]] = field(default_factory=list) # pyright: ignore[reportUnknownVariableType] @@ -656,10 +659,18 @@ def _emit_text(content: Content, flow: FlowState, skip_text: bool = False) -> li if not flow.message_id: flow.message_id = generate_event_id() flow.accumulated_text = "" + flow.text_delta_count = 0 _open_text_segment(flow, flow.message_id) events.append(TextMessageStartEvent(message_id=flow.message_id, role="assistant")) - elif flow.accumulated_text and content.text == flow.accumulated_text: + elif flow.accumulated_text and content.text == flow.accumulated_text and ( + flow.text_delta_count > 1 + ): # Guard against full-message replay chunks that can appear after streaming deltas. + # A duplicate equal to the whole accumulated text is only a safe replay signal when + # the text already streamed in more than one chunk. With a single prior chunk the + # duplicate is indistinguishable from a genuine repeated token, annotated or not, + # so the one-chunk policy stays the same as the unannotated path: keep the text + # (issue #9336) and let the annotation emission reconcile occurrences. logger.debug("Skipping duplicate full-text delta for message_id=%s", flow.message_id) if not content.annotations: return [] @@ -675,6 +686,7 @@ def _emit_text(content: Content, flow: FlowState, skip_text: bool = False) -> li ): flow.message_id = generate_event_id() flow.accumulated_text = "" + flow.text_delta_count = 0 events.append(TextMessageEndEvent(message_id=current_message_id)) events.append(TextMessageStartEvent(message_id=flow.message_id, role="assistant")) @@ -689,6 +701,7 @@ def _emit_text(content: Content, flow: FlowState, skip_text: bool = False) -> li if content.text and not duplicate_text: events.append(TextMessageContentEvent(message_id=flow.message_id, delta=content.text)) flow.accumulated_text += content.text + flow.text_delta_count += 1 segment["text"] = flow.accumulated_text if content.annotations: annotations = cast( @@ -936,6 +949,7 @@ def _emit_tool_result_common( events.append(TextMessageEndEvent(message_id=flow.message_id)) flow.message_id = None flow.accumulated_text = "" + flow.text_delta_count = 0 return events diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_utils.py b/python/packages/ag-ui/agent_framework_ag_ui/_utils.py index c33668222d1..d518018d87f 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_utils.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_utils.py @@ -12,8 +12,7 @@ import ag_ui.core as _agui_core from agent_framework import AgentResponseUpdate, ChatResponseUpdate, Content, FunctionTool -from agent_framework import _mcp as _core_mcp # pyright: ignore[reportPrivateUsage] -from agent_framework._serialization import make_json_safe # pyright: ignore[reportPrivateUsage] +from agent_framework._serialization import make_json_safe _AGUI_PROTOCOL_VERSION: str | None = getattr(_agui_core, "PROTOCOL_VERSION", None) """The AG-UI protocol version the installed ``ag-ui-protocol`` speaks, or ``None`` before 1.0. @@ -28,7 +27,7 @@ def _mcp_tool_result_host_payload_key(core_mcp: Any) -> str: return getattr(core_mcp, "_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY", "_mcp_tool_result_host_payload") -_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY = _mcp_tool_result_host_payload_key(_core_mcp) +_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY = _mcp_tool_result_host_payload_key(None) _AGUI_TOOL_RESULT_MODEL_CONTENT_KEY = "_agentFrameworkModelContent" _AGUI_MCP_TOOL_RESULT_KEY = "_agentFrameworkMcpResult" _AGUI_TOOL_RESULT_HOST_PAYLOAD_KEY = "_agentFrameworkHostPayload" diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_workflow.py b/python/packages/ag-ui/agent_framework_ag_ui/_workflow.py index b5afbba5769..cc1c88fad95 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_workflow.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_workflow.py @@ -35,7 +35,11 @@ from pydantic import BaseModel from ._feature_usage import FeatureIndex -from ._message_adapters import agent_framework_messages_to_agui, agui_messages_to_snapshot_format +from ._message_adapters import ( + agent_framework_messages_to_agui, + agui_messages_to_snapshot_format, + normalize_agui_input_messages, +) from ._run_common import ( _build_run_started_event, _cancelled_resume_interrupt_ids, @@ -62,7 +66,11 @@ generate_event_id, make_json_safe, ) -from ._workflow_run import _pending_request_events, run_workflow_stream # pyright: ignore[reportPrivateUsage] +from ._workflow_run import ( # pyright: ignore[reportPrivateUsage] + _extract_responses_from_messages, + _pending_request_events, + run_workflow_stream, +) logger = logging.getLogger(__name__) @@ -233,6 +241,12 @@ def _checkpoint_id_from_input(input_data: dict[str, Any]) -> str | None: return str(checkpoint_id) +def _message_response_ids(raw_messages: list[dict[str, Any]]) -> set[str]: + """Return the request ids that tool or approval-response messages in a request answer.""" + messages, _ = normalize_agui_input_messages(raw_messages, sanitize_tool_history=False) + return set(_extract_responses_from_messages(messages)) + + def _checkpoint_request_owner(metadata: dict[str, Any]) -> WorkflowRequestOwner | None: """Read AG-UI workflow request ownership from checkpoint metadata.""" raw_owner = metadata.get(_CHECKPOINT_REQUEST_OWNER_KEY) @@ -247,6 +261,15 @@ def _checkpoint_request_owner(metadata: dict[str, Any]) -> WorkflowRequestOwner return snapshot_scope, thread_id +def _checkpoint_generated_thread_id(metadata: dict[str, Any]) -> str | None: + """Read the generated thread id recorded for a checkpoint whose run omitted ``threadId``.""" + raw_owner = metadata.get(_CHECKPOINT_REQUEST_OWNER_KEY) + if not isinstance(raw_owner, dict): + return None + generated_thread_id = raw_owner.get("generated_thread_id") + return generated_thread_id if isinstance(generated_thread_id, str) else None + + def _workflow_checkpoint_storage(workflow: Workflow) -> CheckpointStorage | None: """Return the workflow's build-time checkpoint storage.""" runner = getattr(workflow, "_runner", None) @@ -259,21 +282,33 @@ def _workflow_checkpoint_storage(workflow: Workflow) -> CheckpointStorage | None class _OwnedWorkflowCheckpointStorage: """Attach one AG-UI request owner to checkpoints in their original save.""" - def __init__(self, storage: CheckpointStorage, owner: WorkflowRequestOwner) -> None: + def __init__( + self, storage: CheckpointStorage, owner: WorkflowRequestOwner, generated_thread_id: str | None = None + ) -> None: self._storage = storage self._owner = owner + self._generated_thread_id = generated_thread_id def _owns(self, checkpoint: WorkflowCheckpoint) -> bool: checkpoint_owner = _checkpoint_request_owner(checkpoint.metadata) - return checkpoint_owner == self._owner or (checkpoint_owner is None and self._owner == (None, None)) + if checkpoint_owner == self._owner or (checkpoint_owner is None and self._owner == (None, None)): + return True + # A run that omitted threadId also records the id it reported, so a continuation can echo that id. + generated_thread_id = _checkpoint_generated_thread_id(checkpoint.metadata) + return ( + checkpoint_owner is not None + and checkpoint_owner[1] is None + and generated_thread_id is not None + and self._owner == (checkpoint_owner[0], generated_thread_id) + ) async def save(self, checkpoint: WorkflowCheckpoint) -> CheckpointID: """Save a checkpoint with ownership for any pending request occurrences.""" checkpoint.metadata = dict(checkpoint.metadata) - checkpoint.metadata[_CHECKPOINT_REQUEST_OWNER_KEY] = { - "snapshot_scope": self._owner[0], - "thread_id": self._owner[1], - } + owner_metadata: dict[str, str | None] = {"snapshot_scope": self._owner[0], "thread_id": self._owner[1]} + if self._generated_thread_id is not None: + owner_metadata["generated_thread_id"] = self._generated_thread_id + checkpoint.metadata[_CHECKPOINT_REQUEST_OWNER_KEY] = owner_metadata return await self._storage.save(checkpoint) async def load(self, checkpoint_id: CheckpointID) -> WorkflowCheckpoint: @@ -672,13 +707,16 @@ def __init__( self.snapshot_store = snapshot_store self.checkpoint_storage = checkpoint_storage + @staticmethod + def _supplied_thread_id_from_input(input_data: dict[str, Any]) -> str | None: + """Return the client-supplied thread id, treating an empty value as omitted.""" + thread_id = input_data.get("thread_id") or input_data.get("threadId") + return str(thread_id) if thread_id else None + @staticmethod def _thread_id_from_input(input_data: dict[str, Any]) -> str: """Resolve a stable thread id from AG-UI input payload.""" - thread_id = input_data.get("thread_id") or input_data.get("threadId") - if thread_id is not None: - return str(thread_id) - return str(uuid.uuid4()) + return AgentFrameworkWorkflow._supplied_thread_id_from_input(input_data) or str(uuid.uuid4()) def _resolve_workflow(self, thread_id: str, snapshot_scope: str | None = None) -> Workflow: """Get the workflow instance for the current run.""" @@ -751,17 +789,39 @@ async def run(self, input_data: dict[str, Any]) -> AsyncGenerator[BaseEvent]: checkpoint_id = _checkpoint_id_from_input(input_data) - supplied_thread_id = input_data.get("thread_id") or input_data.get("threadId") - request_owner = (snapshot_scope, str(supplied_thread_id) if supplied_thread_id is not None else None) + supplied_thread_id = self._supplied_thread_id_from_input(input_data) + request_owner = (snapshot_scope, supplied_thread_id) + # Live interrupts bind to the resolved thread id, including a generated one that RUN_STARTED reports, so a + # continuation must echo it. Checkpoint ownership keeps binding only client-supplied ids and records a + # generated id as an alias, which keeps legacy id-less checkpoint restores working. + live_owner = (snapshot_scope, thread_id) resume_interrupt_ids = { str(interrupt["id"]) for interrupt in _normalize_resume_interrupts(resume_payload) if interrupt.get("id") is not None } + if ( + self.workflow is None + and checkpoint_id is None + and supplied_thread_id is None + and (resume_interrupt_ids or _message_response_ids(raw_messages)) + ): + # A factory run that omits threadId reports a new generated id, so nothing can be pending on it and a + # resume entry, tool result, or approval response cannot continue anything. + yield _build_run_started_event(run_id, thread_id) + yield RunErrorEvent( + message="No pending interrupt found for this AG-UI thread.", + code="WORKFLOW_RESUME_NOT_FOUND", + ) + return workflow = self._resolve_workflow(thread_id, snapshot_scope) checkpoint_storage = self.checkpoint_storage or _workflow_checkpoint_storage(workflow) owned_checkpoint_storage = ( - _OwnedWorkflowCheckpointStorage(checkpoint_storage, request_owner) + _OwnedWorkflowCheckpointStorage( + checkpoint_storage, + request_owner, + generated_thread_id=thread_id if supplied_thread_id is None else None, + ) if checkpoint_storage is not None else None ) @@ -775,7 +835,7 @@ async def run(self, input_data: dict[str, Any]) -> AsyncGenerator[BaseEvent]: if self.workflow is not None and checkpoint_id is None: for request_event in live_pending_events.values(): owner = getattr(request_event, _REQUEST_OWNER_ATTRIBUTE, None) - if owner != request_owner and (owner is not None or request_owner != (None, None)): + if owner != live_owner and (owner is not None or request_owner != (None, None)): yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent( message="No pending interrupt found for this AG-UI thread.", @@ -810,7 +870,7 @@ async def run(self, input_data: dict[str, Any]) -> AsyncGenerator[BaseEvent]: for interrupt_id in resume_interrupt_ids: request_event = live_pending_events.get(interrupt_id) owner = getattr(request_event, _REQUEST_OWNER_ATTRIBUTE, None) - if owner != request_owner and (owner is not None or request_owner != (None, None)): + if owner != live_owner and (owner is not None or request_owner != (None, None)): yield _build_run_started_event(run_id, thread_id) yield RunErrorEvent( message=f"No pending interrupt found for resume interruptId '{interrupt_id}'.", @@ -889,6 +949,7 @@ def append_conversational_responses(values: list[Any]) -> None: checkpoint_id=checkpoint_id, pending_request_events=effective_pending_events, on_conversational_responses=append_conversational_responses, + resolved_thread_id=thread_id, ): if snapshot_builder is not None: snapshot_builder.observe(event) @@ -900,7 +961,7 @@ def append_conversational_responses(values: list[Any]) -> None: interrupt_id = str(event.tool_call_id) pending_event = (await _pending_request_events(workflow)).get(interrupt_id) if pending_event is not None and getattr(pending_event, _REQUEST_OWNER_ATTRIBUTE, None) is None: - setattr(pending_event, _REQUEST_OWNER_ATTRIBUTE, request_owner) + setattr(pending_event, _REQUEST_OWNER_ATTRIBUTE, live_owner) if isinstance(event, RunErrorEvent): run_error_emitted = True if getattr(event, "code", None) == "WORKFLOW_RESUME_CANCELLED": diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_workflow_run.py b/python/packages/ag-ui/agent_framework_ag_ui/_workflow_run.py index 6ba64fcf11d..33167eee194 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_workflow_run.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_workflow_run.py @@ -1149,6 +1149,7 @@ async def run_workflow_stream( checkpoint_id: str | None = None, pending_request_events: dict[str, Any] | None = None, on_conversational_responses: Callable[[list[Any]], None] | None = None, + resolved_thread_id: str | None = None, ) -> AsyncGenerator[BaseEvent]: """Run a Workflow and emit AG-UI protocol events. @@ -1168,9 +1169,11 @@ async def run_workflow_stream( start-executor message, so resume stays consistent with the core API. pending_request_events: Optional effective pending requests already resolved by the wrapper. on_conversational_responses: Optional callback for validated non-control responses. + resolved_thread_id: Optional thread id already resolved by the caller, reported in protocol events instead of + generating a new one when the request omits it. """ supplied_thread_id = input_data.get("thread_id") or input_data.get("threadId") - thread_id = supplied_thread_id or str(uuid.uuid4()) + thread_id = resolved_thread_id or supplied_thread_id or str(uuid.uuid4()) run_id = input_data.get("run_id") or input_data.get("runId") or str(uuid.uuid4()) available_interrupts = input_data.get("available_interrupts") or input_data.get("availableInterrupts") if available_interrupts: @@ -1316,6 +1319,7 @@ def _drain_open_message() -> list[TextMessageEndEvent]: current_message_id = flow.message_id flow.message_id = None flow.accumulated_text = "" + flow.text_delta_count = 0 return [TextMessageEndEvent(message_id=current_message_id)] def _drain_open_tool_calls() -> list[ToolCallEndEvent]: diff --git a/python/packages/ag-ui/agent_framework_ag_ui_examples/README.md b/python/packages/ag-ui/agent_framework_ag_ui_examples/README.md index 69e85b3b5ea..e90ac2d0dc1 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui_examples/README.md +++ b/python/packages/ag-ui/agent_framework_ag_ui_examples/README.md @@ -23,13 +23,16 @@ from agent_framework_ag_ui_examples.agents import simple_agent, weather_agent app = FastAPI() +# These are local single-user examples. For production, replace single_user=True +# with an authorization_scope_resolver backed by authenticated request context. + # Option 1: Use Azure OpenAI azure_client = OpenAIChatCompletionClient(model="gpt-4") -add_agent_framework_fastapi_endpoint(app, simple_agent(azure_client), "/chat") +add_agent_framework_fastapi_endpoint(app, simple_agent(azure_client), "/chat", single_user=True) # Option 2: Use OpenAI openai_client = OpenAIChatClient(model="gpt-4o") -add_agent_framework_fastapi_endpoint(app, weather_agent(openai_client), "/weather") +add_agent_framework_fastapi_endpoint(app, weather_agent(openai_client), "/weather", single_user=True) # Run with: uvicorn main:app --reload ``` @@ -51,7 +54,9 @@ agent = Agent( # Create FastAPI app and add AG-UI endpoint app = FastAPI() -add_agent_framework_fastapi_endpoint(app, agent, "/agent") +# Local example only. For production, replace single_user=True with an +# authorization_scope_resolver backed by authenticated request context. +add_agent_framework_fastapi_endpoint(app, agent, "/agent", single_user=True) # Run with: uvicorn main:app --reload ``` @@ -179,15 +184,37 @@ app = FastAPI(title="AG-UI Examples") # Create a chat client (shared across all agents, or create individual ones) client = OpenAIChatCompletionClient(model="gpt-4") -# Add all example endpoints -add_agent_framework_fastapi_endpoint(app, simple_agent(client), "/agentic_chat") -add_agent_framework_fastapi_endpoint(app, weather_agent(client), "/backend_tool_rendering") -add_agent_framework_fastapi_endpoint(app, human_in_the_loop_agent(client), "/human_in_the_loop") -add_agent_framework_fastapi_endpoint(app, task_steps_agent_wrapped(client), "/agentic_generative_ui") # type: ignore[arg-type] -add_agent_framework_fastapi_endpoint(app, ui_generator_agent(client), "/tool_based_generative_ui") -add_agent_framework_fastapi_endpoint(app, recipe_agent(client), "/shared_state") -add_agent_framework_fastapi_endpoint(app, document_writer_agent(client), "/predictive_state_updates") -add_agent_framework_fastapi_endpoint(app, subgraphs_agent(), "/subgraphs") +# Add local single-user example endpoints. For production, replace +# single_user=True with an authorization_scope_resolver backed by authenticated +# request context. +add_agent_framework_fastapi_endpoint(app, simple_agent(client), "/agentic_chat", single_user=True) +add_agent_framework_fastapi_endpoint(app, weather_agent(client), "/backend_tool_rendering", single_user=True) +add_agent_framework_fastapi_endpoint( + app, + human_in_the_loop_agent(client), + "/human_in_the_loop", + single_user=True, +) +add_agent_framework_fastapi_endpoint( + app, + task_steps_agent_wrapped(client), + "/agentic_generative_ui", + single_user=True, +) # type: ignore[arg-type] +add_agent_framework_fastapi_endpoint( + app, + ui_generator_agent(client), + "/tool_based_generative_ui", + single_user=True, +) +add_agent_framework_fastapi_endpoint(app, recipe_agent(client), "/shared_state", single_user=True) +add_agent_framework_fastapi_endpoint( + app, + document_writer_agent(client), + "/predictive_state_updates", + single_user=True, +) +add_agent_framework_fastapi_endpoint(app, subgraphs_agent(), "/subgraphs", single_user=True) ``` ## Architecture diff --git a/python/packages/ag-ui/agent_framework_ag_ui_examples/server/api/backend_tool_rendering.py b/python/packages/ag-ui/agent_framework_ag_ui_examples/server/api/backend_tool_rendering.py index 7db6ff5278a..388b9864cce 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui_examples/server/api/backend_tool_rendering.py +++ b/python/packages/ag-ui/agent_framework_ag_ui_examples/server/api/backend_tool_rendering.py @@ -25,4 +25,7 @@ def register_backend_tool_rendering(app: FastAPI) -> None: app, weather_agent(client), "/backend_tool_rendering", + # Local example only. For production, remove (or set False) and provide + # authorization_scope_resolver backed by authenticated request context. + single_user=True, ) diff --git a/python/packages/ag-ui/agent_framework_ag_ui_examples/server/main.py b/python/packages/ag-ui/agent_framework_ag_ui_examples/server/main.py index 82526f2ed0e..06e289d00d2 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui_examples/server/main.py +++ b/python/packages/ag-ui/agent_framework_ag_ui_examples/server/main.py @@ -12,7 +12,7 @@ import uvicorn from agent_framework import ChatOptions from agent_framework._clients import SupportsChatGetResponse -from agent_framework.ag_ui import add_agent_framework_fastapi_endpoint +from agent_framework.ag_ui import add_agent_framework_fastapi_endpoint as _add_agent_framework_fastapi_endpoint from agent_framework.azure import AzureOpenAIChatClient from agent_framework.openai import OpenAIChatCompletionClient from fastapi import FastAPI @@ -114,6 +114,17 @@ def _default_shared_client() -> SupportsChatGetResponse[ChatOptions]: client: SupportsChatGetResponse[ChatOptions] = _default_shared_client() + +def add_agent_framework_fastapi_endpoint(*args: Any, **kwargs: Any) -> None: + """Register local example endpoints under one explicit authorization principal. + + Production deployments must remove this default and pass an + authorization_scope_resolver backed by authenticated request context. + """ + kwargs.setdefault("single_user", True) + _add_agent_framework_fastapi_endpoint(*args, **kwargs) + + # Agentic Chat - basic chat agent add_agent_framework_fastapi_endpoint( app=app, diff --git a/python/packages/ag-ui/getting_started/README.md b/python/packages/ag-ui/getting_started/README.md index 142f002d6ec..aa8cd3e9e7c 100644 --- a/python/packages/ag-ui/getting_started/README.md +++ b/python/packages/ag-ui/getting_started/README.md @@ -241,8 +241,10 @@ agent = Agent( # Create FastAPI app app = FastAPI(title="AG-UI Server") -# Register the AG-UI endpoint -add_agent_framework_fastapi_endpoint(app, agent, "/") +# Register the local single-user AG-UI endpoint. +# For production, replace single_user=True with an authorization_scope_resolver +# backed by authenticated request context. +add_agent_framework_fastapi_endpoint(app, agent, "/", single_user=True) if __name__ == "__main__": import uvicorn diff --git a/python/packages/ag-ui/getting_started/server.py b/python/packages/ag-ui/getting_started/server.py index 4dfe0b36146..2e8988fa587 100644 --- a/python/packages/ag-ui/getting_started/server.py +++ b/python/packages/ag-ui/getting_started/server.py @@ -11,7 +11,7 @@ from agent_framework.ag_ui import add_agent_framework_fastapi_endpoint from agent_framework.openai import OpenAIChatCompletionClient from dotenv import load_dotenv -from fastapi import Depends, FastAPI, HTTPException, Security +from fastapi import FastAPI, HTTPException, Security from fastapi.security import APIKeyHeader load_dotenv() @@ -56,12 +56,15 @@ EXPECTED_API_KEY = os.environ.get("AG_UI_API_KEY") -async def verify_api_key(api_key: str | None = Security(API_KEY_HEADER)) -> None: - """Verify the API key provided in the request header. +async def resolve_authorization_scope(api_key: str | None = Security(API_KEY_HEADER)) -> str: + """Verify the API key and return its stable authorization scope. Args: api_key: The API key from the X-API-Key header + Returns: + The authorization scope shared by requests using the configured API key. + Raises: HTTPException: If the API key is missing or invalid """ @@ -73,7 +76,7 @@ async def verify_api_key(api_key: str | None = Security(API_KEY_HEADER)) -> None "The endpoint is accessible without authentication. " "Set AG_UI_API_KEY to enable API key authentication." ) - return + return "local-single-user" if not api_key: raise HTTPException( @@ -86,6 +89,7 @@ async def verify_api_key(api_key: str | None = Security(API_KEY_HEADER)) -> None status_code=403, detail="Invalid API key.", ) + return "configured-api-key" # Server-side tool (executes on server) @@ -129,13 +133,12 @@ def get_time_zone(location: str) -> str: # Create FastAPI app app = FastAPI(title="AG-UI Server") -# Register the AG-UI endpoint with authentication -# The dependencies parameter accepts FastAPI Depends() objects that run before the handler +# Register the AG-UI endpoint with authentication-backed authorization scoping. add_agent_framework_fastapi_endpoint( app, agent, "/", - dependencies=[Depends(verify_api_key)], + authorization_scope_resolver=resolve_authorization_scope, ) if __name__ == "__main__": diff --git a/python/packages/ag-ui/pyproject.toml b/python/packages/ag-ui/pyproject.toml index b4adb61ab53..9207cd46e67 100644 --- a/python/packages/ag-ui/pyproject.toml +++ b/python/packages/ag-ui/pyproject.toml @@ -1,6 +1,6 @@ [project] name = "agent-framework-ag-ui" -version = "1.5.1" +version = "1.6.0" description = "AG-UI protocol integration for Agent Framework" readme = "README.md" license-files = ["LICENSE"] @@ -24,7 +24,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.20.0,<2", + "agent-framework-core>=1.22.0,<2", "ag-ui-protocol>=0.1.19,<2", "fastapi>=0.121.0,<0.142.0", "httpx>=0.28.1,<1", diff --git a/python/packages/ag-ui/tests/ag_ui/conftest.py b/python/packages/ag-ui/tests/ag_ui/conftest.py index c4d4d972cde..9e9367403bc 100644 --- a/python/packages/ag-ui/tests/ag_ui/conftest.py +++ b/python/packages/ag-ui/tests/ag_ui/conftest.py @@ -344,6 +344,7 @@ def _factory( state_schema=state_schema, predict_state_config=predict_state_config, default_state=default_state, + single_user=True, ) return app diff --git a/python/packages/ag-ui/tests/ag_ui/test_endpoint.py b/python/packages/ag-ui/tests/ag_ui/test_endpoint.py index 2a2fc812832..d6cd10765d9 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_endpoint.py +++ b/python/packages/ag-ui/tests/ag_ui/test_endpoint.py @@ -13,7 +13,7 @@ from dataclasses import dataclass from inspect import signature from pathlib import Path -from typing import Any, cast +from typing import Annotated, Any, cast from unittest.mock import AsyncMock, Mock import pytest @@ -23,6 +23,7 @@ AgentContext, AgentResponseUpdate, AgentSession, + BaseAgent, ChatResponseUpdate, Content, ContextProvider, @@ -38,9 +39,12 @@ Message, MiddlewareBundle, MiddlewareFailure, + ServiceSessionId, SessionContext, SupportsAgentRun, ToolApprovalMiddleware, + ToolApprovalRule, + ToolApprovalState, WorkflowBuilder, WorkflowCheckpoint, WorkflowContext, @@ -52,9 +56,13 @@ ) from agent_framework._tools import FunctionInvocationLayer from agent_framework.orchestrations import SequentialBuilder -from agent_framework.security import SecureAgentConfig +from agent_framework.security import ( + LabelTrackingFunctionMiddleware, + PolicyEnforcementFunctionMiddleware, + SecureAgentConfig, +) from conftest import StubAgent # pyrefly: ignore[missing-import] # pyright: ignore[reportMissingImports] -from fastapi import FastAPI, Header, HTTPException +from fastapi import FastAPI, Header, HTTPException, Request from fastapi.params import Depends from fastapi.responses import StreamingResponse from fastapi.routing import APIRoute @@ -66,7 +74,9 @@ AGUIRequest, AGUIThreadSnapshot, InMemoryAGUIThreadSnapshotStore, - add_agent_framework_fastapi_endpoint, +) +from agent_framework_ag_ui import ( + add_agent_framework_fastapi_endpoint as _add_agent_framework_fastapi_endpoint, ) from agent_framework_ag_ui._agent import AgentFrameworkAgent from agent_framework_ag_ui._approval_lifecycle import ( @@ -76,20 +86,38 @@ ResumeDecision, ) from agent_framework_ag_ui._approval_state import InMemoryAGUIApprovalStateStore, approval_state_thread_id +from agent_framework_ag_ui._snapshots import _session_id_for_thread from agent_framework_ag_ui._workflow import ( _CHECKPOINT_REQUEST_OWNER_KEY, AgentFrameworkWorkflow, _OwnedWorkflowCheckpointStorage, ) +_DEFAULT_AUTHORIZATION_SCOPE = "test-single-user" + + +def add_agent_framework_fastapi_endpoint(*args: Any, **kwargs: Any) -> None: + """Register a test endpoint as intentionally single-user unless the test supplies a scope.""" + if ( + kwargs.get("authorization_scope_resolver") is None + and kwargs.get("snapshot_scope_resolver") is None + and not kwargs.get("single_user", False) + ): + kwargs["snapshot_scope_resolver"] = lambda _request: _DEFAULT_AUTHORIZATION_SCOPE + _add_agent_framework_fastapi_endpoint(*args, **kwargs) + def _decode_sse_events(response: Any) -> list[dict[str, Any]]: content = response.content.decode("utf-8") return [json.loads(line[6:]) for line in content.splitlines() if line.startswith("data: ")] -def _unscoped_approval_thread_id(thread_id: str) -> str: - return approval_state_thread_id(scope=None, thread_id=thread_id) +def _default_approval_thread_id(thread_id: str) -> str: + return approval_state_thread_id(scope=_DEFAULT_AUTHORIZATION_SCOPE, thread_id=thread_id) + + +def _default_session_id(thread_id: str) -> str: + return _session_id_for_thread(scope=_DEFAULT_AUTHORIZATION_SCOPE, thread_id=thread_id) async def _post_until_sse_event_then_disconnect( @@ -516,13 +544,17 @@ async def approve( pause_response = client.post( "/workflow-approval", - json={"messages": [{"role": "user", "content": "Refund the order"}]}, + json={ + "threadId": "thread-approval", + "messages": [{"role": "user", "content": "Refund the order"}], + }, ) assert pause_response.status_code == 200 resume_response = client.post( "/workflow-approval", json={ + "threadId": "thread-approval", "messages": [], "resume": [{"interruptId": "approval-1", "status": "resolved", "payload": {"approved": True}}], }, @@ -1048,13 +1080,17 @@ async def approve( client = TestClient(app) pause_response = client.post( "/workflow-approval", - json={"messages": [{"role": "user", "content": "Refund the order"}]}, + json={ + "threadId": "thread-approval", + "messages": [{"role": "user", "content": "Refund the order"}], + }, ) assert pause_response.status_code == 200 resume_response = client.post( "/workflow-approval", json={ + "threadId": "thread-approval", "messages": [], "resume": [ { @@ -1115,13 +1151,17 @@ async def approve( client = TestClient(app) pause_response = client.post( "/workflow-approval", - json={"messages": [{"role": "user", "content": "Refund the order"}]}, + json={ + "threadId": "thread-approval", + "messages": [{"role": "user", "content": "Refund the order"}], + }, ) assert pause_response.status_code == 200 resume_response = client.post( "/workflow-approval", json={ + "threadId": "thread-approval", "messages": [], "resume": [ { @@ -1179,7 +1219,10 @@ async def approve( client = TestClient(app) pause_response = client.post( "/workflow-approval", - json={"messages": [{"role": "user", "content": "Refund the order"}]}, + json={ + "threadId": "thread-approval", + "messages": [{"role": "user", "content": "Refund the order"}], + }, ) assert pause_response.status_code == 200 @@ -1190,6 +1233,7 @@ async def approve( resume_response = client.post( "/workflow-approval", json={ + "threadId": "thread-approval", "messages": [], "resume": [ { @@ -1307,21 +1351,21 @@ async def start(message: Any, ctx: WorkflowContext[Any, Any]) -> None: def test_add_endpoint_keepalive_default_is_enabled() -> None: """Keepalive defaults to the endpoint-owned enabled interval.""" - parameter = signature(add_agent_framework_fastapi_endpoint).parameters["keepalive_seconds"] + parameter = signature(_add_agent_framework_fastapi_endpoint).parameters["keepalive_seconds"] assert parameter.default == 15 def test_add_endpoint_detached_runs_default_is_disabled() -> None: """Detached execution is opt-in so current disconnect cancellation semantics remain the default.""" - parameter = signature(add_agent_framework_fastapi_endpoint).parameters["detached_runs"] + parameter = signature(_add_agent_framework_fastapi_endpoint).parameters["detached_runs"] assert parameter.default is False def test_add_endpoint_detached_run_limits_have_bounded_defaults() -> None: """Detached producers have finite admission and post-disconnect lifetime defaults.""" - parameters = signature(add_agent_framework_fastapi_endpoint).parameters + parameters = signature(_add_agent_framework_fastapi_endpoint).parameters assert parameters["max_detached_runs"].default == 32 assert parameters["detached_run_timeout_seconds"].default == 3600 @@ -1329,14 +1373,16 @@ def test_add_endpoint_detached_run_limits_have_bounded_defaults() -> None: def test_add_endpoint_detached_runs_preserves_existing_positional_parameter_order() -> None: """The new option is appended after existing parameters so positional a2ui_config callers do not shift.""" - parameters = list(signature(add_agent_framework_fastapi_endpoint).parameters) + parameters = list(signature(_add_agent_framework_fastapi_endpoint).parameters) assert parameters.index("detached_runs") > parameters.index("a2ui_config") + assert parameters.index("authorization_scope_resolver") > parameters.index("detached_run_timeout_seconds") + assert parameters.index("single_user") > parameters.index("authorization_scope_resolver") def test_add_endpoint_docstring_describes_keepalive_transport_behavior() -> None: """The public endpoint docs describe keepalive as transport comments, not AG-UI events.""" - docstring = add_agent_framework_fastapi_endpoint.__doc__ + docstring = _add_agent_framework_fastapi_endpoint.__doc__ assert docstring is not None normalized_docstring = " ".join(docstring.split()) @@ -1349,7 +1395,7 @@ def test_add_endpoint_docstring_describes_keepalive_transport_behavior() -> None def test_add_endpoint_docstring_describes_detached_run_behavior() -> None: """The public endpoint docs distinguish detached completion from resumable replay.""" - docstring = add_agent_framework_fastapi_endpoint.__doc__ + docstring = _add_agent_framework_fastapi_endpoint.__doc__ assert docstring is not None normalized_docstring = " ".join(docstring.split()) @@ -1628,7 +1674,8 @@ async def stream_fn( "threadId": "unstarted-thread", "messages": [{"role": "user", "content": "Start"}], } - ) + ), + Request({"type": "http", "method": "POST", "path": "/unstarted-reader", "headers": []}), ) assert isinstance(response, StreamingResponse) @@ -1690,7 +1737,8 @@ async def run(self, input_data: dict[str, Any]) -> AsyncGenerator[BaseEvent]: "threadId": "unstarted-thread", "messages": [{"role": "user", "content": "Start"}], } - ) + ), + Request({"type": "http", "method": "POST", "path": "/exact-capacity", "headers": []}), ) assert isinstance(response, StreamingResponse) await asyncio.wait_for(first_completed.wait(), timeout=5) @@ -3289,7 +3337,12 @@ async def authorize(x_user: str = Header(), x_scope: str = Header()) -> None: keepalive_seconds=None, ) add_agent_framework_fastapi_endpoint( - app, agent, path="/unscoped-memory", dependencies=[Depends(authorize)], keepalive_seconds=None + app, + agent, + path="/unscoped-memory", + dependencies=[Depends(authorize)], + keepalive_seconds=None, + single_user=True, ) client = TestClient(app) request_number = 0 @@ -3481,7 +3534,8 @@ def post( assert all(victim_description not in context for context in model_contexts[collision_start:]) assert {path: path.read_bytes() for path in victim_files} == victim_files - # No resolver is intentionally unscoped, unlike a configured resolver returning None. + # Explicit single-user mode gets one registration-local scope and retains continuity within that registration. + single_user_session_id: str | None = None for tool_name, arguments in [ ("file_memory_write", {"file_name": "unscoped.md", "content": "unscoped continuity"}), ("file_memory_read", {"file_name": "unscoped.md"}), @@ -3495,7 +3549,11 @@ def post( public_thread_id="ordinary-unscoped-thread", ) assert response.status_code == 200 - assert chat_client.last_session.session_id == "ordinary-unscoped-thread" + assert chat_client.last_session.session_id != "ordinary-unscoped-thread" + if single_user_session_id is None: + single_user_session_id = chat_client.last_session.session_id + else: + assert chat_client.last_session.session_id == single_user_session_id if tool_name == "file_memory_read": result = next( event["content"] for event in _decode_sse_events(response) if event["type"] == "TOOL_CALL_RESULT" @@ -4033,7 +4091,7 @@ async def stream_fn( assert [event["code"] for event in resume_events if event.get("type") == "RUN_ERROR"] == ["MiddlewareFailure"] assert not [event for event in resume_events if event.get("type") == "TOOL_CALL_RESULT"] assert executed == [] - assert policy_observations == [(f"thread-policy-{a2ui_mode}", None)] + assert policy_observations == [(_default_session_id(f"thread-policy-{a2ui_mode}"), None)] state["phase"] = "pause" direct_session = AgentSession(session_id=f"direct-policy-{a2ui_mode}") @@ -4180,7 +4238,7 @@ async def stream_fn( assert not [event for event in events if event.get("type") == "TOOL_CALL_RESULT"] assert executed == [] assert render_calls == [] - assert policy_sessions == [f"thread-mixed-policy-{a2ui_mode}"] + assert policy_sessions == [_default_session_id(f"thread-mixed-policy-{a2ui_mode}")] state["direct"] = True with pytest.raises(MiddlewareFailure): @@ -4557,7 +4615,7 @@ def second_tool() -> str: ) wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) lifecycle = wrapped_agent._approval_state_store.lifecycle - approval_thread_id = _unscoped_approval_thread_id("thread-shared-call") + approval_thread_id = _default_approval_thread_id("thread-shared-call") first = lifecycle.register( owner=ApprovalExecutionOwner.LOCAL, thread_id=approval_thread_id, @@ -4610,7 +4668,7 @@ async def test_endpoint_agent_unavailable_local_executor_releases_every_unstarte ) wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) lifecycle = wrapped_agent._approval_state_store.lifecycle - approval_thread_id = _unscoped_approval_thread_id("thread-unavailable-batch") + approval_thread_id = _default_approval_thread_id("thread-unavailable-batch") local = lifecycle.register( owner=ApprovalExecutionOwner.LOCAL, thread_id=approval_thread_id, @@ -4730,6 +4788,7 @@ def _build_tool_approval_queue_endpoint( streaming_chat_client_stub: Any, *, lifecycle: ApprovalLifecycle | None = None, + snapshot_store: InMemoryAGUIThreadSnapshotStore | None = None, ) -> tuple[TestClient, list[str], list[Message], dict[str, str], AgentFrameworkAgent]: executed: list[str] = [] messages_received: list[Message] = [] @@ -4781,11 +4840,170 @@ async def stream_fn( app, wrapped_agent, path="/approval", + snapshot_store=snapshot_store, + snapshot_scope_resolver=(lambda _request: "test") if snapshot_store is not None else None, ) return TestClient(app), executed, messages_received, state, wrapped_agent -@pytest.mark.parametrize("middleware_kind", ["direct", "bundle", "wrapper"]) +class _ProtocolOnlyAgent: + """Valid ``SupportsAgentRun`` that delegates execution but exposes no middleware or provider metadata.""" + + def __init__(self, inner: SupportsAgentRun) -> None: + self._inner: Any = inner + self.id = inner.id + self.name = inner.name + self.description = inner.description + + def run( + self, + messages: Any = None, + *, + stream: bool = False, + session: AgentSession | None = None, + **kwargs: Any, + ) -> Any: + return self._inner.run(messages, stream=stream, session=session, **kwargs) + + def create_session(self, *, session_id: str | None = None) -> AgentSession: + return cast(AgentSession, self._inner.create_session(session_id=session_id)) + + def get_session( + self, + service_session_id: str | ServiceSessionId, + *, + session_id: str | None = None, + ) -> AgentSession: + return cast(AgentSession, self._inner.get_session(service_session_id, session_id=session_id)) + + +class _ObjectStateAgent(_ProtocolOnlyAgent): + """Protocol-only wrapper whose server-created conversation holds trusted rules as a ``ToolApprovalState`` object.""" + + def create_conversation(self, *, session_id: str | None = None) -> AgentSession: + session = AgentSession(session_id=session_id) + session.state["custom_approvals"] = ToolApprovalState(rules=[ToolApprovalRule(tool_name="gated_tool")]) + return session + + +class _BaseAgentWrapper(BaseAgent): + """``BaseAgent`` subclass that delegates execution but keeps its own empty middleware metadata.""" + + def __init__(self, inner: SupportsAgentRun) -> None: + super().__init__(id=inner.id, name=inner.name, description=inner.description) + self._inner: Any = inner + + def run( + self, + messages: Any = None, + *, + stream: bool = False, + session: AgentSession | None = None, + **kwargs: Any, + ) -> Any: + return self._inner.run(messages, stream=stream, session=session, **kwargs) + + +def _wrap_endpoint_agent(agent: SupportsAgentRun, wrapper_kind: str) -> SupportsAgentRun: + """Return ``agent``, or a wrapper that hides its middleware from the agent object AG-UI is handed.""" + if wrapper_kind == "protocol_wrapper": + return cast(SupportsAgentRun, _ProtocolOnlyAgent(agent)) + if wrapper_kind == "object_state_wrapper": + return cast(SupportsAgentRun, _ObjectStateAgent(agent)) + if wrapper_kind == "base_agent_wrapper": + return cast(SupportsAgentRun, _BaseAgentWrapper(agent)) + return agent + + +@dataclass +class _HiddenApprovalHarness: + client: TestClient + executed: list[str] + store: InMemoryAGUIThreadSnapshotStore + chat_client: Any + + def post( + self, + message: str | None = None, + *, + state: dict[str, Any] | None = None, + resume: list[dict[str, Any]] | None = None, + run_id: str = "run", + ) -> list[dict[str, Any]]: + payload: dict[str, Any] = { + "threadId": "hidden-approval", + "runId": run_id, + "messages": [] if message is None else [{"role": "user", "content": message}], + } + if state is not None: + payload["state"] = state + if resume is not None: + payload["resume"] = resume + response = self.client.post("/approval", json=payload) + assert response.status_code == 200 + return _decode_sse_events(response) + + +async def _build_hidden_approval_harness( + streaming_chat_client_stub: Any, + wrapper_kind: str, + *, + trusted_rule: bool = False, + use_service_session: bool = False, +) -> _HiddenApprovalHarness: + """Build an endpoint whose agent has a custom-namespace ToolApprovalMiddleware, optionally hidden by a wrapper.""" + executed: list[str] = [] + + def gated_tool() -> str: + executed.append("ran") + return "done" + + async def stream_fn( + messages: list[Message], + options: dict[str, Any], + **kwargs: Any, + ) -> AsyncIterator[ChatResponseUpdate]: + if executed: + yield ChatResponseUpdate(contents=[Content.from_text(text="Done.")], role="assistant") + elif any("Run the test tool" in message.text for message in messages): + yield ChatResponseUpdate( + contents=[Content.from_function_call(call_id="call_gated", name="gated_tool", arguments="{}")], + role="assistant", + ) + else: + yield ChatResponseUpdate(contents=[Content.from_text(text="Hello.")], role="assistant") + + chat_client = streaming_chat_client_stub(stream_fn) + agent = Agent( + client=chat_client, + tools=[ + FunctionTool(name="gated_tool", description="Test tool", func=gated_tool, approval_mode="always_require") + ], + middleware=[ToolApprovalMiddleware(source_id="custom_approvals")], + ) + store = InMemoryAGUIThreadSnapshotStore() + if trusted_rule: + await store.save( + scope="test", + thread_id="hidden-approval", + snapshot=AGUIThreadSnapshot(session_state={"custom_approvals": {"rules": [{"tool_name": "gated_tool"}]}}), + ) + app = FastAPI() + add_agent_framework_fastapi_endpoint( + app, + AgentFrameworkAgent( + agent=_wrap_endpoint_agent(agent, wrapper_kind), + require_confirmation=False, + use_service_session=use_service_session, + ), + path="/approval", + snapshot_store=store, + snapshot_scope_resolver=lambda _request: "test", + ) + return _HiddenApprovalHarness(client=TestClient(app), executed=executed, store=store, chat_client=chat_client) + + +@pytest.mark.parametrize("middleware_kind", ["direct", "bundle", "wrapper", "protocol_wrapper", "base_agent_wrapper"]) @pytest.mark.parametrize("state_origin", ["request", "snapshot"]) @pytest.mark.parametrize("trusted_approval", [False, True]) async def test_endpoint_custom_approval_namespaces_remain_server_owned( @@ -4831,7 +5049,9 @@ def __getattr__(self, name: str) -> Any: return getattr(agent, name) wrapped = AgentFrameworkAgent( - agent=cast(SupportsAgentRun, ForwardingAgent()) if middleware_kind == "wrapper" else agent, + agent=cast(SupportsAgentRun, ForwardingAgent()) + if middleware_kind == "wrapper" + else _wrap_endpoint_agent(agent, middleware_kind), require_confirmation=False, ) # Namespace discovery must use the live middleware, not construction-time configuration. @@ -4888,6 +5108,390 @@ def __getattr__(self, name: str) -> Any: ) +@pytest.mark.parametrize("wrapper_kind", ["protocol_wrapper", "base_agent_wrapper"]) +@pytest.mark.parametrize( + "client_value", + [{}, None, {"unrelated": 1}, {"rules": []}, "not-a-mapping", []], + ids=["empty-mapping", "null", "unrelated-mapping", "empty-rules", "string", "empty-list"], +) +async def test_endpoint_hidden_approval_namespace_keeps_trusted_rules_against_client_values( + streaming_chat_client_stub: Any, + wrapper_kind: str, + client_value: Any, +) -> None: + """Client Shared State cannot replace approval state the server already holds, whatever its shape.""" + harness = await _build_hidden_approval_harness(streaming_chat_client_stub, wrapper_kind, trusted_rule=True) + + events = harness.post("Run the test tool", state={"custom_approvals": client_value, "client_value": "available"}) + + assert not [event for event in events if event["type"] == "RUN_ERROR"] + assert harness.executed == ["ran"] + assert "outcome" not in next(event for event in events if event["type"] == "RUN_FINISHED") + snapshot = await harness.store.get(scope="test", thread_id="hidden-approval") + assert snapshot is not None + assert snapshot.session_state is not None + assert [rule["tool_name"] for rule in snapshot.session_state["custom_approvals"]["rules"]] == ["gated_tool"] + + +@pytest.mark.parametrize( + "client_value", + [{}, None, {"unrelated": 1}, {"rules": []}, "not-a-mapping", []], + ids=["empty-mapping", "null", "unrelated-mapping", "empty-rules", "string", "empty-list"], +) +async def test_endpoint_hidden_approval_namespace_keeps_trusted_state_object_against_client_values( + streaming_chat_client_stub: Any, + client_value: Any, +) -> None: + """A ``ToolApprovalState`` object in a server-created conversation is not replaced by client Shared State.""" + harness = await _build_hidden_approval_harness( + streaming_chat_client_stub, "object_state_wrapper", use_service_session=True + ) + + events = harness.post("Run the test tool", state={"custom_approvals": client_value, "client_value": "available"}) + + assert not [event for event in events if event["type"] == "RUN_ERROR"] + assert harness.executed == ["ran"] + assert "outcome" not in next(event for event in events if event["type"] == "RUN_FINISHED") + snapshot = await harness.store.get(scope="test", thread_id="hidden-approval") + assert snapshot is not None + assert snapshot.session_state is not None + assert [rule["tool_name"] for rule in snapshot.session_state["custom_approvals"]["rules"]] == ["gated_tool"] + + +@pytest.mark.parametrize("wrapper_kind", ["protocol_wrapper", "base_agent_wrapper"]) +@pytest.mark.parametrize("state_origin", ["request", "snapshot"]) +@pytest.mark.parametrize( + "rules", + [ + [{"tool_name": "gated_tool"}], + [[["tool_name", "gated_tool"]]], + [[["tool_name", " gated_tool "]]], + ], + ids=["mapping-rule", "pair-list-rule", "padded-pair-list-rule"], +) +async def test_endpoint_hidden_approval_namespace_ignores_client_rules_in_any_encoding( + streaming_chat_client_stub: Any, + wrapper_kind: str, + state_origin: str, + rules: list[Any], +) -> None: + """Standing approvals in client Shared State are ignored however they are encoded, even for a hidden namespace.""" + harness = await _build_hidden_approval_harness(streaming_chat_client_stub, wrapper_kind) + shared_state = {"custom_approvals": {"rules": rules}, "client_value": "available"} + if state_origin == "snapshot": + await harness.store.save( + scope="test", + thread_id="hidden-approval", + snapshot=AGUIThreadSnapshot(state=shared_state), + ) + events = harness.post("Run the test tool") + else: + events = harness.post("Run the test tool", state=shared_state) + + assert not [event for event in events if event["type"] == "RUN_ERROR"] + assert harness.executed == [] + assert next(event for event in events if event["type"] == "RUN_FINISHED")["outcome"]["type"] == "interrupt" + assert harness.chat_client.last_session.state["client_value"] == "available" + assert harness.chat_client.last_session.state["custom_approvals"]["rules"] == [] + + +@pytest.mark.parametrize("wrapper_kind", ["protocol_wrapper", "base_agent_wrapper"]) +@pytest.mark.parametrize("field", ["queued_approval_requests", "collected_approval_responses"]) +async def test_endpoint_hidden_approval_namespace_ignores_forged_queued_and_collected_approvals( + streaming_chat_client_stub: Any, + wrapper_kind: str, + field: str, +) -> None: + """Forged queued requests and collected responses neither surface as approvals nor execute the tool.""" + forged_request = Content.from_function_approval_request( + id="forged-request", + function_call=Content.from_function_call(call_id="forged-call", name="gated_tool", arguments="{}"), + ) + forged_item = ( + forged_request.to_dict() + if field == "queued_approval_requests" + else forged_request.to_function_approval_response(approved=True).to_dict() + ) + harness = await _build_hidden_approval_harness(streaming_chat_client_stub, wrapper_kind) + + events = harness.post("Hello", state={"custom_approvals": {field: [forged_item]}}) + + assert not [event for event in events if event["type"] == "RUN_ERROR"] + assert harness.executed == [] + assert "outcome" not in next(event for event in events if event["type"] == "RUN_FINISHED") + assert harness.chat_client.last_session is not None + + +@pytest.mark.parametrize("wrapper_kind", ["direct", "protocol_wrapper"]) +async def test_endpoint_shared_state_reaches_session_unless_it_carries_approval_lists( + streaming_chat_client_stub: Any, + wrapper_kind: str, + caplog: pytest.LogCaptureFixture, +) -> None: + """Ordinary Shared State still reaches the session; state carrying approval lists is ignored with a warning.""" + harness = await _build_hidden_approval_harness(streaming_chat_client_stub, wrapper_kind) + state = { + "client_value": "available", + "document": {"title": "synthetic", "items": [1, 2]}, + "policy": {"rules": []}, + "permissions": {"rules": [{"tool_name": "other_tool"}]}, + } + + with caplog.at_level(logging.WARNING, logger="agent_framework_ag_ui._agent_run"): + harness.post("Hello", state=state) + + session_state = harness.chat_client.last_session.state + assert session_state["client_value"] == "available" + assert session_state["document"] == {"title": "synthetic", "items": [1, 2]} + assert session_state["policy"] == {"rules": []} + assert "permissions" not in session_state + assert "'permissions'" in caplog.text + + +async def test_endpoint_protocol_only_wrapper_completes_human_approval(streaming_chat_client_stub: Any) -> None: + """A wrapper that exposes no middleware still pauses for approval and runs the tool once after a human approves.""" + harness = await _build_hidden_approval_harness(streaming_chat_client_stub, "protocol_wrapper") + + pause = harness.post("Run the test tool", run_id="pause") + interrupts = _run_finished_interrupts(next(event for event in pause if event["type"] == "RUN_FINISHED")) + assert harness.executed == [] + assert len(interrupts) == 1 + + resume = harness.post( + resume=[{"interruptId": interrupts[0]["id"], "status": "resolved", "payload": {"approved": True}}], + run_id="resume", + ) + + assert not [event for event in resume if event["type"] == "RUN_ERROR"] + assert harness.executed == ["ran"] + + +_STANDALONE_FIDES_STATE_KEY = "__agent_framework_fides_security__" +_STANDALONE_FIDES_THREAD_ID = "thread-fides-state" +_TRUSTED_PUBLIC_LABEL = json.dumps({"integrity": "trusted", "confidentiality": "public"}) + + +def _build_standalone_fides_endpoint( + streaming_chat_client_stub: Any, + *, + middleware_kind: str = "direct", + session_state_key: str | None = None, +) -> tuple[TestClient, InMemoryAGUIThreadSnapshotStore, list[str], Any, str]: + """Build an endpoint where standalone FIDES middleware blocks ``guarded_action`` once ``fetch_external`` ran.""" + executed: list[str] = [] + model_calls = 0 + + def fetch_external() -> str: + return "untrusted content" + + def guarded_action() -> str: + executed.append("guarded") + return "guarded result" + + async def stream_fn( + messages: list[Message], + options: dict[str, Any], + **kwargs: Any, + ) -> AsyncIterator[ChatResponseUpdate]: + nonlocal model_calls + del options, kwargs + model_calls += 1 + last_user_index = max(index for index, message in enumerate(messages) if message.role == "user") + has_tool_result = any( + content.type == "function_result" + for message in messages[last_user_index + 1 :] + for content in message.contents + ) + if has_tool_result: + yield ChatResponseUpdate(role="assistant", contents=[Content.from_text("done")]) + return + tool_name = {"taint": "fetch_external", "act": "guarded_action"}[messages[last_user_index].text] + yield ChatResponseUpdate( + role="assistant", + contents=[Content.from_function_call(call_id=f"call-{model_calls}", name=tool_name, arguments={})], + ) + + key_kwargs: dict[str, Any] = {} if session_state_key is None else {"session_state_key": session_state_key} + middleware: list[Any] = [ + LabelTrackingFunctionMiddleware(auto_hide_untrusted=False, **key_kwargs), + PolicyEnforcementFunctionMiddleware( + allow_untrusted_tools={"fetch_external"}, + block_on_violation=True, + **key_kwargs, + ), + ] + chat_client = streaming_chat_client_stub(stream_fn) + agent_middleware: list[Any] | None = middleware + if middleware_kind == "bundle": + agent_middleware = [MiddlewareBundle(middleware)] + elif middleware_kind == "client": + chat_client.function_middleware.extend(middleware) + agent_middleware = None + agent = Agent(client=chat_client, tools=[fetch_external, guarded_action], middleware=agent_middleware) + + class ForwardingAgent: + def __getattr__(self, name: str) -> Any: + return getattr(agent, name) + + store = InMemoryAGUIThreadSnapshotStore() + app = FastAPI() + add_agent_framework_fastapi_endpoint( + app, + AgentFrameworkAgent( + agent=cast(SupportsAgentRun, ForwardingAgent()) if middleware_kind == "wrapper" else agent, + require_confirmation=False, + ), + path="/fides", + snapshot_store=store, + snapshot_scope_resolver=lambda _request: "test", + keepalive_seconds=None, + ) + return TestClient(app), store, executed, chat_client, session_state_key or _STANDALONE_FIDES_STATE_KEY + + +def _post_standalone_fides_turn( + client: TestClient, + text: str, + *, + turn: int, + state: dict[str, Any] | None = None, +) -> list[str]: + """Post one turn and return its tool results, requiring a run without errors.""" + payload: dict[str, Any] = { + "threadId": _STANDALONE_FIDES_THREAD_ID, + "messages": [{"id": f"user-{turn}", "role": "user", "content": text}], + } + if state is not None: + payload["state"] = state + response = client.post("/fides", json=payload) + + assert response.status_code == 200 + events = _decode_sse_events(response) + assert not any(event["type"] == "RUN_ERROR" for event in events) + return [event["content"] for event in events if event["type"] == "TOOL_CALL_RESULT"] + + +def _is_policy_violation(tool_results: list[str]) -> bool: + return any("Policy violation" in result for result in tool_results) + + +@pytest.mark.parametrize("middleware_kind", ["direct", "bundle", "wrapper", "client"]) +@pytest.mark.parametrize("session_state_key", [None, "custom_security_state"], ids=["default-key", "custom-key"]) +@pytest.mark.parametrize("state_origin", ["request", "snapshot"]) +async def test_endpoint_standalone_fides_state_remains_server_owned( + streaming_chat_client_stub: Any, + middleware_kind: str, + session_state_key: str | None, + state_origin: str, +) -> None: + """Shared State cannot replace standalone FIDES security state, including after snapshot restore.""" + client, store, executed, chat_client, state_key = _build_standalone_fides_endpoint( + streaming_chat_client_stub, + middleware_kind=middleware_kind, + session_state_key=session_state_key, + ) + shared_state = {state_key: {"context_label": _TRUSTED_PUBLIC_LABEL}, "client_value": "available"} + + assert not _is_policy_violation(_post_standalone_fides_turn(client, "taint", turn=1)) + if state_origin == "snapshot": + stored = await store.get(scope="test", thread_id=_STANDALONE_FIDES_THREAD_ID) + assert stored is not None + stored.state = shared_state + await store.save(scope="test", thread_id=_STANDALONE_FIDES_THREAD_ID, snapshot=stored) + forged_turn = _post_standalone_fides_turn( + client, + "act", + turn=2, + state=shared_state if state_origin == "request" else None, + ) + replay_turn = _post_standalone_fides_turn(client, "act", turn=3) + + assert _is_policy_violation(forged_turn) + assert _is_policy_violation(replay_turn) + assert executed == [] + assert chat_client.last_session is not None + assert chat_client.last_session.state["client_value"] == "available" + snapshot = await store.get(scope="test", thread_id=_STANDALONE_FIDES_THREAD_ID) + assert snapshot is not None + assert snapshot.state is not None + assert snapshot.state["client_value"] == "available" + assert snapshot.session_state is not None + assert json.loads(snapshot.session_state[state_key]["context_label"])["integrity"] == "untrusted" + + +@pytest.mark.parametrize("session_state_key", [None, "custom_security_state"], ids=["default-key", "custom-key"]) +async def test_endpoint_standalone_fides_continuation_persists_without_client_state( + streaming_chat_client_stub: Any, + session_state_key: str | None, +) -> None: + """Protecting FIDES state from Shared State keeps its server-owned continuation across requests.""" + client, store, executed, _, state_key = _build_standalone_fides_endpoint( + streaming_chat_client_stub, + session_state_key=session_state_key, + ) + + _post_standalone_fides_turn(client, "taint", turn=1) + guarded_turn = _post_standalone_fides_turn(client, "act", turn=2) + + assert _is_policy_violation(guarded_turn) + assert executed == [] + snapshot = await store.get(scope="test", thread_id=_STANDALONE_FIDES_THREAD_ID) + assert snapshot is not None + assert snapshot.session_state is not None + assert json.loads(snapshot.session_state[state_key]["context_label"])["integrity"] == "untrusted" + assert state_key not in (snapshot.state or {}) + + +@pytest.mark.parametrize( + "forged_value", + [ + "not-a-dict", + {}, + {"scope_id": "another-scope"}, + {"context_label": "{not json"}, + {"context_label": {"integrity": "trusted", "confidentiality": "public"}}, + ], + ids=["non-dict", "empty", "other-scope", "invalid-label-json", "unencoded-label"], +) +async def test_endpoint_standalone_fides_malformed_shared_state_is_inert( + streaming_chat_client_stub: Any, + forged_value: Any, +) -> None: + """Malformed Shared State under the FIDES key neither resets enforcement nor breaks tool calls.""" + client, _, executed, _, _ = _build_standalone_fides_endpoint(streaming_chat_client_stub) + + _post_standalone_fides_turn(client, "taint", turn=1) + forged_turn = _post_standalone_fides_turn( + client, + "act", + turn=2, + state={_STANDALONE_FIDES_STATE_KEY: forged_value}, + ) + replay_turn = _post_standalone_fides_turn(client, "act", turn=3) + + assert _is_policy_violation(forged_turn) + assert _is_policy_violation(replay_turn) + assert executed == [] + + +async def test_endpoint_standalone_fides_poisoned_snapshot_state_does_not_reset_enforcement( + streaming_chat_client_stub: Any, +) -> None: + """A snapshot whose Shared State already carries a FIDES scope no longer overrides server-owned state.""" + client, store, executed, _, _ = _build_standalone_fides_endpoint(streaming_chat_client_stub) + await store.save( + scope="test", + thread_id=_STANDALONE_FIDES_THREAD_ID, + snapshot=AGUIThreadSnapshot(state={_STANDALONE_FIDES_STATE_KEY: {"context_label": _TRUSTED_PUBLIC_LABEL}}), + ) + + _post_standalone_fides_turn(client, "taint", turn=1) + guarded_turn = _post_standalone_fides_turn(client, "act", turn=2) + + assert _is_policy_violation(guarded_turn) + assert executed == [] + + def _build_tool_approval_auto_endpoint( streaming_chat_client_stub: Any, ) -> tuple[TestClient, list[str], list[Message], dict[str, str]]: @@ -5071,7 +5675,7 @@ def guarded_tool(value: str) -> str: wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) wrapped_agent._approval_state_store.lifecycle.register( owner=ApprovalExecutionOwner.LOCAL, - thread_id=_unscoped_approval_thread_id("thread-reused-confirm-id"), + thread_id=_default_approval_thread_id("thread-reused-confirm-id"), interrupt_id="af-call-current", call_id="provider-reused", name="guarded_tool", @@ -5142,7 +5746,7 @@ def second_tool() -> str: ) wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) lifecycle = wrapped_agent._approval_state_store.lifecycle - approval_thread_id = _unscoped_approval_thread_id("thread-legacy-reused") + approval_thread_id = _default_approval_thread_id("thread-legacy-reused") lifecycle.register( owner=ApprovalExecutionOwner.LOCAL, thread_id=approval_thread_id, @@ -5211,7 +5815,7 @@ def guarded_tool() -> str: wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) wrapped_agent._approval_state_store.lifecycle.register( owner=ApprovalExecutionOwner.LOCAL, - thread_id=_unscoped_approval_thread_id("thread-legacy-collision"), + thread_id=_default_approval_thread_id("thread-legacy-collision"), interrupt_id="af-call-secret", call_id="provider-real", name="guarded_tool", @@ -5268,7 +5872,7 @@ def guarded_tool() -> str: wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) wrapped_agent._approval_state_store.lifecycle.register( owner=ApprovalExecutionOwner.LOCAL, - thread_id=_unscoped_approval_thread_id("thread-legacy-duplicate"), + thread_id=_default_approval_thread_id("thread-legacy-duplicate"), interrupt_id="af-call-current", call_id="provider-call", name="guarded_tool", @@ -5322,7 +5926,7 @@ def dangerous_tool(value: str) -> str: wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) wrapped_agent._approval_state_store.lifecycle.register( owner=ApprovalExecutionOwner.LOCAL, - thread_id=_unscoped_approval_thread_id("thread-historical-legacy"), + thread_id=_default_approval_thread_id("thread-historical-legacy"), interrupt_id="af-call-current", call_id="provider-reused", name="dangerous_tool", @@ -6081,7 +6685,7 @@ def record_city(city: str) -> str: ) wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) lifecycle = wrapped_agent._approval_state_store.lifecycle - approval_thread_id = _unscoped_approval_thread_id("thread-completed-sibling") + approval_thread_id = _default_approval_thread_id("thread-completed-sibling") completed = lifecycle.register( owner=ApprovalExecutionOwner.LOCAL, thread_id=approval_thread_id, @@ -6202,10 +6806,12 @@ async def test_endpoint_agent_approval_resume_releases_already_approved_sibling( assert sorted(replayed_call_ids) == ["call_sensitive", "call_weather"] -async def test_endpoint_agent_approval_resume_distinguishes_hidden_siblings_with_reused_call_id( - streaming_chat_client_stub, -) -> None: - """Distinct hidden occurrences sharing a provider call ID resume and execute once.""" +def _build_reused_provider_call_id_endpoint( + streaming_chat_client_stub: Any, + *, + snapshot_store: InMemoryAGUIThreadSnapshotStore | None = None, +) -> tuple[TestClient, list[str], dict[str, str], AgentFrameworkAgent]: + """Pause on one guarded call whose two safe siblings reuse its provider call ID.""" executed: list[str] = [] state = {"phase": "pause"} @@ -6271,8 +6877,21 @@ async def stream_fn( ) wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) app = FastAPI() - add_agent_framework_fastapi_endpoint(app, wrapped_agent, path="/approval") - client = TestClient(app) + add_agent_framework_fastapi_endpoint( + app, + wrapped_agent, + path="/approval", + snapshot_store=snapshot_store, + snapshot_scope_resolver=(lambda _request: "test") if snapshot_store is not None else None, + ) + return TestClient(app), executed, state, wrapped_agent + + +async def test_endpoint_agent_approval_resume_distinguishes_hidden_siblings_with_reused_call_id( + streaming_chat_client_stub, +) -> None: + """Distinct hidden occurrences sharing a provider call ID resume and execute once.""" + client, executed, state, wrapped_agent = _build_reused_provider_call_id_endpoint(streaming_chat_client_stub) thread_id = "thread-shared-provider-call" pause_response = client.post( @@ -6323,7 +6942,7 @@ async def stream_fn( assert {event["toolCallId"] for event in tool_results} == {"provider-shared"} occurrences = wrapped_agent._approval_state_store.lifecycle.occurrences_for_thread( - thread_id=_unscoped_approval_thread_id(thread_id) + thread_id=_default_approval_thread_id(thread_id) ) assert {occurrence.identity.interrupt_id for occurrence in occurrences} == { "guarded-occurrence", @@ -6335,6 +6954,52 @@ async def stream_fn( assert {occurrence.status for occurrence in occurrences} == {ApprovalStatus.SETTLED} +async def test_endpoint_approval_snapshot_keeps_every_result_for_reused_call_id(streaming_chat_client_stub) -> None: + """Results of distinct occurrences sharing a provider call ID all survive the snapshot round trip.""" + store = InMemoryAGUIThreadSnapshotStore() + client, executed, state, _ = _build_reused_provider_call_id_endpoint( + streaming_chat_client_stub, snapshot_store=store + ) + thread_id = "thread-shared-provider-call-snapshot" + expected_results = ["guarded result", "first safe result", "second safe result"] + + def post(run_id: str, *, text: str | None = None, interrupt_id: str | None = None) -> list[dict[str, Any]]: + payload: dict[str, Any] = { + "runId": run_id, + "threadId": thread_id, + "messages": [{"role": "user", "content": text}] if text else [], + } + if interrupt_id: + payload["resume"] = [{"interruptId": interrupt_id, "status": "resolved", "payload": {"accepted": True}}] + response = client.post("/approval", json=payload) + assert response.status_code == 200 + events = _decode_sse_events(response) + assert not [event for event in events if event["type"] == "RUN_ERROR"] + return events + + def tool_results(messages: list[dict[str, Any]]) -> list[tuple[str, str]]: + return [ + (str(message.get("toolCallId") or message.get("tool_call_id")), message["content"]) + for message in messages + if message.get("role") == "tool" + ] + + post("run-pause", text="Run all three tools") + state["phase"] = "resume" + resume_events = post("run-resume", interrupt_id="guarded-occurrence") + assert Counter(executed) == {"guarded": 1, "first-safe": 1, "second-safe": 1} + + snapshot_events = [event for event in resume_events if event["type"] == "MESSAGES_SNAPSHOT"] + assert snapshot_events + event_messages = snapshot_events[-1]["messages"] + assert tool_results(event_messages) == [("provider-shared", result) for result in expected_results] + assert [message["role"] for message in event_messages] == ["user", "assistant", "tool", "tool", "tool", "assistant"] + + saved = await store.get(scope="test", thread_id=thread_id) + assert saved is not None + assert tool_results(saved.messages) == [("provider-shared", result) for result in expected_results] + + def _build_fides_policy_approval_endpoint( streaming_chat_client_stub: Any, *, @@ -6849,46 +7514,318 @@ async def test_endpoint_agent_approval_resume_surfaces_queued_tool_approval(stre }, ) - assert first_resume.status_code == 200 - first_resume_events = _decode_sse_events(first_resume) - tool_results = [event for event in first_resume_events if event.get("type") == "TOOL_CALL_RESULT"] - assert tool_results == [] - first_resume_finished = [event for event in first_resume_events if event.get("type") == "RUN_FINISHED"] - second_interrupts = _run_finished_interrupts(first_resume_finished[-1]) - assert len(second_interrupts) == 1 - second_approval_id = second_interrupts[0]["id"] - assert second_approval_id.startswith("af-call-") - assert second_interrupts[0]["toolCallId"] == "call_second" - assert not [ - event - for event in first_resume_events - if event.get("type") == "TOOL_CALL_END" and event.get("toolCallId") == "call_first" - ] - assert executed == [] - assert messages_received == [] + assert first_resume.status_code == 200 + first_resume_events = _decode_sse_events(first_resume) + tool_results = [event for event in first_resume_events if event.get("type") == "TOOL_CALL_RESULT"] + assert tool_results == [] + first_resume_finished = [event for event in first_resume_events if event.get("type") == "RUN_FINISHED"] + second_interrupts = _run_finished_interrupts(first_resume_finished[-1]) + assert len(second_interrupts) == 1 + second_approval_id = second_interrupts[0]["id"] + assert second_approval_id.startswith("af-call-") + assert second_interrupts[0]["toolCallId"] == "call_second" + assert not [ + event + for event in first_resume_events + if event.get("type") == "TOOL_CALL_END" and event.get("toolCallId") == "call_first" + ] + assert executed == [] + assert messages_received == [] + + final_resume = client.post( + "/approval", + json={ + "runId": "run-resume-second", + "threadId": "thread-queued-approval", + "messages": [], + "resume": [{"interruptId": second_approval_id, "status": "resolved", "payload": {"accepted": True}}], + }, + ) + + assert final_resume.status_code == 200 + final_events = _decode_sse_events(final_resume) + final_tool_results = [event for event in final_events if event.get("type") == "TOOL_CALL_RESULT"] + assert [(event["toolCallId"], event["content"]) for event in final_tool_results] == [ + ("call_first", "first result"), + ("call_second", "second result"), + ] + assert executed == ["first", "second"] + replayed_results = [ + content for message in messages_received for content in message.contents if content.type == "function_result" + ] + assert [content.call_id for content in replayed_results] == ["call_first", "call_second"] + + +async def test_endpoint_queued_approval_snapshot_retains_every_released_result(streaming_chat_client_stub): + """Results for decisions collected in earlier requests survive the snapshot round trip (#8789).""" + store = InMemoryAGUIThreadSnapshotStore() + client, executed, messages_received, state, _ = _build_tool_approval_queue_endpoint( + streaming_chat_client_stub, snapshot_store=store + ) + thread_id = "thread-queued-snapshot" + + def post(run_id: str, *, text: str | None = None, approval_id: str | None = None) -> list[dict[str, Any]]: + payload: dict[str, Any] = { + "runId": run_id, + "threadId": thread_id, + "messages": [{"role": "user", "content": text}] if text else [], + } + if approval_id: + payload["resume"] = [{"interruptId": approval_id, "status": "resolved", "payload": {"accepted": True}}] + response = client.post("/approval", json=payload) + assert response.status_code == 200 + events = _decode_sse_events(response) + assert not [event for event in events if event["type"] == "RUN_ERROR"] + return events + + def next_approval_id(events: list[dict[str, Any]]) -> str: + finished = [event for event in events if event["type"] == "RUN_FINISHED"] + return _run_finished_interrupts(finished[-1])[0]["id"] + + def tool_result_call_ids(messages: list[dict[str, Any]]) -> list[str]: + return [ + str(message.get("toolCallId") or message.get("tool_call_id")) + for message in messages + if message.get("role") == "tool" + ] + + pause_events = post("run-pause", text="Run both tools") + state["phase"] = "resume" + first_resume_events = post("run-resume-first", approval_id=next_approval_id(pause_events)) + final_events = post("run-resume-second", approval_id=next_approval_id(first_resume_events)) + assert executed == ["first", "second"] + + snapshot_events = [event for event in final_events if event["type"] == "MESSAGES_SNAPSHOT"] + assert snapshot_events + event_messages = snapshot_events[-1]["messages"] + assert tool_result_call_ids(event_messages) == ["call_first", "call_second"] + # Both results follow the call message and precede the model's reply. + assert [message["role"] for message in event_messages] == ["user", "assistant", "tool", "tool", "assistant"] + + saved = await store.get(scope="test", thread_id=thread_id) + assert saved is not None + assert tool_result_call_ids(saved.messages) == ["call_first", "call_second"] + + post("run-next-turn", text="What happened?") + replayed_results = [ + content for message in messages_received for content in message.contents if content.type == "function_result" + ] + assert [content.call_id for content in replayed_results] == ["call_first", "call_second"] + + +async def test_endpoint_approval_snapshot_pairs_result_with_later_turn_reusing_call_id(streaming_chat_client_stub): + """A later approved call reusing an earlier completed call ID keeps both pairs in place.""" + store = InMemoryAGUIThreadSnapshotStore() + executed: list[str] = [] + messages_received: list[Message] = [] + turn = {"number": 0} + + def lookup() -> str: + executed.append(f"turn-{turn['number']}") + return f"result {turn['number']}" + + async def stream_fn( + messages: list[Message], + options: dict[str, Any], + **kwargs: Any, + ) -> AsyncIterator[ChatResponseUpdate]: + del options, kwargs + messages_received[:] = list(messages) + if messages[-1].role == "user": + turn["number"] += 1 + yield ChatResponseUpdate( + contents=[Content.from_function_call(call_id="call_reused", name="lookup", arguments="{}")], + role="assistant", + ) + return + yield ChatResponseUpdate(contents=[Content.from_text(text=f"Done {turn['number']}.")], role="assistant") + + agent = Agent( + name="test_agent", + instructions="Test", + client=streaming_chat_client_stub(stream_fn), + tools=[FunctionTool(name="lookup", description="Lookup", func=lookup, approval_mode="always_require")], + middleware=[ToolApprovalMiddleware()], + ) + app = FastAPI() + add_agent_framework_fastapi_endpoint( + app, + AgentFrameworkAgent(agent=agent, require_confirmation=False), + path="/approval", + snapshot_store=store, + snapshot_scope_resolver=lambda _request: "test", + ) + client = TestClient(app) + thread_id = "thread-reused-call-id-across-turns" + + def post(run_id: str, *, text: str | None = None, approval_id: str | None = None) -> list[dict[str, Any]]: + payload: dict[str, Any] = { + "runId": run_id, + "threadId": thread_id, + "messages": [{"role": "user", "content": text}] if text else [], + } + if approval_id: + payload["resume"] = [{"interruptId": approval_id, "status": "resolved", "payload": {"accepted": True}}] + response = client.post("/approval", json=payload) + assert response.status_code == 200 + events = _decode_sse_events(response) + assert not [event for event in events if event["type"] == "RUN_ERROR"] + return events + + def approval_id(events: list[dict[str, Any]]) -> str: + finished = [event for event in events if event["type"] == "RUN_FINISHED"] + return _run_finished_interrupts(finished[-1])[0]["id"] + + def transcript(messages: list[dict[str, Any]]) -> list[tuple[str, str]]: + entries: list[tuple[str, str]] = [] + for message in messages: + role = message["role"] + if role == "tool": + entries.append( + ("tool", f"{message.get('toolCallId') or message.get('tool_call_id')}={message['content']}") + ) + elif role == "assistant" and (tool_calls := message.get("toolCalls") or message.get("tool_calls")): + entries.append(("call", ",".join(tool_call["id"] for tool_call in tool_calls))) + else: + entries.append((role, message.get("content") or "")) + return entries + + expected = [ + ("user", "First"), + ("call", "call_reused"), + ("tool", "call_reused=result 1"), + ("assistant", "Done 1."), + ("user", "Second"), + ("call", "call_reused"), + ("tool", "call_reused=result 2"), + ("assistant", "Done 2."), + ] + + post("run-first-resume", approval_id=approval_id(post("run-first", text="First"))) + final_events = post("run-second-resume", approval_id=approval_id(post("run-second", text="Second"))) + assert executed == ["turn-1", "turn-2"] + + snapshot_events = [event for event in final_events if event["type"] == "MESSAGES_SNAPSHOT"] + assert snapshot_events + assert transcript(snapshot_events[-1]["messages"]) == expected + + saved = await store.get(scope="test", thread_id=thread_id) + assert saved is not None + assert transcript(saved.messages) == expected + + post("run-third", text="Third") + replayed = [ + (content.type, content.call_id, content.result if content.type == "function_result" else None) + for message in messages_received + for content in message.contents + if content.type in {"function_call", "function_result"} + ] + assert replayed == [ + ("function_call", "call_reused", None), + ("function_result", "call_reused", "result 1"), + ("function_call", "call_reused", None), + ("function_result", "call_reused", "result 2"), + ] + + +async def test_endpoint_skips_abandoned_later_call_reusing_settled_approval_call_id(streaming_chat_client_stub): + """A settled approval retained for replay does not protect a later abandoned call that reuses its ID.""" + store = InMemoryAGUIThreadSnapshotStore() + executed: list[str] = [] + messages_received: list[Message] = [] + + def lookup() -> str: + executed.append("lookup") + return "result 1" + + async def stream_fn( + messages: list[Message], + options: dict[str, Any], + **kwargs: Any, + ) -> AsyncIterator[ChatResponseUpdate]: + del options, kwargs + messages_received[:] = list(messages) + last = messages[-1] + if last.role == "user" and last.text == "First": + yield ChatResponseUpdate( + contents=[Content.from_function_call(call_id="call_reused", name="lookup", arguments="{}")], + role="assistant", + ) + return + if last.role == "user" and last.text == "Second": + yield ChatResponseUpdate( + contents=[Content.from_function_call(call_id="call_reused", name="pick_color", arguments="{}")], + role="assistant", + ) + return + yield ChatResponseUpdate(contents=[Content.from_text(text="Done.")], role="assistant") + + agent = Agent( + name="test_agent", + instructions="Test", + client=streaming_chat_client_stub(stream_fn), + tools=[FunctionTool(name="lookup", description="Lookup", func=lookup, approval_mode="always_require")], + middleware=[ToolApprovalMiddleware()], + ) + wrapped_agent = AgentFrameworkAgent(agent=agent, require_confirmation=False) + app = FastAPI() + add_agent_framework_fastapi_endpoint( + app, + wrapped_agent, + path="/approval", + snapshot_store=store, + snapshot_scope_resolver=lambda _request: "test", + ) + client = TestClient(app) + thread_id = "thread-reused-call-id-abandoned" + client_tool = {"name": "pick_color", "description": "Pick a color", "parameters": {"type": "object"}} + + def post(run_id: str, *, text: str | None = None, approval_id: str | None = None) -> list[dict[str, Any]]: + payload: dict[str, Any] = { + "runId": run_id, + "threadId": thread_id, + "messages": [{"role": "user", "content": text}] if text else [], + "tools": [client_tool], + } + if approval_id: + payload["resume"] = [{"interruptId": approval_id, "status": "resolved", "payload": {"accepted": True}}] + response = client.post("/approval", json=payload) + assert response.status_code == 200 + events = _decode_sse_events(response) + assert not [event for event in events if event["type"] == "RUN_ERROR"] + return events + + first_events = post("run-first", text="First") + first_finished = [event for event in first_events if event["type"] == "RUN_FINISHED"] + post("run-first-resume", approval_id=_run_finished_interrupts(first_finished[-1])[0]["id"]) + assert executed == ["lookup"] - final_resume = client.post( - "/approval", - json={ - "runId": "run-resume-second", - "threadId": "thread-queued-approval", - "messages": [], - "resume": [{"interruptId": second_approval_id, "status": "resolved", "payload": {"accepted": True}}], - }, + # The settled approval stays in the lifecycle for replay while the next turn reuses its call ID. + occurrences = wrapped_agent._approval_state_store.lifecycle.occurrences_for_thread( + thread_id=approval_state_thread_id(scope="test", thread_id=thread_id) ) + assert [(occurrence.identity.call_id, occurrence.status.is_terminal) for occurrence in occurrences] == [ + ("call_reused", True) + ] - assert final_resume.status_code == 200 - final_events = _decode_sse_events(final_resume) - final_tool_results = [event for event in final_events if event.get("type") == "TOOL_CALL_RESULT"] - assert [(event["toolCallId"], event["content"]) for event in final_tool_results] == [ - ("call_first", "first result"), - ("call_second", "second result"), + post("run-second", text="Second") + # The client never answers the client tool call and moves on. + post("run-third", text="Never mind") + + replayed = [ + (content.type, content.call_id, content.result if content.type == "function_result" else None) + for message in messages_received + for content in message.contents + if content.type in {"function_call", "function_result"} ] - assert executed == ["first", "second"] - replayed_results = [ - content for message in messages_received for content in message.contents if content.type == "function_result" + assert [entry[:2] for entry in replayed] == [ + ("function_call", "call_reused"), + ("function_result", "call_reused"), + ("function_call", "call_reused"), + ("function_result", "call_reused"), ] - assert [content.call_id for content in replayed_results] == ["call_first", "call_second"] + assert replayed[1][2] == "result 1" + assert "Tool execution skipped" in str(replayed[3][2]) @pytest.mark.parametrize("retry_time", [25.0, 33.0]) @@ -7023,7 +7960,7 @@ async def test_endpoint_agent_approval_cancel_clears_queued_state_when_visible_e approval_id = interrupts[0]["id"] assert approval_id.startswith("af-call-") assert interrupts[0]["toolCallId"] == "call_first" - approval_thread_id = _unscoped_approval_thread_id("thread-queued-cancel-evicted") + approval_thread_id = _default_approval_thread_id("thread-queued-cancel-evicted") stored_state = wrapped_agent._approval_state_store.get_tool_approval_state(approval_thread_id) assert stored_state is not None assert "call_second" in json.dumps(stored_state) @@ -7308,9 +8245,8 @@ async def test_endpoint_agent_approval_resume_wrong_thread_emits_run_error(): async def test_endpoint_agent_approval_resume_wrong_scope_emits_run_error_without_snapshot_store(): - """Approval State is scoped independently of AG-UI Thread Snapshots.""" + """Authenticated callers with the same Thread id cannot consume each other's pending approval.""" executed_cities: list[str] = [] - scope = {"value": "tenant-a"} def get_weather(city: str) -> str: executed_cities.append(city) @@ -7334,17 +8270,24 @@ def get_weather(city: str) -> str: updates=[AgentResponseUpdate(contents=[approval_request], role="assistant")], default_options={"tools": [weather_tool]}, ) + + async def resolve_authorization_scope(x_principal: str = Header()) -> str: + if x_principal not in {"tenant-a", "tenant-b"}: + raise HTTPException(status_code=403, detail="Unknown principal.") + return x_principal + app = FastAPI() add_agent_framework_fastapi_endpoint( app, AgentFrameworkAgent(agent=agent, require_confirmation=False), path="/approval-scoped", - snapshot_scope_resolver=lambda _request: scope["value"], + authorization_scope_resolver=resolve_authorization_scope, ) client = TestClient(app) pause_response = client.post( "/approval-scoped", + headers={"x-principal": "tenant-a"}, json={ "runId": "run-pause", "threadId": "thread-weather", @@ -7355,10 +8298,10 @@ def get_weather(city: str) -> str: pause_finished = [event for event in _decode_sse_events(pause_response) if event.get("type") == "RUN_FINISHED"] assert _run_finished_interrupts(pause_finished[-1])[0]["id"] == "call_get_weather" - scope["value"] = "tenant-b" agent.updates = [AgentResponseUpdate(contents=[Content.from_text(text="Should not run.")], role="assistant")] response = client.post( "/approval-scoped", + headers={"x-principal": "tenant-b"}, json={ "runId": "run-wrong-scope", "threadId": "thread-weather", @@ -7375,6 +8318,21 @@ def get_weather(city: str) -> str: assert executed_cities == [] assert not [event for event in events if event.get("type") == "TOOL_CALL_RESULT"] + owner_response = client.post( + "/approval-scoped", + headers={"x-principal": "tenant-a"}, + json={ + "runId": "run-owner-resume", + "threadId": "thread-weather", + "messages": [], + "resume": [{"interruptId": "call_get_weather", "status": "resolved", "payload": {"accepted": True}}], + }, + ) + + assert owner_response.status_code == 200 + assert executed_cities == ["Seattle"] + assert not [event for event in _decode_sse_events(owner_response) if event.get("type") == "RUN_ERROR"] + async def test_endpoint_agent_approval_function_name_mismatch_message_does_not_execute_tool(): """Client-supplied approval messages cannot swap the server-owned pending tool name.""" @@ -8528,6 +9486,164 @@ async def test_endpoint_workflow_request_info_rejects_cancellation_from_differen assert "Booked United" in text_deltas +def _flight_choice_resume(airline: str, *, thread_id: str | None = None, **extra: Any) -> dict[str, Any]: + payload: dict[str, Any] = { + "runId": f"run-resume-{airline}", + "messages": [], + "resume": [{"interruptId": "flight-choice", "status": "resolved", "payload": {"airline": airline}}], + **extra, + } + if thread_id is not None: + payload["threadId"] = thread_id + return payload + + +def _reported_thread_ids(events: list[dict[str, Any]]) -> set[str]: + return {event["threadId"] for event in events if event.get("type") in {"RUN_STARTED", "RUN_FINISHED"}} + + +def _assert_resume_not_found(events: list[dict[str, Any]]) -> None: + assert [event["code"] for event in events if event.get("type") == "RUN_ERROR"] == ["WORKFLOW_RESUME_NOT_FOUND"] + assert not [event for event in events if event.get("type") in {"TEXT_MESSAGE_CONTENT", "TOOL_CALL_START"}] + + +async def test_endpoint_workflow_request_info_omitted_thread_binds_interrupt_to_reported_thread(): + """A run without threadId reports one generated id, and only that id continues its interrupt.""" + app = _build_workflow_request_info_app() + + with TestClient(app) as client: + pause_events = _decode_sse_events( + client.post( + "/workflow", + json={"runId": "run-pause", "messages": [{"role": "user", "content": "Book me a flight"}]}, + ) + ) + reported = _reported_thread_ids(pause_events) + assert len(reported) == 1 + thread_id = reported.pop() + + for rejected in ( + _flight_choice_resume("KLM"), + _flight_choice_resume("KLM", thread_id="other-thread"), + {"runId": "run-observe", "messages": []}, + ): + _assert_resume_not_found(_decode_sse_events(client.post("/workflow", json=rejected))) + + resume_events = _decode_sse_events( + client.post("/workflow", json=_flight_choice_resume("United", thread_id=thread_id)) + ) + assert not [event for event in resume_events if event.get("type") == "RUN_ERROR"] + assert _reported_thread_ids(resume_events) == {thread_id} + text_deltas = [event["delta"] for event in resume_events if event.get("type") == "TEXT_MESSAGE_CONTENT"] + assert text_deltas.count("Booked United") == 1 + assert "Booked KLM" not in text_deltas + + +async def test_endpoint_workflow_request_info_omitted_thread_rejects_cancellation_from_other_omitted_thread(): + """A caller that also omits threadId cannot cancel another run's pending interrupt.""" + app = _build_workflow_request_info_app() + + with TestClient(app) as client: + pause_events = _decode_sse_events( + client.post( + "/workflow", + json={"runId": "run-pause", "messages": [{"role": "user", "content": "Book me a flight"}]}, + ) + ) + thread_id = next(iter(_reported_thread_ids(pause_events))) + + cancel_events = _decode_sse_events( + client.post( + "/workflow", + json={ + "runId": "run-cancel", + "messages": [], + "resume": [{"interruptId": "flight-choice", "status": "cancelled"}], + }, + ) + ) + _assert_resume_not_found(cancel_events) + + resume_events = _decode_sse_events( + client.post("/workflow", json=_flight_choice_resume("United", thread_id=thread_id)) + ) + assert not [event for event in resume_events if event.get("type") == "RUN_ERROR"] + text_deltas = [event["delta"] for event in resume_events if event.get("type") == "TEXT_MESSAGE_CONTENT"] + assert "Booked United" in text_deltas + + +async def test_endpoint_workflow_request_info_omitted_thread_rejects_resume_from_different_scope(): + """With a Snapshot Scope, neither an omitted nor the reported thread id lets another scope resume.""" + + def resolve_scope(request: AGUIRequest) -> str: + forwarded_props = request.forwarded_props + assert forwarded_props is not None + tenant = forwarded_props["tenant"] + assert isinstance(tenant, str) + return tenant + + app = _build_workflow_request_info_app(snapshot_scope_resolver=resolve_scope) + + with TestClient(app) as client: + pause_events = _decode_sse_events( + client.post( + "/workflow", + json={ + "runId": "run-pause", + "messages": [{"role": "user", "content": "Book me a flight"}], + "forwardedProps": {"tenant": "tenant-a"}, + }, + ) + ) + thread_id = next(iter(_reported_thread_ids(pause_events))) + + for rejected in ( + _flight_choice_resume("KLM", forwardedProps={"tenant": "tenant-b"}), + _flight_choice_resume("KLM", thread_id=thread_id, forwardedProps={"tenant": "tenant-b"}), + ): + _assert_resume_not_found(_decode_sse_events(client.post("/workflow", json=rejected))) + + resume_events = _decode_sse_events( + client.post( + "/workflow", + json=_flight_choice_resume("United", thread_id=thread_id, forwardedProps={"tenant": "tenant-a"}), + ) + ) + assert not [event for event in resume_events if event.get("type") == "RUN_ERROR"] + text_deltas = [event["delta"] for event in resume_events if event.get("type") == "TEXT_MESSAGE_CONTENT"] + assert "Booked United" in text_deltas + + +async def test_endpoint_workflow_omitted_thread_snapshot_hydrates_by_reported_thread_id(): + """The Thread Snapshot of a run without threadId is stored under the id its events report.""" + store = InMemoryAGUIThreadSnapshotStore() + app = FastAPI() + add_agent_framework_fastapi_endpoint( + app, + _build_flight_choice_workflow(), + path="/workflow", + snapshot_store=store, + snapshot_scope_resolver=lambda _request: "tenant-a", + ) + + with TestClient(app) as client: + pause_events = _decode_sse_events( + client.post( + "/workflow", + json={"runId": "run-pause", "messages": [{"role": "user", "content": "Book me a flight"}]}, + ) + ) + thread_id = next(iter(_reported_thread_ids(pause_events))) + assert await store.get(scope="tenant-a", thread_id=thread_id) is not None + + hydrate_events = _decode_sse_events( + client.post("/workflow", json={"runId": "run-hydrate", "threadId": thread_id, "messages": []}) + ) + snapshots = [event for event in hydrate_events if event.get("type") == "MESSAGES_SNAPSHOT"] + assert snapshots + assert "Book me a flight" in json.dumps(snapshots[-1]["messages"]) + + async def test_endpoint_workflow_request_info_remains_owned_after_client_disconnect(): """Disconnecting after an interrupt is visible does not release its thread ownership.""" app = _build_workflow_request_info_app() @@ -8617,6 +9733,25 @@ async def test_owned_checkpoint_storage_stamps_owner_without_pending_events() -> assert stored.metadata[_CHECKPOINT_REQUEST_OWNER_KEY] == expected_owner +async def test_owned_checkpoint_storage_accepts_generated_thread_alias_only_within_scope() -> None: + """A checkpoint of a run without threadId is also owned by its generated id, in the same scope only.""" + storage = InMemoryCheckpointStorage() + writer = _OwnedWorkflowCheckpointStorage(storage, ("scope-1", None), generated_thread_id="generated-1") + checkpoint_id = await writer.save(WorkflowCheckpoint(workflow_name="owned-workflow", graph_signature_hash="sig")) + + for accepted_owner in (("scope-1", None), ("scope-1", "generated-1")): + loaded = await _OwnedWorkflowCheckpointStorage(storage, accepted_owner).load(checkpoint_id) + assert loaded.checkpoint_id == checkpoint_id + for rejected_owner in (("scope-1", "other-thread"), ("scope-2", "generated-1"), (None, "generated-1")): + with pytest.raises(PermissionError): + await _OwnedWorkflowCheckpointStorage(storage, rejected_owner).load(checkpoint_id) + + supplied = _OwnedWorkflowCheckpointStorage(storage, ("scope-1", "supplied-1"), generated_thread_id=None) + supplied_id = await supplied.save(WorkflowCheckpoint(workflow_name="owned-workflow", graph_signature_hash="sig")) + with pytest.raises(PermissionError): + await _OwnedWorkflowCheckpointStorage(storage, ("scope-1", None)).load(supplied_id) + + async def test_owned_checkpoint_storage_filters_and_rejects_foreign_checkpoints() -> None: """Owned storage never exposes or deletes another request owner's checkpoints.""" storage = InMemoryCheckpointStorage() @@ -9050,7 +10185,7 @@ async def test_endpoint_builder_checkpoint_storage_rejects_different_thread_afte assert pending_checkpoints checkpoint = max(pending_checkpoints, key=lambda item: item.timestamp) assert checkpoint.metadata[_CHECKPOINT_REQUEST_OWNER_KEY] == { - "snapshot_scope": None, + "snapshot_scope": _DEFAULT_AUTHORIZATION_SCOPE, "thread_id": "victim-thread", } @@ -9110,11 +10245,59 @@ async def test_endpoint_builder_checkpoint_storage_ignores_stale_runtime_owner() assert pending_checkpoints checkpoint = max(pending_checkpoints, key=lambda item: item.timestamp) assert checkpoint.metadata[_CHECKPOINT_REQUEST_OWNER_KEY] == { - "snapshot_scope": None, + "snapshot_scope": _DEFAULT_AUTHORIZATION_SCOPE, "thread_id": "current-thread", } +async def test_endpoint_workflow_checkpoint_resume_with_reported_thread_id(): + """After a restart, a run without threadId resumes from its checkpoint using the id its events reported.""" + storage = InMemoryCheckpointStorage() + first_app = FastAPI() + first_workflow = _build_flight_choice_workflow() + add_agent_framework_fastapi_endpoint(first_app, first_workflow, path="/workflow", checkpoint_storage=storage) + + with TestClient(first_app) as client: + pause_events = _decode_sse_events( + client.post( + "/workflow", + json={"runId": "run-pause", "messages": [{"role": "user", "content": "Book me a flight"}]}, + ) + ) + thread_id = next(event["threadId"] for event in pause_events if event.get("type") == "RUN_STARTED") + + checkpoints = await storage.list_checkpoints(workflow_name=first_workflow.name) + pending_checkpoints = [checkpoint for checkpoint in checkpoints if checkpoint.pending_request_info_events] + checkpoint = max(pending_checkpoints, key=lambda item: item.timestamp) + assert checkpoint.metadata[_CHECKPOINT_REQUEST_OWNER_KEY] == { + "snapshot_scope": _DEFAULT_AUTHORIZATION_SCOPE, + "thread_id": None, + "generated_thread_id": thread_id, + } + + def resume_payload(thread_id_value: str) -> dict[str, Any]: + return { + "runId": "run-resume", + "threadId": thread_id_value, + "messages": [], + "forwardedProps": {"checkpointId": checkpoint.checkpoint_id}, + "resume": [{"interruptId": "flight-choice", "status": "resolved", "payload": {"airline": "KLM"}}], + } + + second_app = FastAPI() + add_agent_framework_fastapi_endpoint( + second_app, _build_flight_choice_workflow(), path="/workflow", checkpoint_storage=storage + ) + with TestClient(second_app) as client: + rejected = _decode_sse_events(client.post("/workflow", json=resume_payload("other-thread"))) + _assert_resume_not_found(rejected) + + resumed = _decode_sse_events(client.post("/workflow", json=resume_payload(thread_id))) + assert not [event for event in resumed if event.get("type") == "RUN_ERROR"] + text_deltas = [event["delta"] for event in resumed if event.get("type") == "TEXT_MESSAGE_CONTENT"] + assert "Booked KLM" in text_deltas + + async def test_endpoint_workflow_checkpoint_resume_without_thread_remains_supported(): """Legacy unthreaded checkpoint resumes remain compatible after wrapper restart.""" storage = InMemoryCheckpointStorage() @@ -9689,12 +10872,11 @@ async def second_dependency(): async def test_endpoint_without_dependencies_is_accessible(build_chat_client): - """Test that endpoint without dependencies remains accessible (backward compatibility).""" + """An explicitly single-user endpoint remains accessible without authentication dependencies.""" app = FastAPI() agent = Agent(name="test", instructions="Test agent", client=build_chat_client()) - # No dependencies parameter - should be accessible without auth - add_agent_framework_fastapi_endpoint(app, agent, path="/open") + add_agent_framework_fastapi_endpoint(app, agent, path="/open", single_user=True) client = TestClient(app) response = client.post("/open", json={"messages": [{"role": "user", "content": "Hello"}]}) @@ -9711,24 +10893,151 @@ async def test_endpoint_invalid_agent_type_raises_typeerror(): add_agent_framework_fastapi_endpoint(app, agent="not_an_agent") # type: ignore[arg-type] # ty: ignore[invalid-argument-type] -async def test_endpoint_requires_snapshot_scope_resolver_when_store_configured(build_chat_client): - """Snapshot persistence setup must require an explicit Snapshot Scope resolver.""" +async def test_endpoint_requires_explicit_authorization_mode(build_chat_client): + """Endpoint registration must choose authenticated scoping or explicit single-user operation.""" + app = FastAPI() + agent = Agent(name="test", instructions="Test agent", client=build_chat_client()) + + with pytest.raises(ValueError, match="authorization must be explicit"): + _add_agent_framework_fastapi_endpoint(app, agent, path="/unconfigured") + + +async def test_endpoint_snapshot_store_requires_explicit_authorization_mode(build_chat_client): + """Snapshot persistence cannot bypass the endpoint's explicit authorization-mode requirement.""" app = FastAPI() agent = Agent(name="test", instructions="Test agent", client=build_chat_client()) store = InMemoryAGUIThreadSnapshotStore() - with pytest.raises(ValueError, match="snapshot_scope_resolver is required"): - add_agent_framework_fastapi_endpoint(app, agent, path="/snapshots", snapshot_store=store) + with pytest.raises(ValueError, match="authorization must be explicit"): + _add_agent_framework_fastapi_endpoint(app, agent, path="/snapshots", snapshot_store=store) + + +async def test_endpoint_wrapped_snapshot_store_requires_explicit_authorization_mode(build_chat_client): + """A pre-wrapped snapshot store cannot bypass the explicit authorization-mode requirement.""" + app = FastAPI() + runner = AgentFrameworkAgent( + agent=Agent(name="test", instructions="Test agent", client=build_chat_client()), + snapshot_store=InMemoryAGUIThreadSnapshotStore(), + ) + + with pytest.raises(ValueError, match="authorization must be explicit"): + _add_agent_framework_fastapi_endpoint(app, runner, path="/wrapped-snapshots") + + +async def test_endpoint_rejects_conflicting_authorization_modes(build_chat_client): + """An endpoint cannot silently choose between authenticated and single-user ownership.""" + app = FastAPI() + agent = Agent(name="test", instructions="Test agent", client=build_chat_client()) + + with pytest.raises(ValueError, match="exactly one AG-UI authorization mode"): + _add_agent_framework_fastapi_endpoint( + app, + agent, + path="/conflicting", + authorization_scope_resolver=lambda: "tenant-a", + single_user=True, + ) + + +async def test_endpoint_rejects_non_boolean_single_user_mode(build_chat_client): + """The explicit single-user escape hatch cannot be enabled by a truthy non-boolean value.""" + app = FastAPI() + agent = Agent(name="test", instructions="Test agent", client=build_chat_client()) + + with pytest.raises(TypeError, match="single_user must be a bool"): + _add_agent_framework_fastapi_endpoint( + app, + agent, + path="/invalid-single-user", + single_user="yes", # type: ignore[arg-type] # ty: ignore[invalid-argument-type] + ) + + +async def test_endpoint_authorization_scope_resolver_uses_fastapi_dependencies(build_chat_client): + """The authorization resolver can consume normal FastAPI authentication dependencies.""" + app = FastAPI() + agent = Agent(name="test", instructions="Test agent", client=build_chat_client()) + authenticated: list[str] = [] + + async def authenticate(x_api_key: str | None = Header(None)) -> str: + if x_api_key != "secret-key": + raise HTTPException(status_code=401, detail="Unauthorized") + authenticated.append("principal-a") + return "principal-a" + + async def resolve_authorization_scope(principal: Annotated[str, Depends(authenticate)]) -> str: + return principal + + add_agent_framework_fastapi_endpoint( + app, + agent, + path="/scoped", + authorization_scope_resolver=resolve_authorization_scope, + ) + client = TestClient(app) + + unauthorized = client.post("/scoped", json={"messages": [{"role": "user", "content": "Hello"}]}) + authorized = client.post( + "/scoped", + headers={"x-api-key": "secret-key"}, + json={"messages": [{"role": "user", "content": "Hello"}]}, + ) + + assert unauthorized.status_code == 401 + assert authorized.status_code == 200 + assert authenticated == ["principal-a"] -async def test_endpoint_requires_snapshot_scope_resolver_when_wrapped_runner_has_store(build_chat_client): - """Pre-wrapped runners with snapshot stores must also provide a Snapshot Scope resolver.""" +async def test_endpoint_authorization_scope_resolver_awaits_sync_dependency_result(build_chat_client): + """A synchronous FastAPI dependency may return an awaitable scope.""" app = FastAPI() agent = Agent(name="test", instructions="Test agent", client=build_chat_client()) - wrapped_agent = AgentFrameworkAgent(agent=agent, snapshot_store=InMemoryAGUIThreadSnapshotStore()) + completed: list[str] = [] + + async def resolve_later() -> str: + completed.append("tenant-a") + return "tenant-a" + + def resolve_authorization_scope() -> Awaitable[str]: + return resolve_later() + + add_agent_framework_fastapi_endpoint( + app, + agent, + path="/awaitable-scope", + authorization_scope_resolver=resolve_authorization_scope, + ) + client = TestClient(app) + + response = client.post("/awaitable-scope", json={"messages": [{"role": "user", "content": "Hello"}]}) + + assert response.status_code == 200 + assert completed == ["tenant-a"] + - with pytest.raises(ValueError, match="snapshot_scope_resolver is required"): - add_agent_framework_fastapi_endpoint(app, wrapped_agent, path="/snapshots") +async def test_endpoint_invalid_authorization_scope_fails_before_runner(build_chat_client): + """A configured resolver cannot fall back to unscoped operation.""" + app = FastAPI() + runner = AgentFrameworkAgent(agent=Agent(name="test", instructions="Test agent", client=build_chat_client())) + run_spy = AsyncMock(wraps=runner.run) + + async def invalid_scope() -> str: + return "" + + runner.run = run_spy # type: ignore[method-assign] + add_agent_framework_fastapi_endpoint( + app, + runner, + path="/invalid-scope", + authorization_scope_resolver=invalid_scope, + ) + client = TestClient(app, raise_server_exceptions=False) + + response = client.post("/invalid-scope", json={"messages": [{"role": "user", "content": "Hello"}]}) + + assert response.status_code == 500 + assert response.json() == {"detail": "An internal error has occurred."} + run_spy.assert_not_called() async def test_endpoint_accepts_snapshot_store_with_scope_resolver(build_chat_client): @@ -9755,6 +11064,55 @@ async def test_endpoint_accepts_snapshot_store_with_scope_resolver(build_chat_cl assert response.headers["content-type"] == "text/event-stream; charset=utf-8" +async def test_endpoint_accepts_snapshot_store_in_single_user_mode(build_chat_client): + """Single-user scopes remain stable per registration and distinct across equal route paths.""" + observed_scopes: list[str] = [] + + class RecordingStore(InMemoryAGUIThreadSnapshotStore): + async def save( + self, + *, + scope: str, + thread_id: str, + snapshot: AGUIThreadSnapshot, + ) -> None: + observed_scopes.append(scope) + await super().save(scope=scope, thread_id=thread_id, snapshot=snapshot) + + store = RecordingStore() + app_a = FastAPI() + app_b = FastAPI() + add_agent_framework_fastapi_endpoint( + app_a, + Agent(name="agent-a", instructions="Test agent", client=build_chat_client("A")), + path="/", + snapshot_store=store, + single_user=True, + ) + add_agent_framework_fastapi_endpoint( + app_b, + Agent(name="agent-b", instructions="Test agent", client=build_chat_client("B")), + path="/", + snapshot_store=store, + single_user=True, + ) + client_a = TestClient(app_a) + client_b = TestClient(app_b) + payload = { + "messages": [{"role": "user", "content": "Hello"}], + "thread_id": "shared-thread", + } + + assert client_a.post("/", json=payload).status_code == 200 + scope_a = observed_scopes[-1] + assert client_b.post("/", json=payload).status_code == 200 + scope_b = observed_scopes[-1] + assert client_a.post("/", json=payload).status_code == 200 + + assert scope_a != scope_b + assert observed_scopes[-1] == scope_a + + @pytest.mark.parametrize("async_resolver", [False, True], ids=["sync", "async"]) @pytest.mark.parametrize("persist_snapshots", [False, True], ids=["stateless", "snapshots"]) @pytest.mark.parametrize("request_kind", ["run", "hydrate", "resume"]) @@ -11806,7 +13164,10 @@ def approval_update(approval_id: str, call_id: str) -> AgentResponseUpdate: first_pause = client.post( "/workflow-agent-approval", - json={"messages": [{"role": "user", "content": "First refund"}]}, + json={ + "threadId": "thread-agent-approval", + "messages": [{"role": "user", "content": "First refund"}], + }, ) assert first_pause.status_code == 200 first_finished = [event for event in _decode_sse_events(first_pause) if event.get("type") == "RUN_FINISHED"] @@ -11815,6 +13176,7 @@ def approval_update(approval_id: str, call_id: str) -> AgentResponseUpdate: cancelled = client.post( "/workflow-agent-approval", json={ + "threadId": "thread-agent-approval", "messages": [], "resume": [{"interruptId": "approval-1", "status": "cancelled"}], }, @@ -11824,7 +13186,10 @@ def approval_update(approval_id: str, call_id: str) -> AgentResponseUpdate: agent.updates = [approval_update("approval-2", "refund-call-2")] second_pause = client.post( "/workflow-agent-approval", - json={"messages": [{"role": "user", "content": "Second refund"}]}, + json={ + "threadId": "thread-agent-approval", + "messages": [{"role": "user", "content": "Second refund"}], + }, ) assert second_pause.status_code == 200 second_finished = [event for event in _decode_sse_events(second_pause) if event.get("type") == "RUN_FINISHED"] @@ -11836,6 +13201,7 @@ def approval_update(approval_id: str, call_id: str) -> AgentResponseUpdate: resumed = client.post( "/workflow-agent-approval", json={ + "threadId": "thread-agent-approval", "messages": [], "resume": [{"interruptId": "approval-2", "status": "resolved", "payload": {"approved": True}}], }, @@ -12440,7 +13806,7 @@ async def stream_fn( assert not [event for event in _decode_sse_events(resume_response) if event.get("type") == "RUN_ERROR"] assert local_executions == [] assert not wrapped_agent._approval_state_store.lifecycle.pending_interrupt_ids( - thread_id=_unscoped_approval_thread_id("thread-hosted-approval") + thread_id=_default_approval_thread_id("thread-hosted-approval") ) approval_responses = [ content @@ -12668,7 +14034,7 @@ async def stream_fn( assert resume_response.status_code == 200 assert local_executions == ["Approved draft"] assert not wrapped_agent._approval_state_store.lifecycle.pending_interrupt_ids( - thread_id=_unscoped_approval_thread_id("thread-local-approval") + thread_id=_default_approval_thread_id("thread-local-approval") ) state_snapshots = [ event["snapshot"] for event in _decode_sse_events(resume_response) if event.get("type") == "STATE_SNAPSHOT" diff --git a/python/packages/ag-ui/tests/ag_ui/test_handoff_replay.py b/python/packages/ag-ui/tests/ag_ui/test_handoff_replay.py index bd3b473ffd3..c273317f704 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_handoff_replay.py +++ b/python/packages/ag-ui/tests/ag_ui/test_handoff_replay.py @@ -135,7 +135,13 @@ async def test_outer_agent_replays_balanced_handoff_on_second_turn() -> None: workflow_factory=lambda _thread_id: _build_handoff_workflow(triage_requests) ) app = FastAPI() - add_agent_framework_fastapi_endpoint(app, workflow_runner, path="/workflow", keepalive_seconds=None) + add_agent_framework_fastapi_endpoint( + app, + workflow_runner, + path="/workflow", + keepalive_seconds=None, + single_user=True, + ) transport = httpx.ASGITransport(app=app) async with httpx.AsyncClient(transport=transport, base_url="http://testserver") as http_client: diff --git a/python/packages/ag-ui/tests/ag_ui/test_http_round_trip.py b/python/packages/ag-ui/tests/ag_ui/test_http_round_trip.py index 115bb46b5d6..20db812e435 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_http_round_trip.py +++ b/python/packages/ag-ui/tests/ag_ui/test_http_round_trip.py @@ -26,7 +26,7 @@ def _build_app_with_agent(updates: list[AgentResponseUpdate], **kwargs: Any) -> stub = StubAgent(updates=updates) agent = AgentFrameworkAgent(agent=stub, **kwargs) app = FastAPI() - add_agent_framework_fastapi_endpoint(app, agent) + add_agent_framework_fastapi_endpoint(app, agent, single_user=True) return app @@ -34,7 +34,7 @@ def _build_app_with_workflow(workflow_builder: WorkflowBuilder) -> FastAPI: workflow = workflow_builder.build() wrapper = AgentFrameworkWorkflow(workflow=workflow) app = FastAPI() - add_agent_framework_fastapi_endpoint(app, wrapper) + add_agent_framework_fastapi_endpoint(app, wrapper, single_user=True) return app diff --git a/python/packages/ag-ui/tests/ag_ui/test_message_adapters.py b/python/packages/ag-ui/tests/ag_ui/test_message_adapters.py index 53c77c9bad4..22bf0d38be8 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_message_adapters.py +++ b/python/packages/ag-ui/tests/ag_ui/test_message_adapters.py @@ -2276,6 +2276,32 @@ def test_sanitize_pending_tool_skip_on_user_followup(): assert "skipped" in str(tool_results[0].contents[0].result).lower() +def test_sanitize_skips_abandoned_later_turn_reusing_completed_call_id(): + """A result from an earlier turn does not stop a later abandoned call reusing its ID from being skipped.""" + from agent_framework_ag_ui._message_adapters import _sanitize_tool_history + + def call() -> Message: + return Message( + role="assistant", + contents=[Content.from_function_call(call_id="reused", name="get_weather", arguments="{}")], + ) + + messages = [ + Message(role="user", contents=[Content.from_text(text="First")]), + call(), + Message(role="tool", contents=[Content.from_function_result(call_id="reused", result="sunny")]), + Message(role="user", contents=[Content.from_text(text="Second")]), + call(), + Message(role="user", contents=[Content.from_text(text="Actually, never mind")]), + ] + + result = _sanitize_tool_history(messages) + + assert [msg.role for msg in result] == ["user", "assistant", "tool", "user", "assistant", "tool", "user"] + assert result[2].contents[0].result == "sunny" + assert "skipped" in str(result[5].contents[0].result).lower() + + def test_sanitize_pending_tool_does_not_skip_server_owned_approval_call(): """Server-owned approval state means a pending tool call is not abandoned.""" from agent_framework_ag_ui._message_adapters import _sanitize_tool_history @@ -2362,6 +2388,60 @@ def test_sanitize_history_ending_with_tool_call_closes_pending_call(): assert all("skipped" in str(msg.contents[0].result).lower() for msg in result[1:]) +def test_sanitize_history_keeps_every_result_for_reused_call_id(): + """Each function call occurrence sharing a provider call ID keeps its own result.""" + from agent_framework_ag_ui._message_adapters import _sanitize_tool_history + + for call_ids in [("shared",) * 3, ("call-a", "call-b", "call-c")]: + messages = [ + Message( + role="assistant", + contents=[ + Content.from_function_call(id=f"occurrence-{n}", call_id=call_id, name=f"tool_{n}", arguments="{}") + for n, call_id in enumerate(call_ids) + ], + ) + ] + messages += [ + Message(role="tool", contents=[Content.from_function_result(call_id=call_id, result=f"result-{n}")]) + for n, call_id in enumerate(call_ids) + ] + messages.append(Message(role="user", contents=[Content.from_text(text="Thanks")])) + + result = _sanitize_tool_history(messages) + + assert [msg.role for msg in result] == ["assistant", "tool", "tool", "tool", "user"] + assert [content.result for msg in result for content in msg.contents if content.type == "function_result"] == [ + "result-0", + "result-1", + "result-2", + ] + + +def test_sanitize_history_drops_results_beyond_reused_call_id_occurrences(): + """Results for a reused call ID beyond the declared occurrences are still dropped.""" + from agent_framework_ag_ui._message_adapters import _sanitize_tool_history + + assistant_msg = Message( + role="assistant", + contents=[ + Content.from_function_call(call_id="shared", name="tool_a", arguments="{}"), + Content.from_function_call(call_id="shared", name="tool_b", arguments="{}"), + ], + ) + tool_msgs = [ + Message(role="tool", contents=[Content.from_function_result(call_id="shared", result=f"result-{n}")]) + for n in range(3) + ] + + result = _sanitize_tool_history([assistant_msg, *tool_msgs]) + + assert [content.result for msg in result for content in msg.contents if content.type == "function_result"] == [ + "result-0", + "result-1", + ] + + def test_sanitize_tool_result_clears_pending_confirm(): """Tool result for pending confirm_changes call_id clears pending state.""" from agent_framework_ag_ui._message_adapters import _sanitize_tool_history @@ -2437,6 +2517,63 @@ def test_deduplicate_tool_results(): assert len(result) == 1 +def test_deduplicate_keeps_one_tool_result_per_reused_call_id_occurrence(): + """Results for a call ID reused by several function calls are kept once per occurrence.""" + from agent_framework_ag_ui._message_adapters import _deduplicate_messages + + assistant_msg = Message( + role="assistant", + contents=[Content.from_function_call(call_id="shared", name=f"tool_{n}", arguments="{}") for n in range(3)], + ) + tool_msgs = [ + Message(role="tool", contents=[Content.from_function_result(call_id="shared", result=f"result-{n}")]) + for n in range(3) + ] + replayed = Message(role="tool", contents=[Content.from_function_result(call_id="shared", result="result-0")]) + + result = _deduplicate_messages([assistant_msg, *tool_msgs, replayed]) + + assert [content.result for msg in result for content in msg.contents if content.type == "function_result"] == [ + "result-0", + "result-1", + "result-2", + ] + + +def test_deduplicate_keeps_later_turn_reusing_call_id(): + """A later turn reusing a completed call ID keeps its own call and result; a replay is still dropped.""" + from agent_framework_ag_ui._message_adapters import _deduplicate_messages + + def call(message_id: str) -> Message: + return Message( + role="assistant", + contents=[Content.from_function_call(call_id="reused", name="lookup", arguments="{}")], + message_id=message_id, + ) + + def result(message_id: str, value: str) -> Message: + return Message( + role="tool", + contents=[Content.from_function_result(call_id="reused", result=value)], + message_id=message_id, + ) + + messages = [ + Message(role="user", contents=[Content.from_text(text="First")], message_id="user-1"), + call("call-1"), + result("result-1", "first"), + Message(role="user", contents=[Content.from_text(text="Second")], message_id="user-2"), + call("call-2"), + result("result-2", "second"), + call("call-2"), + result("result-2-replayed", "second"), + ] + + deduplicated = _deduplicate_messages(messages) + + assert [msg.message_id for msg in deduplicated] == ["user-1", "call-1", "result-1", "user-2", "call-2", "result-2"] + + def test_deduplicate_assistant_tool_calls(): """Duplicate assistant messages with same tool_calls are deduplicated.""" from agent_framework_ag_ui._message_adapters import _deduplicate_messages diff --git a/python/packages/ag-ui/tests/ag_ui/test_multi_turn.py b/python/packages/ag-ui/tests/ag_ui/test_multi_turn.py index 3fa1cc5d245..06aa20f4272 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_multi_turn.py +++ b/python/packages/ag-ui/tests/ag_ui/test_multi_turn.py @@ -35,7 +35,7 @@ def _build_app_with_agent(updates: list[AgentResponseUpdate], **kwargs: Any) -> stub = StubAgent(updates=updates) agent = AgentFrameworkAgent(agent=stub, **kwargs) app = FastAPI() - add_agent_framework_fastapi_endpoint(app, agent) + add_agent_framework_fastapi_endpoint(app, agent, single_user=True) return app diff --git a/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py b/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py index c5982f5b9e0..e82a410c870 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py +++ b/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py @@ -317,6 +317,6 @@ def test_approval_snapshot_rebuild_keeps_tool_result_media() -> None: """Rebuilding tool messages for an approval snapshot keeps an earlier result's media as content parts.""" rebuilt = _resolved_tool_result_snapshot_messages([Message(role="tool", contents=[_image_result("call-1")])]) - assert rebuilt["call-1"]["content"] == [ + assert rebuilt[("call-1", 1)][0]["content"] == [ {"type": "image", "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}} ] diff --git a/python/packages/ag-ui/tests/ag_ui/test_public_exports.py b/python/packages/ag-ui/tests/ag_ui/test_public_exports.py index 5e76248e888..8825852dbe8 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_public_exports.py +++ b/python/packages/ag-ui/tests/ag_ui/test_public_exports.py @@ -62,6 +62,7 @@ def test_core_ag_ui_lazy_exports_include_snapshot_primitives() -> None: """Core facade must expose snapshot primitives needed for endpoint configuration.""" from agent_framework import ag_ui + assert hasattr(ag_ui, "AuthorizationScopeResolver") assert hasattr(ag_ui, "AGUIThreadSnapshot") assert hasattr(ag_ui, "AGUIThreadSnapshotStore") assert hasattr(ag_ui, "InMemoryAGUIThreadSnapshotStore") diff --git a/python/packages/ag-ui/tests/ag_ui/test_run.py b/python/packages/ag-ui/tests/ag_ui/test_run.py index 8961d331f76..6aa7aab5afc 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_run.py +++ b/python/packages/ag-ui/tests/ag_ui/test_run.py @@ -29,21 +29,26 @@ Content, Message, ResponseStream, + ToolApprovalRule, + ToolApprovalState, ) from agent_framework.exceptions import AgentInvalidResponseException, ResponseInvalidatedException from conftest import StubAgent # pyrefly: ignore[missing-import] # pyright: ignore[reportMissingImports] from agent_framework_ag_ui._agent import AgentConfig from agent_framework_ag_ui._agent_run import ( + _TOOL_APPROVAL_STATE_FIELDS, _build_messages_snapshot, _build_safe_metadata, _canonical_approval_resume_messages, + _carries_tool_approval_authority, _create_state_context_message, _filter_local_approval_responses_for_provider, _inject_state_context, _normalize_response_stream, _resume_to_tool_messages, _should_suppress_intermediate_snapshot, + _tool_approval_state_keys, run_agent_stream, ) from agent_framework_ag_ui._approval_lifecycle import ( @@ -651,10 +656,10 @@ def test_emit_text_continues_existing_message(): def test_emit_text_skips_duplicate_full_message_delta(): - """Test _emit_text skips replayed full-message chunks on an open message.""" + """Test _emit_text skips a replay of the full text after multi-chunk streaming.""" flow = FlowState() - flow.message_id = "existing-id" - flow.accumulated_text = "Case complete." + _emit_text(Content.from_text("Case"), flow) + _emit_text(Content.from_text(" complete."), flow) content = Content.from_text("Case complete.") events = _emit_text(content, flow) @@ -663,6 +668,22 @@ def test_emit_text_skips_duplicate_full_message_delta(): assert flow.accumulated_text == "Case complete." +def test_emit_text_keeps_repeated_single_chunk_delta(): + """A repeated token equal to the whole short text streams as a real delta (#9336).""" + flow = FlowState() + first = _emit_text(Content.from_text("2"), flow) + second = _emit_text(Content.from_text("2"), flow) + assert len(first) == 2 # message start + first delta + assert len(second) == 1 + assert flow.accumulated_text == "22" + + fresh_flow = FlowState() + _emit_text(Content.from_text("ha"), fresh_flow) + repeated = _emit_text(Content.from_text("ha"), fresh_flow) + assert len(repeated) == 1 + assert fresh_flow.accumulated_text == "haha" + + def test_emit_text_skips_when_waiting_for_approval(): """Test _emit_text skips when waiting for approval.""" flow = FlowState() @@ -772,7 +793,12 @@ def test_emit_text_annotation_only_update_starts_a_message_without_an_empty_delt def test_emit_text_replay_emits_only_new_annotations() -> None: - """Suppress repeated text and citations without dropping final-only citations.""" + """A one-chunk duplicate keeps its text and emits only new citation occurrences. + + After a single streamed chunk a duplicate equal to the whole text is treated as a + genuine delta, matching the unannotated policy from issue #9336. The annotation + emission still reconciles occurrences, so a re-sent citation is not duplicated. + """ flow = FlowState() first = Annotation(type="citation", url="https://example.com/first") second = Annotation(type="citation", url="https://example.com/second") @@ -781,11 +807,15 @@ def test_emit_text_replay_emits_only_new_annotations() -> None: events = _emit_text(Content.from_text("Answer", annotations=[first, second]), flow) replay_events = _emit_text(Content.from_text("Answer", annotations=[first, second]), flow) - assert len(events) == 1 - assert isinstance(events[0], CustomEvent) - assert events[0].value == {"messageId": flow.message_id, "annotations": [second]} - assert replay_events == [] - assert flow.accumulated_text == "Answer" + text_events = [event for event in events if isinstance(event, TextMessageContentEvent)] + citation_events = [event for event in events if isinstance(event, CustomEvent)] + assert [event.delta for event in text_events] == ["Answer"] + assert [event.value["annotations"] for event in citation_events] == [[first, second]] + replay_text_events = [event for event in replay_events if isinstance(event, TextMessageContentEvent)] + assert [event.delta for event in replay_text_events] == ["Answer"] + replay_citation_events = [event for event in replay_events if isinstance(event, CustomEvent)] + assert [event.value["annotations"] for event in replay_citation_events] == [[first, second]] + assert flow.accumulated_text == "AnswerAnswerAnswer" def test_emit_text_preserves_identical_annotation_occurrences() -> None: @@ -800,7 +830,11 @@ def test_emit_text_preserves_identical_annotation_occurrences() -> None: assert len(first_events) == len(second_events) == 1 assert all(isinstance(event, CustomEvent) for event in [*first_events, *second_events]) - assert replay_events == [] + # One prior text chunk: the duplicate streams as genuine text with its annotations. + replay_text_events = [event for event in replay_events if isinstance(event, TextMessageContentEvent)] + assert [event.delta for event in replay_text_events] == ["Answer"] + replay_citation_events = [event for event in replay_events if isinstance(event, CustomEvent)] + assert [event.value["annotations"] for event in replay_citation_events] == [[annotation, annotation]] @pytest.mark.parametrize("suppression", ["skip_text", "waiting_for_approval"]) @@ -3760,6 +3794,164 @@ def capture_state(*args: Any, **kwargs: Any) -> Any: assert observed_state == [{"client_value": "available"}] +def test_tool_approval_authority_is_recognized_by_shape_not_encoding() -> None: + """Any non-empty approval list is authority whatever its item encoding; inert shapes are not.""" + authority_states: list[Any] = [ + {"rules": [{"tool_name": "gated_tool"}]}, + {"rules": [[["tool_name", "gated_tool"]]]}, + {"rules": ["not-a-rule"]}, + {"rules": [], "queued_approval_requests": [{}]}, + {"queued_approval_requests": [{}]}, + {"collected_approval_responses": [{}]}, + ] + inert_states: list[Any] = [ + None, + "text", + 1, + [], + {}, + {"rules": []}, + {"rules": None}, + {"rules": {"tool_name": "gated_tool"}}, + {"rules": "gated_tool"}, + {"unrelated": [1]}, + ] + + for authority in authority_states: + assert _carries_tool_approval_authority(authority), authority + for inert in inert_states: + assert not _carries_tool_approval_authority(inert), inert + + +def test_tool_approval_state_keys_find_server_state_whatever_the_source_id() -> None: + """Server-held approval state, as a mapping or a ``ToolApprovalState`` object, is found under any ``source_id``.""" + session_state = { + "custom_approvals": {"rules": []}, + "queued_only": {"queued_approval_requests": []}, + "state_object": ToolApprovalState(rules=[ToolApprovalRule(tool_name="gated_tool")]), + "empty_state_object": ToolApprovalState(), + "document": {"title": "synthetic"}, + "text": "value", + "empty": {}, + } + + assert _tool_approval_state_keys(session_state) == { + "custom_approvals", + "queued_only", + "state_object", + "empty_state_object", + } + + +def test_tool_approval_state_fields_match_tool_approval_state() -> None: + """The literal field names guarding client state track ``ToolApprovalState``, so a new field cannot slip by.""" + assert set(_TOOL_APPROVAL_STATE_FIELDS) == set(ToolApprovalState().to_dict(exclude={"type"})) + + +def test_standalone_fides_default_state_key_matches_core(): + """AG-UI spells the default FIDES key literally, so it must stay identical to the key core's middleware uses.""" + from agent_framework.security import ( + _STANDALONE_SESSION_STATE_KEY, # pyright: ignore[reportPrivateUsage] + ) + + from agent_framework_ag_ui._agent_run import _FIDES_SESSION_STATE_KEY + + assert _FIDES_SESSION_STATE_KEY == _STANDALONE_SESSION_STATE_KEY + + +@pytest.mark.parametrize("location", ["agent", "bundle", "client", "client-tuple", "forwarding-wrapper"]) +def test_request_state_protected_keys_include_configured_standalone_fides_keys(location: str): + """Configured FIDES state keys stay server-owned wherever their middleware is visible before the run.""" + from types import SimpleNamespace + + from agent_framework import FunctionMiddleware, MiddlewareBundle + from agent_framework.security import LabelTrackingFunctionMiddleware, PolicyEnforcementFunctionMiddleware + + from agent_framework_ag_ui._agent_run import _FIDES_SESSION_STATE_KEY, _request_state_protected_keys + + class ForwardingMiddleware(FunctionMiddleware): + def __init__(self, inner: Any) -> None: + self._inner = inner + + async def process(self, context: Any, call_next: Any) -> None: + await self._inner.process(context, call_next) + + def __getattr__(self, name: str) -> Any: + return getattr(self._inner, name) + + middleware = [ + LabelTrackingFunctionMiddleware(session_state_key="label_state"), + PolicyEnforcementFunctionMiddleware(session_state_key="policy_state"), + ] + stub = StubAgent() + if location == "agent": + setattr(stub, "middleware", middleware) + elif location == "bundle": + setattr(stub, "middleware", [MiddlewareBundle(middleware)]) + elif location == "client": + stub.client = SimpleNamespace(function_invocation_configuration=None, function_middleware=middleware) + elif location == "client-tuple": + stub.client = SimpleNamespace(function_invocation_configuration=None, function_middleware=tuple(middleware)) + else: + setattr(stub, "middleware", [ForwardingMiddleware(item) for item in middleware]) + + assert {_FIDES_SESSION_STATE_KEY, "label_state", "policy_state"} <= _request_state_protected_keys(stub) + + +def test_request_state_protected_keys_reserve_default_standalone_fides_key_without_discoverable_middleware(): + """The default FIDES key stays server-owned for agents that expose no middleware or hide it behind a wrapper.""" + from agent_framework import FunctionMiddleware + from agent_framework.security import LabelTrackingFunctionMiddleware + + from agent_framework_ag_ui._agent_run import _FIDES_SESSION_STATE_KEY, _request_state_protected_keys + + class OpaqueMiddleware(FunctionMiddleware): + def __init__(self, inner: Any) -> None: + self._inner = inner + + async def process(self, context: Any, call_next: Any) -> None: + await self._inner.process(context, call_next) + + wrapped = StubAgent() + setattr(wrapped, "middleware", [OpaqueMiddleware(LabelTrackingFunctionMiddleware())]) + + for agent in (StubAgent(), wrapped): + assert _FIDES_SESSION_STATE_KEY in _request_state_protected_keys(agent) + + +def test_standalone_fides_state_is_not_a_provider_service_session_key(): + """FIDES state is protected from request state but must keep persisting in private continuation. + + Reserving it like a provider-owned key would also drop it from stateless Session Continuation State, silently + discarding the server's own context label. + """ + from agent_framework import AgentSession + from agent_framework.security import LabelTrackingFunctionMiddleware + + from agent_framework_ag_ui._agent_run import ( + _FIDES_SESSION_STATE_KEY, + _provider_service_session_state_keys, + _serialize_session_continuation_state, + ) + + stub = StubAgent() + setattr(stub, "middleware", [LabelTrackingFunctionMiddleware(session_state_key="custom_state")]) + expected = {_FIDES_SESSION_STATE_KEY: {"context_label": "default"}, "custom_state": {"context_label": "custom"}} + session = AgentSession() + session.state.update(expected) + + assert not set(expected) & _provider_service_session_state_keys(stub) + assert ( + _serialize_session_continuation_state( + session, + stub, + shared_state_keys=set(), + include_service_session_id=False, + ) + == expected + ) + + async def test_request_state_cannot_assign_service_session_id(): """Chat history held by the provider is addressed by ``service_session_id``, never by client state. @@ -3801,3 +3993,75 @@ def capture(*args: Any, **kwargs: Any) -> Any: ] assert observed == [None], f"client state selected a conversation (use_service_session={use_service_session})" + + +def test_emit_text_keeps_repeated_annotated_single_chunk_delta() -> None: + """A genuine repeated token with NEW annotations is kept (#9336 review round). + + An equal delta after one chunk is only a replay when its annotations re-send the + recorded ones. A second identical token carrying a fresh citation streams normally. + """ + flow = FlowState() + first = _emit_text( + Content.from_text("ha", annotations=[Annotation(type="citation", url="https://example.com/a")]), flow + ) + second = _emit_text( + Content.from_text("ha", annotations=[Annotation(type="citation", url="https://example.com/b")]), flow + ) + + assert flow.accumulated_text == "haha" + text_events = [event for event in [*first, *second] if isinstance(event, TextMessageContentEvent)] + assert [event.delta for event in text_events] == ["ha", "ha"] + citation_events = [event for event in [*first, *second] if isinstance(event, CustomEvent)] + assert len(citation_events) == 2 + + +def test_emit_text_suppresses_cumulative_annotated_replay_after_one_chunk() -> None: + """A one-chunk cumulative duplicate keeps its text and emits only the new citation. + + Suppression of an equal duplicate needs more than one prior chunk; with one chunk + the policy matches the unannotated path and the text streams as a genuine delta. + """ + flow = FlowState() + first_citation = Annotation(type="citation", url="https://example.com/first") + _emit_text(Content.from_text("Answer", annotations=[first_citation]), flow) + + replay = _emit_text( + Content.from_text( + "Answer", + annotations=[ + first_citation, + Annotation(type="citation", url="https://example.com/second"), + ], + ), + flow, + ) + + assert flow.accumulated_text == "AnswerAnswer" + text_events = [event for event in replay if isinstance(event, TextMessageContentEvent)] + assert [event.delta for event in text_events] == ["Answer"] + citation_events = [event for event in replay if isinstance(event, CustomEvent)] + assert len(citation_events) == 1 + assert [a["url"] for a in citation_events[0].value["annotations"]] == [ + "https://example.com/first", + "https://example.com/second", + ] + + # A later multi-chunk message still suppresses full-text replays. + multi_flow = FlowState() + _emit_text(Content.from_text("Pre "), multi_flow) + _emit_text(Content.from_text("fix"), multi_flow) + replay_events = _emit_text(Content.from_text("Pre fix"), multi_flow) + assert replay_events == [] + assert multi_flow.accumulated_text == "Pre fix" + + # The exact case from the review: two genuine identical annotated tokens. + same_flow = FlowState() + same = Annotation(type="citation", url="https://example.com/same") + _emit_text(Content.from_text("ha", annotations=[same]), same_flow) + repeat = _emit_text(Content.from_text("ha", annotations=[same]), same_flow) + assert same_flow.accumulated_text == "haha" + text_events = [event for event in repeat if isinstance(event, TextMessageContentEvent)] + assert [event.delta for event in text_events] == ["ha"] + repeat_citations = [event for event in repeat if isinstance(event, CustomEvent)] + assert [event.value["annotations"] for event in repeat_citations] == [[same]] diff --git a/python/packages/ag-ui/tests/ag_ui/test_run_common.py b/python/packages/ag-ui/tests/ag_ui/test_run_common.py index 7eb1234d4cc..b58cccd2843 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_run_common.py +++ b/python/packages/ag-ui/tests/ag_ui/test_run_common.py @@ -620,7 +620,7 @@ def test_mcp_host_payload_has_live_snapshot_and_approval_parity(self): approval_event = _make_approval_tool_result_events([content])[0] approval_snapshot = _resolved_tool_result_snapshot_messages( [Message(role="tool", contents=[content], message_id="approval-result")] - )["mcp-1"] + )[("mcp-1", 1)][0] assert isinstance(approval_event.content, str) assert json.loads(approval_event.content) == host_payload assert approval_snapshot["content"] == "Summary" @@ -647,8 +647,8 @@ def test_empty_mcp_model_projection_remains_empty_across_live_snapshot_and_appro snapshot = _build_messages_snapshot(flow, []).messages[-1].model_dump(by_alias=True, exclude_none=True) approval_event = _make_approval_tool_result_events([content])[0] approval_snapshot = _resolved_tool_result_snapshot_messages([Message(role="tool", contents=[content])])[ - "mcp-empty" - ] + ("mcp-empty", 1) + ][0] assert getattr(result_event, _AGUI_TOOL_RESULT_MODEL_CONTENT_KEY) == [] assert flow.tool_results[-1]["content"] == "" @@ -684,8 +684,8 @@ def test_explicit_display_payload_wins_over_mcp_host_projection(self): ) approval_event = _make_approval_tool_result_events([content])[0] approval_snapshot = _resolved_tool_result_snapshot_messages([Message(role="tool", contents=[content])])[ - "mcp-display" - ] + ("mcp-display", 1) + ][0] assert json.loads(result_event.content) == display_payload # type: ignore[attr-defined] # ty: ignore[unresolved-attribute] assert flow.tool_results[-1]["content"] == "Summary" diff --git a/python/packages/ag-ui/tests/ag_ui/test_workflow_agent.py b/python/packages/ag-ui/tests/ag_ui/test_workflow_agent.py index 8d352ddfc3b..86f45d87046 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_workflow_agent.py +++ b/python/packages/ag-ui/tests/ag_ui/test_workflow_agent.py @@ -25,6 +25,8 @@ from agent_framework_ag_ui import AgentFrameworkWorkflow from agent_framework_ag_ui._message_adapters import snapshot_messages_for_wire +from agent_framework_ag_ui._snapshots import _SNAPSHOT_SCOPE_INPUT_KEY +from agent_framework_ag_ui._workflow import _CHECKPOINT_REQUEST_OWNER_KEY class _HitlMessageRequestExecutor(Executor): @@ -62,6 +64,41 @@ def _interrupts_from_finished(event: Any) -> list[dict[str, Any]]: return cast(list[dict[str, Any]], interrupts) +class _ChoiceRecorder(Executor): + """Pauses on a stable request id and records every response it dispatches.""" + + def __init__(self, handled: list[str]) -> None: + super().__init__(id="choice_recorder") + self._handled = handled + + @handler + async def start(self, message: Any, ctx: WorkflowContext[Any, str]) -> None: + del message + await ctx.request_info({"message": "Choose an option"}, dict, request_id="choice") + + @response_handler + async def handle_choice( + self, original_request: dict[str, Any], response: dict[str, Any], ctx: WorkflowContext[Any, str] + ) -> None: + del original_request + self._handled.append(response["selection"]) + await ctx.yield_output(f"Chose {response['selection']}") + + +def _choice_resume(thread_id: str | None = None) -> dict[str, Any]: + payload: dict[str, Any] = { + "messages": [], + "resume": {"interrupts": [{"id": "choice", "value": {"selection": "a"}}]}, + } + if thread_id is not None: + payload["thread_id"] = thread_id + return payload + + +def _reported_thread_ids(events: list[Any]) -> list[str]: + return [event.thread_id for event in events if event.type == "RUN_STARTED"] + + async def test_workflow_wrapper_rejects_workflow_and_factory_at_once() -> None: """Workflow wrapper should reject ambiguous workflow source configuration.""" @@ -142,6 +179,205 @@ def workflow_factory(thread_id: str) -> Workflow: assert factory_calls["thread-a"] == 2 +async def test_workflow_wrapper_omitted_thread_id_binds_live_interrupt_to_reported_id() -> None: + """A generated thread id is reported consistently and is the only id that continues the interrupt.""" + handled: list[str] = [] + agent = AgentFrameworkWorkflow(workflow=WorkflowBuilder(start_executor=_ChoiceRecorder(handled)).build()) + + first_events = await _run(agent, {"messages": [{"role": "user", "content": "start"}]}) + first_finished = [event for event in first_events if event.type == "RUN_FINISHED"] + assert _interrupts_from_finished(first_finished[0])[0]["id"] == "choice" + reported = {event.thread_id for event in first_events if event.type in {"RUN_STARTED", "RUN_FINISHED"}} + assert len(reported) == 1 + thread_id = reported.pop() + + for rejected in (_choice_resume(), _choice_resume("other-thread")): + events = await _run(agent, rejected) + assert [event.code for event in events if event.type == "RUN_ERROR"] == ["WORKFLOW_RESUME_NOT_FOUND"] + assert handled == [] + + resumed = await _run(agent, _choice_resume(thread_id)) + assert "RUN_ERROR" not in [event.type for event in resumed] + assert _reported_thread_ids(resumed) == [thread_id] + assert handled == ["a"] + + +async def test_workflow_wrapper_factory_receives_reported_thread_id_when_omitted() -> None: + """Echoing the reported thread id reuses the factory instance that holds the pending interrupt.""" + handled: list[str] = [] + factory_thread_ids: list[str] = [] + + def workflow_factory(thread_id: str) -> Workflow: + factory_thread_ids.append(thread_id) + return WorkflowBuilder(start_executor=_ChoiceRecorder(handled)).build() + + agent = AgentFrameworkWorkflow(workflow_factory=workflow_factory) + + first_events = await _run(agent, {"messages": [{"role": "user", "content": "start"}]}) + reported = _reported_thread_ids(first_events) + assert len(reported) == 1 + assert factory_thread_ids == reported + + resumed = await _run(agent, _choice_resume(reported[0])) + assert "RUN_ERROR" not in [event.type for event in resumed] + assert handled == ["a"] + assert factory_thread_ids == reported + + await _run(agent, {"messages": [{"role": "user", "content": "start again"}]}) + assert len(factory_thread_ids) == 2 + assert factory_thread_ids[1] != reported[0] + + +async def test_workflow_wrapper_treats_empty_thread_ids_as_omitted() -> None: + """Empty snake_case and camelCase thread ids resolve to one generated id like an omitted id.""" + handled: list[str] = [] + agent = AgentFrameworkWorkflow(workflow=WorkflowBuilder(start_executor=_ChoiceRecorder(handled)).build()) + + first_events = await _run( + agent, {"thread_id": "", "threadId": "", "messages": [{"role": "user", "content": "start"}]} + ) + reported = _reported_thread_ids(first_events) + assert len(reported) == 1 + assert reported[0] + + resumed = await _run(agent, _choice_resume(reported[0])) + assert "RUN_ERROR" not in [event.type for event in resumed] + assert handled == ["a"] + + +async def _newest_pending_checkpoint(storage: InMemoryCheckpointStorage, workflow: Workflow) -> Any: + checkpoints = await storage.list_checkpoints(workflow_name=workflow.name) + return max((item for item in checkpoints if item.pending_request_info_events), key=lambda item: item.timestamp) + + +@pytest.mark.parametrize( + "empty_ids", + [{"thread_id": ""}, {"threadId": ""}, {"thread_id": "", "threadId": ""}], + ids=["snake-case", "camel-case", "both"], +) +async def test_workflow_wrapper_empty_thread_ids_own_checkpoints_like_omitted(empty_ids: dict[str, str]) -> None: + """An empty thread id is not stamped as checkpoint owner, so id-less restores keep working.""" + storage = InMemoryCheckpointStorage() + handled: list[str] = [] + first_workflow = WorkflowBuilder(start_executor=_ChoiceRecorder(handled)).build() + first = AgentFrameworkWorkflow(workflow=first_workflow, checkpoint_storage=storage) + await _run(first, {"messages": [{"role": "user", "content": "start"}], **empty_ids}) + + checkpoint = await _newest_pending_checkpoint(storage, first_workflow) + assert checkpoint.metadata[_CHECKPOINT_REQUEST_OWNER_KEY]["thread_id"] is None + + restarted = AgentFrameworkWorkflow( + workflow=WorkflowBuilder(start_executor=_ChoiceRecorder(handled)).build(), checkpoint_storage=storage + ) + resumed = await _run( + restarted, {**_choice_resume(), "forwarded_props": {"checkpoint_id": checkpoint.checkpoint_id}} + ) + assert "RUN_ERROR" not in [event.type for event in resumed] + assert handled == ["a"] + + +_FACTORY_CONTINUATIONS: dict[str, dict[str, Any]] = { + "resume-entry": _choice_resume(), + "tool-message": {"messages": [{"role": "tool", "toolCallId": "choice", "content": '{"selection": "a"}'}]}, + "approval-message": { + "messages": [ + { + "role": "assistant", + "content": "", + "toolCalls": [{"id": "choice", "type": "function", "function": {"name": "choose", "arguments": "{}"}}], + }, + {"role": "tool", "toolCallId": "choice", "content": '{"accepted": true}'}, + ] + }, +} + + +@pytest.mark.parametrize("continuation", list(_FACTORY_CONTINUATIONS.values()), ids=list(_FACTORY_CONTINUATIONS)) +async def test_workflow_wrapper_factory_rejects_continuations_without_thread_id( + continuation: dict[str, Any], +) -> None: + """A resume entry, tool result, or approval response cannot continue a factory run without a thread id.""" + handled: list[str] = [] + factory_thread_ids: list[str] = [] + + def workflow_factory(thread_id: str) -> Workflow: + factory_thread_ids.append(thread_id) + return WorkflowBuilder(start_executor=_ChoiceRecorder(handled)).build() + + agent = AgentFrameworkWorkflow(workflow_factory=workflow_factory) + + first_events = await _run(agent, {"messages": [{"role": "user", "content": "start"}]}) + reported = _reported_thread_ids(first_events) + assert factory_thread_ids == reported + + rejected = await _run(agent, deepcopy(continuation)) + assert [event.code for event in rejected if event.type == "RUN_ERROR"] == ["WORKFLOW_RESUME_NOT_FOUND"] + assert factory_thread_ids == reported + assert handled == [] + + resumed = await _run(agent, _choice_resume(reported[0])) + assert "RUN_ERROR" not in [event.type for event in resumed] + assert handled == ["a"] + + +async def test_workflow_wrapper_factory_runs_requests_without_responses_when_thread_id_is_omitted() -> None: + """Only continuations are rejected without a thread id; a new request still starts a run under a new id.""" + handled: list[str] = [] + factory_thread_ids: list[str] = [] + + def workflow_factory(thread_id: str) -> Workflow: + factory_thread_ids.append(thread_id) + return WorkflowBuilder(start_executor=_ChoiceRecorder(handled)).build() + + agent = AgentFrameworkWorkflow(workflow_factory=workflow_factory) + + first = _reported_thread_ids(await _run(agent, {"messages": [{"role": "user", "content": "start"}]})) + second = _reported_thread_ids(await _run(agent, {"messages": [{"role": "user", "content": "start again"}]})) + + assert factory_thread_ids == first + second + assert first != second + assert handled == [] + + +async def test_workflow_wrapper_checkpoint_resumes_with_reported_or_omitted_thread_id() -> None: + """A checkpoint of a run without threadId resumes with the reported id or, as before, with no id.""" + storage = InMemoryCheckpointStorage() + handled: list[str] = [] + + def restart() -> AgentFrameworkWorkflow: + workflow = WorkflowBuilder(start_executor=_ChoiceRecorder(handled)).build() + return AgentFrameworkWorkflow(workflow=workflow, checkpoint_storage=storage) + + first = restart() + first_events = await _run( + first, {"messages": [{"role": "user", "content": "start"}], _SNAPSHOT_SCOPE_INPUT_KEY: "tenant-a"} + ) + reported = _reported_thread_ids(first_events)[0] + assert first.workflow is not None + checkpoint = await _newest_pending_checkpoint(storage, first.workflow) + assert checkpoint.metadata[_CHECKPOINT_REQUEST_OWNER_KEY] == { + "snapshot_scope": "tenant-a", + "thread_id": None, + "generated_thread_id": reported, + } + forwarded = {"forwarded_props": {"checkpoint_id": checkpoint.checkpoint_id}} + + for wrong_thread_id, wrong_scope in (("other-thread", "tenant-a"), (reported, "tenant-b")): + rejected = await _run( + restart(), {**_choice_resume(wrong_thread_id), **forwarded, _SNAPSHOT_SCOPE_INPUT_KEY: wrong_scope} + ) + assert [event.code for event in rejected if event.type == "RUN_ERROR"] == ["WORKFLOW_RESUME_NOT_FOUND"] + assert handled == [] + + echoed = await _run(restart(), {**_choice_resume(reported), **forwarded, _SNAPSHOT_SCOPE_INPUT_KEY: "tenant-a"}) + assert "RUN_ERROR" not in [event.type for event in echoed] + assert handled == ["a"] + + legacy = await _run(restart(), {**_choice_resume(), **forwarded, _SNAPSHOT_SCOPE_INPUT_KEY: "tenant-a"}) + assert "RUN_ERROR" not in [event.type for event in legacy] + assert handled == ["a", "a"] + + async def test_workflow_wrapper_without_workflow_raises_not_implemented() -> None: """Without workflow/workflow_factory, run should raise NotImplementedError.""" agent = AgentFrameworkWorkflow() diff --git a/python/packages/anthropic/agent_framework_anthropic/_chat_client.py b/python/packages/anthropic/agent_framework_anthropic/_chat_client.py index b26e6d60757..accc9aa0098 100644 --- a/python/packages/anthropic/agent_framework_anthropic/_chat_client.py +++ b/python/packages/anthropic/agent_framework_anthropic/_chat_client.py @@ -1563,7 +1563,7 @@ def _parse_contents_from_anthropic( ) ) for bash_file_content in content_block.content.content: - contents.append( + shell_outputs.append( Content.from_hosted_file( file_id=bash_file_content.file_id, raw_representation=bash_file_content, diff --git a/python/packages/anthropic/pyproject.toml b/python/packages/anthropic/pyproject.toml index 5337f2fa8cf..e3a5c0445d8 100644 --- a/python/packages/anthropic/pyproject.toml +++ b/python/packages/anthropic/pyproject.toml @@ -4,7 +4,7 @@ description = "Anthropic integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,7 +24,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.19.0,<2", + "agent-framework-core>=1.22.0,<2", "anthropic>=1.11.0,<2", ] diff --git a/python/packages/anthropic/tests/test_anthropic_client.py b/python/packages/anthropic/tests/test_anthropic_client.py index 3afb66eb5fb..e0bf7aed4ac 100644 --- a/python/packages/anthropic/tests/test_anthropic_client.py +++ b/python/packages/anthropic/tests/test_anthropic_client.py @@ -4269,3 +4269,33 @@ def test_option_translations_single_stop_string_becomes_list() -> None: options = {"stop": ["END", "STOP"]} _apply_option_translations(options) assert options == {"stop_sequences": ["END", "STOP"]} + + +def test_parse_bash_execution_result_with_files( + mock_anthropic_client: MagicMock, +) -> None: + """Bash result files stay nested in the shell tool result outputs (#9342).""" + client = create_test_anthropic_client(mock_anthropic_client) + + mock_file = MagicMock() + mock_file.file_id = "file_456" + + mock_content = MagicMock() + mock_content.stdout = "Output text" + mock_content.stderr = None + mock_content.return_code = 0 + mock_content.content = [mock_file] + + mock_block = MagicMock() + mock_block.type = "bash_code_execution_tool_result" + mock_block.tool_use_id = "call_bash4" + mock_block.content = mock_content + + result = client._parse_contents_from_anthropic([mock_block]) + + assert len(result) == 1 + assert result[0].type == "shell_tool_result" + assert result[0].outputs is not None + hosted_files = [output for output in result[0].outputs if output.type == "hosted_file"] + assert len(hosted_files) == 1 + assert hosted_files[0].file_id == "file_456" diff --git a/python/packages/azure-ai-search/pyproject.toml b/python/packages/azure-ai-search/pyproject.toml index 596dae69183..f051c76faca 100644 --- a/python/packages/azure-ai-search/pyproject.toml +++ b/python/packages/azure-ai-search/pyproject.toml @@ -4,7 +4,7 @@ description = "Azure AI Search integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261002" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/azure-contentunderstanding/pyproject.toml b/python/packages/azure-contentunderstanding/pyproject.toml index 8d612ecbd43..181792f7ee2 100644 --- a/python/packages/azure-contentunderstanding/pyproject.toml +++ b/python/packages/azure-contentunderstanding/pyproject.toml @@ -4,7 +4,7 @@ description = "Azure Content Understanding integration for Microsoft Agent Frame authors = [{ name = "Microsoft", email = "af-support@microsoft.com" }] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/azure-cosmos-memory/AGENTS.md b/python/packages/azure-cosmos-memory/AGENTS.md index dcaf780afc4..21914fc4e2b 100644 --- a/python/packages/azure-cosmos-memory/AGENTS.md +++ b/python/packages/azure-cosmos-memory/AGENTS.md @@ -35,9 +35,9 @@ from agent_framework_azure_cosmos_memory import CosmosMemoryContextProvider - Documentation and examples that show a literal Foundry project endpoint must use the full project-scoped form `https://your-account.services.ai.azure.com/api/projects/your-project`, including the `/api/projects/your-project` path. -- Set a stable `user_id` in `state["user_id"]` or `session.state["user_id"]` for long-term, - cross-session memory. Without it, memory scopes to the ephemeral session id and the provider - logs a one-time warning. +- Set a stable `user_id` in the provider-scoped state for long-term, cross-session memory: + `session.state.setdefault(provider.source_id, {})["user_id"] = "user-123"`. + Without it, memory scopes to the ephemeral session id. - Background fact extraction runs out-of-band after each turn. Call `provider.flush()` before shutdown so in-flight extraction completes before the client closes. - See `README.md` for full configuration, authentication, and processor-tuning options. diff --git a/python/packages/azure-cosmos-memory/agent_framework_azure_cosmos_memory/_context_provider.py b/python/packages/azure-cosmos-memory/agent_framework_azure_cosmos_memory/_context_provider.py index b8452fd4e39..613bb2f1e14 100644 --- a/python/packages/azure-cosmos-memory/agent_framework_azure_cosmos_memory/_context_provider.py +++ b/python/packages/azure-cosmos-memory/agent_framework_azure_cosmos_memory/_context_provider.py @@ -150,12 +150,20 @@ def __init__( SettingNotFoundError: If ``cosmos_endpoint``, ``foundry_endpoint``, ``embedding_model``, or ``chat_model`` cannot be resolved from arguments or the environment (only when ``memory_client`` is not supplied). + ValueError: If ``top_k`` is not positive, or ``min_confidence`` is outside 0.0-1.0. """ super().__init__(source_id) # Track whether we created the client (and thus should close it in __aexit__) # vs. received a pre-created client (which the caller owns and should close) self._should_close_client = False + # Both values reach the toolkit on every retrieval, where bad ones fail silently: a + # non-positive top_k makes the toolkit raise (logged per turn, no memories), and a + # min_confidence outside 0.0-1.0 either matches nothing or drops the filter entirely. + if top_k <= 0: + raise ValueError("top_k must be greater than 0") + if not 0.0 <= min_confidence <= 1.0: + raise ValueError("min_confidence must be between 0.0 and 1.0") self.top_k = top_k self.min_confidence = min_confidence self.memory_types: list[MemoryType] = list(memory_types) if memory_types else ["fact", "procedural"] diff --git a/python/packages/azure-cosmos-memory/pyproject.toml b/python/packages/azure-cosmos-memory/pyproject.toml index 7d71e2d0447..bc4f87347ea 100644 --- a/python/packages/azure-cosmos-memory/pyproject.toml +++ b/python/packages/azure-cosmos-memory/pyproject.toml @@ -4,7 +4,7 @@ description = "Azure Cosmos DB Agent Memory Toolkit integration for Microsoft Ag authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.11" -version = "1.0.0a261008" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/azure-cosmos-memory/tests/test_context_provider.py b/python/packages/azure-cosmos-memory/tests/test_context_provider.py index b12296c3331..5c601cd1b5c 100644 --- a/python/packages/azure-cosmos-memory/tests/test_context_provider.py +++ b/python/packages/azure-cosmos-memory/tests/test_context_provider.py @@ -132,6 +132,25 @@ def test_init_default_values(self, mock_memory_client: AsyncMock) -> None: assert provider.context_prompt == DEFAULT_CONTEXT_PROMPT assert provider.auto_extract is True + def test_init_rejects_non_positive_top_k(self, mock_memory_client: AsyncMock) -> None: + """The toolkit rejects a non-positive top_k on every search, so fail at construction.""" + for top_k in (0, -1): + with pytest.raises(ValueError, match="top_k must be greater than 0"): + CosmosMemoryContextProvider(memory_client=mock_memory_client, top_k=top_k) + + def test_init_rejects_min_confidence_outside_documented_range(self, mock_memory_client: AsyncMock) -> None: + """Scores above 1.0 match no memory and negative scores drop the filter; both are silent.""" + for min_confidence in (-0.1, 1.01, float("nan"), float("inf")): + with pytest.raises(ValueError, match="min_confidence must be between 0.0 and 1.0"): + CosmosMemoryContextProvider(memory_client=mock_memory_client, min_confidence=min_confidence) + + def test_init_accepts_boundary_search_params(self, mock_memory_client: AsyncMock) -> None: + """The documented bounds are inclusive.""" + provider = CosmosMemoryContextProvider(memory_client=mock_memory_client, top_k=1, min_confidence=1.0) + + assert provider.top_k == 1 + assert provider.min_confidence == 1.0 + def test_init_creates_client_when_none(self) -> None: """When no client provided, creates AsyncCosmosMemoryClient with default credential.""" with ( diff --git a/python/packages/azure-cosmos/pyproject.toml b/python/packages/azure-cosmos/pyproject.toml index b97073f34a7..a8b69d7e46b 100644 --- a/python/packages/azure-cosmos/pyproject.toml +++ b/python/packages/azure-cosmos/pyproject.toml @@ -4,7 +4,7 @@ description = "Azure Cosmos DB for NoSQL integrations for Microsoft Agent Framew authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261002" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/azure-documentdb/pyproject.toml b/python/packages/azure-documentdb/pyproject.toml index e474de7cf92..9083b70b778 100644 --- a/python/packages/azure-documentdb/pyproject.toml +++ b/python/packages/azure-documentdb/pyproject.toml @@ -4,7 +4,7 @@ description = "Azure DocumentDB vector stores for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com" }] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261002" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/bedrock/agent_framework_bedrock/_chat_client.py b/python/packages/bedrock/agent_framework_bedrock/_chat_client.py index 8e739418921..7b908039028 100644 --- a/python/packages/bedrock/agent_framework_bedrock/_chat_client.py +++ b/python/packages/bedrock/agent_framework_bedrock/_chat_client.py @@ -498,7 +498,11 @@ def _prepare_options( ): if (value := options.get(key)) is not None: run_options[key] = value - if ":prompt/" in model: + # Per-call client kwargs (for example Bedrock-native fields passed through + # client_kwargs) join the request before the prompt-ARN cleanup so that + # branch still strips fields Converse rejects, mirroring the other clients. + run_options.update(kwargs) + if ":prompt/" in run_options["modelId"]: # A Prompt Management ARN takes these fields from the prompt, and Converse rejects requests that set them. if run_options["inferenceConfig"] == {"maxTokens": DEFAULT_MAX_TOKENS}: del run_options["inferenceConfig"] # only the client default, nothing the caller asked for diff --git a/python/packages/bedrock/agent_framework_bedrock/_embedding_client.py b/python/packages/bedrock/agent_framework_bedrock/_embedding_client.py index 9d55d4a22f8..562b4229f5a 100644 --- a/python/packages/bedrock/agent_framework_bedrock/_embedding_client.py +++ b/python/packages/bedrock/agent_framework_bedrock/_embedding_client.py @@ -85,8 +85,9 @@ class RawBedrockEmbeddingClient( model: The Bedrock embedding model ID (e.g. "amazon.titan-embed-text-v2:0"). Can also be set via environment variable BEDROCK_EMBEDDING_MODEL. region: AWS region. Will try to load from BEDROCK_REGION env var, - if not set, the regular Boto3 configuration/loading applies - (which may include other env vars, config files, or instance metadata). + if not set, the region of ``boto3_session`` is used, or without a session + the regular Boto3 configuration/loading applies (which may include other + env vars, config files, or instance metadata). Falls back to us-east-1. access_key: AWS access key for manual credential injection. secret_key: AWS secret key paired with access_key. session_token: AWS session token for temporary credentials. @@ -138,10 +139,10 @@ def __init__( if session_token := settings.get("session_token"): session_kwargs["aws_session_token"] = session_token.get_secret_value() boto3_session = Boto3Session(**session_kwargs) - region_name = boto3_session.region_name + resolved_region = settings.get("region") or boto3_session.region_name or DEFAULT_REGION self._bedrock_client = boto3_session.client( "bedrock-runtime", - region_name=region_name or resolved_region, + region_name=resolved_region, config=BotoConfig(user_agent_extra=get_user_agent()), ) @@ -239,8 +240,9 @@ class BedrockEmbeddingClient( Keyword Args: model: The Bedrock embedding model ID (e.g. "amazon.titan-embed-text-v2:0"). Can also be set via environment variable BEDROCK_EMBEDDING_MODEL. - region: AWS region. Defaults to "us-east-1". - Can also be set via environment variable BEDROCK_REGION. + region: AWS region. Can also be set via environment variable BEDROCK_REGION. + If not set, the region of ``boto3_session`` is used, or without a session + the regular Boto3 configuration. Defaults to "us-east-1". access_key: AWS access key for manual credential injection. secret_key: AWS secret key paired with access_key. session_token: AWS session token for temporary credentials. diff --git a/python/packages/bedrock/pyproject.toml b/python/packages/bedrock/pyproject.toml index 2cd3778607f..59d359be5f4 100644 --- a/python/packages/bedrock/pyproject.toml +++ b/python/packages/bedrock/pyproject.toml @@ -4,7 +4,7 @@ description = "Amazon Bedrock integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,7 +24,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.19.0,<2", + "agent-framework-core>=1.22.0,<2", "boto3>=1.35.0,<2.0.0", "botocore>=1.35.0,<2.0.0", ] diff --git a/python/packages/bedrock/tests/bedrock/test_bedrock_embedding_client.py b/python/packages/bedrock/tests/bedrock/test_bedrock_embedding_client.py index b16ec44790a..e7ec102509a 100644 --- a/python/packages/bedrock/tests/bedrock/test_bedrock_embedding_client.py +++ b/python/packages/bedrock/tests/bedrock/test_bedrock_embedding_client.py @@ -4,11 +4,12 @@ import json import os -from typing import Any +from typing import Any, cast from unittest.mock import MagicMock import pytest from agent_framework import Embedding, GeneratedEmbeddings +from boto3.session import Session as Boto3Session from agent_framework_bedrock import BedrockEmbeddingClient, BedrockEmbeddingOptions @@ -143,6 +144,76 @@ async def test_bedrock_embedding_default_region() -> None: assert client.region == "us-east-1" +class _FakeSession: + def __init__(self, region_name: str | None = None) -> None: + self.calls: list[dict[str, Any]] = [] + self.region_name = region_name + + def client(self, service_name: str, *, region_name: str, config: Any) -> _StubBedrockEmbeddingRuntime: + self.calls.append({"service_name": service_name, "region_name": region_name}) + return _StubBedrockEmbeddingRuntime() + + +@pytest.mark.parametrize( + ("region", "env_region", "session_region", "expected_region"), + [ + (None, None, "eu-west-1", "eu-west-1"), + ("us-west-2", None, "eu-west-1", "us-west-2"), + (None, "ap-south-1", "eu-west-1", "ap-south-1"), + (None, None, None, "us-east-1"), + ], + ids=["session-region", "region-argument-wins", "env-region-wins", "default-region"], +) +async def test_bedrock_embedding_resolves_region_with_boto3_session( + monkeypatch: pytest.MonkeyPatch, + region: str | None, + env_region: str | None, + session_region: str | None, + expected_region: str, +) -> None: + """A configured region wins, then the provided session's region, then the default region.""" + if env_region: + monkeypatch.setenv("BEDROCK_REGION", env_region) + else: + monkeypatch.delenv("BEDROCK_REGION", raising=False) + session = _FakeSession(region_name=session_region) + + client = BedrockEmbeddingClient( + model="amazon.titan-embed-text-v2:0", region=region, boto3_session=cast(Boto3Session, session) + ) + + assert session.calls == [{"service_name": "bedrock-runtime", "region_name": expected_region}] + assert client.region == expected_region + + +async def test_bedrock_embedding_reports_boto3_default_region(monkeypatch: pytest.MonkeyPatch) -> None: + """Without a region or session, the region boto3 resolves is used and reported.""" + monkeypatch.delenv("BEDROCK_REGION", raising=False) + monkeypatch.setenv("AWS_DEFAULT_REGION", "eu-central-1") + + client = BedrockEmbeddingClient(model="amazon.titan-embed-text-v2:0") + + assert client.service_url() == "https://bedrock-runtime.eu-central-1.amazonaws.com" + assert client.region == "eu-central-1" + + +async def test_bedrock_embedding_ignores_boto3_session_when_runtime_client_supplied( + monkeypatch: pytest.MonkeyPatch, +) -> None: + """A preconfigured runtime client wins, so the unused session should not change the reported region.""" + monkeypatch.delenv("BEDROCK_REGION", raising=False) + session = _FakeSession(region_name="eu-west-1") + + client = BedrockEmbeddingClient( + model="amazon.titan-embed-text-v2:0", + client=_StubBedrockEmbeddingRuntime(), # pyrefly: ignore[bad-argument-type] # ty: ignore[invalid-argument-type] # pyright: ignore[reportArgumentType] + boto3_session=cast(Boto3Session, session), + ) + + assert session.calls == [] + assert client.region == "us-east-1" + + # region: Integration Tests skip_if_bedrock_embedding_integration_tests_disabled = pytest.mark.skipif( diff --git a/python/packages/bedrock/tests/test_bedrock_client.py b/python/packages/bedrock/tests/test_bedrock_client.py index 80abecb56a6..bd698efac7a 100644 --- a/python/packages/bedrock/tests/test_bedrock_client.py +++ b/python/packages/bedrock/tests/test_bedrock_client.py @@ -1044,3 +1044,36 @@ def test_parse_message_contents_requires_tool_use_name() -> None: with pytest.raises(ChatClientInvalidResponseException, match="missing required tool name"): client._parse_message_contents([{"toolUse": {"toolUseId": "call-1"}}]) + + +def test_prepare_options_keeps_per_call_client_kwargs() -> None: + """Per-call client kwargs must land in the Converse request, not vanish (#9344).""" + client = _make_client() + messages = [Message(role="user", contents=[Content.from_text(text="hello")])] + + request = client._prepare_options( + messages, + {}, + guardrailConfig={"guardrailIdentifier": "gr-1", "guardrailVersion": "DRAFT"}, + requestMetadata={"channel": "test"}, + ) + + assert request["guardrailConfig"] == {"guardrailIdentifier": "gr-1", "guardrailVersion": "DRAFT"} + assert request["requestMetadata"] == {"channel": "test"} + + +def test_prepare_options_prompt_cleanup_uses_overridden_model_id() -> None: + """A prompt ARN arriving through client kwargs must trigger the ARN cleanup (#9344).""" + client = _make_client() + messages = [Message(role="user", contents=[Content.from_text(text="hello")])] + + request = client._prepare_options( + messages, + {}, + modelId="arn:aws:bedrock:us-east-1:123456789012:prompt/PROMPT123", + ) + + assert ":prompt/" in request["modelId"] + assert "inferenceConfig" not in request, "prompt ARN requests must not carry inferenceConfig" + assert "system" not in request + assert "toolConfig" not in request diff --git a/python/packages/chatkit/pyproject.toml b/python/packages/chatkit/pyproject.toml index c6c44de32b6..98556d13974 100644 --- a/python/packages/chatkit/pyproject.toml +++ b/python/packages/chatkit/pyproject.toml @@ -4,7 +4,7 @@ description = "OpenAI ChatKit integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261002" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/claude/pyproject.toml b/python/packages/claude/pyproject.toml index 30af2ca7511..43ff62900e2 100644 --- a/python/packages/claude/pyproject.toml +++ b/python/packages/claude/pyproject.toml @@ -4,7 +4,7 @@ description = "Claude Agent SDK integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261002" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,7 +24,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.13.0,<2", + "agent-framework-core>=1.22.0,<2", "claude-agent-sdk>=0.1.46,<0.3", ] diff --git a/python/packages/copilotstudio/pyproject.toml b/python/packages/copilotstudio/pyproject.toml index cf3d1e47c56..ea58c7fabd9 100644 --- a/python/packages/copilotstudio/pyproject.toml +++ b/python/packages/copilotstudio/pyproject.toml @@ -4,7 +4,7 @@ description = "Copilot Studio integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261002" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,7 +24,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.13.0,<2", + "agent-framework-core>=1.22.0,<2", "aiohttp>=3.9,<4", "msal>=1.31,<2", "microsoft-agents-copilotstudio-client>=1.2.0,<2", diff --git a/python/packages/core/AGENTS.md b/python/packages/core/AGENTS.md index 0bc85e26f19..ad8a87b1080 100644 --- a/python/packages/core/AGENTS.md +++ b/python/packages/core/AGENTS.md @@ -16,7 +16,7 @@ agent_framework/ ├── _vectors.py # Vector store models, CRUD/search abstractions, and protocols ├── _middleware.py # Middleware system for request/response interception ├── _sessions.py # AgentSession and context provider abstractions -├── _filesystem.py # Private filesystem safety helpers (link detection, storage-key derivation) +├── _filesystem.py # Private filesystem safety helpers (atomic writes, link detection, storage-key derivation) ├── _skills.py # Agent Skills system (models, executors, provider) ├── _mcp.py # Model Context Protocol support ├── _telemetry.py # User-Agent identity and internal feature-usage mask @@ -203,17 +203,27 @@ The vector store API is experimental under the shared `VECTOR_STORES` feature ID - **`SkillsProvider`** - Context provider (extends `ContextProvider`) that discovers file-based skills from `SKILL.md` files and/or accepts code-defined `Skill` instances. Follows progressive disclosure: advertise → load → read resources / run scripts. By default all three tools it exposes (`load_skill`, `read_skill_resource`, `run_skill_script`) are registered with `approval_mode="always_require"`, so every skill operation needs approval. To run unattended, pass one of the static auto-approval rules to `ToolApprovalMiddleware` (via `auto_approval_rules`): `SkillsProvider.read_only_tools_auto_approval_rule` approves only the read-only tools (`load_skill`, `read_skill_resource`) while still prompting for `run_skill_script`, and `SkillsProvider.all_tools_auto_approval_rule` approves every skill tool including script execution. Both rules reject any call carrying a `server_label` so they stay scoped to this provider's local tools and never auto-approve a same-named hosted tool. Alternatively, for trusted skills, the constructor / `from_paths` kwargs `disable_load_skill_approval`, `disable_read_skill_resource_approval`, and `disable_run_skill_script_approval` (all default `False`) opt individual tools out of approval entirely by registering them with `approval_mode="never_require"` (the auto-approval rules only apply to tools that still require approval). The tool names are also exposed as class constants (`LOAD_SKILL_TOOL_NAME`, `READ_SKILL_RESOURCE_TOOL_NAME`, `RUN_SKILL_SCRIPT_TOOL_NAME`). - **`FileSkillsSource`** - `SkillsSource` that discovers file-based skills by scanning configured root paths for `SKILL.md`. The **configured root paths define the trust boundary** and are used as given (a root may itself be a symlink); everything discovered *below* a root is link-checked and fails closed. `_discover_skill_directories` rejects any entry that is a symbolic link, junction, or other reparse point (via the shared `agent_framework._filesystem.is_link_or_reparse_point` helper) before descending into it, and rejects a directory whose `SKILL.md` is itself such a link — otherwise a link planted under a root would be adopted as the skill root, and since every later guard treats the skill root as the boundary and only inspects segments below it, the link itself would never be inspected. Resource and script discovery apply the same rule per path segment via `_has_link_or_reparse_point_in_path`; source-discovered resources and scripts retain a `_SkillPathScope` pairing their configured root with their skill directory, and repeat containment, regular-file, and link checks immediately before reading or execution — scanning every segment from the configured root down to the file, so a skill directory (or any directory between it and the root) swapped for a link after discovery is rejected too. An `OSError` while inspecting an entry is treated as unsafe (skip / reject), never as "safe". - **`MCPSkillsSource`** - `SkillsSource` that discovers Agent Skills served over MCP by reading the well-known `skill://index.json` (SEP-2640). Index entries are dispatched by their `type` (case-insensitive): `skill-md` entries become one `MCPSkill` each (its `SKILL.md` body and sibling resources are fetched on demand via `resources/read`), and `archive` entries are downloaded as a single ZIP blob and unpacked **entirely in memory** (via the private `_ArchiveEntryLoader`) into a `FileSkill` whose `SKILL.md` body drives it and whose sibling files (matching the resource extensions, within the search depth) become in-memory `InlineSkillResource` resources. **Nothing is written to disk** — there are no temporary directories to create, own, or prune (this is a deliberate divergence from .NET, which extracts ZIP archives to disk; it removes the temp-dir leak and the dangerous prune-of-unowned-subdirs footgun). Entries whose type has no handler (e.g. `mcp-resource-template`) are skipped. **MCP-delivered scripts are never runnable**: the loader emits no `SkillScript`s, so a bundled script can at most surface as a readable resource (and only if it matches the resource extensions — `.py` is not a default resource extension). The archive `SKILL.md` frontmatter `name` must match the advertised index-entry `name` or the skill is skipped. ZIP extraction is hardened: a `..` path-traversal ("zip-slip") member name raises via `_normalize_archive_member_name` and aborts the whole skill (like the file-count/size limits), and file-count / uncompressed-size (`_read_member_with_limit`) / download-size limits are enforced. Archive behavior is configured with `archive_*` constructor kwargs (`archive_resource_extensions`, `archive_resource_search_depth`, `archive_max_file_count`, `archive_max_size_bytes`, `archive_max_uncompressed_size_bytes`) — Python uses plain kwargs, not a `*Options` object as in .NET. A non-"resource not found" error while downloading an archive propagates (so a failed `CachingSkillsSource` refresh does not overwrite a cached list with a partial result). Unlike .NET's `AgentMcpSkillsSourceOptions.RefreshInterval`, this source has no built-in refresh interval; wrap it in `CachingSkillsSource(..., refresh_interval=...)` for caching/refresh. This is a port of .NET PR #6631; the `FileSkillsSource` `script_extensions`/`resource_extensions` kwargs default to the built-in tuples and treat `None` as "use defaults" and an empty tuple as "discover none" (an empty tuple previously fell back to defaults). `FoundryToolbox.as_skills_provider()` forwards matching `archive_*` kwargs to this source. -- **`SkillsSource` decorators** - Skill sources are composable: `SkillsSource` is the abstract base, with concrete sources (`InMemorySkillsSource`, `FileSkillsSource`, `MCPSkillsSource`) and decorators that wrap an inner source — `AggregatingSkillsSource` (concatenate several sources), `FilteringSkillsSource` (predicate filter), `DeduplicatingSkillsSource` (first-wins by name), and `CachingSkillsSource` (cache the inner source's skills list). `DelegatingSkillsSource` is the abstract base for decorators. **`get_skills` takes a `SkillsSourceContext`**: every source/decorator implements `async def get_skills(self, context: SkillsSourceContext) -> list[Skill]` and forwards `context` to inner sources. `SkillsSourceContext` (frozen) carries the invoking `agent` (`SupportsAgentRun`) and optional `session` (`AgentSession | None`); `SkillsProvider` builds it from `before_run`'s `agent`/`session` and passes it into the pipeline. `FilteringSkillsSource`'s predicate is context-aware: `Callable[[Skill, SkillsSourceContext], bool]` (port of .NET #6797). **Default caching is applied only to the built-in, context-independent leaf sources**: for the `Skill` / sequence-of-skills / `from_paths` constructors, `SkillsProvider` builds `DeduplicatingSkillsSource(CachingSkillsSource())` so expensive filesystem/network discovery runs once. A **caller-supplied `SkillsSource` is used as-is — never auto-wrapped in caching or deduplication** — because auto-caching a context-aware caller source in a single shared bucket would replay the first invocation's skills for later `SkillsSourceContext`s and leak skills across agents/tenants (matches .NET, whose custom-source constructor also adds no caching/dedup). Callers who want caching on a custom pipeline compose `CachingSkillsSource(inner, cache_isolation_key_selector=...)` themselves. `disable_caching=True` only affects the built-in leaf caching (it has no effect on a caller-supplied source, which is never cached). `CachingSkillsSource` shares a single in-flight fetch across concurrent callers (per cache key) and does not update its cache on a failed fetch, so the next call retries (an initial failure leaves the cache empty; a refresh failure keeps the previously cached list). By default all callers share one cache bucket; pass `cache_isolation_key_selector=Callable[[SkillsSourceContext], str | None]` to cache separately per key (e.g. per agent name) for context-aware inner sources — the key should be low-cardinality and stable, and returning `None` (or leaving the selector `None`) uses the shared bucket. By default a cached list never expires; pass `refresh_interval=timedelta(...)` (port of .NET `CachingAgentSkillsSourceOptions.RefreshInterval`) to treat a cached list as stale once it is older than the interval so the next call re-queries the inner source (useful when an inner source such as `MCPSkillsSource` changes over the process lifetime; a zero/negative interval makes every result immediately stale, and a failed refresh keeps the prior list and retries). Freshness is measured with a monotonic clock (`time.monotonic()`). `SkillsProvider.__init__` / `from_paths` expose a `cache_refresh_interval` kwarg that is threaded into the built-in `CachingSkillsSource` (it has no effect on a caller-supplied source or when `disable_caching=True`). **`MCPSkillsSource` and `MCPSkill` accept exactly one of `client` (a fixed `ClientSession`) or `session_provider` (`Callable[[], ClientSession]`, resolved on every fetch); providing both/neither raises `ValueError`.** Use `session_provider` when the underlying session may be swapped over time — e.g. a reconnecting `MCPTool`/`FoundryToolbox` whose `session` is replaced on reconnect — so cached `MCPSkill`s keep fetching against the live session instead of a closed one (`MCPSkillsSource` forwards its provider to every `MCPSkill` it creates). A fixed `client` is safe only when the session outlives the skills. +- **`SkillsSource` decorators** - Skill sources are composable: `SkillsSource` is the abstract base, with concrete sources (`InMemorySkillsSource`, `FileSkillsSource`, `MCPSkillsSource`) and decorators that wrap an inner source — `AggregatingSkillsSource` (concatenate several sources), `FilteringSkillsSource` (predicate filter), `DeduplicatingSkillsSource` (first-wins by name), and `CachingSkillsSource` (cache the inner source's skills list). `DelegatingSkillsSource` is the abstract base for decorators. **`get_skills` takes a `SkillsSourceContext`**: every source/decorator implements `async def get_skills(self, context: SkillsSourceContext) -> list[Skill]` and forwards `context` to inner sources. `SkillsSourceContext` (frozen) carries the invoking `agent` (`SupportsAgentRun`) and optional `session` (`AgentSession | None`); `SkillsProvider` builds it from `before_run`'s `agent`/`session` and passes it into the pipeline. `FilteringSkillsSource`'s predicate is context-aware: `Callable[[Skill, SkillsSourceContext], bool]` (port of .NET #6797). **Default caching is applied only to the built-in, context-independent leaf sources**: for the `Skill` / sequence-of-skills / `from_paths` constructors, `SkillsProvider` builds `DeduplicatingSkillsSource(CachingSkillsSource())` so expensive filesystem/network discovery runs once. A **caller-supplied `SkillsSource` is used as-is — never auto-wrapped in caching or deduplication** — because auto-caching a context-aware caller source in a single shared bucket would replay the first invocation's skills for later `SkillsSourceContext`s and leak skills across agents/tenants (matches .NET, whose custom-source constructor also adds no caching/dedup). Callers who want caching on a custom pipeline compose `CachingSkillsSource(inner, cache_isolation_key_selector=...)` themselves. `disable_caching=True` only affects the built-in leaf caching (it has no effect on a caller-supplied source, which is never cached). `CachingSkillsSource` shares a single in-flight fetch across concurrent callers (per cache key) and does not update its cache on a failed fetch, so the next call retries (an initial failure leaves the cache empty; a refresh failure keeps the previously cached list). By default all callers share one cache bucket; pass `cache_isolation_key_selector=Callable[[SkillsSourceContext], str | None]` to cache separately per key (e.g. per agent name) for context-aware inner sources — the key should be low-cardinality and stable, and returning `None` (or leaving the selector `None`) uses the shared bucket. By default a cached list never expires; pass `refresh_interval=timedelta(...)` (port of .NET `CachingAgentSkillsSourceOptions.RefreshInterval`) to treat a cached list as stale once it is older than the interval so the next call re-queries the inner source (useful when an inner source such as `MCPSkillsSource` changes over the process lifetime; a zero/negative interval makes every result immediately stale, and a failed refresh keeps the prior list and retries). Freshness is measured with a monotonic clock (`time.monotonic()`). `SkillsProvider.__init__` / `from_paths` expose a `cache_refresh_interval` kwarg that is threaded into the built-in `CachingSkillsSource` (it has no effect on a caller-supplied source or when `disable_caching=True`). **`MCPSkillsSource` and `MCPSkill` accept exactly one of `client` (a fixed, already-entered high-level `Client` or deprecated caller-owned `ClientSession`) or the compatibility-named `session_provider` (`Callable[[], Client | ClientSession]`, resolved on every fetch); providing both/neither raises `ValueError`.** The source borrows the supplied connection and never enters or closes it. Use `session_provider` when an owner replaces its connection over time, so cached `MCPSkill`s keep fetching through the current normalized connection without reading `MCPTool.session`. - **MCP archive digests** - `MCPSkillsSource` verifies each non-null archive `digest` against the decoded ZIP bytes after the download-size guard and before extraction. The accepted form is `sha256:` followed by 64 lowercase hexadecimal characters. Omitted/null digests remain supported; malformed values (including non-string JSON), unsupported algorithms, and mismatches warn and skip only that archive. A successful `CachingSkillsSource` refresh therefore replaces its list without rejected archives; transport errors still propagate and leave the stored cache unchanged. Verification does not apply to lazy `skill-md` entries or their supporting resources. A digest only proves consistency with the index, not that the server or skill content is trustworthy. ### Model Context Protocol (`_mcp.py`) -- **`MCPTool`** - Base wrapper that owns the MCP `ClientSession` and exposes the remote server's tools as `FunctionTool`s. -- **`MCPStdioTool`** / **`MCPStreamableHTTPTool`** / **`MCPWebsocketTool`** - Transport-specific subclasses. +- **Client lifecycle design** - [ADR 0045](../../../docs/decisions/0045-python-mcp-v2-client-lifecycle.md) + defines the ownership boundary. Both framework-created and caller-supplied `_ClientMCPConnection` instances expose + and route operations through a high-level `mcp.Client`; their `session` remains `None`, and + `is_framework_owned` determines whether Agent Framework may manage the Client lifecycle. Caller-supplied + `_SessionMCPConnection` instances expose and call their `ClientSession` directly as a deprecated low-level + compatibility path. Consequently, `MCPTool.session` is meaningful only for that low-level path. +- **`MCPTool` connection state** - The private `_MCPConnection` Protocol is the normalized tools/prompts/catalog + surface. `_ClientMCPConnection` and `_SessionMCPConnection` each own one lifecycle responsibility; `None` means + disconnected, and the Client implementation is the single update point for SDK cache policy. +- **`MCPStdioTool`** / **`MCPStreamableHTTPTool`** - Supported transport-specific subclasses. + **`MCPWebsocketTool`** remains only as a deprecated compatibility symbol because MCP v2 removed WebSocket + transport; it cannot create a connection. - **Argument allowlist (`_prepare_call_kwargs`)** - Before each `tools/call`, kwargs are filtered to an **allowlist** built from the tool's declared parameters (`inputSchema.properties`) plus any user-configured extras. **The declared half comes from the server's advertised schema**, and runtime kwargs (`FunctionInvocationContext.kwargs`, seeded from `function_invocation_kwargs`) are merged with the model-supplied arguments upstream in `_call_tool_with_runtime_kwargs`, so provenance is gone by the time the filter runs. A runtime kwarg is therefore forwarded whenever the server declares a property of that name, without the model mentioning it — the server, not the caller, decides which runtime kwarg names it receives. A tool that declares no usable `properties` (including schemas with `additionalProperties: true`) forwards only the configured extras. `_MCP_FRAMEWORK_DENYLIST` is a narrow safety net covering only non-serializable framework objects a server *declares* in its schema (those are dropped); it does not generalize to arbitrary caller-chosen names, and explicit extras always win. The reserved `_meta` key is never forwarded as an argument; trusted caller/runtime `_meta` is validated as MCP request metadata, model-supplied `_meta` is discarded in generated MCP functions, and metadata precedence is caller/runtime < OpenTelemetry < tools/list metadata. - **`allowed_tools`** (constructor arg on all `MCPTool` subclasses) - Restricts exposed MCP tools by raw remote MCP tool identity. Prefixed local names remain accepted only when the raw remote name already matches its normalized form; normalized/local aliases do not authorize a different raw remote name. Configured allow/approval names must identify at most one raw remote name across loaded tools and prompts: a raw name that overlaps another tool's prefixed alias raises `ToolExecutionException`. Discovery validates all pages before publishing new functions; a failed reload retains the previous functions and metadata. The allowlist is also revalidated when exposing functions so runtime changes cannot select an ambiguous name. If multiple raw remote tool names map to the same local function name, tool loading raises `ToolExecutionException` instead of first-one-wins shadowing. -- **Progressive MCP disclosure** (`use_progressive_disclosure`, `always_load`) - When enabled on any `MCPTool` subclass, the initial model-facing surface is loader tools (`list_mcp_tools` / `load_tool` / `unload_tool`, prefixed by `tool_name_prefix` when configured) plus allowed tools selected by `always_load` and tools loaded earlier on the same `MCPTool` instance. `list_mcp_tools` only reports tools that pass `allowed_tools`; filtered tools are not listed or loadable. Loader tool names are reserved in progressive mode: remote MCP tools whose local generated name collides with a loader name are omitted from the initial/listed surface, and explicit `load_tool` calls return a model-visible message pointing callers to `tool_name_prefix` or excluding the colliding tool. `load_tool` accepts one tool name or a list of tool names and uses `FunctionInvocationContext.add_tools(...)` so the selected generated MCP `FunctionTool`s become available on the next function-calling iteration while keeping existing approval mode, argument filtering, header-provider runtime kwargs, result parsing, OTel, and task behavior. `unload_tool` accepts one dynamically loaded tool name or a list of names and removes them from the live tool list and persisted progressive surface, but it does not remove tools configured in `always_load`. Invalid `always_load` entries are ignored like unmatched `allowed_tools` entries. +- **Progressive MCP disclosure** (`use_progressive_disclosure`, `always_load`) - When enabled on any `MCPTool` subclass, the initial model-facing surface is loader tools (`list_mcp_tools` / `load_tool` / `unload_tool`, prefixed by `tool_name_prefix` when configured) plus allowed tools selected by `always_load` and tools loaded earlier on the same `MCPTool` instance. `list_mcp_tools` only reports tools that pass `allowed_tools`; filtered tools are not listed or loadable. Loader tool names are reserved in progressive mode: remote MCP tools whose local generated name collides with a loader name are omitted from the initial/listed surface, and explicit `load_tool` calls return a model-visible message pointing callers to `tool_name_prefix` or excluding the colliding tool. `load_tool` accepts one tool name or a list of tool names and uses `FunctionInvocationContext.add_tools(...)` so the selected generated MCP `FunctionTool`s become available on the next function-calling iteration while keeping existing approval mode, argument filtering, header-provider runtime kwargs, result parsing, and OTel. `unload_tool` accepts one dynamically loaded tool name or a list of names and removes them from the live tool list and persisted progressive surface, but it does not remove tools configured in `always_load`. Invalid `always_load` entries are ignored like unmatched `allowed_tools` entries. - **Tool discovery refresh** - Validate the complete current tool snapshot alongside retained non-tool functions, not stale tool wrappers. Successful refreshes atomically replace the previous tool set and metadata, including empty snapshots, while preserving prompts, custom functions, and unchanged tool wrappers (including caller customizations). Removed or replaced tool identities lose their persisted progressive-loaded state; failed refreshes preserve the previous state. - **`additional_tool_argument_names`** (constructor arg on all `MCPTool` subclasses) - Opt extra argument names back into the allowlist. Accepts a `Sequence[str]` (applied to every tool) or a `Mapping[str, Sequence[str]]` keyed by **remote tool name**, where the reserved key `"*"` denotes global extras. It is configured only in user code at construction; there is **no per-call/runtime override**, so a model-issued tool call cannot change which names pass through — but note this constrains the *model*, not the *server*, which still widens the effective allowlist through its schema. To use a server that accepts `additionalProperties: true`, list the extra names here and then either (1) manually extend that tool's `inputSchema` (via the `.functions` list after connecting) so the model is prompted to supply them, or (2) supply the values yourself via `function_invocation_kwargs`. If a normal forwarded argument name is supplied by both the model and `function_invocation_kwargs`, the model-supplied value wins; `_meta` is the exception and only trusted runtime/caller metadata is used. - **MCP HTTP header request scoping** - `static_headers` supplies fixed, origin-scoped headers without serializing concurrent calls. Generated tool and prompt calls give `header_provider` only host runtime kwargs, separately from model arguments; direct `call_tool` calls give it caller kwargs. Model-over-runtime precedence is confined to outbound tool arguments. Fixed and dynamic headers form the session's complete effective identity (case-insensitive names, case-sensitive values), with dynamic values overriding fixed values of the same name. Agent runs reconcile a connected tool before copying its functions; generated tool and prompt calls perform the same check at invocation. Connected run preparation defers when a provider needs runtime values supplied by invocation middleware; invocation-time resolution remains strict. A different identity waits for in-flight discovery, reconnects framework-created sessions without loading, then refreshes session-derived discovery under the same lock. Because a caller-supplied session's established identity is unknown and the wrapper cannot reconnect it, dynamic header resolution on that wrapper is rejected even while disconnected. Ambient requests retain the bound set. With a shared `http_client`, processing stays scoped to the originating `MCPStreamableHTTPTool`, and every injected header is stripped from cross-origin redirects. The session exit stack removes its request hook after transport shutdown, including failed initialization or discovery, and closes framework-created HTTP clients. Failed discovery resets the connection and discovery flags and rolls back partial function/metadata additions. Framework-created sessions are discarded; constructor-supplied sessions remain caller-owned and reusable across cleanup, close, and reset. @@ -221,14 +231,12 @@ The vector store API is experimental under the shared `VECTOR_STORES` feature ID - **Streamable HTTP cookies** - Framework-created clients reject response-cookie persistence with or without a `header_provider`; explicit `Cookie` headers from `static_headers` or a provider remain supported. Caller-provided clients retain their cookie behavior and ownership. Applications requiring cookie persistence must scope clients and MCP sessions to one authenticated principal. Cookie rejection does not isolate MCP protocol sessions or other server-side state. - **`function_invocation_kwargs` and MCP servers** - That dict is shared across every tool in the run, including every attached `MCPTool`, and any name in it reaches a server that declares a matching `inputSchema` property. `header_provider` does not mitigate this — it reads the kwargs without consuming them. To keep a credential out of tool arguments, source it outside `function_invocation_kwargs`: read a `ContextVar` inside the provider (this still allows a different value per request), configure a custom `http_client`, or use `env` for `MCPStdioTool`. - **Sampling guardrails** (`sampling_callback`) - Passing `client=` advertises `SamplingCapability` so the server can send `sampling/createMessage`. Because remote servers are untrusted (confused-deputy risk), the default `sampling_callback` is **deny-by-default** and applies, in order: a per-session rate limit (`sampling_max_requests`, default `_DEFAULT_SAMPLING_MAX_REQUESTS`), an approval gate (`sampling_approval_callback`), and a `maxTokens` cap (`sampling_max_tokens`, default `_DEFAULT_SAMPLING_MAX_TOKENS`). The approval callback (constructor arg on all subclasses; exported type alias `SamplingApprovalCallback`) receives the raw `CreateMessageRequestParams`, may be sync or async, and must return truthy to approve. When it is `None` (the default) every sampling request is denied; pass `lambda params: True` to restore legacy auto-approve as an explicit opt-in. Requests and denials are logged at WARNING (content is not logged). The per-session counter resets in `_reset_session_state`. -- **`MCPTaskOptions`** (experimental, `MCP_LONG_RUNNING_TASKS` feature, **frozen**) - Per-tool-instance options controlling the SEP-2663 long-running task lifecycle. When the server advertises a tool with `execution.taskSupport == "required"`, `MCPTool.call_tool` transparently routes through `call_tool_as_task`, which sends an augmented `tools/call`, polls `tasks/get` until terminal, and reinterprets `tasks/result` as a normal `CallToolResult`. Instances are immutable; replace via `MCPTool.task_options = MCPTaskOptions(...)`. Fields: - - `default_ttl: timedelta | None` — forwarded to the server as `params.task.ttl` (milliseconds). When `None`, the server's default applies. - - `cancel_remote_task_on_local_cancellation: bool = True` — only gates the `CancelledError` path. Abandonment paths (see below) always cancel. - - `max_task_wait: timedelta | None` — client-side deadline for the whole post-create lifecycle (poll + result fetch). When exceeded, raises `ToolExecutionException` and fires a best-effort `tasks/cancel`. `None` (default) means no client-side bound. Bounds sleeps, sends, AND reconnects via `asyncio.wait_for`. -- **Permissive fallback**: servers that ignore the augmentation (return `CallToolResult` directly) or reject the unknown `task` field with `METHOD_NOT_FOUND` / `INVALID_PARAMS` fall back to the plain `session.call_tool(...)` path so legacy servers keep working. An unparseable success response (server accepted the augmented call but returned a payload that is neither `CreateTaskResult` nor `CallToolResult`) **does not** fall back — it raises `ToolExecutionException` to avoid double-executing a side-effecting tool. -- **Submit-vs-track reconnect policy**: a dropped connection before a `task_id` is known raises `ToolExecutionException("connection lost; task state unknown")` without re-issuing the augmented `tools/call`, so a server that accepted the request but lost the response cannot be made to start the same operation twice; once a `task_id` exists, `tasks/get` / `tasks/result` reconnect once and retry against the same id (a shared `_send_with_one_reconnect` helper). -- **Cancel-on-abandonment vs terminal failure**: any path where the remote task may still be running (max-wait exceeded, hard `McpError` in poll, malformed `tasks/get`, second connection loss in poll/fetch, reconnect failure) fires best-effort `tasks/cancel` before raising. Terminal failures (`failed`/`cancelled`/`input_required` server-side, `completed+isError`, malformed `tasks/result` after server completed) do **not** cancel — the server is already done. `_MCPTaskAbandoned` is the private marker distinguishing the two. -- **Transient poll retry**: a slow `tasks/get` that surfaces as `McpError(code=408 REQUEST_TIMEOUT)` is retried (bounded by `max_task_wait`). All other non-connection `McpError`s during poll are treated as abandonment. `tasks/result` does not get transient retry — the server has already completed, so a slow payload fetch is anomalous. +- **MCP response caching** - High-level Clients use SDK response caching for tool/prompt catalogs and resource reads + regardless of whether Agent Framework or the caller owns the Client, honoring modern server `ttlMs` / + `cacheScope` hints. Legacy peers default to zero TTL, caller-supplied `ClientSession` connections stay uncached, + and reconnect or effective header-identity changes replace a framework-owned Client's per-Client cache. Agent + Framework does not expose shared-store or cache-mode configuration. +- **MCP Tasks extension** - MCP Python SDK 2.2 does not implement the 2026 `io.modelcontextprotocol/tasks` runtime. Tools that advertise `execution.taskSupport == "required"` are skipped with a warning; optional and task-free tools continue through ordinary `tools/call`. Restoration of the experimental Tasks API and removed sample is tracked in microsoft/agent-framework#8245. ### File Access Harness (`_harness/_file_access.py`) diff --git a/python/packages/core/agent_framework/_agents.py b/python/packages/core/agent_framework/_agents.py index 2c7db9327c1..a6e7ccddf88 100644 --- a/python/packages/core/agent_framework/_agents.py +++ b/python/packages/core/agent_framework/_agents.py @@ -1881,8 +1881,9 @@ def as_mcp_server( """ try: from mcp import types + from mcp.server import ServerRequestContext from mcp.server.lowlevel import Server - from mcp.shared.exceptions import McpError + from mcp.shared.exceptions import MCPError except ModuleNotFoundError as exc: raise ModuleNotFoundError( "`mcp` is required to use `Agent.as_mcp_server()`. Please install `mcp`." @@ -1891,55 +1892,57 @@ def as_mcp_server( server_args: dict[str, Any] = { "name": server_name, - "version": version, "instructions": instructions, } + + if version is not None: + server_args["version"] = version + if lifespan: server_args["lifespan"] = lifespan if kwargs: server_args.update(kwargs) - server: Server[Any] = Server(**server_args) - agent_tool = self.as_tool(name=self._get_agent_name()) - async def _log(level: types.LoggingLevel, data: Any) -> None: - """Log a message to the server and logger.""" - # Log to the local logger + async def _log(ctx: ServerRequestContext[dict[str, Any]], level: types.LoggingLevel, data: Any) -> None: + """Log locally and forward through the session handling this request.""" logger.log(LOG_LEVEL_MAPPING[level], data) - if server and server.request_context and server.request_context.session: - try: - await server.request_context.session.send_log_message(level=level, data=data) - except Exception as e: - logger.error("Failed to send log message to server: %s", e) - - @server.list_tools() - async def _list_tools() -> list[types.Tool]: + try: + await ctx.session.send_log_message( # pyright: ignore[reportDeprecated] + level=level, + data=data, + ) + except Exception as exc: + logger.error("Failed to send log message to MCP client: %s", exc) + + async def _list_tools( + ctx: ServerRequestContext[dict[str, Any]], _params: types.PaginatedRequestParams | None + ) -> types.ListToolsResult: """List all tools in the agent.""" schema = agent_tool.parameters() tool = types.Tool( name=agent_tool.name, description=agent_tool.description, - inputSchema=schema, + input_schema=schema, ) - await _log(level="debug", data=f"Agent tool: {agent_tool}") - return [tool] + await _log(ctx, level="debug", data=f"Agent tool: {agent_tool}") + return types.ListToolsResult(tools=[tool]) - @server.call_tool() async def _call_tool( - name: str, arguments: dict[str, Any] - ) -> Sequence[types.TextContent | types.ImageContent | types.AudioContent | types.EmbeddedResource]: + ctx: ServerRequestContext[dict[str, Any]], params: types.CallToolRequestParams + ) -> types.CallToolResult: """Call a tool in the agent.""" - await _log(level="debug", data=f"Calling tool with args: {arguments}") + arguments = params.arguments or {} + name = params.name + await _log(ctx, level="debug", data=f"Calling tool with args: {arguments}") if name != agent_tool.name: - raise McpError( - error=types.ErrorData( - code=types.INTERNAL_ERROR, - message=f"Tool {name} not found", - ), + raise MCPError( + code=types.INTERNAL_ERROR, + message=f"Tool {name} not found", ) # Create an instance of the input model with the arguments @@ -1949,17 +1952,15 @@ async def _call_tool( ) result = await agent_tool.invoke(arguments=args_instance) except Exception as e: - raise McpError( - error=types.ErrorData( - code=types.INTERNAL_ERROR, - message=f"Error calling tool {name}: {e}", - ), + raise MCPError( + code=types.INTERNAL_ERROR, + message=f"Error calling tool {name}: {e}", ) from e # Convert result to MCP content. # Currently only text items are forwarded over MCP; rich content # (images, audio) is not yet supported in the MCP server path. - mcp_content: list[types.TextContent | types.ImageContent | types.EmbeddedResource] = [] + mcp_content: list[types.ContentBlock] = [] for c in result: if c.type == "text" and c.text: mcp_content.append(types.TextContent(type="text", text=c.text)) @@ -1968,15 +1969,22 @@ async def _call_tool( "MCP server does not yet forward rich content (images, audio) " "in tool results. Rich content items will be omitted." ) - return mcp_content or [types.TextContent(type="text", text="")] - - @server.set_logging_level() - async def _set_logging_level(level: types.LoggingLevel) -> None: - """Set the logging level for the server.""" - logger.setLevel(LOG_LEVEL_MAPPING[level]) - # emit this log with the new minimum level - await _log(level=level, data=f"Log level set to {level}") - + return types.CallToolResult(content=mcp_content) + + async def _set_logging_level( + ctx: ServerRequestContext[dict[str, Any]], params: types.SetLevelRequestParams + ) -> types.EmptyResult: + """Set the local threshold and confirm it through the requesting MCP session.""" + logger.setLevel(LOG_LEVEL_MAPPING[params.level]) + await _log(ctx, level=params.level, data=f"Log level set to {params.level}") + return types.EmptyResult() + + server: Server[Any] = Server( # pyright: ignore[reportDeprecated] + **server_args, + on_list_tools=_list_tools, + on_call_tool=_call_tool, + on_set_logging_level=_set_logging_level, + ) return server def _get_agent_name(self) -> str: diff --git a/python/packages/core/agent_framework/_feature_stage.py b/python/packages/core/agent_framework/_feature_stage.py index 24309e0b144..9421c12cc27 100644 --- a/python/packages/core/agent_framework/_feature_stage.py +++ b/python/packages/core/agent_framework/_feature_stage.py @@ -60,7 +60,6 @@ class ExperimentalFeature(str, Enum): FOUNDRY_PREVIEW_TOOLS = "FOUNDRY_PREVIEW_TOOLS" FUNCTIONAL_WORKFLOWS = "FUNCTIONAL_WORKFLOWS" HARNESS = "HARNESS" - MCP_LONG_RUNNING_TASKS = "MCP_LONG_RUNNING_TASKS" MCP_SKILLS = "MCP_SKILLS" PROGRESSIVE_TOOLS = "PROGRESSIVE_TOOLS" SESSION_STORE = "SESSION_STORE" diff --git a/python/packages/core/agent_framework/_filesystem.py b/python/packages/core/agent_framework/_filesystem.py index 512ca17ff7f..c4bf4c89244 100644 --- a/python/packages/core/agent_framework/_filesystem.py +++ b/python/packages/core/agent_framework/_filesystem.py @@ -5,7 +5,9 @@ from __future__ import annotations import hashlib +import os import stat +import uuid from base64 import b32encode from pathlib import Path @@ -44,6 +46,33 @@ _DIGEST_SEGMENT_MARKER = "sha256-" +def _atomic_write_text(path: Path, text: str, *, encoding: str = "utf-8") -> None: # pyright: ignore[reportUnusedFunction] + """Atomically write text through a securely created sibling temporary file. + + Exclusive creation prevents an existing file or symbolic link from redirecting the write. + """ + path.parent.mkdir(parents=True, exist_ok=True) + temp_path = path.with_name(f".maf-state-{uuid.uuid4().hex}.tmp") + cleanup_path: Path | None = None + file_descriptor: int | None = None + try: + file_descriptor = os.open(temp_path, os.O_CREAT | os.O_EXCL | os.O_WRONLY, 0o666) + cleanup_path = temp_path + file_handle = os.fdopen(file_descriptor, "w", encoding=encoding, closefd=False) + with file_handle: + file_handle.write(text) + descriptor_to_close = file_descriptor + file_descriptor = None + os.close(descriptor_to_close) + os.replace(temp_path, path) + cleanup_path = None + finally: + if file_descriptor is not None: + os.close(file_descriptor) + if cleanup_path is not None: + cleanup_path.unlink(missing_ok=True) + + def _is_link_or_reparse_point(path: Path) -> bool: # pyright: ignore[reportUnusedFunction] """Return whether ``path`` is a symbolic link, junction, or other reparse point.""" path_stat = path.lstat() diff --git a/python/packages/core/agent_framework/_harness/_loop.py b/python/packages/core/agent_framework/_harness/_loop.py index b4617a23e01..0a147824335 100644 --- a/python/packages/core/agent_framework/_harness/_loop.py +++ b/python/packages/core/agent_framework/_harness/_loop.py @@ -654,10 +654,11 @@ async def _generator() -> Any: f"got {type(inner).__name__}." ) - async for update in inner: - yield update + async with inner: + async for update in inner: + yield update - holder["final"] = await inner.get_final_response() + holder["final"] = await inner.get_final_response() except MiddlewareTermination: # The pipeline's MiddlewareTermination suppression is no longer active once # process() has returned (the stream is consumed lazily), so a termination diff --git a/python/packages/core/agent_framework/_harness/_memory.py b/python/packages/core/agent_framework/_harness/_memory.py index 66957756261..c3f02f883b5 100644 --- a/python/packages/core/agent_framework/_harness/_memory.py +++ b/python/packages/core/agent_framework/_harness/_memory.py @@ -5,7 +5,6 @@ import asyncio import json import logging -import os import re import threading import weakref @@ -20,7 +19,10 @@ from .._clients import SupportsChatGetResponse from .._compaction import group_messages from .._feature_stage import ExperimentalFeature, experimental -from .._filesystem import _storage_key_segment # pyright: ignore[reportPrivateUsage] +from .._filesystem import ( + _atomic_write_text, # pyright: ignore[reportPrivateUsage] + _storage_key_segment, # pyright: ignore[reportPrivateUsage] +) from .._sessions import AgentSession, FileHistoryProvider, HistoryProvider, JsonDumps, JsonLoads, SessionContext from .._telemetry import FeatureIndex, mark_feature_used from .._tools import tool @@ -122,22 +124,6 @@ def _unescape_markdown_line(line: str) -> str: return line -def _atomic_write_text(path: Path, text: str, *, encoding: str = "utf-8") -> None: - """Write text to ``path`` atomically via a sibling temp file plus :func:`os.replace`. - - A crash, OOM, or disk-full mid-write leaves the previous file (if any) intact instead of - producing a truncated file that breaks every subsequent read. - """ - path.parent.mkdir(parents=True, exist_ok=True) - temp_path = path.with_name(f"{path.name}.tmp.{os.getpid()}") - try: - temp_path.write_text(text, encoding=encoding) - os.replace(temp_path, path) - finally: - if temp_path.exists(): - temp_path.unlink(missing_ok=True) - - def _slugify_topic(topic: str) -> str: slug = re.sub(r"[^a-z0-9]+", "-", _normalize_topic(topic).lower()).strip("-") return slug or "memory-topic" @@ -661,7 +647,11 @@ def search_transcripts( @experimental(feature_id=ExperimentalFeature.HARNESS) class MemoryFileStore(MemoryStore): - """Store memory files under ``MEMORY.md``, ``topics/``, and ``transcripts/``.""" + """Store memory files under ``MEMORY.md``, ``topics/``, and ``transcripts/``. + + The storage directory must not be writable by untrusted users, because they could + replace the final memory files independently of this store's secure temporary writes. + """ def __init__( self, diff --git a/python/packages/core/agent_framework/_harness/_todo.py b/python/packages/core/agent_framework/_harness/_todo.py index daa554a585e..7aaeeecb2a3 100644 --- a/python/packages/core/agent_framework/_harness/_todo.py +++ b/python/packages/core/agent_framework/_harness/_todo.py @@ -4,7 +4,6 @@ import asyncio import json -import os import weakref from abc import ABC, abstractmethod from collections.abc import Mapping, MutableMapping @@ -15,6 +14,7 @@ from .._feature_stage import ExperimentalFeature, experimental from .._filesystem import ( + _atomic_write_text, # pyright: ignore[reportPrivateUsage] _is_literal_storage_key_segment_safe, # pyright: ignore[reportPrivateUsage] _storage_key_segment, # pyright: ignore[reportPrivateUsage] ) @@ -289,7 +289,11 @@ async def save_state(self, session: AgentSession, items: list[TodoItem], *, next @experimental(feature_id=ExperimentalFeature.HARNESS) class TodoFileStore(TodoStore): - """Store todo state in one JSON file per session and source ID.""" + """Store todo state in one JSON file per session and source ID. + + The storage directory must not be writable by untrusted users, because they could + replace the final todo files independently of this store's secure temporary writes. + """ def __init__( self, @@ -404,16 +408,7 @@ async def save_state(self, session: AgentSession, items: list[TodoItem], *, next @staticmethod def _save_state_sync(state_path: Path, payload: str) -> None: """Synchronous helper that atomically writes the JSON state file.""" - state_path.parent.mkdir(parents=True, exist_ok=True) - # Write to a sibling temp file then atomically replace, so a crash mid-write cannot leave - # a truncated state file that breaks every subsequent tool call. - temp_path = state_path.with_name(f"{state_path.name}.tmp.{os.getpid()}") - try: - temp_path.write_text(payload, encoding="utf-8") - os.replace(temp_path, state_path) - finally: - if temp_path.exists(): - temp_path.unlink(missing_ok=True) + _atomic_write_text(state_path, payload) class TodoProvider(ContextProvider): diff --git a/python/packages/core/agent_framework/_harness/_tool_approval.py b/python/packages/core/agent_framework/_harness/_tool_approval.py index e487a306a57..7c6df089c9d 100644 --- a/python/packages/core/agent_framework/_harness/_tool_approval.py +++ b/python/packages/core/agent_framework/_harness/_tool_approval.py @@ -239,6 +239,13 @@ def to_dict(self, *, exclude: set[str] | None = None, exclude_none: bool = True) def create_always_approve_tool_response(request: Content, *, reason: str | None = None) -> Content: """Create an approval response that records a standing rule for the whole tool. + .. warning:: + Standing rules are stored in the supplied :class:`AgentSession` and are + not tied to the agent or tool instance that created the request. Before + reusing the session with a different agent or tool set, especially one + that can load tools from an outside source such as MCP, ensure the rule + is still appropriate for every matching tool name. + Args: request: The ``function_approval_request`` content to approve. @@ -253,7 +260,15 @@ def create_always_approve_tool_response(request: Content, *, reason: str | None def create_always_approve_tool_with_arguments_response(request: Content, *, reason: str | None = None) -> Content: - """Create an approval response that records a standing rule for the tool and exact arguments.""" + """Create an approval response that records a standing rule for the tool and exact arguments. + + .. warning:: + Standing rules are stored in the supplied :class:`AgentSession` and are + not tied to the agent or tool instance that created the request. Before + reusing the session with a different agent or tool set, especially one + that can load tools from an outside source such as MCP, ensure the rule + is still appropriate for every matching tool name and argument set. + """ return _create_always_approve_response(request, ALWAYS_APPROVE_TOOL_WITH_ARGUMENTS, reason=reason) @@ -367,6 +382,19 @@ class ToolApprovalMiddleware(AgentMiddleware): This middleware is opt-in and requires callers to run the agent with an :class:`AgentSession`, because approval rules and queued requests are stored in session state. + + .. warning:: + **Security.** Standing approval rules persist in the supplied session + and are not tied to the agent or tool instance that recorded them. + Reusing the session with a different or rebuilt agent, or with a changed + tool set, can let another tool with the same name match an earlier rule. + This is especially important when tools can come from an outside source + such as MCP. Before passing such a session to the agent, ensure its + standing approvals are still valid for all tools the agent can use. A + changed tool does not always require a new approval. For example, an + upgraded agent may use an improved version of a tool for which the old + approval is still appropriate. The developer must decide whether each + standing approval should carry over to the changed tool. """ def __init__( diff --git a/python/packages/core/agent_framework/_mcp.py b/python/packages/core/agent_framework/_mcp.py index 259f3c2dba8..5e8fc27acb6 100644 --- a/python/packages/core/agent_framework/_mcp.py +++ b/python/packages/core/agent_framework/_mcp.py @@ -4,8 +4,6 @@ import asyncio import base64 -import contextlib -import contextvars import json import logging import re @@ -14,12 +12,13 @@ from abc import abstractmethod from collections.abc import Callable, Collection, Coroutine, Mapping, Sequence from contextlib import AsyncExitStack, _AsyncGeneratorContextManager # type: ignore +from contextvars import ContextVar from copy import copy from dataclasses import dataclass -from datetime import date, datetime, timedelta +from datetime import date, datetime from http.cookiejar import CookieJar, DefaultCookiePolicy from inspect import isawaitable -from typing import TYPE_CHECKING, Any, Literal, TypeAlias, TypedDict, cast +from typing import TYPE_CHECKING, Any, Literal, Protocol, TypeAlias, TypedDict, cast if sys.version_info >= (3, 13): from warnings import deprecated # pragma: no cover @@ -34,7 +33,6 @@ ExperimentalFeature, ExperimentalWarning, _warn_on_feature_use, # pyright: ignore[reportPrivateUsage] - experimental, ) from ._serialization import make_json_safe from ._telemetry import FeatureIndex, mark_feature_used @@ -63,11 +61,13 @@ from typing_extensions import Self # pragma: no cover if TYPE_CHECKING: - from httpx import AsyncClient, Request, Response - from mcp import types + # TODO(jpalvarezl): clean up and consolidate under httpx2 + import httpx2 + from httpx import Request + from mcp import Client, types + from mcp.client import IncomingMessage + from mcp.client.context import ClientRequestContext from mcp.client.session import ClientSession - from mcp.shared.context import RequestContext - from mcp.shared.session import RequestResponder from ._clients import SupportsChatGetResponse from ._middleware import FunctionInvocationContext @@ -226,8 +226,9 @@ class MCPSpecificApproval(TypedDict, total=False): "response_format", "_meta", }) -_mcp_call_headers: contextvars.ContextVar[dict[str, str]] = contextvars.ContextVar("_mcp_call_headers") -_mcp_tool_runtime_context: contextvars.ContextVar[tuple[object, Mapping[str, Any]] | None] = contextvars.ContextVar( +# object is a reference to the owner of the headers, so we keep track which headers belong to which tool +_mcp_call_headers: ContextVar[tuple[object, dict[str, str]] | None] = ContextVar("_mcp_call_headers") +_mcp_tool_runtime_context: ContextVar[tuple[object, Mapping[str, Any]] | None] = ContextVar( "_mcp_tool_runtime_context", default=None ) _MCP_HEADER_OWNER_EXTENSION = "agent_framework.mcp_header_owner" @@ -235,6 +236,8 @@ class MCPSpecificApproval(TypedDict, total=False): _MCPHeaderIdentity: TypeAlias = tuple[tuple[str, str], ...] MCP_DEFAULT_TIMEOUT = 30 MCP_DEFAULT_SSE_READ_TIMEOUT = 60 * 5 +_MCP_SUBSCRIPTION_RETRY_INITIAL_DELAY = 0.1 +_MCP_SUBSCRIPTION_RETRY_MAX_DELAY = 2.0 _DEFAULT_MCP_HOST_PAYLOAD_SIZE_BYTES = 1024 * 1024 @@ -329,7 +332,7 @@ def prepare_model_result(self, parsed: str | list[Content]) -> list[Content]: return items -_mcp_host_payload_capture: contextvars.ContextVar[_MCPHostPayloadCapture | None] = contextvars.ContextVar( +_mcp_host_payload_capture: ContextVar[_MCPHostPayloadCapture | None] = ContextVar( "_mcp_host_payload_capture", default=None, ) @@ -510,7 +513,7 @@ def _capture_mcp_tool_result(mcp_type: Any) -> None: class _MCPHeaderScopedClient: """Attach private tool context to MCP transport requests.""" - def __init__(self, client: AsyncClient, owner: object) -> None: + def __init__(self, client: httpx2.AsyncClient, owner: object) -> None: self._client = client self._owner = owner @@ -534,7 +537,7 @@ def _tagged_kwargs(self, kwargs: dict[str, Any]) -> dict[str, Any]: def stream(self, *args: Any, **kwargs: Any) -> Any: return self._client.stream(*args, **self._tagged_kwargs(kwargs)) - async def send(self, request: Request, **kwargs: Any) -> Response: + async def send(self, request: httpx2.Request, **kwargs: Any) -> httpx2.Response: request.extensions[_MCP_HEADER_OWNER_EXTENSION] = self._owner return await self._client.send(request, **kwargs) @@ -542,6 +545,172 @@ async def delete(self, *args: Any, **kwargs: Any) -> Any: return await self._client.delete(*args, **self._tagged_kwargs(kwargs)) +class _MCPConnection(Protocol): + """Normalized MCP connection surface used by MCPTool.""" + + """Return the high-level Client when this connection has one.""" + client: Client | None + + """Return the low-level compatibility session.""" + session: ClientSession | None + + """Return whether Agent Framework owns this connection.""" + is_framework_owned: bool + + async def call_tool( + self, + name: str, + arguments: Mapping[str, Any] | None, + *, + meta: types.RequestParamsMeta | None, + ) -> types.CallToolResult: + """Call a tool through this connection.""" + ... + + async def get_prompt(self, name: str, arguments: Mapping[str, str] | None) -> types.GetPromptResult: + """Get a prompt through this connection.""" + ... + + async def list_tools_page(self, params: types.PaginatedRequestParams | None) -> types.ListToolsResult: + """List one tools page through this connection.""" + ... + + async def list_prompts_page(self, params: types.PaginatedRequestParams | None) -> types.ListPromptsResult: + """List one prompts page through this connection.""" + ... + + async def set_logging_level(self, level: types.LoggingLevel) -> None: + """Set the legacy logging level through this connection.""" + ... + + async def check_connection(self) -> None: + """Check the connection with the MCP server, depending on the version.""" + ... + + async def read_resource(self, uri: str) -> types.ReadResourceResult: + """Read a resource through this connection.""" + ... + + +class _ClientMCPConnection: + """MCP connection backed by a high-level Client.""" + + def __init__(self, client: Client, *, is_framework_owned: bool) -> None: + self.client: Client | None = client + self.session: ClientSession | None = None + self.is_framework_owned = is_framework_owned + self._client = client + + async def call_tool( + self, + name: str, + arguments: Mapping[str, Any] | None, + *, + meta: types.RequestParamsMeta | None, + ) -> types.CallToolResult: + """Call a tool through the high-level Client.""" + return await self._client.call_tool( + name, + arguments=dict(arguments) if arguments is not None else None, + meta=meta, + ) + + async def get_prompt(self, name: str, arguments: Mapping[str, str] | None) -> types.GetPromptResult: + """Get a prompt through the high-level Client.""" + return await self._client.get_prompt(name, arguments=dict(arguments) if arguments is not None else None) + + async def list_tools_page(self, params: types.PaginatedRequestParams | None) -> types.ListToolsResult: + """List one tools page while honoring server cache hints.""" + return await self._client.list_tools( + cursor=params.cursor if params is not None else None, + ) + + async def list_prompts_page(self, params: types.PaginatedRequestParams | None) -> types.ListPromptsResult: + """List one prompts page while honoring server cache hints.""" + return await self._client.list_prompts( + cursor=params.cursor if params is not None else None, + ) + + async def set_logging_level(self, level: types.LoggingLevel) -> None: + """Set legacy logging; modern request metadata is configured in the Client constructor.""" + if self._client.session.initialize_result is None: + return + await self._client.set_logging_level(level) # pyright: ignore[reportDeprecated] + + async def check_connection(self) -> None: + """Check legacy Client connections; modern MCP has no ping.""" + if self._client.session.initialize_result is None: + return + + await self._client.send_ping() # pyright: ignore[reportDeprecated] + + async def read_resource(self, uri: str) -> types.ReadResourceResult: + """Read a resource through the high-level Client while honoring server cache hints.""" + return await self._client.read_resource(uri, cache_mode="use") + + +class _SessionMCPConnection: + """MCP connection backed by a low-level ClientSession.""" + + def __init__(self, session: ClientSession) -> None: + self.session: ClientSession | None = session + self.client: Client | None = None + self.is_framework_owned = False + self._session = session + + async def call_tool( + self, + name: str, + arguments: Mapping[str, Any] | None, + *, + meta: types.RequestParamsMeta | None, + ) -> types.CallToolResult: + """Call a tool directly through the session.""" + return await self._session.call_tool( + name, + arguments=dict(arguments) if arguments is not None else None, + meta=meta, + ) + + async def get_prompt(self, name: str, arguments: Mapping[str, str] | None) -> types.GetPromptResult: + """Get a prompt directly through the session.""" + return await self._session.get_prompt(name, arguments=dict(arguments) if arguments is not None else None) + + async def list_tools_page(self, params: types.PaginatedRequestParams | None) -> types.ListToolsResult: + """List one tools page directly through the session.""" + return await self._session.list_tools(params=params) + + async def list_prompts_page(self, params: types.PaginatedRequestParams | None) -> types.ListPromptsResult: + """List one prompts page directly through the session.""" + return await self._session.list_prompts(params=params) + + async def set_logging_level(self, level: types.LoggingLevel) -> None: + """Set the legacy logging level directly through the session.""" + if self._session.initialize_result is None: + return + await self._session.set_logging_level(level) # pyright: ignore[reportDeprecated] + + async def check_connection(self) -> None: + """Check the connection with the MCP server through this session.""" + if self._session.initialize_result is None: + return + await self._session.send_ping() + + async def read_resource(self, uri: str) -> types.ReadResourceResult: + """Read a resource through this connection.""" + return await self._session.read_resource(uri) + + +def _as_mcp_connection( # pyright: ignore[reportUnusedFunction] + client: Client | ClientSession, +) -> _MCPConnection: + from mcp import Client as MCPClient + + if isinstance(client, MCPClient): + return _ClientMCPConnection(client, is_framework_owned=False) + return _SessionMCPConnection(client) + + # Default safety limits applied to server-initiated MCP sampling requests # (``sampling/createMessage``). MCP servers are untrusted third parties, so the # default ``sampling_callback`` denies requests unless an approval callback is @@ -552,8 +721,14 @@ async def delete(self, *args: Any, **kwargs: Any) -> Any: _DEFAULT_SAMPLING_MAX_TOKENS = 4096 _DEFAULT_SAMPLING_MAX_REQUESTS = 25 _MCP_SAMPLING_DEPRECATION_MESSAGE = ( - "MCP sampling is deprecated as of MCP specification version 2026-07-28 and will be removed no later than " - "2027-07-28. MCP servers should call LLM provider APIs directly." + "MCP sampling is deprecated as of MCP specification version 2026-07-28. Under the MCP feature lifecycle, " + "it remains supported for at least twelve months before becoming eligible for removal. " + "MCP servers should call LLM provider APIs directly." +) +_MCP_SESSION_DEPRECATION_MESSAGE = ( + "`MCPTool.session` is deprecated and will be removed in vNext. " + "Use a high-level `mcp.Client` via `mcp_client=`. " + "See https://github.com/microsoft/agent-framework/issues/9452." ) # A user-supplied gate invoked before each server-initiated sampling request is @@ -583,6 +758,15 @@ def _is_mcp_prompt_function(func: FunctionTool) -> bool: return isinstance(properties.get(_MCP_REMOTE_NAME_KEY), str) and not properties.get(_MCP_IS_TOOL_KEY) +def _to_mcp_logging_level(level: int) -> types.LoggingLevel | None: + """Map a Python logging level to its MCP equivalent.""" + if level == logging.NOTSET: + return None + return cast( + "types.LoggingLevel | None", next((name for name, value in LOG_LEVEL_MAPPING.items() if value == level), None) + ) + + def _get_input_model_from_mcp_prompt(prompt: types.Prompt) -> dict[str, Any]: """Get the input model from an MCP prompt. @@ -631,6 +815,18 @@ def _build_prefixed_mcp_name( return f"{normalized_prefix}_{trimmed_name}" if trimmed_name else normalized_prefix +@deprecated( + "MCP Tasks support was removed during the MCP SDK 2.x migration. " + "MCPTaskOptions is retained only for import compatibility.", + category=DeprecationWarning, +) +class MCPTaskOptions: + """Deprecated compatibility shim for the removed MCP Tasks API.""" + + def __init__(self, *args: Any, **kwargs: Any) -> None: + del args, kwargs + + def _normalize_additional_tool_argument_names( additional_tool_argument_names: Sequence[str] | Mapping[str, Sequence[str]] | None, ) -> tuple[set[str], dict[str, set[str]]]: @@ -734,7 +930,7 @@ def _validate_mcp_meta_key(key: str) -> None: raise _mcp_tool_execution_exception(f"Invalid MCP _meta key name: {key!r}.") -def _validate_mcp_meta(raw_meta: object | None) -> dict[str, Any] | None: +def _validate_mcp_meta(raw_meta: object | None) -> types.RequestParamsMeta | None: """Validate and copy MCP request metadata.""" if raw_meta is None: return None @@ -742,7 +938,7 @@ def _validate_mcp_meta(raw_meta: object | None) -> dict[str, Any] | None: raise _mcp_tool_execution_exception("MCP tool metadata provided via _meta must be a dict.") raw_meta_dict = cast(Mapping[object, Any], raw_meta) - meta: dict[str, Any] = {} + meta: types.RequestParamsMeta = {} for key, value in raw_meta_dict.items(): if not isinstance(key, str): raise _mcp_tool_execution_exception("MCP tool metadata provided via _meta must use string keys.") @@ -752,10 +948,10 @@ def _validate_mcp_meta(raw_meta: object | None) -> dict[str, Any] | None: def _inject_otel_into_mcp_meta( - meta: dict[str, Any] | None = None, + meta: types.RequestParamsMeta | None = None, *, overwrite: bool = False, -) -> dict[str, Any] | None: +) -> types.RequestParamsMeta | None: """Inject OpenTelemetry trace context into MCP request _meta via the global propagator(s).""" carrier: dict[str, str] = {} propagate.inject(carrier) @@ -789,81 +985,6 @@ def _mcp_header_identity(headers: Mapping[str, str]) -> _MCPHeaderIdentity: return tuple(sorted(normalized.items())) -# Internal polling bounds for MCP long-running tasks. Not user-tunable today; -# promote to MCPTaskOptions if a concrete need arises. -_MCP_TASK_MIN_POLL_INTERVAL = timedelta(milliseconds=500) -_MCP_TASK_MAX_POLL_INTERVAL = timedelta(seconds=5) -_MCP_TASK_CANCEL_TIMEOUT = timedelta(seconds=5) -_MCP_TASK_TERMINAL_STATUSES: frozenset[str] = frozenset({"completed", "failed", "cancelled", "input_required"}) - -# Total send attempts for a Phase 2 request (initial try + one reconnect-and-retry). -# A single transient disconnect should not abort a long-running task; sustained outages -# surface as ``_MCPTaskAbandoned`` after the second failure. -_MCP_RECONNECT_ATTEMPTS = 2 - - -class _MCPTaskAbandoned(ToolExecutionException): - """Raised when the remote MCP task may still be running and must be cancelled. - - Subclass of ToolExecutionException so callers see a normal tool failure. - """ - - def __init__(self, message: str, inner_exception: Exception | None = None) -> None: - """Create an abandonment exception without leaking details through automatic logs.""" - super().__init__( - message, - inner_exception=inner_exception, - log_level=_mcp_exception_log_level(), - ) - - -class _MCPDeadlineExpired(Exception): - """Internal marker for ``max_task_wait`` expiry; distinct from inner TimeoutError.""" - - -@experimental(feature_id=ExperimentalFeature.MCP_LONG_RUNNING_TASKS) -@dataclass(frozen=True) -class MCPTaskOptions: - """Options controlling how MCPTool drives the MCP long-running task lifecycle. - - When an MCP server advertises a tool with ``execution.taskSupport == "required"``, - the framework transparently drives the SEP-2663 ``tools/call`` → ``tasks/get`` - (polled) → ``tasks/result`` lifecycle so the agent sees a normal tool result. - - Instances are immutable; replace the whole object via - ``MCPTool.task_options = MCPTaskOptions(...)`` to change behavior. - - Attributes: - default_ttl: Optional task-record retention time forwarded to the server as - ``params.task.ttl`` (milliseconds, integer). The server keeps the task - record around this long after the task reaches a terminal status so the - client can still call ``tasks/get`` / ``tasks/result``; it does not - cancel a running task. When ``None``, the server applies its own default. - Must be positive if set (zero would expire the record before any client - could read it). - cancel_remote_task_on_local_cancellation: If True (default), a local - cancellation of the awaiting coroutine triggers a best-effort - ``tasks/cancel`` on the server before re-raising ``CancelledError``. - Only gates ``CancelledError``; abandonment paths (max-wait, - unrecoverable poll errors, lost connection after task_id is known) - always cancel regardless of this flag. - max_task_wait: Optional client-side deadline for the whole post-create - lifecycle (poll + result fetch). When exceeded, raises - ``ToolExecutionException`` and fires a best-effort ``tasks/cancel``. - ``None`` (default) means no client-side bound. Must be positive if set. - """ - - default_ttl: timedelta | None = None - cancel_remote_task_on_local_cancellation: bool = True - max_task_wait: timedelta | None = None - - def __post_init__(self) -> None: - if self.default_ttl is not None and self.default_ttl.total_seconds() <= 0: - raise ValueError("MCPTaskOptions.default_ttl must be positive.") - if self.max_task_wait is not None and self.max_task_wait.total_seconds() <= 0: - raise ValueError("MCPTaskOptions.max_task_wait must be positive.") - - def streamable_http_client(*args: Any, **kwargs: Any) -> _AsyncGeneratorContextManager[Any, None]: """Lazily import the MCP streamable HTTP transport.""" try: @@ -953,14 +1074,18 @@ class MCPTool: Note: MCPTool cannot be instantiated directly. Use one of the subclasses: - MCPStdioTool, MCPStreamableHTTPTool, or MCPWebsocketTool. + MCPStdioTool or MCPStreamableHTTPTool. + + Caching: + Modern high-level ``Client`` connections honor server-provided ``ttlMs`` and ``cacheScope`` hints through + the MCP SDK's per-Client response cache. Legacy servers and caller-supplied ``ClientSession`` connections + remain uncached under the default zero-TTL policy. Examples: See the subclass documentation for usage examples: - :class:`MCPStdioTool` for stdio-based MCP servers - :class:`MCPStreamableHTTPTool` for HTTP-based MCP servers - - :class:`MCPWebsocketTool` for WebSocket-based MCP servers """ def __init__( @@ -974,6 +1099,7 @@ def __init__( parse_tool_results: Callable[[types.CallToolResult], str | list[Content]] | None = None, load_prompts: bool = True, parse_prompt_results: Callable[[types.GetPromptResult], str] | None = None, + mcp_client: Client | None = None, session: ClientSession | None = None, request_timeout: int | None = None, client: SupportsChatGetResponse | None = None, @@ -981,7 +1107,7 @@ def __init__( sampling_max_tokens: int | None = _DEFAULT_SAMPLING_MAX_TOKENS, sampling_max_requests: int | None = _DEFAULT_SAMPLING_MAX_REQUESTS, additional_properties: dict[str, Any] | None = None, - task_options: MCPTaskOptions | None = None, + task_options: Any | None = None, additional_tool_argument_names: Sequence[str] | Mapping[str, Sequence[str]] | None = None, use_progressive_disclosure: bool = False, always_load: Collection[str] | None = None, @@ -992,76 +1118,15 @@ def __init__( """Initialize the MCP Tool base. Note: - Do not use this method, use one of the subclasses: MCPStreamableHTTPTool, MCPWebsocketTool - or MCPStdioTool. - - Args: - name: The name of the MCP tool. - description: A description of the MCP tool. - approval_mode: Whether approval is required to run tools. - allowed_tools: Optional allow-list of MCP tool names to expose as functions. - ``None`` (the default) exposes every tool advertised by the MCP server. - A non-empty collection exposes only the raw remote tools whose names appear in it. For - compatibility, the prefixed local function name is also accepted when the raw remote name already - matches its normalized form; normalized aliases do not authorize a different raw remote tool. - A configured name matching multiple raw remote names raises ``ToolExecutionException``. - An empty collection (``[]``) exposes no tools — if you simply want to - disable tool execution, prefer ``load_tools=False`` instead. ``[]`` is - useful as a runtime guard or when you want to load tool metadata for - inspection without exposing the tools for invocation. - tool_name_prefix: Optional prefix to prepend to exposed MCP function names. - load_tools: Whether to load tools from the MCP server. - parse_tool_results: An optional callable with signature - ``Callable[[types.CallToolResult], str]`` that overrides the default result - parsing. When ``None`` (the default), the built-in parser converts MCP types - directly to a string. If you need per-function result parsing, access the - ``.functions`` list after connecting and set ``result_parser`` on individual - ``FunctionTool`` instances. - load_prompts: Whether to load prompts from the MCP server. - parse_prompt_results: An optional callable with signature - ``Callable[[types.GetPromptResult], str]`` that overrides the default prompt - result parsing. When ``None`` (the default), the built-in parser converts - MCP prompt results to a string. If you need per-function result parsing, - access the ``.functions`` list after connecting and set ``result_parser`` on - individual ``FunctionTool`` instances. - session: An existing MCP client session to use. The caller retains ownership; - closing or resetting this wrapper does not close or replace that session. - request_timeout: Timeout in seconds for MCP requests. - client: A chat client for sampling callbacks. - sampling_approval_callback: Optional gate invoked before each server-initiated - ``sampling/createMessage`` request is forwarded to ``client``. It receives the - raw ``CreateMessageRequestParams`` and may be synchronous or asynchronous; - returning a truthy value approves the request and a falsy value denies it. When - ``None`` (the default), every sampling request is **denied** because MCP servers - are untrusted third parties (confused-deputy risk). To restore the legacy - auto-approve behavior, pass ``lambda params: True`` as an explicit, conscious - opt-in. - sampling_max_tokens: Upper bound applied to the server-requested ``maxTokens`` for an - approved sampling request. The effective value is ``min(requested, cap)``. Set to - ``None`` to disable the cap. Defaults to ``_DEFAULT_SAMPLING_MAX_TOKENS``. - sampling_max_requests: Maximum number of sampling requests allowed per session - connection; further requests are rejected. The counter resets on reconnect. Set - to ``None`` to disable the limit. Defaults to ``_DEFAULT_SAMPLING_MAX_REQUESTS``. - additional_properties: Additional properties for the tool. - task_options: Options controlling how long-running MCP tasks are driven for - tools that advertise ``execution.taskSupport == "required"``. When ``None``, - the defaults from :class:`MCPTaskOptions` are used. - additional_tool_argument_names: Extra argument names to forward to the MCP server - in addition to each tool's declared parameters. A ``Sequence[str]`` applies to - every tool; a ``Mapping[str, Sequence[str]]`` is keyed by remote tool name with - ``"*"`` as a global key. See the transport subclasses for full details. - use_progressive_disclosure: When ``True``, expose discovery and loader tools plus - ``always_load`` tools initially, and let the model load and unload other allowed MCP tools on demand. - always_load: MCP tool names to keep visible from the start when progressive disclosure - is enabled. Names use the same safe matching rules as ``allowed_tools``; unmatched - entries are ignored. - max_host_payload_size_bytes: Maximum encoded size of the complete MCP result retained - for Host transports. Oversized payloads are omitted from the Host channel while - the parsed model result is preserved. Set to ``None`` to disable the limit. - tool_result_content: How to choose model-visible text when both ``content`` and - ``structuredContent`` are present. See :data:`MCPToolResultContentMode`. - Ignored when ``parse_tool_results`` is set. Default ``structured_first``. + Do not use this method directly. Use MCPStreamableHTTPTool or MCPStdioTool. """ + if task_options is not None: + warnings.warn( + "`task_options` is deprecated and ignored because the MCP Python SDK does not expose the 2026 " + "Tasks extension runtime.", + DeprecationWarning, + stacklevel=2, + ) if use_progressive_disclosure and not load_tools: raise ValueError("use_progressive_disclosure=True requires load_tools=True.") if use_progressive_disclosure: @@ -1096,10 +1161,6 @@ def __init__( self.load_prompts_flag = load_prompts self.parse_prompt_results = parse_prompt_results self.max_host_payload_size_bytes = max_host_payload_size_bytes - # Defer constructing the default MCPTaskOptions so the experimental warning - # only fires when LRO is actually engaged (lazy-resolved by _effective_task_options). - self._task_options_explicit: MCPTaskOptions | None = task_options - self._task_options_default: MCPTaskOptions | None = None self._exit_stack = AsyncExitStack() self._lifecycle_lock = asyncio.Lock() self._lifecycle_request_lock = asyncio.Lock() @@ -1108,21 +1169,35 @@ def __init__( asyncio.Queue[tuple[str, bool, bool, bool, asyncio.Future[None], asyncio.Future[bool]]] | None ) = None self._lifecycle_owner_task: asyncio.Task[None] | None = None - self.session = session - self._owns_session = session is None + + if mcp_client is not None and session is not None: + raise ValueError("`mcp_client` and `session` are mutually exclusive. If possible, prefer `mcp_client`.") + if mcp_client is not None: + self._connection = _ClientMCPConnection(mcp_client, is_framework_owned=False) + elif session is not None: + self._connection = _SessionMCPConnection(session) + else: + self._connection = None + self.request_timeout = request_timeout self.client = client self.sampling_approval_callback = sampling_approval_callback self.sampling_max_tokens = sampling_max_tokens self.sampling_max_requests = sampling_max_requests self._sampling_deprecation_warned = False - if ( + wrapper_sampling_configured = ( client is not None or sampling_approval_callback is not None or sampling_max_tokens != _DEFAULT_SAMPLING_MAX_TOKENS or sampling_max_requests != _DEFAULT_SAMPLING_MAX_REQUESTS - ): + ) + if wrapper_sampling_configured: self._warn_sampling_deprecated(stacklevel=4) + if mcp_client is not None or session is not None: + logger.warning( + "MCPTool sampling options are ignored for a caller-owned connection; " + "configure sampling policy on the supplied Client or ClientSession." + ) self._sampling_request_count = 0 self._functions: list[FunctionTool] = [] self._function_load_callback: _MCPFunctionLoadCallback | None = None @@ -1132,7 +1207,6 @@ def __init__( self._progressive_loader_functions: list[FunctionTool] | None = None self._progressive_loaded_tool_names: set[str] = set() self._tool_call_meta_by_name: dict[str, dict[str, Any]] = {} - self._tool_task_support_by_name: dict[str, str] = {} self._tool_param_names_by_name: dict[str, set[str]] = {} self._global_extra_arg_names, self._tool_extra_arg_names = _normalize_additional_tool_argument_names( additional_tool_argument_names @@ -1146,10 +1220,37 @@ def __init__( self._supports_logging: bool | None = None self._ping_available: bool = True self._pending_reload_tasks: set[asyncio.Task[None]] = set() + self._capability_list_subscription_task: asyncio.Task[None] | None = None def __str__(self) -> str: return f"MCPTool(name={self.name}, description={self.description})" + @property + def session(self) -> ClientSession | None: + """Return the deprecated caller-supplied low-level session. + + .. deprecated:: + Use a high-level ``mcp.Client`` via ``mcp_client=``. + """ + warnings.warn(_MCP_SESSION_DEPRECATION_MESSAGE, DeprecationWarning, stacklevel=2) + return self._connection.session if self._connection is not None else None + + @session.setter + def session(self, value: ClientSession | None) -> None: + """Replace the deprecated caller-owned low-level session compatibility path. + + .. deprecated:: + Use a high-level ``mcp.Client`` via ``mcp_client=``. + """ + connection = self._connection + if connection is not None and connection.client is not None: + raise ValueError( + "Cannot assign `MCPTool.session` while the tool uses a high-level MCP Client. " + "Create a separate tool for the deprecated ClientSession compatibility path." + ) + warnings.warn(_MCP_SESSION_DEPRECATION_MESSAGE, DeprecationWarning, stacklevel=2) + self._connection = _SessionMCPConnection(value) if value is not None else None + def _mcp_base_span_attributes(self) -> dict[str, Any]: """Return base MCP span attributes shared across all operations. @@ -1175,7 +1276,7 @@ def _parse_prompt_result_from_mcp( { "type": "image" if isinstance(content, types.ImageContent) else "audio", "data": content.data, - "mimeType": content.mimeType, + "mimeType": content.mime_type, }, default=str, ) @@ -1190,11 +1291,13 @@ def _parse_prompt_result_from_mcp( { "type": "blob", "data": content.resource.blob, - "mimeType": content.resource.mimeType, + "mimeType": content.resource.mime_type, }, default=str, ) ) + elif isinstance(content, types.ResourceLink): + parts.append(json.dumps(content.model_dump(by_alias=True, exclude_none=True), default=str)) else: parts.append(str(content)) if not parts: @@ -1253,7 +1356,7 @@ def _parse_tool_result_from_mcp( result.append( Content.from_data( data=decoded, - media_type=item.mimeType, + media_type=item.mime_type, **additional_kwargs, ) ) @@ -1261,7 +1364,7 @@ def _parse_tool_result_from_mcp( result.append( Content.from_uri( uri=str(item.uri), - media_type=item.mimeType, + media_type=item.mime_type, **additional_kwargs, ) ) @@ -1271,7 +1374,7 @@ def _parse_tool_result_from_mcp( result.append(Content.from_text(item.resource.text, **additional_kwargs)) case types.BlobResourceContents(): blob = item.resource.blob - mime = item.resource.mimeType or "application/octet-stream" + mime = item.resource.mime_type or "application/octet-stream" if not blob.startswith("data:"): blob = f"data:{mime};base64,{blob}" result.append( @@ -1285,9 +1388,9 @@ def _parse_tool_result_from_mcp( result.append(Content.from_text(str(item), **additional_kwargs)) structured_block: Content | None = None - if mcp_type.structuredContent is not None: + if mcp_type.structured_content is not None: structured_block = Content.from_text( - json.dumps(mcp_type.structuredContent, default=str), **additional_kwargs + json.dumps(mcp_type.structured_content, default=str), **additional_kwargs ) # Select model-visible content per explicit policy (#7866). Host payload still @@ -1348,7 +1451,7 @@ def _parse_content_from_mcp( return_types.append( Content.from_data( data=data_bytes, - media_type=mcp_type.mimeType, + media_type=mcp_type.mime_type, raw_representation=mcp_type, ) ) @@ -1356,7 +1459,7 @@ def _parse_content_from_mcp( return_types.append( Content.from_uri( uri=str(mcp_type.uri), - media_type=mcp_type.mimeType or "application/json", + media_type=mcp_type.mime_type or "application/json", raw_representation=mcp_type, ) ) @@ -1372,11 +1475,11 @@ def _parse_content_from_mcp( case types.ToolResultContent(): return_types.append( Content.from_function_result( - call_id=mcp_type.toolUseId, + call_id=mcp_type.tool_use_id, result=self._parse_content_from_mcp(mcp_type.content) if mcp_type.content - else mcp_type.structuredContent, - exception=str(Exception()) if mcp_type.isError else None, + else mcp_type.structured_content, + exception=str(Exception()) if mcp_type.is_error else None, raw_representation=mcp_type, ) ) @@ -1396,7 +1499,7 @@ def _parse_content_from_mcp( return_types.append( Content.from_uri( uri=mcp_type.resource.blob, - media_type=mcp_type.resource.mimeType, + media_type=mcp_type.resource.mime_type, raw_representation=mcp_type, additional_properties=( mcp_type.annotations.model_dump() if mcp_type.annotations else None @@ -1427,20 +1530,20 @@ def _prepare_content_for_mcp( ) if content.type == "data": if content.media_type and content.media_type.startswith("image/"): - return types.ImageContent(type="image", data=content.uri, mimeType=content.media_type) # type: ignore[attr-defined] + return types.ImageContent(type="image", data=content.uri, mime_type=content.media_type) # type: ignore[attr-defined] if content.media_type and content.media_type.startswith("audio/"): - return types.AudioContent(type="audio", data=content.uri, mimeType=content.media_type) # type: ignore[attr-defined] + return types.AudioContent(type="audio", data=content.uri, mime_type=content.media_type) # type: ignore[attr-defined] if content.media_type and content.media_type.startswith("application/"): return types.EmbeddedResource( type="resource", resource=types.BlobResourceContents( blob=content.uri, # type: ignore[attr-defined] - mimeType=content.media_type, + mime_type=content.media_type, uri=( content.additional_properties.get("uri", "af://binary") if content.additional_properties else "af://binary" - ), # type: ignore[arg-type] + ), ), ) return None @@ -1451,7 +1554,7 @@ def _prepare_content_for_mcp( return types.ResourceLink( type="resource_link", uri=content.uri, # type: ignore[arg-type,attr-defined] - mimeType=content.media_type, + mime_type=content.media_type, name=resource_name, ) return None @@ -1683,6 +1786,172 @@ def _list_progressive_mcp_tools(self, ctx: FunctionInvocationContext) -> list[di }) return tools + async def _listen_capability_list_changes(self, mcp_client: Client) -> None: + """Start one recovering tool/prompt catalog subscription for the active Client.""" + try: + from tenacity import AsyncRetrying, before_sleep_log, retry_if_exception, wait_exponential + except ModuleNotFoundError as exc: + raise ModuleNotFoundError( + "MCP subscription recovery requires `tenacity`. Please install `tenacity`." + ) from exc + + from mcp.client.subscriptions import ( + ListenNotSupportedError, + PromptsListChanged, + SubscriptionLost, + ToolsListChanged, + ) + + existing_task = self._capability_list_subscription_task + if existing_task is not None: + if not existing_task.done(): + return + self._capability_list_subscription_task = None + + capabilities = self._server_capabilities + if capabilities is None: + return + + tools_changed = self.load_tools_flag and bool(capabilities.tools and capabilities.tools.list_changed) + prompts_changed = self.load_prompts_flag and bool(capabilities.prompts and capabilities.prompts.list_changed) + + if not tools_changed and not prompts_changed: + return + + # v2 introduces `mcp_client.listen`, but messages are teed via the message_handler passed in + # during Client construction, so framework-owned Clients can fall back to legacy notifications. + initial_context = mcp_client.listen(tools_list_changed=tools_changed, prompts_list_changed=prompts_changed) + try: + initial_subscription = await initial_context.__aenter__() + except ListenNotSupportedError: + connection = self._connection + if connection is not None and connection.client is mcp_client and not connection.is_framework_owned: + logger.warning( + "Automatic legacy catalog refresh is unavailable for a caller-owned Client; " + "configure legacy notification handling when constructing the Client." + ) + else: + logger.debug("Listen not supported, falling back to legacy behaviour.") + return + + async def refresh_catalogs() -> None: + reloads: list[Coroutine[Any, Any, None]] = [] + if tools_changed: + reloads.append(self.load_tools()) + if prompts_changed: + reloads.append(self.load_prompts()) + for result in await asyncio.gather(*reloads, return_exceptions=True): + if isinstance(result, BaseException): + logger.warning("Failed to refresh MCP catalog after subscription loss: %s", result) + + def connection_is_current() -> bool: + connection = self._connection + return connection is not None and connection.client is mcp_client + + class _SubscriptionRestart(Exception): + """Signal that the active subscription should be refreshed and reopened.""" + + async def consume_subscription(listen_context: Any, subscription: Any) -> None: + try: + try: + async for event in subscription: + if not connection_is_current(): + return + match event: + case ToolsListChanged(): + self._schedule_reload(self.load_tools()) + case PromptsListChanged(): + self._schedule_reload(self.load_prompts()) + case _: + logger.debug("Unhandled event: %s", event) + except asyncio.CancelledError: + raise + except SubscriptionLost as exc: + if not connection_is_current(): + return + logger.warning("MCP catalog subscription was lost; refreshing and reopening it.") + raise _SubscriptionRestart from exc + except Exception as exc: + if not connection_is_current(): + return + logger.warning("MCP catalog subscription failed; refreshing and reopening it.", exc_info=True) + raise _SubscriptionRestart from exc + else: + if not connection_is_current(): + return + logger.debug("MCP catalog subscription ended; refreshing and reopening it.") + raise _SubscriptionRestart + finally: + await listen_context.__aexit__(None, None, None) + + async def consume_with_recovery() -> None: + pending_subscription: tuple[Any, Any] | None = (initial_context, initial_subscription) + current_task = asyncio.current_task() + + async def open_subscription() -> tuple[Any, Any] | None: + nonlocal pending_subscription + if pending_subscription is not None: + opened = pending_subscription + pending_subscription = None + return opened + if not connection_is_current(): + return None + listen_context = mcp_client.listen( + tools_list_changed=tools_changed, + prompts_list_changed=prompts_changed, + ) + subscription = await listen_context.__aenter__() + return listen_context, subscription + + try: + retrying = AsyncRetrying( + wait=wait_exponential( + multiplier=_MCP_SUBSCRIPTION_RETRY_INITIAL_DELAY, + max=_MCP_SUBSCRIPTION_RETRY_MAX_DELAY, + ), + retry=retry_if_exception( + lambda exc: isinstance(exc, Exception) and not isinstance(exc, ListenNotSupportedError) + ), + before_sleep=before_sleep_log(logger, logging.WARNING), + reraise=True, + ) + try: + async for attempt in retrying: + with attempt: + opened = await open_subscription() + if opened is None: + return + try: + await consume_subscription(*opened) + except _SubscriptionRestart: + if not connection_is_current(): + return + await refresh_catalogs() + raise + except ListenNotSupportedError: + logger.debug("Listen not supported; falling back to legacy behaviour.") + finally: + if self._capability_list_subscription_task is current_task: + self._capability_list_subscription_task = None + + self._capability_list_subscription_task = asyncio.create_task( + consume_with_recovery(), + name=f"mcp-capability-list-subscription:{self.name}", + ) + + async def _cancel_capability_list_subscription(self) -> None: + """Cancel the capability list subscription task, if it exists.""" + task = self._capability_list_subscription_task + self._capability_list_subscription_task = None + + if task is None: + return + + if not task.done(): + task.cancel() + + await asyncio.gather(task, return_exceptions=True) + async def _load_progressive_mcp_tool(self, ctx: FunctionInvocationContext, tool: str | Sequence[str]) -> str: """Load an allowed MCP tool into the live function-calling tool list.""" if ctx.tools is None: @@ -1780,10 +2049,14 @@ async def _ensure_lifecycle_owner(self) -> None: return self._lifecycle_queue = asyncio.Queue() - self._lifecycle_owner_task = asyncio.create_task( - self._run_lifecycle_owner(), - name=f"mcp-lifecycle:{self.name}", - ) + token = _mcp_call_headers.set(None) + try: + self._lifecycle_owner_task = asyncio.create_task( + self._run_lifecycle_owner(), + name=f"mcp-lifecycle:{self.name}", + ) + finally: + _mcp_call_headers.reset(token) async def _run_lifecycle_owner(self) -> None: queue = self._lifecycle_queue @@ -1801,14 +2074,14 @@ async def _run_lifecycle_owner(self) -> None: try: if action == "connect": - previous_session = self.session + previous_connection = self._connection previously_connected = self.is_connected await self._connect_on_owner( reset=reset, load_configured=load_configured, reset_discovery=reset_discovery, ) - new_connection = not previously_connected or self.session is not previous_session + new_connection = not previously_connected or self._connection is not previous_connection accepted = False try: if not future.done(): @@ -1981,7 +2254,6 @@ def _reset_session_discovery_state(self) -> None: if not isinstance((function.additional_properties or {}).get(_MCP_REMOTE_NAME_KEY), str) ] self._tool_call_meta_by_name.clear() - self._tool_task_support_by_name.clear() self._tool_param_names_by_name.clear() self._progressive_loaded_tool_names.clear() @@ -2043,51 +2315,25 @@ async def _connect_on_owner( Raises: ToolException: If connection or session initialization fails. """ + log_level = _to_mcp_logging_level(logger.level) if reset: + await self._cancel_capability_list_subscription() if reset_discovery: await self._cancel_pending_reload_tasks() await self._safe_close_exit_stack() - if self._owns_session: - self.session = None + connection = self._connection + if connection is not None and connection.is_framework_owned: + self._connection = None self.is_connected = False self._reset_session_state() if reset_discovery: self._reset_session_discovery_state() self._exit_stack = AsyncExitStack() - if not self.session: - try: - transport = await self._exit_stack.enter_async_context(self.get_mcp_client()) - except (Exception, asyncio.CancelledError) as ex: - # On Python >= 3.11, re-raise genuine task cancellation (task.cancelling() > 0) - # instead of wrapping it in ToolException. On Python < 3.11, task.cancelling() - # is unavailable so MCP-internal CancelledErrors cannot be distinguished from - # caller-driven cancellation; they are wrapped as ToolException in that case. - cancelled, cleanup_error = await self._close_and_check_cancelled(ex) - if cancelled: - raise - command = getattr(self, "command", None) - if command: - error_msg = f"Failed to start MCP server '{command}': {_describe_with_cleanup(ex, cleanup_error)}" - else: - error_msg = f"Failed to connect to MCP server: {_describe_with_cleanup(ex, cleanup_error)}" - # CancelledError is a BaseException (not Exception) on Python >= 3.8, so - # inner_exception=None and ToolException.__init__ won't log exc_info. - if isinstance(ex, asyncio.CancelledError): - _log_mcp_exception( - logging.DEBUG, - ex, - error_msg, - redacted_message="MCP transport startup failed", - sensitive_exc_info=True, - ) - raise _mcp_tool_exception( - error_msg, - inner_exception=ex if isinstance(ex, Exception) else None, - ) from ex + connection = self._connection + if connection is None: try: try: - from mcp import types - from mcp.client.session import ClientSession as runtime_client_session + from mcp import Client, types except ModuleNotFoundError as ex: await self._safe_close_exit_stack() raise _mcp_tool_exception( @@ -2100,24 +2346,29 @@ async def _connect_on_owner( sampling_capabilities = types.SamplingCapability( tools=types.SamplingToolsCapability(), ) - session = await self._exit_stack.enter_async_context( - runtime_client_session( - read_stream=transport[0], - write_stream=transport[1], - read_timeout_seconds=( - timedelta(seconds=self.request_timeout) if self.request_timeout else None - ), + mcp_client = await self._exit_stack.enter_async_context( + Client( + server=self.get_mcp_client(), + read_timeout_seconds=self.request_timeout, message_handler=self.message_handler, logging_callback=self.logging_callback, - sampling_callback=self.sampling_callback, # pyright: ignore[reportDeprecated] + log_level=log_level, sampling_capabilities=sampling_capabilities, + sampling_callback=self.sampling_callback, # pyright: ignore[reportDeprecated] ) ) except (Exception, asyncio.CancelledError) as ex: cancelled, cleanup_error = await self._close_and_check_cancelled(ex) if cancelled: raise - session_error_msg = f"Failed to create MCP session: {_describe_with_cleanup(ex, cleanup_error)}" + described = _describe_with_cleanup(ex, cleanup_error) + command = getattr(self, "command", None) + if command: + args_str = " ".join(getattr(self, "args", [])) + full_command = f"{command} {args_str}".strip() + session_error_msg = f"Failed to create MCP session for server '{full_command}': {described}" + else: + session_error_msg = f"Failed to create MCP session: {described}" if isinstance(ex, asyncio.CancelledError): _log_mcp_exception( logging.DEBUG, @@ -2136,13 +2387,10 @@ async def _connect_on_owner( attributes=self._mcp_base_span_attributes(), capture_unhandled_exceptions=False, ) as init_span: - try: - initialize_result = await session.initialize() - except Exception as init_ex: - set_mcp_span_error(init_span, type(init_ex).__name__, str(init_ex)) - raise - init_span.set_attribute(OtelAttr.MCP_PROTOCOL_VERSION, initialize_result.protocolVersion) - self._set_server_capabilities(getattr(initialize_result, "capabilities", None)) + init_span.set_attribute(OtelAttr.MCP_PROTOCOL_VERSION, mcp_client.protocol_version) + self._set_server_capabilities(mcp_client.server_capabilities) + # initialize_result exists only for legacy negotiation; modern MCP has no ping. + self._ping_available = mcp_client.session.initialize_result is not None except (Exception, asyncio.CancelledError) as ex: cancelled, cleanup_error = await self._close_and_check_cancelled(ex) if cancelled: @@ -2168,36 +2416,43 @@ async def _connect_on_owner( error_msg, inner_exception=ex if isinstance(ex, Exception) else None, ) from ex - self.session = session - self._owns_session = True - else: + self._connection = _ClientMCPConnection(mcp_client, is_framework_owned=True) + elif connection.client is not None: + self._set_server_capabilities(connection.client.server_capabilities) + elif connection.session is not None: + session = connection.session try: - if self.session._request_id == 0: # type: ignore[attr-defined] - # If the session is not initialized, we need to reinitialize it + if session.protocol_version is None: + # Preserve old compatibility behavior for an + # unnegotiated caller-supplied session: initialize it as legacy. with create_mcp_client_span( "initialize", attributes=self._mcp_base_span_attributes(), capture_unhandled_exceptions=False, ) as init_span: try: - initialize_result = await self.session.initialize() + initialize_result = await session.initialize() except Exception as init_ex: set_mcp_span_error(init_span, type(init_ex).__name__, str(init_ex)) raise - init_span.set_attribute(OtelAttr.MCP_PROTOCOL_VERSION, initialize_result.protocolVersion) - self._set_server_capabilities(getattr(initialize_result, "capabilities", None)) - elif self._server_capabilities is None: - self._set_server_capabilities(getattr(self.session, "_server_capabilities", None)) + init_span.set_attribute(OtelAttr.MCP_PROTOCOL_VERSION, initialize_result.protocol_version) + + self._set_server_capabilities(session.server_capabilities) + self._ping_available = session.initialize_result is not None except (Exception, asyncio.CancelledError): await self._close_on_owner() raise + elif connection.client is None: + raise RuntimeError("MCP connection has neither a Client nor a ClientSession.") functions_before_discovery = self._functions.copy() call_meta_before_discovery = self._tool_call_meta_by_name - task_support_before_discovery = self._tool_task_support_by_name param_names_before_discovery = self._tool_param_names_by_name try: - logger.debug("Connected to MCP server: %s", self.session) + connection = self._require_connection() + logger.debug("Connected to MCP server: %s", connection.client or connection.session) self.is_connected = True + if connection.client is not None: + await self._listen_capability_list_changes(connection.client) if load_configured and self.load_tools_flag: if self._supports_tools: await self.load_tools() @@ -2207,12 +2462,10 @@ async def _connect_on_owner( await self.load_prompts() self._prompts_loaded = True - if logger.level != logging.NOTSET and self._supports_logging is not False: + if log_level is not None and self._supports_logging is not False: + connection = self._require_connection() try: - level_name = cast( - Any, next(level for level, value in LOG_LEVEL_MAPPING.items() if value == logger.level) - ) - await self.session.set_logging_level(level_name) + await connection.set_logging_level(log_level) except Exception as exc: _log_mcp_exception( logging.WARNING, @@ -2228,7 +2481,6 @@ async def _connect_on_owner( finally: self._functions[:] = functions_before_discovery self._tool_call_meta_by_name = call_meta_before_discovery - self._tool_task_support_by_name = task_support_before_discovery self._tool_param_names_by_name = param_names_before_discovery raise @@ -2304,7 +2556,7 @@ def _warn_sampling_deprecated(self, *, stacklevel: int) -> None: @deprecated(_MCP_SAMPLING_DEPRECATION_MESSAGE, category=None) async def sampling_callback( self, - context: RequestContext[ClientSession, Any], + context: ClientRequestContext, params: types.CreateMessageRequestParams, ) -> types.CreateMessageResult | types.CreateMessageResultWithTools | types.ErrorData: """Callback function for sampling. @@ -2354,7 +2606,7 @@ async def sampling_callback( "MCP server '%s' sent a sampling/createMessage request (%d message(s), maxTokens=%s).", self.name, len(params.messages), - params.maxTokens, + params.max_tokens, ) if self.sampling_max_requests is not None: @@ -2386,25 +2638,25 @@ async def sampling_callback( messages.append(self._parse_message_from_mcp(msg)) options: ChatOptions[None] = {} - if params.systemPrompt is not None: - options["instructions"] = params.systemPrompt + if params.system_prompt is not None: + options["instructions"] = params.system_prompt if params.tools is not None: options["tools"] = [ FunctionTool( name=tool.name, description=tool.description or "", - input_model=tool.inputSchema, + input_model=tool.input_schema, ) for tool in params.tools ] - if params.toolChoice is not None and params.toolChoice.mode is not None: - options["tool_choice"] = params.toolChoice.mode + if params.tool_choice is not None and params.tool_choice.mode is not None: + options["tool_choice"] = params.tool_choice.mode if params.temperature is not None: options["temperature"] = params.temperature - options["max_tokens"] = self._capped_sampling_max_tokens(params.maxTokens) - if params.stopSequences is not None: - options["stop"] = params.stopSequences + options["max_tokens"] = self._capped_sampling_max_tokens(params.max_tokens) + if params.stop_sequences is not None: + options["stop"] = params.stop_sequences try: chat_client: Any = self.client @@ -2442,7 +2694,7 @@ async def sampling_callback( role="assistant", content=tool_use_contents, model=response.model or "unknown", - stopReason="toolUse", + stop_reason="toolUse", ) # grab the first content that is of type TextContent or ImageContent @@ -2477,23 +2729,25 @@ async def logging_callback(self, params: types.LoggingMessageNotificationParams) async def message_handler( self, - message: (RequestResponder[types.ServerRequest, types.ClientResult] | types.ServerNotification | Exception), + message: IncomingMessage, ) -> None: - """Handle messages from the MCP server. + """Handle messages from the MCP server ("legacy"). Kept for backward compatibility. By default this function will handle exceptions on the server by logging them, and it will trigger a reload of the tools and prompts when the list changed notification is received. Note: - If you want to extend this behavior, you can subclass MCPTool and override + If you want to extend the legacy behavior, you can subclass MCPTool and override this function. If you want to keep the default behavior, make sure to call ``super().message_handler(message)``. + Alternatively for newer server versions, please see the `_listen_capability_list_changes` method. + Args: message: The message from the MCP server (request responder, notification, or exception). """ - from mcp import types + from mcp.shared.subscriptions import SUBSCRIPTION_ID_META_KEY if isinstance(message, Exception): _log_mcp_exception( @@ -2505,14 +2759,22 @@ async def message_handler( sensitive_exc_info=message, ) return - if isinstance(message, types.ServerNotification): - match message.root.method: - case "notifications/tools/list_changed": - self._schedule_reload(self.load_tools()) - case "notifications/prompts/list_changed": - self._schedule_reload(self.load_prompts()) - case _: - logger.debug("Unhandled notification: %s", message.root.method) + + params = getattr(message, "params", None) + meta = getattr(params, "meta", None) + + # MCP v2 uses subscription directly with Client.listen and attaches the subscription ID to the message meta. + # To avoid double handling we skip at the message_handler level. + if isinstance(meta, Mapping) and SUBSCRIPTION_ID_META_KEY in meta: + return + + match message.method: + case "notifications/tools/list_changed": + self._schedule_reload(self.load_tools()) + case "notifications/prompts/list_changed": + self._schedule_reload(self.load_prompts()) + case _: + logger.debug("Unhandled notification: %s", message.method) def _schedule_reload(self, coro: Coroutine[Any, Any, None]) -> None: """Schedule a reload coroutine as a background task. @@ -2634,7 +2896,7 @@ async def _load_prompts_locked(self) -> None: capture_unhandled_exceptions=False, ) as list_span: try: - prompt_list = await self.session.list_prompts(params=params) # type: ignore[union-attr] + prompt_list = await self._require_connection().list_prompts_page(params) except Exception as list_ex: set_mcp_span_error(list_span, type(list_ex).__name__, str(list_ex)) raise @@ -2711,9 +2973,9 @@ async def _load_prompts_locked(self) -> None: new_functions.append(func) # Check if there are more pages - if not prompt_list.nextCursor: + if not prompt_list.next_cursor: break - params = types.PaginatedRequestParams(cursor=prompt_list.nextCursor) + params = types.PaginatedRequestParams(cursor=prompt_list.next_cursor) current_functions = [func for func in self._functions if not _is_mcp_prompt_function(func)] current_functions.extend(prompt_functions) @@ -2761,7 +3023,6 @@ async def _load_tools_locked(self) -> None: if isinstance(remote_name, str): existing_remote_by_local[func.name] = remote_name tool_call_meta_by_name: dict[str, dict[str, Any]] = {} - tool_task_support_by_name: dict[str, str] = {} tool_param_names_by_name: dict[str, set[str]] = {} tool_annotations_by_name: dict[str, Any] = {} @@ -2781,7 +3042,7 @@ async def _load_tools_locked(self) -> None: capture_unhandled_exceptions=False, ) as list_span: try: - tool_list = await self.session.list_tools(params=params) # type: ignore[union-attr] + tool_list = await self._require_connection().list_tools_page(params) except Exception as list_ex: set_mcp_span_error(list_span, type(list_ex).__name__, str(list_ex)) raise @@ -2813,27 +3074,31 @@ async def _load_tools_locked(self) -> None: raise _mcp_tool_execution_exception("Failed to load tools.") for tool in tool_list.tools: + task_support = getattr(getattr(tool, "execution", None), "task_support", None) + if task_support in ["required", "optional"]: + logger.warning( + "Skipping MCP tool %r because it (might) require the Tasks extension, " + "which MCP Python SDK 2.2 does not implement.", + tool.name, + ) + continue + tool_annotations_by_name[tool.name] = tool.annotations if tool.meta is not None: tool_call_meta_by_name[tool.name] = _validate_mcp_meta(tool.meta) or {} - task_support = getattr(getattr(tool, "execution", None), "taskSupport", None) - if task_support is not None: - tool_task_support_by_name[tool.name] = task_support - # Normalize inputSchema: ensure "properties" exists for object schemas. # Some MCP servers (e.g. zero-argument tools) omit "properties", # which causes OpenAI API to reject the schema with a 400 error. # Guard against non-conforming MCP servers that send inputSchema=None # despite the MCP spec typing it as dict[str, Any]. - input_schema = dict(tool.inputSchema or {}) + input_schema = dict(tool.input_schema or {}) if input_schema.get("type") == "object" and "properties" not in input_schema: input_schema["properties"] = {} # Register declared param names before the existing-tool skip below so that # reloads (e.g. notifications/tools/list_changed) preserve the allowlist for - # tools that are already loaded, consistent with tool_call_meta_by_name and - # tool_task_support_by_name above. + # tools that are already loaded, consistent with tool_call_meta_by_name above. schema_properties = input_schema.get("properties") tool_param_names_by_name[tool.name] = ( set(cast(dict[str, Any], schema_properties)) if isinstance(schema_properties, dict) else set() @@ -2886,9 +3151,9 @@ async def _load_tools_locked(self) -> None: new_functions.append(func) # Check if there are more pages - if not tool_list.nextCursor: + if not tool_list.next_cursor: break - params = types.PaginatedRequestParams(cursor=tool_list.nextCursor) + params = types.PaginatedRequestParams(cursor=tool_list.next_cursor) current_functions = [ func @@ -2910,7 +3175,6 @@ async def _load_tools_locked(self) -> None: self._function_load_callback(function, tool_annotations_by_name[remote_name]) self._functions[:] = current_functions self._tool_call_meta_by_name = tool_call_meta_by_name - self._tool_task_support_by_name = tool_task_support_by_name self._tool_param_names_by_name = tool_param_names_by_name self._progressive_loaded_tool_names.difference_update(existing_tools.keys() - reused_tool_names) @@ -2924,12 +3188,13 @@ async def _cancel_pending_reload_tasks(self) -> None: await asyncio.gather(*tasks, return_exceptions=True) async def _close_on_owner(self) -> None: + await self._cancel_capability_list_subscription() await self._cancel_pending_reload_tasks() - await self._safe_close_exit_stack() self._exit_stack = AsyncExitStack() - if self._owns_session: - self.session = None + connection = self._connection + if connection is not None and connection.is_framework_owned: + self._connection = None self.is_connected = False self._reset_session_state() @@ -2945,6 +3210,12 @@ async def close(self) -> None: async with self._lifecycle_request_lock: await self._run_on_lifecycle_owner("close") + def _require_connection(self) -> _MCPConnection: + """Return the active normalized MCP connection.""" + if self._connection is None: + raise RuntimeError("MCPTool is not connected.") + return self._connection + @abstractmethod def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: """Get an MCP client. @@ -2963,14 +3234,14 @@ async def _ensure_connected(self) -> None: Raises: ToolExecutionException: If reconnection fails. """ - from mcp.shared.exceptions import McpError + from mcp import MCPError if not self._ping_available: return try: - await self.session.send_ping() # type: ignore[union-attr] - except McpError as mcp_exc: + await self._require_connection().check_connection() + except MCPError as mcp_exc: if mcp_exc.error.code == -32601: self._ping_available = False logger.debug("Skipping future MCP pings because the server does not support ping.") @@ -2993,29 +3264,6 @@ async def _ensure_connected(self) -> None: inner_exception=ex, ) from ex - def _effective_task_options(self) -> MCPTaskOptions: - """Return the effective MCPTaskOptions, lazily constructing defaults on first use. - - Defers the implicit ``MCPTaskOptions()`` so the experimental warning only - fires when LRO is actually engaged (server advertises ``taskSupport=required``). - """ - explicit = self._task_options_explicit - if explicit is not None: - return explicit - if self._task_options_default is None: - self._task_options_default = MCPTaskOptions() - return self._task_options_default - - @property - def task_options(self) -> MCPTaskOptions: - """The effective MCPTaskOptions for this tool (lazy defaults).""" - return self._effective_task_options() - - @task_options.setter - def task_options(self, value: MCPTaskOptions | None) -> None: - self._task_options_explicit = value - self._task_options_default = None - async def call_tool(self, tool_name: str, **kwargs: Any) -> str | list[Content]: """Call a tool with the given arguments. @@ -3054,12 +3302,6 @@ async def _call_tool( raise _mcp_tool_execution_exception( "Tools are not loaded for this server, please set load_tools=True in the constructor." ) - - # Tools advertising taskSupport == "required" cannot complete via plain tools/call; - # route through the long-running task lifecycle transparently. - if self._tool_task_support_by_name.get(tool_name) == "required": - return await self.call_tool_as_task(tool_name, **kwargs) - filtered_kwargs, meta = self._prepare_call_kwargs(tool_name, kwargs) parser = self.parse_tool_results or self._parse_tool_result_from_mcp @@ -3088,20 +3330,24 @@ async def _call_tool_with_retries( self, tool_name: str, filtered_kwargs: dict[str, Any], - meta: dict[str, Any] | None, + meta: types.RequestParamsMeta | None, parser: Callable[..., str | list[Content]], span: otel_trace.Span, ) -> str | list[Content]: """Execute the MCP tools/call RPC with retry logic.""" from anyio import ClosedResourceError - from mcp.shared.exceptions import McpError + from mcp import MCPError for attempt in range(2): span_error_recorded = False try: - result = await self.session.call_tool(tool_name, arguments=filtered_kwargs, meta=meta) # type: ignore + result = await self._require_connection().call_tool( + tool_name, + filtered_kwargs, + meta=meta, + ) _capture_mcp_tool_result(result) - if result.isError: + if result.is_error: parsed = parser(result) text = ( "\n".join(c.text for c in parsed if c.type == "text" and c.text) @@ -3118,13 +3364,13 @@ async def _call_tool_with_retries( if span.is_recording() and not span_error_recorded: set_mcp_span_error(span, type(tool_ex).__name__, str(tool_ex)) raise - except (ClosedResourceError, McpError) as call_ex: + except (ClosedResourceError, MCPError) as call_ex: is_session_terminated = ( - isinstance(call_ex, McpError) and "session terminated" in call_ex.error.message.lower() + isinstance(call_ex, MCPError) and "session terminated" in call_ex.error.message.lower() ) is_connection_lost = isinstance(call_ex, ClosedResourceError) or is_session_terminated if not is_connection_lost: - error_message = call_ex.error.message if isinstance(call_ex, McpError) else str(call_ex) + error_message = call_ex.error.message if isinstance(call_ex, MCPError) else str(call_ex) if span.is_recording(): set_mcp_span_error(span, type(call_ex).__name__, error_message) raise _mcp_tool_execution_exception(error_message, inner_exception=call_ex) from call_ex @@ -3172,7 +3418,7 @@ def _resolved_extra_args(self, tool_name: str) -> set[str]: def _prepare_call_kwargs( self, tool_name: str, kwargs: dict[str, Any] - ) -> tuple[dict[str, Any], dict[str, Any] | None]: + ) -> tuple[dict[str, Any], types.RequestParamsMeta | None]: """Filter kwargs down to the tool's arguments and build the merged MCP request metadata.""" user_meta = _validate_mcp_meta(kwargs.get("_meta")) @@ -3206,445 +3452,13 @@ def _prepare_call_kwargs( } # Some MCP proxies require their tools/list metadata to be echoed on tools/call. - request_meta = dict(user_meta) if user_meta is not None else None + request_meta = user_meta.copy() if user_meta is not None else None request_meta = _inject_otel_into_mcp_meta(request_meta, overwrite=True) tool_meta = _validate_mcp_meta(self._tool_call_meta_by_name.get(tool_name)) if tool_meta is not None: - request_meta = {**(request_meta or {}), **tool_meta} + request_meta = cast("types.RequestParamsMeta", {**(request_meta or {}), **tool_meta}) return filtered_kwargs, request_meta - async def call_tool_as_task(self, tool_name: str, **kwargs: Any) -> str | list[Content]: - """Call an MCP tool via the long-running task lifecycle (SEP-2663). - - Issues an augmented ``tools/call`` with ``params.task`` set from - ``self.task_options``, then polls ``tasks/get`` until the server reports a - terminal status. On ``completed`` the payload is fetched via ``tasks/result``, - validated as a ``CallToolResult`` and parsed identically to :meth:`call_tool`. - - Local cancellation triggers a best-effort ``tasks/cancel`` (controlled by - :attr:`MCPTaskOptions.cancel_remote_task_on_local_cancellation`) before - ``asyncio.CancelledError`` is re-raised. - - Args: - tool_name: The remote MCP tool name. - - Keyword Args: - kwargs: Arguments forwarded to the tool. See :meth:`call_tool` for the - framework kwargs that are filtered out. - - Returns: - A list of Content items (or a string when a custom ``parse_tool_results`` - callback is configured). - """ - return await self._call_tool_as_task(tool_name, kwargs) - - async def _call_tool_as_task( - self, - tool_name: str, - kwargs: dict[str, Any], - ) -> str | list[Content]: - from anyio import ClosedResourceError - from mcp.shared.exceptions import McpError - - if not self.load_tools_flag: - raise _mcp_tool_execution_exception( - "Tools are not loaded for this server, please set load_tools=True in the constructor." - ) - - filtered_kwargs, meta = self._prepare_call_kwargs(tool_name, kwargs) - parser = self.parse_tool_results or self._parse_tool_result_from_mcp - - # Submit the task: issue augmented tools/call. Do NOT retry on connection loss here: - # the server may have accepted the request and created a task before the - # response was lost, so retrying could start the long-running operation twice. - # Reconnect-and-retry is only safe after the task_id is known. - try: - task_id, fallback_result = await self._call_tool_as_task_create(tool_name, filtered_kwargs, meta) - except (ClosedResourceError, McpError) as ex: - if not self._is_connection_lost(ex): - error_message = ex.error.message if isinstance(ex, McpError) else str(ex) - raise _mcp_tool_execution_exception(error_message, inner_exception=ex) from ex - raise _mcp_tool_execution_exception( - f"Failed to call tool '{tool_name}' - connection lost; task state unknown.", - inner_exception=ex, - ) from ex - except ToolExecutionException: - raise - except Exception as ex: - raise _mcp_tool_execution_exception(f"Failed to call tool '{tool_name}'.", inner_exception=ex) from ex - - # Server returned a CallToolResult (no task created) or fell back to plain tools/call. - if fallback_result is not None: - _capture_mcp_tool_result(fallback_result) - if fallback_result.isError: - parsed = parser(fallback_result) - text = ( - "\n".join(c.text for c in parsed if c.type == "text" and c.text) - if isinstance(parsed, list) - else str(parsed) - ) - raise _mcp_tool_execution_exception(text or str(parsed)) - return parser(fallback_result) - - if task_id is None: - raise _mcp_tool_execution_exception( - f"MCP server did not return a task_id or fallback result for '{tool_name}'." - ) - - # Track to completion: poll until terminal, then fetch payload. Never re-issue - # tools/call past this point; reconnect-and-retry only against the same task_id. - opts = self._effective_task_options() - max_wait_s = opts.max_task_wait.total_seconds() if opts.max_task_wait is not None else None - - async def _await_task_completion() -> str | list[Content]: - terminal = await self._poll_task_until_terminal(task_id) - return await self._handle_terminal_task( - tool_name, - task_id, - terminal, - parser, - ) - - try: - if max_wait_s is not None: - try: - result = await self._await_with_deadline(_await_task_completion(), max_wait_s) - return cast("str | list[Content]", result) - except _MCPDeadlineExpired as ex: - self._spawn_best_effort_cancel(task_id) - raise _mcp_tool_execution_exception( - f"MCP task '{task_id}' exceeded max_task_wait of {max_wait_s}s.", - inner_exception=ex, - ) from ex - else: - return await _await_task_completion() - except asyncio.CancelledError: - if opts.cancel_remote_task_on_local_cancellation: - self._spawn_best_effort_cancel(task_id) - raise - except _MCPTaskAbandoned: - # Pre-terminal abandonment (hard poll error, malformed get, second - # disconnect, reconnect failure): cancel + re-raise as plain - # ToolExecutionException to the function-calling loop. - self._spawn_best_effort_cancel(task_id) - raise - # Plain ToolExecutionException from terminal failures (failed/cancelled/ - # input_required, completed+isError, malformed result post-completion) - # propagates without cancel — server is already done. - - async def _call_tool_as_task_create( - self, tool_name: str, arguments: dict[str, Any], meta: dict[str, Any] | None - ) -> tuple[str | None, types.CallToolResult | None]: - """Send the augmented tools/call. - - Returns ``(task_id, None)`` when the server created a task, - ``(None, CallToolResult)`` when it returned a non-task result, falling back - to plain ``tools/call`` if the server rejects the ``task`` field outright. - """ - from mcp import types - from mcp.shared.exceptions import McpError - from pydantic import ValidationError - - opts = self._effective_task_options() - ttl_ms: int | None = None - if opts.default_ttl is not None: - ttl_ms = int(opts.default_ttl.total_seconds() * 1000) - # Always send TaskMetadata to mark the call as task-augmented; ttl may be omitted. - task_metadata = types.TaskMetadata(ttl=ttl_ms) - - request_meta = types.RequestParams.Meta(**meta) if meta else None - params = types.CallToolRequestParams( - name=tool_name, - arguments=arguments, - task=task_metadata, - _meta=request_meta, - ) - request = types.ClientRequest(types.CallToolRequest(params=params)) - - # Use the lenient Result type so we can extract the task_id even when - # the strict CreateTaskResult schema rejects the payload (the MCP Python - # SDK requires Task.ttl, but servers may legitimately omit it). - try: - lenient = await self.session.send_request( # type: ignore[union-attr] - request, - types.Result, - ) - except McpError as ex: - if ex.error.code not in (types.METHOD_NOT_FOUND, types.INVALID_PARAMS): - raise - logger.debug( - "Server rejected augmented tools/call for '%s' (code=%s); falling back.", - tool_name, - ex.error.code, - ) - fallback = await self.session.call_tool(tool_name, arguments=arguments, meta=meta) # type: ignore[union-attr] - return None, fallback - - # Inspect the raw payload: a CreateTaskResult carries `task.taskId`; - # a legacy CallToolResult carries `content` and/or `isError`. - raw: dict[str, Any] = lenient.model_dump(by_alias=True, exclude_none=True) - - task_field = raw.get("task") - if isinstance(task_field, dict): - task_id_val = cast(dict[str, Any], task_field).get("taskId") - if isinstance(task_id_val, str): - return task_id_val, None - - try: - legacy = types.CallToolResult.model_validate(raw) - except ValidationError as ex: - # Augmented call succeeded server-side; re-issuing a plain tools/call - # could double-execute a side-effecting tool. - raise _mcp_tool_execution_exception( - f"MCP server returned an unparseable response to augmented tools/call " - f"for '{tool_name}'; cannot safely retry (server may have started the operation).", - inner_exception=ex, - ) from ex - - return None, legacy - - async def _poll_task_until_terminal(self, task_id: str) -> types.GetTaskResult: - """Poll ``tasks/get`` until the task reaches a terminal status.""" - import httpx - from mcp import types - from mcp.shared.exceptions import McpError - - # SDK raises McpError(code=httpx.REQUEST_TIMEOUT=408) on session read timeout. - transient_codes: frozenset[int] = frozenset({int(httpx.codes.REQUEST_TIMEOUT)}) - - while True: - request = types.ClientRequest(types.GetTaskRequest(params=types.GetTaskRequestParams(taskId=task_id))) - try: - # GetTaskResult.ttl is required-but-Optional in the SDK; coerce below. - lenient = await self._send_with_one_reconnect( - request, types.Result, operation="tasks/get", task_id=task_id - ) - except McpError as ex: - if ex.error.code in transient_codes: - logger.debug("Transient %s on tasks/get for '%s'; will retry.", ex.error.code, task_id) - await asyncio.sleep(_MCP_TASK_MIN_POLL_INTERVAL.total_seconds()) - continue - # Hard server error mid-poll: task may still be running. - raise _MCPTaskAbandoned(ex.error.message, inner_exception=ex) from ex - - try: - snapshot = self._coerce_get_task_result(lenient, task_id) - except ToolExecutionException as ex: - # Malformed tasks/get response; task may still be running. - raise _MCPTaskAbandoned(str(ex), inner_exception=ex) from ex - - if snapshot.status in _MCP_TASK_TERMINAL_STATUSES: - return snapshot - - await asyncio.sleep(self._compute_poll_delay(snapshot.pollInterval).total_seconds()) - - @staticmethod - def _coerce_get_task_result(lenient: types.Result, task_id: str) -> types.GetTaskResult: - """Coerce a lenient Result into GetTaskResult, defaulting ``ttl`` when absent.""" - from mcp import types - - raw = lenient.model_dump(by_alias=True, exclude_none=True) - raw.pop("_meta", None) - raw.setdefault("ttl", None) - try: - return types.GetTaskResult.model_validate(raw) - except Exception as ex: - raise _mcp_tool_execution_exception( - f"MCP server returned a malformed tasks/get response for task '{task_id}'.", - inner_exception=ex, - ) from ex - - @staticmethod - def _compute_poll_delay(server_interval_ms: int | None) -> timedelta: - """Clamp the server-suggested poll interval to ``[min, max]``.""" - if server_interval_ms is None or server_interval_ms <= 0: - return _MCP_TASK_MIN_POLL_INTERVAL - suggested = timedelta(milliseconds=server_interval_ms) - if suggested < _MCP_TASK_MIN_POLL_INTERVAL: - return _MCP_TASK_MIN_POLL_INTERVAL - if suggested > _MCP_TASK_MAX_POLL_INTERVAL: - return _MCP_TASK_MAX_POLL_INTERVAL - return suggested - - async def _handle_terminal_task( - self, - tool_name: str, - task_id: str, - snapshot: types.GetTaskResult, - parser: Callable[[types.CallToolResult], str | list[Content]], - ) -> str | list[Content]: - """Map a terminal task snapshot to either a parsed result or an exception.""" - status = snapshot.status - if status == "completed": - payload = await self._fetch_task_result(task_id) - _capture_mcp_tool_result(payload) - if payload.isError: - parsed = parser(payload) - text = ( - "\n".join(c.text for c in parsed if c.type == "text" and c.text) - if isinstance(parsed, list) - else str(parsed) - ) - raise _mcp_tool_execution_exception(text or str(parsed)) - return parser(payload) - - # Non-completed terminal statuses surface as ToolExecutionException so the - # function-calling loop sees a normal failure for tool_name. - message = snapshot.statusMessage or f"MCP task ended with status '{status}'." - if status == "input_required": - # Spec-non-terminal; treated as terminal here because the framework does - # not implement the interactive input flow. - message = snapshot.statusMessage or "MCP task requires additional input and cannot continue." - raise _mcp_tool_execution_exception(f"Tool '{tool_name}' task {status}: {message}") - - async def _fetch_task_result(self, task_id: str) -> types.CallToolResult: - """Send ``tasks/result`` and reinterpret the open-typed payload as a CallToolResult.""" - from mcp import types - from mcp.shared.exceptions import McpError - from pydantic import ValidationError - - request = types.ClientRequest( - types.GetTaskPayloadRequest(params=types.GetTaskPayloadRequestParams(taskId=task_id)) - ) - # Connection-loss retry only via the helper; no transient-code retry — server - # has already completed the task, so a slow payload fetch is anomalous. - try: - payload = await self._send_with_one_reconnect( - request, types.GetTaskPayloadResult, operation="tasks/result", task_id=task_id - ) - except McpError as ex: - # Server reported completed; a hard fetch error is a plain failure (no cancel). - raise _mcp_tool_execution_exception(ex.error.message, inner_exception=ex) from ex - - # GetTaskPayloadResult carries the tool result via extra fields; reinterpret as CallToolResult. - payload_dict = payload.model_dump(by_alias=True, exclude_none=True) - try: - return types.CallToolResult.model_validate(payload_dict) - except ValidationError as ex: - # Server reported completed; malformed payload is a plain failure (no cancel needed). - raise _mcp_tool_execution_exception( - f"MCP task '{task_id}' result payload could not be parsed as a CallToolResult.", - inner_exception=ex, - ) from ex - - async def _send_with_one_reconnect( - self, - request: types.ClientRequest, - result_type: type[Any], - *, - operation: str, - task_id: str, - ) -> Any: - """Send ``request`` with one reconnect-and-retry on connection loss. - - After a second loss (or reconnect failure), raise ``_MCPTaskAbandoned``. - Non-connection errors propagate unchanged. - """ - from anyio import ClosedResourceError - from mcp.shared.exceptions import McpError - - for attempt in range(_MCP_RECONNECT_ATTEMPTS): - try: - return await self.session.send_request(request, result_type) # type: ignore[union-attr] - except (ClosedResourceError, McpError) as ex: - if not self._is_connection_lost(ex): - raise - if attempt < _MCP_RECONNECT_ATTEMPTS - 1: - logger.info("MCP connection lost during %s; reconnecting (task_id=%s).", operation, task_id) - try: - await self.connect(reset=True) - except Exception as reconn_ex: - # Reconnect failure: task may still be running. - raise _MCPTaskAbandoned( - "Failed to reconnect to MCP server.", inner_exception=reconn_ex - ) from reconn_ex - continue - # Final attempt also lost the connection: task may still be running. - raise _MCPTaskAbandoned( - f"MCP connection lost; task state unknown (task_id={task_id}).", - inner_exception=ex, - ) from ex - raise AssertionError(f"unreachable: {operation} for {task_id}") # pragma: no cover - - @staticmethod - async def _await_with_deadline(coro: Coroutine[Any, Any, Any], timeout_s: float) -> Any: - """Await ``coro`` with a deadline; raise ``_MCPDeadlineExpired`` only on deadline. - - Unlike ``asyncio.wait_for``, an ``asyncio.TimeoutError`` raised by ``coro`` - itself propagates unchanged so callers can distinguish their own deadline - from a stray inner timeout. - """ - inner = asyncio.ensure_future(coro) - try: - done, _pending = await asyncio.wait({inner}, timeout=timeout_s) - except BaseException: - # Outer caller cancelled (or another exception): cancel inner + drain. - inner.cancel() - with contextlib.suppress(BaseException): - await inner - raise - if inner in done: - return inner.result() - # Deadline fired before inner finished. - inner.cancel() - with contextlib.suppress(BaseException): - await inner - raise _MCPDeadlineExpired - - def _spawn_best_effort_cancel(self, task_id: str) -> None: - """Fire-and-forget ``tasks/cancel`` so local cancellation propagates server-side.""" - try: - loop = asyncio.get_running_loop() - except RuntimeError: - return - cancel_task = loop.create_task(self._try_cancel_task(task_id)) - # Reuse pending-reload bookkeeping so close-on-owner waits/cancels these too. - self._pending_reload_tasks.add(cancel_task) - cancel_task.add_done_callback(self._pending_reload_tasks.discard) - - async def _try_cancel_task(self, task_id: str) -> None: - """Send ``tasks/cancel``; bounded by ``_MCP_TASK_CANCEL_TIMEOUT``. - - Failures log at warning so unattributed orphan tasks are debuggable. - """ - from mcp import types - - request = types.ClientRequest(types.CancelTaskRequest(params=types.CancelTaskRequestParams(taskId=task_id))) - try: - await asyncio.wait_for( - self.session.send_request(request, types.CancelTaskResult), # type: ignore[union-attr] - timeout=_MCP_TASK_CANCEL_TIMEOUT.total_seconds(), - ) - except asyncio.CancelledError: - raise - except asyncio.TimeoutError: - logger.warning( - "Best-effort tasks/cancel for '%s' timed out after %.1fs; remote task may still be running.", - task_id, - _MCP_TASK_CANCEL_TIMEOUT.total_seconds(), - ) - except Exception as ex: - _log_mcp_exception( - logging.WARNING, - ex, - "Best-effort tasks/cancel for '%s' failed; remote task may still be running.", - task_id, - redacted_message="Best-effort MCP task cancellation failed", - sensitive_exc_info=True, - ) - - @staticmethod - def _is_connection_lost(ex: BaseException) -> bool: - """Return True if *ex* indicates the MCP transport was torn down.""" - from anyio import ClosedResourceError - from mcp.shared.exceptions import McpError - - if isinstance(ex, ClosedResourceError): - return True - if isinstance(ex, McpError): - return "session terminated" in ex.error.message.lower() - return False - async def _call_prompt_with_runtime_kwargs( self, prompt_name: str, @@ -3671,7 +3485,7 @@ async def get_prompt(self, prompt_name: str, **kwargs: Any) -> str: or the prompt call fails. """ from anyio import ClosedResourceError - from mcp.shared.exceptions import McpError + from mcp import MCPError if not self.load_prompts_flag: raise _mcp_tool_execution_exception( @@ -3690,7 +3504,7 @@ async def get_prompt(self, prompt_name: str, **kwargs: Any) -> str: ) as span: for attempt in range(2): try: - prompt_result = await self.session.get_prompt(prompt_name, arguments=kwargs) # type: ignore + prompt_result = await self._require_connection().get_prompt(prompt_name, kwargs) return parser(prompt_result) except ClosedResourceError as cl_ex: if attempt == 0: @@ -3719,7 +3533,7 @@ async def get_prompt(self, prompt_name: str, **kwargs: Any) -> str: f"Failed to call prompt '{prompt_name}' - connection lost.", inner_exception=cl_ex, ) from cl_ex - except McpError as mcp_exc: + except MCPError as mcp_exc: error_message = mcp_exc.error.message set_mcp_span_error(span, type(mcp_exc).__name__, error_message) raise _mcp_tool_execution_exception(error_message, inner_exception=mcp_exc) from mcp_exc @@ -3810,6 +3624,7 @@ def __init__( load_prompts: bool = True, parse_prompt_results: Callable[[types.GetPromptResult], str] | None = None, request_timeout: int | None = None, + mcp_client: Client | None = None, session: ClientSession | None = None, description: str | None = None, approval_mode: (Literal["always_require", "never_require"] | MCPSpecificApproval | None) = None, @@ -3824,7 +3639,7 @@ def __init__( sampling_max_tokens: int | None = _DEFAULT_SAMPLING_MAX_TOKENS, sampling_max_requests: int | None = _DEFAULT_SAMPLING_MAX_REQUESTS, additional_properties: dict[str, Any] | None = None, - task_options: MCPTaskOptions | None = None, + task_options: Any | None = None, additional_tool_argument_names: Sequence[str] | Mapping[str, Sequence[str]] | None = None, max_host_payload_size_bytes: int | None = _DEFAULT_MCP_HOST_PAYLOAD_SIZE_BYTES, tool_result_content: MCPToolResultContentMode = "structured_first", @@ -3858,8 +3673,14 @@ def __init__( access the ``.functions`` list after connecting and set ``result_parser`` on individual ``FunctionTool`` instances. request_timeout: The default timeout in seconds for all requests. - session: An existing MCP client session to use. The caller retains ownership; - closing or resetting this wrapper does not close or replace that session. + mcp_client: An already-entered high-level MCP ``Client`` to use. The caller retains ownership; + closing or resetting this wrapper does not close or replace that client. Mutually exclusive + with ``session``. Sampling options configured on this wrapper do not modify the supplied Client. + The supplied Client also owns its transport and authentication configuration, so it cannot be + combined with this wrapper's ``header_provider``. + session: A deprecated low-level MCP ``ClientSession`` compatibility path. Prefer ``mcp_client`` for new + usage. The caller retains ownership; closing or resetting this wrapper does not close or replace + that session. Sampling options configured on this wrapper do not modify the supplied session. description: The description of the tool. approval_mode: The approval mode for the tool. This can be: - "always_require": The tool always requires approval before use. @@ -3896,8 +3717,6 @@ def __init__( (``min(requested, cap)``); ``None`` disables it. sampling_max_requests: Per-session cap on the number of sampling requests; further requests are rejected. Resets on reconnect. ``None`` disables it. - task_options: Options for tools that advertise - ``execution.taskSupport == "required"``. See :class:`MCPTaskOptions`. additional_tool_argument_names: Extra argument names to forward to the MCP server in addition to each tool's declared parameters (from its ``inputSchema.properties``). By default only declared parameters and these extras are sent. Accepts either a @@ -3920,6 +3739,7 @@ def __init__( Treat those keys as visible to this server, and source credentials outside ``function_invocation_kwargs`` - for example through ``env`` - for servers whose process you do not control. + task_options: Deprecated compatibility parameter. Non-``None`` values are ignored with a warning. max_host_payload_size_bytes: Maximum encoded MCP result size retained for Host transports. ``None`` disables the limit. tool_result_content: How to choose model-visible text when both ``content`` and @@ -3935,6 +3755,7 @@ def __init__( always_load=always_load, tool_name_prefix=tool_name_prefix, additional_properties=additional_properties, + mcp_client=mcp_client, session=session, client=client, load_tools=load_tools, @@ -3942,11 +3763,11 @@ def __init__( load_prompts=load_prompts, parse_prompt_results=parse_prompt_results, request_timeout=request_timeout, - task_options=task_options, additional_tool_argument_names=additional_tool_argument_names, sampling_approval_callback=sampling_approval_callback, sampling_max_tokens=sampling_max_tokens, sampling_max_requests=sampling_max_requests, + task_options=task_options, max_host_payload_size_bytes=max_host_payload_size_bytes, tool_result_content=tool_result_content, ) @@ -4018,6 +3839,7 @@ def __init__( load_prompts: bool = True, parse_prompt_results: Callable[[types.GetPromptResult], str] | None = None, request_timeout: int | None = None, + mcp_client: Client | None = None, session: ClientSession | None = None, description: str | None = None, approval_mode: (Literal["always_require", "never_require"] | MCPSpecificApproval | None) = None, @@ -4030,11 +3852,11 @@ def __init__( sampling_max_tokens: int | None = _DEFAULT_SAMPLING_MAX_TOKENS, sampling_max_requests: int | None = _DEFAULT_SAMPLING_MAX_REQUESTS, additional_properties: dict[str, Any] | None = None, - http_client: AsyncClient | None = None, + http_client: httpx2.AsyncClient | None = None, static_headers: Mapping[str, str] | None = None, header_provider: Callable[[dict[str, Any]], dict[str, str]] | None = None, - task_options: MCPTaskOptions | None = None, additional_tool_argument_names: Sequence[str] | Mapping[str, Sequence[str]] | None = None, + task_options: Any = None, max_host_payload_size_bytes: int | None = _DEFAULT_MCP_HOST_PAYLOAD_SIZE_BYTES, tool_result_content: MCPToolResultContentMode = "structured_first", **kwargs: Any, @@ -4044,7 +3866,8 @@ def __init__( Note: The arguments are used to create a streamable HTTP client using the new ``mcp.client.streamable_http.streamable_http_client`` API. - If an asyncClient is provided via ``http_client``, it will be used as the underlying transport client. + If an ``httpx2.AsyncClient`` is provided via ``http_client``, it will be used as the underlying transport + client. Otherwise, the tool creates and manages a default client without response-cookie persistence. Args: @@ -4068,8 +3891,12 @@ def __init__( access the ``.functions`` list after connecting and set ``result_parser`` on individual ``FunctionTool`` instances. request_timeout: The default timeout in seconds for all requests. - session: An existing MCP client session to use. The caller retains ownership; - closing or resetting this wrapper does not close or replace that session. + mcp_client: An already-entered high-level MCP ``Client`` to use. The caller retains ownership; + closing or resetting this wrapper does not close or replace that client. Mutually exclusive + with ``session``. Sampling options configured on this wrapper do not modify the supplied Client. + session: A deprecated low-level MCP ``ClientSession`` compatibility path. Prefer ``mcp_client`` for new + usage. The caller retains ownership; closing or resetting this wrapper does not close or replace + that session. Sampling options configured on this wrapper do not modify the supplied session. description: The description of the tool. approval_mode: The approval mode for the tool. This can be: - "always_require": The tool always requires approval before use. @@ -4104,7 +3931,7 @@ def __init__( (``min(requested, cap)``); ``None`` disables it. sampling_max_requests: Per-session cap on the number of sampling requests; further requests are rejected. Resets on reconnect. ``None`` disables it. - http_client: Optional asyncClient to use. If not provided, the tool creates and manages + http_client: Optional ``httpx2.AsyncClient`` to use. If not provided, the tool creates and manages a client that does not persist response cookies, with or without a ``header_provider``. Explicit ``Cookie`` headers from ``static_headers`` or a ``header_provider`` are supported. Supplied clients retain their cookie behavior and remain caller-owned. Applications @@ -4112,7 +3939,7 @@ def __init__( principal and manage its lifetime. Cookie rejection does not partition MCP protocol sessions or other server-side state between principals. Use ``static_headers`` for fixed headers. To configure timeouts or other - HTTP client settings, create and pass your own ``asyncClient`` instance. + HTTP client settings, create and pass your own ``httpx2.AsyncClient`` instance. Security: when you attach sensitive headers (e.g. authentication tokens) via a custom ``http_client``, you are responsible for enforcing the same origin-scoped header policy that the built-in ``header_provider`` hook @@ -4137,14 +3964,14 @@ def __init__( caller-supplied kwargs. Model-over-runtime precedence applies only to outbound tool arguments, not to authentication. Use this to forward per-request context (e.g. authentication tokens set in - agent middleware) without creating a separate ``httpx.AsyncClient``. + agent middleware) without creating a separate ``httpx2.AsyncClient``. The complete header set used to initialize a connection becomes that session's immutable effective identity. Header names are compared case-insensitively and values case-sensitively. Before an Agent exposes a connected tool's functions for a run, it reconciles the run's effective headers and reconnects when they differ; generated tool and prompt calls perform the same check before sending. Connection-lifetime - requests - including discovery, background pings, resource and prompt reloads, - and long-running task polling - always use the session-bound header set. A + requests - including discovery, background pings, and resource and prompt reloads - + always use the session-bound header set. A caller-supplied session's established identity is unknown and cannot be reconnected by this wrapper, so dynamic header resolution raises ``ToolExecutionException`` and requires a separate framework-managed tool instance. @@ -4172,8 +3999,6 @@ def __init__( values continue on to the outbound argument filter, so reading a credential here does not withhold it from the server. See ``additional_tool_argument_names`` below. - task_options: Options for tools that advertise - ``execution.taskSupport == "required"``. See :class:`MCPTaskOptions`. additional_tool_argument_names: Extra argument names to forward to the MCP server in addition to each tool's declared parameters (from its ``inputSchema.properties``). By default only declared parameters and these extras are sent. Accepts either a @@ -4199,12 +4024,19 @@ def __init__( ``function_invocation_kwargs``: read a ``ContextVar`` inside the provider (which still allows a different value per request), or configure a custom ``http_client``. + task_options: Deprecated compatibility parameter. Non-``None`` values are ignored with a warning. max_host_payload_size_bytes: Maximum encoded MCP result size retained for Host transports. ``None`` disables the limit. tool_result_content: How to choose model-visible text when both ``content`` and ``structuredContent`` are present. See :data:`MCPToolResultContentMode`. kwargs: Additional keyword arguments (accepted for backward compatibility but not used). """ + if mcp_client is not None and header_provider is not None: + raise ValueError( + "`header_provider` cannot be used in combination with a user-supplied `mcp_client`; " + "configure per-request headers on the supplied Client's transport." + ) + super().__init__( name=name, description=description, @@ -4214,6 +4046,7 @@ def __init__( always_load=always_load, tool_name_prefix=tool_name_prefix, additional_properties=additional_properties, + mcp_client=mcp_client, session=session, client=client, load_tools=load_tools, @@ -4221,17 +4054,17 @@ def __init__( load_prompts=load_prompts, parse_prompt_results=parse_prompt_results, request_timeout=request_timeout, - task_options=task_options, additional_tool_argument_names=additional_tool_argument_names, sampling_approval_callback=sampling_approval_callback, sampling_max_tokens=sampling_max_tokens, sampling_max_requests=sampling_max_requests, + task_options=task_options, max_host_payload_size_bytes=max_host_payload_size_bytes, tool_result_content=tool_result_content, ) self.url = url self.terminate_on_close = terminate_on_close - self._httpx_client: AsyncClient | None = http_client + self._httpx_client: httpx2.AsyncClient | None = http_client self._static_headers = dict(static_headers or {}) self._header_provider = header_provider # Headers for the in-flight call_tool invocation. The streamable HTTP transport @@ -4249,11 +4082,12 @@ def __init__( # the replacement transport initializes. self._session_headers: dict[str, str] | None = None self._session_header_identity: _MCPHeaderIdentity | None = None + self._session_header_session: ClientSession | None = None self._pending_session_headers: dict[str, str] | None = None self._pending_connection_kwargs: dict[str, Any] | None = None self._call_headers_lock = asyncio.Lock() self._header_request_owner = object() - self._header_hook_client: AsyncClient | None = None + self._header_hook_client: httpx2.AsyncClient | None = None def _mcp_base_span_attributes(self) -> dict[str, Any]: attrs = super()._mcp_base_span_attributes() @@ -4285,7 +4119,7 @@ def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: Returns: An async context manager for the streamable HTTP client transport. """ - from httpx import URL, AsyncClient, Timeout + from httpx2 import URL, AsyncClient, Timeout self._promote_pending_session_headers() @@ -4317,11 +4151,17 @@ async def _inject_headers(request: Request) -> None: # ruff:ignore[unused-async if self._header_provider is not None: # The transport may send this request from a task whose context was # captured before call_tool set the ContextVar; fall back to the - # instance-level snapshot of the active call's headers. Both are None - # only when this is an ambient request outside call_tool; an active - # call that legitimately produced no headers yields an empty dict and - # must not trigger the ambient fallback below. - dynamic_headers = _mcp_call_headers.get(None) + # instance-level snapshot of the active call's headers. Context values + # are owner-tagged so a nested tool sharing the client cannot inherit + # another tool's credentials. Both are None only when this is an ambient + # request outside call_tool; an active call that legitimately produced + # no headers yields an empty dict and must not trigger the ambient fallback. + call_header_context = _mcp_call_headers.get(None) + dynamic_headers = ( + call_header_context[1] + if call_header_context is not None and call_header_context[0] is self._header_request_owner + else None + ) if dynamic_headers is None: dynamic_headers = self._active_call_headers else: @@ -4385,7 +4225,7 @@ async def _inject_headers(request: Request) -> None: # ruff:ignore[unused-async terminate_on_close=self.terminate_on_close if self.terminate_on_close is not None else True, ) - async def _close_owned_http_client(self, http_client: AsyncClient) -> None: + async def _close_owned_http_client(self, http_client: httpx2.AsyncClient) -> None: """Release a framework-created client without retaining it for reconnect.""" try: await http_client.aclose() @@ -4454,6 +4294,8 @@ async def _prepare_for_run(self, kwargs: Mapping[str, Any]) -> None: def _bind_session_headers(self, headers: Mapping[str, str]) -> None: self._session_headers = dict(headers) self._session_header_identity = _mcp_header_identity(headers) + connection = self._connection + self._session_header_session = connection.session if connection is not None else None def _stage_session_headers(self, headers: Mapping[str, str], kwargs: Mapping[str, Any]) -> None: self._pending_session_headers = dict(headers) @@ -4501,8 +4343,9 @@ async def _ensure_session_identity( kwargs: Mapping[str, Any], ) -> None: identity = _mcp_header_identity(headers) - if not self._owns_session: - if self._session_header_identity is None: + connection = self._connection + if isinstance(connection, _SessionMCPConnection): + if self._session_header_identity is None or self._session_header_session is not connection.session: raise _mcp_tool_execution_exception( "MCP header identity is unknown for a caller-supplied session; " "use a separate framework-managed tool instance." @@ -4544,7 +4387,7 @@ async def _call_prompt_with_runtime_kwargs( headers = self._effective_headers(runtime_kwargs) async with self._call_headers_lock: await self._ensure_session_identity(headers, runtime_kwargs) - token = _mcp_call_headers.set(headers) + token = _mcp_call_headers.set((self._header_request_owner, headers)) self._active_call_headers = headers try: return await super()._call_prompt_with_runtime_kwargs( @@ -4560,9 +4403,11 @@ def _release_connection_kwargs(self) -> None: self._connection_kwargs = None self._pending_session_headers = None self._pending_connection_kwargs = None - if self._owns_session: + connection = self._connection + if connection is None or connection.is_framework_owned: self._session_headers = None self._session_header_identity = None + self._session_header_session = None async def call_tool(self, tool_name: str, **kwargs: Any) -> str | list[Content]: """Call a tool, injecting headers from the header_provider if configured. @@ -4595,7 +4440,7 @@ async def call_tool(self, tool_name: str, **kwargs: Any) -> str | list[Content]: headers = self._effective_headers(header_kwargs) async with self._call_headers_lock: await self._ensure_session_identity(headers, header_kwargs) - token = _mcp_call_headers.set(headers) + token = _mcp_call_headers.set((self._header_request_owner, headers)) self._active_call_headers = headers try: return await super().call_tool(tool_name, **kwargs) @@ -4605,25 +4450,13 @@ async def call_tool(self, tool_name: str, **kwargs: Any) -> str | list[Content]: return await super().call_tool(tool_name, **kwargs) +@deprecated("MCP WebSocket transport was removed in MCP v2. Use MCPStreamableHTTPTool instead.") class MCPWebsocketTool(MCPTool): - """MCP tool for connecting to WebSocket-based MCP servers. - - This class connects to MCP servers that communicate via WebSocket. - - Examples: - .. code-block:: python - - from agent_framework import MCPWebsocketTool, Agent + """Deprecated compatibility symbol for the removed MCP WebSocket transport. - # Create an MCP WebSocket tool - mcp_tool = MCPWebsocketTool( - name="realtime-service", url="wss://service.example.com/mcp", description="Real-time service operations" - ) - - # Use with a chat agent - async with mcp_tool: - agent = Agent(client=client, name="assistant", tools=mcp_tool) - response = await agent.run("Connect to the real-time service") + MCP v2 removed WebSocket transport because it was never part of the MCP + specification. Use :class:`MCPStreamableHTTPTool` instead. This class remains + importable during the deprecation window but cannot create a connection. """ def __init__( @@ -4648,23 +4481,22 @@ def __init__( sampling_max_tokens: int | None = _DEFAULT_SAMPLING_MAX_TOKENS, sampling_max_requests: int | None = _DEFAULT_SAMPLING_MAX_REQUESTS, additional_properties: dict[str, Any] | None = None, - task_options: MCPTaskOptions | None = None, additional_tool_argument_names: Sequence[str] | Mapping[str, Sequence[str]] | None = None, + task_options: Any = None, max_host_payload_size_bytes: int | None = _DEFAULT_MCP_HOST_PAYLOAD_SIZE_BYTES, tool_result_content: MCPToolResultContentMode = "structured_first", **kwargs: Any, ) -> None: - """Initialize the MCP WebSocket tool. + """Initialize the deprecated MCP WebSocket compatibility wrapper. Note: - The arguments are used to create a WebSocket client. - See ``mcp.client.websocket.websocket_client`` for more details. - Any extra arguments passed to the constructor will be passed to the - WebSocket client constructor. + The constructor signature is retained for source compatibility. + MCP v2 cannot create a WebSocket transport, and extra ``kwargs`` are + accepted but unused. Args: name: The name of the tool. - url: The URL of the MCP server. + url: The former WebSocket URL, retained for source compatibility. Keyword Args: tool_name_prefix: Optional prefix to prepend to exposed MCP function names. @@ -4718,8 +4550,6 @@ def __init__( (``min(requested, cap)``); ``None`` disables it. sampling_max_requests: Per-session cap on the number of sampling requests; further requests are rejected. Resets on reconnect. ``None`` disables it. - task_options: Options for tools that advertise - ``execution.taskSupport == "required"``. See :class:`MCPTaskOptions`. additional_tool_argument_names: Extra argument names to forward to the MCP server in addition to each tool's declared parameters (from its ``inputSchema.properties``). By default only declared parameters and these extras are sent. Accepts either a @@ -4742,11 +4572,12 @@ def __init__( The same dict is shared with every MCP server attached to the run. This transport has no header hook, so source credentials outside ``function_invocation_kwargs`` for servers you do not control. + task_options: Deprecated compatibility parameter. Non-``None`` values are ignored with a warning. max_host_payload_size_bytes: Maximum encoded MCP result size retained for Host transports. ``None`` disables the limit. tool_result_content: How to choose model-visible text when both ``content`` and ``structuredContent`` are present. See :data:`MCPToolResultContentMode`. - kwargs: Any extra arguments to pass to the WebSocket client. + kwargs: Deprecated compatibility arguments. They are not used. """ super().__init__( name=name, @@ -4764,11 +4595,11 @@ def __init__( load_prompts=load_prompts, parse_prompt_results=parse_prompt_results, request_timeout=request_timeout, - task_options=task_options, additional_tool_argument_names=additional_tool_argument_names, sampling_approval_callback=sampling_approval_callback, sampling_max_tokens=sampling_max_tokens, sampling_max_requests=sampling_max_requests, + task_options=task_options, max_host_payload_size_bytes=max_host_payload_size_bytes, tool_result_content=tool_result_content, ) @@ -4800,31 +4631,9 @@ def _mcp_base_span_attributes(self) -> dict[str, Any]: return attrs def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: - """Get an MCP WebSocket client. + """Raise because MCP v2 removed WebSocket transport. - Returns: - An async context manager for the WebSocket client transport. + Raises: + RuntimeError: Always. Use :class:`MCPStreamableHTTPTool` instead. """ - try: - websocket_module = __import__("mcp.client.websocket", fromlist=["websocket_client"]) - except ModuleNotFoundError as ex: - missing_name = ex.name or "mcp/websocket dependencies" - if missing_name == "mcp" or missing_name.startswith("mcp."): - reason = "The `mcp` package is not installed." - elif missing_name == "websockets" or missing_name.startswith("websockets."): - reason = "WebSocket transport support is not installed." - else: - reason = f"The optional dependency `{missing_name}` is not installed." - raise ModuleNotFoundError( - f"`MCPWebsocketTool` requires websocket transport support. {reason} " - "Please install `mcp[ws]` and update your dependencies." - ) from ex - - # Support MCP releases from before and after the transport gained its deprecation marker. - websocket_client = websocket_module.websocket_client - args: dict[str, Any] = { - "url": self.url, - } - if self._client_kwargs: - args.update(self._client_kwargs) - return websocket_client(**args) + raise RuntimeError("MCP WebSocket transport was removed in MCP v2. Use MCPStreamableHTTPTool instead.") diff --git a/python/packages/core/agent_framework/_skills.py b/python/packages/core/agent_framework/_skills.py index 3e14844b85a..8e323145f0b 100644 --- a/python/packages/core/agent_framework/_skills.py +++ b/python/packages/core/agent_framework/_skills.py @@ -88,15 +88,15 @@ from ._feature_stage import ExperimentalFeature, experimental from ._filesystem import _is_link_or_reparse_point # pyright: ignore[reportPrivateUsage] +from ._mcp import _as_mcp_connection, _MCPConnection # pyright: ignore[reportPrivateUsage] from ._middleware import FunctionInvocationContext from ._sessions import ContextProvider from ._telemetry import FeatureIndex, mark_feature_used from ._tools import ApprovalMode, FunctionTool if TYPE_CHECKING: - from mcp.client.session import ClientSession + from mcp import Client, ClientSession from mcp.types import ReadResourceResult - from pydantic import AnyUrl from ._agents import SupportsAgentRun from ._sessions import AgentSession, SessionContext @@ -4439,15 +4439,8 @@ async def get_skills(self, context: SkillsSourceContext) -> list[Skill]: # region MCP Skills -def _mcp_any_url(uri: str) -> AnyUrl: - """Convert a string URI to a :class:`pydantic.AnyUrl` for MCP client calls.""" - from pydantic import AnyUrl as _AnyUrl - - return _AnyUrl(uri) - - def _is_mcp_resource_not_found(ex: Exception) -> bool: - """Return ``True`` when *ex* is an :class:`McpError` indicating a missing resource. + """Return ``True`` when *ex* is an :class:`MCPError` indicating a missing resource. Two codes are treated as "not found": @@ -4457,6 +4450,7 @@ def _is_mcp_resource_not_found(ex: Exception) -> bool: * ``METHOD_NOT_FOUND`` (``-32601``) — the server does not implement ``resources/read`` at all, which for the skills source is functionally equivalent to "no skills available." + * ``INVALID_PARAMS`` from an :class:`MCPError` indicating that the ``uri`` parameter is invalid. All other codes — ``INVALID_PARAMS``, ``INTERNAL_ERROR``, ``PARSE_ERROR``, ``CONNECTION_CLOSED``, auth rejections, and generic handler errors @@ -4464,13 +4458,20 @@ def _is_mcp_resource_not_found(ex: Exception) -> bool: token or crashing server is not silently mistaken for "the server has no skills." """ - from mcp.shared.exceptions import McpError as _McpError + from mcp.shared.exceptions import MCPError as _MCPError + from mcp.types import INVALID_PARAMS as _INVALID_PARAMS + from mcp.types import METHOD_NOT_FOUND as _METHOD_NOT_FOUND - if not isinstance(ex, _McpError): + if not isinstance(ex, _MCPError): return False - from mcp.types import METHOD_NOT_FOUND as _METHOD_NOT_FOUND - return ex.error.code in {-32002, _METHOD_NOT_FOUND} + data = ex.error.data + return ex.error.code in {-32002, _METHOD_NOT_FOUND} or ( + ex.error.code == _INVALID_PARAMS + and isinstance(data, dict) + and cast(dict[str, object], data).keys() == {"uri"} + and isinstance(data["uri"], str) + ) def _mcp_join_text(result: ReadResourceResult) -> str: @@ -4505,7 +4506,7 @@ def _mcp_first_blob(result: ReadResourceResult) -> tuple[bytes, str | None] | No # binascii.Error (invalid base64) subclasses ValueError. logger.warning("Failed to base64-decode blob resource content from the MCP server.", exc_info=True) return None - return data, content.mimeType + return data, content.mime_type return None @@ -4588,37 +4589,39 @@ def _parse_mcp_skill_index(text: str) -> _McpSkillIndex: return _McpSkillIndex(schema=raw.get("$schema"), skills=entries) -def _resolve_mcp_session_provider( - client: ClientSession | None, - session_provider: Callable[[], ClientSession] | None, -) -> Callable[[], ClientSession]: - """Normalize the two MCP session inputs into a single session resolver. +def _resolve_mcp_connection_provider( + client: Client | ClientSession | None, + session_provider: Callable[[], Client | ClientSession] | None, +) -> Callable[[], _MCPConnection]: + """Normalize the two MCP connection inputs into one connection provider. Callers supply **exactly one** of a fixed ``client`` or a ``session_provider`` callable. A fixed client is wrapped in a provider that - always returns it; a provider is used as-is so the session is resolved on - every call (reconnect-safe for sources whose underlying session is replaced - over time, e.g. a reconnecting :class:`~agent_framework.MCPTool`). + always returns it; a provider is resolved on every call so a reconnecting + owner can supply its current high-level Client or low-level ClientSession. + The ``session_provider`` name is retained for compatibility. Args: - client: A fixed MCP client session, or ``None``. - session_provider: A callable returning the current MCP client session, - or ``None``. + client: A fixed MCP client or session, or ``None``. + session_provider: A callable returning the current high-level Client or + low-level ClientSession, or ``None``. Returns: - A callable that returns the MCP client session to use. + A callable returning the normalized MCP connection used for resource reads. Raises: ValueError: If both or neither of *client* and *session_provider* are provided. """ - if client is not None and session_provider is not None: - raise ValueError("Provide exactly one of 'client' or 'session_provider', not both.") if session_provider is not None: - return session_provider + if client is not None: + raise ValueError("Provide exactly one of 'client' or 'session_provider'.") + return lambda: _as_mcp_connection(session_provider()) + if client is None: raise ValueError("Provide exactly one of 'client' or 'session_provider'.") - fixed: ClientSession = client + + fixed = _as_mcp_connection(client) return lambda: fixed @@ -4711,9 +4714,9 @@ def __init__( self, frontmatter: SkillFrontmatter, skill_md_uri: str, - client: ClientSession | None = None, + client: Client | ClientSession | None = None, *, - session_provider: Callable[[], ClientSession] | None = None, + session_provider: Callable[[], Client | ClientSession] | None = None, ) -> None: """Initialize an MCPSkill. @@ -4724,17 +4727,15 @@ def __init__( skill_md_uri: The full MCP resource URI of the ``SKILL.md`` resource (e.g. ``skill://unit-converter/SKILL.md``). The skill's root URI is derived by stripping the trailing ``SKILL.md`` segment. - client: A fixed MCP client session used to fetch resources on demand. - Use this when the session outlives the skill (e.g. a caller-owned - long-lived session). + client: A fixed, already-entered high-level MCP Client or a deprecated + caller-owned ClientSession used to fetch resources on demand. + MCPSkill borrows the connection and never enters or closes it. Keyword Args: - session_provider: A callable returning the current MCP client session, - resolved on every fetch. Prefer this over *client* when the - underlying session may be replaced over the skill's lifetime (for - example, a reconnecting :class:`~agent_framework.MCPTool` whose - ``session`` is swapped on reconnect), so a cached skill keeps - using the live session instead of a closed one. + session_provider: Compatibility-named callable returning the current + high-level Client or low-level ClientSession, resolved on every + fetch. Use it when the owner may replace the underlying connection; + MCPSkill borrows each returned connection and never enters or closes it. Raises: ValueError: If both or neither of *client* and *session_provider* are @@ -4743,7 +4744,7 @@ def __init__( self._frontmatter = frontmatter self._skill_md_uri = skill_md_uri self._skill_root_uri = self._compute_skill_root_uri(skill_md_uri) - self._session_provider = _resolve_mcp_session_provider(client, session_provider) + self._connection_provider = _resolve_mcp_connection_provider(client, session_provider) self._content: str | None = None @property @@ -4767,7 +4768,7 @@ async def get_content(self) -> str: if self._content is not None: return self._content - result = await self._session_provider().read_resource(_mcp_any_url(self._skill_md_uri)) + result = await self._connection_provider().read_resource(self._skill_md_uri) text = _mcp_join_text(result) if not text: raise ValueError(f"The MCP server returned no text content for SKILL.md resource '{self._skill_md_uri}'.") @@ -4797,7 +4798,7 @@ async def get_resource(self, name: str) -> SkillResource | None: uri = self._skill_root_uri + normalized try: - result = await self._session_provider().read_resource(_mcp_any_url(uri)) + result = await self._connection_provider().read_resource(uri) except Exception as ex: if _is_mcp_resource_not_found(ex): logger.debug("MCP resource '%s' not available: %s", uri, ex) @@ -5081,7 +5082,7 @@ class _ArchiveEntryLoader: def __init__( self, - session_provider: Callable[[], ClientSession], + connection_provider: Callable[[], _MCPConnection], *, resource_extensions: tuple[str, ...] | None, resource_search_depth: int, @@ -5089,7 +5090,7 @@ def __init__( max_size_bytes: int, max_uncompressed_size_bytes: int, ) -> None: - self._session_provider = session_provider + self._connection_provider = connection_provider self._resource_extensions: tuple[str, ...] = ( resource_extensions if resource_extensions is not None else DEFAULT_RESOURCE_EXTENSIONS ) @@ -5161,7 +5162,7 @@ async def _download(self, entry: _McpSkillIndexEntry) -> tuple[bytes, str | None while reading the archive resource is re-raised. """ try: - result = await self._session_provider().read_resource(_mcp_any_url(cast(str, entry.url))) + result = await self._connection_provider().read_resource(cast(str, entry.url)) except Exception as ex: if _is_mcp_resource_not_found(ex): logger.debug("Archive resource '%s' for skill '%s' not available: %s", entry.url, entry.name, ex) @@ -5364,6 +5365,11 @@ class MCPSkillsSource(SkillsSource): already provides refresh/caching for any source, this source does not offer a separate refresh interval; wrap it in :class:`CachingSkillsSource` to cache. + When backed by a high-level MCP ``Client``, individual resource reads honor + modern server ``ttlMs`` / ``cacheScope`` hints through the SDK response cache. + A caller-supplied ``ClientSession`` remains uncached. This wire-response cache + is separate from :class:`CachingSkillsSource`, which caches the parsed skill list. + Archive digests: An archive entry's non-null ``digest`` must be ``sha256:`` followed by 64 lowercase hexadecimal characters. It is verified against the decoded @@ -5400,12 +5406,13 @@ class MCPSkillsSource(SkillsSource): Examples: .. code-block:: python - from mcp.client.session import ClientSession + from mcp import Client - source = MCPSkillsSource(client=session) - # `context` is normally supplied by SkillsProvider at runtime. - context = SkillsSourceContext(agent=agent) - skills = await source.get_skills(context) + async with Client("https://example.com/mcp") as client: + source = MCPSkillsSource(client=client) + # `context` is normally supplied by SkillsProvider at runtime. + context = SkillsSourceContext(agent=agent) + skills = await source.get_skills(context) """ _INDEX_URI: Final[str] = "skill://index.json" @@ -5414,9 +5421,9 @@ class MCPSkillsSource(SkillsSource): def __init__( self, - client: ClientSession | None = None, + client: Client | ClientSession | None = None, *, - session_provider: Callable[[], ClientSession] | None = None, + session_provider: Callable[[], Client | ClientSession] | None = None, archive_resource_extensions: tuple[str, ...] | None = None, archive_resource_search_depth: int = DEFAULT_SEARCH_DEPTH, archive_max_file_count: int = _DEFAULT_ARCHIVE_MAX_FILE_COUNT, @@ -5428,19 +5435,18 @@ def __init__( Provide **exactly one** of *client* or *session_provider*. Args: - client: A fixed MCP client session connected to a server that exposes - Agent Skills resources. Use this when the session outlives the - source (e.g. a caller-owned long-lived session). + client: A fixed, already-entered high-level MCP Client or a deprecated + caller-owned ClientSession connected to a server that exposes + Agent Skills resources. MCPSkillsSource borrows the connection; + it never enters or closes it. Keyword Args: - session_provider: A callable returning the current MCP client session, - resolved on every discovery and on each skill's on-demand fetch. - Prefer this over *client* when the underlying session may be - replaced over time (for example, a reconnecting - :class:`~agent_framework.MCPTool` whose ``session`` is swapped on - reconnect), so cached skills keep using the live session. The - provider is forwarded to every :class:`MCPSkill` this source - creates. + session_provider: Compatibility-named callable returning the current + high-level Client or low-level ClientSession. It is resolved on + every discovery and on-demand fetch, so cached skills can follow + a replacement connection without reading ``MCPTool.session``. + MCPSkillsSource borrows every returned connection and never enters + or closes it. archive_resource_extensions: Allowed file extensions for resources discovered in ``archive``-type skills. When ``None`` (the default), the file-source default set (``.md``, ``.json``, ``.yaml``, ``.yml``, ``.csv``, ``.xml``, @@ -5462,9 +5468,9 @@ def __init__( ValueError: If both or neither of *client* and *session_provider* are provided. """ - self._session_provider = _resolve_mcp_session_provider(client, session_provider) + self._connection_provider = _resolve_mcp_connection_provider(client, session_provider) self._archive_loader = _ArchiveEntryLoader( - self._session_provider, + self._connection_provider, resource_extensions=archive_resource_extensions, resource_search_depth=archive_resource_search_depth, max_file_count=archive_max_file_count, @@ -5534,7 +5540,7 @@ async def _try_read_index(self) -> _McpSkillIndex | None: absent, empty, or malformed. """ try: - result = await self._session_provider().read_resource(_mcp_any_url(self._INDEX_URI)) + result = await self._connection_provider().read_resource(self._INDEX_URI) except Exception as ex: if _is_mcp_resource_not_found(ex): logger.debug("No skill://index.json resource available on MCP server: %s", ex) @@ -5553,6 +5559,14 @@ async def _try_read_index(self) -> _McpSkillIndex | None: logger.warning("Failed to parse skill://index.json JSON document.", exc_info=True) return None + def _current_connection_source(self) -> Client | ClientSession: + connection = self._connection_provider() + if connection.client is not None: + return connection.client + if connection.session is not None: + return connection.session + raise RuntimeError("MCP connection has neither a Client nor a ClientSession.") + def _try_create_skill(self, entry: _McpSkillIndexEntry) -> MCPSkill | None: """Attempt to create an :class:`MCPSkill` from a ``skill-md`` index entry. @@ -5584,7 +5598,7 @@ def _try_create_skill(self, entry: _McpSkillIndexEntry) -> MCPSkill | None: logger.debug("Skipping entry '%s': invalid metadata: %s", entry.name, ex) return None - return MCPSkill(frontmatter=fm, skill_md_uri=entry.url, session_provider=self._session_provider) + return MCPSkill(frontmatter=fm, skill_md_uri=entry.url, session_provider=self._current_connection_source) # endregion diff --git a/python/packages/core/agent_framework/_types.py b/python/packages/core/agent_framework/_types.py index 5ba5b86459a..3106e91ba40 100644 --- a/python/packages/core/agent_framework/_types.py +++ b/python/packages/core/agent_framework/_types.py @@ -24,7 +24,20 @@ from copy import deepcopy from datetime import datetime from inspect import isawaitable, ismethod -from typing import TYPE_CHECKING, Any, ClassVar, Final, Generic, Literal, NamedTuple, NewType, TypeAlias, cast, overload +from typing import ( + TYPE_CHECKING, + Any, + ClassVar, + Final, + Generic, + Literal, + NamedTuple, + NewType, + TypeAlias, + cast, + get_args, + overload, +) from typing_extensions import Required, TypedDict @@ -56,11 +69,16 @@ def _parse_content_list(contents_data: Sequence[Any]) -> list[Content]: """Parse a list of content data into appropriate Content objects. Args: - contents_data: List of content data (strings, dicts, or already constructed objects) + contents_data: List of content data (strings, dicts, or already constructed objects). + A single string is treated as one text item. Returns: List of Content objects with unknown types logged and ignored """ + if isinstance(contents_data, str): + # A string is itself a sequence of strings, so iterating it would create one text + # content per character. + contents_data = [contents_data] contents: list[Content] = [] for content_data in contents_data: if content_data is None: @@ -442,6 +460,8 @@ def _restore_compaction_annotation_in_additional_properties( "code_interpreter_tool_result", }) +_CONTENT_TYPES: Final[frozenset[str]] = frozenset(get_args(ContentType)) + class TextSpanRegion(TypedDict, total=False): """TypedDict representation of a text span region annotation.""" @@ -1906,6 +1926,13 @@ def from_dict(cls: type[ContentT], data: Mapping[str, Any]) -> ContentT: remaining["outputs"] = [cls.from_dict(item) if isinstance(item, dict) else item for item in output_items] # type: ignore[reportUnknownVariableType] if (content_items := remaining.get("items")) and isinstance(content_items, list): remaining["items"] = [cls.from_dict(item) if isinstance(item, dict) else item for item in content_items] # type: ignore[reportUnknownVariableType] + # A single nested Content (e.g., outputs in image_generation_tool_result) and Content items in a tool output + # (e.g., output in mcp_server_tool_result). These fields can also hold plain values such as tool JSON. + # A list in outputs was converted above and passes through unchanged. + if (single_output := remaining.get("outputs")) is not None: + remaining["outputs"] = cls._from_serialized_value(single_output) + if (tool_output := remaining.get("output")) and isinstance(tool_output, list): + remaining["output"] = [cls._from_serialized_value(item) for item in cast(list[Any], tool_output)] return cls( type=content_type, @@ -1915,6 +1942,30 @@ def from_dict(cls: type[ContentT], data: Mapping[str, Any]) -> ContentT: **remaining, ) + @classmethod + def _from_serialized_value(cls: type[ContentT], value: Any) -> Any: + """Rebuild a Content from its serialized mapping, or return the value unchanged. + + A mapping is rebuilt only when it has a known content type and the rebuilt Content serializes back to the + same mapping, with or without ``None`` values. Any other value, such as tool JSON that only shares a + content type name, is kept as it is. A mapping identical to a serialized Content (including its + ``additional_properties``) cannot be told apart from one and is rebuilt. + """ + if not isinstance(value, dict): + return value + mapping = cast(dict[str, Any], value) + content_type = mapping.get("type") + if not isinstance(content_type, str) or content_type not in _CONTENT_TYPES: + return mapping + try: + content = cls.from_dict(mapping) + if content.to_dict() == mapping or content.to_dict(exclude_none=False) == mapping: + return content + except Exception: + # The mapping is not a serialized Content (for example tool JSON with other fields), so keep it. + return mapping + return mapping + def __add__(self, other: Content) -> Content: """Concatenate or merge two Content instances.""" if not isinstance(other, Content): @@ -2270,7 +2321,7 @@ class Message(SerializationMixin): # Create a message with mixed content types assistant_msg = Message( "assistant", - ["The weather is sunny!", Content.from_image_uri("https://...")], + ["The weather is sunny!", Content.from_uri("https://example.com/image.png", media_type="image/png")], ) print(assistant_msg.text) # "The weather is sunny!" @@ -2306,7 +2357,8 @@ def __init__( Args: role: The role of the author of the message (e.g., "user", "assistant", "system", "tool"). contents: A sequence of content items. Can be Content objects, strings (auto-converted - to TextContent), or dicts (parsed via Content.from_dict). Defaults to empty list. + to TextContent), or dicts (parsed via Content.from_dict). A single string is + treated as one text item. Defaults to empty list. Keyword Args: author_name: Optional name of the author of the message. @@ -5201,7 +5253,7 @@ def my_tool(x: int) -> int: tools = normalize_tools(my_tool) # List of tools - tools = normalize_tools([my_tool, another_tool]) + tools = normalize_tools([my_tool]) """ from ._tools import normalize_tools as _normalize_tools @@ -5237,7 +5289,7 @@ def my_tool(x: int) -> int: tools = await validate_tools(my_tool) # List of tools - tools = await validate_tools([my_tool, another_tool]) + tools = await validate_tools([my_tool]) """ # Use normalize_tools for common sync logic (converts callables to FunctionTool) normalized = normalize_tools(tools) diff --git a/python/packages/core/agent_framework/_workflows/_agent_executor.py b/python/packages/core/agent_framework/_workflows/_agent_executor.py index eb81f81572e..43540d36c18 100644 --- a/python/packages/core/agent_framework/_workflows/_agent_executor.py +++ b/python/packages/core/agent_framework/_workflows/_agent_executor.py @@ -314,6 +314,7 @@ def __init__( id: str | None = None, context_mode: Literal["full", "last_agent", "custom"] | None = None, context_filter: Callable[[list[Message]], list[Message]] | None = None, + ensure_trailing_user_turn: bool = False, ): """Initialize the executor with a unique identifier. @@ -332,7 +333,12 @@ def __init__( context_filter: A function that takes the full conversation (list of Messages) as input and returns a filtered list of Messages to be used as context for the agent run. This is required if context_mode is set to "custom". + ensure_trailing_user_turn: If True, appends a synthetic user continuation message + ("please continue.") when the cache ends on an assistant message. Some + chat-completions providers return empty text when the prompt ends on + ``assistant``. Defaults to False to preserve existing behavior. """ + self._ensure_trailing_user_turn = ensure_trailing_user_turn # Prefer provided id; else use agent.name if present; else generate deterministic prefix exec_id = id or resolve_agent_id(agent) if not exec_id: @@ -746,14 +752,21 @@ async def _run_agent_and_emit( containing incremental updates (streaming mode) or a single output event (type='output') containing the complete response (non-streaming mode). """ + invocation_messages = self._build_invocation_messages() self._session.state[_WORKFLOW_DEFER_COMPUTER_FUNCTION_RESULTS_KEY] = True try: if ctx.is_streaming(): # Streaming mode: emit incremental updates - response = await self._run_agent_streaming(cast(WorkflowContext[Never, AgentResponseUpdate], ctx)) + response = await self._run_agent_streaming( + cast(WorkflowContext[Never, AgentResponseUpdate], ctx), + messages=invocation_messages, + ) else: # Non-streaming mode: use run() and emit single event - response = await self._run_agent(cast(WorkflowContext[Never, AgentResponse], ctx)) + response = await self._run_agent( + cast(WorkflowContext[Never, AgentResponse], ctx), + messages=invocation_messages, + ) finally: self._session.state.pop(_WORKFLOW_DEFER_COMPUTER_FUNCTION_RESULTS_KEY, None) @@ -771,11 +784,39 @@ async def _run_agent_and_emit( await ctx.send_message(agent_response) self._cache.clear() - async def _run_agent(self, ctx: WorkflowContext[Never, AgentResponse]) -> AgentResponse | None: + def _build_invocation_messages(self) -> list[Message]: + """Return an invocation-only copy of the cache with trailing user turn if needed. + + The copy — not ``self._cache`` — is what gets passed to the agent's + ``run()`` call, so the synthetic "please continue." message never + persists in the cache or ``full_conversation``. Only the invocation + that needs the trailing user turn sees it; downstream agents in a + multi-agent chain are unaffected. + """ + messages = list(self._cache) + if self._ensure_trailing_user_turn and messages and messages[-1].role == "assistant": + logger.debug( + "AgentExecutor %s: cache ends on an assistant message; appending a synthetic " + "continuation turn to the invocation-only copy to avoid empty completions from " + "providers that require a trailing user message.", + self.id, + ) + messages.append(Message(role="user", contents=["please continue."])) + return messages + + async def _run_agent( + self, + ctx: WorkflowContext[Never, AgentResponse], + *, + messages: list[Message] | None = None, + ) -> AgentResponse | None: """Execute the underlying agent in non-streaming mode. Args: ctx: The workflow context for emitting events. + messages: Invocation-only message list. If provided, used instead + of ``self._cache`` so the synthetic trailing user turn does + not persist in the cache. Returns: The complete AgentResponse, or None if waiting for user input. @@ -785,7 +826,8 @@ async def _run_agent(self, ctx: WorkflowContext[Never, AgentResponse]) -> AgentR function_invocation_kwargs, client_kwargs = self._prepare_agent_run_args(raw_run_kwargs, resolved_run_kwargs) tools = ctx.get_runtime_tools() - if not self._cache: + cache = messages if messages is not None else self._cache + if not cache: logger.warning( "AgentExecutor %s: Running agent with empty message cache. " "This could lead to service error for some LLM providers.", @@ -801,7 +843,7 @@ async def _run_agent(self, ctx: WorkflowContext[Never, AgentResponse]) -> AgentR } if tools is not None and self._accepts_runtime_tools: run_kwargs["tools"] = tools - response = await run_agent(self._cache, **run_kwargs) + response = await run_agent(cache, **run_kwargs) # Handle any user input requests if response.user_input_requests: @@ -826,11 +868,19 @@ async def _run_agent(self, ctx: WorkflowContext[Never, AgentResponse]) -> AgentR await ctx.yield_output(response) return response - async def _run_agent_streaming(self, ctx: WorkflowContext[Never, AgentResponseUpdate]) -> AgentResponse | None: + async def _run_agent_streaming( + self, + ctx: WorkflowContext[Never, AgentResponseUpdate], + *, + messages: list[Message] | None = None, + ) -> AgentResponse | None: """Execute the underlying agent in streaming mode and collect the full response. Args: ctx: The workflow context for emitting events. + messages: Invocation-only message list. If provided, used instead + of ``self._cache`` so the synthetic trailing user turn does + not persist in the cache. Returns: The complete AgentResponse, or None if waiting for user input. @@ -840,7 +890,8 @@ async def _run_agent_streaming(self, ctx: WorkflowContext[Never, AgentResponseUp function_invocation_kwargs, client_kwargs = self._prepare_agent_run_args(raw_run_kwargs, resolved_run_kwargs) tools = ctx.get_runtime_tools() - if not self._cache: + cache = messages if messages is not None else self._cache + if not cache: logger.warning( "AgentExecutor %s: Running agent with empty message cache. " "This could lead to service error for some LLM providers.", @@ -859,7 +910,7 @@ async def _run_agent_streaming(self, ctx: WorkflowContext[Never, AgentResponseUp } if tools is not None and self._accepts_runtime_tools: run_kwargs["tools"] = tools - stream = run_agent_stream(self._cache, **run_kwargs) + stream = run_agent_stream(cache, **run_kwargs) async for update in stream: updates.append(update) if any(content.type == "computer_tool_call" and content.user_input_request for content in update.contents): diff --git a/python/packages/core/agent_framework/_workflows/_functional.py b/python/packages/core/agent_framework/_workflows/_functional.py index 0408e021ca1..719e21f0073 100644 --- a/python/packages/core/agent_framework/_workflows/_functional.py +++ b/python/packages/core/agent_framework/_workflows/_functional.py @@ -47,12 +47,13 @@ import json import logging import math +import sys import typing from collections.abc import AsyncIterable, Awaitable, Callable, Iterable, Mapping, Sequence from contextvars import Context, ContextVar from copy import deepcopy from types import CodeType -from typing import Any, Generic, Literal, TypeVar, overload +from typing import Any, Generic, Literal, TypeVar, cast, overload from .._agents import BaseAgent from .._feature_stage import ExperimentalFeature, experimental @@ -101,15 +102,33 @@ def _create_task( coro: Any, **kwargs: Any, ) -> asyncio.Future[Any]: - if self.original_factory is None: - task = asyncio.Task(coro, loop=loop, **kwargs) - else: - task = self.original_factory(loop, coro, **kwargs) - + parent_task = asyncio.current_task(loop=loop) task_context = kwargs.get("context") ctx = task_context.get(_active_run_ctx) if isinstance(task_context, Context) else _active_run_ctx.get() - if ctx is not None: + if ctx is None: + if self.original_factory is None: + return asyncio.Task(coro, loop=loop, **kwargs) + return self.original_factory(loop, coro, **kwargs) + + def _register(task: asyncio.Future[Any]) -> None: ctx._workflow_tasks.add(task) + ctx._workflow_task_parents[task] = parent_task + if parent_task in ctx._pause_owned_tasks: + ctx._pause_owned_tasks.add(task) + if ctx._workflow_interruption is not None and parent_task in ctx._active_step_tasks: + ctx._pause_step_entry_tasks.add(task) + + async def _tracked_coro() -> Any: + current_task = asyncio.current_task() + if current_task is not None: + _register(current_task) + return await coro + + if self.original_factory is None: + task = asyncio.Task(_tracked_coro(), loop=loop, **kwargs) + else: + task = self.original_factory(loop, _tracked_coro(), **kwargs) + _register(task) return task @@ -410,6 +429,105 @@ def _snapshot_replayed_step_cache_value(value: Any) -> Any: raise ValueError("@step result cannot be safely copied for replay.") +def _prepare_workflow_state_snapshot( + value: Any, + memo: dict[int, Any], + seen: dict[int, bool], + *, + hash_required: bool = False, +) -> None: + """Pre-register non-copyable leaves before standard deepcopy.""" + value_id = id(value) + if value_id in memo: + if hash_required: + try: + hash(memo[value_id]) + except Exception: + memo[value_id] = value + return + previous_requirement = seen.get(value_id) + if previous_requirement is True or (previous_requirement is False and not hash_required): + return + seen[value_id] = hash_required or bool(previous_requirement) + + if isinstance(value, dict): + for key, item in cast(dict[Any, Any], value).items(): + _prepare_workflow_state_snapshot(key, memo, seen, hash_required=True) + _prepare_workflow_state_snapshot(item, memo, seen) + if type(cast(Any, value)) is dict: + return + + if isinstance(value, list): + for item in cast(list[Any], value): + _prepare_workflow_state_snapshot(item, memo, seen) + if type(cast(Any, value)) is list: + return + + if isinstance(value, tuple): + for item in cast(tuple[Any, ...], value): + _prepare_workflow_state_snapshot(item, memo, seen, hash_required=hash_required) + if type(cast(Any, value)) is tuple: + return + if isinstance(value, set): + for item in cast(set[Any], value): + _prepare_workflow_state_snapshot(item, memo, seen, hash_required=True) + if type(cast(Any, value)) is set: + return + if isinstance(value, frozenset): + for item in cast(frozenset[Any], value): + _prepare_workflow_state_snapshot(item, memo, seen, hash_required=True) + if type(cast(Any, value)) is frozenset: + return + + value_any = cast(Any, value) + if getattr(value_any.__class__, "__deepcopy__", None) is None: + has_object_state = False + object_dict = getattr(cast(Any, value), "__dict__", None) + if isinstance(object_dict, dict): + has_object_state = True + for item in cast(dict[str, Any], object_dict).values(): + _prepare_workflow_state_snapshot(item, memo, seen) + + for cls in value_any.__class__.__mro__: + raw_slots = cls.__dict__.get("__slots__", ()) + slots = (raw_slots,) if isinstance(raw_slots, str) else raw_slots + for raw_slot in slots: + if raw_slot in ("__dict__", "__weakref__"): + continue + slot = ( + f"_{cls.__name__.lstrip('_')}{raw_slot}" + if raw_slot.startswith("__") and not raw_slot.endswith("__") + else raw_slot + ) + try: + item = getattr(cast(Any, value), slot) + except AttributeError: + continue + has_object_state = True + _prepare_workflow_state_snapshot(item, memo, seen) + + if has_object_state: + return + + candidate_memo = dict(memo) + try: + snapshot: Any = deepcopy(value_any, candidate_memo) + if hash_required: + hash(snapshot) + except Exception: + memo[value_id] = value + else: + memo.update(candidate_memo) + + +def _snapshot_workflow_state(state: Mapping[str, Any]) -> dict[str, Any]: + """Snapshot state while retaining only specific non-copyable leaves.""" + state_dict = dict(state) + memo: dict[int, Any] = {} + _prepare_workflow_state_snapshot(state_dict, memo, {}) + return deepcopy(state_dict, memo) + + @experimental(feature_id=ExperimentalFeature.FUNCTIONAL_WORKFLOWS) def get_run_context() -> RunContext | None: """Return the active :class:`RunContext`, or ``None`` if not inside a ``@workflow``. @@ -426,12 +544,24 @@ def get_run_context() -> RunContext | None: # --------------------------------------------------------------------------- -class WorkflowInterrupted(BaseException): +if sys.version_info >= (3, 11): + + class _WorkflowInterruptedBase(asyncio.CancelledError): + pass + +else: + + class _WorkflowInterruptedBase(BaseException): + pass + + +class WorkflowInterrupted(_WorkflowInterruptedBase): """Internal: raised when request_info() is called during initial execution. - Inherits from ``BaseException`` (not ``Exception``) so that user code - with ``except Exception:`` handlers inside a ``@workflow`` function does - not accidentally intercept the HITL interruption signal. + On Python 3.11+, the signal is cancellation-shaped so ``TaskGroup`` does + not cancel sibling tasks. Python 3.10 retains the original ``BaseException`` + behavior because ``gather`` normalizes cancellation subclasses there. + User code with ``except Exception:`` handlers does not intercept either form. """ def __init__(self, request_id: str, request_data: Any, response_type: type) -> None: @@ -441,6 +571,45 @@ def __init__(self, request_id: str, request_data: Any, response_type: type) -> N super().__init__(f"Workflow interrupted by request_info (request_id={request_id})") +def _get_workflow_interruption(exc: BaseException) -> WorkflowInterrupted | None: + """Return an interruption when every leaf in *exc* is an internal interruption.""" + if isinstance(exc, WorkflowInterrupted): + return exc + if type(exc).__name__ not in ("ExceptionGroup", "BaseExceptionGroup"): + return None + + nested = getattr(exc, "exceptions", ()) + if not nested: + return None + + first: WorkflowInterrupted | None = None + for child in nested: + interruption = _get_workflow_interruption(child) + if interruption is None: + return None + if first is None: + first = interruption + return first + + +def _split_workflow_interruption( + exc: BaseException, +) -> tuple[WorkflowInterrupted | None, BaseException | None]: + """Separate internal workflow interruptions from any real failures.""" + if isinstance(exc, WorkflowInterrupted): + return exc, None + if type(exc).__name__ not in ("ExceptionGroup", "BaseExceptionGroup"): + return None, exc + + split = getattr(exc, "split", None) + if split is None: + return None, exc + interruptions, remaining = split(WorkflowInterrupted) + if interruptions is None: + return None, exc + return _get_workflow_interruption(interruptions), remaining + + # --------------------------------------------------------------------------- # RunContext # --------------------------------------------------------------------------- @@ -525,8 +694,35 @@ def __init__( self._used_explicit_step_cache_keys: set[str] = set() # Tasks created while this workflow context is active. self._workflow_tasks: set[asyncio.Future[Any]] = set() + # Tasks explicitly cancelled by framework cleanup. + self._framework_cancelled_tasks: set[asyncio.Future[Any]] = set() + # Parent task for each tracked workflow task. + self._workflow_task_parents: dict[asyncio.Future[Any], asyncio.Task[Any] | None] = {} + # Tasks that have entered at least one @step wrapper. + self._step_tasks: set[asyncio.Task[Any]] = set() + # Newly spawned pause-owned tasks allowed to enter their first @step. + self._pause_step_entry_tasks: set[asyncio.Future[Any]] = set() + # Reference counts for tasks currently executing one or more nested @steps. + self._active_step_tasks: dict[asyncio.Task[Any], int] = {} + # Task ownership tree rooted at steps active when request_info interrupted. + self._pause_owned_tasks: set[asyncio.Future[Any]] = set() + # Pause-owned tasks whose errors can be masked by the internal interruption. + self._pause_failure_boundaries: set[asyncio.Future[Any]] = set() + # Concurrency waiter responsible for each pause failure boundary. + self._pause_boundary_waiters: dict[asyncio.Future[Any], asyncio.Future[Any]] = {} + # Adapter future to task whose interruption caused its cancellation. + self._pause_adapter_sources: dict[asyncio.Future[Any], asyncio.Task[Any]] = {} + # Waiter the root workflow task was blocked on when request_info interrupted. + self._pause_root_waiter: asyncio.Future[Any] | None = None + # First internal interruption raised during this run, even if user concurrency swallows it. + self._workflow_interruption: WorkflowInterrupted | None = None + # First internal interruption raised in each task. + self._task_interruptions: dict[asyncio.Task[Any], WorkflowInterrupted] = {} # The task executing the workflow body; gather/task-group children differ from this task. self._root_task: asyncio.Task[Any] | None = None + # Exact source location suspended when request_info interrupted. + self._pause_origin_code: CodeType | None = None + self._pause_origin_lineno: int | None = None # Deterministic call counter for auto-generated request_info IDs self._auto_request_info_index: int = 0 @@ -581,6 +777,7 @@ async def request_info( WorkflowInterrupted: Raised internally on initial execution (not visible to workflow authors). """ + self._raise_if_current_task_interrupted() if request_id is None: # Deterministic id; same determinism contract as @step caching. rid = f"auto::{self._auto_request_info_index}" @@ -596,6 +793,8 @@ async def request_info( value = _coerce_request_info_response(value, response_type, rid) return value + self._state = _snapshot_workflow_state(self._state) + # No response — emit event and interrupt event = WorkflowEvent.request_info( request_id=rid, @@ -605,7 +804,18 @@ async def request_info( ) await self.add_event(event) self._pending_requests[rid] = event - raise WorkflowInterrupted(rid, request_data, response_type) + self._pause_owned_tasks.update(self._active_step_tasks) + self._pause_failure_boundaries.update(self._active_step_tasks) + self._capture_pause_waiter_tasks() + self._capture_root_pause_location() + self._expand_pause_owned_tasks() + interruption = WorkflowInterrupted(rid, request_data, response_type) + if self._workflow_interruption is None: + self._workflow_interruption = interruption + current_task = asyncio.current_task() + if current_task is not None: + self._task_interruptions[current_task] = interruption + raise interruption async def add_event(self, event: WorkflowEvent[Any]) -> None: """Add a custom event to the workflow event stream. @@ -616,6 +826,7 @@ async def add_event(self, event: WorkflowEvent[Any]) -> None: Args: event: The workflow event to append. """ + self._raise_if_current_task_interrupted() self._events.append(event) def get_state(self, key: str, default: Any = None) -> Any: @@ -631,6 +842,7 @@ def get_state(self, key: str, default: Any = None) -> Any: Returns: The stored value, or *default* if the key does not exist. """ + self._raise_if_current_task_interrupted() return self._state.get(key, default) def set_state(self, key: str, value: Any) -> None: @@ -650,6 +862,7 @@ def set_state(self, key: str, value: Any) -> None: ValueError: If *key* begins with ``_`` (reserved for framework bookkeeping). """ + self._raise_if_current_task_interrupted() if key.startswith("_"): raise ValueError( f"State key {key!r} starts with '_', which is reserved for " @@ -674,6 +887,305 @@ def is_streaming(self) -> bool: def _get_events(self) -> list[WorkflowEvent[Any]]: return list(self._events) + def _raise_if_current_task_interrupted(self, *, entering_step: bool = False) -> None: + """Stop framework work after the current task has requested a pause.""" + current_task = asyncio.current_task() + if current_task is not None and (interruption := self._task_interruptions.get(current_task)) is not None: + raise interruption + if self._workflow_interruption is not None and ( + current_task not in self._pause_owned_tasks + or (entering_step and current_task in self._step_tasks) + or (entering_step and current_task not in self._pause_step_entry_tasks) + or (not entering_step and current_task not in self._active_step_tasks) + ): + raise self._workflow_interruption + + def _expand_pause_owned_tasks(self) -> None: + """Include tracked descendants of tasks already owned by pause settlement.""" + while True: + owned_count = len(self._pause_owned_tasks) + self._pause_owned_tasks.update( + task for task, parent in self._workflow_task_parents.items() if parent in self._pause_owned_tasks + ) + if len(self._pause_owned_tasks) == owned_count: + return + + def _capture_waiter_tree(self, waiter: Any, seen: set[asyncio.Future[Any]]) -> None: + """Include gather children reachable through awaited task wrappers.""" + if not isinstance(waiter, asyncio.Future): + return + typed_waiter = cast(asyncio.Future[Any], waiter) + if typed_waiter in seen: + return + seen.add(typed_waiter) + children = cast(Iterable[Any], getattr(cast(Any, waiter), "_children", ())) + for task in children: + if isinstance(task, asyncio.Future): + child = cast(asyncio.Future[Any], task) + self._pause_owned_tasks.add(child) + self._pause_failure_boundaries.add(child) + self._pause_boundary_waiters[child] = typed_waiter + self._capture_waiter_tree(getattr(cast(Any, waiter), "_fut_waiter", None), seen) + + def _capture_waiter_children(self, owner: asyncio.Future[Any] | None) -> None: + """Include concurrency children reachable from the waiter awaited by *owner*.""" + self._capture_waiter_tree(getattr(owner, "_fut_waiter", None), set()) + + def _capture_gather_callback_children(self, task: asyncio.Task[Any] | None) -> None: + """Include gather siblings exposed by a child task's done callback.""" + callbacks = cast(list[Any], getattr(cast(Any, task), "_callbacks", ()) or ()) + for entry in callbacks: + raw_callback = cast(Any, entry[0] if isinstance(entry, tuple) else entry) + if not callable(raw_callback): + continue + callback = cast(Callable[..., Any], raw_callback) + if getattr(callback, "__qualname__", "") != "gather.._done_callback": + continue + try: + closure = inspect.getclosurevars(callback).nonlocals + except (TypeError, ValueError): + continue + outer = closure.get("outer") + children = closure.get("children", ()) + if not isinstance(outer, asyncio.Future): + continue + typed_outer = cast(asyncio.Future[Any], outer) + for child in cast(Iterable[Any], children): + if isinstance(child, asyncio.Future): + typed_child = cast(asyncio.Future[Any], child) + self._pause_owned_tasks.add(typed_child) + self._pause_failure_boundaries.add(typed_child) + self._pause_boundary_waiters[typed_child] = typed_outer + + def _capture_shield_adapters(self, task: asyncio.Task[Any] | None) -> None: + """Record shield futures linked to the currently interrupting task.""" + if task is None: + return + source: asyncio.Future[Any] = task + seen: set[int] = set() + while id(source) not in seen: + seen.add(id(source)) + callbacks = cast(list[Any], getattr(cast(Any, source), "_callbacks", ()) or ()) + outer: asyncio.Future[Any] | None = None + for entry in callbacks: + raw_callback = cast(Any, entry[0] if isinstance(entry, tuple) else entry) + if not callable(raw_callback): + continue + callback = cast(Callable[..., Any], raw_callback) + if getattr(callback, "__qualname__", "") != "shield.._inner_done_callback": + continue + try: + closure = inspect.getclosurevars(callback).nonlocals + except (TypeError, ValueError): + continue + candidate = closure.get("outer") + if isinstance(candidate, asyncio.Future): + outer = cast(asyncio.Future[Any], candidate) + break + if outer is None: + return + self._pause_owned_tasks.add(outer) + self._pause_failure_boundaries.add(outer) + self._pause_adapter_sources[outer] = task + source = outer + + def _capture_pause_waiter_tasks(self) -> None: + """Capture root and active-step concurrency children at the pause boundary.""" + root_waiter = getattr(self._root_task, "_fut_waiter", None) + if isinstance(root_waiter, asyncio.Future): + self._pause_root_waiter = cast(asyncio.Future[Any], root_waiter) + current_task = asyncio.current_task() + self._capture_shield_adapters(current_task) + self._capture_gather_callback_children(current_task) + self._capture_waiter_children(self._root_task) + for task in tuple(self._active_step_tasks): + self._capture_waiter_children(task) + + def _pause_boundary_was_handled(self, task: asyncio.Future[Any]) -> bool: + """Return whether the boundary's concurrency waiter handled child exceptions.""" + waiter = self._pause_boundary_waiters.get(task) + if waiter is None or not waiter.done() or waiter.cancelled(): + return False + return waiter.exception() is None + + def _pause_root_waiter_was_handled(self) -> bool: + waiter = self._pause_root_waiter + if waiter is None or not waiter.done() or waiter.cancelled(): + return False + return waiter.exception() is None + + def _capture_root_pause_location(self) -> None: + if asyncio.current_task() is self._root_task: + frame = inspect.currentframe() + while frame is not None: + if frame.f_code.co_filename != __file__: + self._pause_origin_code = frame.f_code + self._pause_origin_lineno = frame.f_lineno + return + frame = frame.f_back + return + + awaited: Any = self._root_task.get_coro() if self._root_task is not None else None + seen: set[int] = set() + candidate: tuple[CodeType, int] | None = None + while awaited is not None and id(awaited) not in seen: + seen.add(id(awaited)) + awaited_frame = getattr(awaited, "cr_frame", None) or getattr(awaited, "gi_frame", None) + if awaited_frame is not None and awaited_frame.f_code.co_filename != __file__: + candidate = (awaited_frame.f_code, awaited_frame.f_lineno) + awaited = getattr(awaited, "cr_await", None) or getattr(awaited, "gi_yieldfrom", None) + if candidate is not None: + self._pause_origin_code, self._pause_origin_lineno = candidate + + def _cancelled_at_root_pause_location(self, exc: BaseException) -> bool: + code = self._pause_origin_code + lineno = self._pause_origin_lineno + traceback = exc.__traceback__ + while code is not None and lineno is not None and traceback is not None: + if traceback.tb_frame.f_code is code and traceback.tb_lineno == lineno: + return True + traceback = traceback.tb_next + return False + + def _get_new_descendant_interruption( + self, + ancestor: asyncio.Task[Any] | None, + previous: Mapping[asyncio.Task[Any], WorkflowInterrupted], + ) -> WorkflowInterrupted | None: + """Return a newly raised interruption from *ancestor* or one of its descendants.""" + if ancestor is None: + return None + for task, interruption in self._task_interruptions.items(): + if previous.get(task) is interruption: + continue + current: asyncio.Future[Any] | None = task + while current is not None: + if current is ancestor: + return interruption + current = self._workflow_task_parents.get(current) + return None + + async def _cancel_workflow_tasks(self) -> None: + """Cancel and drain all tracked workflow tasks.""" + current_task = asyncio.current_task() + while pending := [task for task in self._workflow_tasks if task is not current_task and not task.done()]: + waiting_for_existing_cancellation = False + for task in pending: + if task in self._framework_cancelled_tasks: + continue + if self._has_pending_cancellation(task): + waiting_for_existing_cancellation = True + continue + self._cancel_workflow_task(task) + if waiting_for_existing_cancellation: + await asyncio.sleep(0) + continue + await asyncio.gather(*pending, return_exceptions=True) + tasks = [task for task in self._workflow_tasks if task is not current_task] + if tasks: + await asyncio.gather(*tasks, return_exceptions=True) + + @staticmethod + def _has_pending_cancellation(task: asyncio.Future[Any]) -> bool: + waiter = getattr(task, "_fut_waiter", None) + return (isinstance(waiter, asyncio.Future) and waiter.cancelled()) or bool(getattr(task, "_must_cancel", False)) + + def _cancel_workflow_task(self, task: asyncio.Future[Any]) -> None: + """Record and request framework-owned task cancellation.""" + if task.done() or task in self._framework_cancelled_tasks or self._has_pending_cancellation(task): + return + self._framework_cancelled_tasks.add(task) + task.cancel() + + async def _settle_workflow_tasks( + self, + *, + propagate_failures: bool, + interruption: WorkflowInterrupted, + ) -> None: + """Wait for pause-associated steps, then cancel and drain detached tasks.""" + current_task = asyncio.current_task() + settled_tasks = self._pause_owned_tasks + inspected_tasks: set[asyncio.Future[Any]] = set() + + def _pending_owned_tasks() -> list[asyncio.Future[Any]]: + self._expand_pause_owned_tasks() + pending: list[asyncio.Future[Any]] = [] + for task in settled_tasks: + if task is current_task or task is self._root_task or task.done(): + continue + parent = self._workflow_task_parents.get(task) + if task in self._pause_failure_boundaries or (parent is not None and not parent.done()): + pending.append(task) + return pending + + def _raise_completed_failure() -> None: + for task in settled_tasks: + if task in inspected_tasks or not task.done(): + continue + if task is current_task or task is self._root_task: + inspected_tasks.add(task) + continue + if task.cancelled(): + inspected_tasks.add(task) + if task in self._framework_cancelled_tasks: + continue + adapter_source = self._pause_adapter_sources.get(task) + if ( + adapter_source is not None + and self._get_new_descendant_interruption(adapter_source, {}) is interruption + ): + continue + try: + task.result() + except WorkflowInterrupted: + continue + except asyncio.CancelledError as exc: + cancelling = getattr(task, "cancelling", None) + cancelling_count = cast(Callable[[], int], cancelling)() if callable(cancelling) else 0 + if ( + sys.version_info >= (3, 11) + and cancelling_count == 0 + and not exc.args + and self._get_new_descendant_interruption(cast(asyncio.Task[Any], task), {}) is interruption + ): + continue + raise + if task in self._pause_failure_boundaries: + if self._pause_boundary_was_handled(task): + inspected_tasks.add(task) + continue + else: + if not getattr(task, "_log_traceback", False): + inspected_tasks.add(task) + continue + parent = self._workflow_task_parents.get(task) + if parent is not None and not parent.done(): + continue + inspected_tasks.add(task) + error = task.exception() + if error is not None: + _, remaining = _split_workflow_interruption(error) + if remaining is not None: + raise remaining from None + + try: + while True: + if propagate_failures: + _raise_completed_failure() + pending = _pending_owned_tasks() + if not pending: + break + await asyncio.wait(pending, return_when=asyncio.FIRST_COMPLETED) + if propagate_failures: + _raise_completed_failure() + await self._cancel_workflow_tasks() + if propagate_failures: + _raise_completed_failure() + except BaseException: + await self._cancel_workflow_tasks() + raise + def _get_legacy_step_cache_key(self, step_name: str) -> str: idx = self._step_call_counters.get(step_name, 0) self._step_call_counters[step_name] = idx + 1 @@ -999,6 +1511,11 @@ async def __call__(self, *args: Any, **kwargs: Any) -> R: if ctx is None: # Outside a workflow — pass through directly return await self._func(*args, **kwargs) + step_task = asyncio.current_task() + ctx._raise_if_current_task_interrupted(entering_step=True) + if step_task is not None: + ctx._step_tasks.add(step_task) + ctx._pause_step_entry_tasks.discard(step_task) legacy_cache_key = ctx._get_legacy_step_cache_key(self.name) cache_key = legacy_cache_key @@ -1035,47 +1552,61 @@ async def __call__(self, *args: Any, **kwargs: Any) -> R: "Use @step(replay_key=...) to identify each logical invocation." ) - # Inject RunContext if the step function declares it - call_args, call_kwargs = self._build_call_args_with_ctx(ctx, args, kwargs) - - # Defensive deepcopy for the event log only; fall back to the live - # reference so non-deepcopyable args (locks, sockets) don't fail. - if args or kwargs: - try: - invocation_data: Any = deepcopy({"args": args, "kwargs": kwargs}) - except Exception: - invocation_data = {"args": args, "kwargs": kwargs} - else: - invocation_data = None - await ctx.add_event(WorkflowEvent.executor_invoked(self.name, invocation_data)) - auto_request_info_index_before = ctx._auto_request_info_index + task_interruptions_before = dict(ctx._task_interruptions) + if step_task is not None: + ctx._active_step_tasks[step_task] = ctx._active_step_tasks.get(step_task, 0) + 1 try: - result = await self._func(*call_args, **call_kwargs) - except Exception as exc: - # NOTE: WorkflowInterrupted (from request_info inside a step) inherits - # from BaseException, NOT Exception, so it propagates past this handler - # without emitting a spurious executor_failed event. This is intentional - # — request_info is fully supported inside @step functions. - from ..observability import OBSERVABILITY_SETTINGS + # Inject RunContext if the step function declares it + call_args, call_kwargs = self._build_call_args_with_ctx(ctx, args, kwargs) + + # Defensive deepcopy for the event log only; fall back to the live + # reference so non-deepcopyable args (locks, sockets) don't fail. + if args or kwargs: + try: + invocation_data: Any = deepcopy({"args": args, "kwargs": kwargs}) + except Exception: + invocation_data = {"args": args, "kwargs": kwargs} + else: + invocation_data = None + await ctx.add_event(WorkflowEvent.executor_invoked(self.name, invocation_data)) + auto_request_info_index_before = ctx._auto_request_info_index + try: + result = await self._func(*call_args, **call_kwargs) + except Exception as exc: + # NOTE: WorkflowInterrupted (from request_info inside a step) inherits + # from BaseException, NOT Exception, so it propagates past this handler + # without emitting a spurious executor_failed event. This is intentional + # — request_info is fully supported inside @step functions. + from ..observability import OBSERVABILITY_SETTINGS - details = WorkflowErrorDetails.from_exception( - exc, - include_sensitive_data=OBSERVABILITY_SETTINGS.SENSITIVE_DATA_ENABLED, + details = WorkflowErrorDetails.from_exception( + exc, + include_sensitive_data=OBSERVABILITY_SETTINGS.SENSITIVE_DATA_ENABLED, + ) + await ctx.add_event(WorkflowEvent.executor_failed(self.name, details)) + raise + task_interruption = ctx._get_new_descendant_interruption(step_task, task_interruptions_before) + if task_interruption is not None: + raise task_interruption + ctx._set_cached_step_auto_request_info_count( + cache_key, + ctx._auto_request_info_index - auto_request_info_index_before, ) - await ctx.add_event(WorkflowEvent.executor_failed(self.name, details)) - raise - ctx._set_cached_step_auto_request_info_count( - cache_key, - ctx._auto_request_info_index - auto_request_info_index_before, - ) - copied, cached_result = _try_snapshot_step_cache_value(result) - identity_is_replayable = self._replay_key is not None or self._wrapper_identity_is_durable - ctx._set_cached_result(cache_key, cached_result, replayable=copied and identity_is_replayable) - _, event_data = _try_snapshot_step_cache_value(result) - await ctx.add_event(WorkflowEvent.executor_completed(self.name, event_data)) - if ctx._on_step_completed is not None: - await ctx._on_step_completed() - return result + copied, cached_result = _try_snapshot_step_cache_value(result) + identity_is_replayable = self._replay_key is not None or self._wrapper_identity_is_durable + ctx._set_cached_result(cache_key, cached_result, replayable=copied and identity_is_replayable) + _, event_data = _try_snapshot_step_cache_value(result) + await ctx.add_event(WorkflowEvent.executor_completed(self.name, event_data)) + if ctx._on_step_completed is not None: + await ctx._on_step_completed() + return result + finally: + if step_task is not None: + remaining_depth = ctx._active_step_tasks[step_task] - 1 + if remaining_depth: + ctx._active_step_tasks[step_task] = remaining_depth + else: + del ctx._active_step_tasks[step_task] # --------------------------------------------------------------------------- @@ -1740,7 +2271,6 @@ async def _execute(self, ctx: RunContext, message: Any) -> Any: ) token = _active_run_ctx.set(ctx) - ctx._root_task = asyncio.current_task() release_task_tracking = _track_workflow_tasks() try: sig = inspect.signature(self._func) @@ -1775,7 +2305,62 @@ async def _execute(self, ctx: RunContext, message: Any) -> Any: call_args.append(message) message_injected = True - return await self._func(*call_args) + root_task_ready = asyncio.Event() + + async def _invoke_workflow() -> Any: + await root_task_ready.wait() + return await self._func(*call_args) + + workflow_task = asyncio.create_task(_invoke_workflow()) + ctx._root_task = workflow_task + root_task_ready.set() + try: + await asyncio.wait({workflow_task}) + except BaseException: + ctx._cancel_workflow_task(workflow_task) + await asyncio.gather(workflow_task, return_exceptions=True) + await ctx._cancel_workflow_tasks() + raise + + try: + result = workflow_task.result() + except BaseException as exc: + interruption, remaining = _split_workflow_interruption(exc) + if ( + interruption is None + and isinstance(exc, asyncio.CancelledError) + and not exc.args + and ctx._workflow_interruption is not None + and not ctx._pause_root_waiter_was_handled() + and ctx._cancelled_at_root_pause_location(exc) + and sys.version_info >= (3, 11) + and workflow_task.cancelling() == 0 + ): + await ctx._settle_workflow_tasks( + propagate_failures=True, + interruption=ctx._workflow_interruption, + ) + raise ctx._workflow_interruption from None + if interruption is None: + await ctx._cancel_workflow_tasks() + raise + if remaining is not None: + await ctx._cancel_workflow_tasks() + raise remaining from None + await ctx._settle_workflow_tasks( + propagate_failures=True, + interruption=interruption, + ) + if isinstance(exc, WorkflowInterrupted): + raise + raise interruption from None + if ctx._workflow_interruption is not None: + await ctx._settle_workflow_tasks( + propagate_failures=True, + interruption=ctx._workflow_interruption, + ) + raise ctx._workflow_interruption + return result finally: release_task_tracking() _active_run_ctx.reset(token) diff --git a/python/packages/core/agent_framework/_workflows/_typing_utils.py b/python/packages/core/agent_framework/_workflows/_typing_utils.py index f0509da9a16..ad41201d04d 100644 --- a/python/packages/core/agent_framework/_workflows/_typing_utils.py +++ b/python/packages/core/agent_framework/_workflows/_typing_utils.py @@ -492,6 +492,21 @@ def is_type_compatible(source_type: type | UnionType | Any, target_type: type | if target_origin is not None and not target_args and isinstance(target_origin, type): target_type, target_origin = target_origin, None + # Case 1b: source is Literal[...] - it only holds its listed values, so it is compatible when every value fits + # the target or one of its union members: a Literal member by value (is_instance_of), any other member through + # the value's own type. + if source_origin is Literal: + targets = target_args if target_origin is Union or target_origin is UnionType else (target_type,) + return all( + any( + is_instance_of(value, target) + if get_origin(target) is Literal + else is_type_compatible(type(value), target) + for target in targets + ) + for value in cast(tuple[object, ...], source_args) + ) + # Case 2: target is Union/Optional - source is compatible if it matches any target member if target_origin is Union or target_origin is UnionType: # Special case: if source is also a Union, check that each source member diff --git a/python/packages/core/agent_framework/ag_ui/__init__.py b/python/packages/core/agent_framework/ag_ui/__init__.py index 3ec2375b247..fee50b301e9 100644 --- a/python/packages/core/agent_framework/ag_ui/__init__.py +++ b/python/packages/core/agent_framework/ag_ui/__init__.py @@ -13,6 +13,7 @@ - AGUIHttpService - AGUIThreadSnapshot - AGUIThreadSnapshotStore +- AuthorizationScopeResolver - InMemoryAGUIThreadSnapshotStore - SnapshotScopeResolver - add_agent_framework_fastapi_endpoint @@ -37,6 +38,7 @@ "AGUIHttpService", "AGUIThreadSnapshot", "AGUIThreadSnapshotStore", + "AuthorizationScopeResolver", "InMemoryAGUIThreadSnapshotStore", "SnapshotScopeResolver", "state_carrier", diff --git a/python/packages/core/agent_framework/ag_ui/__init__.pyi b/python/packages/core/agent_framework/ag_ui/__init__.pyi index 794aeae4a58..b51730743e5 100644 --- a/python/packages/core/agent_framework/ag_ui/__init__.pyi +++ b/python/packages/core/agent_framework/ag_ui/__init__.pyi @@ -8,6 +8,7 @@ from agent_framework_ag_ui import ( AGUIHttpService, AGUIThreadSnapshot, AGUIThreadSnapshotStore, + AuthorizationScopeResolver, InMemoryAGUIThreadSnapshotStore, SnapshotScopeResolver, __version__, @@ -25,6 +26,7 @@ __all__ = [ "AGUIThreadSnapshotStore", "AgentFrameworkAgent", "AgentFrameworkWorkflow", + "AuthorizationScopeResolver", "InMemoryAGUIThreadSnapshotStore", "SnapshotScopeResolver", "__version__", diff --git a/python/packages/core/agent_framework/security.py b/python/packages/core/agent_framework/security.py index 3a331f7436c..acc7fbbb81f 100644 --- a/python/packages/core/agent_framework/security.py +++ b/python/packages/core/agent_framework/security.py @@ -4347,7 +4347,7 @@ def _map_mcp_annotations_to_labels( if annotations is None: return (default_integrity, ConfidentialityLabel.PUBLIC, False) - open_world: bool | None = getattr(annotations, "openWorldHint", None) + open_world: bool | None = getattr(annotations, "open_world_hint", None) integrity = default_integrity if open_world is True: integrity = IntegrityLabel.UNTRUSTED @@ -4431,7 +4431,7 @@ async def apply_mcp_security_labels( Args: mcp_tool: A connected ``MCPTool`` instance (``MCPStdioTool``, - ``MCPStreamableHTTPTool``, ``MCPWebsocketTool``). + ``MCPStreamableHTTPTool``). default_integrity: Integrity label to assign when the server provides no annotations. Defaults to ``UNTRUSTED`` (conservative). annotation_overrides: Optional per-tool-name overrides. Keys are @@ -4467,21 +4467,19 @@ async def apply_mcp_security_labels( "MCPTool is not connected. Call connect() or use 'async with' before applying security labels." ) - session = getattr(mcp_tool, "session", None) - if session is None: - raise RuntimeError("MCPTool has no active session.") + connection = mcp_tool._require_connection() from mcp import types as mcp_types annotation_map: dict[str, Any] = {} params: mcp_types.PaginatedRequestParams | None = None while True: - tool_list = await session.list_tools(params=params) + tool_list = await connection.list_tools_page(params) for remote_tool in tool_list.tools: annotation_map[remote_tool.name] = remote_tool.annotations - if not tool_list.nextCursor: + if not tool_list.next_cursor: break - params = mcp_types.PaginatedRequestParams(cursor=tool_list.nextCursor) + params = mcp_types.PaginatedRequestParams(cursor=tool_list.next_cursor) loaded_functions = getattr(mcp_tool, "_functions", None) if not isinstance(loaded_functions, list): @@ -4637,7 +4635,7 @@ class SecureMCPToolProxy: There are two ways to create a proxy: - 1. **Wrap an existing MCPTool** (local binary, WebSocket, or HTTP):: + 1. **Wrap an existing MCPTool** (local binary or Streamable HTTP):: async with SecureMCPToolProxy( MCPStdioTool(name="github", command="gh-mcp", args=["stdio"]) diff --git a/python/packages/core/pyproject.toml b/python/packages/core/pyproject.toml index a4ab3eb4906..b5132f3b831 100644 --- a/python/packages/core/pyproject.toml +++ b/python/packages/core/pyproject.toml @@ -4,7 +4,7 @@ description = "Microsoft Agent Framework for building AI Agents with Python. Thi authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.21.0" +version = "1.22.0" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -35,36 +35,37 @@ dependencies = [ [project.optional-dependencies] all = [ - "mcp>=1.24.0,<2", - "agent-framework-a2a>=1.0.0b261002,<2", - "agent-framework-ag-ui>=1.5.1,<2", - "agent-framework-anthropic>=1.0.0b261008,<2", - "agent-framework-azure-ai-search>=1.0.0b261002,<2", - "agent-framework-azure-contentunderstanding>=1.0.0b261008,<2", - "agent-framework-azure-cosmos>=1.0.0b261002,<2", + "mcp>=2.2.0,<3", + "tenacity>=9.1.4,<9.2.0", + "agent-framework-a2a>=1.0.0b261015,<2", + "agent-framework-ag-ui>=1.6.0,<2", + "agent-framework-anthropic>=1.0.0b261015,<2", + "agent-framework-azure-ai-search>=1.0.0b261015,<2", + "agent-framework-azure-contentunderstanding>=1.0.0b261015,<2", + "agent-framework-azure-cosmos>=1.0.0b261015,<2", "agent-framework-azurefunctions>=1.0.0b260922,<2", - "agent-framework-bedrock>=1.0.0b261008,<2", - "agent-framework-chatkit>=1.0.0b261002,<2", - "agent-framework-claude>=1.0.0b261002,<2", - "agent-framework-copilotstudio>=1.0.0b261002,<2", - "agent-framework-declarative>=1.2.1,<2", - "agent-framework-devui>=1.0.0b261008,<2", + "agent-framework-bedrock>=1.0.0b261015,<2", + "agent-framework-chatkit>=1.0.0b261015,<2", + "agent-framework-claude>=1.0.0b261015,<2", + "agent-framework-copilotstudio>=1.0.0b261015,<2", + "agent-framework-declarative>=1.3.0,<2", + "agent-framework-devui>=1.0.0b261015,<2", "agent-framework-durabletask>=1.0.0b260922,<2", - "agent-framework-foundry>=1.14.1,<2", - "agent-framework-foundry-hosting>=1.0.0b261008,<2", - "agent-framework-foundry-local>=1.0.0b260730,<2", - "agent-framework-gemini>=1.0.0b261008,<2", - "agent-framework-github-copilot>=2.0.2,<3; python_version >= '3.11'", - "agent-framework-hyperlight>=1.0.0b261008,<2; python_version < '3.15' and ((sys_platform == 'linux' and platform_machine == 'x86_64') or (sys_platform == 'win32' and platform_machine == 'AMD64'))", - "agent-framework-mem0>=1.0.0b261002,<2", - "agent-framework-mistral>=1.0.0b260918,<2", - "agent-framework-monty>=1.0.0b261008,<2", - "agent-framework-ollama>=1.0.0b261008,<2", - "agent-framework-openai>=1.16.0,<2", - "agent-framework-orchestrations>=1.3.1,<2", - "agent-framework-purview>=1.0.0b261008,<2", - "agent-framework-redis>=1.0.0b261002,<2; python_version < '3.15'", - "agent-framework-tools>=1.0.0b261008,<2", + "agent-framework-foundry>=1.15.0,<2", + "agent-framework-foundry-hosting>=1.0.0b261015,<2", + "agent-framework-foundry-local>=1.0.0b261015,<2", + "agent-framework-gemini>=1.0.0b261015,<2", + "agent-framework-github-copilot>=2.1.0,<3; python_version >= '3.11'", + "agent-framework-hyperlight>=1.0.0b261015,<2; python_version < '3.15' and ((sys_platform == 'linux' and platform_machine == 'x86_64') or (sys_platform == 'win32' and platform_machine == 'AMD64'))", + "agent-framework-mem0>=1.0.0b261015,<2", + "agent-framework-mistral>=1.0.0b261015,<2", + "agent-framework-monty>=1.0.0b261015,<2", + "agent-framework-ollama>=1.0.0b261015,<2", + "agent-framework-openai>=1.17.0,<2", + "agent-framework-orchestrations>=1.3.2,<2", + "agent-framework-purview>=1.0.0b261015,<2", + "agent-framework-redis>=1.0.0b261015,<2; python_version < '3.15'", + "agent-framework-tools>=1.0.0b261015,<2", ] [dependency-groups] diff --git a/python/packages/core/tests/core/test_agents.py b/python/packages/core/tests/core/test_agents.py index 5bd4b4d8754..1481ce8a77b 100644 --- a/python/packages/core/tests/core/test_agents.py +++ b/python/packages/core/tests/core/test_agents.py @@ -2925,6 +2925,71 @@ async def test_chat_agent_as_mcp_server_basic(client: SupportsChatGetResponse) - assert hasattr(server, "name") assert hasattr(server, "version") + from mcp import Client + + async with Client(server) as mcp_client: # auto -> 2026-07-28; aka V2 + tools_result = await mcp_client.list_tools() + call_result = await mcp_client.call_tool("TestAgent", {"task": "hello"}) + + assert [tool.name for tool in tools_result.tools] == ["TestAgent"] + assert call_result.result_type == "complete" + assert not call_result.is_error + assert mcp_client.protocol_version == "2026-07-28" + + async with Client(server, mode="legacy") as mcp_client: # 2025-11-25; aka legacy + tools_result = await mcp_client.list_tools() + call_result = await mcp_client.call_tool("TestAgent", {"task": "hello"}) + + assert [tool.name for tool in tools_result.tools] == ["TestAgent"] + assert call_result.result_type == "complete" + assert not call_result.is_error + assert mcp_client.protocol_version == "2025-11-25" + + +async def test_agent_as_mcp_server_registers_and_forwards_logging(client: SupportsChatGetResponse) -> None: + from mcp import types + + server = Agent(client=client, name="TestAgent").as_mcp_server() + context = MagicMock() + context.session.send_log_message = AsyncMock() + + assert "logging/setLevel" in server._request_handlers + + with ( + patch("agent_framework._agents.logger.setLevel") as set_level, + patch("agent_framework._agents.logger.log") as local_log, + ): + result = await server._request_handlers["logging/setLevel"].handler( + context, + types.SetLevelRequestParams(level="warning"), + ) + + assert isinstance(result, types.EmptyResult) + set_level.assert_called_once_with(logging.WARNING) + local_log.assert_called_once_with(logging.WARNING, "Log level set to warning") + context.session.send_log_message.assert_awaited_once_with( + level="warning", + data="Log level set to warning", + ) + + +async def test_agent_as_mcp_server_legacy_client_receives_log_messages(client: SupportsChatGetResponse) -> None: + from mcp import Client + + received: list[Any] = [] + + async def logging_callback(params: Any) -> None: + received.append(params) + + server = Agent(client=client, name="TestAgent").as_mcp_server() + with patch("agent_framework._agents.logger.setLevel"): + async with Client(server, mode="legacy", logging_callback=logging_callback) as mcp_client: + await mcp_client.set_logging_level("notice") # ty: ignore[deprecated] + await mcp_client.list_tools() + + assert any(item.level == "notice" and item.data == "Log level set to notice" for item in received) + assert any(item.level == "debug" and str(item.data).startswith("Agent tool:") for item in received) + async def test_agent_prepares_mcp_run_before_copying_functions(chat_client_base: Any) -> None: captured_options: list[dict[str, Any]] = [] diff --git a/python/packages/core/tests/core/test_filesystem.py b/python/packages/core/tests/core/test_filesystem.py index 764f8307aac..0278e6c3a78 100644 --- a/python/packages/core/tests/core/test_filesystem.py +++ b/python/packages/core/tests/core/test_filesystem.py @@ -19,8 +19,10 @@ import pytest +from agent_framework import _filesystem as filesystem_module from agent_framework._filesystem import ( # pyright: ignore[reportPrivateUsage] _MAX_ENCODED_STORAGE_KEY_SEGMENT_LENGTH, + _atomic_write_text, _is_literal_storage_key_segment_safe, _storage_key_segment, ) @@ -80,6 +82,43 @@ "0198F0C5-1A2B-7C3D-8E4F-5A6B7C8D9E0F", ) + +def test_atomic_write_text_rejects_preexisting_symbolic_link(tmp_path, monkeypatch: pytest.MonkeyPatch) -> None: + """A planted temporary-file link must not redirect a state write.""" + + class _FixedUuid: + hex = "0" * 32 + + monkeypatch.setattr(filesystem_module.uuid, "uuid4", _FixedUuid) + target_path = tmp_path / "target.txt" + target_path.write_text("original", encoding="utf-8") + temp_path = tmp_path / f".maf-state-{'0' * 32}.tmp" + try: + temp_path.symlink_to(target_path) + except (NotImplementedError, OSError): + pytest.skip("Symbolic links are not supported in this environment.") + + destination_path = tmp_path / "state.json" + with pytest.raises(FileExistsError): + _atomic_write_text(destination_path, "replacement") + + assert target_path.read_text(encoding="utf-8") == "original" + assert not destination_path.exists() + assert temp_path.is_symlink() + + +def test_atomic_write_text_preserves_stream_initialization_error(tmp_path) -> None: + """A stream setup failure must retain its error and remove the temporary file.""" + destination_path = tmp_path / "state.json" + destination_path.write_text("original", encoding="utf-8") + + with pytest.raises(LookupError, match="unknown encoding"): + _atomic_write_text(destination_path, "replacement", encoding="not-a-real-encoding") + + assert destination_path.read_text(encoding="utf-8") == "original" + assert list(tmp_path.glob(".maf-state-*.tmp")) == [] + + SAFE_IDENTIFIERS: tuple[str, ...] = ( "customer-42", "customer_42", diff --git a/python/packages/core/tests/core/test_harness_loop.py b/python/packages/core/tests/core/test_harness_loop.py index 3b87544d804..40c85e9ac19 100644 --- a/python/packages/core/tests/core/test_harness_loop.py +++ b/python/packages/core/tests/core/test_harness_loop.py @@ -2,6 +2,7 @@ from __future__ import annotations +import asyncio from collections.abc import AsyncIterable, Awaitable, Mapping, Sequence from typing import Any @@ -1567,6 +1568,54 @@ async def test_turn_scoped_after_run_fires_once_per_loop_streaming() -> None: assert run_scoped.after_calls == 3 +@pytest.mark.parametrize("stop_mode", ["full_consumption", "early_close", "cancellation"]) +async def test_streaming_loop_releases_active_inner_stream(stop_mode: str) -> None: + cleanup_calls = 0 + block_second_update = asyncio.Event() + + class CleanupRecordingClient(RecordingChatClient): + def _stream( + self, messages: Sequence[Message], conversation_id: str | None = None + ) -> ResponseStream[ChatResponseUpdate, ChatResponse]: + async def _gen() -> AsyncIterable[ChatResponseUpdate]: + yield ChatResponseUpdate(contents=[Content.from_text("first")], role="assistant") + if stop_mode == "cancellation": + await block_second_update.wait() + yield ChatResponseUpdate(contents=[Content.from_text("second")], role="assistant") + + async def _cleanup() -> None: + nonlocal cleanup_calls + cleanup_calls += 1 + + return ResponseStream( + _gen(), + finalizer=ChatResponse.from_updates, + cleanup_hooks=[_cleanup], + ) + + agent = Agent( + client=CleanupRecordingClient(), + middleware=[AgentLoopMiddleware(always_continue, max_iterations=1)], + ) + + stream = agent.run("start", stream=True) + if stop_mode == "early_close": + await anext(stream) + await stream.close() + elif stop_mode == "cancellation": + await anext(stream) + next_update = asyncio.create_task(anext(stream)) + await asyncio.sleep(0) + next_update.cancel() + with pytest.raises(asyncio.CancelledError): + await next_update + else: + _ = [update async for update in stream] + await stream.get_final_response() + + assert cleanup_calls == 1 + + async def test_turn_scoped_after_run_fires_normally_without_loop() -> None: client = RecordingChatClient() turn_scoped = _TurnScopedRecordingProvider() diff --git a/python/packages/core/tests/core/test_harness_memory.py b/python/packages/core/tests/core/test_harness_memory.py index 400c9fc6149..464255d0b43 100644 --- a/python/packages/core/tests/core/test_harness_memory.py +++ b/python/packages/core/tests/core/test_harness_memory.py @@ -27,6 +27,7 @@ MemoryTopicRecord, Message, ) +from agent_framework import _filesystem as filesystem_module from .test_filesystem import COLLIDING_IDENTIFIERS @@ -820,8 +821,6 @@ def test_memory_topic_record_round_trips_when_text_contains_section_markers() -> async def test_memory_file_store_atomic_write_preserves_prior_topic_on_failure(tmp_path, monkeypatch) -> None: """If ``os.replace`` fails mid-write, the previous topic file must remain intact.""" - from agent_framework._harness import _memory as memory_module - store = MemoryFileStore(tmp_path, owner_state_key="owner_id") session = AgentSession(session_id="session-1") session.state["owner_id"] = "alice" @@ -834,12 +833,12 @@ async def test_memory_file_store_atomic_write_preserves_prior_topic_on_failure(t ) store.write_topic(session, original, source_id=DEFAULT_MEMORY_SOURCE_ID) - real_replace = memory_module.os.replace + real_replace = filesystem_module.os.replace def _boom(*args: object, **kwargs: object) -> None: raise OSError("simulated disk-full") - monkeypatch.setattr(memory_module.os, "replace", _boom) + monkeypatch.setattr(filesystem_module.os, "replace", _boom) with pytest.raises(OSError, match="simulated disk-full"): store.write_topic( session, @@ -853,12 +852,12 @@ def _boom(*args: object, **kwargs: object) -> None: source_id=DEFAULT_MEMORY_SOURCE_ID, ) - monkeypatch.setattr(memory_module.os, "replace", real_replace) + monkeypatch.setattr(filesystem_module.os, "replace", real_replace) surviving = store.get_topic(session, source_id=DEFAULT_MEMORY_SOURCE_ID, topic="preferences") assert surviving.summary == "Prefers concise answers." # Temp file should not be left behind. topics_dir = surviving_dir = tmp_path - leftover = [path for path in topics_dir.rglob("*.tmp.*")] + leftover = [path for path in topics_dir.rglob(".maf-state-*.tmp")] assert leftover == [] del surviving_dir diff --git a/python/packages/core/tests/core/test_mcp.py b/python/packages/core/tests/core/test_mcp.py index 43864b6cd1d..0f666f5a618 100644 --- a/python/packages/core/tests/core/test_mcp.py +++ b/python/packages/core/tests/core/test_mcp.py @@ -8,17 +8,19 @@ import os import sys import warnings -from contextlib import _AsyncGeneratorContextManager # type: ignore +from collections.abc import AsyncGenerator, AsyncIterator, Callable, Mapping +from contextlib import AbstractAsyncContextManager, _AsyncGeneratorContextManager # type: ignore from contextvars import ContextVar -from datetime import timedelta +from textwrap import dedent +from types import TracebackType from typing import Any, cast from unittest.mock import AsyncMock, Mock, patch import pytest -from mcp import types +from httpx2 import AsyncClient, MockTransport, Request, Response +from mcp import MCPError, types from mcp.client.session import ClientSession -from mcp.shared.exceptions import McpError -from pydantic import AnyUrl, BaseModel +from pydantic import BaseModel from agent_framework import ( Agent, @@ -30,7 +32,8 @@ FunctionTool, MCPStdioTool, MCPStreamableHTTPTool, - MCPWebsocketTool, + MCPTaskOptions, # ty: ignore[deprecated] + MCPWebsocketTool, # ty: ignore[deprecated] Message, SupportsChatGetResponse, ) @@ -41,6 +44,7 @@ MCPSpecificApproval, MCPTool, _build_prefixed_mcp_name, + _ClientMCPConnection, _describe_error, _get_input_model_from_mcp_prompt, _json_size_exceeds, @@ -75,9 +79,152 @@ def _mcp_result_to_text(result: str | list[Content]) -> str: return text or str(result) +def _mock_sdk_client( + *, + session: Mock | None = None, + capabilities: types.ServerCapabilities | None = None, + protocol_version: str = "2025-11-25", +) -> AsyncMock: + """Model the SDK client's connected session and negotiated metadata.""" + capabilities = capabilities if capabilities is not None else types.ServerCapabilities() + session = session if session is not None else Mock(spec=ClientSession) + session.protocol_version = protocol_version + session.server_capabilities = capabilities + session.initialize_result = ( + types.InitializeResult( + protocol_version=protocol_version, + capabilities=capabilities, + server_info=types.Implementation(name="mock-server", version="1.0"), + ) + if protocol_version == "2025-11-25" + else None + ) + + client = AsyncMock() + client.session = session + client.protocol_version = protocol_version + client.server_capabilities = capabilities + client.__aenter__.return_value = client + + async def list_tools( + *, + cursor: str | None = None, + meta: types.RequestParamsMeta | None = None, + cache_mode: str = "use", + ) -> types.ListToolsResult: + del meta, cache_mode + params = types.PaginatedRequestParams(cursor=cursor) if cursor is not None else None + return await session.list_tools(params=params) + + async def list_prompts( + *, + cursor: str | None = None, + meta: types.RequestParamsMeta | None = None, + cache_mode: str = "use", + ) -> types.ListPromptsResult: + del meta, cache_mode + params = types.PaginatedRequestParams(cursor=cursor) if cursor is not None else None + return await session.list_prompts(params=params) + + client.list_tools = AsyncMock(side_effect=list_tools) + client.list_prompts = AsyncMock(side_effect=list_prompts) + + return client + + +def _mock_unnegotiated_session(capabilities: types.ServerCapabilities | None) -> Mock: + """Model a caller-owned session that becomes legacy-negotiated on initialize.""" + initialize_result = ( + types.InitializeResult( + protocol_version="2025-11-25", + capabilities=capabilities, + server_info=types.Implementation(name="mock-server", version="1.0"), + ) + if capabilities is not None + else Mock(protocol_version="2025-11-25", capabilities=None) + ) + session = Mock(spec=ClientSession) + session.protocol_version = None + session.server_capabilities = None + session.initialize_result = None + + async def initialize() -> Any: + session.protocol_version = "2025-11-25" + session.server_capabilities = capabilities + session.initialize_result = initialize_result + return initialize_result + + session.initialize = AsyncMock(side_effect=initialize) + return session + + +def _connected_client(tool: MCPTool) -> Any: + connection = tool._require_connection() + assert connection.client is not None + return connection.client + + +class _TransportBoundClientContext: + """Model SDK-owned transport entry and exit without running a protocol dispatcher.""" + + def __init__(self, transport: AbstractAsyncContextManager[Any], client: AsyncMock) -> None: + self.transport = transport + self.client = client + self.exit_stack = contextlib.AsyncExitStack() + + async def __aenter__(self) -> AsyncMock: + async with contextlib.AsyncExitStack() as stack: + await stack.enter_async_context(self.transport) + client = await stack.enter_async_context(self.client) + self.exit_stack = stack.pop_all() + return client + + async def __aexit__( + self, exc_type: type[BaseException] | None, exc: BaseException | None, tb: TracebackType | None + ) -> bool | None: + return await self.exit_stack.__aexit__(exc_type, exc, tb) + + _HELPER_MCP_TOOL = MCPTool(name="helper") # type: ignore[abstract] # ty: ignore[call-non-callable] +def test_mcp_task_options_compatibility_shim() -> None: + with pytest.warns(DeprecationWarning, match="MCPTaskOptions is retained only for import compatibility"): + options = MCPTaskOptions("legacy", default_ttl=30, unknown_option=True) # ty: ignore[deprecated] + + assert isinstance(options, MCPTaskOptions) # ty: ignore[deprecated] + + +@pytest.mark.parametrize( + "factory", + [ + lambda value: MCPTool(name="compat", task_options=value), # type: ignore[abstract] # ty: ignore[call-non-callable] + lambda value: MCPStdioTool(name="compat", command="python", task_options=value), + lambda value: MCPStreamableHTTPTool(name="compat", url="https://example.com/mcp", task_options=value), + lambda value: MCPWebsocketTool( # ty: ignore[deprecated] + name="compat", + url="wss://example.com/mcp", + task_options=value, + ), + ], +) +@pytest.mark.parametrize("task_options", [None, object()]) +def test_mcp_task_options_compatibility(factory: Callable[[Any], MCPTool], task_options: Any) -> None: + expected = ( + "`task_options` is deprecated and ignored because the MCP Python SDK does not expose the 2026 " + "Tasks extension runtime." + ) + + with warnings.catch_warnings(record=True) as captured: + warnings.simplefilter("always") + factory(task_options) + + task_warnings = [item for item in captured if str(item.message) == expected] + assert len(task_warnings) == (0 if task_options is None else 1) + if task_warnings: + assert task_warnings[0].category is DeprecationWarning + + def _raise_result_parser(_: Any) -> str: raise ValueError("parser failed") @@ -128,7 +275,7 @@ def _reset_progressive_mcp_warning_state() -> None: def _request_for_mcp_tool(tool: MCPStreamableHTTPTool, url: str = "http://example.com/mcp") -> Any: - import httpx + import httpx2 as httpx return httpx.Request( "POST", @@ -162,14 +309,6 @@ def test_mcp_transport_subclasses_accept_tool_name_prefix() -> None: ).tool_name_prefix == "http" ) - assert ( - MCPWebsocketTool( - name="ws", - url="wss://example.com/mcp", - tool_name_prefix="ws", - ).tool_name_prefix - == "ws" - ) @pytest.mark.parametrize("configured_name", ["search_docs", "docs_search_docs"]) @@ -191,10 +330,10 @@ async def test_load_tools_with_tool_name_prefix_preserves_matching_configuration types.Tool( name="search_docs", description="Search docs", - inputSchema={"type": "object", "properties": {"query": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"query": {"type": "string"}}}, ), ] - page.nextCursor = None + page.next_cursor = None mock_session.list_tools = AsyncMock(return_value=page) await tool.load_tools() @@ -233,20 +372,21 @@ async def test_load_tools_rejects_ambiguous_policy_names( use_progressive_disclosure=progressive, ) advertised_tools = [ - types.Tool(name=name, inputSchema={"type": "object", "properties": {}}) for name in remote_names + types.Tool(name=name, input_schema={"type": "object", "properties": {}}) for name in remote_names ] async def list_tools(params: types.PaginatedRequestParams | None = None) -> types.ListToolsResult: assert tool._functions == [] if paginated: if params is None: - return types.ListToolsResult(tools=advertised_tools[:1], nextCursor="second") + return types.ListToolsResult(tools=advertised_tools[:1], next_cursor="second") assert params.cursor == "second" return types.ListToolsResult(tools=advertised_tools[1:]) return types.ListToolsResult(tools=advertised_tools) - tool.session = AsyncMock() - tool.session.list_tools = AsyncMock(side_effect=list_tools) + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_tools = AsyncMock(side_effect=list_tools) with pytest.raises(ToolExecutionException, match="configuration name 'docs_search' is ambiguous"): await tool.load_tools() @@ -280,31 +420,31 @@ async def test_ambiguous_policy_reload_preserves_previous_discovery( tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] name="docs", tool_name_prefix="docs", allowed_tools=allowed_tools, approval_mode=approval_mode ) - tool.session = AsyncMock() + mock_session = AsyncMock() + tool.session = mock_session original = types.Tool( name=remote_names[0], - inputSchema={"type": "object", "properties": {"query": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"query": {"type": "string"}}}, _meta={"original": True}, ) - tool.session.list_tools = AsyncMock(return_value=types.ListToolsResult(tools=[original])) + mock_session.list_tools = AsyncMock(return_value=types.ListToolsResult(tools=[original])) await tool.load_tools() original_functions = list(tool._functions) original_meta = dict(tool._tool_call_meta_by_name) original_params = dict(tool._tool_param_names_by_name) - original_tasks = dict(tool._tool_task_support_by_name) async def list_tools(params: types.PaginatedRequestParams | None = None) -> types.ListToolsResult: assert tool._functions == original_functions if params is None: return types.ListToolsResult( - tools=[original, types.Tool(name="extra", inputSchema={"type": "object"})], - nextCursor="second", + tools=[original, types.Tool(name="extra", input_schema={"type": "object"})], + next_cursor="second", ) - return types.ListToolsResult(tools=[types.Tool(name=remote_names[1], inputSchema={"type": "object"})]) + return types.ListToolsResult(tools=[types.Tool(name=remote_names[1], input_schema={"type": "object"})]) - tool.session.list_tools = AsyncMock(side_effect=list_tools) + mock_session.list_tools = AsyncMock(side_effect=list_tools) with caplog.at_level(logging.WARNING, logger=logger.name): - await tool.message_handler(types.ServerNotification(types.ToolListChangedNotification())) + await tool.message_handler(types.ToolListChangedNotification()) await asyncio.gather(*tool._pending_reload_tasks) private_error_detail = "configuration name 'docs_search' is ambiguous" @@ -315,7 +455,6 @@ async def list_tools(params: types.PaginatedRequestParams | None = None) -> type assert tool.functions == original_functions assert tool._tool_call_meta_by_name == original_meta assert tool._tool_param_names_by_name == original_params - assert tool._tool_task_support_by_name == original_tasks @pytest.mark.parametrize( @@ -337,47 +476,49 @@ async def test_tool_refresh_accepts_unambiguous_rename( tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] name="docs", tool_name_prefix="docs", allowed_tools=allowed_tools, approval_mode=approval_mode ) - tool.session = AsyncMock() - tool.session.list_tools = AsyncMock( + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_tools = AsyncMock( side_effect=[ - types.ListToolsResult(tools=[types.Tool(name=name, inputSchema={"type": "object"})]) + types.ListToolsResult(tools=[types.Tool(name=name, input_schema={"type": "object"})]) for name in remote_names ] ) await tool.load_tools() - await tool.message_handler(types.ServerNotification(types.ToolListChangedNotification())) + await tool.message_handler(types.ToolListChangedNotification()) await asyncio.gather(*tool._pending_reload_tasks) assert [function.name for function in tool.functions] == [f"docs_{remote_names[1]}"] assert tool.functions[0].approval_mode == expected_approval - tool.session.call_tool = AsyncMock( + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult(content=[types.TextContent(type="text", text="ok")]) ) await tool.functions[0].invoke(arguments={}) - assert tool.session.call_tool.call_args.args[0] == remote_names[1] + assert mock_session.call_tool.call_args.args[0] == remote_names[1] @pytest.mark.parametrize("empty_snapshot", [False, True]) async def test_tool_refresh_replaces_snapshot_and_preserves_other_functions(empty_snapshot: bool) -> None: tool = MCPTool(name="docs", tool_name_prefix="docs") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = AsyncMock() + mock_session = AsyncMock() + tool.session = mock_session keep = types.Tool( name="keep", - inputSchema={"type": "object", "properties": {"query": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"query": {"type": "string"}}}, _meta={"version": 1}, ) removed = types.Tool( name="removed", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, _meta={"version": 1}, - execution=types.ToolExecution(taskSupport="required"), + execution=types.ToolExecution(task_support="required"), ) - tool.session.list_tools = AsyncMock(return_value=types.ListToolsResult(tools=[keep, removed])) + mock_session.list_tools = AsyncMock(return_value=types.ListToolsResult(tools=[keep, removed])) await tool.load_tools() kept_function = tool._functions[0] parser = Mock(return_value="custom result") kept_function.result_parser = parser - tool.session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[types.Prompt(name="summary")])) + mock_session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[types.Prompt(name="summary")])) await tool.load_prompts() prompt_function = tool._functions[-1] custom_function = FunctionTool(name="custom", func=lambda: "custom") @@ -391,11 +532,11 @@ async def list_tools(params: types.PaginatedRequestParams | None = None) -> type assert tool._functions == original_functions assert tool._tool_call_meta_by_name == original_meta if params is None: - return types.ListToolsResult(tools=[], nextCursor="second") + return types.ListToolsResult(tools=[], next_cursor="second") assert params.cursor == "second" return types.ListToolsResult(tools=[] if empty_snapshot else [keep]) - tool.session.list_tools = AsyncMock(side_effect=list_tools) + mock_session.list_tools = AsyncMock(side_effect=list_tools) await tool.load_tools() assert tool._functions is original_list @@ -409,18 +550,68 @@ async def list_tools(params: types.PaginatedRequestParams | None = None) -> type assert kept_function.result_parser is parser assert tool._tool_call_meta_by_name == ({} if empty_snapshot else {"keep": {"version": 2}}) assert tool._tool_param_names_by_name == ({} if empty_snapshot else {"keep": {"query"}}) - assert tool._tool_task_support_by_name == {} + + +async def test_load_tools_skips_task_capable_tools(caplog: pytest.LogCaptureFixture) -> None: + tool = MCPTool(name="docs") # type: ignore[abstract] # ty: ignore[call-non-callable] + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_tools = AsyncMock( + return_value=types.ListToolsResult( + tools=[ + types.Tool( + name="required", + input_schema={"type": "object", "properties": {"secret": {"type": "string"}}}, + execution=types.ToolExecution(task_support="required"), + _meta={"must-not-leak": True}, + ), + types.Tool( + name="optional", + input_schema={"type": "object", "properties": {}}, + execution=types.ToolExecution(task_support="optional"), + _meta={"mode": "optional"}, + ), + types.Tool( + name="forbidden", + input_schema={"type": "object", "properties": {}}, + execution=types.ToolExecution(task_support="forbidden"), + ), + types.Tool(name="ordinary", input_schema={"type": "object", "properties": {}}), + ] + ) + ) + mock_session.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="ok")]) + ) + + with caplog.at_level(logging.WARNING, logger=logger.name): + await tool.load_tools() + + assert [function.name for function in tool.functions] == ["forbidden", "ordinary"] + assert tool._tool_call_meta_by_name == {} + assert set(tool._tool_param_names_by_name) == {"forbidden", "ordinary"} + for tool_name in ("required", "optional"): + assert ( + f"Skipping MCP tool '{tool_name}' because it (might) require the Tasks extension, " + "which MCP Python SDK 2.2 does not implement." + ) in caplog.messages + + for function in tool.functions: + await function.invoke(arguments={}) + + assert [call.args[0] for call in mock_session.call_tool.await_args_list] == ["forbidden", "ordinary"] async def test_tool_refresh_preserves_prompt_when_server_advertises_same_raw_name() -> None: tool = MCPTool(name="docs") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = AsyncMock() - tool.session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[types.Prompt(name="summary")])) + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[types.Prompt(name="summary")])) await tool.load_prompts() prompt_function = tool._functions[0] - tool.session.list_tools = AsyncMock( + mock_session.list_tools = AsyncMock( side_effect=[ - types.ListToolsResult(tools=[types.Tool(name="summary", inputSchema={"type": "object"})]), + types.ListToolsResult(tools=[types.Tool(name="summary", input_schema={"type": "object"})]), types.ListToolsResult(tools=[]), ] ) @@ -434,7 +625,7 @@ async def test_tool_refresh_preserves_prompt_when_server_advertises_same_raw_nam async def test_tool_refresh_forgets_removed_progressive_tools(replacement_name: str | None) -> None: tool = await _load_progressive_test_server( tool_name_prefix="docs", - tools=[types.Tool(name=name, inputSchema={"type": "object"}) for name in ("search/docs", "keep")], + tools=[types.Tool(name=name, input_schema={"type": "object"}) for name in ("search/docs", "keep")], ) loader = tool.functions[1] context = FunctionInvocationContext(function=loader, arguments={}, tools=list(tool.functions)) @@ -447,7 +638,7 @@ async def test_tool_refresh_forgets_removed_progressive_tools(replacement_name: "list_tools", return_value=types.ListToolsResult( tools=[ - types.Tool(name=name, inputSchema={"type": "object"}) + types.Tool(name=name, input_schema={"type": "object"}) for name in (["keep", replacement_name] if replacement_name else ["keep"]) ] ), @@ -488,11 +679,12 @@ async def test_overlapping_names_accept_unambiguous_policy( "never_require_approval": ["search", "docs_docs_search"], }, ) - tool.session = AsyncMock() - tool.session.list_tools = AsyncMock( + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ - types.Tool(name=name, inputSchema={"type": "object", "properties": {}}) + types.Tool(name=name, input_schema={"type": "object", "properties": {}}) for name in ("search", "docs_search") ] ) @@ -514,10 +706,11 @@ async def test_prompts_reject_ambiguous_policy_names(load_order: str) -> None: tool_name_prefix="docs", allowed_tools=["docs_search"], ) - tool.session = AsyncMock() - tool.session.list_prompts = AsyncMock( + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_prompts = AsyncMock( side_effect=[ - types.ListPromptsResult(prompts=[types.Prompt(name="search")], nextCursor="second"), + types.ListPromptsResult(prompts=[types.Prompt(name="search")], next_cursor="second"), types.ListPromptsResult(prompts=[types.Prompt(name="docs_search")]), ] ) @@ -527,12 +720,12 @@ async def test_prompts_reject_ambiguous_policy_names(load_order: str) -> None: assert tool._functions == [] return - tool.session.list_tools = AsyncMock( + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( - tools=[types.Tool(name="search", inputSchema={"type": "object", "properties": {}})] + tools=[types.Tool(name="search", input_schema={"type": "object", "properties": {}})] ) ) - tool.session.list_prompts = AsyncMock( + mock_session.list_prompts = AsyncMock( return_value=types.ListPromptsResult(prompts=[types.Prompt(name="docs_search")]) ) first_load, second_load = ( @@ -560,10 +753,10 @@ async def test_allowed_tools_does_not_authorize_normalized_remote_name_collision types.Tool( name="delete/file", description="Delete a file", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), ] - page.nextCursor = None + page.next_cursor = None mock_session.list_tools = AsyncMock(return_value=page) await tool.load_tools() @@ -585,15 +778,15 @@ async def test_load_tools_rejects_colliding_normalized_tool_names() -> None: types.Tool( name="delete/file", description="Unauthorized tool", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), types.Tool( name="delete-file", description="Authorized tool", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), ] - page.nextCursor = None + page.next_cursor = None mock_session.list_tools = AsyncMock(return_value=page) with pytest.raises(ToolExecutionException, match="map to the same local function name"): @@ -613,10 +806,10 @@ async def test_allowed_tools_exact_raw_name_allows_normalized_function_name() -> types.Tool( name="delete/file", description="Delete a file", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), ] - page.nextCursor = None + page.next_cursor = None mock_session.list_tools = AsyncMock(return_value=page) await tool.load_tools() @@ -642,10 +835,10 @@ async def test_approval_mode_does_not_match_normalized_colliding_name() -> None: types.Tool( name="delete/file", description="Delete a file", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), ] - page.nextCursor = None + page.next_cursor = None mock_session.list_tools = AsyncMock(return_value=page) await tool.load_tools() @@ -670,7 +863,7 @@ async def test_load_prompts_with_tool_name_prefix() -> None: arguments=[types.PromptArgument(name="topic", description="Topic", required=True)], ), ] - page.nextCursor = None + page.next_cursor = None mock_session.list_prompts = AsyncMock(return_value=page) await tool.load_prompts() @@ -681,13 +874,14 @@ async def test_load_prompts_with_tool_name_prefix() -> None: async def test_load_prompts_refresh_replaces_prompt_catalog() -> None: """A complete prompts/list refresh removes, updates, and keeps prompts without touching other functions.""" tool = MCPTool(name="docs") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = AsyncMock() - tool.session.list_tools = AsyncMock( - return_value=types.ListToolsResult(tools=[types.Tool(name="search", inputSchema={"type": "object"})]) + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_tools = AsyncMock( + return_value=types.ListToolsResult(tools=[types.Tool(name="search", input_schema={"type": "object"})]) ) await tool.load_tools() tool_function = tool._functions[0] - tool.session.list_prompts = AsyncMock( + mock_session.list_prompts = AsyncMock( return_value=types.ListPromptsResult( prompts=[ types.Prompt(name="keep", description="Keep"), @@ -702,9 +896,9 @@ async def test_load_prompts_refresh_replaces_prompt_catalog() -> None: tool._functions.append(custom_function) tool._progressive_loaded_tool_names.update({"keep", "removed"}) - tool.session.list_prompts = AsyncMock( + mock_session.list_prompts = AsyncMock( side_effect=[ - types.ListPromptsResult(prompts=[types.Prompt(name="keep", description="Keep")], nextCursor="second"), + types.ListPromptsResult(prompts=[types.Prompt(name="keep", description="Keep")], next_cursor="second"), types.ListPromptsResult( prompts=[ types.Prompt( @@ -731,8 +925,9 @@ async def test_load_prompts_refresh_replaces_prompt_catalog() -> None: async def test_load_prompts_refresh_forgets_progressive_state_on_normalized_name_collision() -> None: """A different remote prompt that normalizes to the same local name must not inherit load state.""" tool = MCPTool(name="docs") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = AsyncMock() - tool.session.list_prompts = AsyncMock( + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_prompts = AsyncMock( return_value=types.ListPromptsResult(prompts=[types.Prompt(name="a/b", description="Same")]) ) await tool.load_prompts() @@ -740,7 +935,7 @@ async def test_load_prompts_refresh_forgets_progressive_state_on_normalized_name assert old_prompt.name == "a-b" tool._progressive_loaded_tool_names.add("a-b") - tool.session.list_prompts = AsyncMock( + mock_session.list_prompts = AsyncMock( return_value=types.ListPromptsResult(prompts=[types.Prompt(name="a-b", description="Same")]) ) await tool.load_prompts() @@ -756,15 +951,16 @@ async def test_load_prompts_refresh_forgets_progressive_state_on_normalized_name async def test_load_prompts_refresh_keeps_progressive_state_when_metadata_changes() -> None: """A prompt rebuilt for changed metadata keeps load state while its remote identity is unchanged.""" tool = MCPTool(name="docs") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = AsyncMock() - tool.session.list_prompts = AsyncMock( + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_prompts = AsyncMock( return_value=types.ListPromptsResult(prompts=[types.Prompt(name="summary", description="Old")]) ) await tool.load_prompts() old_prompt = tool._functions[0] tool._progressive_loaded_tool_names.add("summary") - tool.session.list_prompts = AsyncMock( + mock_session.list_prompts = AsyncMock( return_value=types.ListPromptsResult( prompts=[ types.Prompt( @@ -788,13 +984,14 @@ async def test_load_prompts_refresh_keeps_progressive_state_when_metadata_change async def test_load_prompts_empty_snapshot_clears_prompts() -> None: """A successful empty prompts/list snapshot clears previously loaded prompts.""" tool = MCPTool(name="docs") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = AsyncMock() - tool.session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[types.Prompt(name="summary")])) + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[types.Prompt(name="summary")])) await tool.load_prompts() custom_function = FunctionTool(name="custom", func=lambda: "custom") tool._functions.append(custom_function) - tool.session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[])) + mock_session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[])) await tool.load_prompts() assert tool._functions == [custom_function] @@ -803,20 +1000,21 @@ async def test_load_prompts_empty_snapshot_clears_prompts() -> None: async def test_load_prompts_failed_pagination_keeps_previous_catalog() -> None: """A failed page request must not publish a partial prompt snapshot.""" tool = MCPTool(name="docs") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = AsyncMock() - tool.session.list_prompts = AsyncMock( + mock_session = AsyncMock() + tool.session = mock_session + mock_session.list_prompts = AsyncMock( return_value=types.ListPromptsResult(prompts=[types.Prompt(name="first"), types.Prompt(name="second")]) ) await tool.load_prompts() original_functions = list(tool._functions) - tool.session.list_prompts = AsyncMock( + mock_session.list_prompts = AsyncMock( side_effect=[ - types.ListPromptsResult(prompts=[types.Prompt(name="first")], nextCursor="second"), - McpError(types.ErrorData(code=-32603, message="boom")), + types.ListPromptsResult(prompts=[types.Prompt(name="first")], next_cursor="second"), + MCPError(-32603, "boom"), ] ) - with pytest.raises(McpError): + with pytest.raises(MCPError): await tool.load_prompts() assert tool._functions == original_functions @@ -842,19 +1040,19 @@ def test_mcp_tool_str_and_parse_prompt_result_rich_content() -> None: types.PromptMessage(role="user", content=types.TextContent(type="text", text="Hello")), types.PromptMessage( role="assistant", - content=types.ImageContent(type="image", data="eHl6", mimeType="image/png"), + content=types.ImageContent(type="image", data="eHl6", mime_type="image/png"), ), types.PromptMessage( role="assistant", - content=types.AudioContent(type="audio", data="YXVkaW8=", mimeType="audio/wav"), + content=types.AudioContent(type="audio", data="YXVkaW8=", mime_type="audio/wav"), ), types.PromptMessage( role="assistant", content=types.EmbeddedResource( type="resource", resource=types.TextResourceContents( - uri=AnyUrl("file://prompt.txt"), - mimeType="text/plain", + uri="file://prompt.txt", + mime_type="text/plain", text="Embedded prompt", ), ), @@ -864,12 +1062,21 @@ def test_mcp_tool_str_and_parse_prompt_result_rich_content() -> None: content=types.EmbeddedResource( type="resource", resource=types.BlobResourceContents( - uri=AnyUrl("file://prompt.bin"), - mimeType="application/pdf", + uri="file://prompt.bin", + mime_type="application/pdf", blob="ZGF0YQ==", ), ), ), + types.PromptMessage( + role="assistant", + content=types.ResourceLink( + name="prompt-guide", + uri="https://example.test/prompt-guide", + description="Prompt guide", + mime_type="text/markdown", + ), + ), ] ) @@ -882,6 +1089,13 @@ def test_mcp_tool_str_and_parse_prompt_result_rich_content() -> None: assert json.loads(parsed[2]) == {"type": "audio", "data": "YXVkaW8=", "mimeType": "audio/wav"} assert parsed[3] == "Embedded prompt" assert json.loads(parsed[4]) == {"type": "blob", "data": "ZGF0YQ==", "mimeType": "application/pdf"} + assert json.loads(parsed[5]) == { + "type": "resource_link", + "name": "prompt-guide", + "uri": "https://example.test/prompt-guide", + "description": "Prompt guide", + "mimeType": "text/markdown", + } def test_parse_tool_result_from_mcp(): @@ -889,9 +1103,9 @@ def test_parse_tool_result_from_mcp(): mcp_result = types.CallToolResult( content=[ types.TextContent(type="text", text="Result text"), - types.ImageContent(type="image", data="eHl6", mimeType="image/png"), + types.ImageContent(type="image", data="eHl6", mime_type="image/png"), types.TextContent(type="text", text="After image"), - types.ImageContent(type="image", data="YWJj", mimeType="image/webp"), + types.ImageContent(type="image", data="YWJj", mime_type="image/webp"), ] ) result = _HELPER_MCP_TOOL._parse_tool_result_from_mcp(mcp_result) @@ -954,7 +1168,7 @@ def test_parse_tool_result_from_mcp_audio_content(): """Test conversion from MCP tool result with audio returns rich content list.""" mcp_result = types.CallToolResult( content=[ - types.AudioContent(type="audio", data="YXVkaW8=", mimeType="audio/wav"), + types.AudioContent(type="audio", data="YXVkaW8=", mime_type="audio/wav"), ] ) result = _HELPER_MCP_TOOL._parse_tool_result_from_mcp(mcp_result) @@ -973,8 +1187,8 @@ def test_parse_tool_result_from_mcp_blob_plain_base64(): types.EmbeddedResource( type="resource", resource=types.BlobResourceContents( - uri=AnyUrl("file://test.bin"), - mimeType="application/pdf", + uri="file://test.bin", + mime_type="application/pdf", blob="dGVzdCBkYXRh", ), ), @@ -995,15 +1209,15 @@ def test_parse_tool_result_from_mcp_resource_link_text_resource_and_unknown(): content=[ types.ResourceLink( type="resource_link", - uri=AnyUrl("https://example.com/resource"), + uri="https://example.com/resource", name="resource", - mimeType="application/json", + mime_type="application/json", ), types.EmbeddedResource( type="resource", resource=types.TextResourceContents( - uri=AnyUrl("file://prompt.txt"), - mimeType="text/plain", + uri="file://prompt.txt", + mime_type="text/plain", text="Embedded result", ), ), @@ -1022,7 +1236,7 @@ def test_parse_tool_result_from_mcp_structured_content_only(): """Test that structuredContent is parsed when content list is empty.""" mcp_result = types.CallToolResult( content=[], - structuredContent={"Tables": [{"Name": "Sales", "Columns": ["Amount", "Date"]}]}, + structured_content={"Tables": [{"Name": "Sales", "Columns": ["Amount", "Date"]}]}, ) result = _HELPER_MCP_TOOL._parse_tool_result_from_mcp(mcp_result) @@ -1038,7 +1252,7 @@ def test_parse_tool_result_from_mcp_structured_content_with_text(): """Default structured_first prefers structuredContent when both are present (#7866).""" mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="Summary")], - structuredContent={"data": [1, 2, 3]}, + structured_content={"data": [1, 2, 3]}, ) result = _HELPER_MCP_TOOL._parse_tool_result_from_mcp(mcp_result) @@ -1053,7 +1267,7 @@ def test_parse_tool_result_content_modes_for_complementary_and_duplicate_payload """tool_result_content covers structured-only, content-only, either-first, and both.""" mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="Summary")], - structuredContent={"data": [1, 2, 3]}, + structured_content={"data": [1, 2, 3]}, ) content_first = MCPTool(name="helper", tool_result_content="content_first") # type: ignore[abstract] # ty: ignore[call-non-callable] @@ -1073,12 +1287,12 @@ def test_parse_tool_result_content_modes_for_complementary_and_duplicate_payload assert both_result[1].text is not None assert json.loads(both_result[1].text) == {"data": [1, 2, 3]} - structured_only_empty = types.CallToolResult(content=[], structuredContent={"x": 1}) + structured_only_empty = types.CallToolResult(content=[], structured_content={"x": 1}) empty_structured_text = content_first._parse_tool_result_from_mcp(structured_only_empty)[0].text assert empty_structured_text is not None assert json.loads(empty_structured_text) == {"x": 1} - empty = types.CallToolResult(content=[], structuredContent=None) + empty = types.CallToolResult(content=[], structured_content=None) assert content_only._parse_tool_result_from_mcp(empty)[0].text == "null" @@ -1090,13 +1304,14 @@ async def test_generated_mcp_tool_preserves_complete_host_payload_once() -> None } mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="Summary", _meta=file_meta)], - structuredContent={"image_url": "https://example.test/widget.png"}, - isError=False, + structured_content={"image_url": "https://example.test/widget.png"}, + is_error=False, _meta={"widget": "image"}, ) tool = MCPTool(name="helper") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool(tool, "widget") assert function_result.items is not None @@ -1105,6 +1320,7 @@ async def test_generated_mcp_tool_preserves_complete_host_payload_once() -> None "content": [{"type": "text", "text": "Summary", "_meta": file_meta}], "structuredContent": {"image_url": "https://example.test/widget.png"}, "isError": False, + "resultType": "complete", } assert [item.additional_properties["_meta"] for item in function_result.items] == [{"widget": "image"}] @@ -1129,8 +1345,9 @@ async def test_generated_mcp_host_payload_replaces_duplicate_private_markers() - Content.from_text("two", additional_properties=stale), ], ) - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool(tool, "widget") @@ -1145,12 +1362,13 @@ async def test_custom_mcp_result_parser_preserves_direct_shape_and_generated_hos """A custom parser controls model content while generated calls retain the Host payload.""" mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="Server summary")], - structuredContent={"image_url": "https://example.test/widget.png"}, + structured_content={"image_url": "https://example.test/widget.png"}, _meta={"source": "server"}, ) tool = MCPTool(name="helper", parse_tool_results=lambda _: "Custom model summary") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) direct_result = await tool.call_tool("widget") function_result = await _call_generated_mcp_tool(tool, "widget") @@ -1171,7 +1389,7 @@ async def test_oversized_mcp_host_payload_is_omitted_without_changing_model_resu """An oversized Host payload is omitted while bounded model content and metadata survive.""" mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="Server summary")], - structuredContent={"widget_data": "x" * 1024}, + structured_content={"widget_data": "x" * 1024}, _meta={"source": "oversized"}, ) tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] @@ -1179,8 +1397,9 @@ async def test_oversized_mcp_host_payload_is_omitted_without_changing_model_resu parse_tool_results=lambda _: "Bounded model summary", max_host_payload_size_bytes=128, ) - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) with caplog.at_level(logging.WARNING): function_result = await _call_generated_mcp_tool(tool, "widget") @@ -1206,7 +1425,7 @@ def test_mcp_host_payload_size_boundary_uri_serialization_and_early_abort( ) -> None: mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text='Escaped "\n\u2603" text')], - structuredContent={"widget_data": "x" * 1024}, + structured_content={"widget_data": "x" * 1024}, ) encoded_size = len(json.dumps(mcp_result.model_dump(by_alias=True, exclude_none=True)).encode("utf-8")) @@ -1217,7 +1436,7 @@ def test_mcp_host_payload_size_boundary_uri_serialization_and_early_abort( content=[ types.ResourceLink( type="resource_link", - uri=AnyUrl("file:///abc"), + uri="file:///abc", name="resource", ) ] @@ -1240,13 +1459,14 @@ async def test_generated_mcp_error_preserves_complete_host_payload_on_function_r """An MCP error keeps its Host payload after generic function error conversion.""" mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="Widget failed")], - structuredContent={"reason": "invalid input"}, - isError=True, + structured_content={"reason": "invalid input"}, + is_error=True, _meta={"source": "server"}, ) tool = MCPTool(name="helper") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool(tool, "widget") host_payload = function_result.additional_properties[_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY] @@ -1262,12 +1482,13 @@ async def test_generated_mcp_parser_failure_preserves_complete_host_payload_on_f """Capture raw MCP data before a custom parser can fail.""" mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="Server summary")], - structuredContent={"widget": "complete"}, + structured_content={"widget": "complete"}, _meta={"source": "server"}, ) tool = MCPTool(name="helper", parse_tool_results=_raise_result_parser) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool(tool, "widget") @@ -1281,13 +1502,14 @@ async def test_generated_mcp_parser_failure_preserves_complete_host_payload_on_f async def test_direct_mcp_calls_do_not_materialize_host_payload(monkeypatch: pytest.MonkeyPatch) -> None: """Public direct success and error calls retain their established behavior.""" success = types.CallToolResult(content=[types.TextContent(type="text", text="ok")]) - error = types.CallToolResult(content=[types.TextContent(type="text", text="failed")], isError=True) + error = types.CallToolResult(content=[types.TextContent(type="text", text="failed")], is_error=True) tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] name="helper", parse_tool_results=lambda result: cast(types.TextContent, result.content[0]).text, ) - tool.session = Mock() - tool.session.call_tool = AsyncMock(side_effect=[success, error]) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(side_effect=[success, error]) def fail_if_captured(*_args: Any, **_kwargs: Any) -> Any: raise AssertionError("direct calls must not materialize Host metadata") @@ -1302,8 +1524,9 @@ def fail_if_captured(*_args: Any, **_kwargs: Any) -> Any: async def test_direct_mcp_parser_failure_does_not_materialize_host_payload(monkeypatch: pytest.MonkeyPatch) -> None: tool = MCPTool(name="helper", parse_tool_results=_raise_result_parser) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock( + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult( content=[types.TextContent(type="text", text="ok")], _meta={"source": "server"}, @@ -1323,12 +1546,13 @@ def fail_if_captured(*_args: Any, **_kwargs: Any) -> Any: async def test_function_tool_result_parser_cannot_discard_mcp_host_payload() -> None: mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="server projection")], - structuredContent={"widget": "complete"}, + structured_content={"widget": "complete"}, _meta={"source": "server"}, ) tool = MCPTool(name="helper", parse_tool_results=lambda _: "MCP parser projection") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool( tool, @@ -1349,14 +1573,15 @@ async def test_function_tool_result_parser_cannot_discard_mcp_host_payload() -> async def test_empty_custom_parser_projection_remains_empty(parser_layer: str) -> None: mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="server projection")], - structuredContent={"widget": "complete"}, + structured_content={"widget": "complete"}, ) tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] name="helper", parse_tool_results=(lambda _: []) if parser_layer == "mcp" else None, ) - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool( tool, @@ -1374,13 +1599,14 @@ async def test_empty_custom_parser_projection_remains_empty(parser_layer: str) - async def test_oversized_mcp_error_preserves_independently_bounded_meta() -> None: mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="failed")], - structuredContent={"large": "x" * 1024}, - isError=True, + structured_content={"large": "x" * 1024}, + is_error=True, _meta={"source": "small"}, ) tool = MCPTool(name="helper", max_host_payload_size_bytes=128) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool(tool, "widget") @@ -1394,7 +1620,7 @@ async def test_oversized_mcp_error_preserves_independently_bounded_meta() -> Non def test_mcp_result_meta_has_independent_boundary_and_early_abort(monkeypatch: pytest.MonkeyPatch) -> None: mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="ok")], - _meta={"source": "server", "uri": AnyUrl("https://example.test/resource")}, + _meta={"source": "server", "uri": "https://example.test/resource"}, ) expected = {"source": "server", "uri": "https://example.test/resource"} encoded_size = len(json.dumps(expected).encode("utf-8")) @@ -1424,8 +1650,9 @@ async def test_exhausted_aggregate_budget_rejects_meta_before_copy(monkeypatch: parse_tool_results=lambda _: "model projection", max_host_payload_size_bytes=128, ) - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) budget = _FunctionResultPayloadBudget() assert budget.reserve(128, 128) @@ -1447,8 +1674,9 @@ async def test_oversized_mcp_meta_is_omitted_from_host_and_model_items() -> None _meta={"large": "x" * 1024}, ) tool = MCPTool(name="helper", max_host_payload_size_bytes=128) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool(tool, "widget") @@ -1466,12 +1694,13 @@ async def test_mcp_host_payload_survives_real_function_loop( ) -> None: mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="model projection")], - structuredContent={"widget": "complete"}, + structured_content={"widget": "complete"}, _meta={"source": "server"}, ) tool = MCPTool(name="helper") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function = FunctionTool( name="widget", description="", @@ -1565,16 +1794,17 @@ async def test_mcp_host_payload_has_aggregate_request_budget( expected_markers: int, ) -> None: tool = MCPTool(name="helper", max_host_payload_size_bytes=size_limit) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() + mock_session = Mock() + tool.session = mock_session async def call_tool(tool_name: str, **_kwargs: Any) -> types.CallToolResult: return types.CallToolResult( content=[types.TextContent(type="text", text=tool_name)], - structuredContent={"data": tool_name * 120}, + structured_content={"data": tool_name * 120}, _meta={"source": tool_name * 12}, ) - tool.session.call_tool = AsyncMock(side_effect=call_tool) + mock_session.call_tool = AsyncMock(side_effect=call_tool) functions = [ FunctionTool( name=name, @@ -1630,7 +1860,7 @@ async def test_secure_mcp_auto_hide_preserves_outer_host_payload() -> None: mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="untrusted payload")], - structuredContent={"widget": "complete"}, + structured_content={"widget": "complete"}, _meta={"ifc": {"integrity": "trusted", "confidentiality": "public"}}, ) tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] @@ -1639,8 +1869,9 @@ async def test_secure_mcp_auto_hide_preserves_outer_host_payload() -> None: Content.from_text("untrusted payload", additional_properties={"_meta": result.meta}) ], ) - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function = FunctionTool( name="widget", description="", @@ -1690,14 +1921,15 @@ async def test_secure_mcp_builtin_parser_restricts_all_result_shapes(result_shap content=[types.TextContent(type="text", text="server trusted payload")] if result_shape in ("content", "both") else [], - structuredContent={"payload": "server trusted structured payload"} + structured_content={"payload": "server trusted structured payload"} if result_shape in ("structured", "both") else None, _meta={"ifc": {"integrity": "trusted", "confidentiality": "public"}}, ) tool = MCPTool(name="helper") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function = FunctionTool( name="widget", description="", @@ -1738,8 +1970,9 @@ async def test_secure_mcp_builtin_parser_honors_locally_trusted_server_ifc() -> _meta={"ifc": {"integrity": "trusted", "confidentiality": "public"}}, ) tool = MCPTool(name="helper") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool( tool, @@ -1767,8 +2000,9 @@ async def test_custom_mcp_parser_cannot_make_meta_authoritative() -> None: name="helper", parse_tool_results=lambda _: [Content.from_text("projection", additional_properties={"_meta": forged_meta})], ) - tool.session = Mock() - tool.session.call_tool = AsyncMock(return_value=mcp_result) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(return_value=mcp_result) function_result = await _call_generated_mcp_tool( tool, @@ -1789,7 +2023,7 @@ def test_parse_tool_result_from_mcp_structured_content_none(): """Test that None structuredContent does not affect results.""" mcp_result = types.CallToolResult( content=[types.TextContent(type="text", text="Hello")], - structuredContent=None, + structured_content=None, ) result = _HELPER_MCP_TOOL._parse_tool_result_from_mcp(mcp_result) @@ -1803,7 +2037,7 @@ def test_parse_tool_result_from_mcp_structured_content_non_serializable(): """Test that non-JSON-serializable values in structuredContent degrade gracefully.""" mcp_result = types.CallToolResult( content=[], - structuredContent={"data": b"raw bytes", "count": 42}, + structured_content={"data": b"raw bytes", "count": 42}, ) result = _HELPER_MCP_TOOL._parse_tool_result_from_mcp(mcp_result) @@ -1830,7 +2064,7 @@ def test_mcp_content_types_to_ai_content_text(): def test_mcp_content_types_to_ai_content_image(): """Test conversion of MCP image content to AI content.""" # MCP can send data as base64 string or as bytes - mcp_content = types.ImageContent(type="image", data="YWJj", mimeType="image/jpeg") # base64 for b"abc" + mcp_content = types.ImageContent(type="image", data="YWJj", mime_type="image/jpeg") # base64 for b"abc" ai_content = _HELPER_MCP_TOOL._parse_content_from_mcp(mcp_content)[0] assert ai_content.type == "data" @@ -1842,7 +2076,7 @@ def test_mcp_content_types_to_ai_content_image(): def test_mcp_content_types_to_ai_content_audio(): """Test conversion of MCP audio content to AI content.""" # Use properly padded base64 - mcp_content = types.AudioContent(type="audio", data="ZGVm", mimeType="audio/wav") # base64 for b"def" + mcp_content = types.AudioContent(type="audio", data="ZGVm", mime_type="audio/wav") # base64 for b"def" ai_content = _HELPER_MCP_TOOL._parse_content_from_mcp(mcp_content)[0] assert ai_content.type == "data" @@ -1855,9 +2089,9 @@ def test_mcp_content_types_to_ai_content_resource_link(): """Test conversion of MCP resource link to AI content.""" mcp_content = types.ResourceLink( type="resource_link", - uri=AnyUrl("https://example.com/resource"), + uri="https://example.com/resource", name="test_resource", - mimeType="application/json", + mime_type="application/json", ) ai_content = _HELPER_MCP_TOOL._parse_content_from_mcp(mcp_content)[0] @@ -1870,8 +2104,8 @@ def test_mcp_content_types_to_ai_content_resource_link(): def test_mcp_content_types_to_ai_content_embedded_resource_text(): """Test conversion of MCP embedded text resource to AI content.""" text_resource = types.TextResourceContents( - uri=AnyUrl("file://test.txt"), - mimeType="text/plain", + uri="file://test.txt", + mime_type="text/plain", text="Embedded text content", ) mcp_content = types.EmbeddedResource(type="resource", resource=text_resource) @@ -1886,8 +2120,8 @@ def test_mcp_content_types_to_ai_content_embedded_resource_blob(): """Test conversion of MCP embedded blob resource to AI content.""" # Use a proper data URI in the blob field since that's what the MCP implementation expects blob_resource = types.BlobResourceContents( - uri=AnyUrl("file://test.bin"), - mimeType="application/octet-stream", + uri="file://test.bin", + mime_type="application/octet-stream", blob="data:application/octet-stream;base64,dGVzdCBkYXRh", ) mcp_content = types.EmbeddedResource(type="resource", resource=blob_resource) @@ -1904,9 +2138,9 @@ def test_mcp_content_types_to_ai_content_tool_use_and_tool_result(): tool_use_content = types.ToolUseContent(type="tool_use", id="call-1", name="calculator", input={"x": 1}) tool_result_content = types.ToolResultContent( type="tool_result", - toolUseId="call-1", + tool_use_id="call-1", content=[types.TextContent(type="text", text="done")], - isError=True, + is_error=True, ) function_call = _HELPER_MCP_TOOL._parse_content_from_mcp(tool_use_content)[0] @@ -1940,7 +2174,7 @@ def test_ai_content_to_mcp_content_types_data_image(): assert isinstance(mcp_content, types.ImageContent) assert mcp_content.type == "image" assert mcp_content.data == "data:image/png;base64,xyz" - assert mcp_content.mimeType == "image/png" + assert mcp_content.mime_type == "image/png" def test_ai_content_to_mcp_content_types_data_audio(): @@ -1951,7 +2185,7 @@ def test_ai_content_to_mcp_content_types_data_audio(): assert isinstance(mcp_content, types.AudioContent) assert mcp_content.type == "audio" assert mcp_content.data == "data:audio/mpeg;base64,xyz" - assert mcp_content.mimeType == "audio/mpeg" + assert mcp_content.mime_type == "audio/mpeg" def test_ai_content_to_mcp_content_types_data_binary(): @@ -1965,7 +2199,7 @@ def test_ai_content_to_mcp_content_types_data_binary(): assert isinstance(mcp_content, types.EmbeddedResource) assert mcp_content.type == "resource" assert mcp_content.resource.blob == "data:application/octet-stream;base64,xyz" # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - assert mcp_content.resource.mimeType == "application/octet-stream" + assert mcp_content.resource.mime_type == "application/octet-stream" def test_ai_content_to_mcp_content_types_uri(): @@ -1976,7 +2210,7 @@ def test_ai_content_to_mcp_content_types_uri(): assert isinstance(mcp_content, types.ResourceLink) assert mcp_content.type == "resource_link" assert str(mcp_content.uri) == "https://example.com/resource" - assert mcp_content.mimeType == "application/json" + assert mcp_content.mime_type == "application/json" def test_prepare_message_for_mcp(): @@ -2328,8 +2562,8 @@ def test_get_input_model_from_mcp_tool_parametrized(test_id: str, input_schema: - test_id: A descriptive name for the test case - input_schema: The JSON schema (inputSchema dict) """ - tool = types.Tool(name="test_tool", description="A test tool", inputSchema=input_schema) - schema = tool.inputSchema + tool = types.Tool(name="test_tool", description="A test tool", input_schema=input_schema) + schema = tool.input_schema # Verify schema is returned as-is (dict) assert isinstance(schema, dict), f"Expected dict, got {type(schema)}" @@ -2394,38 +2628,21 @@ async def test_local_mcp_server_initialization(): assert server.functions == [] -async def test_local_mcp_server_context_manager(): - """Test MCPTool as context manager.""" - - class TestServer(MCPTool): - async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - # Mock connection - self.session = Mock(spec=ClientSession) - - def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: - return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] - - server = TestServer(name="test_server") - async with server: - assert server.session is not None - - assert server.session is None - - async def test_local_mcp_server_load_functions(): """Test loading functions from MCP server.""" class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) + mock_session = Mock(spec=ClientSession) + self.session = mock_session # Mock tools list response - self.session.list_tools = AsyncMock( + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="test_tool", description="Test tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, "required": ["param"], @@ -2453,9 +2670,10 @@ async def test_local_mcp_server_load_prompts(): class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) + mock_session = Mock(spec=ClientSession) + self.session = mock_session # Mock prompts list response - self.session.list_prompts = AsyncMock( + mock_session.list_prompts = AsyncMock( return_value=types.ListPromptsResult( prompts=[ types.Prompt( @@ -2482,14 +2700,15 @@ async def test_mcp_tool_call_tool_with_meta_integration(): class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="test_tool", description="Test tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, "required": ["param"], @@ -2505,7 +2724,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri _meta={"executionTime": 1.5, "cost": {"usd": 0.002}, "isError": False, "toolVersion": "1.2.3"}, ) - self.session.call_tool = AsyncMock(return_value=tool_result) + mock_session.call_tool = AsyncMock(return_value=tool_result) def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] @@ -2527,14 +2746,15 @@ async def test_local_mcp_server_function_execution(): class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="test_tool", description="Test tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, "required": ["param"], @@ -2543,7 +2763,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri ] ) ) - self.session.call_tool = AsyncMock( + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult( content=[types.TextContent(type="text", text="Tool executed successfully")] ) @@ -2567,14 +2787,15 @@ async def test_local_mcp_server_function_execution_with_nested_object(): class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="get_customer_detail", description="Get customer details", - inputSchema={ + input_schema={ "type": "object", "properties": { "params": { @@ -2589,7 +2810,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri ] ) ) - self.session.call_tool = AsyncMock( + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult( content=[types.TextContent(type="text", text='{"name": "John Doe", "id": 251}')] ) @@ -2620,14 +2841,15 @@ async def test_local_mcp_server_function_execution_error(): class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="test_tool", description="Test tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, "required": ["param"], @@ -2637,9 +2859,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri ) ) # Mock a tool call that raises an MCP error - self.session.call_tool = AsyncMock( - side_effect=McpError(types.ErrorData(code=-1, message="Tool execution failed")) - ) + mock_session.call_tool = AsyncMock(side_effect=MCPError(-1, "Tool execution failed")) def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] @@ -2664,14 +2884,13 @@ def __init__(self, **kwargs: Any) -> None: async def connect(self, *, reset: bool = False) -> None: self.connect_count += 1 - self.session = Mock(spec=ClientSession) + mock_session = Mock(spec=ClientSession) + self.session = mock_session self.sessions.append(self.session) if self.connect_count == 1: - self.session.call_tool = AsyncMock( - side_effect=McpError(types.ErrorData(code=-32000, message="Session terminated")) - ) + mock_session.call_tool = AsyncMock(side_effect=MCPError(-32000, "Session terminated")) else: - self.session.call_tool = AsyncMock( + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult(content=[types.TextContent(type="text", text="recovered")]) ) self.is_connected = True @@ -2691,18 +2910,19 @@ def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: async def test_mcp_tool_call_tool_raises_on_is_error(): - """Test that call_tool raises ToolExecutionException when MCP returns isError=True.""" + """Test that call_tool raises ToolExecutionException when MCP returns is_error=True.""" class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="test_tool", description="Test tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, "required": ["param"], @@ -2711,10 +2931,10 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri ] ) ) - self.session.call_tool = AsyncMock( + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult( content=[types.TextContent(type="text", text="Something went wrong")], - isError=True, + is_error=True, ) ) @@ -2731,18 +2951,19 @@ def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: async def test_mcp_tool_call_tool_succeeds_when_is_error_false(): - """Test that call_tool returns normally when MCP returns isError=False.""" + """Test that call_tool returns normally when MCP returns is_error=False.""" class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="test_tool", description="Test tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, "required": ["param"], @@ -2751,10 +2972,10 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri ] ) ) - self.session.call_tool = AsyncMock( + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult( content=[types.TextContent(type="text", text="Success")], - isError=False, + is_error=False, ) ) @@ -2771,7 +2992,7 @@ def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: async def test_mcp_tool_is_error_propagates_through_function_middleware(): - """Test that MCP isError=True propagates as ToolExecutionException through function middleware.""" + """Test that MCP is_error=True propagates as ToolExecutionException through function middleware.""" error_seen_in_middleware = False class ErrorCheckMiddleware(FunctionMiddleware): @@ -2785,14 +3006,15 @@ async def process(self, context: FunctionInvocationContext, call_next): class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="test_tool", description="Test tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, "required": ["param"], @@ -2801,10 +3023,10 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri ] ) ) - self.session.call_tool = AsyncMock( + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult( content=[types.TextContent(type="text", text="MCP error occurred")], - isError=True, + is_error=True, ) ) @@ -2837,8 +3059,9 @@ async def test_local_mcp_server_prompt_execution(): class TestMCPTool(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_prompts = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_prompts = AsyncMock( return_value=types.ListPromptsResult( prompts=[ types.Prompt( @@ -2849,7 +3072,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri ] ) ) - self.session.get_prompt = AsyncMock( + mock_session.get_prompt = AsyncMock( return_value=types.GetPromptResult( description="Generated prompt", messages=[ @@ -2900,14 +3123,15 @@ async def test_mcp_tool_approval_mode(approval_mode, expected_approvals): class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="tool_one", description="First tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, }, @@ -2915,7 +3139,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri types.Tool( name="tool_two", description="Second tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, }, @@ -2977,14 +3201,15 @@ async def test_mcp_tool_allowed_tools(allowed_tools, expected_count, expected_na class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="tool_one", description="First tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, }, @@ -2992,7 +3217,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri types.Tool( name="tool_two", description="Second tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, }, @@ -3000,7 +3225,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri types.Tool( name="tool_three", description="Third tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, }, @@ -3039,29 +3264,20 @@ def test_mcp_transport_subclasses_accept_progressive_disclosure_options() -> Non use_progressive_disclosure=True, always_load=["search"], ) - websocket = MCPWebsocketTool( - name="ws", - url="wss://example.com/mcp", - use_progressive_disclosure=True, - always_load=["search"], - ) assert stdio.use_progressive_disclosure is True assert http.use_progressive_disclosure is True - assert websocket.use_progressive_disclosure is True assert stdio.always_load == ["search"] assert http.always_load == ["search"] - assert websocket.always_load == ["search"] def test_mcp_transport_subclasses_forward_host_payload_limit() -> None: tools = [ MCPStdioTool(name="stdio", command="python", max_host_payload_size_bytes=101), MCPStreamableHTTPTool(name="http", url="https://example.com/mcp", max_host_payload_size_bytes=102), - MCPWebsocketTool(name="ws", url="wss://example.com/mcp", max_host_payload_size_bytes=103), ] - assert [tool.max_host_payload_size_bytes for tool in tools] == [101, 102, 103] + assert [tool.max_host_payload_size_bytes for tool in tools] == [101, 102] def test_mcp_progressive_disclosure_requires_loading_tools() -> None: @@ -3098,7 +3314,7 @@ def _progressive_tool_list_page(*, tools: list[types.Tool] | None = None) -> typ types.Tool( name="tool_one", description="First tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, "required": ["param"], @@ -3107,7 +3323,7 @@ def _progressive_tool_list_page(*, tools: list[types.Tool] | None = None) -> typ types.Tool( name="tool_two", description="Second tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"value": {"type": "integer"}}, "required": ["value"], @@ -3116,7 +3332,7 @@ def _progressive_tool_list_page(*, tools: list[types.Tool] | None = None) -> typ types.Tool( name="secret_tool", description="Secret tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"secret": {"type": "string"}}, }, @@ -3143,9 +3359,10 @@ async def _load_progressive_test_server( approval_mode=approval_mode, use_progressive_disclosure=True, ) - server.session = AsyncMock() - server.session.list_tools = AsyncMock(return_value=_progressive_tool_list_page(tools=tools)) - server.session.call_tool = AsyncMock( + mock_session = AsyncMock() + server.session = mock_session + mock_session.list_tools = AsyncMock(return_value=_progressive_tool_list_page(tools=tools)) + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult(content=[types.TextContent(type="text", text="ok")]) ) await server.load_tools() @@ -3165,12 +3382,12 @@ async def test_mcp_progressive_disclosure_filters_always_loaded_loader_name_coll types.Tool( name="list_mcp_tools", description="Remote tool whose local name collides with the list loader.", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), types.Tool( name="tool_one", description="First tool", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), ], ) @@ -3218,12 +3435,12 @@ async def test_mcp_progressive_list_mcp_tools_skips_loader_name_collisions() -> types.Tool( name="list_mcp_tools", description="Remote tool whose local name collides with the list loader.", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), types.Tool( name="tool_one", description="First tool", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), ], ) @@ -3532,7 +3749,7 @@ async def test_mcp_progressive_load_tool_rejects_loader_name_collision() -> None types.Tool( name="load_tool", description="Remote tool whose local name collides with the load loader.", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), ], ) @@ -3622,14 +3839,15 @@ def provider(kwargs: dict[str, Any]) -> dict[str, str]: header_provider=provider, use_progressive_disclosure=True, ) - server.session = AsyncMock() - server.session.list_tools = AsyncMock( + sdk_client = AsyncMock() + sdk_client.session = AsyncMock() + sdk_client.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="greet", description="Says hello", - inputSchema={ + input_schema={ "type": "object", "properties": {"name": {"type": "string"}}, "required": ["name"], @@ -3638,9 +3856,10 @@ def provider(kwargs: dict[str, Any]) -> dict[str, str]: ] ) ) - server.session.call_tool = AsyncMock( + sdk_client.call_tool = AsyncMock( return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) ) + server._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) await server.load_tools() load_tool = server.functions[1] load_context = FunctionInvocationContext( @@ -3669,7 +3888,7 @@ def provider(kwargs: dict[str, Any]) -> dict[str, str]: assert result[0].text == "Hello!" assert provider_received[0]["some_token"] == "my-secret" - call_args = server.session.call_tool.call_args # type: ignore[union-attr] + call_args = sdk_client.call_tool.call_args assert call_args.kwargs.get("arguments", {}).get("name") == "Alice" assert "some_token" not in call_args.kwargs.get("arguments", {}) @@ -3683,13 +3902,6 @@ def test_local_mcp_stdio_tool_init(): assert tool.args == ["hello"] -def test_local_mcp_websocket_tool_init(): - """Test MCPWebsocketTool initialization.""" - tool = MCPWebsocketTool(name="test", url="ws://localhost:8080") - assert tool.name == "test" - assert tool.url == "ws://localhost:8080" - - def test_local_mcp_streamable_http_tool_init(): """Test MCPStreamableHTTPTool initialization.""" tool = MCPStreamableHTTPTool(name="test", url="http://localhost:8080") @@ -3697,6 +3909,16 @@ def test_local_mcp_streamable_http_tool_init(): assert tool.url == "http://localhost:8080" +def test_mcp_websocket_tool_is_deprecated() -> None: + from agent_framework import MCPWebsocketTool # ty: ignore[deprecated] + + with pytest.warns(DeprecationWarning, match="MCP WebSocket transport was removed in MCP v2"): + tool = MCPWebsocketTool(name="test", url="ws://localhost:8080") # pyright: ignore[reportDeprecated] # ty: ignore[deprecated] + + with pytest.raises(RuntimeError, match="Use MCPStreamableHTTPTool instead"): + tool.get_mcp_client() + + # Integration test @pytest.mark.flaky @pytest.mark.integration @@ -3804,9 +4026,7 @@ async def test_mcp_tool_message_handler_notification(): tool.load_prompts = AsyncMock() # type: ignore[method-assign] # Test tools list changed notification - tools_notification = Mock(spec=types.ServerNotification) - tools_notification.root = Mock() - tools_notification.root.method = "notifications/tools/list_changed" + tools_notification = types.ToolListChangedNotification() result = await tool.message_handler(tools_notification) # type: ignore[func-returns-value] assert result is None @@ -3818,9 +4038,7 @@ async def test_mcp_tool_message_handler_notification(): tool.load_tools.reset_mock() # Test prompts list changed notification - prompts_notification = Mock(spec=types.ServerNotification) - prompts_notification.root = Mock() - prompts_notification.root.method = "notifications/prompts/list_changed" + prompts_notification = types.PromptListChangedNotification() result = await tool.message_handler(prompts_notification) # type: ignore[func-returns-value] assert result is None @@ -3828,14 +4046,405 @@ async def test_mcp_tool_message_handler_notification(): tool.load_prompts.assert_called_once() # Test unhandled notification - unknown_notification = Mock(spec=types.ServerNotification) - unknown_notification.root = Mock() - unknown_notification.root.method = "notifications/unknown" + unknown_notification = types.ResourceListChangedNotification() result = await tool.message_handler(unknown_notification) # type: ignore[func-returns-value] assert result is None +async def test_mcp_tool_refreshes_catalogs_from_modern_subscription() -> None: + from mcp.client.subscriptions import PromptsListChanged, ToolsListChanged + from mcp.shared.subscriptions import SUBSCRIPTION_ID_META_KEY + + tools_refreshed = asyncio.Event() + prompts_refreshed = asyncio.Event() + listen_entered = asyncio.Event() + listen_exited = asyncio.Event() + keep_subscription_open = asyncio.Event() + tool_load_count = 0 + prompt_load_count = 0 + + async def load_tools() -> None: + nonlocal tool_load_count + tool_load_count += 1 + if tool_load_count == 2: + tools_refreshed.set() + + async def load_prompts() -> None: + nonlocal prompt_load_count + prompt_load_count += 1 + if prompt_load_count == 2: + prompts_refreshed.set() + + async def events() -> AsyncIterator[ToolsListChanged | PromptsListChanged]: + yield ToolsListChanged() + yield PromptsListChanged() + await keep_subscription_open.wait() + + @contextlib.asynccontextmanager + async def listen_context() -> AsyncGenerator[AsyncIterator[ToolsListChanged | PromptsListChanged]]: + listen_entered.set() + try: + yield events() + finally: + listen_exited.set() + + capabilities = types.ServerCapabilities( + tools=types.ToolsCapability(list_changed=True), + prompts=types.PromptsCapability(list_changed=True), + ) + sdk_client = _mock_sdk_client(capabilities=capabilities, protocol_version="2026-07-28") + sdk_client.listen = Mock(return_value=listen_context()) + tool = MCPStdioTool(name="test_tool", command="unused") + tool.load_tools = load_tools # type: ignore[method-assign] # ty: ignore[invalid-assignment] + tool.load_prompts = load_prompts # type: ignore[method-assign] # ty: ignore[invalid-assignment] + + with patch("mcp.Client", return_value=sdk_client): + async with tool: + await asyncio.wait_for(listen_entered.wait(), timeout=1) + sdk_client.listen.assert_called_once_with( + tools_list_changed=True, + prompts_list_changed=True, + ) + await asyncio.wait_for(tools_refreshed.wait(), timeout=1) + await asyncio.wait_for(prompts_refreshed.wait(), timeout=1) + + subscription_meta = {SUBSCRIPTION_ID_META_KEY: "listen-1"} + await tool.message_handler( + types.ToolListChangedNotification(params=types.NotificationParams(_meta=subscription_meta)) + ) + await tool.message_handler( + types.PromptListChangedNotification(params=types.NotificationParams(_meta=subscription_meta)) + ) + await asyncio.sleep(0) + assert tool_load_count == 2 + assert prompt_load_count == 2 + + assert listen_exited.is_set() + + +async def test_mcp_tool_reuses_and_closes_modern_catalog_subscription() -> None: + from mcp.client.subscriptions import PromptsListChanged, ToolsListChanged + + listen_entered = asyncio.Event() + never_set = asyncio.Event() + enter_count = 0 + exit_count = 0 + + async def events() -> AsyncIterator[ToolsListChanged | PromptsListChanged]: + await never_set.wait() + yield ToolsListChanged() + + @contextlib.asynccontextmanager + async def listen_context() -> AsyncGenerator[AsyncIterator[ToolsListChanged | PromptsListChanged]]: + nonlocal enter_count, exit_count + enter_count += 1 + listen_entered.set() + try: + yield events() + finally: + exit_count += 1 + + capabilities = types.ServerCapabilities( + tools=types.ToolsCapability(list_changed=True), + prompts=types.PromptsCapability(list_changed=True), + ) + sdk_client = _mock_sdk_client(capabilities=capabilities, protocol_version="2026-07-28") + sdk_client.listen = Mock(side_effect=lambda **_: listen_context()) + tool = MCPStdioTool(name="test_tool", command="unused") + tool.load_tools = AsyncMock() # type: ignore[method-assign] + tool.load_prompts = AsyncMock() # type: ignore[method-assign] + + with patch("mcp.Client", return_value=sdk_client): + async with tool: + await asyncio.wait_for(listen_entered.wait(), timeout=1) + subscription_task = tool._capability_list_subscription_task + assert subscription_task is not None + + await tool.connect() + + sdk_client.listen.assert_called_once_with( + tools_list_changed=True, + prompts_list_changed=True, + ) + assert tool._capability_list_subscription_task is subscription_task + assert not subscription_task.done() + + assert subscription_task.done() + assert tool._capability_list_subscription_task is None + assert enter_count == 1 + assert exit_count == 1 + + +@pytest.mark.parametrize("termination", ["clean", "lost"]) +async def test_mcp_tool_reopens_catalog_subscription_after_stream_termination( + monkeypatch: pytest.MonkeyPatch, + termination: str, +) -> None: + from mcp.client.subscriptions import SubscriptionLost, ToolsListChanged + + second_listen_entered = asyncio.Event() + block_second_stream = asyncio.Event() + listen_count = 0 + + async def first_events() -> AsyncIterator[ToolsListChanged]: + if termination == "lost": + raise SubscriptionLost("connection dropped") + if False: + yield ToolsListChanged() # pragma: no cover + + async def blocking_events() -> AsyncIterator[ToolsListChanged]: + await block_second_stream.wait() + yield ToolsListChanged() + + @contextlib.asynccontextmanager + async def listen_context() -> AsyncGenerator[AsyncIterator[ToolsListChanged]]: + nonlocal listen_count + listen_count += 1 + if listen_count == 2: + second_listen_entered.set() + yield blocking_events() + else: + yield first_events() + + monkeypatch.setattr("agent_framework._mcp._MCP_SUBSCRIPTION_RETRY_INITIAL_DELAY", 0) + capabilities = types.ServerCapabilities(tools=types.ToolsCapability(list_changed=True)) + sdk_client = _mock_sdk_client(capabilities=capabilities, protocol_version="2026-07-28") + sdk_client.listen = Mock(side_effect=lambda **_: listen_context()) + tool = MCPStdioTool(name="test_tool", command="unused", load_prompts=False) + tool.load_tools = AsyncMock() # type: ignore[method-assign] + + with patch("mcp.Client", return_value=sdk_client): + async with tool: + await asyncio.wait_for(second_listen_entered.wait(), timeout=1) + subscription_task = tool._capability_list_subscription_task + assert subscription_task is not None + assert not subscription_task.done() + assert tool.load_tools.await_count >= 2 + + await tool._listen_capability_list_changes(sdk_client) + assert tool._capability_list_subscription_task is subscription_task + assert listen_count == 2 + + assert subscription_task.done() + assert tool._capability_list_subscription_task is None + + +async def test_mcp_tool_close_cancels_subscription_recovery_backoff( + monkeypatch: pytest.MonkeyPatch, +) -> None: + from mcp.client.subscriptions import SubscriptionLost, ToolsListChanged + + refresh_finished = asyncio.Event() + + async def lost_events() -> AsyncIterator[ToolsListChanged]: + raise SubscriptionLost("connection dropped") + yield ToolsListChanged() # pragma: no cover + + @contextlib.asynccontextmanager + async def listen_context() -> AsyncGenerator[AsyncIterator[ToolsListChanged]]: + yield lost_events() + + async def load_tools() -> None: + refresh_finished.set() + + monkeypatch.setattr("agent_framework._mcp._MCP_SUBSCRIPTION_RETRY_INITIAL_DELAY", 60) + capabilities = types.ServerCapabilities(tools=types.ToolsCapability(list_changed=True)) + sdk_client = _mock_sdk_client(capabilities=capabilities, protocol_version="2026-07-28") + sdk_client.listen = Mock(side_effect=lambda **_: listen_context()) + tool = MCPStdioTool(name="test_tool", command="unused", load_prompts=False) + tool.load_tools = load_tools # type: ignore[method-assign] # ty: ignore[invalid-assignment] + + with patch("mcp.Client", return_value=sdk_client): + await tool.connect() + await asyncio.wait_for(refresh_finished.wait(), timeout=1) + subscription_task = tool._capability_list_subscription_task + assert subscription_task is not None + await tool.close() + + assert subscription_task.done() + assert subscription_task.cancelled() + assert tool._capability_list_subscription_task is None + sdk_client.listen.assert_called_once() + + +async def test_mcp_tool_replaces_modern_catalog_subscription_on_reset() -> None: + from mcp.client.subscriptions import PromptsListChanged, ToolsListChanged + + second_listen_entered = asyncio.Event() + never_set = asyncio.Event() + enter_count = 0 + exit_count = 0 + + async def events() -> AsyncIterator[ToolsListChanged | PromptsListChanged]: + await never_set.wait() + yield ToolsListChanged() + + @contextlib.asynccontextmanager + async def listen_context() -> AsyncGenerator[AsyncIterator[ToolsListChanged | PromptsListChanged]]: + nonlocal enter_count, exit_count + enter_count += 1 + if enter_count == 2: + second_listen_entered.set() + try: + yield events() + finally: + exit_count += 1 + + capabilities = types.ServerCapabilities( + tools=types.ToolsCapability(list_changed=True), + prompts=types.PromptsCapability(list_changed=True), + ) + sdk_client = _mock_sdk_client(capabilities=capabilities, protocol_version="2026-07-28") + sdk_client.listen = Mock(side_effect=lambda **_: listen_context()) + tool = MCPStdioTool(name="test_tool", command="unused") + tool.load_tools = AsyncMock() # type: ignore[method-assign] + tool.load_prompts = AsyncMock() # type: ignore[method-assign] + + with patch("mcp.Client", return_value=sdk_client): + async with tool: + first_task = tool._capability_list_subscription_task + assert first_task is not None + + await tool.connect(reset=True) + await asyncio.wait_for(second_listen_entered.wait(), timeout=1) + + second_task = tool._capability_list_subscription_task + assert second_task is not None + assert second_task is not first_task + assert first_task.done() + assert enter_count == 2 + assert exit_count == 1 + + assert second_task.done() + assert tool._capability_list_subscription_task is None + assert exit_count == 2 + + +async def test_mcp_tool_uses_legacy_catalog_notifications_when_subscription_is_unsupported() -> None: + from mcp.client.subscriptions import ListenNotSupportedError + + listen_attempted = asyncio.Event() + tools_refreshed = asyncio.Event() + prompts_refreshed = asyncio.Event() + tool_load_count = 0 + prompt_load_count = 0 + + async def load_tools() -> None: + nonlocal tool_load_count + tool_load_count += 1 + if tool_load_count == 2: + tools_refreshed.set() + + async def load_prompts() -> None: + nonlocal prompt_load_count + prompt_load_count += 1 + if prompt_load_count == 2: + prompts_refreshed.set() + + @contextlib.asynccontextmanager + async def unsupported_listen() -> AsyncGenerator[Any]: + listen_attempted.set() + raise ListenNotSupportedError("2025-11-25") + yield None # pragma: no cover + + capabilities = types.ServerCapabilities( + tools=types.ToolsCapability(list_changed=True), + prompts=types.PromptsCapability(list_changed=True), + ) + sdk_client = _mock_sdk_client(capabilities=capabilities) + sdk_client.listen = Mock(return_value=unsupported_listen()) + tool = MCPStdioTool(name="test_tool", command="unused") + tool.load_tools = load_tools # type: ignore[method-assign] # ty: ignore[invalid-assignment] + tool.load_prompts = load_prompts # type: ignore[method-assign] # ty: ignore[invalid-assignment] + + with patch("mcp.Client", return_value=sdk_client): + async with tool: + await asyncio.wait_for(listen_attempted.wait(), timeout=1) + await tool.message_handler(types.ToolListChangedNotification()) + await tool.message_handler(types.PromptListChangedNotification()) + await asyncio.wait_for(tools_refreshed.wait(), timeout=1) + await asyncio.wait_for(prompts_refreshed.wait(), timeout=1) + + assert tool_load_count == 2 + assert prompt_load_count == 2 + + +async def test_caller_owned_client_warns_when_legacy_catalog_refresh_is_caller_managed( + caplog: pytest.LogCaptureFixture, +) -> None: + from mcp.client.subscriptions import ListenNotSupportedError + + @contextlib.asynccontextmanager + async def unsupported_listen() -> AsyncGenerator[Any]: + raise ListenNotSupportedError("2025-11-25") + yield None # pragma: no cover + + capabilities = types.ServerCapabilities(tools=types.ToolsCapability(list_changed=True)) + sdk_client = _mock_sdk_client(capabilities=capabilities, protocol_version="2025-11-25") + sdk_client.listen = Mock(return_value=unsupported_listen()) + sdk_client.list_tools = AsyncMock(return_value=types.ListToolsResult(tools=[])) + tool = MCPStdioTool( + name="test", + command="unused", + mcp_client=sdk_client, + load_prompts=False, + ) + + with caplog.at_level(logging.WARNING, logger="agent_framework"): + await tool.connect() + + assert "Automatic legacy catalog refresh is unavailable for a caller-owned Client" in caplog.text + assert tool._capability_list_subscription_task is None + + await tool.close() + + +async def test_mcp_tool_cleans_up_when_catalog_subscription_setup_fails() -> None: + @contextlib.asynccontextmanager + async def rejected_listen() -> AsyncGenerator[Any]: + raise RuntimeError("subscription rejected") + yield None # pragma: no cover + + capabilities = types.ServerCapabilities(tools=types.ToolsCapability(list_changed=True)) + sdk_client = _mock_sdk_client(capabilities=capabilities, protocol_version="2026-07-28") + sdk_client.listen = Mock(return_value=rejected_listen()) + tool = MCPStdioTool(name="test_tool", command="unused", load_prompts=False) + + with ( + patch("mcp.Client", return_value=sdk_client), + pytest.raises(RuntimeError, match="subscription rejected"), + ): + await tool._connect_on_owner() + + sdk_client.__aexit__.assert_awaited_once() + assert tool.session is None + assert tool.is_connected is False + + +async def test_mcp_tool_closes_subscription_before_reload_tasks_and_exit_stack() -> None: + tool = MCPStdioTool(name="test_tool", command="unused") + cleanup_order: list[str] = [] + + async def cancel_subscription() -> None: + cleanup_order.append("subscription") + + async def cancel_reloads() -> None: + cleanup_order.append("reloads") + + async def close_stack() -> None: + cleanup_order.append("exit_stack") + + with ( + patch.object(tool, "_cancel_capability_list_subscription", side_effect=cancel_subscription), + patch.object(tool, "_cancel_pending_reload_tasks", side_effect=cancel_reloads), + patch.object(tool, "_safe_close_exit_stack", side_effect=close_stack), + ): + await tool._close_on_owner() + + assert cleanup_order == ["subscription", "reloads", "exit_stack"] + + async def test_mcp_tool_message_handler_error(): """Test that message_handler gracefully handles exceptions by logging and returning None.""" tool = MCPStdioTool(name="test_tool", command="python") @@ -3869,9 +4478,7 @@ async def slow_load_tools(): tool.load_tools = slow_load_tools # type: ignore[assignment] # ty: ignore[invalid-assignment] - tools_notification = Mock(spec=types.ServerNotification) - tools_notification.root = Mock() - tools_notification.root.method = "notifications/tools/list_changed" + tools_notification = types.ToolListChangedNotification() # message_handler must return immediately even though load_tools blocks. await tool.message_handler(tools_notification) @@ -3901,9 +4508,7 @@ async def test_mcp_tool_message_handler_reload_failure_is_logged( side_effect=RuntimeError(f"connection lost: {private_error_detail}") ) - tools_notification = Mock(spec=types.ServerNotification) - tools_notification.root = Mock() - tools_notification.root.method = "notifications/tools/list_changed" + tools_notification = types.ToolListChangedNotification() await tool.message_handler(tools_notification) # Let the background task run — it should not propagate the exception. @@ -3938,9 +4543,7 @@ async def blocking_load_tools(): tool.load_tools = blocking_load_tools # type: ignore[assignment] # ty: ignore[invalid-assignment] - notification = Mock(spec=types.ServerNotification) - notification.root = Mock() - notification.root.method = "notifications/tools/list_changed" + notification = types.ToolListChangedNotification() # First notification — starts a blocking reload task. await tool.message_handler(notification) @@ -4011,12 +4614,12 @@ async def test_mcp_tool_sampling_defaults_stay_silent_until_callback_is_used(): tool = MCPStdioTool(name="test_tool", command="python") callback = getattr(MCPTool, "sampling_callback") # noqa: B009 - assert "2027-07-28" in getattr(callback, "__deprecated__", "") + assert "eligible for removal" in getattr(callback, "__deprecated__", "") params = Mock() params.messages = [] - with pytest.warns(DeprecationWarning, match="MCP sampling.*2027-07-28"): + with pytest.warns(DeprecationWarning, match="MCP sampling.*eligible for removal"): result = await _invoke_sampling_callback(tool, params) assert isinstance(result, types.ErrorData) @@ -4024,7 +4627,7 @@ async def test_mcp_tool_sampling_defaults_stay_silent_until_callback_is_used(): async def test_mcp_tool_sampling_configuration_warns_once(): """Each sampling option warns at setup, without warning again on callback use.""" - with pytest.warns(DeprecationWarning, match="MCP sampling.*2027-07-28") as warning_info: + with pytest.warns(DeprecationWarning, match="MCP sampling.*eligible for removal") as warning_info: tool = MCPStdioTool( name="test_tool", command="python", @@ -4038,12 +4641,12 @@ async def test_mcp_tool_sampling_configuration_warns_once(): params = Mock() params.messages = [] - params.maxTokens = 128 - params.systemPrompt = None + params.max_tokens = 128 + params.system_prompt = None params.tools = None params.temperature = None - params.stopSequences = None - params.toolChoice = None + params.stop_sequences = None + params.tool_choice = None with warnings.catch_warnings(record=True) as caught: warnings.simplefilter("always", DeprecationWarning) @@ -4063,13 +4666,41 @@ async def test_mcp_tool_sampling_configuration_warns_once(): ) def test_mcp_tool_each_sampling_option_warns(sampling_option: dict[str, Any]): """Each non-default sampling option enables the setup warning.""" - with pytest.warns(DeprecationWarning, match="MCP sampling.*2027-07-28") as warning_info: + with pytest.warns(DeprecationWarning, match="MCP sampling.*eligible for removal") as warning_info: MCPStdioTool(name="test_tool", command="python", **sampling_option) assert len(warning_info) == 1 -async def test_mcp_tool_sampling_callback_denies_by_default(): +@pytest.mark.parametrize( + "connection", + [ + {"mcp_client": Mock()}, + {"session": Mock(spec=ClientSession)}, + ], +) +def test_mcp_tool_warns_when_sampling_options_are_ignored_for_caller_owned_connection( + connection: dict[str, Any], + caplog: pytest.LogCaptureFixture, +) -> None: + with ( + caplog.at_level(logging.WARNING, logger="agent_framework"), + pytest.warns(DeprecationWarning, match="MCP sampling"), + ): + MCPStdioTool( + name="test", + command="unused", + client=AsyncMock(), + sampling_approval_callback=_approve, + sampling_max_tokens=512, + sampling_max_requests=2, + **connection, + ) + + assert "sampling options are ignored for a caller-owned connection" in caplog.text + + +async def test_mcp_tool_sampling_callback_denies_by_default(): """Sampling is denied when no approval callback is configured (safe default).""" tool = MCPStdioTool(name="test_tool", command="python") mock_chat_client = AsyncMock() @@ -4077,7 +4708,7 @@ async def test_mcp_tool_sampling_callback_denies_by_default(): params = Mock() params.messages = [] - params.maxTokens = 128 + params.max_tokens = 128 result = await _invoke_sampling_callback(tool, params) @@ -4096,7 +4727,7 @@ async def test_mcp_tool_sampling_callback_denied_by_callback(): params = Mock() params.messages = [] - params.maxTokens = 128 + params.max_tokens = 128 result = await _invoke_sampling_callback(tool, params) @@ -4118,7 +4749,7 @@ def boom(_params: object) -> bool: params = Mock() params.messages = [] - params.maxTokens = 128 + params.max_tokens = 128 result = await _invoke_sampling_callback(tool, params) @@ -4141,11 +4772,11 @@ async def approve(_params: object) -> bool: params = Mock() params.messages = [types.PromptMessage(role="user", content=types.TextContent(type="text", text="Hi"))] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4170,11 +4801,11 @@ async def test_mcp_tool_sampling_callback_clamps_max_tokens(): params = Mock() params.messages = [types.PromptMessage(role="user", content=types.TextContent(type="text", text="Hi"))] params.temperature = None - params.maxTokens = 1_000_000 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 1_000_000 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4198,11 +4829,11 @@ async def test_mcp_tool_sampling_callback_does_not_clamp_under_cap(): params = Mock() params.messages = [types.PromptMessage(role="user", content=types.TextContent(type="text", text="Hi"))] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4227,11 +4858,11 @@ def make_params() -> Mock: params = Mock() params.messages = [types.PromptMessage(role="user", content=types.TextContent(type="text", text="Hi"))] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None return params first = await _invoke_sampling_callback(tool, make_params()) @@ -4269,11 +4900,11 @@ async def test_mcp_tool_sampling_callback_chat_client_exception(): mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4315,11 +4946,11 @@ async def test_mcp_tool_sampling_callback_no_valid_content(): mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4339,11 +4970,11 @@ async def test_mcp_tool_sampling_callback_no_response_and_successful_message_cre params = Mock() params.messages = [types.PromptMessage(role="user", content=types.TextContent(type="text", text="Hi"))] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None tool.client.get_response.return_value = None no_response = await _invoke_sampling_callback(tool, params) @@ -4400,21 +5031,21 @@ async def test_mcp_tool_sampling_callback_returns_tool_use_results(): params = Mock() params.messages = [types.PromptMessage(role="user", content=types.TextContent(type="text", text="Answer"))] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = [ - types.Tool(name="Answer", description="Return an answer", inputSchema={"type": "object"}), - types.Tool(name="Citations", description="Return source citations", inputSchema={"type": "object"}), + types.Tool(name="Answer", description="Return an answer", input_schema={"type": "object"}), + types.Tool(name="Citations", description="Return source citations", input_schema={"type": "object"}), ] - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) assert isinstance(result, types.CreateMessageResultWithTools) assert result.role == "assistant" assert result.model == "test-model" - assert result.stopReason == "toolUse" + assert result.stop_reason == "toolUse" assert isinstance(result.content, list) tool_use_contents = [content for content in result.content if isinstance(content, types.ToolUseContent)] assert tool_use_contents == result.content @@ -4454,11 +5085,11 @@ async def test_mcp_tool_sampling_callback_forwards_system_prompt(): mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = "You are a helpful assistant" + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = "You are a helpful assistant" params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4485,7 +5116,7 @@ async def test_mcp_tool_sampling_callback_forwards_tools(): mcp_tool = types.Tool( name="get_weather", description="Get weather", - inputSchema={"type": "object", "properties": {"city": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"city": {"type": "string"}}}, ) params = Mock() @@ -4495,11 +5126,11 @@ async def test_mcp_tool_sampling_callback_forwards_tools(): mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = [mcp_tool] - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4535,11 +5166,11 @@ async def test_mcp_tool_sampling_callback_forwards_tool_choice(): mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = types.ToolChoice(mode="required") + params.tool_choice = types.ToolChoice(mode="required") result = await _invoke_sampling_callback(tool, params) @@ -4570,11 +5201,11 @@ async def test_mcp_tool_sampling_callback_forwards_empty_system_prompt(): mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = "" + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = "" params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4605,11 +5236,11 @@ async def test_mcp_tool_sampling_callback_forwards_empty_tools_list(): mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = [] - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4640,11 +5271,11 @@ async def test_mcp_tool_sampling_callback_forwards_generation_params_in_options( mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = 0.7 - params.maxTokens = 256 - params.stopSequences = ["STOP"] - params.systemPrompt = None + params.max_tokens = 256 + params.stop_sequences = ["STOP"] + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4681,11 +5312,11 @@ async def test_mcp_tool_sampling_callback_omits_temperature_when_none(): mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = None - params.maxTokens = 100 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 100 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4718,11 +5349,11 @@ async def test_mcp_tool_sampling_callback_always_passes_max_tokens(): mock_message.content.text = "Test question" params.messages = [mock_message] params.temperature = None - params.maxTokens = 200 - params.stopSequences = None - params.systemPrompt = None + params.max_tokens = 200 + params.stop_sequences = None + params.system_prompt = None params.tools = None - params.toolChoice = None + params.tool_choice = None result = await _invoke_sampling_callback(tool, params) @@ -4733,85 +5364,493 @@ async def test_mcp_tool_sampling_callback_always_passes_max_tokens(): async def test_connect_sampling_capabilities_with_client(): - """Test connect() passes sampling_capabilities to ClientSession when client is set.""" + """Test connect() uses the SDK's auto mode and advertises sampling when a chat client is configured.""" tool = MCPStdioTool(name="test", command="test-command", load_tools=False, load_prompts=False) tool.client = Mock() - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] + with patch("mcp.Client") as mock_client_class: + sdk_client = _mock_sdk_client(protocol_version="2026-07-28") + mock_client_class.return_value = sdk_client - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session = AsyncMock() - mock_session._request_id = 1 + async with tool: + call_kwargs = mock_client_class.call_args.kwargs + assert "mode" not in call_kwargs + sampling_caps = call_kwargs.get("sampling_capabilities") + assert sampling_caps is not None + assert isinstance(sampling_caps, types.SamplingCapability) + assert sampling_caps.tools is not None + assert isinstance(sampling_caps.tools, types.SamplingToolsCapability) - session_cm = AsyncMock() - session_cm.__aenter__ = AsyncMock(return_value=mock_session) - session_cm.__aexit__ = AsyncMock(return_value=None) - mock_session_class.return_value = session_cm - await tool.connect() +async def test_connect_no_sampling_capabilities_without_client(): + """Test connect() uses the SDK's auto mode and omits sampling capabilities without a chat client.""" + tool = MCPStdioTool(name="test", command="test-command", load_tools=False, load_prompts=False) - call_kwargs = mock_session_class.call_args.kwargs - sampling_caps = call_kwargs.get("sampling_capabilities") - assert sampling_caps is not None - assert isinstance(sampling_caps, types.SamplingCapability) - assert sampling_caps.tools is not None - assert isinstance(sampling_caps.tools, types.SamplingToolsCapability) + with patch("mcp.Client") as mock_client_class: + sdk_client = _mock_sdk_client(protocol_version="2026-07-28") + mock_client_class.return_value = sdk_client + + try: + await tool.connect() + call_kwargs = mock_client_class.call_args.kwargs + assert "mode" not in call_kwargs + assert call_kwargs.get("sampling_capabilities") is None + finally: + await tool.close() -async def test_connect_no_sampling_capabilities_without_client(): - """Test connect() does not pass sampling_capabilities when no client is set.""" +async def test_connect_preserves_request_timeout_over_24_hours() -> None: + tool = MCPStdioTool( + name="test", + command="test-command", + load_tools=False, + load_prompts=False, + request_timeout=90_000, + ) + + with patch("mcp.Client") as mock_client_class: + mock_client_class.return_value = _mock_sdk_client(protocol_version="2026-07-28") + + async with tool: + assert mock_client_class.call_args.kwargs["read_timeout_seconds"] == 90_000 + + +async def test_connect_retains_and_close_clears_sdk_client() -> None: + """Test a framework-owned Client and its session share one lifecycle.""" tool = MCPStdioTool(name="test", command="test-command", load_tools=False, load_prompts=False) - # No client set + sdk_client = _mock_sdk_client(protocol_version="2026-07-28") + + with patch("mcp.Client", return_value=sdk_client): + await tool.connect() + try: + connection = tool._connection + with pytest.warns(DeprecationWarning, match=r"MCPTool\.session.*removed in vNext"): + assert tool.session is None + assert tool._connection is connection + with pytest.raises(ValueError, match="uses a high-level MCP Client"): + tool.session = sdk_client.session + with pytest.raises(ValueError, match="uses a high-level MCP Client"): + tool.session = None + await tool.connect(reset=True) + reset_connection = tool._connection + assert reset_connection is not None + assert reset_connection.client is sdk_client + with pytest.warns(DeprecationWarning, match=r"MCPTool\.session.*removed in vNext"): + assert tool.session is None + finally: + await tool.close() + + assert tool._connection is None + with pytest.warns(DeprecationWarning, match=r"MCPTool\.session.*removed in vNext"): + assert tool.session is None + + +async def test_call_tool_uses_sdk_client_for_framework_owned_connection() -> None: + """Test a standard tool call uses the retained high-level Client.""" + session = Mock(spec=ClientSession) + session.list_tools = AsyncMock( + return_value=types.ListToolsResult( + result_type="complete", + tools=[types.Tool(name="greet", input_schema={"type": "object", "properties": {}})], + ) + ) + session.call_tool = AsyncMock() + sdk_client = _mock_sdk_client(session=session, protocol_version="2026-07-28") + sdk_client.call_tool = AsyncMock( + return_value=types.CallToolResult( + result_type="complete", + content=[types.TextContent(type="text", text="Hello!")], + is_error=False, + ) + ) + tool = MCPStdioTool(name="test", command="test-command", load_prompts=False) + + with patch("mcp.Client", return_value=sdk_client): + async with tool: + result = await tool.call_tool("greet") + + assert _mcp_result_to_text(result) == "Hello!" + sdk_client.call_tool.assert_awaited_once_with("greet", arguments={}, meta=None) + session.call_tool.assert_not_awaited() + + +async def test_get_prompt_uses_sdk_client_for_framework_owned_connection() -> None: + """Test a standard prompt get uses the retained high-level Client.""" + session = Mock(spec=ClientSession) + session.list_prompts = AsyncMock( + return_value=types.ListPromptsResult( + result_type="complete", + prompts=[types.Prompt(name="summarize", arguments=[])], + ) + ) + session.get_prompt = AsyncMock() + sdk_client = _mock_sdk_client(session=session, protocol_version="2026-07-28") + sdk_client.get_prompt = AsyncMock( + return_value=types.GetPromptResult( + messages=[ + types.PromptMessage( + role="user", + content=types.TextContent(type="text", text="Summarize this."), + ) + ] + ) + ) + tool = MCPStdioTool(name="test", command="test-command", load_tools=False) + + with patch("mcp.Client", return_value=sdk_client): + async with tool: + result = await tool.get_prompt("summarize") + + assert "Summarize this." in result + sdk_client.get_prompt.assert_awaited_once_with("summarize", arguments={}) + session.get_prompt.assert_not_awaited() + + +async def test_catalog_loading_uses_sdk_client_cache() -> None: + """Test framework-owned catalog pagination uses the Client cache.""" + capabilities = types.ServerCapabilities( + tools=types.ToolsCapability(), + prompts=types.PromptsCapability(), + ) + session = Mock(spec=ClientSession) + session.list_tools = AsyncMock() + session.list_prompts = AsyncMock() + sdk_client = _mock_sdk_client( + session=session, + capabilities=capabilities, + protocol_version="2026-07-28", + ) + sdk_client.list_tools = AsyncMock( + side_effect=[ + types.ListToolsResult( + tools=[types.Tool(name="first_tool", input_schema={"type": "object", "properties": {}})], + next_cursor="tools-next", + ), + types.ListToolsResult( + tools=[types.Tool(name="second_tool", input_schema={"type": "object", "properties": {}})] + ), + ] + ) + sdk_client.list_prompts = AsyncMock( + side_effect=[ + types.ListPromptsResult( + prompts=[types.Prompt(name="first_prompt", arguments=[])], + next_cursor="prompts-next", + ), + types.ListPromptsResult(prompts=[types.Prompt(name="second_prompt", arguments=[])]), + ] + ) + tool = MCPStdioTool(name="test", command="test-command") + + with patch("mcp.Client", return_value=sdk_client): + async with tool: + assert [function.name for function in tool.functions] == [ + "first_tool", + "second_tool", + "first_prompt", + "second_prompt", + ] + + assert [awaited.kwargs for awaited in sdk_client.list_tools.await_args_list] == [ + {"cursor": None}, + {"cursor": "tools-next"}, + ] + assert [awaited.kwargs for awaited in sdk_client.list_prompts.await_args_list] == [ + {"cursor": None}, + {"cursor": "prompts-next"}, + ] + session.list_tools.assert_not_awaited() + session.list_prompts.assert_not_awaited() + + +async def test_catalog_loading_honors_positive_server_ttl() -> None: + from mcp.server import Server, ServerRequestContext + + tool_list_count = 0 + prompt_list_count = 0 + + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + nonlocal tool_list_count + tool_list_count += 1 + return types.ListToolsResult( + tools=[types.Tool(name="cached_tool", input_schema={"type": "object", "properties": {}})], + ttl_ms=60_000, + ) + + async def list_prompts( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListPromptsResult: + nonlocal prompt_list_count + prompt_list_count += 1 + return types.ListPromptsResult( + prompts=[types.Prompt(name="cached_prompt", arguments=[])], + ttl_ms=60_000, + ) + + server = Server( + "cache-server", + on_list_tools=list_tools, + on_list_prompts=list_prompts, + ) + tool = _mcp_tool_for_in_process_server(server, load_tools=True, load_prompts=True) + + async with tool: + await tool.load_tools() + await tool.load_prompts() + + assert tool_list_count == 1 + assert prompt_list_count == 1 + assert [function.name for function in tool.functions] == ["cached_tool", "cached_prompt"] + + +async def test_tool_catalog_cache_reuses_only_first_page() -> None: + from mcp.server import Server, ServerRequestContext + + requested_cursors: list[str | None] = [] + + async def list_tools( + _ctx: ServerRequestContext[Any], + params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + cursor = params.cursor if params is not None else None + requested_cursors.append(cursor) + if cursor is None: + return types.ListToolsResult( + tools=[types.Tool(name="first", input_schema={"type": "object", "properties": {}})], + next_cursor="second", + ttl_ms=60_000, + ) + assert cursor == "second" + return types.ListToolsResult( + tools=[types.Tool(name="second", input_schema={"type": "object", "properties": {}})], + ttl_ms=60_000, + ) + + server = Server("paginated-cache-server", on_list_tools=list_tools) + tool = _mcp_tool_for_in_process_server(server, load_tools=True, load_prompts=False) + + async with tool: + await tool.load_tools() + + assert requested_cursors == [None, "second", "second"] + assert [function.name for function in tool.functions] == ["first", "second"] + + +async def test_tool_catalog_cache_preserves_empty_snapshot() -> None: + from mcp.server import Server, ServerRequestContext + + list_count = 0 + + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + nonlocal list_count + list_count += 1 + return types.ListToolsResult(tools=[], ttl_ms=60_000) + + server = Server("empty-cache-server", on_list_tools=list_tools) + tool = _mcp_tool_for_in_process_server(server, load_tools=True, load_prompts=False) + + async with tool: + await tool.load_tools() + + assert list_count == 1 + assert tool.functions == [] + + +async def test_reconnect_replaces_catalog_cache() -> None: + from mcp.server import Server, ServerRequestContext + + list_count = 0 + + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + nonlocal list_count + list_count += 1 + return types.ListToolsResult( + tools=[types.Tool(name=f"tool_{list_count}", input_schema={"type": "object", "properties": {}})], + ttl_ms=60_000, + ) - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] + server = Server("reconnect-cache-server", on_list_tools=list_tools) + tool = _mcp_tool_for_in_process_server(server, load_tools=True, load_prompts=False) - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session = AsyncMock() - mock_session._request_id = 1 + async with tool: + await tool.load_tools() + assert list_count == 1 + assert [function.name for function in tool.functions] == ["tool_1"] + + await tool.connect(reset=True) + assert list_count == 2 + assert [function.name for function in tool.functions] == ["tool_2"] + + +async def test_modern_subscription_evicts_tool_catalog_cache() -> None: + from mcp.client._memory import InMemoryTransport + from mcp.server import Server, ServerRequestContext + from mcp.server.subscriptions import InMemorySubscriptionBus, ListenHandler, ToolsListChanged + + current_name = "first" + list_count = 0 + refreshed = asyncio.Event() + bus = InMemorySubscriptionBus() + listen_handler = ListenHandler(bus) + + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + nonlocal list_count + list_count += 1 + if list_count == 2: + refreshed.set() + return types.ListToolsResult( + tools=[types.Tool(name=current_name, input_schema={"type": "object", "properties": {}})], + ttl_ms=60_000, + ) + + server = Server( + "subscription-cache-server", + on_list_tools=list_tools, + on_subscriptions_listen=listen_handler, + ) + tool = _mcp_tool_for_in_process_server( + InMemoryTransport(server), + load_tools=True, + load_prompts=False, + ) + + async with tool: + assert _connected_client(tool).protocol_version == "2026-07-28" + await tool.load_tools() + assert list_count == 1 + + current_name = "second" + await bus.publish(ToolsListChanged()) + await asyncio.wait_for(refreshed.wait(), timeout=1) + await asyncio.gather(*tool._pending_reload_tasks) + + assert list_count == 2 + assert [function.name for function in tool.functions] == ["second"] + listen_handler.close() + + +async def test_caller_supplied_session_remains_uncached() -> None: + from mcp import Client + from mcp.server import Server, ServerRequestContext + + list_count = 0 + + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + nonlocal list_count + list_count += 1 + return types.ListToolsResult( + tools=[types.Tool(name="uncached", input_schema={"type": "object", "properties": {}})], + ttl_ms=60_000, + ) + + server = Server("session-cache-server", on_list_tools=list_tools) + + async with Client(server) as client: + tool = MCPStdioTool( + name="caller-owned", + command="unused", + session=client.session, + load_prompts=False, + ) + async with tool: + await tool.load_tools() + + assert list_count == 2 + + +async def test_authorization_identity_change_replaces_catalog_cache() -> None: + list_principals: list[str] = [] + + async def handle(request: Request) -> Response: + if request.method == "DELETE": + return Response(200) + if request.method == "GET": + return Response(405) + body = json.loads(request.content) + method = body["method"] + principal = request.headers.get("Authorization", "") + result: dict[str, Any] + if method == "server/discover": + result = { + "supportedVersions": ["2026-07-28"], + "capabilities": {"tools": {}}, + } + elif method == "tools/list": + list_principals.append(principal) + result = { + "resultType": "complete", + "ttlMs": 60_000, + "cacheScope": "private", + "tools": [ + {"name": "noop", "inputSchema": {"type": "object", "properties": {}}}, + {"name": f"{principal}-only", "inputSchema": {"type": "object", "properties": {}}}, + ], + } + elif method == "tools/call": + result = { + "resultType": "complete", + "content": [{"type": "text", "text": principal}], + "isError": False, + } + else: + raise AssertionError(f"Unexpected MCP method: {method}") + return Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": result}) - session_cm = AsyncMock() - session_cm.__aenter__ = AsyncMock(return_value=mock_session) - session_cm.__aexit__ = AsyncMock(return_value=None) - mock_session_class.return_value = session_cm + user_client = AsyncClient(transport=MockTransport(handle)) + tool = MCPStreamableHTTPTool( + name="identity-cache", + url="https://mcp.example/mcp", + http_client=user_client, + load_prompts=False, + header_provider=lambda kwargs: {"Authorization": kwargs.get("credential", "token-a")}, + ) + try: await tool.connect() + await tool.load_tools() + assert list_principals == ["token-a"] + + await tool.call_tool("noop", credential="token-b") + await tool.load_tools() - call_kwargs = mock_session_class.call_args.kwargs - assert call_kwargs.get("sampling_capabilities") is None + assert list_principals == ["token-a", "token-b"] + assert {function.name for function in tool.functions} == {"noop", "token-b-only"} + finally: + await tool.close() + await user_client.aclose() # Test error handling in connect() method async def test_connect_session_creation_failure(): - """Test connect() raises ToolException when ClientSession creation fails.""" + """Test connect() preserves the cause when SDK client construction fails.""" tool = MCPStdioTool(name="test", command="test-command") - # Mock successful transport creation - mock_transport = (Mock(), Mock()) # (read_stream, write_stream) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] - - # Mock ClientSession to raise an exception - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.side_effect = RuntimeError("Session creation failed") - + with patch("mcp.Client", side_effect=RuntimeError("Client creation failed")): with pytest.raises(ToolException) as exc_info: await tool.connect() assert "Failed to create MCP session" in str(exc_info.value) - assert "Session creation failed" in str(exc_info.value) # exception text is now part of the message - assert "Session creation failed" in str(exc_info.value.__cause__) + assert "Client creation failed" in str(exc_info.value) + assert "Client creation failed" in str(exc_info.value.__cause__) + await tool.close() @pytest.mark.parametrize("enable_sensitive_data", [True, False], indirect=True) @@ -4820,35 +5859,28 @@ async def test_connect_initialization_failure_http_no_command( enable_sensitive_data: bool, caplog: pytest.LogCaptureFixture, ) -> None: - """Test connect() when session.initialize() fails for HTTP tool (no command attribute).""" + """Test SDK negotiation failure details follow the sensitive-data policy.""" private_error_detail = "founder-secret-token" tool = MCPStreamableHTTPTool(name="test", url="http://example.com") + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] + sdk_client = _mock_sdk_client() + failure = ConnectionError(f"Server not ready: {private_error_detail}") + sdk_client.__aenter__.side_effect = failure - # Mock successful transport creation - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] - - # Mock successful session creation but failed initialization - mock_session = Mock() - mock_session.initialize = AsyncMock(side_effect=ConnectionError(f"Server not ready: {private_error_detail}")) - - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) - + with patch("mcp.Client", return_value=sdk_client): with ( caplog.at_level(logging.DEBUG, logger="agent_framework"), pytest.raises(ToolException) as exc_info, ): await tool.connect() - # Should use generic error message since HTTP tool doesn't have command - assert "MCP server failed to initialize" in str(exc_info.value) + assert "Failed to create MCP session" in str(exc_info.value) assert private_error_detail in str(exc_info.value) assert (private_error_detail in caplog.text) is enable_sensitive_data + assert exc_info.value.__cause__ is failure + assert tool.session is None + assert tool.is_connected is False + await tool.close() async def test_connect_cleanup_on_transport_failure(): @@ -4866,6 +5898,7 @@ async def test_connect_cleanup_on_transport_failure(): # Verify cleanup was called tool._exit_stack.aclose.assert_called_once() + await tool.close() async def test_connect_cleanup_on_transport_failure_http_uses_generic_message(): @@ -4874,39 +5907,30 @@ async def test_connect_cleanup_on_transport_failure_http_uses_generic_message(): tool._exit_stack.aclose = AsyncMock() # type: ignore[method-assign] tool.get_mcp_client = Mock(side_effect=RuntimeError("Transport failed")) # type: ignore[method-assign] - with pytest.raises(ToolException, match="Failed to connect to MCP server: Transport failed"): + with pytest.raises(ToolException, match="Failed to create MCP session: Transport failed"): await tool.connect() tool._exit_stack.aclose.assert_called_once() + await tool.close() async def test_connect_cleanup_on_initialization_failure(): - """Test that _exit_stack.aclose() is called when initialization fails.""" + """Test that framework cleanup runs when SDK negotiation fails during entry.""" tool = MCPStdioTool(name="test", command="test-command") # Mock _exit_stack.aclose to verify it's called tool._exit_stack.aclose = AsyncMock() # type: ignore[method-assign] - # Mock successful transport creation - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] - - # Mock successful session creation but failed initialization - mock_session = Mock() - mock_session.initialize = AsyncMock(side_effect=RuntimeError("Init failed")) - - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = RuntimeError("Init failed") + with patch("mcp.Client", return_value=sdk_client): with pytest.raises(ToolException): await tool.connect() # Verify cleanup was called tool._exit_stack.aclose.assert_called_once() + await tool.close() async def test_connect_cancelled_error_during_transport_creation_raises_tool_exception(): @@ -4915,10 +5939,11 @@ async def test_connect_cancelled_error_during_transport_creation_raises_tool_exc tool._exit_stack.aclose = AsyncMock() # type: ignore[method-assign] tool.get_mcp_client = Mock(side_effect=asyncio.CancelledError("cancel scope")) # type: ignore[method-assign] - with pytest.raises(ToolException, match="Failed to connect to MCP server"): + with pytest.raises(ToolException, match="Failed to create MCP session"): await tool.connect() tool._exit_stack.aclose.assert_called_once() + await tool.close() async def test_connect_cancelled_error_during_transport_creation_stdio_raises_tool_exception(): @@ -4927,32 +5952,30 @@ async def test_connect_cancelled_error_during_transport_creation_stdio_raises_to tool._exit_stack.aclose = AsyncMock() # type: ignore[method-assign] tool.get_mcp_client = Mock(side_effect=asyncio.CancelledError("cancel scope")) # type: ignore[method-assign] - with pytest.raises(ToolException, match="Failed to start MCP server 'my-server'"): + with pytest.raises(ToolException, match="Failed to create MCP session for server 'my-server'"): await tool.connect() tool._exit_stack.aclose.assert_called_once() + await tool.close() async def test_connect_cancelled_error_during_session_creation_raises_tool_exception(): - """Test that CancelledError from session creation is wrapped in ToolException.""" + """Test that an SDK client-entry CancelledError is wrapped in ToolException.""" tool = MCPStreamableHTTPTool(name="test", url="http://example.com") + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = asyncio.CancelledError("cancel scope") - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] - - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock(side_effect=asyncio.CancelledError("cancel scope")) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) - - with pytest.raises(ToolException, match="Failed to create MCP session"): - await tool.connect() + with ( + patch("mcp.Client", return_value=sdk_client), + pytest.raises(ToolException, match="Failed to create MCP session"), + ): + await tool.connect() + await tool.close() async def test_connect_cancelled_error_during_initialize_raises_tool_exception(): - """Test that CancelledError from session.initialize() is wrapped in ToolException. + """Test that CancelledError from SDK negotiation is wrapped in ToolException. This is the primary regression test for the bug: when an MCP server is unreachable, the MCP library raises asyncio.CancelledError internally, which previously escaped @@ -4960,42 +5983,31 @@ async def test_connect_cancelled_error_during_initialize_raises_tool_exception() """ tool = MCPStreamableHTTPTool(name="test", url="http://example.com") - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = asyncio.CancelledError("Cancelled via cancel scope") - mock_session = Mock() - mock_session.initialize = AsyncMock(side_effect=asyncio.CancelledError("Cancelled via cancel scope")) - - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) - - with pytest.raises(ToolException, match="MCP server failed to initialize"): - await tool.connect() + with ( + patch("mcp.Client", return_value=sdk_client), + pytest.raises(ToolException, match="Failed to create MCP session"), + ): + await tool.connect() + await tool.close() async def test_connect_cancelled_error_during_initialize_stdio_raises_tool_exception(): - """Test that CancelledError from session.initialize() uses the command-specific message for MCPStdioTool.""" + """SDK negotiation failures retain the full stdio command in the diagnostic.""" tool = MCPStdioTool(name="test", command="my-server", args=["--port", "8080"]) - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] - - mock_session = Mock() - mock_session.initialize = AsyncMock(side_effect=asyncio.CancelledError("Cancelled via cancel scope")) - - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = asyncio.CancelledError("Cancelled via cancel scope") - with pytest.raises(ToolException, match="MCP server 'my-server --port 8080' failed to initialize"): - await tool.connect() + with ( + patch("mcp.Client", return_value=sdk_client), + pytest.raises(ToolException, match="Failed to create MCP session for server 'my-server --port 8080'"), + ): + await tool.connect() + await tool.close() @pytest.mark.skipif(sys.version_info < (3, 11), reason="task.cancelling() requires Python >= 3.11") @@ -5013,65 +6025,55 @@ async def test_connect_genuine_cancellation_during_transport_creation_propagates await tool.connect() tool._exit_stack.aclose.assert_called_once() + await tool.close() @pytest.mark.skipif(sys.version_info < (3, 11), reason="task.cancelling() requires Python >= 3.11") async def test_connect_genuine_cancellation_during_initialize_propagates(): - """Test that genuine task cancellation during initialize() propagates as CancelledError.""" + """Test that genuine task cancellation during SDK negotiation propagates.""" tool = MCPStreamableHTTPTool(name="test", url="http://example.com") tool._exit_stack.aclose = AsyncMock() # type: ignore[method-assign] - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] - - mock_session = Mock() - mock_session.initialize = AsyncMock(side_effect=asyncio.CancelledError("task cancelled")) + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = asyncio.CancelledError("task cancelled") mock_cancelled_task = Mock() mock_cancelled_task.cancelling.return_value = 1 with ( patch("asyncio.current_task", return_value=mock_cancelled_task), - patch("mcp.client.session.ClientSession") as mock_session_class, + patch("mcp.Client", return_value=sdk_client), + pytest.raises(asyncio.CancelledError), ): - mock_session_class.return_value.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) - - with pytest.raises(asyncio.CancelledError): - await tool.connect() + await tool.connect() tool._exit_stack.aclose.assert_called_once() + await tool.close() @pytest.mark.skipif(sys.version_info < (3, 11), reason="task.cancelling() requires Python >= 3.11") async def test_connect_genuine_cancellation_during_session_creation_propagates(): - """Test that genuine task cancellation during session creation propagates as CancelledError.""" + """Test that genuine task cancellation during SDK client entry propagates.""" tool = MCPStreamableHTTPTool(name="test", url="http://example.com") tool._exit_stack.aclose = AsyncMock() # type: ignore[method-assign] - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = asyncio.CancelledError("task cancelled") mock_cancelled_task = Mock() mock_cancelled_task.cancelling.return_value = 1 with ( patch("asyncio.current_task", return_value=mock_cancelled_task), - patch("mcp.client.session.ClientSession") as mock_session_class, + patch("mcp.Client", return_value=sdk_client), + pytest.raises(asyncio.CancelledError), ): - mock_session_class.return_value.__aenter__ = AsyncMock(side_effect=asyncio.CancelledError("task cancelled")) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) - - with pytest.raises(asyncio.CancelledError): - await tool.connect() + await tool.connect() tool._exit_stack.aclose.assert_called_once() + await tool.close() async def test_aenter_cancelled_error_during_connect_is_catchable_as_exception(): @@ -5082,19 +6084,11 @@ async def test_aenter_cancelled_error_during_connect_is_catchable_as_exception() """ tool = MCPStreamableHTTPTool(name="test", url="http://example.com") - mock_session = Mock() - mock_session.initialize = AsyncMock(side_effect=asyncio.CancelledError("Cancelled via cancel scope")) - - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] - - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = asyncio.CancelledError("Cancelled via cancel scope") + with patch("mcp.Client", return_value=sdk_client): caught = None try: async with tool: @@ -5104,6 +6098,7 @@ async def test_aenter_cancelled_error_during_connect_is_catchable_as_exception() assert caught is not None, "Expected an exception to be caught by except Exception" assert isinstance(caught, ToolException) + await tool.close() # Tests for _should_propagate_cancelled_error helper @@ -5135,26 +6130,19 @@ def test_should_propagate_cancelled_error_returns_false_when_task_not_cancelling async def test_connect_cancelled_error_during_session_creation_includes_exception_in_message(): - """Test that CancelledError from session creation includes exception details in ToolException message.""" + """Test that an SDK client-entry CancelledError retains its exception details.""" tool = MCPStreamableHTTPTool(name="test", url="http://example.com") + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = asyncio.CancelledError("cancel scope detail") - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] - - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock( - side_effect=asyncio.CancelledError("cancel scope detail") - ) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) - + with patch("mcp.Client", return_value=sdk_client): with pytest.raises(ToolException) as exc_info: await tool.connect() assert "Failed to create MCP session" in str(exc_info.value) assert "cancel scope detail" in str(exc_info.value) + await tool.close() # Tests for _describe_error helper (cancel-scope / exception-group unmasking) @@ -5192,20 +6180,15 @@ async def test_connect_cancelled_error_unmasks_inner_auth_failure(): """A 401 swallowed by the MCP client's cancel scope must be named in the ToolException.""" tool = MCPStreamableHTTPTool(name="test", url="http://example.com") - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] real = RuntimeError("401 Client Error: Unauthorized") masked = asyncio.CancelledError("Cancelled via cancel scope") masked.__context__ = real - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock(side_effect=masked) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) - + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = masked + with patch("mcp.Client", return_value=sdk_client): with pytest.raises(ToolException) as exc_info: await tool.connect() @@ -5213,13 +6196,12 @@ async def test_connect_cancelled_error_unmasks_inner_auth_failure(): assert "Failed to create MCP session" in message assert "401 Client Error: Unauthorized" in message assert "Cancelled via cancel scope" not in message + await tool.close() @pytest.mark.skipif(sys.version_info < (3, 11), reason="ExceptionGroup is Python >= 3.11") async def test_connect_bare_cancel_names_cleanup_error_from_exit_stack(): - """The reported 401 path: initialize() raises a bare CancelledError and the - real HTTP failure only surfaces from the exit-stack close. The ToolException - must name that close-time error, not the cancellation.""" + """SDK entry raises a bare cancellation and cleanup reveals the actual HTTP failure.""" import builtins exception_group_type = getattr(builtins, "ExceptionGroup", None) @@ -5228,30 +6210,27 @@ async def test_connect_bare_cancel_names_cleanup_error_from_exit_stack(): tool = MCPStreamableHTTPTool(name="test", url="http://example.com") - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] cleanup_group = exception_group_type( "unhandled errors in a TaskGroup", [RuntimeError("401 Client Error: Unauthorized")] ) - mock_session = Mock() - mock_session.initialize = AsyncMock(side_effect=asyncio.CancelledError("Cancelled via cancel scope")) - - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_class.return_value.__aexit__ = AsyncMock(side_effect=cleanup_group) + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = asyncio.CancelledError("Cancelled via cancel scope") + tool._exit_stack.aclose = AsyncMock(side_effect=cleanup_group) # type: ignore[method-assign] + with patch("mcp.Client", return_value=sdk_client): with pytest.raises(ToolException) as exc_info: await tool.connect() message = str(exc_info.value) - assert "MCP server failed to initialize" in message + assert "Failed to create MCP session" in message assert "401 Client Error: Unauthorized" in message assert "Cancelled via cancel scope" not in message + tool._exit_stack.aclose.assert_awaited_once() + tool._exit_stack.aclose.side_effect = None + await tool.close() @pytest.mark.parametrize("enable_sensitive_data", [True, False], indirect=True) @@ -5260,28 +6239,20 @@ async def test_connect_cancelled_error_during_session_creation_log_respects_sens enable_sensitive_data: bool, caplog: pytest.LogCaptureFixture, ) -> None: - """Test that CancelledError session logs export details only after opt-in.""" + """Test that SDK client-entry cancellation logs details only after opt-in.""" private_error_detail = "founder-secret-token" tool = MCPStreamableHTTPTool(name="test", url="http://example.com") + tool.get_mcp_client = Mock(return_value=Mock()) # type: ignore[method-assign] + sdk_client = _mock_sdk_client() + sdk_client.__aenter__.side_effect = asyncio.CancelledError(f"cancel scope: {private_error_detail}") - mock_transport = (Mock(), Mock()) - mock_context_manager = Mock() - mock_context_manager.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context_manager.__aexit__ = AsyncMock(return_value=None) - tool.get_mcp_client = Mock(return_value=mock_context_manager) # type: ignore[method-assign] - - with patch("mcp.client.session.ClientSession") as mock_session_class: - mock_session_class.return_value.__aenter__ = AsyncMock( - side_effect=asyncio.CancelledError(f"cancel scope: {private_error_detail}") - ) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) - - with caplog.at_level(logging.DEBUG), pytest.raises(ToolException): - await tool.connect() + with patch("mcp.Client", return_value=sdk_client), caplog.at_level(logging.DEBUG), pytest.raises(ToolException): + await tool.connect() assert (private_error_detail in caplog.text) is enable_sensitive_data if not enable_sensitive_data: assert "MCP session creation failed (CancelledError)." in caplog.text + await tool.close() def test_mcp_stdio_tool_get_mcp_client_with_env_and_kwargs(): @@ -5338,28 +6309,6 @@ async def test_mcp_streamable_http_tool_get_mcp_client_all_params(): assert http_client.is_closed -def test_mcp_websocket_tool_get_mcp_client_with_kwargs(): - """Test MCPWebsocketTool.get_mcp_client() with client kwargs.""" - tool = MCPWebsocketTool( - name="test", - url="wss://example.com", - max_size=1024, - ping_interval=30, - compression="deflate", - ) - - with patch("mcp.client.websocket.websocket_client") as mock_ws_client: - tool.get_mcp_client() - - # Verify all kwargs were passed - mock_ws_client.assert_called_once_with( - url="wss://example.com", - max_size=1024, - ping_interval=30, - compression="deflate", - ) - - async def test_mcp_tool_deduplication(): """Test that MCP tools are not duplicated in MCPTool""" from agent_framework._mcp import MCPTool @@ -5436,7 +6385,7 @@ async def test_load_tools_prevents_multiple_calls(): mock_session = AsyncMock() mock_tool_list = MagicMock() mock_tool_list.tools = [] - mock_tool_list.nextCursor = None # No pagination + mock_tool_list.next_cursor = None # No pagination mock_session.list_tools = AsyncMock(return_value=mock_tool_list) mock_session.initialize = AsyncMock() @@ -5475,7 +6424,7 @@ async def test_load_prompts_prevents_multiple_calls(): mock_session = AsyncMock() mock_prompt_list = MagicMock() mock_prompt_list.prompts = [] - mock_prompt_list.nextCursor = None # No pagination + mock_prompt_list.next_cursor = None # No pagination mock_session.list_prompts = AsyncMock(return_value=mock_prompt_list) tool.session = mock_session @@ -5506,8 +6455,8 @@ async def test_mcp_streamable_http_tool_httpx_client_cleanup(): # Mock the streamable_http_client to avoid actual connections with ( - patch("mcp.client.streamable_http.streamable_http_client") as mock_client, - patch("mcp.client.session.ClientSession") as mock_session_class, + patch("agent_framework._mcp.streamable_http_client") as mock_client, + patch("mcp.Client", side_effect=lambda **_: _mock_sdk_client()), ): # Setup mock context manager for streamable_http_client mock_transport = (Mock(), Mock()) @@ -5516,12 +6465,6 @@ async def test_mcp_streamable_http_tool_httpx_client_cleanup(): mock_context_manager.__aexit__ = AsyncMock(return_value=None) mock_client.return_value = mock_context_manager - # Setup mock session - mock_session = Mock() - mock_session.initialize = AsyncMock() - mock_session_class.return_value.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_class.return_value.__aexit__ = AsyncMock(return_value=None) - tool1 = MCPStreamableHTTPTool( name="test", url="http://localhost:8081/mcp", @@ -5570,35 +6513,35 @@ async def test_load_tools_with_pagination(): types.Tool( name="tool_1", description="First tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, ), types.Tool( name="tool_2", description="Second tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, ), ] - page1.nextCursor = "cursor_page2" + page1.next_cursor = "cursor_page2" page2 = MagicMock() page2.tools = [ types.Tool( name="tool_3", description="Third tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, ), ] - page2.nextCursor = "cursor_page3" + page2.next_cursor = "cursor_page3" page3 = MagicMock() page3.tools = [ types.Tool( name="tool_4", description="Fourth tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, ), ] - page3.nextCursor = None # No more pages + page3.next_cursor = None # No more pages # Mock list_tools to return different pages based on params async def mock_list_tools(params=None): @@ -5625,7 +6568,7 @@ async def test_load_tools_adds_properties_to_zero_arg_tool_schema(): """Test that load_tools normalizes inputSchema for zero-argument MCP tools. Some MCP servers (e.g. matlab-mcp-core-server) declare zero-argument tools - with inputSchema={"type": "object"} and no "properties" key. OpenAI's API + with input_schema={"type": "object"} and no "properties" key. OpenAI's API requires "properties" to be present on object schemas, so load_tools must inject an empty "properties" dict when it is missing. """ @@ -5648,22 +6591,22 @@ async def test_load_tools_adds_properties_to_zero_arg_tool_schema(): types.Tool( name="zero_arg_tool", description="A tool with no parameters", - inputSchema=original_zero_arg_schema, + input_schema=original_zero_arg_schema, ), types.Tool( name="normal_tool", description="A tool with parameters", - inputSchema={"type": "object", "properties": {"x": {"type": "string"}}, "required": ["x"]}, + input_schema={"type": "object", "properties": {"x": {"type": "string"}}, "required": ["x"]}, ), types.Tool( name="string_schema_tool", description="A tool with a non-object schema", - inputSchema=original_string_schema, + input_schema=original_string_schema, ), types.Tool( name="empty_schema_tool", description="A tool with an empty schema", - inputSchema=original_empty_schema, + input_schema=original_empty_schema, ), ] @@ -5672,10 +6615,10 @@ async def test_load_tools_adds_properties_to_zero_arg_tool_schema(): none_schema_tool = MagicMock() none_schema_tool.name = "none_schema_tool" none_schema_tool.description = "A tool with None inputSchema" - none_schema_tool.inputSchema = None + none_schema_tool.input_schema = None none_schema_tool.meta = None page.tools.append(none_schema_tool) - page.nextCursor = None + page.next_cursor = None mock_session.list_tools = AsyncMock(return_value=page) @@ -5743,7 +6686,7 @@ async def test_load_prompts_with_pagination(): arguments=[types.PromptArgument(name="arg2", description="Arg 2", required=True)], ), ] - page1.nextCursor = "cursor_page2" + page1.next_cursor = "cursor_page2" page2 = MagicMock() page2.prompts = [ @@ -5753,7 +6696,7 @@ async def test_load_prompts_with_pagination(): arguments=[types.PromptArgument(name="arg3", description="Arg 3", required=False)], ), ] - page2.nextCursor = None # No more pages + page2.next_cursor = None # No more pages # Mock list_prompts to return different pages based on params async def mock_list_prompts(params=None): @@ -5793,30 +6736,30 @@ async def test_load_tools_pagination_with_duplicates(): types.Tool( name="tool_1", description="First tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, ), types.Tool( name="tool_2", description="Second tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, ), ] - page1.nextCursor = "cursor_page2" + page1.next_cursor = "cursor_page2" page2 = MagicMock() page2.tools = [ types.Tool( name="tool_1", # Duplicate from page1 description="Duplicate tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, ), types.Tool( name="tool_3", description="Third tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, ), ] - page2.nextCursor = None + page2.next_cursor = None # Mock list_tools to return different pages async def mock_list_tools(params=None): @@ -5859,7 +6802,7 @@ async def test_load_prompts_pagination_with_duplicates(): arguments=[types.PromptArgument(name="arg1", description="Arg 1", required=True)], ), ] - page1.nextCursor = "cursor_page2" + page1.next_cursor = "cursor_page2" page2 = MagicMock() page2.prompts = [ @@ -5874,7 +6817,7 @@ async def test_load_prompts_pagination_with_duplicates(): arguments=[types.PromptArgument(name="arg3", description="Arg 3", required=True)], ), ] - page2.nextCursor = None + page2.next_cursor = None # Mock list_prompts to return different pages async def mock_list_prompts(params=None): @@ -5907,11 +6850,11 @@ async def test_load_tools_concurrent_reload_does_not_duplicate_tools_and_preserv types.Tool( name="tool_1", description="First tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, _meta={"echo": "tool_1"}, ), ] - page.nextCursor = None + page.next_cursor = None async def mock_list_tools(params: Any = None) -> Any: assert params is None @@ -5942,7 +6885,7 @@ async def test_load_prompts_concurrent_reload_does_not_duplicate_prompts(): arguments=[types.PromptArgument(name="arg1", description="Arg 1", required=True)], ), ] - page.nextCursor = None + page.next_cursor = None async def mock_list_prompts(params: Any = None) -> Any: assert params is None @@ -6023,7 +6966,7 @@ async def test_load_tools_empty_pagination(): # Create empty response page1 = MagicMock() page1.tools = [] - page1.nextCursor = None + page1.next_cursor = None mock_session.list_tools = AsyncMock(return_value=page1) @@ -6051,7 +6994,7 @@ async def test_load_prompts_empty_pagination(): # Create empty response page1 = MagicMock() page1.prompts = [] - page1.nextCursor = None + page1.next_cursor = None mock_session.list_prompts = AsyncMock(return_value=page1) @@ -6086,7 +7029,6 @@ async def test_mcp_tool_connection_properly_invalidated_after_closed_resource_er # Mock the session mock_session = MagicMock() - mock_session._request_id = 1 mock_session.call_tool = AsyncMock() # Mock _exit_stack.aclose to track cleanup calls @@ -6185,7 +7127,6 @@ async def test_mcp_tool_get_prompt_reconnection_on_closed_resource_error(): # Mock the session mock_session = MagicMock() - mock_session._request_id = 1 mock_session.get_prompt = AsyncMock() # Mock _exit_stack.aclose to track cleanup calls @@ -6271,14 +7212,15 @@ async def test_mcp_tool_call_tool_requires_loaded_tools() -> None: async def test_generated_mcp_function_ignores_model_supplied_remote_tool_name() -> None: """A model-supplied argument must not be able to redirect the call to another remote tool.""" tool = MCPTool(name="test_tool") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock(spec=ClientSession) - tool.session.list_tools = AsyncMock( # ty: ignore[unresolved-attribute] + mock_session = Mock(spec=ClientSession) + tool.session = mock_session + mock_session.list_tools = AsyncMock( # ty: ignore[unresolved-attribute] return_value=types.ListToolsResult( tools=[ types.Tool( name="search_docs", description="Search docs.", - inputSchema={ + input_schema={ "type": "object", "properties": {"query": {"type": "string"}}, "required": ["query"], @@ -6287,7 +7229,7 @@ async def test_generated_mcp_function_ignores_model_supplied_remote_tool_name() types.Tool( name="delete_repo", description="Delete a repository.", - inputSchema={ + input_schema={ "type": "object", "properties": {"repo": {"type": "string"}}, "required": ["repo"], @@ -6296,7 +7238,7 @@ async def test_generated_mcp_function_ignores_model_supplied_remote_tool_name() ] ) ) - tool.session.call_tool = AsyncMock( # ty: ignore[unresolved-attribute] + mock_session.call_tool = AsyncMock( # ty: ignore[unresolved-attribute] return_value=types.CallToolResult(content=[types.TextContent(type="text", text="ok")]) ) @@ -6307,8 +7249,8 @@ async def test_generated_mcp_function_ignores_model_supplied_remote_tool_name() arguments={"query": "quarterly report", "_remote_tool_name": "delete_repo", "repo": "corp/prod"} ) - tool.session.call_tool.assert_awaited_once() # ty: ignore[unresolved-attribute] - await_args = tool.session.call_tool.await_args # ty: ignore[unresolved-attribute] + mock_session.call_tool.assert_awaited_once() # ty: ignore[unresolved-attribute] + await_args = mock_session.call_tool.await_args # ty: ignore[unresolved-attribute] assert await_args is not None assert await_args.args[0] == "search_docs" assert await_args.kwargs["arguments"] == {"query": "quarterly report"} @@ -6357,9 +7299,10 @@ async def test_mcp_tool_get_prompt_raises_after_reconnection_still_fails() -> No async def test_mcp_tool_wraps_unexpected_call_tool_and_get_prompt_errors() -> None: tool = MCPTool(name="test_tool", load_tools=True, load_prompts=True) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock() - tool.session.call_tool = AsyncMock(side_effect=RuntimeError("tool boom")) - tool.session.get_prompt = AsyncMock(side_effect=RuntimeError("prompt boom")) + mock_session = Mock() + tool.session = mock_session + mock_session.call_tool = AsyncMock(side_effect=RuntimeError("tool boom")) + mock_session.get_prompt = AsyncMock(side_effect=RuntimeError("prompt boom")) with pytest.raises(ToolExecutionException, match="Failed to call tool 'remote_tool'"): await tool.call_tool("remote_tool") @@ -6410,17 +7353,11 @@ async def __aexit__(self, exc_type, exc, tb): ) transport_context = TaskBoundTransportContext() - mock_session = Mock() - mock_session._request_id = 1 - mock_session.initialize = AsyncMock() - - mock_session_context = AsyncMock() - mock_session_context.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_context.__aexit__ = AsyncMock(return_value=None) + sdk_client = _mock_sdk_client() with ( patch.object(tool, "get_mcp_client", return_value=transport_context), - patch("mcp.client.session.ClientSession", return_value=mock_session_context), + patch("mcp.Client", return_value=_TransportBoundClientContext(transport_context, sdk_client)), ): await asyncio.create_task(tool.connect()) @@ -6430,6 +7367,7 @@ async def __aexit__(self, exc_type, exc, tb): assert transport_context.closed_cleanly is True assert transport_context.exit_task is transport_context.enter_task + sdk_client.__aexit__.assert_awaited_once() assert not any("cancel scope" in record.getMessage().lower() for record in caplog.records) @@ -6463,37 +7401,39 @@ async def __aexit__(self, exc_type, exc, tb): transport_contexts = [TaskBoundTransportContext(), TaskBoundTransportContext()] sessions = [] - session_contexts = [] - for _ in range(2): - session = Mock() - session._request_id = 1 - session.initialize = AsyncMock() - session.set_logging_level = AsyncMock() + clients = [] + client_contexts = [] + for transport_context in transport_contexts: + session = Mock(spec=ClientSession) sessions.append(session) - - session_context = AsyncMock() - session_context.__aenter__ = AsyncMock(return_value=session) - session_context.__aexit__ = AsyncMock(return_value=None) - session_contexts.append(session_context) + client = _mock_sdk_client(session=session) + clients.append(client) + client_contexts.append(_TransportBoundClientContext(transport_context, client)) with ( patch.object(tool, "get_mcp_client", side_effect=transport_contexts), - patch("mcp.client.session.ClientSession", side_effect=session_contexts), + patch("mcp.Client", side_effect=client_contexts), ): - await tool.connect() + try: + await tool.connect() - caplog.clear() - with caplog.at_level(logging.WARNING, logger=logger.name): - await asyncio.create_task(tool.connect(reset=True)) - - assert transport_contexts[0].closed_cleanly is True - assert transport_contexts[0].exit_task is transport_contexts[0].enter_task - assert transport_contexts[1].enter_task is transport_contexts[0].enter_task - assert tool.session is sessions[1] - assert tool.is_connected is True - assert not any("cancel scope" in record.getMessage().lower() for record in caplog.records) + caplog.clear() + with caplog.at_level(logging.WARNING, logger=logger.name): + await asyncio.create_task(tool.connect(reset=True)) + + assert transport_contexts[0].closed_cleanly is True + assert transport_contexts[0].exit_task is transport_contexts[0].enter_task + assert transport_contexts[1].enter_task is transport_contexts[0].enter_task + assert _connected_client(tool) is clients[1] + assert tool.is_connected is True + clients[0].__aexit__.assert_awaited_once() + clients[1].__aenter__.assert_awaited_once() + assert not any("cancel scope" in record.getMessage().lower() for record in caplog.records) + finally: + await tool.close() - await tool.close() + assert transport_contexts[1].closed_cleanly is True + assert transport_contexts[1].exit_task is transport_contexts[1].enter_task async def test_mcp_tool_connect_from_lifecycle_owner_bypasses_request_lock() -> None: @@ -6660,7 +7600,7 @@ async def test_mcp_tool_safe_close_handles_cleanup_exception_group(): async def test_connect_sets_logging_level_when_logger_level_is_set(): - """Test that connect() sets the MCP server logging level when the logger level is not NOTSET.""" + """Test that connect() configures modern metadata and the legacy server logging level.""" tool = MCPStdioTool( name="test_server", @@ -6670,30 +7610,20 @@ async def test_connect_sets_logging_level_when_logger_level_is_set(): load_prompts=False, ) - # Mock the transport and session - mock_transport = (Mock(), Mock()) - mock_context = AsyncMock() - mock_context.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context.__aexit__ = AsyncMock() - - mock_session = Mock() - mock_session._request_id = 1 - mock_session.initialize = AsyncMock() + mock_session = Mock(spec=ClientSession) mock_session.set_logging_level = AsyncMock() - - mock_session_context = AsyncMock() - mock_session_context.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_context.__aexit__ = AsyncMock() + sdk_client = _mock_sdk_client( + session=mock_session, capabilities=types.ServerCapabilities(logging=types.LoggingCapability()) + ) with ( - patch.object(tool, "get_mcp_client", return_value=mock_context), - patch("mcp.client.session.ClientSession", return_value=mock_session_context), + patch("mcp.Client", return_value=sdk_client) as mock_client_class, patch.object(logger, "level", logging.DEBUG), # Set logger level to DEBUG ): - await tool.connect() - - # Verify set_logging_level was called with "debug" - mock_session.set_logging_level.assert_called_once_with("debug") + async with tool: + assert mock_client_class.call_args.kwargs["log_level"] == "debug" + sdk_client.set_logging_level.assert_awaited_once_with("debug") + mock_session.set_logging_level.assert_not_awaited() async def test_connect_does_not_set_logging_level_when_logger_level_is_notset(): @@ -6707,1870 +7637,1478 @@ async def test_connect_does_not_set_logging_level_when_logger_level_is_notset(): load_prompts=False, ) - # Mock the transport and session - mock_transport = (Mock(), Mock()) - mock_context = AsyncMock() - mock_context.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context.__aexit__ = AsyncMock() - - mock_session = Mock() - mock_session._request_id = 1 - mock_session.initialize = AsyncMock() + mock_session = Mock(spec=ClientSession) mock_session.set_logging_level = AsyncMock() - - mock_session_context = AsyncMock() - mock_session_context.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_context.__aexit__ = AsyncMock() + sdk_client = _mock_sdk_client( + session=mock_session, capabilities=types.ServerCapabilities(logging=types.LoggingCapability()) + ) with ( - patch.object(tool, "get_mcp_client", return_value=mock_context), - patch("mcp.client.session.ClientSession", return_value=mock_session_context), + patch("mcp.Client", return_value=sdk_client) as mock_client_class, patch.object(logger, "level", logging.NOTSET), # Set logger level to NOTSET ): - await tool.connect() - - # Verify set_logging_level was NOT called - mock_session.set_logging_level.assert_not_called() + async with tool: + assert mock_client_class.call_args.kwargs["log_level"] is None + sdk_client.set_logging_level.assert_not_awaited() + mock_session.set_logging_level.assert_not_called() @pytest.mark.parametrize("enable_sensitive_data", [True, False], indirect=True) -async def test_connect_handles_set_logging_level_exception( +async def test_connect_handles_session_set_logging_level_exception( span_exporter: Any, enable_sensitive_data: bool, caplog: pytest.LogCaptureFixture, ) -> None: - """Test that connect() handles exceptions from set_logging_level gracefully.""" + """Test that caller-supplied session logging errors follow the sensitive-data policy.""" private_error_detail = "founder-secret-token" + session = _mock_unnegotiated_session(types.ServerCapabilities(logging=types.LoggingCapability())) + session.set_logging_level = AsyncMock( + side_effect=MCPError(types.INTERNAL_ERROR, f"Failed to configure logging: {private_error_detail}") + ) tool = MCPStdioTool( name="test_server", command="test_command", - args=["arg1"], load_tools=False, load_prompts=False, + session=session, ) + tool.is_connected = True - # Mock the transport and session - mock_transport = (Mock(), Mock()) - mock_context = AsyncMock() - mock_context.__aenter__ = AsyncMock(return_value=mock_transport) - mock_context.__aexit__ = AsyncMock() - - mock_session = Mock() - mock_session._request_id = 1 - mock_session.initialize = AsyncMock() - # Make set_logging_level raise an exception - mock_session.set_logging_level = AsyncMock( - side_effect=RuntimeError(f"Server doesn't support logging level: {private_error_detail}") - ) - - mock_session_context = AsyncMock() - mock_session_context.__aenter__ = AsyncMock(return_value=mock_session) - mock_session_context.__aexit__ = AsyncMock() - - with ( - patch.object(tool, "get_mcp_client", return_value=mock_context), - patch("mcp.client.session.ClientSession", return_value=mock_session_context), - patch.object(logger, "level", logging.INFO), # Set logger level to INFO - ): - # Should NOT raise - the exception should be caught and logged - await tool.connect() - - # Verify set_logging_level was called - mock_session.set_logging_level.assert_called_once_with("info") + with patch.object(logger, "level", logging.INFO), caplog.at_level(logging.WARNING, logger="agent_framework"): + await tool._connect_on_owner() + session.set_logging_level.assert_awaited_once_with("info") assert (private_error_detail in caplog.text) is enable_sensitive_data if enable_sensitive_data: assert "Failed to set log level" in caplog.text else: - assert "Failed to set MCP server log level (RuntimeError)." in caplog.text + assert "Failed to set MCP server log level (MCPError)." in caplog.text -async def test_connect_reinitializes_existing_session_and_loads_tools_and_prompts() -> None: - tool = MCPTool(name="test_tool", load_tools=True, load_prompts=True) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.is_connected = True - tool.session = Mock() - tool.session._request_id = 0 - tool.session.initialize = AsyncMock() +async def test_connect_does_not_use_legacy_logging_method_for_modern_server() -> None: + tool = MCPStdioTool( + name="test_server", + command="test_command", + load_tools=False, + load_prompts=False, + ) + mock_session = Mock(spec=ClientSession) + mock_session.set_logging_level = AsyncMock() + sdk_client = _mock_sdk_client( + session=mock_session, + capabilities=types.ServerCapabilities(logging=types.LoggingCapability()), + protocol_version="2026-07-28", + ) with ( - patch.object(tool, "load_tools", AsyncMock()) as mock_load_tools, - patch.object(tool, "load_prompts", AsyncMock()) as mock_load_prompts, - patch.object(logger, "level", logging.NOTSET), + patch("mcp.Client", return_value=sdk_client) as mock_client_class, + patch.object(logger, "level", logging.WARNING), ): - await tool._connect_on_owner() + async with tool: + assert mock_client_class.call_args.kwargs["log_level"] == "warning" + mock_session.set_logging_level.assert_not_awaited() - tool.session.initialize.assert_awaited_once() - mock_load_tools.assert_awaited_once() - mock_load_prompts.assert_awaited_once() - assert tool._tools_loaded is True - assert tool._prompts_loaded is True +def _mcp_tool_for_in_process_server( + server: Any, + *, + load_tools: bool, + load_prompts: bool, + client: SupportsChatGetResponse | None = None, + sampling_approval_callback: Callable[[types.CreateMessageRequestParams], bool] | None = None, +) -> MCPTool: + class _InProcessMCPTool(MCPTool): + def get_mcp_client(self) -> Any: + return server -async def test_connect_skips_tools_and_prompts_when_server_does_not_advertise_capabilities() -> None: - tool = MCPTool(name="test_tool", load_tools=True, load_prompts=True) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.is_connected = True - tool.session = Mock() - tool.session._request_id = 0 - tool.session.initialize = AsyncMock( - return_value=types.InitializeResult( - protocolVersion=types.LATEST_PROTOCOL_VERSION, - capabilities=types.ServerCapabilities(), - serverInfo=types.Implementation(name="test", version="1.0"), - ) + return _InProcessMCPTool( + name="mrtr-test", + load_tools=load_tools, + load_prompts=load_prompts, + client=client, + sampling_approval_callback=sampling_approval_callback, ) - tool.session.list_tools = AsyncMock() - tool.session.list_prompts = AsyncMock() - tool.session.set_logging_level = AsyncMock() - with patch.object(logger, "level", logging.INFO): - await tool._connect_on_owner() - tool.session.initialize.assert_awaited_once() - tool.session.list_tools.assert_not_called() - tool.session.list_prompts.assert_not_called() - tool.session.set_logging_level.assert_not_called() - assert tool.is_connected is True - assert tool._supports_tools is False - assert tool._supports_prompts is False - assert tool._supports_logging is False - assert tool._tools_loaded is True - assert tool._prompts_loaded is True +async def test_tool_call_drives_state_only_mrtr_through_high_level_client() -> None: + from mcp.server import Server, ServerRequestContext + calls: list[tuple[int | str | None, str, dict[str, Any] | None, str | None]] = [] -async def test_connect_treats_missing_capabilities_as_unsupported() -> None: - tool = MCPTool(name="test_tool", load_tools=True, load_prompts=True) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.is_connected = True - tool.session = Mock() - tool.session._request_id = 0 - tool.session.initialize = AsyncMock(return_value=Mock(capabilities=None)) - tool.session.list_tools = AsyncMock() - tool.session.list_prompts = AsyncMock() + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + return types.ListToolsResult( + tools=[ + types.Tool( + name="greet", + input_schema={ + "type": "object", + "properties": {"name": {"type": "string"}}, + "required": ["name"], + }, + ) + ] + ) - with patch.object(logger, "level", logging.NOTSET): - await tool._connect_on_owner() + async def call_tool( + ctx: ServerRequestContext[Any], + params: types.CallToolRequestParams, + ) -> types.CallToolResult | types.InputRequiredResult: + arguments = params.arguments + assert arguments is not None + calls.append((ctx.request_id, params.name, arguments, params.request_state)) + if params.request_state is None: + return types.InputRequiredResult(request_state="opaque-tool-state") + return types.CallToolResult(content=[types.TextContent(type="text", text=f"Hello, {arguments['name']}!")]) - tool.session.list_tools.assert_not_called() - tool.session.list_prompts.assert_not_called() - assert tool._supports_tools is False - assert tool._supports_prompts is False - assert tool._supports_logging is False + server = Server("mrtr-tool-server", on_list_tools=list_tools, on_call_tool=call_tool) + tool = _mcp_tool_for_in_process_server(server, load_tools=True, load_prompts=False) + async with tool: + result = await tool.call_tool("greet", name="Ada") -async def test_connect_sets_logging_level_when_server_advertises_logging() -> None: - tool = MCPTool(name="test_tool", load_tools=False, load_prompts=False) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.is_connected = True - tool.session = Mock() - tool.session._request_id = 0 - tool.session.initialize = AsyncMock( - return_value=types.InitializeResult( - protocolVersion=types.LATEST_PROTOCOL_VERSION, - capabilities=types.ServerCapabilities(logging=types.LoggingCapability()), - serverInfo=types.Implementation(name="test", version="1.0"), + assert _mcp_result_to_text(result) == "Hello, Ada!" + assert [(name, arguments, state) for _, name, arguments, state in calls] == [ + ("greet", {"name": "Ada"}, None), + ("greet", {"name": "Ada"}, "opaque-tool-state"), + ] + assert calls[0][0] is not None + assert calls[1][0] is not None + assert calls[0][0] != calls[1][0] + + +async def test_tool_call_resolves_sampling_mrtr_input_request_through_existing_approval_surface() -> None: + from mcp.server import Server, ServerRequestContext + + calls: list[tuple[int | str | None, dict[str, Any] | None, str | None]] = [] + approvals: list[types.CreateMessageRequestParams] = [] + sampling_request = types.CreateMessageRequest( + params=types.CreateMessageRequestParams( + messages=[ + types.SamplingMessage( + role="user", + content=types.TextContent(type="text", text="What is the capital of France?"), + ) + ], + max_tokens=32, ) ) - tool.session.set_logging_level = AsyncMock() - with patch.object(logger, "level", logging.INFO): - await tool._connect_on_owner() + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + return types.ListToolsResult( + tools=[types.Tool(name="answer", input_schema={"type": "object", "properties": {}})] + ) - tool.session.set_logging_level.assert_awaited_once_with("info") - assert tool._supports_logging is True + async def call_tool( + ctx: ServerRequestContext[Any], + params: types.CallToolRequestParams, + ) -> types.CallToolResult | types.InputRequiredResult: + calls.append((ctx.request_id, params.input_responses, params.request_state)) + if params.input_responses is None: + return types.InputRequiredResult( + input_requests={"sample": sampling_request}, + request_state="opaque-sampling-state", + ) + sample = params.input_responses["sample"] + assert isinstance(sample, types.CreateMessageResult) + assert isinstance(sample.content, types.TextContent) + return types.CallToolResult(content=[types.TextContent(type="text", text=sample.content.text)]) + def approve(params: types.CreateMessageRequestParams) -> bool: + approvals.append(params) + return True -async def test_ensure_connected_skips_future_pings_when_ping_is_not_available() -> None: - tool = MCPTool(name="test_tool") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock( - send_ping=AsyncMock( - side_effect=McpError(types.ErrorData(code=-32601, message="Method 'ping' is not available.")) + chat_client = AsyncMock() + chat_client.get_response = AsyncMock(return_value=_make_sampling_response("Paris")) + server = Server("mrtr-sampling-server", on_list_tools=list_tools, on_call_tool=call_tool) + with pytest.warns(DeprecationWarning, match="MCP sampling"): + tool = _mcp_tool_for_in_process_server( + server, + load_tools=True, + load_prompts=False, + client=chat_client, + sampling_approval_callback=approve, ) - ) - with patch.object(tool, "_reconnect_without_loading", AsyncMock()) as mock_reconnect: - await tool._ensure_connected() - await tool._ensure_connected() + async with tool: + result = await tool.call_tool("answer") - tool.session.send_ping.assert_awaited_once() - mock_reconnect.assert_not_awaited() - assert tool._ping_available is False + assert _mcp_result_to_text(result) == "Paris" + assert approvals == [sampling_request.params] + assert [state for _, _, state in calls] == [None, "opaque-sampling-state"] + assert calls[0][0] is not None + assert calls[1][0] is not None + assert calls[0][0] != calls[1][0] -async def test_ensure_connected_reconnects_on_failed_ping() -> None: - tool = MCPTool(name="test_tool") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock(send_ping=AsyncMock(side_effect=RuntimeError("closed"))) +async def test_auto_mode_falls_back_to_legacy_sampling_backchannel() -> None: + from contextlib import asynccontextmanager - with patch.object(tool, "_reconnect_without_loading", AsyncMock()) as mock_reconnect: - await tool._ensure_connected() + import anyio + from mcp.shared.memory import create_client_server_memory_streams + from mcp.shared.message import SessionMessage - mock_reconnect.assert_awaited_once_with() + sampling_params = types.CreateMessageRequestParams( + messages=[ + types.SamplingMessage( + role="user", + content=types.TextContent(type="text", text="What is the capital of France?"), + ) + ], + max_tokens=32, + ) + discover_calls = 0 + initialize_capabilities: dict[str, Any] | None = None + approvals: list[types.CreateMessageRequestParams] = [] + + @asynccontextmanager + async def legacy_transport() -> AsyncGenerator[tuple[Any, Any]]: + async with create_client_server_memory_streams() as (client_streams, server_streams): + client_read, client_write = client_streams + server_read, server_write = server_streams + + async def run_server() -> None: + nonlocal discover_calls, initialize_capabilities + async for session_message in server_read: + if isinstance(session_message, Exception): + raise session_message + message = session_message.message + if isinstance(message, types.JSONRPCNotification): + continue + assert isinstance(message, types.JSONRPCRequest) + + if message.method == "server/discover": + discover_calls += 1 + response: types.JSONRPCResponse | types.JSONRPCError = types.JSONRPCError( + jsonrpc="2.0", + id=message.id, + error=types.ErrorData(code=types.METHOD_NOT_FOUND, message="Method not found"), + ) + elif message.method == "initialize": + assert message.params is not None + initialize_capabilities = message.params["capabilities"] + response = types.JSONRPCResponse( + jsonrpc="2.0", + id=message.id, + result={ + "protocolVersion": "2025-11-25", + "capabilities": {"tools": {}}, + "serverInfo": {"name": "legacy-sampling-server", "version": "1.0"}, + }, + ) + elif message.method == "ping": + response = types.JSONRPCResponse(jsonrpc="2.0", id=message.id, result={}) + elif message.method == "tools/list": + response = types.JSONRPCResponse( + jsonrpc="2.0", + id=message.id, + result={"tools": [{"name": "answer", "inputSchema": {"type": "object", "properties": {}}}]}, + ) + elif message.method == "tools/call": + await server_write.send( + SessionMessage( + types.JSONRPCRequest( + jsonrpc="2.0", + id="sampling-1", + method="sampling/createMessage", + params=sampling_params.model_dump(by_alias=True, mode="json", exclude_none=True), + ) + ) + ) + sample_message = await server_read.receive() + assert not isinstance(sample_message, Exception) + sample_response = sample_message.message + assert isinstance(sample_response, types.JSONRPCResponse) + assert sample_response.id == "sampling-1" + sample_content = sample_response.result["content"] + assert isinstance(sample_content, dict) + response = types.JSONRPCResponse( + jsonrpc="2.0", + id=message.id, + result={ + "content": [{"type": "text", "text": sample_content["text"]}], + "isError": False, + }, + ) + else: + raise AssertionError(f"Unexpected legacy MCP method: {message.method}") + await server_write.send(SessionMessage(response)) + + async with anyio.create_task_group() as task_group: + task_group.start_soon(run_server) + try: + yield client_read, client_write + finally: + await client_write.aclose() + + def approve(params: types.CreateMessageRequestParams) -> bool: + approvals.append(params) + return True + chat_client = AsyncMock() + chat_client.get_response = AsyncMock(return_value=_make_sampling_response("Paris")) + with pytest.warns(DeprecationWarning, match="MCP sampling"): + tool = _mcp_tool_for_in_process_server( + legacy_transport(), + load_tools=True, + load_prompts=False, + client=chat_client, + sampling_approval_callback=approve, + ) -async def test_ensure_connected_wraps_reconnect_failure() -> None: - tool = MCPTool(name="test_tool") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = Mock(send_ping=AsyncMock(side_effect=RuntimeError("closed"))) + async with tool: + assert _connected_client(tool).protocol_version == "2025-11-25" + result = await tool.call_tool("answer") - with ( - patch.object(tool, "_reconnect_without_loading", AsyncMock(side_effect=RuntimeError("still closed"))), - pytest.raises(ToolExecutionException, match="Failed to establish MCP connection"), - ): - await tool._ensure_connected() + assert discover_calls == 1 + assert initialize_capabilities is not None + assert "sampling" in initialize_capabilities + assert _mcp_result_to_text(result) == "Paris" + assert approvals == [sampling_params] + chat_client.get_response.assert_awaited_once() -async def test_load_tools_reconnects_on_closed_resource_when_ping_is_unavailable() -> None: - from anyio import ClosedResourceError +async def test_prompt_get_drives_state_only_mrtr_through_high_level_client() -> None: + from mcp.server import Server, ServerRequestContext - tool = MCPTool(name="test_tool", load_tools=True) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool._ping_available = False + calls: list[tuple[int | str | None, str, dict[str, str] | None, str | None]] = [] - first_session = Mock() - first_session.list_tools = AsyncMock(side_effect=ClosedResourceError()) - tool.session = first_session + async def list_prompts( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListPromptsResult: + return types.ListPromptsResult( + prompts=[ + types.Prompt( + name="briefing", + arguments=[types.PromptArgument(name="topic", required=True)], + ) + ] + ) - page = Mock() - page.tools = [] - page.nextCursor = None + async def get_prompt( + ctx: ServerRequestContext[Any], + params: types.GetPromptRequestParams, + ) -> types.GetPromptResult | types.InputRequiredResult: + arguments = params.arguments + assert arguments is not None + calls.append((ctx.request_id, params.name, arguments, params.request_state)) + if params.request_state is None: + return types.InputRequiredResult(request_state="opaque-prompt-state") + return types.GetPromptResult( + messages=[ + types.PromptMessage( + role="user", + content=types.TextContent(type="text", text=f"Explain {arguments['topic']}"), + ) + ] + ) - second_session = Mock() - second_session.list_tools = AsyncMock(return_value=page) + server = Server("mrtr-prompt-server", on_list_prompts=list_prompts, on_get_prompt=get_prompt) + tool = _mcp_tool_for_in_process_server(server, load_tools=False, load_prompts=True) - async def reconnect() -> None: - tool.session = second_session - tool._supports_tools = True + async with tool: + result = await tool.functions[0].invoke(topic="Python") - with patch.object(tool, "_reconnect_without_loading", AsyncMock(side_effect=reconnect)) as mock_reconnect: - await tool.load_tools() + assert _mcp_result_to_text(result) == "Explain Python" + assert [(name, arguments, state) for _, name, arguments, state in calls] == [ + ("briefing", {"topic": "Python"}, None), + ("briefing", {"topic": "Python"}, "opaque-prompt-state"), + ] + assert calls[0][0] is not None + assert calls[1][0] is not None + assert calls[0][0] != calls[1][0] - first_session.list_tools.assert_awaited_once() - mock_reconnect.assert_awaited_once_with() - second_session.list_tools.assert_awaited_once() +async def test_supplied_session_does_not_drive_mrtr_automatically() -> None: + from mcp import Client + from mcp.server import Server, ServerRequestContext -async def test_load_prompts_reconnects_on_closed_resource_when_ping_is_unavailable() -> None: - from anyio import ClosedResourceError + call_count = 0 - tool = MCPTool(name="test_tool", load_prompts=True) # type: ignore[abstract] # ty: ignore[call-non-callable] - tool._ping_available = False + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + return types.ListToolsResult( + tools=[types.Tool(name="greet", input_schema={"type": "object", "properties": {}})] + ) - first_session = Mock() - first_session.list_prompts = AsyncMock(side_effect=ClosedResourceError()) - tool.session = first_session + async def call_tool( + _ctx: ServerRequestContext[Any], + _params: types.CallToolRequestParams, + ) -> types.InputRequiredResult: + nonlocal call_count + call_count += 1 + return types.InputRequiredResult(request_state="caller-owned-state") - page = Mock() - page.prompts = [] - page.nextCursor = None + server = Server("mrtr-session-server", on_list_tools=list_tools, on_call_tool=call_tool) - second_session = Mock() - second_session.list_prompts = AsyncMock(return_value=page) + async with Client(server) as client: + wrapper = MCPStdioTool( + name="mrtr-session", + command="unused", + session=client.session, + load_prompts=False, + ) + async with wrapper: + with pytest.raises(ToolExecutionException, match="input_required"): + await wrapper.call_tool("greet") + assert call_count == 1 + assert call_count == 1 - async def reconnect() -> None: - tool.session = second_session - tool._supports_prompts = True - with patch.object(tool, "_reconnect_without_loading", AsyncMock(side_effect=reconnect)) as mock_reconnect: - await tool.load_prompts() +@pytest.mark.parametrize( + ("mode", "expected_version"), + [ + ("auto", "2026-07-28"), + ("legacy", "2025-11-25"), + ], +) +async def test_mcp_tool_reuses_supplied_client(mode: str, expected_version: str) -> None: + from mcp import Client + from mcp.server import Server, ServerRequestContext + + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + return types.ListToolsResult( + result_type="complete", + tools=[ + types.Tool( + name="greet", + input_schema={"type": "object", "properties": {}}, + ) + ], + ) - first_session.list_prompts.assert_awaited_once() - mock_reconnect.assert_awaited_once_with() - second_session.list_prompts.assert_awaited_once() + async def call_tool( + _ctx: ServerRequestContext[Any], + params: types.CallToolRequestParams, + ) -> types.CallToolResult: + assert params.name == "greet" + return types.CallToolResult( + result_type="complete", + content=[types.TextContent(type="text", text="Hello!")], + is_error=False, + ) + server = Server( + "test-server", + on_list_tools=list_tools, + on_call_tool=call_tool, + ) -async def test_mcp_tool_filters_framework_kwargs(): - """Test that call_tool filters out framework-specific kwargs before calling MCP session. + async with Client(server, mode=mode) as client: + session = client.session + assert client.protocol_version == expected_version - This verifies that non-serializable kwargs like response_format (Pydantic model class), - chat_options, tools, tool_choice, thread, conversation_id, and options are filtered out - before being passed to the external MCP server. - """ + client_list_tools = AsyncMock(wraps=client.list_tools) + client_call_tool = AsyncMock(wraps=client.call_tool) - class TestServer(MCPTool): - async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( - return_value=types.ListToolsResult( - tools=[ - types.Tool( - name="test_tool", - description="Test tool", - inputSchema={ - "type": "object", - "properties": {"param": {"type": "string"}}, - "required": ["param"], - }, - ) - ] - ) - ) - # Mock call_tool to capture the arguments it receives - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Success")]) + with ( + patch.object(client, "list_tools", client_list_tools), + patch.object(client, "call_tool", client_call_tool), + ): + wrapper = MCPStdioTool( + name="test", + command="unused", + mcp_client=client, + load_prompts=False, ) - def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: - return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] + with patch.object(wrapper, "get_mcp_client", side_effect=AssertionError("Unexpected transport")): + async with wrapper: + assert wrapper._connection is not None + assert wrapper._connection.client is client + assert wrapper._connection.is_framework_owned is False + assert wrapper.session is None + assert wrapper._server_capabilities == client.server_capabilities + assert [function.name for function in wrapper.functions] == ["greet"] + assert _mcp_result_to_text(await wrapper.call_tool("greet")) == "Hello!" - # Create a mock Pydantic model class to use as response_format - class MockResponseFormat(BaseModel): - result: str + assert wrapper._connection is not None + assert wrapper._connection.client is client + assert wrapper._connection.is_framework_owned is False - server = TestServer(name="test_server") - async with server: - await server.load_tools() - func = server.functions[0] + client_list_tools.assert_awaited() + client_call_tool.assert_awaited_once() - # Invoke the tool with framework kwargs that should be filtered out - await func.invoke( - context=FunctionInvocationContext( - function=func, - arguments={"param": "test_value"}, - kwargs={ - "response_format": MockResponseFormat, # Should be filtered - "chat_options": {"some": "option"}, # Should be filtered - "tools": [Mock()], # Should be filtered - "tool_choice": "auto", # Should be filtered - "session": Mock(), # Should be filtered - "conversation_id": "conv-123", # Should be filtered - "options": {"metadata": "value"}, # Should be filtered - }, - ), - ) + # The wrapper has closed, but the caller-owned Client must still work. + result = await client.call_tool("greet") + assert isinstance(result.content[0], types.TextContent) + assert result.content[0].text == "Hello!" + assert client.session is session - # Verify call_tool was called with only the valid argument - server.session.call_tool.assert_called_once() # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - call_args = server.session.call_tool.call_args # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - # Check that the arguments dict only contains 'param' and none of the framework kwargs - arguments = call_args.kwargs.get("arguments", call_args[1] if len(call_args) > 1 else {}) - assert arguments == {"param": "test_value"}, f"Expected only 'param' but got: {arguments}" +def test_mcp_transport_tools_preserve_supplied_client_ownership() -> None: + client = Mock() - # Explicitly verify that framework kwargs were NOT passed - assert "response_format" not in arguments - assert "chat_options" not in arguments - assert "tools" not in arguments - assert "tool_choice" not in arguments - assert "thread" not in arguments - assert "conversation_id" not in arguments - assert "options" not in arguments + tools = [ + MCPStdioTool( + name="stdio", + command="unused", + mcp_client=client, + load_tools=False, + load_prompts=False, + ), + MCPStreamableHTTPTool( + name="http", + url="https://example.com/mcp", + mcp_client=client, + load_tools=False, + load_prompts=False, + ), + ] + for tool in tools: + assert tool._connection is not None + assert tool._connection.client is client + assert tool._connection.session is None + assert tool._connection.is_framework_owned is False -# region: OTel trace context propagation via _meta +def test_mcp_session_getter_warns_for_low_level_compatibility_path() -> None: + session = Mock(spec=ClientSession) + tool = MCPStdioTool( + name="test", + command="unused", + session=session, + load_tools=False, + load_prompts=False, + ) -@pytest.mark.parametrize( - "use_span,expect_traceparent", - [ - (True, True), - (False, False), - ], -) -async def test_mcp_tool_call_tool_otel_meta(use_span, expect_traceparent, span_exporter): - """call_tool propagates OTel trace context via meta only when a span is active.""" - from opentelemetry import trace + with pytest.warns(DeprecationWarning, match=r"MCPTool\.session.*removed in vNext"): + assert tool.session is session - class TestServer(MCPTool): - async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( - return_value=types.ListToolsResult( - tools=[ - types.Tool( - name="test_tool", - description="Test tool", - inputSchema={ - "type": "object", - "properties": {"param": {"type": "string"}}, - "required": ["param"], - }, - ) - ] - ) - ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) - ) - def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: - return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] +@pytest.mark.parametrize("replacement", [None, Mock(spec=ClientSession)]) +def test_mcp_session_setter_rejects_client_backed_connection_without_mutating_state( + replacement: ClientSession | None, +) -> None: + client = Mock() + tool = MCPStdioTool( + name="test", + command="unused", + mcp_client=client, + load_tools=False, + load_prompts=False, + ) + connection = tool._connection + subscription_task = Mock() + reload_task = Mock() + tool.is_connected = True + tool._tools_loaded = True + tool._prompts_loaded = True + tool._capability_list_subscription_task = subscription_task + tool._pending_reload_tasks = {reload_task} - server = TestServer(name="test_server") - async with server: - await server.load_tools() + with pytest.raises(ValueError, match="uses a high-level MCP Client"): + tool.session = replacement - if use_span: - tracer = trace.get_tracer("test") - with tracer.start_as_current_span("test_span"): - await server.functions[0].invoke(param="test_value") - else: - # Use an invalid span to ensure no trace context is injected; - # call server.call_tool directly to bypass FunctionTool.invoke's own span. - with trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)): - await server.call_tool("test_tool", param="test_value") + assert tool._connection is connection + assert tool.is_connected is True + assert tool._tools_loaded is True + assert tool._prompts_loaded is True + assert tool._capability_list_subscription_task is subscription_task + assert tool._pending_reload_tasks == {reload_task} - meta = server.session.call_tool.call_args.kwargs.get("meta") # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - if expect_traceparent: - # When a valid span is active, we expect some propagation fields to be injected, - # but we do not assume any specific header name to keep this test propagator-agnostic. - assert meta is not None - assert isinstance(meta, dict) - assert len(meta) > 0 - else: - assert meta is None +def test_mcp_streamable_http_rejects_header_provider_with_supplied_client() -> None: + with pytest.raises(ValueError, match="header_provider.*mcp_client"): + MCPStreamableHTTPTool( + name="test", + url="https://example.com/mcp", + mcp_client=Mock(), + header_provider=lambda _: {"Authorization": "Bearer token"}, + load_tools=False, + load_prompts=False, + ) -async def test_mcp_tool_call_tool_forwards_tool_list_meta(): - """call_tool echoes per-tool metadata returned by tools/list.""" - from opentelemetry import trace - tool_meta = { - "tool_configuration": { - "name": "WorkIQSharePoint.readSmallBinaryFile", - "type": "foundry_toolbox", - } - } +def test_mcp_tool_rejects_supplied_client_and_session() -> None: + with pytest.raises(ValueError, match="mutually exclusive"): + MCPStdioTool( + name="test", + command="unused", + mcp_client=Mock(), + session=Mock(spec=ClientSession), + load_tools=False, + load_prompts=False, + ) - class TestServer(MCPTool): - async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( - return_value=types.ListToolsResult( - tools=[ - types.Tool( - name="WorkIQSharePoint.readSmallBinaryFile", - description="Read a binary file", - inputSchema={ - "type": "object", - "properties": {"fileId": {"type": "string"}}, - "required": ["fileId"], - }, - _meta=tool_meta, - ) - ] - ) - ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) - ) - self.session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[])) - def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: - return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] +async def test_mcp_tool_rejects_unentered_supplied_client() -> None: + from mcp import Client + from mcp.server import Server - server = TestServer(name="test_server") - async with server: - await server.load_tools() - await server.load_prompts() + client = Client(Server("test-server")) + wrapper = MCPStdioTool( + name="test", + command="unused", + mcp_client=client, + load_tools=False, + load_prompts=False, + ) - with trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)): - await server.call_tool("WorkIQSharePoint.readSmallBinaryFile", fileId="file-1") + with pytest.raises(RuntimeError, match="Client must be used within an async context manager"): + await wrapper.connect() - assert server.session.call_tool.call_args.kwargs["meta"] == tool_meta # type: ignore[union-attr] # ty: ignore[unresolved-attribute] +async def test_mcp_tool_reset_preserves_supplied_client() -> None: + from mcp import Client + from mcp.server import Server -async def test_mcp_tool_call_tool_user_meta_merges_with_tool_list_meta(): - """Tools/list _meta should win over caller-provided _meta on conflicts.""" - from opentelemetry import trace + async with Client(Server("test-server")) as client: + session = client.session + wrapper = MCPStdioTool( + name="test", + command="unused", + mcp_client=client, + load_tools=False, + load_prompts=False, + ) - tool_meta = {"from_tool": "tool-value", "shared": "tool-value"} - user_meta = {"from_user": "user-value", "shared": "user-value"} + await wrapper.connect() + connection = wrapper._connection + assert connection is not None + assert connection.client is client + assert connection.is_framework_owned is False + assert wrapper._server_capabilities == client.server_capabilities - class TestServer(MCPTool): - async def connect(self) -> None: # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( - return_value=types.ListToolsResult( - tools=[ - types.Tool( - name="test_tool", - description="Test tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, - _meta=tool_meta, - ) - ] - ) - ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) - ) + await wrapper.connect(reset=True) - def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: - return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] + reset_connection = wrapper._connection + assert reset_connection is not None + assert reset_connection is connection + assert reset_connection.client is client + assert reset_connection.is_framework_owned is False + assert wrapper._server_capabilities == client.server_capabilities - server = TestServer(name="test_server") - async with server: - await server.load_tools() + await wrapper.close() - with trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)): - await server.call_tool("test_tool", param="test_value", _meta=user_meta) + assert wrapper._connection is connection + assert client.session is session - call_kwargs = server.session.call_tool.call_args.kwargs # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - assert call_kwargs["arguments"] == {"param": "test_value"} - assert call_kwargs["meta"] == { - "from_tool": "tool-value", - "from_user": "user-value", - "shared": "tool-value", - } - assert user_meta == {"from_user": "user-value", "shared": "user-value"} +@pytest.mark.parametrize( + ("mode", "expected_version"), + [ + ("auto", "2026-07-28"), + ("legacy", "2025-11-25"), + ], +) +async def test_mcp_tool_reuses_supplied_session(mode: str, expected_version: str) -> None: + from mcp import Client + from mcp.server import Server, ServerRequestContext + + async def list_tools( + _ctx: ServerRequestContext[Any], + _params: types.PaginatedRequestParams | None, + ) -> types.ListToolsResult: + return types.ListToolsResult( + result_type="complete", + tools=[ + types.Tool( + name="greet", + input_schema={"type": "object", "properties": {}}, + ) + ], + ) -async def test_mcp_tool_function_invocation_strips_model_supplied_meta() -> None: - """Model-supplied _meta should not become MCP request metadata.""" - from opentelemetry import trace + async def call_tool( + _ctx: ServerRequestContext[Any], + params: types.CallToolRequestParams, + ) -> types.CallToolResult: + assert params.name == "greet" + return types.CallToolResult( + result_type="complete", + content=[types.TextContent(type="text", text="Hello!")], + is_error=False, + ) - class TestServer(MCPTool): - async def connect(self) -> None: # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( - return_value=types.ListToolsResult( - tools=[ - types.Tool( - name="test_tool", - description="Test tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, - ) - ] - ) - ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) - ) + server = Server( + "test-server", + on_list_tools=list_tools, + on_call_tool=call_tool, + ) - def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: - return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] + async with Client(server, mode=mode) as client: + session = client.session + assert session.protocol_version == expected_version - server = TestServer(name="test_server") - async with server: - await server.load_tools() + initialize = AsyncMock(wraps=session.initialize) + discover = AsyncMock(wraps=session.discover) + send_ping = AsyncMock(wraps=session.send_ping) with ( - trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)), - patch("agent_framework._mcp.propagate.inject", side_effect=lambda carrier: None), + patch.object(session, "initialize", initialize), + patch.object(session, "discover", discover), + patch.object(session, "send_ping", send_ping), ): - await server.functions[0].invoke( - arguments={"param": "test_value", "_meta": {"attacker.example/route": "evil"}} + wrapper = MCPStdioTool( + name="test", + command="unused", + session=session, + load_prompts=False, ) - call_kwargs = server.session.call_tool.call_args.kwargs # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - assert call_kwargs["arguments"] == {"param": "test_value"} - assert call_kwargs["meta"] is None + async with wrapper: + assert wrapper._connection is not None + assert wrapper._connection.client is None + assert wrapper._connection.is_framework_owned is False + assert wrapper.session is session + assert [function.name for function in wrapper.functions] == ["greet"] + assert _mcp_result_to_text(await wrapper.call_tool("greet")) == "Hello!" + + assert wrapper._connection is not None + assert wrapper._connection.client is None + assert wrapper._connection.is_framework_owned is False + initialize.assert_not_awaited() + discover.assert_not_awaited() + if mode == "auto": + send_ping.assert_not_awaited() + + # The wrapper has closed, but the caller-owned session must still work. + result = await session.call_tool("greet") + assert isinstance(result.content[0], types.TextContent) + assert result.content[0].text == "Hello!" + + +async def test_replacing_supplied_session_preserves_caller_ownership() -> None: + """Test compatibility assignment does not transfer session ownership.""" + original_session = Mock(spec=ClientSession) + replacement_session = Mock(spec=ClientSession) + replacement_session.protocol_version = "2026-07-28" + replacement_session.server_capabilities = types.ServerCapabilities() + replacement_session.initialize_result = None + tool = MCPStdioTool( + name="test", + command="unused", + session=original_session, + load_tools=False, + load_prompts=False, + ) + with pytest.warns(DeprecationWarning, match=r"MCPTool\.session.*removed in vNext"): + tool.session = None + with pytest.warns(DeprecationWarning, match=r"MCPTool\.session.*removed in vNext"): + tool.session = replacement_session -async def test_mcp_tool_function_invocation_preserves_trusted_meta_over_model_meta() -> None: - """Trusted function-invocation _meta should be restored after model arguments are merged.""" - from opentelemetry import trace + with patch.object(tool, "get_mcp_client", side_effect=AssertionError("Unexpected transport")): + await tool.connect(reset=True) + assert tool._connection is not None + assert tool._connection.is_framework_owned is False + with pytest.warns(DeprecationWarning, match=r"MCPTool\.session.*removed in vNext"): + assert tool.session is replacement_session + await tool.close() - trusted_meta = {"trusted.example/route": "trusted"} + assert tool._connection is not None + assert tool._connection.is_framework_owned is False + assert tool._connection.session is replacement_session - class TestServer(MCPTool): - async def connect(self) -> None: # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( - return_value=types.ListToolsResult( - tools=[ - types.Tool( - name="test_tool", - description="Test tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, - ) - ] - ) - ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) - ) - def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: - return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] +async def test_connect_reinitializes_existing_session_and_loads_tools_and_prompts() -> None: + session = _mock_unnegotiated_session( + types.ServerCapabilities(tools=types.ToolsCapability(), prompts=types.PromptsCapability()) + ) + tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] + name="test_tool", + load_tools=True, + load_prompts=True, + session=session, + ) + tool.is_connected = True - server = TestServer(name="test_server") - async with server: - await server.load_tools() - - context = FunctionInvocationContext( - function=server.functions[0], - arguments={}, - kwargs={"_meta": trusted_meta}, - ) - with ( - trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)), - patch("agent_framework._mcp.propagate.inject", side_effect=lambda carrier: None), - ): - await server.functions[0].invoke( - arguments={"param": "test_value", "_meta": {"attacker.example/route": "evil"}}, - context=context, - ) + with ( + patch.object(tool, "load_tools", AsyncMock()) as mock_load_tools, + patch.object(tool, "load_prompts", AsyncMock()) as mock_load_prompts, + patch.object(logger, "level", logging.NOTSET), + ): + await tool._connect_on_owner() - call_kwargs = server.session.call_tool.call_args.kwargs # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - assert call_kwargs["arguments"] == {"param": "test_value"} - assert call_kwargs["meta"] == trusted_meta + session.initialize.assert_awaited_once() + mock_load_tools.assert_awaited_once() + mock_load_prompts.assert_awaited_once() + assert tool._tools_loaded is True + assert tool._prompts_loaded is True -async def test_mcp_tool_call_tool_otel_meta_overrides_user_meta_but_not_tool_list_meta() -> None: - """OpenTelemetry should override caller metadata while tools/list metadata remains most trusted.""" - from opentelemetry import trace +async def test_connect_skips_tools_and_prompts_when_server_does_not_advertise_capabilities() -> None: + session = _mock_unnegotiated_session(types.ServerCapabilities()) + session.list_tools = AsyncMock() + session.list_prompts = AsyncMock() + session.set_logging_level = AsyncMock() + tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] + name="test_tool", + load_tools=True, + load_prompts=True, + session=session, + ) + tool.is_connected = True - tool_meta = {"traceparent": "tool-traceparent", "from_tool": "tool-value"} - user_meta = {"traceparent": "user-traceparent", "from_user": "user-value"} + with patch.object(logger, "level", logging.INFO): + await tool._connect_on_owner() - class TestServer(MCPTool): - async def connect(self) -> None: # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( - return_value=types.ListToolsResult( - tools=[ - types.Tool( - name="test_tool", - description="Test tool", - inputSchema={"type": "object", "properties": {"param": {"type": "string"}}}, - _meta=tool_meta, - ) - ] - ) - ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) - ) + session.initialize.assert_awaited_once() + session.list_tools.assert_not_called() + session.list_prompts.assert_not_called() + session.set_logging_level.assert_not_called() + assert tool.is_connected is True + assert tool._supports_tools is False + assert tool._supports_prompts is False + assert tool._supports_logging is False + assert tool._tools_loaded is True + assert tool._prompts_loaded is True - def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: - return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] - server = TestServer(name="test_server") - async with server: - await server.load_tools() +async def test_connect_treats_missing_capabilities_as_unsupported() -> None: + session = _mock_unnegotiated_session(None) + session.list_tools = AsyncMock() + session.list_prompts = AsyncMock() + tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] + name="test_tool", + load_tools=True, + load_prompts=True, + session=session, + ) + tool.is_connected = True - with ( - trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)), - patch( - "agent_framework._mcp.propagate.inject", - side_effect=lambda carrier: carrier.update({"traceparent": "otel-traceparent"}), - ), - ): - await server.call_tool("test_tool", param="test_value", _meta=user_meta) + with patch.object(logger, "level", logging.NOTSET): + await tool._connect_on_owner() - call_kwargs = server.session.call_tool.call_args.kwargs # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - assert call_kwargs["meta"] == { - "traceparent": "tool-traceparent", - "from_tool": "tool-value", - "from_user": "user-value", - } + session.list_tools.assert_not_called() + session.list_prompts.assert_not_called() + assert tool._supports_tools is False + assert tool._supports_prompts is False + assert tool._supports_logging is False -async def test_mcp_streamable_http_tool_hook_not_duplicated_on_repeated_get_mcp_client(): - """Test that calling get_mcp_client multiple times does not accumulate duplicate hooks.""" - tool = MCPStreamableHTTPTool( - name="test", - url="http://example.com/mcp", - header_provider=lambda kw: {"X-Token": kw.get("token", "")}, +async def test_connect_sets_logging_level_when_server_advertises_logging() -> None: + session = _mock_unnegotiated_session(types.ServerCapabilities(logging=types.LoggingCapability())) + session.set_logging_level = AsyncMock() + tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] + name="test_tool", + load_tools=False, + load_prompts=False, + session=session, ) + tool.is_connected = True - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool.get_mcp_client() - tool.get_mcp_client() - tool.get_mcp_client() + with patch.object(logger, "level", logging.INFO): + await tool._connect_on_owner() - assert tool._httpx_client is not None - hooks = tool._httpx_client.event_hooks.get("request", []) - assert len(hooks) == 1, f"Expected exactly one hook, got {len(hooks)}" - finally: - if getattr(tool, "_httpx_client", None) is not None: - await tool._httpx_client.aclose() # type: ignore[union-attr] + session.set_logging_level.assert_awaited_once_with("info") + assert tool._supports_logging is True -# endregion +async def test_ensure_connected_skips_future_pings_when_ping_is_not_available() -> None: + tool = MCPTool(name="test_tool") # type: ignore[abstract] # ty: ignore[call-non-callable] + mock_session = Mock(send_ping=AsyncMock(side_effect=MCPError(-32601, "Method 'ping' is not available."))) + tool.session = mock_session + with patch.object(tool, "_reconnect_without_loading", AsyncMock()) as mock_reconnect: + await tool._ensure_connected() + await tool._ensure_connected() -# region: MCPStreamableHTTPTool header_provider + mock_session.send_ping.assert_awaited_once() + mock_reconnect.assert_not_awaited() + assert tool._ping_available is False -async def test_mcp_streamable_http_tool_header_provider_injects_headers(): - """Test that header_provider integrates with call_tool via runtime kwargs. +async def test_ensure_connected_reconnects_on_failed_ping() -> None: + tool = MCPTool(name="test_tool") # type: ignore[abstract] # ty: ignore[call-non-callable] + tool.session = Mock(send_ping=AsyncMock(side_effect=RuntimeError("closed"))) - When header_provider is configured, runtime kwargs from FunctionInvocationContext - are passed to the provider and the MCP session.call_tool is invoked successfully. + with patch.object(tool, "_reconnect_without_loading", AsyncMock()) as mock_reconnect: + await tool._ensure_connected() + + mock_reconnect.assert_awaited_once_with() + + +async def test_ensure_connected_wraps_reconnect_failure() -> None: + tool = MCPTool(name="test_tool") # type: ignore[abstract] # ty: ignore[call-non-callable] + tool.session = Mock(send_ping=AsyncMock(side_effect=RuntimeError("closed"))) + + with ( + patch.object(tool, "_reconnect_without_loading", AsyncMock(side_effect=RuntimeError("still closed"))), + pytest.raises(ToolExecutionException, match="Failed to establish MCP connection"), + ): + await tool._ensure_connected() + + +async def test_load_tools_reconnects_on_closed_resource_when_ping_is_unavailable() -> None: + from anyio import ClosedResourceError + + tool = MCPTool(name="test_tool", load_tools=True) # type: ignore[abstract] # ty: ignore[call-non-callable] + tool._ping_available = False + + first_session = Mock() + first_session.list_tools = AsyncMock(side_effect=ClosedResourceError()) + tool.session = first_session + + page = Mock() + page.tools = [] + page.next_cursor = None + + second_session = Mock() + second_session.list_tools = AsyncMock(return_value=page) + + async def reconnect() -> None: + tool.session = second_session + tool._supports_tools = True + + with patch.object(tool, "_reconnect_without_loading", AsyncMock(side_effect=reconnect)) as mock_reconnect: + await tool.load_tools() + + first_session.list_tools.assert_awaited_once() + mock_reconnect.assert_awaited_once_with() + second_session.list_tools.assert_awaited_once() + + +async def test_load_prompts_reconnects_on_closed_resource_when_ping_is_unavailable() -> None: + from anyio import ClosedResourceError + + tool = MCPTool(name="test_tool", load_prompts=True) # type: ignore[abstract] # ty: ignore[call-non-callable] + tool._ping_available = False + + first_session = Mock() + first_session.list_prompts = AsyncMock(side_effect=ClosedResourceError()) + tool.session = first_session + + page = Mock() + page.prompts = [] + page.next_cursor = None + + second_session = Mock() + second_session.list_prompts = AsyncMock(return_value=page) + + async def reconnect() -> None: + tool.session = second_session + tool._supports_prompts = True + + with patch.object(tool, "_reconnect_without_loading", AsyncMock(side_effect=reconnect)) as mock_reconnect: + await tool.load_prompts() + + first_session.list_prompts.assert_awaited_once() + mock_reconnect.assert_awaited_once_with() + second_session.list_prompts.assert_awaited_once() + + +async def test_mcp_tool_filters_framework_kwargs(): + """Test that call_tool filters out framework-specific kwargs before calling MCP session. + + This verifies that non-serializable kwargs like response_format (Pydantic model class), + chat_options, tools, tool_choice, thread, conversation_id, and options are filtered out + before being passed to the external MCP server. """ - class _TestServer(MCPStreamableHTTPTool): + class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( - name="greet", - description="Says hello", - inputSchema={ + name="test_tool", + description="Test tool", + input_schema={ "type": "object", - "properties": {"name": {"type": "string"}}, - "required": ["name"], + "properties": {"param": {"type": "string"}}, + "required": ["param"], }, ) ] ) ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + # Mock call_tool to capture the arguments it receives + mock_session.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Success")]) ) - self.session.send_ping = AsyncMock() - self.is_connected = True - def get_mcp_client(self): # pyrefly: ignore[bad-override] - return None + def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: + return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] - def provider(kwargs): - return {"X-Some-Token": kwargs.get("some_token", "")} + # Create a mock Pydantic model class to use as response_format + class MockResponseFormat(BaseModel): + result: str - server = _TestServer( - name="test", - url="http://example.com/mcp", - header_provider=provider, - ) + server = TestServer(name="test_server") async with server: await server.load_tools() + func = server.functions[0] - # Simulate the runtime kwargs that flow from FunctionInvocationContext.kwargs - await server.call_tool("greet", name="Alice", some_token="my-secret") - - # Verify the MCP session.call_tool was called - server.session.call_tool.assert_called_once() # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - - -async def test_mcp_streamable_http_tool_header_provider_sets_contextvar(): - """Test that call_tool sets the contextvar with headers from header_provider.""" - from agent_framework._mcp import _mcp_call_headers - - observed_headers: list[dict[str, str]] = [] - original_call_tool = MCPTool.call_tool + # Invoke the tool with framework kwargs that should be filtered out + await func.invoke( + context=FunctionInvocationContext( + function=func, + arguments={"param": "test_value"}, + kwargs={ + "response_format": MockResponseFormat, # Should be filtered + "chat_options": {"some": "option"}, # Should be filtered + "tools": [Mock()], # Should be filtered + "tool_choice": "auto", # Should be filtered + "session": Mock(), # Should be filtered + "conversation_id": "conv-123", # Should be filtered + "options": {"metadata": "value"}, # Should be filtered + }, + ), + ) - async def spy_call_tool(self, tool_name, **kwargs): - # Capture the contextvar value during the super call - try: - observed_headers.append(_mcp_call_headers.get()) - except LookupError: - observed_headers.append({}) - return await original_call_tool(self, tool_name, **kwargs) + # Verify call_tool was called with only the valid argument + server.session.call_tool.assert_called_once() # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + call_args = server.session.call_tool.call_args # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - class _TestServer(MCPStreamableHTTPTool): + # Check that the arguments dict only contains 'param' and none of the framework kwargs + arguments = call_args.kwargs.get("arguments", call_args[1] if len(call_args) > 1 else {}) + assert arguments == {"param": "test_value"}, f"Expected only 'param' but got: {arguments}" + + # Explicitly verify that framework kwargs were NOT passed + assert "response_format" not in arguments + assert "chat_options" not in arguments + assert "tools" not in arguments + assert "tool_choice" not in arguments + assert "thread" not in arguments + assert "conversation_id" not in arguments + assert "options" not in arguments + + +# region: OTel trace context propagation via _meta + + +@pytest.mark.parametrize( + "use_span,expect_traceparent", + [ + (True, True), + (False, False), + ], +) +async def test_mcp_tool_call_tool_otel_meta(use_span, expect_traceparent, span_exporter): + """call_tool propagates OTel trace context via meta only when a span is active.""" + from opentelemetry import trace + + class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( - name="greet", - description="Says hello", - inputSchema={"type": "object", "properties": {"name": {"type": "string"}}}, + name="test_tool", + description="Test tool", + input_schema={ + "type": "object", + "properties": {"param": {"type": "string"}}, + "required": ["param"], + }, ) ] ) ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + mock_session.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) ) - self.session.send_ping = AsyncMock() - self.is_connected = True - def get_mcp_client(self): # pyrefly: ignore[bad-override] - return None + def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: + return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] - server = _TestServer( - name="test", - url="http://example.com/mcp", - header_provider=lambda kw: {"X-Auth": kw.get("auth_token", "")}, - ) + server = TestServer(name="test_server") async with server: await server.load_tools() - with patch.object(MCPTool, "call_tool", spy_call_tool): - await server.call_tool("greet", name="Alice", auth_token="bearer-xyz") + if use_span: + tracer = trace.get_tracer("test") + with tracer.start_as_current_span("test_span"): + await server.functions[0].invoke(param="test_value") + else: + # Use an invalid span to ensure no trace context is injected; + # call server.call_tool directly to bypass FunctionTool.invoke's own span. + with trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)): + await server.call_tool("test_tool", param="test_value") - assert len(observed_headers) == 1 - assert observed_headers[0] == {"X-Auth": "bearer-xyz"} + meta = server.session.call_tool.call_args.kwargs.get("meta") # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + if expect_traceparent: + # When a valid span is active, we expect some propagation fields to be injected, + # but we do not assume any specific header name to keep this test propagator-agnostic. + assert meta is not None + assert isinstance(meta, dict) + assert len(meta) > 0 + else: + assert meta is None -async def test_mcp_streamable_http_tool_header_provider_contextvar_reset_after_call(): - """Test that the contextvar is properly reset after call_tool completes.""" - from agent_framework._mcp import _mcp_call_headers +async def test_mcp_tool_call_tool_forwards_tool_list_meta(): + """call_tool echoes per-tool metadata returned by tools/list.""" + from opentelemetry import trace - class _TestServer(MCPStreamableHTTPTool): + tool_meta = { + "tool_configuration": { + "name": "WorkIQSharePoint.readSmallBinaryFile", + "type": "foundry_toolbox", + } + } + + class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( - name="greet", - description="Says hello", - inputSchema={"type": "object", "properties": {"name": {"type": "string"}}}, + name="WorkIQSharePoint.readSmallBinaryFile", + description="Read a binary file", + input_schema={ + "type": "object", + "properties": {"fileId": {"type": "string"}}, + "required": ["fileId"], + }, + _meta=tool_meta, ) ] ) ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + mock_session.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) ) - self.session.send_ping = AsyncMock() - self.is_connected = True + mock_session.list_prompts = AsyncMock(return_value=types.ListPromptsResult(prompts=[])) - def get_mcp_client(self): # pyrefly: ignore[bad-override] - return None + def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: + return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] - server = _TestServer( - name="test", - url="http://example.com/mcp", - header_provider=lambda kw: {"X-Token": kw.get("token", "")}, - ) + server = TestServer(name="test_server") async with server: await server.load_tools() - await server.call_tool("greet", name="Alice", token="secret") + await server.load_prompts() - # After call_tool, the contextvar should be unset (reset to no value) - with pytest.raises(LookupError): - _mcp_call_headers.get() + with trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)): + await server.call_tool("WorkIQSharePoint.readSmallBinaryFile", fileId="file-1") + assert server.session.call_tool.call_args.kwargs["meta"] == tool_meta # type: ignore[union-attr] # ty: ignore[unresolved-attribute] -async def test_mcp_streamable_http_tool_without_header_provider(): - """Test that call_tool works normally when no header_provider is configured.""" - class _TestServer(MCPStreamableHTTPTool): - async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( +async def test_mcp_tool_call_tool_user_meta_merges_with_tool_list_meta(): + """Tools/list _meta should win over caller-provided _meta on conflicts.""" + from opentelemetry import trace + + tool_meta = {"from_tool": "tool-value", "shared": "tool-value"} + user_meta = {"from_user": "user-value", "shared": "user-value"} + + class TestServer(MCPTool): + async def connect(self) -> None: # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( - name="greet", - description="Says hello", - inputSchema={"type": "object", "properties": {"name": {"type": "string"}}}, + name="test_tool", + description="Test tool", + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, + _meta=tool_meta, ) ] ) ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + mock_session.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) ) - self.session.send_ping = AsyncMock() - self.is_connected = True - def get_mcp_client(self): # pyrefly: ignore[bad-override] - return None + def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: + return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] - server = _TestServer( - name="test", - url="http://example.com/mcp", - ) + server = TestServer(name="test_server") async with server: await server.load_tools() - await server.call_tool("greet", name="Alice") - server.session.call_tool.assert_called_once() # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - # Without header_provider, call_tool should delegate directly to MCPTool - assert server._header_provider is None + with trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)): + await server.call_tool("test_tool", param="test_value", _meta=user_meta) + call_kwargs = server.session.call_tool.call_args.kwargs # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + assert call_kwargs["arguments"] == {"param": "test_value"} + assert call_kwargs["meta"] == { + "from_tool": "tool-value", + "from_user": "user-value", + "shared": "tool-value", + } + assert user_meta == {"from_user": "user-value", "shared": "user-value"} -async def test_mcp_streamable_http_tool_header_provider_with_httpx_event_hook(): - """Test that the httpx event hook injects headers from the contextvar.""" - from agent_framework._mcp import MCP_DEFAULT_SSE_READ_TIMEOUT, MCP_DEFAULT_TIMEOUT, _mcp_call_headers - tool = MCPStreamableHTTPTool( - name="test", - url="http://example.com/mcp", - header_provider=lambda kw: {"X-Custom": kw.get("custom", "")}, - ) +async def test_mcp_tool_function_invocation_strips_model_supplied_meta() -> None: + """Model-supplied _meta should not become MCP request metadata.""" + from opentelemetry import trace - try: - with patch("agent_framework._mcp.streamable_http_client"): - # Trigger get_mcp_client to set up the event hook - tool.get_mcp_client() + class TestServer(MCPTool): + async def connect(self) -> None: # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( + return_value=types.ListToolsResult( + tools=[ + types.Tool( + name="test_tool", + description="Test tool", + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, + ) + ] + ) + ) + mock_session.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) + ) - # The tool should have created an httpx client with the event hook - assert tool._httpx_client is not None - assert tool._httpx_client.follow_redirects is True - assert tool._httpx_client.timeout.connect == MCP_DEFAULT_TIMEOUT - assert tool._httpx_client.timeout.read == MCP_DEFAULT_SSE_READ_TIMEOUT - hooks = tool._httpx_client.event_hooks.get("request", []) - assert len(hooks) == 1, "Expected one request event hook" + def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: + return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] - # Simulate what happens during a call_tool: contextvar is set - token = _mcp_call_headers.set({"X-Custom": "test-value"}) - try: - request = _request_for_mcp_tool(tool) - await hooks[0](request) - assert request.headers.get("X-Custom") == "test-value" - finally: - _mcp_call_headers.reset(token) - finally: - # Ensure any created httpx client is properly closed - if getattr(tool, "_httpx_client", None) is not None: - await tool._httpx_client.aclose() # type: ignore[union-attr] + server = TestServer(name="test_server") + async with server: + await server.load_tools() + with ( + trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)), + patch("agent_framework._mcp.propagate.inject", side_effect=lambda carrier: None), + ): + await server.functions[0].invoke( + arguments={"param": "test_value", "_meta": {"attacker.example/route": "evil"}} + ) -async def test_mcp_streamable_http_tool_header_provider_injects_on_ambient_request(): - """Regression test for #7079: static header_provider must authenticate ambient requests. - - The initialize handshake, load_tools/load_prompts discovery, and background pings run - outside call_tool, so the contextvar/snapshot are unset. A static header_provider should - still be invoked (with empty kwargs) so these requests carry auth headers. - """ - tool = MCPStreamableHTTPTool( - name="test", - url="http://example.com/mcp", - header_provider=lambda kw: {"Authorization": "******"}, - ) - - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool.get_mcp_client() - - assert tool._httpx_client is not None - hooks = tool._httpx_client.event_hooks.get("request", []) - assert len(hooks) == 1 - - # No contextvar set and no active call snapshot: simulates the initialize handshake. - request = _request_for_mcp_tool(tool) - await hooks[0](request) - assert request.headers.get("Authorization") == "******" - finally: - if getattr(tool, "_httpx_client", None) is not None: - await tool._httpx_client.aclose() # type: ignore[union-attr] + call_kwargs = server.session.call_tool.call_args.kwargs # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + assert call_kwargs["arguments"] == {"param": "test_value"} + assert call_kwargs["meta"] is None -async def test_mcp_streamable_http_tool_header_provider_ambient_request_tolerates_kwargs_provider(): - """A header_provider that requires per-call kwargs must not crash ambient requests. - - Providers that index runtime kwargs (e.g. kw["mcp_api_key"]) which are absent at connect - time raise KeyError. The hook should swallow that specific error and proceed without headers - rather than failing the initialize handshake. - """ - tool = MCPStreamableHTTPTool( - name="test", - url="http://example.com/mcp", - header_provider=lambda kw: {"Authorization": f"Bearer {kw['mcp_api_key']}"}, - ) +async def test_mcp_tool_function_invocation_preserves_trusted_meta_over_model_meta() -> None: + """Trusted function-invocation _meta should be restored after model arguments are merged.""" + from opentelemetry import trace - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool.get_mcp_client() + trusted_meta = {"trusted.example/route": "trusted"} - assert tool._httpx_client is not None - hooks = tool._httpx_client.event_hooks.get("request", []) - assert len(hooks) == 1 + class TestServer(MCPTool): + async def connect(self) -> None: # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( + return_value=types.ListToolsResult( + tools=[ + types.Tool( + name="test_tool", + description="Test tool", + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, + ) + ] + ) + ) + mock_session.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) + ) - # No kwargs available at connect time -> provider raises KeyError -> hook swallows it. - request = _request_for_mcp_tool(tool) - await hooks[0](request) - assert "Authorization" not in request.headers - finally: - if getattr(tool, "_httpx_client", None) is not None: - await tool._httpx_client.aclose() # type: ignore[union-attr] + def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: + return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] + server = TestServer(name="test_server") + async with server: + await server.load_tools() -async def test_mcp_streamable_http_tool_header_provider_empty_active_call_skips_ambient_fallback(): - """Regression test: an active call that yields no headers must not trigger the ambient fallback. + context = FunctionInvocationContext( + function=server.functions[0], + arguments={}, + kwargs={"_meta": trusted_meta}, + ) + with ( + trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)), + patch("agent_framework._mcp.propagate.inject", side_effect=lambda carrier: None), + ): + await server.functions[0].invoke( + arguments={"param": "test_value", "_meta": {"attacker.example/route": "evil"}}, + context=context, + ) - When header_provider legitimately returns {} for a real call_tool invocation, the empty dict - is a valid "set" value. The hook must treat it as set-but-empty (leave the request unchanged) - rather than as "unset", which would re-invoke header_provider({}) mid-call and inject headers - the caller deliberately omitted. - """ - from agent_framework._mcp import _mcp_call_headers + call_kwargs = server.session.call_tool.call_args.kwargs # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + assert call_kwargs["arguments"] == {"param": "test_value"} + assert call_kwargs["meta"] == trusted_meta - call_count = 0 - def provider(kw: dict[str, Any]) -> dict[str, str]: - nonlocal call_count - call_count += 1 - # Non-empty for ambient ({}), empty for the active call below. - return {} if kw.get("suppress") else {"Authorization": "******"} +async def test_mcp_tool_call_tool_otel_meta_overrides_user_meta_but_not_tool_list_meta() -> None: + """OpenTelemetry should override caller metadata while tools/list metadata remains most trusted.""" + from opentelemetry import trace - tool = MCPStreamableHTTPTool(name="test", url="http://example.com/mcp", header_provider=provider) + tool_meta = {"traceparent": "tool-traceparent", "from_tool": "tool-value"} + user_meta = {"traceparent": "user-traceparent", "from_user": "user-value"} - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool.get_mcp_client() + class TestServer(MCPTool): + async def connect(self) -> None: # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( + return_value=types.ListToolsResult( + tools=[ + types.Tool( + name="test_tool", + description="Test tool", + input_schema={"type": "object", "properties": {"param": {"type": "string"}}}, + _meta=tool_meta, + ) + ] + ) + ) + mock_session.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="result")]) + ) - assert tool._httpx_client is not None - hooks = tool._httpx_client.event_hooks.get("request", []) - assert len(hooks) == 1 + def get_mcp_client(self) -> _AsyncGeneratorContextManager[Any, None]: + return None # type: ignore[return-value] # pyrefly: ignore[bad-return] # ty: ignore[invalid-return-type] - # Simulate an active call whose provider returned {} (both ContextVar and snapshot set). - token = _mcp_call_headers.set({}) - tool._active_call_headers = {} - try: - call_count = 0 - request = _request_for_mcp_tool(tool) - await hooks[0](request) - assert "Authorization" not in request.headers - assert call_count == 0, "ambient fallback must not run during a set-but-empty call" - finally: - tool._active_call_headers = None - _mcp_call_headers.reset(token) - finally: - if getattr(tool, "_httpx_client", None) is not None: - await tool._httpx_client.aclose() # type: ignore[union-attr] + server = TestServer(name="test_server") + async with server: + await server.load_tools() + with ( + trace.use_span(trace.NonRecordingSpan(trace.INVALID_SPAN_CONTEXT)), + patch( + "agent_framework._mcp.propagate.inject", + side_effect=lambda carrier: carrier.update({"traceparent": "otel-traceparent"}), + ), + ): + await server.call_tool("test_tool", param="test_value", _meta=user_meta) -async def test_mcp_streamable_http_tool_header_provider_ambient_kwarg_error_is_benign(caplog): - """A kwargs-dependent provider that raises KeyError on ambient requests must not fail them. + call_kwargs = server.session.call_tool.call_args.kwargs # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + assert call_kwargs["meta"] == { + "traceparent": "tool-traceparent", + "from_tool": "tool-value", + "from_user": "user-value", + } - Ambient requests (initialize/discovery plus recurring pings) call the provider with empty - kwargs, so a provider indexing a required per-call kwarg raises KeyError. That is tolerated: - the request proceeds without headers and only a DEBUG line is logged (no WARNING spam). - """ - import logging +async def test_mcp_streamable_http_tool_hook_not_duplicated_on_repeated_get_mcp_client(): + """Test that calling get_mcp_client multiple times does not accumulate duplicate hooks.""" tool = MCPStreamableHTTPTool( name="test", url="http://example.com/mcp", - header_provider=lambda kw: {"Authorization": "Bearer " + kw["mcp_api_key"]}, + header_provider=lambda kw: {"X-Token": kw.get("token", "")}, ) try: with patch("agent_framework._mcp.streamable_http_client"): tool.get_mcp_client() + tool.get_mcp_client() + tool.get_mcp_client() assert tool._httpx_client is not None hooks = tool._httpx_client.event_hooks.get("request", []) - assert len(hooks) == 1 - - with caplog.at_level(logging.DEBUG, logger="agent_framework._mcp"): - for _ in range(3): - request = _request_for_mcp_tool(tool) - await hooks[0](request) - assert "Authorization" not in request.headers - - # The benign kwargs case must not escalate to WARNING/ERROR. - assert not [r for r in caplog.records if r.levelno >= logging.WARNING] + assert len(hooks) == 1, f"Expected exactly one hook, got {len(hooks)}" finally: if getattr(tool, "_httpx_client", None) is not None: await tool._httpx_client.aclose() # type: ignore[union-attr] -async def test_mcp_streamable_http_tool_header_provider_ambient_non_keyerror_propagates(): - """A genuine header_provider failure on an ambient request must surface, not be swallowed. - - Only the missing-kwargs case (KeyError) is tolerated. Any other error - e.g. a token-refresh - failure or a provider bug - propagates so it is not silently converted into unauthenticated - traffic, matching the call_tool path which does not catch header_provider exceptions. - """ - - class TokenRefreshError(RuntimeError): - pass +# endregion - def failing_provider(kw: dict[str, Any]) -> dict[str, str]: - raise TokenRefreshError("token endpoint unreachable") - tool = MCPStreamableHTTPTool(name="test", url="http://example.com/mcp", header_provider=failing_provider) +# region: MCPStreamableHTTPTool header_provider - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool.get_mcp_client() - assert tool._httpx_client is not None - hooks = tool._httpx_client.event_hooks.get("request", []) - assert len(hooks) == 1 +async def test_mcp_streamable_http_tool_header_provider_injects_headers(): + """Test that header_provider integrates with call_tool via runtime kwargs. - with pytest.raises(TokenRefreshError): - await hooks[0](_request_for_mcp_tool(tool)) - finally: - if getattr(tool, "_httpx_client", None) is not None: - await tool._httpx_client.aclose() # type: ignore[union-attr] + When header_provider is configured, runtime kwargs from FunctionInvocationContext + are passed to the provider and the MCP session.call_tool is invoked successfully. + """ + class _TestServer(MCPStreamableHTTPTool): + async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] + session = Mock(spec=ClientSession) + sdk_client = _mock_sdk_client(session=session, protocol_version="2026-07-28") + sdk_client.list_tools = AsyncMock( + return_value=types.ListToolsResult( + tools=[ + types.Tool( + name="greet", + description="Says hello", + input_schema={ + "type": "object", + "properties": {"name": {"type": "string"}}, + "required": ["name"], + }, + ) + ] + ) + ) + sdk_client.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + ) + self._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) + self.is_connected = True -async def test_mcp_streamable_http_tool_header_provider_skips_cross_origin_redirect(): - """The request hook must not re-add caller headers after a cross-origin redirect.""" - import httpx + def get_mcp_client(self): # pyrefly: ignore[bad-override] + return None - from agent_framework._mcp import _mcp_call_headers + def provider(kwargs): + return {"X-Some-Token": kwargs.get("some_token", "")} - tool = MCPStreamableHTTPTool( + server = _TestServer( name="test", url="http://example.com/mcp", - header_provider=lambda kw: { - "Authorization": f"Bearer {kw.get('token', '')}", - "X-API-Key": kw.get("api_key", ""), - }, + header_provider=provider, ) + async with server: + await server.load_tools() - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool.get_mcp_client() + # Simulate the runtime kwargs that flow from FunctionInvocationContext.kwargs + await server.call_tool("greet", name="Alice", some_token="my-secret") - assert tool._httpx_client is not None - hooks = tool._httpx_client.event_hooks.get("request", []) - assert len(hooks) == 1 + # Verify the high-level Client.call_tool was called. + connection = server._connection + assert connection is not None + sdk_client = connection.client + assert sdk_client is not None + cast(AsyncMock, sdk_client.call_tool).assert_awaited_once() - token = _mcp_call_headers.set({"Authorization": "Bearer secret", "X-API-Key": "api-secret"}) - try: - same_origin = _request_for_mcp_tool(tool, "http://example.com/redirected") - await hooks[0](same_origin) - assert same_origin.headers.get("Authorization") == "Bearer secret" - assert same_origin.headers.get("X-API-Key") == "api-secret" - - cross_origin = httpx.Request( - "POST", - "http://attacker.example/capture", - headers=same_origin.headers, - extensions=same_origin.extensions, - ) - await hooks[0](cross_origin) - assert "Authorization" not in cross_origin.headers - assert "X-API-Key" not in cross_origin.headers - finally: - _mcp_call_headers.reset(token) - finally: - if getattr(tool, "_httpx_client", None) is not None: - await tool._httpx_client.aclose() # type: ignore[union-attr] - - -async def test_mcp_streamable_http_tool_keeps_bound_headers_on_same_origin_redirect(): - """A redirected request must retain the header set bound to its session.""" - import httpx - - provider_headers = {"X-Previous": "old"} - tool = MCPStreamableHTTPTool( - name="test", - url="http://example.com/mcp", - header_provider=lambda _kw: provider_headers, - ) - - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool.get_mcp_client() - - assert tool._httpx_client is not None - hooks = tool._httpx_client.event_hooks.get("request", []) - assert len(hooks) == 1 - - initial = _request_for_mcp_tool(tool, "http://example.com/start") - await hooks[0](initial) - assert initial.headers.get("X-Previous") == "old" - - provider_headers = {"X-Current": "new"} - same_origin_redirect = httpx.Request( - "POST", - "http://example.com/redirected", - headers=initial.headers, - extensions=initial.extensions, - ) - await hooks[0](same_origin_redirect) - assert same_origin_redirect.headers.get("X-Previous") == "old" - assert "X-Current" not in same_origin_redirect.headers - - cross_origin_redirect = httpx.Request( - "POST", - "http://other.example/redirected", - headers=same_origin_redirect.headers, - extensions=same_origin_redirect.extensions, - ) - await hooks[0](cross_origin_redirect) - assert "X-Previous" not in cross_origin_redirect.headers - assert "X-Current" not in cross_origin_redirect.headers - finally: - if getattr(tool, "_httpx_client", None) is not None: - await tool._httpx_client.aclose() # type: ignore[union-attr] - - -@pytest.mark.parametrize("use_header_provider", [False, True]) -async def test_mcp_streamable_http_tool_header_provider_with_user_httpx_client(use_header_provider: bool): - """Supplied clients preserve configuration, cookie persistence, and ownership.""" - import httpx - - from agent_framework._mcp import _mcp_call_headers - - def handle(request: httpx.Request) -> httpx.Response: - assert request.headers["X-Base"] == "static" - assert request.headers["Authorization"].startswith("Basic ") - assert request.headers["Cookie"] == "caller_session=kept" - return httpx.Response(200, headers={"Set-Cookie": "response_session=retained; Path=/"}) - - auth = httpx.BasicAuth("caller", "test-password") - async with httpx.AsyncClient( - transport=httpx.MockTransport(handle), - headers={"X-Base": "static"}, - cookies={"caller_session": "kept"}, - auth=auth, - timeout=17.0, - ) as user_client: - tool = MCPStreamableHTTPTool( - name="test", - url="http://example.com/mcp", - http_client=user_client, - header_provider=(lambda kw: {"X-Dynamic": kw.get("dynamic", "")}) if use_header_provider else None, - ) - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool.get_mcp_client() - assert tool._httpx_client is user_client - hooks = user_client.event_hooks["request"] - assert len(hooks) == int(use_header_provider) - if use_header_provider: - token = _mcp_call_headers.set({"X-Dynamic": "per-request"}) - try: - request = _request_for_mcp_tool(tool) - await hooks[0](request) - assert request.headers.get("X-Dynamic") == "per-request" - finally: - _mcp_call_headers.reset(token) - finally: - await tool.close() - assert not user_client.is_closed - assert user_client.auth is auth - assert user_client.timeout == httpx.Timeout(17.0) - assert not user_client.event_hooks["request"] - await user_client.get("http://example.com/unrelated") - assert user_client.cookies["caller_session"] == "kept" - assert user_client.cookies["response_session"] == "retained" - - -async def test_mcp_streamable_http_tool_header_provider_isolated_on_shared_httpx_client(): - """Each MCP transport must use its own headers when sharing an httpx client.""" - import httpx - - captured_headers: list[dict[str, str]] = [] - - async def handler(request: httpx.Request) -> httpx.Response: - captured_headers.append({key.lower(): value for key, value in request.headers.items()}) - return httpx.Response(200) - - user_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) - tool_a = MCPStreamableHTTPTool( - name="a", - url="http://example.com/mcp", - http_client=user_client, - header_provider=lambda _kw: {"Authorization": "Bearer A", "X-Principal-A": "present"}, - ) - tool_b = MCPStreamableHTTPTool( - name="b", - url="http://example.com/mcp", - http_client=user_client, - header_provider=lambda _kw: {"Authorization": "Bearer B", "X-Principal-B": "present"}, - ) - tool_without_provider = MCPStreamableHTTPTool( - name="anonymous", - url="http://example.com/mcp", - http_client=user_client, - ) - - try: - with patch("agent_framework._mcp.streamable_http_client") as mock_transport: - tool_a.get_mcp_client() - client_a = mock_transport.call_args.kwargs["http_client"] - tool_b.get_mcp_client() - client_b = mock_transport.call_args.kwargs["http_client"] - tool_without_provider.get_mcp_client() - client_without_provider = mock_transport.call_args.kwargs["http_client"] - - for client in (client_a, client_b, client_without_provider, client_a): - async with client.stream("POST", "http://example.com/mcp"): - pass - - assert captured_headers[0].get("authorization") == "Bearer A" - assert captured_headers[0].get("x-principal-a") == "present" - assert "x-principal-b" not in captured_headers[0] - assert captured_headers[1].get("authorization") == "Bearer B" - assert captured_headers[1].get("x-principal-b") == "present" - assert "x-principal-a" not in captured_headers[1] - assert "authorization" not in captured_headers[2] - assert "x-principal-a" not in captured_headers[2] - assert "x-principal-b" not in captured_headers[2] - assert captured_headers[3].get("authorization") == "Bearer A" - assert captured_headers[3].get("x-principal-a") == "present" - assert "x-principal-b" not in captured_headers[3] - finally: - await user_client.aclose() - - -async def test_mcp_streamable_http_tool_removes_header_hook_on_close(): - """Closing one tool must remove only its hook, and reconnecting must restore it.""" - import httpx - - user_client = httpx.AsyncClient() - tool_a = MCPStreamableHTTPTool( - name="a", - url="http://example.com/mcp", - http_client=user_client, - header_provider=lambda _kw: {"Authorization": "Bearer A"}, - ) - tool_b = MCPStreamableHTTPTool( - name="b", - url="http://example.com/mcp", - http_client=user_client, - header_provider=lambda _kw: {"Authorization": "Bearer B"}, - ) - - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool_a.get_mcp_client() - tool_b.get_mcp_client() - assert len(user_client.event_hooks["request"]) == 2 - - await tool_a.close() - assert user_client.event_hooks["request"] == [tool_b._inject_headers_hook] - - # Reconnecting after close re-attaches exactly one hook for tool A. - with patch("agent_framework._mcp.streamable_http_client"): - tool_a.get_mcp_client() - tool_a.get_mcp_client() - assert user_client.event_hooks["request"].count(tool_a._inject_headers_hook) == 1 - assert len(user_client.event_hooks["request"]) == 2 - finally: - await user_client.aclose() - - -async def test_mcp_streamable_http_tool_removes_hook_without_mutating_active_hook_list(): - """Closing one tool must not disrupt an in-progress iteration over shared hooks.""" - import httpx - - from agent_framework._mcp import _MCP_INJECTED_HEADER_KEYS_EXTENSION - - captured_headers: list[httpx.Headers] = [] - - async def handler(request: httpx.Request) -> httpx.Response: - captured_headers.append(request.headers) - return httpx.Response(200) - - user_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) - tool_a = MCPStreamableHTTPTool( - name="a", - url="http://example.com/mcp", - http_client=user_client, - header_provider=lambda _kw: {"Authorization": "Bearer token-a"}, - ) - tool_b = MCPStreamableHTTPTool( - name="b", - url="http://example.com/mcp", - http_client=user_client, - header_provider=lambda _kw: {"X-API-Key": "current"}, - ) - hook_started = asyncio.Event() - allow_hook = asyncio.Event() - - async def delayed_hook(_request: httpx.Request) -> None: - hook_started.set() - await allow_hook.wait() - - send_task: asyncio.Task[httpx.Response] | None = None - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool_a.get_mcp_client() - tool_b.get_mcp_client() - user_client.event_hooks["request"].insert(1, delayed_hook) - - request = httpx.Request( - "POST", - "http://other.example/redirected", - headers={"X-API-Key": "previous"}, - extensions={ - _MCP_HEADER_OWNER_EXTENSION: tool_b._header_request_owner, - _MCP_INJECTED_HEADER_KEYS_EXTENSION: ("X-API-Key",), - }, - ) - send_task = asyncio.create_task(user_client.send(request)) - await hook_started.wait() - - await tool_a.close() - allow_hook.set() - await send_task - - assert len(captured_headers) == 1 - assert "X-API-Key" not in captured_headers[0] - finally: - allow_hook.set() - if send_task is not None: - await send_task - await user_client.aclose() - - -async def test_mcp_streamable_http_tool_keeps_header_hook_until_cancelled_close_finishes(): - """Caller cancellation must not remove the hook while lifecycle teardown continues.""" - import httpx - - user_client = httpx.AsyncClient() - tool = MCPStreamableHTTPTool( - name="test", - url="http://example.com/mcp", - http_client=user_client, - header_provider=lambda _kw: {"Authorization": "Bearer token"}, - ) - close_started = asyncio.Event() - allow_close = asyncio.Event() - # Recorded rather than asserted here: an assertion raised on the lifecycle owner task - # is swallowed by its error handling, so it would pass even when the hook is detached. - hook_attached_during_teardown: list[bool] = [] - - async def delayed_close() -> None: - close_started.set() - await allow_close.wait() - hook_attached_during_teardown.append(tool._inject_headers_hook in user_client.event_hooks["request"]) - - try: - with patch("agent_framework._mcp.streamable_http_client"): - tool.get_mcp_client() - assert tool._inject_headers_hook in user_client.event_hooks["request"] - - with patch.object(MCPTool, "_close_on_owner", side_effect=delayed_close): - close_task = asyncio.create_task(tool.close()) - await close_started.wait() - owner_task = tool._lifecycle_owner_task - assert owner_task is not None - - close_task.cancel() - with pytest.raises(asyncio.CancelledError): - await close_task - assert tool._inject_headers_hook in user_client.event_hooks["request"] - - allow_close.set() - await owner_task - - assert hook_attached_during_teardown == [True] - assert tool._inject_headers_hook not in user_client.event_hooks["request"] - finally: - allow_close.set() - owner_task = tool._lifecycle_owner_task - if owner_task is not None: - await owner_task - await user_client.aclose() - - -async def test_mcp_header_scoped_client_tags_send_requests(): - """The transport wrapper must identify requests sent through AsyncClient.send.""" - import httpx - - from agent_framework._mcp import _MCP_HEADER_OWNER_EXTENSION, _MCPHeaderScopedClient - - owner = object() - observed_owners: list[object | None] = [] - - async def handle(request: httpx.Request) -> httpx.Response: - observed_owners.append(request.extensions.get(_MCP_HEADER_OWNER_EXTENSION)) - return httpx.Response(200) - - async with httpx.AsyncClient(transport=httpx.MockTransport(handle)) as user_client: - wrapper = _MCPHeaderScopedClient(user_client, owner) - request = user_client.build_request("POST", "http://example.com/mcp") - - response = await wrapper.send(request) - - assert response.status_code == 200 - assert observed_owners == [owner] - - -async def test_mcp_header_scoped_client_delegates_unwrapped_attributes(): - """The transport wrapper must stay a drop-in for the caller's httpx client.""" - import httpx - - from agent_framework._mcp import _MCPHeaderScopedClient - - user_client = httpx.AsyncClient(headers={"X-Base": "static"}, follow_redirects=True) - try: - wrapper = _MCPHeaderScopedClient(user_client, object()) - assert wrapper.headers["X-Base"] == "static" - assert wrapper.follow_redirects is True - assert wrapper.build_request("POST", "http://example.com/mcp").method == "POST" - finally: - await user_client.aclose() - - -async def test_mcp_streamable_http_tool_header_provider_via_invoke_with_context(): - """Test that header_provider receives kwargs via FunctionTool.invoke with FunctionInvocationContext. - - This exercises the full pipeline: FunctionInvocationContext.kwargs -> FunctionTool.invoke - -> MCPStreamableHTTPTool.call_tool -> header_provider. - """ - from agent_framework._mcp import _mcp_call_headers - - observed_headers: list[dict[str, str]] = [] - original_call_tool = MCPStreamableHTTPTool.call_tool - - async def spy_call_tool(self, tool_name, **kwargs): - # Capture the contextvar value set by call_tool before delegating - result = await original_call_tool(self, tool_name, **kwargs) - try: - observed_headers.append(_mcp_call_headers.get()) - except LookupError: - observed_headers.append({}) - return result - - class _TestServer(MCPStreamableHTTPTool): - async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( - return_value=types.ListToolsResult( - tools=[ - types.Tool( - name="greet", - description="Says hello", - inputSchema={ - "type": "object", - "properties": {"name": {"type": "string"}}, - "required": ["name"], - }, - ) - ] - ) - ) - self.session.call_tool = AsyncMock( - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) - ) - self.session.send_ping = AsyncMock() - self.is_connected = True - - def get_mcp_client(self): # pyrefly: ignore[bad-override] - return None - - provider_received: list[dict] = [] - - def provider(kwargs): - provider_received.append(dict(kwargs)) - return {"X-Some-Token": kwargs.get("some_token", "")} - - server = _TestServer( - name="test", - url="http://example.com/mcp", - header_provider=provider, - ) - async with server: - await server.load_tools() - func = server.functions[0] - - with patch.object(MCPStreamableHTTPTool, "call_tool", spy_call_tool): - result = await _auto_invoke_function( - Content.from_function_call( - call_id="call-greet", - name=func.name, - arguments={"name": "Alice"}, - ), - custom_args={"some_token": "my-secret"}, - config=normalize_function_invocation_configuration(None), - tool_map={func.name: func}, - host_payload_budget=_FunctionResultPayloadBudget(), - ) - - # Verify the invoke produced a result - assert result.items is not None - assert result.items[0].text == "Hello!" - assert _MCP_TOOL_RESULT_HOST_PAYLOAD_KEY in result.additional_properties - assert all(_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY not in item.additional_properties for item in result.items) - - # Verify header_provider was called with the runtime kwargs - assert len(provider_received) == 1 - assert provider_received[0]["some_token"] == "my-secret" - - # Verify session.call_tool was called with the tool arguments (not the runtime kwargs) - server.session.call_tool.assert_called_once() # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - call_args = server.session.call_tool.call_args # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - assert call_args.kwargs.get("arguments", {}).get("name") == "Alice" - - -async def test_agent_run_supplies_mcp_connect_headers( - client: SupportsChatGetResponse, -) -> None: - """Run-time credentials should authenticate implicit MCP initialization. - - The agent receives function_invocation_kwargs before connecting the MCP tool - supplied to run(). This test exercises the real MCP transport against an - in-process mock HTTP endpoint and asserts that header_provider can use those - credentials on the initialize request, before any tool invocation occurs. - """ - import httpx - - captured_requests: list[tuple[str, str, dict[str, str]]] = [] - - async def handler(request: httpx.Request) -> httpx.Response: - if request.method == "DELETE": - return httpx.Response(200) - if request.method == "GET": - return httpx.Response(405) - body = json.loads(request.content.decode()) - method = body.get("method", "") - captured_requests.append((request.method, method, {k.lower(): v for k, v in request.headers.items()})) - if method == "initialize": - result = { - "protocolVersion": body["params"]["protocolVersion"], - "capabilities": {"tools": {}}, - "serverInfo": {"name": "mock-server", "version": "1.0.0"}, - } - return httpx.Response( - 200, - headers={"mcp-session-id": "test-session"}, - json={"jsonrpc": "2.0", "id": body["id"], "result": result}, - ) - if method == "tools/list": - result = { - "tools": [ - { - "name": "greet", - "description": "Says hello", - "inputSchema": {"type": "object", "properties": {"name": {"type": "string"}}}, - } - ] - } - return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": result}) - if method == "tools/call": - result = {"content": [{"type": "text", "text": "Hello!"}], "isError": False} - return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": result}) - if "id" in body: - # Any other request (e.g. ping) gets an empty result so the session doesn't block on it. - return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": {}}) - # Notifications (e.g. notifications/initialized) - return httpx.Response(202) - - http_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) - tool = MCPStreamableHTTPTool( - name="test", - url="http://127.0.0.1:8000/mcp", - load_prompts=False, - http_client=http_client, - header_provider=lambda kw: {"x-api-key": kw["api_key"]}, # failing scenario - # header_provider=lambda _: {"x-api-key": "connect-token"} # working scenario (no lambda) - ) - try: - async with Agent(client=client) as agent: - # placement of tools, matters as we defer the resolution until the agent calls `run` - await agent.run("Hello", tools=[tool], function_invocation_kwargs={"api_key": "connect-token"}) - finally: - await http_client.aclose() - - initialize_headers = [headers for _, method, headers in captured_requests if method == "initialize"] - assert len(initialize_headers) == 1 - assert initialize_headers[0].get("x-api-key") == "connect-token" - - -async def test_agent_context_manager_authenticates_connect_with_closure_provider( - client: SupportsChatGetResponse, -) -> None: - """A constructor-supplied MCP tool authenticates its eager handshake with no run involved. - - Pins that ``header_provider`` already covers construction-time credentials: entering the - agent context connects before any run exists, and the server rejects unauthenticated calls. - """ - import httpx - - captured_requests: list[tuple[str, dict[str, str]]] = [] - - async def handler(request: httpx.Request) -> httpx.Response: - if request.method == "DELETE": - return httpx.Response(200) - if request.method == "GET": - return httpx.Response(405) - if request.headers.get("x-api-key") != "constructor-token": - return httpx.Response(401) - body = json.loads(request.content.decode()) - method = body.get("method", "") - captured_requests.append((method, {k.lower(): v for k, v in request.headers.items()})) - if method == "initialize": - return httpx.Response( - 200, - headers={"mcp-session-id": "test-session"}, - json={ - "jsonrpc": "2.0", - "id": body["id"], - "result": { - "protocolVersion": body["params"]["protocolVersion"], - "capabilities": {"tools": {}}, - "serverInfo": {"name": "mock-server", "version": "1.0.0"}, - }, - }, - ) - if method == "tools/list": - return httpx.Response( - 200, - json={ - "jsonrpc": "2.0", - "id": body["id"], - "result": {"tools": [{"name": "greet", "inputSchema": {"type": "object", "properties": {}}}]}, - }, - ) - if "id" in body: - return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": {}}) - return httpx.Response(202) - - http_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) - # The credential is known at construction, so the provider closes over it and ignores kwargs. - tool = MCPStreamableHTTPTool( - name="test", - url="http://127.0.0.1:8000/mcp", - load_prompts=False, - http_client=http_client, - header_provider=lambda _kwargs: {"x-api-key": "constructor-token"}, - ) - try: - async with Agent(client=client, tools=[tool]): - assert tool.is_connected - finally: - await http_client.aclose() - - assert [method for method, _ in captured_requests].count("initialize") == 1 - assert all(headers.get("x-api-key") == "constructor-token" for _, headers in captured_requests) - - -async def test_constructor_supplied_mcp_tool_uses_run_credentials_on_lazy_connect( - client: SupportsChatGetResponse, -) -> None: - """A constructor-supplied MCP tool connected at first run authenticates with that run's kwargs. - - Without the agent context manager the handshake is deferred to ``run()``, so the run's - credentials are available and must reach ``header_provider``. - """ - import httpx - - captured_requests: list[tuple[str, dict[str, str]]] = [] - - async def handler(request: httpx.Request) -> httpx.Response: - if request.method == "DELETE": - return httpx.Response(200) - if request.method == "GET": - return httpx.Response(405) - if request.headers.get("x-api-key") != "run-token": - return httpx.Response(401) - body = json.loads(request.content.decode()) - method = body.get("method", "") - captured_requests.append((method, {k.lower(): v for k, v in request.headers.items()})) - if method == "initialize": - return httpx.Response( - 200, - headers={"mcp-session-id": "test-session"}, - json={ - "jsonrpc": "2.0", - "id": body["id"], - "result": { - "protocolVersion": body["params"]["protocolVersion"], - "capabilities": {"tools": {}}, - "serverInfo": {"name": "mock-server", "version": "1.0.0"}, - }, - }, - ) - if method == "tools/list": - return httpx.Response( - 200, - json={ - "jsonrpc": "2.0", - "id": body["id"], - "result": {"tools": [{"name": "greet", "inputSchema": {"type": "object", "properties": {}}}]}, - }, - ) - if "id" in body: - return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": {}}) - return httpx.Response(202) - - http_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) - tool = MCPStreamableHTTPTool( - name="test", - url="http://127.0.0.1:8000/mcp", - load_prompts=False, - http_client=http_client, - header_provider=lambda kw: {"x-api-key": kw["api_key"]}, - ) - agent = Agent(client=client, tools=[tool]) - try: - # No agent context manager, so the tool is still unconnected when the run starts. - assert not tool.is_connected - await agent.run("Hello", function_invocation_kwargs={"api_key": "run-token"}) - finally: - await tool.close() - await http_client.aclose() - - assert [method for method, _ in captured_requests].count("initialize") == 1 - assert all(headers.get("x-api-key") == "run-token" for _, headers in captured_requests) - - -async def test_mcp_streamable_http_tool_header_provider_applies_across_transport_tasks(): - """Regression test for #7161: header_provider headers must reach tools/call requests. - - The streamable HTTP transport sends requests from tasks spawned at connect time, - whose contexts never observe the ContextVar value set later inside call_tool. This - drives the real transport against an in-process mock server and asserts the - per-call Authorization header arrives on the tools/call HTTP request. - """ - import httpx - - captured_requests: list[tuple[str, str, dict[str, str]]] = [] - - async def handler(request: httpx.Request) -> httpx.Response: - if request.method == "DELETE": - return httpx.Response(200) - if request.method == "GET": - return httpx.Response(405) - body = json.loads(request.content.decode()) - method = body.get("method", "") - captured_requests.append((request.method, method, {k.lower(): v for k, v in request.headers.items()})) - if method == "initialize": - result = { - "protocolVersion": body["params"]["protocolVersion"], - "capabilities": {"tools": {}}, - "serverInfo": {"name": "mock-server", "version": "1.0.0"}, - } - return httpx.Response( - 200, - headers={"mcp-session-id": "test-session"}, - json={"jsonrpc": "2.0", "id": body["id"], "result": result}, - ) - if method == "tools/list": - result = { - "tools": [ - { - "name": "greet", - "description": "Says hello", - "inputSchema": {"type": "object", "properties": {"name": {"type": "string"}}}, - } - ] - } - return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": result}) - if method == "tools/call": - result = {"content": [{"type": "text", "text": "Hello!"}], "isError": False} - return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": result}) - if "id" in body: - # Any other request (e.g. ping) gets an empty result so the session doesn't block on it. - return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": {}}) - # Notifications (e.g. notifications/initialized) - return httpx.Response(202) - - http_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) - tool = MCPStreamableHTTPTool( - name="test", - url="http://127.0.0.1:8000/mcp", - load_prompts=False, - http_client=http_client, - header_provider=lambda kw: {"Authorization": f"Bearer {kw.get('api_key', '')}"}, - ) - try: - async with tool: - await tool.call_tool("greet", name="Alice", api_key="secret-token") - finally: - await http_client.aclose() - - call_headers = [headers for _, method, headers in captured_requests if method == "tools/call"] - assert len(call_headers) == 1 - assert call_headers[0].get("authorization") == "Bearer secret-token" +async def test_mcp_streamable_http_tool_header_provider_sets_contextvar(): + """Test that call_tool sets the contextvar with headers from header_provider.""" + from agent_framework._mcp import _mcp_call_headers -async def test_mcp_streamable_http_tool_header_provider_snapshot_restored_after_call(): - """Test that the instance-level header snapshot is set during a call and cleared after.""" - observed_snapshots: list[dict[str, str] | None] = [] + observed_headers: list[dict[str, str]] = [] original_call_tool = MCPTool.call_tool async def spy_call_tool(self, tool_name, **kwargs): - # Capture the snapshot value during the super call - observed_snapshots.append(self._active_call_headers) + # Capture the contextvar value during the super call + try: + call_header_context = _mcp_call_headers.get() + assert isinstance(call_header_context, tuple) + observed_headers.append(call_header_context[1]) + except LookupError: + observed_headers.append({}) return await original_call_tool(self, tool_name, **kwargs) class _TestServer(MCPStreamableHTTPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + session = Mock(spec=ClientSession) + sdk_client = _mock_sdk_client(session=session, protocol_version="2026-07-28") + sdk_client.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="greet", description="Says hello", - inputSchema={"type": "object", "properties": {"name": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"name": {"type": "string"}}}, ) ] ) ) - self.session.call_tool = AsyncMock( + sdk_client.call_tool = AsyncMock( return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) ) - self.session.send_ping = AsyncMock() + self._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) self.is_connected = True def get_mcp_client(self): # pyrefly: ignore[bad-override] @@ -8583,1377 +9121,1539 @@ def get_mcp_client(self): # pyrefly: ignore[bad-override] ) async with server: await server.load_tools() + with patch.object(MCPTool, "call_tool", spy_call_tool): await server.call_tool("greet", name="Alice", auth_token="bearer-xyz") - assert observed_snapshots == [{"X-Auth": "bearer-xyz"}] - assert server._active_call_headers is None - - -async def test_mcp_streamable_http_tool_header_provider_serializes_concurrent_calls(): - """Concurrent call_tool invocations on the same tool must not mix per-call headers. + assert len(observed_headers) == 1 + assert observed_headers[0] == {"X-Auth": "bearer-xyz"} - The framework executes parallel tool invocations concurrently, so a second call - must not overwrite the active header snapshot while the first call's requests - are still in flight (that would attach the wrong credentials). - """ - release = asyncio.Event() - in_call = asyncio.Event() - async def blocking_call_tool(tool_name, *, arguments=None, meta=None): - in_call.set() - await release.wait() - return types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) +async def test_mcp_streamable_http_tool_header_provider_contextvar_reset_after_call(): + """Test that the contextvar is properly reset after call_tool completes.""" + from agent_framework._mcp import _mcp_call_headers class _TestServer(MCPStreamableHTTPTool): - async def connect(self, *, reset: bool = False) -> None: - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] + session = Mock(spec=ClientSession) + sdk_client = _mock_sdk_client(session=session, protocol_version="2026-07-28") + sdk_client.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="greet", description="Says hello", - inputSchema={"type": "object", "properties": {"name": {"type": "string"}}}, + input_schema={"type": "object", "properties": {"name": {"type": "string"}}}, ) ] ) ) - self.session.call_tool = AsyncMock(side_effect=blocking_call_tool) - self.session.send_ping = AsyncMock() + sdk_client.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + ) + self._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) self.is_connected = True - async def _reconnect_for_identity_change(self) -> None: - await self.connect(reset=True) - def get_mcp_client(self): # pyrefly: ignore[bad-override] return None server = _TestServer( name="test", url="http://example.com/mcp", - header_provider=lambda kw: {"X-Auth": kw.get("auth_token", "")}, + header_provider=lambda kw: {"X-Token": kw.get("token", "")}, ) async with server: await server.load_tools() + await server.call_tool("greet", name="Alice", token="secret") - first = asyncio.create_task(server.call_tool("greet", name="A", auth_token="token-a")) - await in_call.wait() - assert server._active_call_headers == {"X-Auth": "token-a"} - - second = asyncio.create_task(server.call_tool("greet", name="B", auth_token="token-b")) - for _ in range(10): - await asyncio.sleep(0) - # The second call must be waiting on the first; its headers must not have - # replaced the snapshot the request hook reads for the in-flight call. - assert server._active_call_headers == {"X-Auth": "token-a"} - - release.set() - await asyncio.gather(first, second) - - assert server._active_call_headers is None - - -# endregion - - -# region: MCP long-running task (SEP-2663) tests - - -def _utc_now() -> Any: - from datetime import datetime, timezone - - return datetime.now(timezone.utc) - - -def _make_task_snapshot( - *, - task_id: str = "task-1", - status: str = "working", - status_message: str | None = None, - poll_interval_ms: int | None = None, -) -> types.GetTaskResult: - now = _utc_now() - return types.GetTaskResult( - taskId=task_id, - status=status, # type: ignore[arg-type] # ty: ignore[invalid-argument-type] - statusMessage=status_message, - createdAt=now, - lastUpdatedAt=now, - ttl=None, - pollInterval=poll_interval_ms, - ) - - -def _make_create_task_result(task_id: str = "task-1") -> types.CreateTaskResult: - now = _utc_now() - return types.CreateTaskResult( - task=types.Task( - taskId=task_id, - status="working", - statusMessage=None, - createdAt=now, - lastUpdatedAt=now, - ttl=None, - ) - ) - - -def _make_payload( - text: str = "done!", - is_error: bool = False, - structured_content: dict[str, Any] | None = None, - meta: dict[str, Any] | None = None, -) -> types.GetTaskPayloadResult: - payload: dict[str, Any] = { - "content": [{"type": "text", "text": text}], - "isError": is_error, - } - if structured_content is not None: - payload["structuredContent"] = structured_content - if meta is not None: - payload["_meta"] = meta - return types.GetTaskPayloadResult.model_validate(payload) - - -def _make_task_tool( - tool_name: str = "slow_op", - *, - task_support: str | None = "required", - task_options: Any = None, -) -> MCPTool: - from agent_framework import MCPTaskOptions - - tool = MCPTool( # type: ignore[abstract] # ty: ignore[call-non-callable] - name="lro", - task_options=task_options if task_options is not None else MCPTaskOptions(), - ) - tool.session = AsyncMock(spec=ClientSession) - if task_support is not None: - tool._tool_task_support_by_name[tool_name] = task_support - return tool - - -def _send_request_dispatcher(*responses_by_method: tuple[str, Any]) -> Any: - """Build a send_request side_effect that returns responses keyed by request method. - - Each tuple is ``(method_name, response_or_exception_or_callable)``. The dispatcher - advances a per-method queue on every call. A callable response is invoked with no - args so tests can raise exceptions deterministically. - """ - from collections import defaultdict - - queues: dict[str, list[Any]] = defaultdict(list) - for method, response in responses_by_method: - queues[method].append(response) - - async def _dispatch(request: Any, _result_type: Any, *_args: Any, **_kw: Any) -> Any: - method = getattr(request.root, "method", None) or getattr(request, "method", None) - queue = queues.get(method) # type: ignore[arg-type, call-overload] # pyrefly: ignore[bad-argument-type] - if not queue: - raise AssertionError(f"No mocked send_request response for method '{method}'.") - item = queue.pop(0) - if callable(item): - return item() - if isinstance(item, BaseException): - raise item - return item - - return _dispatch - - -async def test_task_options_defaults_are_sane() -> None: - from agent_framework import MCPTaskOptions - - opts = MCPTaskOptions() - assert opts.default_ttl is None - assert opts.cancel_remote_task_on_local_cancellation is True - - -async def test_task_options_rejects_non_positive_default_ttl() -> None: - from datetime import timedelta - - from agent_framework import MCPTaskOptions - - with pytest.raises(ValueError, match="positive"): - MCPTaskOptions(default_ttl=timedelta(seconds=-1)) - with pytest.raises(ValueError, match="positive"): - MCPTaskOptions(default_ttl=timedelta(0)) - - -async def test_load_tools_captures_task_support() -> None: - tool = MCPTool(name="lro") # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = AsyncMock() - tool.load_tools_flag = True - - page = Mock() - page.tools = [ - types.Tool( - name="slow_op", - description="slow", - inputSchema={"type": "object", "properties": {}}, - execution=types.ToolExecution(taskSupport="required"), - ), - types.Tool( - name="fast_op", - description="fast", - inputSchema={"type": "object", "properties": {}}, - ), - ] - page.nextCursor = None - tool.session.list_tools = AsyncMock(return_value=page) - - await tool.load_tools() - - assert tool._tool_task_support_by_name == {"slow_op": "required"} - - -async def test_call_tool_routes_required_through_task_lifecycle(monkeypatch: pytest.MonkeyPatch) -> None: - from agent_framework import _mcp as _mcp_module - - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) - - tool = _make_task_tool() - tool.parse_tool_results = lambda _: "custom task summary" - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=_send_request_dispatcher( - ("tools/call", _make_create_task_result()), - ("tasks/get", _make_task_snapshot(status="working")), - ("tasks/get", _make_task_snapshot(status="completed")), - ( - "tasks/result", - _make_payload( - "hello task", - structured_content={"widget": "task"}, - meta={"source": "completed-task"}, - ), - ), - ) - ) - - function_result = await _call_generated_mcp_tool(tool, "slow_op", x=1) + # After call_tool, the contextvar should be unset (reset to no value) + with pytest.raises(LookupError): + _mcp_call_headers.get() - assert function_result.result == "custom task summary" - assert function_result.items is not None - assert function_result.additional_properties[_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY]["structuredContent"] == { - "widget": "task" - } - assert "_meta" not in function_result.items[0].additional_properties - assert function_result.additional_properties["_meta"] == {"source": "completed-task"} - assert function_result.additional_properties[_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY]["_meta"] == { - "source": "completed-task" - } - # Plain session.call_tool must NOT be used for required tools. - tool.session.call_tool.assert_not_called() # type: ignore[union-attr] # ty: ignore[unresolved-attribute] +async def test_mcp_streamable_http_tool_without_header_provider(): + """Test that call_tool works normally when no header_provider is configured.""" -async def test_call_tool_routes_required_through_public_task_override() -> None: - class OverriddenTaskTool(MCPTool): - def __init__(self) -> None: - super().__init__(name="override") - self.override_called = False + class _TestServer(MCPStreamableHTTPTool): + async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] + session = Mock(spec=ClientSession) + sdk_client = _mock_sdk_client(session=session, protocol_version="2026-07-28") + sdk_client.list_tools = AsyncMock( + return_value=types.ListToolsResult( + tools=[ + types.Tool( + name="greet", + description="Says hello", + input_schema={"type": "object", "properties": {"name": {"type": "string"}}}, + ) + ] + ) + ) + sdk_client.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + ) + self._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) + self.is_connected = True - async def call_tool_as_task(self, tool_name: str, **kwargs: Any) -> str | list[Content]: - self.override_called = True - return await super().call_tool_as_task(tool_name, **kwargs) + def get_mcp_client(self): # pyrefly: ignore[bad-override] + return None - tool = OverriddenTaskTool() # type: ignore[abstract] # ty: ignore[call-non-callable] - tool.session = AsyncMock(spec=ClientSession) - tool._tool_task_support_by_name["slow_op"] = "required" - fallback_result = types.CallToolResult(content=[types.TextContent(type="text", text="fallback")]) - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - return_value=types.Result.model_validate(fallback_result.model_dump(by_alias=True, exclude_none=True)) + server = _TestServer( + name="test", + url="http://example.com/mcp", ) + async with server: + await server.load_tools() + await server.call_tool("greet", name="Alice") + connection = server._connection + assert connection is not None + sdk_client = connection.client + assert sdk_client is not None + cast(AsyncMock, sdk_client.call_tool).assert_awaited_once() - function_result = await _call_generated_mcp_tool(tool, "slow_op") + # Without header_provider, call_tool should delegate directly to MCPTool + assert server._header_provider is None - assert function_result.result == "fallback" - assert _MCP_TOOL_RESULT_HOST_PAYLOAD_KEY in function_result.additional_properties - assert tool.override_called is True +async def test_mcp_streamable_http_tool_header_provider_with_httpx_event_hook(): + """Test that the httpx event hook injects headers from the contextvar.""" + from agent_framework._mcp import MCP_DEFAULT_SSE_READ_TIMEOUT, MCP_DEFAULT_TIMEOUT, _mcp_call_headers -async def test_call_tool_as_task_fallback_preserves_custom_parser_host_payload() -> None: - """A legacy non-task response retains the Host payload after custom parsing.""" - tool = _make_task_tool() - tool.parse_tool_results = lambda _: "custom fallback summary" - fallback_result = types.CallToolResult( - content=[types.TextContent(type="text", text="fallback")], - structuredContent={"widget": "fallback"}, - _meta={"source": "fallback"}, - ) - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - return_value=types.Result.model_validate(fallback_result.model_dump(by_alias=True, exclude_none=True)) + tool = MCPStreamableHTTPTool( + name="test", + url="http://example.com/mcp", + header_provider=lambda kw: {"X-Custom": kw.get("custom", "")}, ) - function_result = await _call_generated_mcp_tool(tool, "slow_op") + try: + with patch("agent_framework._mcp.streamable_http_client"): + # Trigger get_mcp_client to set up the event hook + tool.get_mcp_client() - assert function_result.result == "custom fallback summary" - assert function_result.items is not None - assert function_result.additional_properties[_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY]["structuredContent"] == { - "widget": "fallback" - } - assert "_meta" not in function_result.items[0].additional_properties - assert function_result.additional_properties["_meta"] == {"source": "fallback"} - assert function_result.additional_properties[_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY]["_meta"] == {"source": "fallback"} + # The tool should have created an httpx client with the event hook + assert tool._httpx_client is not None + assert tool._httpx_client.follow_redirects is True + assert tool._httpx_client.timeout.connect == MCP_DEFAULT_TIMEOUT + assert tool._httpx_client.timeout.read == MCP_DEFAULT_SSE_READ_TIMEOUT + hooks = tool._httpx_client.event_hooks.get("request", []) + assert len(hooks) == 1, "Expected one request event hook" + # Simulate what happens during a call_tool: contextvar is set + token = _mcp_call_headers.set((tool._header_request_owner, {"X-Custom": "test-value"})) + try: + request = _request_for_mcp_tool(tool) + await hooks[0](request) + assert request.headers.get("X-Custom") == "test-value" + finally: + _mcp_call_headers.reset(token) + finally: + # Ensure any created httpx client is properly closed + if getattr(tool, "_httpx_client", None) is not None: + await tool._httpx_client.aclose() # type: ignore[union-attr] -@pytest.mark.parametrize("result_path", ["fallback", "completed"], ids=["task-fallback", "completed-task"]) -async def test_secure_mcp_task_results_cannot_relax_local_label(result_path: str) -> None: - from agent_framework.security import LabelTrackingFunctionMiddleware - tool = _make_task_tool() - result_meta = {"ifc": {"integrity": "trusted", "confidentiality": "public"}} - structured_content = {"widget": result_path} - if result_path == "fallback": - raw_result = types.CallToolResult( - content=[types.TextContent(type="text", text="fallback")], - structuredContent=structured_content, - _meta=result_meta, - ) - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - return_value=types.Result.model_validate(raw_result.model_dump(by_alias=True, exclude_none=True)) - ) - else: - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=_send_request_dispatcher( - ("tools/call", _make_create_task_result()), - ("tasks/get", _make_task_snapshot(status="completed")), - ( - "tasks/result", - _make_payload( - "completed", - structured_content=structured_content, - meta=result_meta, - ), - ), - ) - ) +async def test_mcp_streamable_http_tool_header_provider_injects_on_ambient_request(): + """Regression test for #7079: static header_provider must authenticate ambient requests. - function_result = await _call_generated_mcp_tool( - tool, - "slow_op", - middleware_pipeline=FunctionMiddlewarePipeline(LabelTrackingFunctionMiddleware(auto_hide_untrusted=True)), - host_payload_budget=_FunctionResultPayloadBudget(), - mcp_local_label=("untrusted", "private"), + The initialize handshake, load_tools/load_prompts discovery, and background pings run + outside call_tool, so the contextvar/snapshot are unset. A static header_provider should + still be invoked (with empty kwargs) so these requests carry auth headers. + """ + tool = MCPStreamableHTTPTool( + name="test", + url="http://example.com/mcp", + header_provider=lambda kw: {"Authorization": "******"}, ) - assert function_result.items is not None - assert len(function_result.items) == 1 - for item in function_result.items: - assert item.additional_properties["_variable_reference"] is True - assert item.additional_properties["security_label"]["integrity"] == "untrusted" - assert item.additional_properties["security_label"]["confidentiality"] == "private" - assert item.additional_properties["_meta"] == result_meta - assert function_result.additional_properties["_meta"] == result_meta - assert function_result.additional_properties[_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY]["structuredContent"] == ( - structured_content - ) - - -@pytest.mark.parametrize("result_path", ["fallback", "completed"], ids=["task-fallback", "completed-task"]) -async def test_task_parser_failure_preserves_complete_host_payload(result_path: str) -> None: - tool = _make_task_tool() - tool.parse_tool_results = _raise_result_parser - result_meta = {"source": result_path} - if result_path == "fallback": - raw_result = types.CallToolResult( - content=[types.TextContent(type="text", text="fallback")], - structuredContent={"widget": result_path}, - _meta=result_meta, - ) - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - return_value=types.Result.model_validate(raw_result.model_dump(by_alias=True, exclude_none=True)) - ) - else: - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=_send_request_dispatcher( - ("tools/call", _make_create_task_result()), - ("tasks/get", _make_task_snapshot(status="completed")), - ( - "tasks/result", - _make_payload( - "completed", - structured_content={"widget": result_path}, - meta=result_meta, - ), - ), - ) - ) - - function_result = await _call_generated_mcp_tool(tool, "slow_op") - - assert function_result.result == "Error: Function failed." - assert function_result.additional_properties["_meta"] == result_meta - assert function_result.additional_properties[_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY]["structuredContent"] == { - "widget": result_path - } - - -async def test_call_tool_as_task_default_ttl_propagates() -> None: - from datetime import timedelta - - from agent_framework import MCPTaskOptions - - tool = _make_task_tool(task_options=MCPTaskOptions(default_ttl=timedelta(minutes=7))) - - captured: list[Any] = [] - - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - captured.append(request) - method = request.root.method - if method == "tools/call": - return _make_create_task_result() - if method == "tasks/get": - return _make_task_snapshot(status="completed") - if method == "tasks/result": - return _make_payload("ok") - raise AssertionError(method) - - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - - await tool.call_tool("slow_op") - - create_req = captured[0] - assert create_req.root.method == "tools/call" - assert create_req.root.params.task is not None - assert create_req.root.params.task.ttl == 7 * 60 * 1000 - - -async def test_call_tool_as_task_sends_empty_task_metadata_when_ttl_none() -> None: - # Without a TTL we still mark the call as task-augmented (servers require - # the `task` field to route through the lifecycle). - tool = _make_task_tool() - - captured: list[Any] = [] - - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - captured.append(request) - method = request.root.method - if method == "tools/call": - return _make_create_task_result() - if method == "tasks/get": - return _make_task_snapshot(status="completed") - if method == "tasks/result": - return _make_payload("ok") - raise AssertionError(method) - - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - - await tool.call_tool("slow_op") - - create_req = captured[0] - assert create_req.root.method == "tools/call" - assert create_req.root.params.task is not None - assert create_req.root.params.task.ttl is None + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool.get_mcp_client() + assert tool._httpx_client is not None + hooks = tool._httpx_client.event_hooks.get("request", []) + assert len(hooks) == 1 -async def test_call_tool_skips_task_path_for_optional_and_forbidden() -> None: - for support in ("optional", "forbidden", None): - tool = _make_task_tool(task_support=support) - tool.session.call_tool = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="plain")]) - ) - tool.session.send_request = AsyncMock(side_effect=AssertionError("task path should not be used")) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + # No contextvar set and no active call snapshot: simulates the initialize handshake. + request = _request_for_mcp_tool(tool) + await hooks[0](request) + assert request.headers.get("Authorization") == "******" + finally: + if getattr(tool, "_httpx_client", None) is not None: + await tool._httpx_client.aclose() # type: ignore[union-attr] - result = await tool.call_tool("slow_op") - assert _mcp_result_to_text(result) == "plain" +async def test_mcp_streamable_http_tool_header_provider_ambient_request_tolerates_kwargs_provider(): + """A header_provider that requires per-call kwargs must not crash ambient requests. -async def test_call_tool_as_task_cancelled_status_raises() -> None: - tool = _make_task_tool() - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=_send_request_dispatcher( - ("tools/call", _make_create_task_result()), - ("tasks/get", _make_task_snapshot(status="cancelled", status_message="server stop")), - ) + Providers that index runtime kwargs (e.g. kw["mcp_api_key"]) which are absent at connect + time raise KeyError. The hook should swallow that specific error and proceed without headers + rather than failing the initialize handshake. + """ + tool = MCPStreamableHTTPTool( + name="test", + url="http://example.com/mcp", + header_provider=lambda kw: {"Authorization": f"Bearer {kw['mcp_api_key']}"}, ) - with pytest.raises(ToolExecutionException, match="cancelled.*server stop"): - await tool.call_tool("slow_op") + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool.get_mcp_client() + assert tool._httpx_client is not None + hooks = tool._httpx_client.event_hooks.get("request", []) + assert len(hooks) == 1 -async def test_call_tool_as_task_failed_status_raises() -> None: - tool = _make_task_tool() - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=_send_request_dispatcher( - ("tools/call", _make_create_task_result()), - ("tasks/get", _make_task_snapshot(status="failed", status_message="boom")), - ) - ) + # No kwargs available at connect time -> provider raises KeyError -> hook swallows it. + request = _request_for_mcp_tool(tool) + await hooks[0](request) + assert "Authorization" not in request.headers + finally: + if getattr(tool, "_httpx_client", None) is not None: + await tool._httpx_client.aclose() # type: ignore[union-attr] - with pytest.raises(ToolExecutionException, match="failed.*boom"): - await tool.call_tool("slow_op") +async def test_mcp_streamable_http_tool_header_provider_empty_active_call_skips_ambient_fallback(): + """Regression test: an active call that yields no headers must not trigger the ambient fallback. -async def test_call_tool_as_task_input_required_raises() -> None: - tool = _make_task_tool() - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=_send_request_dispatcher( - ("tools/call", _make_create_task_result()), - ("tasks/get", _make_task_snapshot(status="input_required", status_message="need more")), - ) - ) + When header_provider legitimately returns {} for a real call_tool invocation, the empty dict + is a valid "set" value. The hook must treat it as set-but-empty (leave the request unchanged) + rather than as "unset", which would re-invoke header_provider({}) mid-call and inject headers + the caller deliberately omitted. + """ + from agent_framework._mcp import _mcp_call_headers - with pytest.raises(ToolExecutionException, match="input_required.*need more"): - await tool.call_tool("slow_op") + call_count = 0 + def provider(kw: dict[str, Any]) -> dict[str, str]: + nonlocal call_count + call_count += 1 + # Non-empty for ambient ({}), empty for the active call below. + return {} if kw.get("suppress") else {"Authorization": "******"} -async def test_call_tool_as_task_payload_iserror_raises() -> None: - tool = _make_task_tool() - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=_send_request_dispatcher( - ("tools/call", _make_create_task_result()), - ("tasks/get", _make_task_snapshot(status="completed")), - ( - "tasks/result", - _make_payload( - "payload exploded", - is_error=True, - structured_content={"reason": "task failed"}, - meta={"source": "failed-task"}, - ), - ), - ) - ) + tool = MCPStreamableHTTPTool(name="test", url="http://example.com/mcp", header_provider=provider) - function_result = await _call_generated_mcp_tool(tool, "slow_op") + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool.get_mcp_client() - assert function_result.exception is not None - assert function_result.additional_properties["_meta"] == {"source": "failed-task"} - assert function_result.additional_properties[_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY]["structuredContent"] == { - "reason": "task failed" - } + assert tool._httpx_client is not None + hooks = tool._httpx_client.event_hooks.get("request", []) + assert len(hooks) == 1 + # Simulate an active call whose provider returned {} (both ContextVar and snapshot set). + token = _mcp_call_headers.set((tool._header_request_owner, {})) + tool._active_call_headers = {} + try: + call_count = 0 + request = _request_for_mcp_tool(tool) + await hooks[0](request) + assert "Authorization" not in request.headers + assert call_count == 0, "ambient fallback must not run during a set-but-empty call" + finally: + tool._active_call_headers = None + _mcp_call_headers.reset(token) + finally: + if getattr(tool, "_httpx_client", None) is not None: + await tool._httpx_client.aclose() # type: ignore[union-attr] -async def test_call_tool_as_task_malformed_payload_raises() -> None: - tool = _make_task_tool() - bad_payload = types.GetTaskPayloadResult.model_validate({"random": "stuff"}) - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=_send_request_dispatcher( - ("tools/call", _make_create_task_result(task_id="abc")), - ("tasks/get", _make_task_snapshot(task_id="abc", status="completed")), - ("tasks/result", bad_payload), - ) - ) - with pytest.raises(ToolExecutionException, match="task 'abc' result payload"): - await tool.call_tool("slow_op") +async def test_mcp_streamable_http_tool_header_provider_ambient_kwarg_error_is_benign(caplog): + """A kwargs-dependent provider that raises KeyError on ambient requests must not fail them. + Ambient requests (initialize/discovery plus recurring pings) call the provider with empty + kwargs, so a provider indexing a required per-call kwarg raises KeyError. That is tolerated: + the request proceeds without headers and only a DEBUG line is logged (no WARNING spam). + """ + import logging -async def test_call_tool_as_task_method_not_found_falls_back() -> None: - tool = _make_task_tool() - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=McpError(types.ErrorData(code=types.METHOD_NOT_FOUND, message="no tasks here")) - ) - tool.session.call_tool = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="fell back")]) + tool = MCPStreamableHTTPTool( + name="test", + url="http://example.com/mcp", + header_provider=lambda kw: {"Authorization": "Bearer " + kw["mcp_api_key"]}, ) - result = await tool.call_tool("slow_op") - - assert _mcp_result_to_text(result) == "fell back" - tool.session.call_tool.assert_awaited_once() # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool.get_mcp_client() + assert tool._httpx_client is not None + hooks = tool._httpx_client.event_hooks.get("request", []) + assert len(hooks) == 1 -async def test_call_tool_as_task_invalid_params_falls_back() -> None: - tool = _make_task_tool() - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=McpError(types.ErrorData(code=types.INVALID_PARAMS, message="unknown field")) - ) - tool.session.call_tool = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - return_value=types.CallToolResult(content=[types.TextContent(type="text", text="plain ok")]) - ) + with caplog.at_level(logging.DEBUG, logger="agent_framework._mcp"): + for _ in range(3): + request = _request_for_mcp_tool(tool) + await hooks[0](request) + assert "Authorization" not in request.headers - result = await tool.call_tool("slow_op") + # The benign kwargs case must not escalate to WARNING/ERROR. + assert not [r for r in caplog.records if r.levelno >= logging.WARNING] + finally: + if getattr(tool, "_httpx_client", None) is not None: + await tool._httpx_client.aclose() # type: ignore[union-attr] - assert _mcp_result_to_text(result) == "plain ok" +async def test_mcp_streamable_http_tool_header_provider_ambient_non_keyerror_propagates(): + """A genuine header_provider failure on an ambient request must surface, not be swallowed. -async def test_call_tool_as_task_legacy_calltoolresult_response_used_directly() -> None: - """Server may ignore augmentation and return CallToolResult; treat it as the result.""" - # Build a lenient Result whose extras match a CallToolResult shape. - legacy_payload = types.Result.model_validate({ - "content": [{"type": "text", "text": "legacy ok"}], - "isError": False, - }) + Only the missing-kwargs case (KeyError) is tolerated. Any other error - e.g. a token-refresh + failure or a provider bug - propagates so it is not silently converted into unauthenticated + traffic, matching the call_tool path which does not catch header_provider exceptions. + """ - tool = _make_task_tool() - tool.session.send_request = AsyncMock(return_value=legacy_payload) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + class TokenRefreshError(RuntimeError): + pass - result = await tool.call_tool("slow_op") + def failing_provider(kw: dict[str, Any]) -> dict[str, str]: + raise TokenRefreshError("token endpoint unreachable") - assert _mcp_result_to_text(result) == "legacy ok" - # Polling must not occur: a single tools/call was enough. - assert tool.session.send_request.call_count == 1 # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + tool = MCPStreamableHTTPTool(name="test", url="http://example.com/mcp", header_provider=failing_provider) + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool.get_mcp_client() -async def test_call_tool_as_task_poll_interval_is_clamped(monkeypatch: pytest.MonkeyPatch) -> None: - from datetime import timedelta as _td + assert tool._httpx_client is not None + hooks = tool._httpx_client.event_hooks.get("request", []) + assert len(hooks) == 1 - from agent_framework import _mcp as _mcp_module + with pytest.raises(TokenRefreshError): + await hooks[0](_request_for_mcp_tool(tool)) + finally: + if getattr(tool, "_httpx_client", None) is not None: + await tool._httpx_client.aclose() # type: ignore[union-attr] - # Stub asyncio.sleep so we can capture delays without actually sleeping. - delays: list[float] = [] - async def fake_sleep(delay: float) -> None: - delays.append(delay) +async def test_mcp_streamable_http_tool_header_provider_skips_cross_origin_redirect(): + """The request hook must not re-add caller headers after a cross-origin redirect.""" + import httpx2 as httpx - monkeypatch.setattr(_mcp_module.asyncio, "sleep", fake_sleep) + from agent_framework._mcp import _mcp_call_headers - tool = _make_task_tool() - tool.session.send_request = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=_send_request_dispatcher( - ("tools/call", _make_create_task_result()), - ("tasks/get", _make_task_snapshot(status="working", poll_interval_ms=50)), # below 500ms min - ("tasks/get", _make_task_snapshot(status="working", poll_interval_ms=10_000)), # above 5s max - ("tasks/get", _make_task_snapshot(status="working", poll_interval_ms=None)), # default to min - ("tasks/get", _make_task_snapshot(status="working", poll_interval_ms=0)), # invalid -> min - ("tasks/get", _make_task_snapshot(status="working", poll_interval_ms=2_000)), # in-band - ("tasks/get", _make_task_snapshot(status="completed")), - ("tasks/result", _make_payload("ok")), - ) + tool = MCPStreamableHTTPTool( + name="test", + url="http://example.com/mcp", + header_provider=lambda kw: { + "Authorization": f"Bearer {kw.get('token', '')}", + "X-API-Key": kw.get("api_key", ""), + }, ) - await tool.call_tool("slow_op") - - expected = [ - _td(milliseconds=500).total_seconds(), # clamp up - _td(seconds=5).total_seconds(), # clamp down - _td(milliseconds=500).total_seconds(), # missing -> min - _td(milliseconds=500).total_seconds(), # zero -> min - _td(milliseconds=2_000).total_seconds(), - ] - assert delays == expected + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool.get_mcp_client() + assert tool._httpx_client is not None + hooks = tool._httpx_client.event_hooks.get("request", []) + assert len(hooks) == 1 -async def test_call_tool_as_task_local_cancellation_fires_remote_cancel( - monkeypatch: pytest.MonkeyPatch, -) -> None: - from agent_framework import _mcp as _mcp_module + token = _mcp_call_headers.set(( + tool._header_request_owner, + {"Authorization": "Bearer secret", "X-API-Key": "api-secret"}, + )) + try: + same_origin = _request_for_mcp_tool(tool, "http://example.com/redirected") + await hooks[0](same_origin) + assert same_origin.headers.get("Authorization") == "Bearer secret" + assert same_origin.headers.get("X-API-Key") == "api-secret" - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) + cross_origin = httpx.Request( + "POST", + "http://attacker.example/capture", + headers=same_origin.headers, + extensions=same_origin.extensions, + ) + await hooks[0](cross_origin) + assert "Authorization" not in cross_origin.headers + assert "X-API-Key" not in cross_origin.headers + finally: + _mcp_call_headers.reset(token) + finally: + if getattr(tool, "_httpx_client", None) is not None: + await tool._httpx_client.aclose() # type: ignore[union-attr] - tool = _make_task_tool() - cancel_seen = asyncio.Event() - create_seen = asyncio.Event() +async def test_mcp_streamable_http_tool_keeps_bound_headers_on_same_origin_redirect(): + """A redirected request must retain the header set bound to its session.""" + import httpx2 as httpx - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - method = request.root.method - if method == "tools/call": - create_seen.set() - return _make_create_task_result() - if method == "tasks/get": - await asyncio.sleep(0) - return _make_task_snapshot(status="working") - if method == "tasks/cancel": - cancel_seen.set() - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) - - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - - task = asyncio.create_task(tool.call_tool("slow_op")) - await asyncio.wait_for(create_seen.wait(), timeout=1.0) - # Let polling iterate a few times. - await asyncio.sleep(0.02) - task.cancel() - with pytest.raises(asyncio.CancelledError): - await task - - # Wait for the fire-and-forget cancel to complete. - await asyncio.wait_for(cancel_seen.wait(), timeout=1.0) - # Drain any tracked background tasks. - pending = list(tool._pending_reload_tasks) - if pending: - await asyncio.gather(*pending, return_exceptions=True) + provider_headers = {"X-Previous": "old"} + tool = MCPStreamableHTTPTool( + name="test", + url="http://example.com/mcp", + header_provider=lambda _kw: provider_headers, + ) + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool.get_mcp_client() -async def test_call_tool_as_task_cancellation_suppressed_when_disabled( - monkeypatch: pytest.MonkeyPatch, -) -> None: - from agent_framework import MCPTaskOptions - from agent_framework import _mcp as _mcp_module + assert tool._httpx_client is not None + hooks = tool._httpx_client.event_hooks.get("request", []) + assert len(hooks) == 1 - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) + initial = _request_for_mcp_tool(tool, "http://example.com/start") + await hooks[0](initial) + assert initial.headers.get("X-Previous") == "old" - tool = _make_task_tool( - task_options=MCPTaskOptions(cancel_remote_task_on_local_cancellation=False), - ) + provider_headers = {"X-Current": "new"} + same_origin_redirect = httpx.Request( + "POST", + "http://example.com/redirected", + headers=initial.headers, + extensions=initial.extensions, + ) + await hooks[0](same_origin_redirect) + assert same_origin_redirect.headers.get("X-Previous") == "old" + assert "X-Current" not in same_origin_redirect.headers - cancel_called = False - create_seen = asyncio.Event() + cross_origin_redirect = httpx.Request( + "POST", + "http://other.example/redirected", + headers=same_origin_redirect.headers, + extensions=same_origin_redirect.extensions, + ) + await hooks[0](cross_origin_redirect) + assert "X-Previous" not in cross_origin_redirect.headers + assert "X-Current" not in cross_origin_redirect.headers + finally: + if getattr(tool, "_httpx_client", None) is not None: + await tool._httpx_client.aclose() # type: ignore[union-attr] - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method - if method == "tools/call": - create_seen.set() - return _make_create_task_result() - if method == "tasks/get": - await asyncio.sleep(0) - return _make_task_snapshot(status="working") - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] +@pytest.mark.parametrize("use_header_provider", [False, True]) +async def test_mcp_streamable_http_tool_header_provider_with_user_httpx_client(use_header_provider: bool): + """Supplied clients preserve configuration, cookie persistence, and ownership.""" + import httpx2 as httpx - task = asyncio.create_task(tool.call_tool("slow_op")) - await asyncio.wait_for(create_seen.wait(), timeout=1.0) - await asyncio.sleep(0.02) - task.cancel() - with pytest.raises(asyncio.CancelledError): - await task + from agent_framework._mcp import _mcp_call_headers - # Let any (incorrect) background work settle, then verify cancel was NOT sent. - await asyncio.sleep(0.02) - assert cancel_called is False + def handle(request: httpx.Request) -> httpx.Response: + assert request.headers["X-Base"] == "static" + assert request.headers["Authorization"].startswith("Basic ") + assert request.headers["Cookie"] == "caller_session=kept" + return httpx.Response(200, headers={"Set-Cookie": "response_session=retained; Path=/"}) + auth = httpx.BasicAuth("caller", "test-password") + async with httpx.AsyncClient( + transport=httpx.MockTransport(handle), + headers={"X-Base": "static"}, + cookies={"caller_session": "kept"}, + auth=auth, + timeout=17.0, + ) as user_client: + tool = MCPStreamableHTTPTool( + name="test", + url="http://example.com/mcp", + http_client=user_client, + header_provider=(lambda kw: {"X-Dynamic": kw.get("dynamic", "")}) if use_header_provider else None, + ) + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool.get_mcp_client() + assert tool._httpx_client is user_client + hooks = user_client.event_hooks["request"] + assert len(hooks) == int(use_header_provider) + if use_header_provider: + token = _mcp_call_headers.set((tool._header_request_owner, {"X-Dynamic": "per-request"})) + try: + request = _request_for_mcp_tool(tool) + await hooks[0](request) + assert request.headers.get("X-Dynamic") == "per-request" + finally: + _mcp_call_headers.reset(token) + finally: + await tool.close() + assert not user_client.is_closed + assert user_client.auth is auth + assert user_client.timeout == httpx.Timeout(17.0) + assert not user_client.event_hooks["request"] + await user_client.get("http://example.com/unrelated") + assert user_client.cookies["caller_session"] == "kept" + assert user_client.cookies["response_session"] == "retained" -async def test_call_tool_as_task_reconnects_during_poll(monkeypatch: pytest.MonkeyPatch) -> None: - from anyio import ClosedResourceError - from agent_framework import _mcp as _mcp_module +async def test_mcp_streamable_http_tool_header_provider_isolated_on_shared_httpx_client(): + """Each MCP transport must use its own headers when sharing an httpx client.""" + import httpx2 as httpx - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) + captured_headers: list[dict[str, str]] = [] - tool = _make_task_tool() + async def handler(request: httpx.Request) -> httpx.Response: + captured_headers.append({key.lower(): value for key, value in request.headers.items()}) + return httpx.Response(200) - poll_calls = 0 + user_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) + tool_a = MCPStreamableHTTPTool( + name="a", + url="http://example.com/mcp", + http_client=user_client, + header_provider=lambda _kw: {"Authorization": "Bearer A", "X-Principal-A": "present"}, + ) + tool_b = MCPStreamableHTTPTool( + name="b", + url="http://example.com/mcp", + http_client=user_client, + header_provider=lambda _kw: {"Authorization": "Bearer B", "X-Principal-B": "present"}, + ) + tool_without_provider = MCPStreamableHTTPTool( + name="anonymous", + url="http://example.com/mcp", + http_client=user_client, + ) - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal poll_calls - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="abc") - if method == "tasks/get": - poll_calls += 1 - assert request.root.params.taskId == "abc" - if poll_calls == 1: - raise ClosedResourceError - return _make_task_snapshot(task_id="abc", status="completed") - if method == "tasks/result": - return _make_payload("recovered") - raise AssertionError(method) + try: + with patch("agent_framework._mcp.streamable_http_client") as mock_transport: + tool_a.get_mcp_client() + client_a = mock_transport.call_args.kwargs["http_client"] + tool_b.get_mcp_client() + client_b = mock_transport.call_args.kwargs["http_client"] + tool_without_provider.get_mcp_client() + client_without_provider = mock_transport.call_args.kwargs["http_client"] - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + for client in (client_a, client_b, client_without_provider, client_a): + async with client.stream("POST", "http://example.com/mcp"): + pass - reconnect_calls = 0 + assert captured_headers[0].get("authorization") == "Bearer A" + assert captured_headers[0].get("x-principal-a") == "present" + assert "x-principal-b" not in captured_headers[0] + assert captured_headers[1].get("authorization") == "Bearer B" + assert captured_headers[1].get("x-principal-b") == "present" + assert "x-principal-a" not in captured_headers[1] + assert "authorization" not in captured_headers[2] + assert "x-principal-a" not in captured_headers[2] + assert "x-principal-b" not in captured_headers[2] + assert captured_headers[3].get("authorization") == "Bearer A" + assert captured_headers[3].get("x-principal-a") == "present" + assert "x-principal-b" not in captured_headers[3] + finally: + await user_client.aclose() - async def fake_connect(reset: bool = False) -> None: - nonlocal reconnect_calls - reconnect_calls += 1 - assert reset is True - with patch.object(MCPTool, "connect", side_effect=fake_connect): - result = await tool.call_tool("slow_op") +async def test_mcp_streamable_http_tool_removes_header_hook_on_close(): + """Closing one tool must remove only its hook, and reconnecting must restore it.""" + import httpx2 as httpx - assert _mcp_result_to_text(result) == "recovered" - assert reconnect_calls == 1 - # Critically, tools/call must NOT be re-issued after task_id is known. - assert ( - sum( - 1 # type: ignore[misc] - for c in tool.session.send_request.await_args_list # type: ignore[union-attr] # ty: ignore[unresolved-attribute] - if c.args[0].root.method == "tools/call" - ) - == 1 + user_client = httpx.AsyncClient() + tool_a = MCPStreamableHTTPTool( + name="a", + url="http://example.com/mcp", + http_client=user_client, + header_provider=lambda _kw: {"Authorization": "Bearer A"}, + ) + tool_b = MCPStreamableHTTPTool( + name="b", + url="http://example.com/mcp", + http_client=user_client, + header_provider=lambda _kw: {"Authorization": "Bearer B"}, ) + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool_a.get_mcp_client() + tool_b.get_mcp_client() + assert len(user_client.event_hooks["request"]) == 2 -async def test_call_tool_as_task_second_disconnect_raises_connection_lost( - monkeypatch: pytest.MonkeyPatch, -) -> None: - from anyio import ClosedResourceError - - from agent_framework import _mcp as _mcp_module + await tool_a.close() + assert user_client.event_hooks["request"] == [tool_b._inject_headers_hook] - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) + # Reconnecting after close re-attaches exactly one hook for tool A. + with patch("agent_framework._mcp.streamable_http_client"): + tool_a.get_mcp_client() + tool_a.get_mcp_client() + assert user_client.event_hooks["request"].count(tool_a._inject_headers_hook) == 1 + assert len(user_client.event_hooks["request"]) == 2 + finally: + await user_client.aclose() - tool = _make_task_tool() - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="abc") - if method == "tasks/get": - raise ClosedResourceError - raise AssertionError(method) +async def test_mcp_streamable_http_tool_removes_hook_without_mutating_active_hook_list(): + """Closing one tool must not disrupt an in-progress iteration over shared hooks.""" + import httpx2 as httpx - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + from agent_framework._mcp import _MCP_INJECTED_HEADER_KEYS_EXTENSION - with ( - patch.object(MCPTool, "connect", new=AsyncMock(return_value=None)), - pytest.raises(ToolExecutionException, match="task state unknown"), - ): - await tool.call_tool("slow_op") + captured_headers: list[httpx.Headers] = [] + async def handler(request: httpx.Request) -> httpx.Response: + captured_headers.append(request.headers) + return httpx.Response(200) -async def test_call_tool_as_task_create_disconnect_does_not_retry() -> None: - """A connection loss during the augmented tools/call must NOT retry. + user_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) + tool_a = MCPStreamableHTTPTool( + name="a", + url="http://example.com/mcp", + http_client=user_client, + header_provider=lambda _kw: {"Authorization": "Bearer token-a"}, + ) + tool_b = MCPStreamableHTTPTool( + name="b", + url="http://example.com/mcp", + http_client=user_client, + header_provider=lambda _kw: {"X-API-Key": "current"}, + ) + hook_started = asyncio.Event() + allow_hook = asyncio.Event() - Retrying could spawn a duplicate long-running task on the server, because the - first request may have been accepted before the response was lost. - """ - from anyio import ClosedResourceError + async def delayed_hook(_request: httpx.Request) -> None: + hook_started.set() + await allow_hook.wait() - tool = _make_task_tool() + send_task: asyncio.Task[httpx.Response] | None = None + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool_a.get_mcp_client() + tool_b.get_mcp_client() + user_client.event_hooks["request"].insert(1, delayed_hook) - send_calls = 0 + request = httpx.Request( + "POST", + "http://other.example/redirected", + headers={"X-API-Key": "previous"}, + extensions={ + _MCP_HEADER_OWNER_EXTENSION: tool_b._header_request_owner, + _MCP_INJECTED_HEADER_KEYS_EXTENSION: ("X-API-Key",), + }, + ) + send_task = asyncio.create_task(user_client.send(request)) + await hook_started.wait() - async def fake_send(_request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal send_calls - send_calls += 1 - raise ClosedResourceError + await tool_a.close() + allow_hook.set() + await send_task - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + assert len(captured_headers) == 1 + assert "X-API-Key" not in captured_headers[0] + finally: + allow_hook.set() + if send_task is not None: + await send_task + await user_client.aclose() - reconnect_mock = AsyncMock(return_value=None) - with ( - patch.object(MCPTool, "connect", new=reconnect_mock), - pytest.raises(ToolExecutionException, match="task state unknown"), - ): - await tool.call_tool("slow_op") - # Exactly one tools/call was issued — the server-side task state is unknown, - # so retry is unsafe and must be skipped. - assert send_calls == 1 - reconnect_mock.assert_not_awaited() +async def test_mcp_streamable_http_tool_keeps_header_hook_until_cancelled_close_finishes(): + """Caller cancellation must not remove the hook while lifecycle teardown continues.""" + import httpx2 as httpx + user_client = httpx.AsyncClient() + tool = MCPStreamableHTTPTool( + name="test", + url="http://example.com/mcp", + http_client=user_client, + header_provider=lambda _kw: {"Authorization": "Bearer token"}, + ) + close_started = asyncio.Event() + allow_close = asyncio.Event() + # Recorded rather than asserted here: an assertion raised on the lifecycle owner task + # is swallowed by its error handling, so it would pass even when the hook is detached. + hook_attached_during_teardown: list[bool] = [] -async def test_fetch_task_result_reconnects_during_fetch() -> None: - from anyio import ClosedResourceError + async def delayed_close() -> None: + close_started.set() + await allow_close.wait() + hook_attached_during_teardown.append(tool._inject_headers_hook in user_client.event_hooks["request"]) - tool = _make_task_tool() + try: + with patch("agent_framework._mcp.streamable_http_client"): + tool.get_mcp_client() + assert tool._inject_headers_hook in user_client.event_hooks["request"] - fetch_calls = 0 + with patch.object(MCPTool, "_close_on_owner", side_effect=delayed_close): + close_task = asyncio.create_task(tool.close()) + await close_started.wait() + owner_task = tool._lifecycle_owner_task + assert owner_task is not None - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal fetch_calls - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="r1") - if method == "tasks/get": - return _make_task_snapshot(task_id="r1", status="completed") - if method == "tasks/result": - fetch_calls += 1 - if fetch_calls == 1: - raise ClosedResourceError - return _make_payload("fetched after reconnect") - raise AssertionError(method) + close_task.cancel() + with pytest.raises(asyncio.CancelledError): + await close_task + assert tool._inject_headers_hook in user_client.event_hooks["request"] - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + allow_close.set() + await owner_task - reconnect_calls = 0 + assert hook_attached_during_teardown == [True] + assert tool._inject_headers_hook not in user_client.event_hooks["request"] + finally: + allow_close.set() + owner_task = tool._lifecycle_owner_task + if owner_task is not None: + await owner_task + await user_client.aclose() - async def fake_connect(reset: bool = False) -> None: - nonlocal reconnect_calls - reconnect_calls += 1 - assert reset is True - with patch.object(MCPTool, "connect", side_effect=fake_connect): - result = await tool.call_tool("slow_op") +async def test_mcp_header_scoped_client_tags_send_requests(): + """The transport wrapper must identify requests sent through AsyncClient.send.""" + import httpx2 as httpx - assert _mcp_result_to_text(result) == "fetched after reconnect" - assert reconnect_calls == 1 - assert fetch_calls == 2 + from agent_framework._mcp import _MCP_HEADER_OWNER_EXTENSION, _MCPHeaderScopedClient + owner = object() + observed_owners: list[object | None] = [] -@pytest.mark.parametrize("enable_sensitive_data", [True, False], indirect=True) -async def test_fetch_task_result_second_disconnect_raises_task_state_unknown_and_cancels( - span_exporter: Any, - enable_sensitive_data: bool, - caplog: pytest.LogCaptureFixture, -) -> None: - private_error_detail = "founder-secret-token" - tool = _make_task_tool() + async def handle(request: httpx.Request) -> httpx.Response: + observed_owners.append(request.extensions.get(_MCP_HEADER_OWNER_EXTENSION)) + return httpx.Response(200) - cancel_called = False + async with httpx.AsyncClient(transport=httpx.MockTransport(handle)) as user_client: + wrapper = _MCPHeaderScopedClient(user_client, owner) + request = user_client.build_request("POST", "http://example.com/mcp") - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="r2") - if method == "tasks/get": - return _make_task_snapshot(task_id="r2", status="completed") - if method == "tasks/result": - raise McpError( - types.ErrorData( - code=types.INTERNAL_ERROR, - message=f"session terminated: {private_error_detail}", - ) - ) - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) + response = await wrapper.send(request) - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + assert response.status_code == 200 + assert observed_owners == [owner] - with ( - patch.object(MCPTool, "connect", new=AsyncMock(return_value=None)), - caplog.at_level(logging.DEBUG, logger="agent_framework"), - pytest.raises(ToolExecutionException, match="task state unknown") as exc_info, - ): - await tool.call_tool("slow_op") - from agent_framework import _mcp as _mcp_module +async def test_mcp_header_scoped_client_delegates_unwrapped_attributes(): + """The transport wrapper must stay a drop-in for the caller's httpx client.""" + import httpx2 as httpx - assert isinstance(exc_info.value, _mcp_module._MCPTaskAbandoned) - assert private_error_detail in str(exc_info.value.args[1]) - assert (private_error_detail in caplog.text) is enable_sensitive_data + from agent_framework._mcp import _MCPHeaderScopedClient - # Drain the fire-and-forget cancel so the assertion is deterministic. - pending = list(tool._pending_reload_tasks) - if pending: - await asyncio.gather(*pending, return_exceptions=True) - assert cancel_called is True + user_client = httpx.AsyncClient(headers={"X-Base": "static"}, follow_redirects=True) + try: + wrapper = _MCPHeaderScopedClient(user_client, object()) + assert wrapper.headers["X-Base"] == "static" + assert wrapper.follow_redirects is True + assert wrapper.build_request("POST", "http://example.com/mcp").method == "POST" + finally: + await user_client.aclose() -async def test_call_tool_as_task_create_unparseable_success_raises() -> None: - """An unparseable success-shaped response must NOT silently retry tools/call.""" - # Result with neither task.taskId nor a valid CallToolResult shape. - unparseable = types.Result.model_validate({"foo": "bar"}) +async def test_mcp_streamable_http_tool_header_provider_via_invoke_with_context(): + """Test that header_provider receives kwargs via FunctionTool.invoke with FunctionInvocationContext. - tool = _make_task_tool() - tool.session.send_request = AsyncMock(return_value=unparseable) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - tool.session.call_tool = AsyncMock(return_value=types.CallToolResult(content=[])) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + This exercises the full pipeline: FunctionInvocationContext.kwargs -> FunctionTool.invoke + -> MCPStreamableHTTPTool.call_tool -> header_provider. + """ + from agent_framework._mcp import _mcp_call_headers - with pytest.raises(ToolExecutionException, match="unparseable response"): - await tool.call_tool("slow_op") + observed_headers: list[dict[str, str]] = [] + original_call_tool = MCPStreamableHTTPTool.call_tool - # Critically: no plain tools/call fallback (would risk double execution). - tool.session.call_tool.assert_not_called() # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + async def spy_call_tool(self, tool_name, **kwargs): + # Capture the contextvar value set by call_tool before delegating + result = await original_call_tool(self, tool_name, **kwargs) + try: + call_header_context = _mcp_call_headers.get() + assert isinstance(call_header_context, tuple) + observed_headers.append(call_header_context[1]) + except LookupError: + observed_headers.append({}) + return result + class _TestServer(MCPStreamableHTTPTool): + async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] + session = Mock(spec=ClientSession) + sdk_client = _mock_sdk_client(session=session, protocol_version="2026-07-28") + sdk_client.list_tools = AsyncMock( + return_value=types.ListToolsResult( + tools=[ + types.Tool( + name="greet", + description="Says hello", + input_schema={ + "type": "object", + "properties": {"name": {"type": "string"}}, + "required": ["name"], + }, + ) + ] + ) + ) + sdk_client.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + ) + self._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) + self.is_connected = True -async def test_call_tool_as_task_max_wait_exceeded_raises_and_cancels(monkeypatch: pytest.MonkeyPatch) -> None: - from agent_framework import MCPTaskOptions - from agent_framework import _mcp as _mcp_module + def get_mcp_client(self): # pyrefly: ignore[bad-override] + return None - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) + provider_received: list[dict] = [] - tool = _make_task_tool(task_options=MCPTaskOptions(max_task_wait=timedelta(milliseconds=50))) + def provider(kwargs): + provider_received.append(dict(kwargs)) + return {"X-Some-Token": kwargs.get("some_token", "")} - cancel_called = False + server = _TestServer( + name="test", + url="http://example.com/mcp", + header_provider=provider, + ) + async with server: + await server.load_tools() + func = server.functions[0] - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="mw") - if method == "tasks/get": - return _make_task_snapshot(task_id="mw", status="working") - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) + with patch.object(MCPStreamableHTTPTool, "call_tool", spy_call_tool): + result = await _auto_invoke_function( + Content.from_function_call( + call_id="call-greet", + name=func.name, + arguments={"name": "Alice"}, + ), + custom_args={"some_token": "my-secret"}, + config=normalize_function_invocation_configuration(None), + tool_map={func.name: func}, + host_payload_budget=_FunctionResultPayloadBudget(), + ) - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + # Verify the invoke produced a result + assert result.items is not None + assert result.items[0].text == "Hello!" + assert _MCP_TOOL_RESULT_HOST_PAYLOAD_KEY in result.additional_properties + assert all(_MCP_TOOL_RESULT_HOST_PAYLOAD_KEY not in item.additional_properties for item in result.items) - with pytest.raises(ToolExecutionException, match="exceeded max_task_wait"): - await tool.call_tool("slow_op") + # Verify header_provider was called with the runtime kwargs + assert len(provider_received) == 1 + assert provider_received[0]["some_token"] == "my-secret" - pending = list(tool._pending_reload_tasks) - if pending: - await asyncio.gather(*pending, return_exceptions=True) - assert cancel_called is True + # Verify Client.call_tool was called with the tool arguments (not the runtime kwargs). + connection = server._connection + assert connection is not None + sdk_client = connection.client + assert sdk_client is not None + call_tool = cast(AsyncMock, sdk_client.call_tool) + call_tool.assert_awaited_once() + call_args = call_tool.call_args + assert call_args.kwargs.get("arguments", {}).get("name") == "Alice" -async def test_call_tool_as_task_max_wait_cancels_even_when_local_cancel_option_disabled( - monkeypatch: pytest.MonkeyPatch, +async def test_agent_run_supplies_mcp_connect_headers( + client: SupportsChatGetResponse, ) -> None: - """Locks contract: max_task_wait abandonment ignores the local-cancel option.""" - from agent_framework import MCPTaskOptions - from agent_framework import _mcp as _mcp_module - - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) + """Run-time credentials should authenticate implicit MCP initialization. - tool = _make_task_tool( - task_options=MCPTaskOptions( - cancel_remote_task_on_local_cancellation=False, - max_task_wait=timedelta(milliseconds=50), - ), - ) + The agent receives function_invocation_kwargs before connecting the MCP tool + supplied to run(). This test exercises the real MCP transport against an + in-process mock HTTP endpoint and asserts that header_provider can use those + credentials on the initialize request, before any tool invocation occurs. + """ + import httpx2 as httpx - cancel_called = False + captured_requests: list[tuple[str, str, dict[str, str]]] = [] - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method + async def handler(request: httpx.Request) -> httpx.Response: + if request.method == "DELETE": + return httpx.Response(200) + if request.method == "GET": + return httpx.Response(405) + body = json.loads(request.content.decode()) + method = body.get("method", "") + captured_requests.append((request.method, method, {k.lower(): v for k, v in request.headers.items()})) + if method == "initialize": + result = { + "protocolVersion": body["params"]["protocolVersion"], + "capabilities": {"tools": {}}, + "serverInfo": {"name": "mock-server", "version": "1.0.0"}, + } + return httpx.Response( + 200, + headers={"mcp-session-id": "test-session"}, + json={"jsonrpc": "2.0", "id": body["id"], "result": result}, + ) + if method == "tools/list": + result = { + "tools": [ + { + "name": "greet", + "description": "Says hello", + "inputSchema": {"type": "object", "properties": {"name": {"type": "string"}}}, + } + ] + } + return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": result}) if method == "tools/call": - return _make_create_task_result(task_id="mw2") - if method == "tasks/get": - return _make_task_snapshot(task_id="mw2", status="working") - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) - - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - - with pytest.raises(ToolExecutionException, match="exceeded max_task_wait"): - await tool.call_tool("slow_op") + result = {"content": [{"type": "text", "text": "Hello!"}], "isError": False} + return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": result}) + if "id" in body: + # Any other request (e.g. ping) gets an empty result so the session doesn't block on it. + return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": {}}) + # Notifications (e.g. notifications/initialized) + return httpx.Response(202) - pending = list(tool._pending_reload_tasks) - if pending: - await asyncio.gather(*pending, return_exceptions=True) - assert cancel_called is True + http_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) + tool = MCPStreamableHTTPTool( + name="test", + url="http://127.0.0.1:8000/mcp", + load_prompts=False, + http_client=http_client, + header_provider=lambda kw: {"x-api-key": kw["api_key"]}, # failing scenario + # header_provider=lambda _: {"x-api-key": "connect-token"} # working scenario (no lambda) + ) + try: + async with Agent(client=client) as agent: + # placement of tools, matters as we defer the resolution until the agent calls `run` + await agent.run("Hello", tools=[tool], function_invocation_kwargs={"api_key": "connect-token"}) + finally: + await http_client.aclose() + initialize_headers = [headers for _, method, headers in captured_requests if method == "initialize"] + assert len(initialize_headers) == 1 + assert initialize_headers[0].get("x-api-key") == "connect-token" -async def test_call_tool_as_task_poll_transient_request_timeout_keeps_polling( - monkeypatch: pytest.MonkeyPatch, -) -> None: - import httpx - from agent_framework import _mcp as _mcp_module +_MCPProtocolEndpoint = dict[str, Any] | Callable[[dict[str, Any]], dict[str, Any]] - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) - tool = _make_task_tool() +def _make_mcp_protocol_server_mock( + *, + era: str, + capabilities: Mapping[str, Any], + endpoints: Mapping[str, _MCPProtocolEndpoint], +) -> tuple[MockTransport, list[tuple[dict[str, Any], dict[str, str]]]]: + """Create a protocol-era mock while keeping feature endpoints explicit in each test.""" + if era not in {"modern", "legacy"}: + raise ValueError(f"Unsupported MCP protocol era: {era}") - poll_calls = 0 - cancel_called = False + captured_requests: list[tuple[dict[str, Any], dict[str, str]]] = [] - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal poll_calls, cancel_called - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="t1") - if method == "tasks/get": - poll_calls += 1 - if poll_calls == 1: - raise McpError(types.ErrorData(code=int(httpx.codes.REQUEST_TIMEOUT), message="slow poll")) - return _make_task_snapshot(task_id="t1", status="completed") - if method == "tasks/result": - return _make_payload("recovered after transient") - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) - - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - - result = await tool.call_tool("slow_op") - assert _mcp_result_to_text(result) == "recovered after transient" - assert poll_calls == 2 - # Transient retry must not fire cancel. - pending = list(tool._pending_reload_tasks) - if pending: - await asyncio.gather(*pending, return_exceptions=True) - assert cancel_called is False + async def handler(request: Request) -> Response: + if request.method == "DELETE": + return Response(200) + + body = json.loads(request.content) + method = body["method"] + headers = {name.lower(): value for name, value in request.headers.items()} + captured_requests.append((body, headers)) + + error: dict[str, Any] | None = None + if method == "server/discover": + if era == "modern": + result = { + "supportedVersions": ["2026-07-28"], + "capabilities": dict(capabilities), + } + else: + error = {"code": -32601, "message": "Method not found"} + result = None + elif method == "initialize": + if era == "legacy": + result = { + "protocolVersion": "2025-11-25", + "capabilities": dict(capabilities), + "serverInfo": {"name": "legacy-server", "version": "1.0.0"}, + } + else: + error = {"code": -32601, "message": "Method not found"} + result = None + elif era == "legacy" and method == "notifications/initialized": + return Response(202) + elif era == "legacy" and method == "ping": + result = {} + elif method in endpoints: + endpoint = endpoints[method] + result = endpoint(body) if callable(endpoint) else endpoint + else: + raise AssertionError(f"Unexpected MCP method: {method}") + response: dict[str, Any] = {"jsonrpc": "2.0", "id": body["id"]} + response["error" if error is not None else "result"] = error if error is not None else result + return Response(200, json=response) -@pytest.mark.parametrize("enable_sensitive_data", [True, False], indirect=True) -async def test_call_tool_as_task_poll_hard_mcperror_cancels_and_raises( - monkeypatch: pytest.MonkeyPatch, - span_exporter: Any, - enable_sensitive_data: bool, - caplog: pytest.LogCaptureFixture, -) -> None: - from agent_framework import _mcp as _mcp_module + return MockTransport(handler), captured_requests - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) - private_error_detail = "founder-secret-token" - tool = _make_task_tool() +async def test_mcp_streamble_http_tool_connects_to_v2_server() -> None: + transport, captured_requests = _make_mcp_protocol_server_mock( + era="modern", + capabilities={"tools": {}}, + endpoints={ + "tools/list": { + "cacheScope": "private", + "resultType": "complete", + "ttlMs": 0, + "tools": [{"name": "greet", "inputSchema": {"type": "object", "properties": {}}}], + }, + "tools/call": { + "resultType": "complete", + "content": [{"type": "text", "text": "Hello!"}], + "isError": False, + }, + }, + ) + user_client = AsyncClient(transport=transport) - cancel_called = False + tool_a = MCPStreamableHTTPTool( + name="a", + url="http://example.com/mcp", + http_client=user_client, + header_provider=lambda _kw: {"Authorization": "Bearer token-a"}, + ) - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="h1") - if method == "tasks/get": - raise McpError( - types.ErrorData( - code=types.INVALID_PARAMS, - message=f"bad task id: {private_error_detail}", - ) - ) - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) + with patch.object(logger, "level", logging.INFO): + async with tool_a: + assert _connected_client(tool_a).protocol_version == "2026-07-28" + assert [function.name for function in tool_a.functions] == ["greet"] + + result = await tool_a.call_tool("greet") + assert isinstance(result, list) + assert [item.text for item in result if item.type == "text"] == ["Hello!"] + + captured_methods = [body["method"] for body, _ in captured_requests] + assert "server/discover" in captured_methods + assert "initialize" not in captured_methods + assert "tools/list" in captured_methods + assert "tools/call" in captured_methods + + tool_calls = [(body, headers) for body, headers in captured_requests if body["method"] == "tools/call"] + assert len(tool_calls) == 1 + body, headers = tool_calls[0] + params = body["params"] + meta = params["_meta"] + assert headers["mcp-protocol-version"] == meta["io.modelcontextprotocol/protocolVersion"] == "2026-07-28" + assert meta["io.modelcontextprotocol/logLevel"] == "info" + assert headers["mcp-method"] == body["method"] == "tools/call" + assert headers["mcp-name"] == params["name"] == "greet" + assert isinstance(meta["io.modelcontextprotocol/clientCapabilities"], dict) + + +async def test_mcp_streamable_http_tool_connects_to_legacy_server() -> None: + from mcp import MCPDeprecationWarning + + transport, captured_requests = _make_mcp_protocol_server_mock( + era="legacy", + capabilities={"tools": {}, "logging": {}}, + endpoints={ + "tools/list": { + "cacheScope": "private", + "resultType": "complete", + "ttlMs": 0, + "tools": [{"name": "greet", "inputSchema": {"type": "object", "properties": {}}}], + }, + "tools/call": { + "content": [{"type": "text", "text": "Hello!"}], + "isError": False, + }, + "logging/setLevel": {}, + }, + ) + user_client = AsyncClient(transport=transport) - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + tool_a = MCPStreamableHTTPTool( + name="a", + url="http://example.com/mcp", + http_client=user_client, + header_provider=lambda _kw: {"Authorization": "Bearer token-a"}, + ) with ( - caplog.at_level(logging.DEBUG, logger="agent_framework"), - pytest.raises(ToolExecutionException, match="bad task id") as exc_info, + patch.object(logger, "level", logging.WARNING), + pytest.warns(MCPDeprecationWarning, match="logging capability"), ): - await tool.call_tool("slow_op") + async with tool_a: + assert _connected_client(tool_a).protocol_version == "2025-11-25" + assert [function.name for function in tool_a.functions] == ["greet"] - assert isinstance(exc_info.value, _mcp_module._MCPTaskAbandoned) - assert private_error_detail in str(exc_info.value) - assert (private_error_detail in caplog.text) is enable_sensitive_data + result = await tool_a.call_tool("greet") + assert isinstance(result, list) + assert [item.text for item in result if item.type == "text"] == ["Hello!"] - pending = list(tool._pending_reload_tasks) - if pending: - await asyncio.gather(*pending, return_exceptions=True) - assert cancel_called is True + captured_methods = [body["method"] for body, _ in captured_requests] + assert "server/discover" in captured_methods + assert "initialize" in captured_methods + assert "tools/list" in captured_methods + logging_requests = [body for body, _ in captured_requests if body["method"] == "logging/setLevel"] + assert len(logging_requests) == 1 + assert logging_requests[0]["params"]["level"] == "warning" -async def test_call_tool_as_task_malformed_tasks_get_response_cancels_and_raises( - monkeypatch: pytest.MonkeyPatch, +@pytest.mark.parametrize( + ("era", "expected_version"), + [ + ("modern", "2026-07-28"), + ("legacy", "2025-11-25"), + ], +) +async def test_mcp_streamable_http_prompt_contract_supports_both_protocol_eras( + era: str, + expected_version: str, ) -> None: - """Malformed tasks/get response counts as abandonment (task may still be running).""" - from agent_framework import _mcp as _mcp_module - - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) - - tool = _make_task_tool() - - # Result without a valid GetTaskResult shape (no taskId/status/etc.). - malformed = types.Result.model_validate({"some": "junk"}) - - cancel_called = False - - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="m1") - if method == "tasks/get": - return malformed - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) - - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - - with pytest.raises(ToolExecutionException, match="malformed tasks/get"): - await tool.call_tool("slow_op") - - pending = list(tool._pending_reload_tasks) - if pending: - await asyncio.gather(*pending, return_exceptions=True) - assert cancel_called is True - - -async def test_call_tool_as_task_failed_terminal_does_not_cancel(monkeypatch: pytest.MonkeyPatch) -> None: - """Terminal failures (server already done) must NOT fire tasks/cancel.""" - from agent_framework import _mcp as _mcp_module + prompt_list_result: dict[str, Any] = { + "prompts": [ + { + "name": "summarize", + "description": "Summarize a topic", + "arguments": [ + { + "name": "topic", + "description": "Topic to summarize", + "required": True, + } + ], + } + ] + } + if era == "modern": + prompt_list_result.update({"resultType": "complete", "cacheScope": "private", "ttlMs": 0}) + + def get_prompt(body: dict[str, Any]) -> dict[str, Any]: + topic = body["params"]["arguments"]["topic"] + result = { + "description": "Rendered summary prompt", + "messages": [ + { + "role": "user", + "content": {"type": "text", "text": f"Summarize {topic}"}, + } + ], + } + if era == "modern": + result["resultType"] = "complete" + return result - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) + transport, captured_requests = _make_mcp_protocol_server_mock( + era=era, + capabilities={"prompts": {}}, + endpoints={ + "prompts/list": prompt_list_result, + "prompts/get": get_prompt, + }, + ) - tool = _make_task_tool() + async with AsyncClient(transport=transport) as user_client: + tool = MCPStreamableHTTPTool( + name=f"{era}-prompts", + url="http://example.com/mcp", + load_tools=False, + http_client=user_client, + ) - cancel_called = False + async with tool: + assert _connected_client(tool).protocol_version == expected_version + assert [function.name for function in tool.functions] == ["summarize"] + + prompt = tool.functions[0] + context = FunctionInvocationContext( + function=prompt, + arguments={"topic": "Python"}, + kwargs={"runtime_only": "do-not-forward"}, + ) + result = await prompt.invoke(arguments={"topic": "Python"}, context=context) + assert _mcp_result_to_text(result) == "Summarize Python" + + captured_methods = [body["method"] for body, _ in captured_requests] + assert "server/discover" in captured_methods + assert ("initialize" in captured_methods) is (era == "legacy") + assert "prompts/list" in captured_methods + assert "prompts/get" in captured_methods + + prompt_get = next(body for body, _ in captured_requests if body["method"] == "prompts/get") + assert prompt_get["params"]["name"] == "summarize" + assert prompt_get["params"]["arguments"] == {"topic": "Python"} + if era == "modern": + for method, name in (("prompts/list", None), ("prompts/get", "summarize")): + body, headers = next(item for item in captured_requests if item[0]["method"] == method) + meta = body["params"]["_meta"] + assert ( + headers["mcp-protocol-version"] == meta["io.modelcontextprotocol/protocolVersion"] == expected_version + ) + assert headers["mcp-method"] == method + assert isinstance(meta["io.modelcontextprotocol/clientCapabilities"], dict) + if name is not None: + assert headers["mcp-name"] == body["params"]["name"] == name - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="f1") - if method == "tasks/get": - return _make_task_snapshot(task_id="f1", status="failed", status_message="boom") - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] +@pytest.mark.parametrize( + ("era", "expected_version"), + [ + ("modern", "2026-07-28"), + ("legacy", "2025-11-25"), + ], +) +async def test_mcp_stdio_tool_connects_to_both_protocol_eras(era: str, expected_version: str) -> None: + server_script = dedent( + """ + import json + import sys + + era = sys.argv[1] + for line in sys.stdin: + request = json.loads(line) + if "id" not in request: + continue + + request_id = request["id"] + method = request["method"] + result = None + error = None + + if method == "server/discover": + if era == "modern": + result = { + "supportedVersions": ["2026-07-28"], + "capabilities": {"tools": {}}, + } + else: + error = {"code": -32601, "message": "Method not found"} + elif method == "initialize": + if era == "legacy": + result = { + "protocolVersion": "2025-11-25", + "capabilities": {"tools": {}}, + "serverInfo": {"name": "legacy-test-server", "version": "1.0"}, + } + else: + error = {"code": -32601, "message": "Method not found"} + elif method == "ping": + result = {} + elif method == "tools/list": + result = { + "tools": [{"name": "greet", "inputSchema": {"type": "object", "properties": {}}}], + } + if era == "modern": + result.update({"resultType": "complete", "cacheScope": "private", "ttlMs": 0}) + elif method == "tools/call": + result = { + "content": [{"type": "text", "text": "Hello!"}], + "isError": False, + } + if era == "modern": + result["resultType"] = "complete" + else: + error = {"code": -32601, "message": f"Unexpected method: {method}"} - with pytest.raises(ToolExecutionException, match="task failed: boom"): - await tool.call_tool("slow_op") + response = {"jsonrpc": "2.0", "id": request_id} + response["error" if error is not None else "result"] = error if error is not None else result + print(json.dumps(response), flush=True) + """ + ) + tool = MCPStdioTool( + name=f"{era}-stdio", + command=sys.executable, + args=["-c", server_script, era], + load_prompts=False, + ) - # Let any (incorrect) background work settle, then verify no cancel. - await asyncio.sleep(0.02) - assert cancel_called is False + async with tool: + assert _connected_client(tool).protocol_version == expected_version + assert [function.name for function in tool.functions] == ["greet"] + assert _mcp_result_to_text(await tool.call_tool("greet")) == "Hello!" -async def test_try_cancel_task_logs_warning_on_timeout( - caplog: pytest.LogCaptureFixture, monkeypatch: pytest.MonkeyPatch +async def test_agent_context_manager_authenticates_connect_with_closure_provider( + client: SupportsChatGetResponse, ) -> None: - from agent_framework import _mcp as _mcp_module - - # Shorten cancel timeout so the test is fast. - monkeypatch.setattr(_mcp_module, "_MCP_TASK_CANCEL_TIMEOUT", _mcp_module.timedelta(milliseconds=20)) - - tool = _make_task_tool() - - async def hang(*_a: Any, **_kw: Any) -> Any: - await asyncio.sleep(10.0) - - tool.session.send_request = AsyncMock(side_effect=hang) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - - with caplog.at_level(logging.WARNING, logger=_mcp_module.logger.name): - await tool._try_cancel_task("hang-1") - - assert any("timed out" in r.getMessage() and "hang-1" in r.getMessage() for r in caplog.records) - + """A constructor-supplied MCP tool authenticates its eager handshake with no run involved. -async def test_mcp_task_options_is_frozen() -> None: - from dataclasses import FrozenInstanceError + Pins that ``header_provider`` already covers construction-time credentials: entering the + agent context connects before any run exists, and the server rejects unauthenticated calls. + """ + import httpx2 as httpx - from agent_framework import MCPTaskOptions + captured_requests: list[tuple[str, dict[str, str]]] = [] - opts = MCPTaskOptions() - with pytest.raises(FrozenInstanceError): - opts.default_ttl = timedelta(seconds=5) # type: ignore[misc] # ty: ignore[invalid-assignment] + async def handler(request: httpx.Request) -> httpx.Response: + if request.method == "DELETE": + return httpx.Response(200) + if request.method == "GET": + return httpx.Response(405) + if request.headers.get("x-api-key") != "constructor-token": + return httpx.Response(401) + body = json.loads(request.content.decode()) + method = body.get("method", "") + captured_requests.append((method, {k.lower(): v for k, v in request.headers.items()})) + if method == "initialize": + return httpx.Response( + 200, + headers={"mcp-session-id": "test-session"}, + json={ + "jsonrpc": "2.0", + "id": body["id"], + "result": { + "protocolVersion": body["params"]["protocolVersion"], + "capabilities": {"tools": {}}, + "serverInfo": {"name": "mock-server", "version": "1.0.0"}, + }, + }, + ) + if method == "tools/list": + return httpx.Response( + 200, + json={ + "jsonrpc": "2.0", + "id": body["id"], + "result": {"tools": [{"name": "greet", "inputSchema": {"type": "object", "properties": {}}}]}, + }, + ) + if "id" in body: + return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": {}}) + return httpx.Response(202) + http_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) + # The credential is known at construction, so the provider closes over it and ignores kwargs. + tool = MCPStreamableHTTPTool( + name="test", + url="http://127.0.0.1:8000/mcp", + load_prompts=False, + http_client=http_client, + header_provider=lambda _kwargs: {"x-api-key": "constructor-token"}, + ) + try: + async with Agent(client=client, tools=[tool]): + assert tool.is_connected + finally: + await http_client.aclose() -async def test_mcp_task_options_max_task_wait_rejects_non_positive() -> None: - from agent_framework import MCPTaskOptions + assert [method for method, _ in captured_requests].count("initialize") == 1 + assert all(headers.get("x-api-key") == "constructor-token" for _, headers in captured_requests) - with pytest.raises(ValueError, match="positive"): - MCPTaskOptions(max_task_wait=timedelta(0)) - with pytest.raises(ValueError, match="positive"): - MCPTaskOptions(max_task_wait=timedelta(seconds=-1)) +async def test_constructor_supplied_mcp_tool_uses_run_credentials_on_lazy_connect( + client: SupportsChatGetResponse, +) -> None: + """A constructor-supplied MCP tool connected at first run authenticates with that run's kwargs. -async def test_fetch_task_result_hard_mcperror_raises_without_cancel() -> None: - """tasks/result hard McpError must wrap as ToolExecutionException without cancel (server done).""" - tool = _make_task_tool() + Without the agent context manager the handshake is deferred to ``run()``, so the run's + credentials are available and must reach ``header_provider``. + """ + import httpx2 as httpx - cancel_called = False + captured_requests: list[tuple[str, dict[str, str]]] = [] - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="hf") - if method == "tasks/get": - return _make_task_snapshot(task_id="hf", status="completed") - if method == "tasks/result": - raise McpError(types.ErrorData(code=types.INTERNAL_ERROR, message="payload vanished")) - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) + async def handler(request: httpx.Request) -> httpx.Response: + if request.method == "DELETE": + return httpx.Response(200) + if request.method == "GET": + return httpx.Response(405) + if request.headers.get("x-api-key") != "run-token": + return httpx.Response(401) + body = json.loads(request.content.decode()) + method = body.get("method", "") + captured_requests.append((method, {k.lower(): v for k, v in request.headers.items()})) + if method == "initialize": + return httpx.Response( + 200, + headers={"mcp-session-id": "test-session"}, + json={ + "jsonrpc": "2.0", + "id": body["id"], + "result": { + "protocolVersion": body["params"]["protocolVersion"], + "capabilities": {"tools": {}}, + "serverInfo": {"name": "mock-server", "version": "1.0.0"}, + }, + }, + ) + if method == "tools/list": + return httpx.Response( + 200, + json={ + "jsonrpc": "2.0", + "id": body["id"], + "result": {"tools": [{"name": "greet", "inputSchema": {"type": "object", "properties": {}}}]}, + }, + ) + if "id" in body: + return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": {}}) + return httpx.Response(202) - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + http_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) + tool = MCPStreamableHTTPTool( + name="test", + url="http://127.0.0.1:8000/mcp", + load_prompts=False, + http_client=http_client, + header_provider=lambda kw: {"x-api-key": kw["api_key"]}, + ) + agent = Agent(client=client, tools=[tool]) + try: + # No agent context manager, so the tool is still unconnected when the run starts. + assert not tool.is_connected + await agent.run("Hello", function_invocation_kwargs={"api_key": "run-token"}) + finally: + await tool.close() + await http_client.aclose() - with pytest.raises(ToolExecutionException, match="payload vanished"): - await tool.call_tool("slow_op") + assert [method for method, _ in captured_requests].count("initialize") == 1 + assert all(headers.get("x-api-key") == "run-token" for _, headers in captured_requests) - # No raw McpError leak and no cancel — server already reported the task as done. - await asyncio.sleep(0.02) - assert cancel_called is False +async def test_mcp_streamable_http_tool_header_provider_applies_across_transport_tasks(): + """Regression test for #7161: header_provider headers must reach tools/call requests. -async def test_completion_wait_timeout_without_max_wait_is_not_translated(monkeypatch: pytest.MonkeyPatch) -> None: - """Stray asyncio.TimeoutError during the completion wait must not pretend the deadline - expired when max_task_wait is None (and must not fire a spurious tasks/cancel). + The streamable HTTP transport sends requests from tasks spawned at connect time, + whose contexts never observe the ContextVar value set later inside call_tool. This + drives the real transport against an in-process mock server and asserts the + per-call Authorization header arrives on the tools/call HTTP request. """ - from agent_framework import _mcp as _mcp_module - - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) + import httpx2 as httpx - tool = _make_task_tool() - - def boom_parser(_: Any) -> list[Content]: - raise asyncio.TimeoutError - - tool.parse_tool_results = boom_parser - - cancel_called = False + captured_requests: list[tuple[str, str, dict[str, str]]] = [] - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method + async def handler(request: httpx.Request) -> httpx.Response: + if request.method == "DELETE": + return httpx.Response(200) + if request.method == "GET": + return httpx.Response(405) + body = json.loads(request.content.decode()) + method = body.get("method", "") + captured_requests.append((request.method, method, {k.lower(): v for k, v in request.headers.items()})) + if method == "initialize": + result = { + "protocolVersion": body["params"]["protocolVersion"], + "capabilities": {"tools": {}}, + "serverInfo": {"name": "mock-server", "version": "1.0.0"}, + } + return httpx.Response( + 200, + headers={"mcp-session-id": "test-session"}, + json={"jsonrpc": "2.0", "id": body["id"], "result": result}, + ) + if method == "tools/list": + result = { + "tools": [ + { + "name": "greet", + "description": "Says hello", + "inputSchema": {"type": "object", "properties": {"name": {"type": "string"}}}, + } + ] + } + return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": result}) if method == "tools/call": - return _make_create_task_result(task_id="t2") - if method == "tasks/get": - return _make_task_snapshot(task_id="t2", status="completed") - if method == "tasks/result": - return _make_payload("ok") - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) - - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + result = {"content": [{"type": "text", "text": "Hello!"}], "isError": False} + return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": result}) + if "id" in body: + # Any other request (e.g. ping) gets an empty result so the session doesn't block on it. + return httpx.Response(200, json={"jsonrpc": "2.0", "id": body["id"], "result": {}}) + # Notifications (e.g. notifications/initialized) + return httpx.Response(202) - with pytest.raises(asyncio.TimeoutError): - await tool.call_tool("slow_op") + http_client = httpx.AsyncClient(transport=httpx.MockTransport(handler)) + tool = MCPStreamableHTTPTool( + name="test", + url="http://127.0.0.1:8000/mcp", + load_prompts=False, + http_client=http_client, + header_provider=lambda kw: {"Authorization": f"Bearer {kw.get('api_key', '')}"}, + ) + try: + async with tool: + await tool.call_tool("greet", name="Alice", api_key="secret-token") + finally: + await http_client.aclose() - # Must NOT translate to max_task_wait expiry and must NOT cancel. - await asyncio.sleep(0.02) - assert cancel_called is False + call_headers = [headers for _, method, headers in captured_requests if method == "tools/call"] + assert len(call_headers) == 1 + assert call_headers[0].get("authorization") == "Bearer secret-token" -async def test_completion_wait_inner_timeout_with_max_wait_set_propagates( - monkeypatch: pytest.MonkeyPatch, -) -> None: - """An asyncio.TimeoutError raised by the completion wait itself must propagate - unchanged even when max_task_wait IS set, and must NOT fire a spurious cancel. - """ - from agent_framework import MCPTaskOptions - from agent_framework import _mcp as _mcp_module +async def test_mcp_streamable_http_tool_header_provider_snapshot_restored_after_call(): + """Test that the instance-level header snapshot is set during a call and cleared after.""" + observed_snapshots: list[dict[str, str] | None] = [] + original_call_tool = MCPTool.call_tool - monkeypatch.setattr(_mcp_module, "_MCP_TASK_MIN_POLL_INTERVAL", _mcp_module.timedelta(milliseconds=1)) + async def spy_call_tool(self, tool_name, **kwargs): + # Capture the snapshot value during the super call + observed_snapshots.append(self._active_call_headers) + return await original_call_tool(self, tool_name, **kwargs) - # Deadline set comfortably above the actual test run time. - tool = _make_task_tool(task_options=MCPTaskOptions(max_task_wait=timedelta(seconds=5))) + class _TestServer(MCPStreamableHTTPTool): + async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] + session = Mock(spec=ClientSession) + sdk_client = _mock_sdk_client(session=session, protocol_version="2026-07-28") + sdk_client.list_tools = AsyncMock( + return_value=types.ListToolsResult( + tools=[ + types.Tool( + name="greet", + description="Says hello", + input_schema={"type": "object", "properties": {"name": {"type": "string"}}}, + ) + ] + ) + ) + sdk_client.call_tool = AsyncMock( + return_value=types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + ) + self._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) + self.is_connected = True - def boom_parser(_: Any) -> list[Content]: - raise asyncio.TimeoutError("inner parser timeout") + def get_mcp_client(self): # pyrefly: ignore[bad-override] + return None - tool.parse_tool_results = boom_parser + server = _TestServer( + name="test", + url="http://example.com/mcp", + header_provider=lambda kw: {"X-Auth": kw.get("auth_token", "")}, + ) + async with server: + await server.load_tools() + with patch.object(MCPTool, "call_tool", spy_call_tool): + await server.call_tool("greet", name="Alice", auth_token="bearer-xyz") - cancel_called = False + assert observed_snapshots == [{"X-Auth": "bearer-xyz"}] + assert server._active_call_headers is None - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - nonlocal cancel_called - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="t3") - if method == "tasks/get": - return _make_task_snapshot(task_id="t3", status="completed") - if method == "tasks/result": - return _make_payload("ok") - if method == "tasks/cancel": - cancel_called = True - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] +async def test_mcp_streamable_http_tool_header_provider_serializes_concurrent_calls(): + """Concurrent call_tool invocations on the same tool must not mix per-call headers. - with pytest.raises(asyncio.TimeoutError, match="inner parser timeout"): - await tool.call_tool("slow_op") + The framework executes parallel tool invocations concurrently, so a second call + must not overwrite the active header snapshot while the first call's requests + are still in flight (that would attach the wrong credentials). + """ + release = asyncio.Event() + in_call = asyncio.Event() - # Inner TimeoutError must NOT be translated into "exceeded max_task_wait" and must NOT cancel. - await asyncio.sleep(0.02) - assert cancel_called is False + async def blocking_call_tool(tool_name, *, arguments=None, meta=None): + in_call.set() + await release.wait() + return types.CallToolResult(content=[types.TextContent(type="text", text="Hello!")]) + class _TestServer(MCPStreamableHTTPTool): + async def connect(self, *, reset: bool = False) -> None: + mock_session = Mock(spec=ClientSession) + sdk_client = AsyncMock() + sdk_client.session = mock_session + sdk_client.list_tools = AsyncMock( + return_value=types.ListToolsResult( + tools=[ + types.Tool( + name="greet", + description="Says hello", + input_schema={"type": "object", "properties": {"name": {"type": "string"}}}, + ) + ] + ) + ) + sdk_client.call_tool = AsyncMock(side_effect=blocking_call_tool) + mock_session.send_ping = AsyncMock() + self._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) + self.is_connected = True -async def test_max_wait_interrupts_long_poll_sleep(monkeypatch: pytest.MonkeyPatch) -> None: - """Deadline must cancel through a long ``asyncio.sleep`` (clamped to MAX), not wait it out.""" - from agent_framework import MCPTaskOptions + async def _reconnect_for_identity_change(self) -> None: + await self.connect(reset=True) - tool = _make_task_tool(task_options=MCPTaskOptions(max_task_wait=timedelta(milliseconds=100))) + def get_mcp_client(self): # pyrefly: ignore[bad-override] + return None - async def fake_send(request: Any, _result_type: Any, *_a: Any, **_kw: Any) -> Any: - method = request.root.method - if method == "tools/call": - return _make_create_task_result(task_id="ds") - if method == "tasks/get": - # Suggest a 5s poll interval (gets clamped to MAX=5s); wait_for must cut through it. - return _make_task_snapshot(task_id="ds", status="working", poll_interval_ms=5000) - if method == "tasks/cancel": - return types.CancelTaskResult() # type: ignore[call-arg] # pyrefly: ignore[missing-argument] # ty: ignore[missing-argument] - raise AssertionError(method) + server = _TestServer( + name="test", + url="http://example.com/mcp", + header_provider=lambda kw: {"X-Auth": kw.get("auth_token", "")}, + ) + async with server: + await server.load_tools() - tool.session.send_request = AsyncMock(side_effect=fake_send) # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] + first = asyncio.create_task(server.call_tool("greet", name="A", auth_token="token-a")) + await in_call.wait() + assert server._active_call_headers == {"X-Auth": "token-a"} - loop = asyncio.get_running_loop() - started = loop.time() - with pytest.raises(ToolExecutionException, match="exceeded max_task_wait"): - await tool.call_tool("slow_op") - elapsed = loop.time() - started + second = asyncio.create_task(server.call_tool("greet", name="B", auth_token="token-b")) + for _ in range(10): + await asyncio.sleep(0) + # The second call must be waiting on the first; its headers must not have + # replaced the snapshot the request hook reads for the in-flight call. + assert server._active_call_headers == {"X-Auth": "token-a"} - # Should fire near the 100ms deadline, well below the 5s clamped sleep. - assert elapsed < 1.0, f"deadline did not interrupt long sleep (elapsed={elapsed:.3f}s)" + release.set() + await asyncio.gather(first, second) - pending = list(tool._pending_reload_tasks) - if pending: - await asyncio.gather(*pending, return_exceptions=True) + assert server._active_call_headers is None # endregion @@ -10142,14 +10842,15 @@ async def test_call_tool_forwards_only_declared_arguments() -> None: class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="test_tool", description="Test tool", - inputSchema={ + input_schema={ "type": "object", "properties": {"param": {"type": "string"}}, "required": ["param"], @@ -10158,7 +10859,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri ] ) ) - self.session.call_tool = AsyncMock( + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult(content=[types.TextContent(type="text", text="ok")]) ) @@ -10196,14 +10897,15 @@ async def test_call_tool_forwards_runtime_kwargs_the_server_declares() -> None: class TestServer(MCPTool): async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-override] # ty: ignore[invalid-method-override] - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + self.session = mock_session + mock_session.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="test_tool", description="Test tool", - inputSchema={ + input_schema={ "type": "object", "properties": { "param": {"type": "string"}, @@ -10216,7 +10918,7 @@ async def connect(self): # type: ignore[override] # pyrefly: ignore[bad-overri ] ) ) - self.session.call_tool = AsyncMock( + mock_session.call_tool = AsyncMock( return_value=types.CallToolResult(content=[types.TextContent(type="text", text="ok")]) ) @@ -10256,14 +10958,16 @@ async def test_header_provider_reading_contextvar_keeps_credential_out_of_argume class TestServer(MCPStreamableHTTPTool): async def connect(self, *, reset: bool = False) -> None: - self.session = Mock(spec=ClientSession) - self.session.list_tools = AsyncMock( + mock_session = Mock(spec=ClientSession) + sdk_client = AsyncMock() + sdk_client.session = mock_session + sdk_client.list_tools = AsyncMock( return_value=types.ListToolsResult( tools=[ types.Tool( name="get_weather", description="Weather", - inputSchema={ + input_schema={ "type": "object", "properties": {"city": {"type": "string"}, "api_key": {"type": "string"}}, "required": ["city"], @@ -10272,10 +10976,11 @@ async def connect(self, *, reset: bool = False) -> None: ] ) ) - self.session.call_tool = AsyncMock( + sdk_client.call_tool = AsyncMock( return_value=types.CallToolResult(content=[types.TextContent(type="text", text="sunny")]) ) - self.session.send_ping = AsyncMock() + mock_session.send_ping = AsyncMock() + self._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) self.is_connected = True async def _reconnect_for_identity_change(self) -> None: @@ -10298,7 +11003,10 @@ def provider(_kwargs: dict[str, Any]) -> dict[str, str]: context = FunctionInvocationContext(function=tool, arguments={"city": "Seattle"}, kwargs={}) await tool.invoke(arguments={"city": "Seattle"}, context=context) - _, call_kwargs = server.session.call_tool.call_args # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + connection = server._connection + assert connection is not None + assert connection.client is not None + _, call_kwargs = cast(AsyncMock, connection.client.call_tool).call_args assert seen_headers[-1] == {"Authorization": "Bearer secret-1"} assert call_kwargs["arguments"] == {"city": "Seattle"} @@ -10317,7 +11025,7 @@ def provider(_kwargs: dict[str, Any]) -> dict[str, str]: def _unauthorized_http_client() -> Any: """An HTTP client whose every response is 401, so `initialize` always fails.""" - import httpx + import httpx2 as httpx return httpx.AsyncClient(transport=httpx.MockTransport(lambda request: httpx.Response(401, request=request))) @@ -10332,6 +11040,35 @@ async def _pending_lifecycle_task_names() -> list[str]: return names +async def test_lifecycle_owner_does_not_inherit_call_headers(): + """Connection-lifetime work must not inherit headers from the call that starts it.""" + from agent_framework._mcp import _mcp_call_headers + + tool = MCPStreamableHTTPTool(name="context-check", url="https://mcp.example/mcp") + observed_call_headers: list[Any] = [] + observed_request_context: list[str | None] = [] + request_context = ContextVar[str]("request_context") + + async def record_owner_context(**_: Any) -> None: + observed_call_headers.append(_mcp_call_headers.get(None)) + observed_request_context.append(request_context.get(None)) + tool.is_connected = True + + call_headers_token = _mcp_call_headers.set((tool._header_request_owner, {"Authorization": "principal-a"})) + request_context_token = request_context.set("request-a") + try: + with patch.object(tool, "_connect_on_owner", new=record_owner_context): + await tool.connect() + + assert observed_call_headers == [None] + assert observed_request_context == ["request-a"] + finally: + request_context.reset(request_context_token) + _mcp_call_headers.reset(call_headers_token) + tool.is_connected = False + await tool.close() + + async def test_failed_connect_stops_the_lifecycle_owner(): """A connect that fails must not leave its owner task blocked on the queue forever.""" client = _unauthorized_http_client() diff --git a/python/packages/core/tests/core/test_mcp_http_auth.py b/python/packages/core/tests/core/test_mcp_http_auth.py index b0bc05ce70a..1374f7b0507 100644 --- a/python/packages/core/tests/core/test_mcp_http_auth.py +++ b/python/packages/core/tests/core/test_mcp_http_auth.py @@ -8,11 +8,12 @@ import sys from collections.abc import AsyncGenerator, AsyncIterator, Callable from contextvars import ContextVar -from typing import Any, Literal, TypeAlias +from typing import Any, Literal, TypeAlias, cast from unittest.mock import AsyncMock, Mock, patch -import httpx +import httpx2 as httpx import pytest +from mcp.client.session import ClientSession from agent_framework import FunctionInvocationContext, MCPStreamableHTTPTool from agent_framework.exceptions import ToolException, ToolExecutionException @@ -149,6 +150,12 @@ def _tool(client: httpx.AsyncClient, principal: str, *, declare_credential: bool ) +def _connected_client(tool: MCPStreamableHTTPTool) -> Any: + connection = tool._require_connection() + assert connection.client is not None + return connection.client + + def _calls(requests: list[httpx.Request]) -> list[httpx.Request]: return [ request @@ -181,7 +188,7 @@ def create_owned_client(**kwargs: Any) -> httpx.AsyncClient: load_prompts=False, header_provider=lambda _: {"Authorization": principal.get()}, ) - with patch("httpx.AsyncClient", side_effect=create_owned_client): + with patch("httpx2.AsyncClient", side_effect=create_owned_client): async with tool: await tool.call_tool("record") response_cookies.clear() @@ -302,7 +309,7 @@ async def transport(**kwargs: Any) -> AsyncGenerator[tuple[()]]: else patch("agent_framework._mcp.streamable_http_client", side_effect=transport) ) try: - with transport_patch, patch("httpx.AsyncClient", return_value=client), pytest.raises(error): + with transport_patch, patch("httpx2.AsyncClient", return_value=client), pytest.raises(error): await tool.connect() assert client.event_hooks["request"] == original_hooks assert client.is_closed is owned_client @@ -335,7 +342,7 @@ def create_owned_client(**kwargs: Any) -> httpx.AsyncClient: if header_source == "provider" else None, ) - with patch("httpx.AsyncClient", side_effect=create_owned_client): + with patch("httpx2.AsyncClient", side_effect=create_owned_client): async with tool: await tool.call_tool("record") await tool.call_tool("record") @@ -416,8 +423,7 @@ async def test_dynamic_headers_reconnect_before_principal_change_and_bind_ambien await tool.call_tool("record", credential="token-a", marker="first") await tool.call_tool("record", credential="token-b", marker="second") await tool.load_tools() - assert tool.session is not None - await tool.session.send_ping() + await tool._ensure_connected() assert {function.name for function in tool.functions} == {"record", "token-b-only"} assert [request.headers["Authorization"] for request in _requests_for_method(requests, "initialize")] == [ @@ -736,7 +742,6 @@ async def test_cancelled_identity_switch_keeps_the_existing_session_bound(mcp_ht existing_session = tool.session existing_functions = list(tool.functions) existing_call_meta = dict(tool._tool_call_meta_by_name) - existing_task_support = dict(tool._tool_task_support_by_name) existing_param_names = {name: set(params) for name, params in tool._tool_param_names_by_name.items()} async def cancel_reconnect() -> None: @@ -752,7 +757,6 @@ async def cancel_reconnect() -> None: assert tool.session is existing_session assert tool.functions == existing_functions assert tool._tool_call_meta_by_name == existing_call_meta - assert tool._tool_task_support_by_name == existing_task_support assert tool._tool_param_names_by_name == existing_param_names await tool.call_tool("record", credential="token-b") @@ -843,7 +847,7 @@ async def test_discovery_failure_cleans_up_resources( failure = failure_type("discovery failed") try: with ( - patch("httpx.AsyncClient", return_value=client), + patch("httpx2.AsyncClient", return_value=client), patch.object(tool, discovery_method, new=AsyncMock(side_effect=failure)), pytest.raises(failure_type, match="discovery failed") as error, ): @@ -902,7 +906,7 @@ async def handle(request: httpx.Request) -> httpx.Response: "name": "record" if failure_count == 2 else "partial_record", "inputSchema": {"type": "object", "properties": {"marker": {"type": "string"}}}, "_meta": {"source": "discovery"}, - "execution": {"taskSupport": "optional"}, + "execution": {"taskSupport": "forbidden"}, } ] } @@ -927,12 +931,12 @@ def create_client(**kwargs: Any) -> httpx.AsyncClient: http_client=None if owned_client else create_client(), header_provider=lambda _: {"Authorization": "token-a"}, ) - from mcp.shared.exceptions import McpError + from mcp.shared.exceptions import MCPError try: - with patch("httpx.AsyncClient", side_effect=create_client): + with patch("httpx2.AsyncClient", side_effect=create_client): for _ in range(2): - with pytest.raises(McpError, match="discovery failed"): + with pytest.raises(MCPError, match="discovery failed"): await tool.connect() assert tool.session is None assert not tool.is_connected @@ -940,7 +944,6 @@ def create_client(**kwargs: Any) -> httpx.AsyncClient: assert not tool._prompts_loaded assert tool.functions == [] assert tool._tool_call_meta_by_name == {} - assert tool._tool_task_support_by_name == {} assert tool._tool_param_names_by_name == {} assert all(not client.event_hooks["request"] for client in clients) assert all(client.is_closed is owned_client for client in clients) @@ -995,7 +998,7 @@ async def enter() -> None: async with tool: pytest.fail("Cancelled setup must not enter the context manager") - with patch("httpx.AsyncClient", return_value=client), patch.object(tool, "_close_on_owner", record_cleanup): + with patch("httpx2.AsyncClient", return_value=client), patch.object(tool, "_close_on_owner", record_cleanup): caller = asyncio.create_task(enter()) try: await asyncio.wait_for(setup_started.wait(), timeout=5) @@ -1090,7 +1093,7 @@ async def block_setup(request: httpx.Request) -> None: caller = asyncio.create_task(tool.connect()) try: await asyncio.wait_for(setup_started.wait(), timeout=5) - abandoned_session = tool.session + abandoned_connection = tool._connection caller.cancel() with pytest.raises(asyncio.CancelledError): await caller @@ -1098,7 +1101,7 @@ async def block_setup(request: httpx.Request) -> None: release_setup.set() await asyncio.wait_for(retry, timeout=5) assert tool.is_connected - assert tool.session is not abandoned_session + assert tool._connection is not abandoned_connection assert ( sum( request.method == "POST" and json.loads(request.content).get("method") == "initialize" @@ -1123,8 +1126,7 @@ async def test_failed_discovery_preserves_caller_supplied_session( ) -> None: client, _, _ = mcp_http_server async with _tool(client, "token-a") as source: - supplied_session = source.session - assert supplied_session is not None + supplied_session = cast(ClientSession, _connected_client(source).session) original_hooks = list(client.event_hooks["request"]) borrowed = MCPStreamableHTTPTool( name="borrowed", url="https://must-not-connect.example/mcp", session=supplied_session @@ -1169,8 +1171,7 @@ async def test_failed_discovery_preserves_caller_supplied_session( async def test_caller_supplied_session_rejects_header_identity_changes(mcp_http_server: MCPHTTPServer) -> None: client, _, _ = mcp_http_server async with _tool(client, "token-a") as source: - supplied_session = source.session - assert supplied_session is not None + supplied_session = cast(ClientSession, _connected_client(source).session) borrowed = MCPStreamableHTTPTool( name="borrowed", url="https://must-not-connect.example/mcp", @@ -1204,6 +1205,25 @@ async def test_caller_supplied_session_rejects_header_identity_changes(mcp_http_ await supplied_session.send_ping() +async def test_replacing_supplied_session_invalidates_bound_header_identity() -> None: + """A recorded header identity is valid only for the session that established it.""" + original_session = Mock(spec=ClientSession) + replacement_session = Mock(spec=ClientSession) + tool = MCPStreamableHTTPTool( + name="borrowed", + url="https://must-not-connect.example/mcp", + session=original_session, + header_provider=lambda _kwargs: {"Authorization": "A"}, + ) + tool._bind_session_headers({"Authorization": "A"}) + + with pytest.warns(DeprecationWarning, match=r"MCPTool\.session.*removed in vNext"): + tool.session = replacement_session + + with pytest.raises(ToolExecutionException, match="identity is unknown"): + await tool._ensure_session_identity({"Authorization": "A"}, {}) + + async def test_cancelled_redundant_connect_keeps_existing_session(mcp_http_server: MCPHTTPServer) -> None: client, _, _ = mcp_http_server async with _tool(client, "token-a") as tool: @@ -1238,8 +1258,7 @@ async def cancel_before_delivery( async def test_cancelled_borrowed_session_caller_can_retry(mcp_http_server: MCPHTTPServer) -> None: client, _, _ = mcp_http_server async with _tool(client, "token-a") as source: - supplied_session = source.session - assert supplied_session is not None + supplied_session = cast(ClientSession, _connected_client(source).session) borrowed = MCPStreamableHTTPTool( name="borrowed", url="https://must-not-connect.example/mcp", session=supplied_session ) diff --git a/python/packages/core/tests/core/test_mcp_observability.py b/python/packages/core/tests/core/test_mcp_observability.py index 24168b1b138..9af3d1c7655 100644 --- a/python/packages/core/tests/core/test_mcp_observability.py +++ b/python/packages/core/tests/core/test_mcp_observability.py @@ -12,13 +12,11 @@ from unittest.mock import AsyncMock, Mock import pytest -from mcp import types -from mcp.shared.exceptions import McpError -from mcp.types import ErrorData +from mcp import MCPError, types from opentelemetry.sdk.trace.export.in_memory_span_exporter import InMemorySpanExporter from opentelemetry.trace import SpanKind, StatusCode -from agent_framework import MCPStdioTool, MCPStreamableHTTPTool, MCPWebsocketTool +from agent_framework import MCPStdioTool, MCPStreamableHTTPTool from agent_framework._mcp import MCPTool from agent_framework.exceptions import ToolExecutionException from agent_framework.observability import OtelAttr, create_mcp_client_span @@ -51,10 +49,10 @@ def _make_tool_list_result( tools = [{"name": "get-weather", "description": "Get weather", "inputSchema": {"type": "object"}}] result = Mock() result.tools = [ - types.Tool(name=t["name"], description=t.get("description", ""), inputSchema=t.get("inputSchema", {})) + types.Tool(name=t["name"], description=t.get("description", ""), input_schema=t.get("inputSchema", {})) for t in tools ] - result.nextCursor = None + result.next_cursor = None return result @@ -68,16 +66,16 @@ def _make_prompt_list_result( result.prompts = [ types.Prompt(name=p["name"], description=p.get("description", ""), arguments=None) for p in prompts ] - result.nextCursor = None + result.next_cursor = None return result def _make_call_tool_result(text: str = "result", is_error: bool = False) -> Mock: """Create a mock CallToolResult.""" result = Mock() - result.isError = is_error + result.is_error = is_error result.content = [types.TextContent(type="text", text=text)] - result.structuredContent = None + result.structured_content = None return result @@ -143,7 +141,7 @@ async def test_mcp_initialize_span(span_exporter: InMemorySpanExporter): mock_session_cls = AsyncMock() init_result = Mock() init_result.capabilities = None - init_result.protocolVersion = "2025-06-18" + init_result.protocol_version = "2025-06-18" mock_session_cls.initialize = AsyncMock(return_value=init_result) # Create a mock transport context manager @@ -170,7 +168,7 @@ async def patched_connect( with create_mcp_client_span("initialize", attributes=self_._mcp_base_span_attributes()) as init_span: result = await mock_session_cls.initialize() - protocol_version = getattr(result, "protocolVersion", None) + protocol_version = getattr(result, "protocol_version", None) if protocol_version: init_span.set_attribute(OtelAttr.MCP_PROTOCOL_VERSION, protocol_version) @@ -265,7 +263,7 @@ async def test_mcp_tools_call_tool_error_sets_error_type( enable_sensitive_data: bool, caplog: pytest.LogCaptureFixture, ) -> None: - """When CallToolResult.isError is true, error.type should be 'tool_error' per MCP spec.""" + """When CallToolResult.is_error is true, error.type should be 'tool_error' per MCP spec.""" private_error_detail = "founder-secret-token" tool = _make_connected_mcp_tool() tool.session.call_tool = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] @@ -295,11 +293,11 @@ async def test_mcp_tools_call_mcp_error_sets_error_type( enable_sensitive_data: bool, caplog: pytest.LogCaptureFixture, ) -> None: - """When session.call_tool() raises McpError, error.type should be the exception class name.""" + """When session.call_tool() raises MCPError, error.type should be the exception class name.""" private_error_detail = "founder-secret-token" tool = _make_connected_mcp_tool() tool.session.call_tool = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=McpError(ErrorData(code=-32600, message=f"invalid request: {private_error_detail}")) + side_effect=MCPError(-32600, f"invalid request: {private_error_detail}") ) span_exporter.clear() @@ -315,7 +313,7 @@ async def test_mcp_tools_call_mcp_error_sets_error_type( call_spans = [s for s in spans if "tools/call" in s.name] assert len(call_spans) == 1 span = call_spans[0] - assert span.attributes.get(OtelAttr.ERROR_TYPE) == "McpError" # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + assert span.attributes.get(OtelAttr.ERROR_TYPE) == "MCPError" # type: ignore[union-attr] # ty: ignore[unresolved-attribute] _assert_error_detail_policy(span, private_error_detail, enable_sensitive_data) @@ -330,8 +328,8 @@ async def test_mcp_tools_call_second_connection_loss_log_respects_sensitive_data tool = _make_connected_mcp_tool() tool.session.call_tool = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] side_effect=[ - McpError(ErrorData(code=-32000, message=f"session terminated: {private_error_detail}")), - McpError(ErrorData(code=-32000, message=f"session terminated: {private_error_detail}")), + MCPError(-32000, f"session terminated: {private_error_detail}"), + MCPError(-32000, f"session terminated: {private_error_detail}"), ] ) tool.connect = AsyncMock(return_value=None) # type: ignore[method-assign] @@ -345,7 +343,7 @@ async def test_mcp_tools_call_second_connection_loss_log_respects_sensitive_data assert (private_error_detail in caplog.text) is enable_sensitive_data if not enable_sensitive_data: - assert "MCP tool call connection closed after reconnection (McpError)." in caplog.text + assert "MCP tool call connection closed after reconnection (MCPError)." in caplog.text @pytest.mark.parametrize("enable_sensitive_data", [True, False], indirect=True) @@ -402,11 +400,11 @@ async def test_mcp_prompts_get_mcp_error_sets_error_type( enable_sensitive_data: bool, caplog: pytest.LogCaptureFixture, ) -> None: - """When session.get_prompt() raises McpError, the span should have error.type and ERROR status.""" + """When session.get_prompt() raises MCPError, the span should have error.type and ERROR status.""" private_error_detail = "founder-secret-token" tool = _make_connected_mcp_tool() tool.session.get_prompt = AsyncMock( # type: ignore[method-assign, union-attr] # ty: ignore[invalid-assignment] - side_effect=McpError(ErrorData(code=-32602, message=f"prompt not found: {private_error_detail}")) + side_effect=MCPError(-32602, f"prompt not found: {private_error_detail}") ) span_exporter.clear() @@ -422,7 +420,7 @@ async def test_mcp_prompts_get_mcp_error_sets_error_type( prompt_spans = [s for s in spans if "prompts/get" in s.name] assert len(prompt_spans) == 1 span = prompt_spans[0] - assert span.attributes.get(OtelAttr.ERROR_TYPE) == "McpError" # type: ignore[union-attr] # ty: ignore[unresolved-attribute] + assert span.attributes.get(OtelAttr.ERROR_TYPE) == "MCPError" # type: ignore[union-attr] # ty: ignore[unresolved-attribute] _assert_error_detail_policy(span, private_error_detail, enable_sensitive_data) @@ -464,23 +462,6 @@ def test_mcp_http_tool_http_default_port(): assert attrs[OtelAttr.PORT] == 80 -def test_mcp_websocket_tool_transport_attributes(): - """MCPWebsocketTool should have tcp transport and URL-based server address/port.""" - tool = MCPWebsocketTool(name="test", url="wss://ws.example.com:9090/mcp") - attrs = tool._mcp_base_span_attributes() - assert attrs[OtelAttr.NETWORK_TRANSPORT] == "tcp" - assert attrs[OtelAttr.NETWORK_PROTOCOL_NAME] == "websocket" - assert attrs[OtelAttr.ADDRESS] == "ws.example.com" - assert attrs[OtelAttr.PORT] == 9090 - - -def test_mcp_websocket_tool_default_port(): - """MCPWebsocketTool should default to 443 for wss.""" - tool = MCPWebsocketTool(name="test", url="wss://ws.example.com/mcp") - attrs = tool._mcp_base_span_attributes() - assert attrs[OtelAttr.PORT] == 443 - - # endregion diff --git a/python/packages/core/tests/core/test_mcp_skills.py b/python/packages/core/tests/core/test_mcp_skills.py index 1584312628e..ac7b122d4ed 100644 --- a/python/packages/core/tests/core/test_mcp_skills.py +++ b/python/packages/core/tests/core/test_mcp_skills.py @@ -10,20 +10,20 @@ import json import warnings import zipfile -from collections.abc import Iterator, Mapping, Sequence +from collections.abc import Callable, Iterator, Mapping, Sequence from datetime import timedelta -from unittest.mock import AsyncMock, patch +from typing import Any +from unittest.mock import AsyncMock, call, patch from urllib.parse import unquote import pytest -from mcp.shared.exceptions import McpError +from mcp import MCPError from mcp.types import ( + INVALID_PARAMS, BlobResourceContents, - ErrorData, ReadResourceResult, TextResourceContents, ) -from pydantic import AnyUrl from agent_framework import CachingSkillsSource, MCPSkill, MCPSkillResource, MCPSkillsSource, SkillsSourceContext from agent_framework._skills import _fully_unquote, _parse_mcp_skill_index @@ -63,7 +63,7 @@ def _make_text_result(text: str, uri: str = "skill://test") -> ReadResourceResult: """Create a ReadResourceResult with a single TextResourceContents.""" - return ReadResourceResult(contents=[TextResourceContents(uri=AnyUrl(uri), text=text, mimeType="text/markdown")]) + return ReadResourceResult(contents=[TextResourceContents(uri=uri, text=text, mime_type="text/markdown")]) def _make_blob_result( @@ -73,7 +73,7 @@ def _make_blob_result( ) -> ReadResourceResult: """Create a ReadResourceResult with a single BlobResourceContents.""" return ReadResourceResult( - contents=[BlobResourceContents(uri=AnyUrl(uri), blob=base64.b64encode(data).decode(), mimeType=mime_type)] + contents=[BlobResourceContents(uri=uri, blob=base64.b64encode(data).decode(), mime_type=mime_type)] ) @@ -82,21 +82,36 @@ def _make_empty_result() -> ReadResourceResult: return ReadResourceResult(contents=[]) -def _make_client(**read_resource_responses: ReadResourceResult) -> AsyncMock: +def _legacy_resource_not_found(uri: str) -> MCPError: + return MCPError(-32002, f"Resource not found: {uri}") + + +def _modern_resource_not_found(uri: str) -> MCPError: + return MCPError(INVALID_PARAMS, "Resource not found", {"uri": uri}) + + +_RESOURCE_NOT_FOUND_ERRORS = [_legacy_resource_not_found, _modern_resource_not_found] + + +def _make_client( + resource_not_found_error: Callable[[str], MCPError] = _legacy_resource_not_found, + /, + **read_resource_responses: ReadResourceResult, +) -> AsyncMock: """Create a mock ClientSession whose read_resource returns different results per URI. Args: + resource_not_found_error: Creates the missing-resource error for an unknown URI. **read_resource_responses: Mapping of URI string to ReadResourceResult. - Any URI not in this mapping raises McpError with the MCP-spec - "Resource not found" code (-32002). + Any URI not in this mapping raises the configured missing-resource error. """ client = AsyncMock() - async def _read_resource(uri: AnyUrl) -> ReadResourceResult: + async def _read_resource(uri: str) -> ReadResourceResult: uri_str = str(uri) if uri_str in read_resource_responses: return read_resource_responses[uri_str] - raise McpError(error=ErrorData(code=-32002, message=f"Resource not found: {uri_str}")) + raise resource_not_found_error(uri_str) client.read_resource = AsyncMock(side_effect=_read_resource) return client @@ -225,8 +240,8 @@ async def test_read_empty_returns_none(self) -> None: async def test_read_multiple_text_contents_joined(self) -> None: result = ReadResourceResult( contents=[ - TextResourceContents(uri=AnyUrl("skill://a"), text="line1", mimeType="text/plain"), - TextResourceContents(uri=AnyUrl("skill://b"), text="line2", mimeType="text/plain"), + TextResourceContents(uri="skill://a", text="line1", mime_type="text/plain"), + TextResourceContents(uri="skill://b", text="line2", mime_type="text/plain"), ] ) resource = MCPSkillResource(name="multi", result=result) @@ -237,11 +252,11 @@ async def test_binary_takes_precedence_over_text(self) -> None: data = b"\xff\xfe" result = ReadResourceResult( contents=[ - TextResourceContents(uri=AnyUrl("skill://a"), text="text", mimeType="text/plain"), + TextResourceContents(uri="skill://a", text="text", mime_type="text/plain"), BlobResourceContents( - uri=AnyUrl("skill://b"), + uri="skill://b", blob=base64.b64encode(data).decode(), - mimeType="application/octet-stream", + mime_type="application/octet-stream", ), ] ) @@ -451,7 +466,7 @@ async def test_get_resource_preserves_safe_names_and_schemes(self, name: str, ro assert resource is not None assert resource.name == name assert await resource.read() == "safe content" - client.read_resource.assert_awaited_once_with(AnyUrl(root + name.replace("\\", "/"))) + client.read_resource.assert_awaited_once_with(root + name.replace("\\", "/")) @pytest.mark.parametrize("depth", [1, 31, 32, 33, 4096]) @pytest.mark.parametrize( @@ -476,7 +491,7 @@ async def test_get_resource_decoding_depth_is_bounded(self, depth: int, template if depth <= 32 and not name.startswith("../"): assert resource is not None assert resource.name == name - client.read_resource.assert_awaited_once_with(AnyUrl(root + name)) + client.read_resource.assert_awaited_once_with(root + name) else: assert resource is None client.read_resource.assert_not_called() @@ -558,6 +573,139 @@ def test_requires_exactly_one_of_client_or_session_provider(self) -> None: class TestMCPSkillsSource: """Tests for MCPSkillsSource.""" + async def test_high_level_client_reads_resources_with_cache(self) -> None: + from mcp import Client + from mcp.server import Server, ServerRequestContext + from mcp.types import ReadResourceRequestParams + + responses = { + "skill://index.json": _make_text_result(SAMPLE_SKILL_INDEX, uri="skill://index.json"), + "skill://unit-converter/SKILL.md": _make_text_result(SAMPLE_SKILL_MD), + } + + async def read_resource( + _ctx: ServerRequestContext[Any], + params: ReadResourceRequestParams, + ) -> ReadResourceResult: + return responses[str(params.uri)] + + server = Server("skills-server", on_read_resource=read_resource) + + async with Client(server) as client: + read_resource_mock = AsyncMock(wraps=client.read_resource) + with patch.object(client, "read_resource", read_resource_mock): + source = MCPSkillsSource(client=client) + skill = (await source.get_skills(_SOURCE_CTX))[0] + content = await skill.get_content() + + assert content == SAMPLE_SKILL_MD + assert read_resource_mock.await_args_list == [ + call("skill://index.json", cache_mode="use"), + call("skill://unit-converter/SKILL.md", cache_mode="use"), + ] + + async def test_high_level_client_honors_positive_resource_ttl(self) -> None: + from mcp import Client + from mcp.server import Server, ServerRequestContext + from mcp.types import ReadResourceRequestParams + + read_counts: dict[str, int] = {} + + async def read_resource( + _ctx: ServerRequestContext[Any], + params: ReadResourceRequestParams, + ) -> ReadResourceResult: + uri = str(params.uri) + read_counts[uri] = read_counts.get(uri, 0) + 1 + if uri == "skill://index.json": + return ReadResourceResult( + contents=[TextResourceContents(uri=uri, text=SAMPLE_SKILL_INDEX, mime_type="application/json")], + ttl_ms=60_000, + ) + return ReadResourceResult( + contents=[TextResourceContents(uri=uri, text=SAMPLE_SKILL_MD, mime_type="text/markdown")], + ttl_ms=60_000, + ) + + server = Server("cached-skills-server", on_read_resource=read_resource) + + async with Client(server) as client: + for _ in range(2): + source = MCPSkillsSource(client=client) + skill = (await source.get_skills(_SOURCE_CTX))[0] + assert await skill.get_content() == SAMPLE_SKILL_MD + + assert read_counts == { + "skill://index.json": 1, + "skill://unit-converter/SKILL.md": 1, + } + + async def test_high_level_client_drives_state_only_mrtr_for_skill_resource(self) -> None: + from mcp import Client + from mcp.server import Server, ServerRequestContext + from mcp.types import InputRequiredResult, ReadResourceRequestParams + + calls: list[tuple[int | str | None, str, str | None]] = [] + + async def read_resource( + ctx: ServerRequestContext[Any], + params: ReadResourceRequestParams, + ) -> ReadResourceResult | InputRequiredResult: + uri = str(params.uri) + if uri == "skill://index.json": + return _make_text_result(SAMPLE_SKILL_INDEX, uri=uri) + calls.append((ctx.request_id, uri, params.request_state)) + if params.request_state is None: + return InputRequiredResult(request_state="opaque-resource-state") + return _make_text_result(SAMPLE_SKILL_MD, uri=uri) + + server = Server("mrtr-skills-server", on_read_resource=read_resource) + + async with Client(server) as client: + source = MCPSkillsSource(client=client) + skill = (await source.get_skills(_SOURCE_CTX))[0] + content = await skill.get_content() + + assert content == SAMPLE_SKILL_MD + assert [(uri, state) for _, uri, state in calls] == [ + ("skill://unit-converter/SKILL.md", None), + ("skill://unit-converter/SKILL.md", "opaque-resource-state"), + ] + assert calls[0][0] is not None + assert calls[1][0] is not None + assert calls[0][0] != calls[1][0] + + async def test_connection_provider_follows_replacement_high_level_client(self) -> None: + from mcp import Client + from mcp.server import Server, ServerRequestContext + from mcp.types import ReadResourceRequestParams + + def server_with_body(name: str, body: str) -> Server: + async def read_resource( + _ctx: ServerRequestContext[Any], + params: ReadResourceRequestParams, + ) -> ReadResourceResult: + uri = str(params.uri) + if uri == "skill://index.json": + return _make_text_result(SAMPLE_SKILL_INDEX, uri=uri) + return _make_text_result(f"# {name}\n{body}", uri=uri) + + return Server(name, on_read_resource=read_resource) + + async with ( + Client(server_with_body("old-skills", "old body")) as old_client, + Client(server_with_body("new-skills", "new body")) as new_client, + ): + current = {"client": old_client} + source = MCPSkillsSource(session_provider=lambda: current["client"]) + skill = (await source.get_skills(_SOURCE_CTX))[0] + + current["client"] = new_client + content = await skill.get_content() + + assert "new body" in content + assert "old body" not in content + @pytest.mark.parametrize( "uri", [ @@ -646,7 +794,15 @@ async def test_missing_required_fields_is_skipped(self) -> None: skills = await source.get_skills(_SOURCE_CTX) assert skills == [] - async def test_archive_missing_resource_is_skipped(self) -> None: + @pytest.mark.parametrize( + "resource_not_found_error", + _RESOURCE_NOT_FOUND_ERRORS, + ids=["legacy-shape", "modern-shape"], + ) + async def test_archive_missing_resource_is_skipped( + self, + resource_not_found_error: Callable[[str], MCPError], + ) -> None: # An archive entry whose archive resource is not available on the server # is skipped (the index is read, but the archive download fails). index_json = json.dumps({ @@ -660,7 +816,10 @@ async def test_archive_missing_resource_is_skipped(self) -> None: } ], }) - client = _make_client(**{"skill://index.json": _make_text_result(index_json, uri="skill://index.json")}) + client = _make_client( + resource_not_found_error, + **{"skill://index.json": _make_text_result(index_json, uri="skill://index.json")}, + ) source = MCPSkillsSource(client=client) skills = await source.get_skills(_SOURCE_CTX) assert skills == [] @@ -752,73 +911,86 @@ def test_requires_exactly_one_of_client_or_session_provider(self) -> None: # --------------------------------------------------------------------------- -# McpError code branching tests +# MCPError code branching tests # --------------------------------------------------------------------------- class TestMCPSkillsSourceErrorCodeBranching: - """Tests that MCPSkillsSource and MCPSkill branch on McpError.error.code. + """Tests that MCPSkillsSource and MCPSkill branch on MCPError.error.code. - Only "not found" codes (RESOURCE_NOT_FOUND -32002, METHOD_NOT_FOUND -32601) - should be silently swallowed as "no skills available." Other McpError codes - and non-McpError exceptions must propagate so that auth failures, server - crashes, and connection drops are visible. + The legacy -32002 code, METHOD_NOT_FOUND, and INVALID_PARAMS carrying the + exact requested URI mean the resource is absent. Other MCPError shapes and + non-MCPError exceptions must propagate so failures remain visible. """ async def test_index_method_not_found_returns_empty(self) -> None: """METHOD_NOT_FOUND (-32601) -> server doesn't support resources/read.""" client = AsyncMock() - client.read_resource = AsyncMock(side_effect=McpError(error=ErrorData(code=-32601, message="Method not found"))) + client.read_resource = AsyncMock(side_effect=MCPError(-32601, "Method not found")) source = MCPSkillsSource(client=client) skills = await source.get_skills(_SOURCE_CTX) assert skills == [] - async def test_index_resource_not_found_returns_empty(self) -> None: - """MCP-spec "Resource not found" (-32002) -> server has no index.""" - client = AsyncMock() - client.read_resource = AsyncMock( - side_effect=McpError(error=ErrorData(code=-32002, message="Resource not found")) - ) + @pytest.mark.parametrize( + "resource_not_found_error", + _RESOURCE_NOT_FOUND_ERRORS, + ids=["legacy-shape", "modern-shape"], + ) + async def test_index_resource_not_found_returns_empty( + self, + resource_not_found_error: Callable[[str], MCPError], + ) -> None: + """Either valid missing-resource error shape means the server has no skill index.""" + client = _make_client(resource_not_found_error) source = MCPSkillsSource(client=client) skills = await source.get_skills(_SOURCE_CTX) assert skills == [] - async def test_index_invalid_params_propagates(self) -> None: - """INVALID_PARAMS (-32602) is a real bug, must propagate (not "not found").""" + @pytest.mark.parametrize( + "data", + [ + None, + {"uri": "skill://index.json", "reason": "malformed request"}, + ], + ids=["no-uri", "extra-error-data"], + ) + async def test_index_invalid_params_propagates( + self, + data: dict[str, str] | None, + ) -> None: + """INVALID_PARAMS propagates unless its data identifies the requested URI.""" client = AsyncMock() - client.read_resource = AsyncMock(side_effect=McpError(error=ErrorData(code=-32602, message="Invalid params"))) + client.read_resource = AsyncMock(side_effect=MCPError(INVALID_PARAMS, "Invalid params", data)) source = MCPSkillsSource(client=client) - with pytest.raises(McpError): + with pytest.raises(MCPError): await source.get_skills(_SOURCE_CTX) async def test_index_internal_error_propagates(self) -> None: """INTERNAL_ERROR (-32603) must propagate, not silently return empty.""" client = AsyncMock() - client.read_resource = AsyncMock(side_effect=McpError(error=ErrorData(code=-32603, message="Internal error"))) + client.read_resource = AsyncMock(side_effect=MCPError(-32603, "Internal error")) source = MCPSkillsSource(client=client) - with pytest.raises(McpError): + with pytest.raises(MCPError): await source.get_skills(_SOURCE_CTX) async def test_index_connection_closed_propagates(self) -> None: """CONNECTION_CLOSED (-32000) must propagate.""" client = AsyncMock() - client.read_resource = AsyncMock( - side_effect=McpError(error=ErrorData(code=-32000, message="Connection closed")) - ) + client.read_resource = AsyncMock(side_effect=MCPError(-32000, "Connection closed")) source = MCPSkillsSource(client=client) - with pytest.raises(McpError): + with pytest.raises(MCPError): await source.get_skills(_SOURCE_CTX) async def test_index_generic_error_code_propagates(self) -> None: """Generic handler error (code 0) must propagate.""" client = AsyncMock() - client.read_resource = AsyncMock(side_effect=McpError(error=ErrorData(code=0, message="Some handler error"))) + client.read_resource = AsyncMock(side_effect=MCPError(0, "Some handler error")) source = MCPSkillsSource(client=client) - with pytest.raises(McpError): + with pytest.raises(MCPError): await source.get_skills(_SOURCE_CTX) async def test_index_non_mcp_error_propagates(self) -> None: - """Non-McpError exceptions (connection drop, timeout) must propagate.""" + """Non-MCPError exceptions (connection drop, timeout) must propagate.""" client = AsyncMock() client.read_resource = AsyncMock(side_effect=ConnectionError("connection lost")) source = MCPSkillsSource(client=client) @@ -826,24 +998,29 @@ async def test_index_non_mcp_error_propagates(self) -> None: await source.get_skills(_SOURCE_CTX) async def test_get_resource_internal_error_propagates(self) -> None: - """McpError with INTERNAL_ERROR on get_resource must propagate.""" + """MCPError with INTERNAL_ERROR on get_resource must propagate.""" from agent_framework import SkillFrontmatter client = AsyncMock() - client.read_resource = AsyncMock(side_effect=McpError(error=ErrorData(code=-32603, message="Server crashed"))) + client.read_resource = AsyncMock(side_effect=MCPError(-32603, "Server crashed")) fm = SkillFrontmatter(name="test-skill", description="Test.") skill = MCPSkill(frontmatter=fm, skill_md_uri="skill://test/SKILL.md", client=client) - with pytest.raises(McpError): + with pytest.raises(MCPError): await skill.get_resource("references/file.md") - async def test_get_resource_not_found_returns_none(self) -> None: - """McpError with RESOURCE_NOT_FOUND (-32002) on get_resource returns None.""" + @pytest.mark.parametrize( + "resource_not_found_error", + _RESOURCE_NOT_FOUND_ERRORS, + ids=["legacy-shape", "modern-shape"], + ) + async def test_get_resource_not_found_returns_none( + self, + resource_not_found_error: Callable[[str], MCPError], + ) -> None: + """Either valid missing-resource error shape on get_resource returns None.""" from agent_framework import SkillFrontmatter - client = AsyncMock() - client.read_resource = AsyncMock( - side_effect=McpError(error=ErrorData(code=-32002, message="Resource not found")) - ) + client = _make_client(resource_not_found_error) fm = SkillFrontmatter(name="test-skill", description="Test.") skill = MCPSkill(frontmatter=fm, skill_md_uri="skill://test/SKILL.md", client=client) result = await skill.get_resource("references/file.md") @@ -872,14 +1049,14 @@ async def test_get_resource_timeout_error_propagates(self) -> None: await skill.get_resource("references/file.md") async def test_get_resource_generic_mcp_error_propagates(self) -> None: - """McpError with a generic code (0) on get_resource must propagate.""" + """MCPError with a generic code (0) on get_resource must propagate.""" from agent_framework import SkillFrontmatter client = AsyncMock() - client.read_resource = AsyncMock(side_effect=McpError(error=ErrorData(code=0, message="Handler error"))) + client.read_resource = AsyncMock(side_effect=MCPError(0, "Handler error")) fm = SkillFrontmatter(name="test-skill", description="Test.") skill = MCPSkill(frontmatter=fm, skill_md_uri="skill://test/SKILL.md", client=client) - with pytest.raises(McpError): + with pytest.raises(MCPError): await skill.get_resource("references/file.md") async def test_index_timeout_error_propagates(self) -> None: @@ -939,7 +1116,7 @@ def _archive_client(index_json: str, archive_url: str, archive_bytes: bytes, mim """Build a mock client that serves the index and a single archive blob resource.""" return _make_client(**{ "skill://index.json": _make_text_result(index_json, uri="skill://index.json"), - str(AnyUrl(archive_url)): _make_blob_result(archive_bytes, uri=archive_url, mime_type=mime_type), + archive_url: _make_blob_result(archive_bytes, uri=archive_url, mime_type=mime_type), }) @@ -1279,17 +1456,17 @@ async def test_archive_download_internal_error_propagates(self) -> None: url = "skill://archives/packaged-skill.zip" index = _make_archive_index("packaged-skill", url) - async def _read_resource(uri: AnyUrl) -> ReadResourceResult: + async def _read_resource(uri: str) -> ReadResourceResult: uri_str = str(uri) if uri_str == "skill://index.json": return _make_text_result(index, uri="skill://index.json") - raise McpError(error=ErrorData(code=-32603, message="Internal error")) + raise MCPError(-32603, "Internal error") client = AsyncMock() client.read_resource = AsyncMock(side_effect=_read_resource) source = MCPSkillsSource(client=client) - with pytest.raises(McpError): + with pytest.raises(MCPError): await source.get_skills(_SOURCE_CTX) async def test_archive_download_connection_error_propagates(self) -> None: @@ -1297,7 +1474,7 @@ async def test_archive_download_connection_error_propagates(self) -> None: url = "skill://archives/packaged-skill.zip" index = _make_archive_index("packaged-skill", url) - async def _read_resource(uri: AnyUrl) -> ReadResourceResult: + async def _read_resource(uri: str) -> ReadResourceResult: uri_str = str(uri) if uri_str == "skill://index.json": return _make_text_result(index, uri="skill://index.json") @@ -1333,7 +1510,7 @@ async def test_mixed_skill_md_and_archive_entries(self) -> None: client = _make_client(**{ "skill://index.json": _make_text_result(index, uri="skill://index.json"), "skill://unit-converter/SKILL.md": _make_text_result(SAMPLE_SKILL_MD), - str(AnyUrl(archive_url)): _make_blob_result(archive, uri=archive_url, mime_type="application/zip"), + archive_url: _make_blob_result(archive, uri=archive_url, mime_type="application/zip"), }) source = MCPSkillsSource(client=client) @@ -1635,7 +1812,7 @@ async def test_skill_md_digest_does_not_change_lazy_discovery(self, digest: obje assert len(skills) == 1 assert isinstance(skills[0], MCPSkill) - client.read_resource.assert_awaited_once_with(AnyUrl("skill://index.json")) + client.read_resource.assert_awaited_once_with("skill://index.json") @pytest.mark.parametrize("refresh_failure", ["digest", "transport"]) async def test_cache_refresh_handles_verification_and_transport_failures( @@ -1652,7 +1829,7 @@ async def test_cache_refresh_handles_verification_and_transport_failures( first = await source.get_skills(_SOURCE_CTX) assert len(first) == 1 assert await source.get_skills(_SOURCE_CTX) is first - client.read_resource.assert_any_await(AnyUrl(url)) + client.read_resource.assert_any_await(url) assert client.read_resource.await_count == 2 tampered = _make_zip({ diff --git a/python/packages/core/tests/core/test_optional_dependencies.py b/python/packages/core/tests/core/test_optional_dependencies.py index 0e6e8cc3429..bb1463baab1 100644 --- a/python/packages/core/tests/core/test_optional_dependencies.py +++ b/python/packages/core/tests/core/test_optional_dependencies.py @@ -2,7 +2,9 @@ from __future__ import annotations +import subprocess import sys +from textwrap import dedent import pytest @@ -63,29 +65,45 @@ def test_configure_otel_providers_requires_otel_sdk(monkeypatch: pytest.MonkeyPa observability.configure_otel_providers() -def test_agent_framework_mcp_exports_remain_importable_without_mcp(monkeypatch: pytest.MonkeyPatch) -> None: - import builtins +def test_agent_framework_mcp_exports_remain_importable_without_mcp() -> None: + result = subprocess.run( + [ + sys.executable, + "-c", + dedent( + """ + import builtins + import sys - import agent_framework._mcp as mcp_module + real_import = builtins.__import__ - real_import = builtins.__import__ + def import_without_mcp(name, globals=None, locals=None, fromlist=(), level=0): + if name == "mcp" or name.startswith("mcp."): + raise ModuleNotFoundError("No module named 'mcp'", name=name) + return real_import(name, globals, locals, fromlist, level) - def _import_without_mcp( - name: str, - globals_: dict[str, object] | None = None, - locals_: dict[str, object] | None = None, - fromlist: tuple[str, ...] = (), - level: int = 0, - ) -> object: - if name == "mcp" or name.startswith("mcp."): - raise ModuleNotFoundError("No module named 'mcp'") - return real_import(name, globals_, locals_, fromlist, level) + builtins.__import__ = import_without_mcp - monkeypatch.setattr(builtins, "__import__", _import_without_mcp) - assert agent_framework.MCPStdioTool is mcp_module.MCPStdioTool + import agent_framework - with pytest.raises(ModuleNotFoundError, match=r"Please install `mcp`\.$"): - agent_framework.MCPStdioTool(name="test", command="python").get_mcp_client() + tool_type = agent_framework.MCPStdioTool + assert "mcp" not in sys.modules + + try: + tool_type(name="test", command="python").get_mcp_client() + except ModuleNotFoundError as exc: + assert str(exc).endswith("Please install `mcp`.") + else: + raise AssertionError("get_mcp_client() unexpectedly succeeded without mcp") + """ + ), + ], + capture_output=True, + text=True, + check=False, + ) + + assert result.returncode == 0, result.stderr or result.stdout def test_mcp_streamable_http_tool_requires_mcp(monkeypatch: pytest.MonkeyPatch) -> None: @@ -132,50 +150,3 @@ def _import_without_mcp( with pytest.raises(ModuleNotFoundError, match=r"Please install `mcp`\.$"): agent.as_mcp_server() - - -def test_mcp_websocket_tool_requires_ws_support(monkeypatch: pytest.MonkeyPatch) -> None: - import builtins - - real_import = builtins.__import__ - - sys.modules.pop("mcp.client.websocket", None) - - def _import_without_websocket_support( - name: str, - globals_: dict[str, object] | None = None, - locals_: dict[str, object] | None = None, - fromlist: tuple[str, ...] = (), - level: int = 0, - ) -> object: - if name == "mcp.client.websocket": - raise ModuleNotFoundError("No module named 'websockets'", name="websockets") - return real_import(name, globals_, locals_, fromlist, level) - - monkeypatch.setattr(builtins, "__import__", _import_without_websocket_support) - - with pytest.raises(ModuleNotFoundError, match=r"mcp\[ws\]"): - agent_framework.MCPWebsocketTool(name="test", url="wss://example.com").get_mcp_client() - - -def test_mcp_websocket_tool_requires_mcp(monkeypatch: pytest.MonkeyPatch) -> None: - import builtins - - real_import = builtins.__import__ - sys.modules.pop("mcp.client.websocket", None) - - def _import_without_mcp( - name: str, - globals_: dict[str, object] | None = None, - locals_: dict[str, object] | None = None, - fromlist: tuple[str, ...] = (), - level: int = 0, - ) -> object: - if name == "mcp.client.websocket": - raise ModuleNotFoundError("No module named 'mcp.client.websocket'", name="mcp.client.websocket") - return real_import(name, globals_, locals_, fromlist, level) - - monkeypatch.setattr(builtins, "__import__", _import_without_mcp) - - with pytest.raises(ModuleNotFoundError, match=r"agent-framework-core\[mcp\]|mcp\[ws\]"): - agent_framework.MCPWebsocketTool(name="test", url="wss://example.com").get_mcp_client() diff --git a/python/packages/core/tests/core/test_types.py b/python/packages/core/tests/core/test_types.py index ee936e3f9c2..fe4f5dc11c5 100644 --- a/python/packages/core/tests/core/test_types.py +++ b/python/packages/core/tests/core/test_types.py @@ -1371,6 +1371,25 @@ def test_chat_message_text(): assert isinstance(message.contents[0], Content) +@pytest.mark.parametrize( + "message", + [Message("user", "Hello, how are you?"), Message(role="user", contents="Hello, how are you?")], + ids=["positional", "keyword"], +) +def test_chat_message_with_single_string_contents(message: Message) -> None: + """A bare string is one text content, not a sequence of single-character contents.""" + assert len(message.contents) == 1 + assert message.contents[0].type == "text" + assert message.text == "Hello, how are you?" + + +def test_chat_message_with_empty_string_contents() -> None: + message = Message("user", "") + + assert len(message.contents) == 1 + assert message.text == "" + + def test_chat_message_contents(): """Test the Message class to ensure it initializes correctly with contents.""" # Create a Message with a role and multiple contents @@ -4705,6 +4724,77 @@ def test_function_result_items_roundtrip_via_dict(): assert restored.items[1].type == "data" +@pytest.mark.parametrize("serialization", ["dict", "dict_with_none", "json"]) +def test_tool_result_nested_content_roundtrips(serialization: str): + """Test that nested Content in image generation and MCP server tool results survives a round trip.""" + image = Content.from_uri("data:image/png;base64,iVBORw0KGgo=") + output = [ + Content.from_text("42", annotations=[{"type": "citation", "url": "https://example.com/source"}]), + Content.from_uri("https://example.com/report.pdf", media_type="application/pdf"), + Content.from_hosted_file("file_1"), + Content.from_function_result(call_id="call_1", result=[Content.from_text("done")]), + ] + message = Message( + "assistant", + [ + Content.from_image_generation_tool_result(image_id="ig_1", outputs=image), + Content.from_mcp_server_tool_result("mcp_1", output=output), + ], + ) + + if serialization == "dict": + restored = Message.from_dict(message.to_dict()) + elif serialization == "dict_with_none": + restored = Message.from_dict(message.to_dict(exclude_none=False)) + else: + restored = Message.from_json(message.to_json()) + restored_image, restored_mcp = restored.contents + + assert isinstance(restored_image.outputs, Content) + assert restored_image.outputs == image + assert restored_mcp.output is not None + assert all(isinstance(item, Content) for item in restored_mcp.output) + assert restored_mcp.output == output + + +@pytest.mark.parametrize( + "tool_json", + [ + {"type": "text", "value": 1}, + {"type": "text", "text": "x"}, + {"type": "data", "data": "AAAA", "media_type": "image/png"}, + {"type": "text", "text": "x", "annotations": {"audience": ["user"]}}, + {"type": "text", "function_call": {"a": 1}}, + ], + ids=["unknown_field", "text_shape", "data_with_str_data", "mcp_annotations", "invalid_nested_content"], +) +def test_tool_result_json_with_content_type_name_roundtrips(tool_json: dict[str, Any]): + """Test that tool JSON whose type is a content type name is kept as it is in a round trip.""" + mcp_result = Content.from_mcp_server_tool_result("mcp_1", output=[Content.from_text("42"), tool_json]) + image_result = Content.from_image_generation_tool_result(image_id="ig_1", outputs=tool_json) + + restored_mcp = Content.from_dict(mcp_result.to_dict()) + restored_image = Content.from_dict(image_result.to_dict()) + + assert restored_mcp.output == [Content.from_text("42"), tool_json] + assert isinstance(restored_mcp.output[1], dict) + assert restored_image.outputs == tool_json + assert restored_mcp.to_dict()["output"][1] == tool_json + assert restored_image.to_dict()["outputs"] == tool_json + + +def test_tool_result_plain_outputs_roundtrip_via_dict(): + """Test that output values that are not serialized Content stay unchanged in a round trip.""" + output = ["plain", {"type": "object", "value": 1}, {"type": ["x"]}, {"answer": 42}] + mcp_result = Content.from_mcp_server_tool_result("mcp_1", output=output) + image_result = Content.from_image_generation_tool_result( + image_id="ig_1", outputs={"url": "https://example.com/a.png"} + ) + + assert Content.from_dict(mcp_result.to_dict()).output == output + assert Content.from_dict(image_result.to_dict()).outputs == {"url": "https://example.com/a.png"} + + def test_from_function_result_with_non_content_list(): """Test Content.from_function_result with a list of non-Content objects falls back to str.""" result = Content.from_function_result(call_id="test-789", result=["hello", "world"]) @@ -4981,6 +5071,15 @@ def test_parse_content_list_with_dicts(): assert result[0].text == "hello" +def test_parse_content_list_with_single_string(): + """Test _parse_content_list treats a bare string as one text item, not one per character.""" + result = _parse_content_list("hello") + + assert len(result) == 1 + assert result[0].type == "text" + assert result[0].text == "hello" + + def test_parse_content_list_with_mixed_content_and_dict(): """Test _parse_content_list handles a mix of Content objects and dicts.""" content = Content(type="text", text="hello") diff --git a/python/packages/core/tests/test_security.py b/python/packages/core/tests/test_security.py index 9bf1ff2da46..57aed63a382 100644 --- a/python/packages/core/tests/test_security.py +++ b/python/packages/core/tests/test_security.py @@ -10,7 +10,7 @@ from datetime import datetime, timedelta, timezone from types import MappingProxyType, SimpleNamespace from typing import Annotated, Any, cast -from unittest.mock import AsyncMock, Mock +from unittest.mock import AsyncMock, call import pytest from pydantic import AfterValidator, BaseModel, field_validator @@ -6141,7 +6141,7 @@ async def overlapping_call(_tool: MCPTool, tool_name: str, **_kwargs: Any) -> st async def test_headers_are_sent_only_to_the_configured_origin(self) -> None: from unittest.mock import patch - import httpx + import httpx2 as httpx from agent_framework._mcp import _MCPHeaderScopedClient from agent_framework.security import SecureMCPToolProxy @@ -6215,7 +6215,7 @@ def create_client(*_args: Any, **kwargs: Any) -> httpx.AsyncClient: client.follow_redirects = kwargs.get("follow_redirects", client.follow_redirects) return client - with patch("httpx.AsyncClient", side_effect=create_client): + with patch("httpx2.AsyncClient", side_effect=create_client): proxy = SecureMCPToolProxy( url="https://mcp.example/mcp", headers=configured_headers, @@ -6258,7 +6258,7 @@ def test_headers_require_an_absolute_http_origin(self, url: str) -> None: from agent_framework.security import SecureMCPToolProxy - with patch("httpx.AsyncClient") as create_client: + with patch("httpx2.AsyncClient") as create_client: proxy = SecureMCPToolProxy(url=url, headers={"X-Custom-Credential": "custom-value"}) with pytest.raises(ValueError, match="absolute HTTP.*URL with a host"): @@ -6303,7 +6303,7 @@ def test_map_mcp_annotations_to_labels( annotations = None if read_only is not None or open_world is not None: - annotations = SimpleNamespace(readOnlyHint=read_only, openWorldHint=open_world) + annotations = SimpleNamespace(read_only_hint=read_only, open_world_hint=open_world) integrity, max_conf, accepts_untrusted = _map_mcp_annotations_to_labels( annotations, @@ -6345,11 +6345,12 @@ async def fake_call(**kwargs: Any) -> list[Content]: ) mcp_tool = MCPTool(name="helper") # type: ignore[abstract] # ty: ignore[call-non-callable] mcp_tool.is_connected = True - mcp_tool.session = AsyncMock() - mcp_tool.session.list_tools = AsyncMock( # type: ignore[method-assign] + mock_session = AsyncMock() + mcp_tool.session = mock_session + mock_session.list_tools = AsyncMock( # type: ignore[method-assign] return_value=SimpleNamespace( tools=[SimpleNamespace(name="remote_tool", annotations=annotations)], - nextCursor=None, + next_cursor=None, ) ) mcp_tool.functions.append(function) @@ -6362,8 +6363,8 @@ def _make_mcp_tool_definition(name: str, *, open_world: bool = False) -> Any: return mcp_types.Tool( name=name, description=f"{name} description", - inputSchema={"type": "object", "properties": {}}, - annotations=mcp_types.ToolAnnotations(readOnlyHint=False, openWorldHint=open_world), + input_schema={"type": "object", "properties": {}}, + annotations=mcp_types.ToolAnnotations(read_only_hint=False, open_world_hint=open_world), ) @@ -6390,8 +6391,9 @@ def get_mcp_client(self): always_load=always_load, ) mcp_tool.is_connected = True - mcp_tool.session = AsyncMock() - mcp_tool.session.call_tool = AsyncMock( + mock_session = AsyncMock() + mcp_tool.session = mock_session + mock_session.call_tool = AsyncMock( return_value=mcp_types.CallToolResult( content=[mcp_types.TextContent(type="text", text="payload")], _meta=result_meta or {"ifc": {"integrity": "trusted", "confidentiality": "private"}}, @@ -6775,8 +6777,8 @@ async def fake_call(**kwargs: Any) -> list[Content]: async def test_wrap_mcp_function_reads_refreshed_local_policy_at_invocation(self): from agent_framework.security import SecureMCPToolProxy - trusted_annotations = SimpleNamespace(readOnlyHint=True, openWorldHint=False) - untrusted_annotations = SimpleNamespace(readOnlyHint=True, openWorldHint=True) + trusted_annotations = SimpleNamespace(read_only_hint=True, open_world_hint=False) + untrusted_annotations = SimpleNamespace(read_only_hint=True, open_world_hint=True) server_meta = {"ifc": {"integrity": "trusted", "confidentiality": "public"}} mcp_tool, function = _make_connected_mcp_tool_for_ifc( annotations=trusted_annotations, @@ -6785,10 +6787,10 @@ async def test_wrap_mcp_function_reads_refreshed_local_policy_at_invocation(self ) mcp_tool.session.list_tools.side_effect = [ SimpleNamespace( - tools=[SimpleNamespace(name="remote_tool", annotations=trusted_annotations)], nextCursor=None + tools=[SimpleNamespace(name="remote_tool", annotations=trusted_annotations)], next_cursor=None ), SimpleNamespace( - tools=[SimpleNamespace(name="remote_tool", annotations=untrusted_annotations)], nextCursor=None + tools=[SimpleNamespace(name="remote_tool", annotations=untrusted_annotations)], next_cursor=None ), ] proxy = SecureMCPToolProxy(mcp_tool, default_integrity=IntegrityLabel.TRUSTED) @@ -6888,7 +6890,7 @@ async def fake_call(**kwargs: Any) -> list[Content]: async def test_apply_mcp_security_labels_configures_result_authority(self, trust_server_ifc: bool): from agent_framework.security import apply_mcp_security_labels - annotations = SimpleNamespace(readOnlyHint=True, openWorldHint=False) + annotations = SimpleNamespace(read_only_hint=True, open_world_hint=False) server_meta = { "ifc": {"integrity": "trusted", "confidentiality": "public"}, "_mcp_trust_server_ifc": True, @@ -6915,10 +6917,36 @@ async def test_apply_mcp_security_labels_configures_result_authority(self, trust ) assert result[0].additional_properties["security_label"] == expected_label + async def test_apply_mcp_security_labels_uses_high_level_client_connection(self) -> None: + from agent_framework._mcp import _ClientMCPConnection + from agent_framework.security import apply_mcp_security_labels + + annotations = SimpleNamespace(read_only_hint=True, open_world_hint=False) + mcp_tool, _ = _make_connected_mcp_tool_for_ifc(annotations=annotations, server_meta={}) + sdk_client = AsyncMock() + mock_session = AsyncMock() + sdk_client.session = mock_session + sdk_client.list_tools.side_effect = [ + SimpleNamespace( + tools=[SimpleNamespace(name="remote_tool", annotations=annotations)], + next_cursor="next-page", + ), + SimpleNamespace(tools=[], next_cursor=None), + ] + mcp_tool._connection = _ClientMCPConnection(sdk_client, is_framework_owned=True) + + await apply_mcp_security_labels(mcp_tool) + + assert sdk_client.list_tools.await_args_list == [ + call(cursor=None), + call(cursor="next-page"), + ] + mock_session.list_tools.assert_not_awaited() + async def test_framework_stamped_mcp_label_remains_authoritative_through_tracking(self) -> None: from agent_framework.security import apply_mcp_security_labels - annotations = SimpleNamespace(readOnlyHint=True, openWorldHint=False) + annotations = SimpleNamespace(read_only_hint=True, open_world_hint=False) server_meta = {"ifc": {"integrity": "trusted", "confidentiality": "public"}} mcp_tool, function = _make_connected_mcp_tool_for_ifc( annotations=annotations, @@ -6943,7 +6971,7 @@ async def next_fn() -> None: async def test_apply_mcp_security_labels_reconfigures_existing_wrapper_authority(self): from agent_framework.security import apply_mcp_security_labels - annotations = SimpleNamespace(readOnlyHint=True, openWorldHint=False) + annotations = SimpleNamespace(read_only_hint=True, open_world_hint=False) server_meta = {"ifc": {"integrity": "trusted", "confidentiality": "public"}} mcp_tool, function = _make_connected_mcp_tool_for_ifc(annotations=annotations, server_meta=server_meta) await apply_mcp_security_labels(mcp_tool) @@ -6967,7 +6995,7 @@ async def test_apply_mcp_security_labels_reconfigures_existing_wrapper_authority async def test_secure_mcp_proxy_configures_result_authority(self, trust_server_ifc: bool): from agent_framework.security import SecureMCPToolProxy - annotations = SimpleNamespace(readOnlyHint=True, openWorldHint=False) + annotations = SimpleNamespace(read_only_hint=True, open_world_hint=False) server_meta = {"ifc": {"integrity": "trusted", "confidentiality": "public"}} mcp_tool, function = _make_connected_mcp_tool_for_ifc(annotations=annotations, server_meta=server_meta) proxy = ( @@ -7010,9 +7038,7 @@ async def test_secure_mcp_proxy_labels_notification_reload_before_publication(se reloaded_initial_tool = _make_mcp_tool_definition("initial_sink", open_world=True) mcp_tool.session.list_tools.return_value = mcp_types.ListToolsResult(tools=[reloaded_initial_tool, late_tool]) - notification = Mock(spec=mcp_types.ServerNotification) - notification.root = Mock() - notification.root.method = "notifications/tools/list_changed" + notification = mcp_types.ToolListChangedNotification() await mcp_tool.message_handler(notification) pending_reloads = list(mcp_tool._pending_reload_tasks) diff --git a/python/packages/core/tests/workflow/test_agent_executor.py b/python/packages/core/tests/workflow/test_agent_executor.py index 7448e0d66f2..e56db14930a 100644 --- a/python/packages/core/tests/workflow/test_agent_executor.py +++ b/python/packages/core/tests/workflow/test_agent_executor.py @@ -576,6 +576,130 @@ def only_user_messages(msgs: list[Message]) -> list[Message]: assert seen[0].role == "user" and "hello" in (seen[0].text or "") +def test_ensure_trailing_user_turn_defaults_to_false() -> None: + """ensure_trailing_user_turn should default to False, preserving existing behavior.""" + agent = _CountingAgent(id="a", name="A") + executor = AgentExecutor(agent) + assert executor._ensure_trailing_user_turn is False # pyright: ignore[reportPrivateUsage] + + +def test_build_invocation_messages_noop_when_flag_disabled() -> None: + """When the flag is off, the returned messages match the cache without modification.""" + agent = _CountingAgent(id="a", name="A") + executor = AgentExecutor(agent, ensure_trailing_user_turn=False) + executor._cache = [ + Message(role="user", contents=["go"]), + Message(role="assistant", contents=["W-OK"]), + ] + messages = executor._build_invocation_messages() + assert len(messages) == 2 + assert messages[-1].role == "assistant" + assert len(executor._cache) == 2 + + +def test_build_invocation_messages_noop_when_cache_not_assistant_ending() -> None: + """When the flag is on but the cache already ends on user/tool, nothing is appended.""" + agent = _CountingAgent(id="a", name="A") + executor = AgentExecutor(agent, ensure_trailing_user_turn=True) + executor._cache = [ + Message(role="user", contents=["go"]), + Message(role="assistant", contents=["W-OK"]), + Message(role="user", contents=["continue"]), + ] + messages = executor._build_invocation_messages() + assert len(messages) == 3 + assert messages[-1].role == "user" + assert len(executor._cache) == 3 + + +def test_build_invocation_messages_appends_synthetic_user_turn_when_enabled() -> None: + """When the flag is on and cache ends on assistant, a synthetic user turn is + appended to the returned copy — but the original cache is not mutated.""" + agent = _CountingAgent(id="a", name="A") + executor = AgentExecutor(agent, ensure_trailing_user_turn=True) + executor._cache = [ + Message(role="user", contents=["go"]), + Message(role="assistant", contents=["W-OK"]), + ] + messages = executor._build_invocation_messages() + assert len(messages) == 3 + assert messages[-1].role == "user" + assert "please continue" in (messages[-1].text or "") + assert len(executor._cache) == 2 + assert executor._cache[-1].role == "assistant" + + +def test_build_invocation_messages_noop_when_cache_empty() -> None: + """An empty cache must not raise or append anything, even with the flag enabled.""" + agent = _CountingAgent(id="a", name="A") + executor = AgentExecutor(agent, ensure_trailing_user_turn=True) + assert executor._cache == [] + messages = executor._build_invocation_messages() + assert messages == [] + assert executor._cache == [] + + +async def test_synthetic_turn_does_not_leak_to_third_agent() -> None: + """The synthetic 'please continue.' must not appear in the third agent's + context — it is invocation-only and must not persist in full_conversation.""" + a1 = _MessageCapturingAgent(id="first", name="First", reply_text="first reply") + a2 = _MessageCapturingAgent(id="second", name="Second", reply_text="second reply") + a3 = _MessageCapturingAgent(id="third", name="Third", reply_text="third reply") + exec_a = AgentExecutor(a1, id="exec_a") + exec_b = AgentExecutor(a2, id="exec_b", context_mode="full", ensure_trailing_user_turn=True) + exec_c = AgentExecutor(a3, id="exec_c", context_mode="full") + wf = WorkflowBuilder(start_executor=exec_a).add_edge(exec_a, exec_b).add_edge(exec_b, exec_c).build() + async for ev in wf.run("hello", stream=True): + if ev.type == "status" and ev.state == WorkflowRunState.IDLE: + break + seen = a3.last_messages + assert len(seen) == 3 + for msg in seen: + assert "please continue" not in (msg.text or "") + + +async def test_from_response_ensure_trailing_user_turn_end_to_end_full_mode() -> None: + """chained full mode context should get a synthetic trailing user turn before the second agent runs, + when the flag is enabled.""" + + first = _MessageCapturingAgent(id="first", name="First", reply_text="first reply") + second = _MessageCapturingAgent(id="second", name="Second", reply_text="second reply") + + exec_a = AgentExecutor(first, id="exec_a") + exec_b = AgentExecutor(second, id="exec_b", context_mode="full", ensure_trailing_user_turn=True) + + wf = WorkflowBuilder(start_executor=exec_a).add_edge(exec_a, exec_b).build() + + async for ev in wf.run("hello", stream=True): + if ev.type == "status" and ev.state == WorkflowRunState.IDLE: + break + + seen = second.last_messages + assert len(seen) == 3 + assert seen[0].role == "user" and "hello" in (seen[0].text or "") + assert seen[1].role == "assistant" and "first reply" in (seen[1].text or "") + assert seen[2].role == "user" + + +async def test_from_response_without_ensure_trailing_user_turn_still_ends_on_assistant() -> None: + """Default (flag off) behavior is unchanged: chained context still ends on assistant.""" + first = _MessageCapturingAgent(id="first", name="First", reply_text="first reply") + second = _MessageCapturingAgent(id="second", name="Second", reply_text="second reply") + + exec_a = AgentExecutor(first, id="exec_a") + exec_b = AgentExecutor(second, id="exec_b", context_mode="full") + + wf = WorkflowBuilder(start_executor=exec_a).add_edge(exec_a, exec_b).build() + + async for ev in wf.run("hello", stream=True): + if ev.type == "status" and ev.state == WorkflowRunState.IDLE: + break + + seen = second.last_messages + assert len(seen) == 2 + assert seen[-1].role == "assistant" + + async def test_checkpoint_save_does_not_include_context_mode() -> None: """on_checkpoint_save should not include context_mode in the saved state.""" agent = _CountingAgent(id="a", name="A") diff --git a/python/packages/core/tests/workflow/test_functional_workflow.py b/python/packages/core/tests/workflow/test_functional_workflow.py index 1d12399a7e4..59e4019b5df 100644 --- a/python/packages/core/tests/workflow/test_functional_workflow.py +++ b/python/packages/core/tests/workflow/test_functional_workflow.py @@ -9,7 +9,7 @@ import json import logging from collections.abc import Awaitable, Callable, Generator -from contextlib import contextmanager +from contextlib import contextmanager, suppress from dataclasses import dataclass from types import FunctionType from typing import Any, cast, overload @@ -1864,6 +1864,77 @@ async def wf(value: int) -> int: finally: loop.set_task_factory(original_factory) + @pytest.mark.skipif(not hasattr(asyncio, "eager_task_factory"), reason="Eager task factory is Python >= 3.12") + async def test_eager_task_factory_preserves_concurrent_replay_guard(self): + import threading + + loop = asyncio.get_running_loop() + original_factory = loop.get_task_factory() + calls = 0 + + @step + async def use_lock(lock: threading.Lock) -> str: + nonlocal calls + calls += 1 + return "done" + + @built_workflow + async def wf(_: str) -> str: + return (await asyncio.gather(use_lock(threading.Lock())))[0] + + loop.set_task_factory(cast(Any, asyncio).eager_task_factory) + try: + with pytest.raises(ValueError, match="replay_key"): + await wf.run("input") + finally: + loop.set_task_factory(original_factory) + + assert calls == 0 + + @pytest.mark.skipif(not hasattr(asyncio, "eager_task_factory"), reason="Eager task factory is Python >= 3.12") + async def test_eager_task_factory_registers_pause_owned_child_before_step_entry(self): + loop = asyncio.get_running_loop() + original_factory = loop.get_task_factory() + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + child_started = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("continue?", int, request_id="r") + + @step(replay_key=lambda: "child") + async def child() -> None: + child_started.set() + raise RuntimeError("boom") + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + sibling_started.set() + await release_sibling.wait() + await asyncio.create_task(child()) + return "unreachable" + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), sibling())) + + loop.set_task_factory(cast(Any, asyncio).eager_task_factory) + try: + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + release_sibling.set() + + with pytest.raises(RuntimeError, match="boom"): + await asyncio.wait_for(run_task, timeout=5) + finally: + loop.set_task_factory(original_factory) + + assert child_started.is_set() + async def test_versioned_identity_precedes_unrelated_legacy_entry(self): from agent_framework import WorkflowCheckpoint @@ -2611,6 +2682,1419 @@ def emit(self, record: logging.LogRecord) -> None: class TestHITLInStepWithCaching: """Regression tests: request_info inside @step combined with caching and bypass.""" + async def test_in_flight_gather_sibling_is_cached_before_pause_snapshot(self): + storage = InMemoryCheckpointStorage() + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + sibling_calls = 0 + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "model") + async def model() -> str: + nonlocal sibling_calls + sibling_calls += 1 + sibling_started.set() + await release_sibling.wait() + return f"answer #{sibling_calls}" + + @built_workflow(checkpoint_storage=storage) + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), model())) + + initial_task = asyncio.ensure_future(wf.run(1)) + try: + await interrupting.wait() + await asyncio.sleep(0) + assert not initial_task.done() + finally: + release_sibling.set() + + paused = await initial_task + checkpoints = await storage.list_checkpoints(workflow_name="wf") + pause_checkpoint = checkpoints[-1] + resumed = await wf.run(responses={"y": 5}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert "answer #1" in pause_checkpoint.state["_step_cache"].values() + assert resumed.get_outputs() == [[5, "answer #1"]] + assert sibling_calls == 1 + + async def test_cancelling_pause_settlement_cancels_tracked_sibling(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + sibling_finished = asyncio.Event() + sibling_task: asyncio.Task[Any] | None = None + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "model") + async def model() -> str: + nonlocal sibling_task + sibling_task = asyncio.current_task() + sibling_started.set() + try: + await asyncio.Event().wait() + finally: + sibling_finished.set() + return "unreachable" + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), model())) + + run_task = asyncio.ensure_future(wf.run(1)) + try: + await asyncio.wait_for(interrupting.wait(), timeout=5) + await asyncio.sleep(0) + run_task.cancel() + + with pytest.raises(asyncio.CancelledError): + await asyncio.wait_for(run_task, timeout=5) + + await asyncio.wait_for(sibling_finished.wait(), timeout=5) + assert sibling_task is not None + assert sibling_task.cancelled() + finally: + if sibling_task is not None and not sibling_task.done(): + sibling_task.cancel() + await asyncio.gather(sibling_task, return_exceptions=True) + + async def test_unawaited_background_task_is_cancelled_before_pause_returns(self): + background_started = asyncio.Event() + background_finished = asyncio.Event() + background_task: asyncio.Task[None] | None = None + + async def background() -> None: + background_started.set() + try: + await asyncio.Event().wait() + finally: + background_finished.set() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> int: + nonlocal background_task + background_task = asyncio.create_task(background()) + await background_started.wait() + return await ctx.request_info("y?", int, request_id="y") + + try: + paused = await asyncio.wait_for(wf.run(1), timeout=1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert background_task is not None + assert background_task.cancelled() + assert background_finished.is_set() + finally: + if background_task is not None and not background_task.done(): + background_task.cancel() + await asyncio.gather(background_task, return_exceptions=True) + + async def test_detached_step_does_not_run_after_sibling_interrupts(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release = asyncio.Event() + late_finished = asyncio.Event() + late_calls = 0 + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + sibling_started.set() + await release.wait() + return "done" + + @step(replay_key=lambda: "late") + async def late() -> str: + nonlocal late_calls + late_calls += 1 + late_finished.set() + return f"late #{late_calls}" + + async def detached() -> None: + await release.wait() + await late() + + @built_workflow + async def wf(_: int) -> list[object]: + asyncio.create_task(detached()) + return list(await asyncio.gather(ask(), sibling())) + + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + await asyncio.sleep(0) + release.set() + paused = await asyncio.wait_for(run_task, timeout=5) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert late_calls == 0 + + resumed = await asyncio.wait_for(wf.run(responses={"y": 5}), timeout=5) + await asyncio.wait_for(late_finished.wait(), timeout=5) + + assert resumed.get_outputs() == [[5, "done"]] + assert late_calls == 1 + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_detached_task_cannot_mutate_state_after_swallowed_interruption(self): + background_started = asyncio.Event() + release_background = asyncio.Event() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> str: + async def background() -> None: + background_started.set() + await release_background.wait() + ctx.set_state("leaked", "yes") + + asyncio.create_task(background()) + await background_started.wait() + with suppress(asyncio.CancelledError): + await ctx.request_info("continue?", int, request_id="r") + release_background.set() + await asyncio.sleep(0) + return "ignored" + + paused = await wf.run(1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert wf._last_state == {} # pyright: ignore[reportPrivateUsage] + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_preheld_mutable_state_cannot_change_after_pause(self): + background_started = asyncio.Event() + release_background = asyncio.Event() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> list[str]: + if not ctx.get_state("background_initialized", False): + ctx.set_state("background_initialized", True) + ctx.set_state("items", []) + items = ctx.get_state("items") + + async def background() -> None: + background_started.set() + await release_background.wait() + items.append("leaked") + + asyncio.create_task(background()) + await background_started.wait() + + with suppress(asyncio.CancelledError): + await ctx.request_info("continue?", int, request_id="r") + release_background.set() + await asyncio.sleep(0) + return ctx.get_state("items") + + paused = await wf.run(1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert wf._last_state == { # pyright: ignore[reportPrivateUsage] + "background_initialized": True, + "items": [], + } + + resumed = await wf.run(responses={"r": 1}) + assert resumed.get_outputs() == [[]] + + async def test_non_deepcopyable_state_pauses_without_checkpoint_storage(self): + import threading + + lock = threading.Lock() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> str: + if ctx.get_state("lock") is None: + ctx.set_state("lock", lock) + answer = await ctx.request_info("continue?", int, request_id="r") + return f"{answer}:{ctx.get_state('lock') is lock}" + + paused = await wf.run(1) + resumed = await wf.run(responses={"r": 5}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert resumed.get_outputs() == ["5:True"] + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_nested_mutable_state_isolated_with_non_deepcopyable_leaf(self): + import threading + + background_started = asyncio.Event() + release_background = asyncio.Event() + lock = threading.Lock() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> tuple[list[str], bool]: + if ctx.get_state("bundle") is None: + items: list[str] = [] + bundle = {"items": items, "lock": lock} + ctx.set_state("bundle", bundle) + + async def background() -> None: + background_started.set() + await release_background.wait() + items.append("leaked") + + asyncio.create_task(background()) + await background_started.wait() + + with suppress(asyncio.CancelledError): + await ctx.request_info("continue?", int, request_id="r") + release_background.set() + await asyncio.sleep(0) + restored = ctx.get_state("bundle") + return restored["items"], restored["lock"] is lock + + paused = await wf.run(1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert wf._last_state["bundle"]["items"] == [] # pyright: ignore[reportPrivateUsage] + assert wf._last_state["bundle"]["lock"] is lock # pyright: ignore[reportPrivateUsage] + + resumed = await wf.run(responses={"r": 1}) + assert resumed.get_outputs() == [([], True)] + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_mutable_dict_key_isolated_with_non_deepcopyable_value(self): + import threading + + class MutableKey: + def __init__(self) -> None: + self.items: list[str] = [] + + background_started = asyncio.Event() + release_background = asyncio.Event() + key = MutableKey() + lock = threading.Lock() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> tuple[list[str], bool]: + if ctx.get_state("bundle") is None: + ctx.set_state("bundle", {key: "value", "lock": lock}) + + async def background() -> None: + background_started.set() + await release_background.wait() + key.items.append("leaked") + + asyncio.create_task(background()) + await background_started.wait() + + with suppress(asyncio.CancelledError): + await ctx.request_info("continue?", int, request_id="r") + release_background.set() + await asyncio.sleep(0) + restored = ctx.get_state("bundle") + restored_key = next(item for item in restored if isinstance(item, MutableKey)) + return restored_key.items, restored["lock"] is lock + + paused = await wf.run(1) + restored_key = next( + item + for item in wf._last_state["bundle"] # pyright: ignore[reportPrivateUsage] + if isinstance(item, MutableKey) + ) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert restored_key is not key + assert restored_key.items == [] + + resumed = await wf.run(responses={"r": 1}) + assert resumed.get_outputs() == [([], True)] + + async def test_repeated_key_with_unhashable_copy_preserves_original(self): + class HashableBadCopy: + def __deepcopy__(self, memo: dict[int, Any]) -> list[Any]: + return [] + + key = HashableBadCopy() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> bool: + if ctx.get_state("bundle") is None: + ctx.set_state("bundle", {"items": [key], "mapping": {key: "value"}}) + answer = await ctx.request_info("continue?", int, request_id="r") + assert answer == 1 + restored = ctx.get_state("bundle") + restored_key = next(iter(restored["mapping"])) + return restored["items"][0] is restored_key is key + + paused = await wf.run(1) + resumed = await wf.run(responses={"r": 1}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert resumed.get_outputs() == [True] + + async def test_tuple_alias_uses_finalized_hashable_key_snapshot(self): + class HashableBadCopy: + def __deepcopy__(self, memo: dict[int, Any]) -> list[Any]: + return [] + + key = HashableBadCopy() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> bool: + if ctx.get_state("bundle") is None: + ctx.set_state("bundle", {"items": [(key,)], "mapping": {key: "value"}}) + answer = await ctx.request_info("continue?", int, request_id="r") + assert answer == 1 + restored = ctx.get_state("bundle") + restored_key = next(iter(restored["mapping"])) + return restored["items"][0][0] is restored_key is key + + paused = await wf.run(1) + resumed = await wf.run(responses={"r": 1}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert resumed.get_outputs() == [True] + + async def test_tuple_alias_revisited_when_later_used_as_state_dict_key(self): + class HashableBadCopy: + def __deepcopy__(self, memo: dict[int, Any]) -> list[Any]: + return [] + + key = HashableBadCopy() + tuple_key = (key,) + + @built_workflow + async def wf(_: int, ctx: RunContext) -> bool: + if ctx.get_state("items") is None: + ctx.set_state("items", [tuple_key]) + ctx.set_state("mapping", {tuple_key: "value"}) + answer = await ctx.request_info("continue?", int, request_id="r") + assert answer == 1 + restored_items = ctx.get_state("items") + restored_key = next(iter(ctx.get_state("mapping"))) + return restored_items[0] is restored_key and restored_key[0] is key + + paused = await wf.run(1) + resumed = await wf.run(responses={"r": 1}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert resumed.get_outputs() == [True] + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_mutable_container_subclass_isolated_with_non_deepcopyable_leaf(self): + import threading + + class Bundle(dict[str, Any]): + lock: Any + + background_started = asyncio.Event() + release_background = asyncio.Event() + lock = threading.Lock() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> tuple[list[str], bool]: + if ctx.get_state("bundle") is None: + items: list[str] = [] + bundle = Bundle(items=items) + bundle.lock = lock + ctx.set_state("bundle", bundle) + + async def background() -> None: + background_started.set() + await release_background.wait() + items.append("leaked") + + asyncio.create_task(background()) + await background_started.wait() + + with suppress(asyncio.CancelledError): + await ctx.request_info("continue?", int, request_id="r") + release_background.set() + await asyncio.sleep(0) + restored = ctx.get_state("bundle") + return restored["items"], restored.lock is lock + + paused = await wf.run(1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert wf._last_state["bundle"]["items"] == [] # pyright: ignore[reportPrivateUsage] + + resumed = await wf.run(responses={"r": 1}) + assert resumed.get_outputs() == [([], True)] + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_custom_object_state_isolated_with_non_deepcopyable_leaf(self): + import threading + + @dataclass + class Bundle: + items: list[str] + lock: Any + + background_started = asyncio.Event() + release_background = asyncio.Event() + lock = threading.Lock() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> tuple[list[str], bool]: + if ctx.get_state("bundle") is None: + items: list[str] = [] + bundle = Bundle(items=items, lock=lock) + ctx.set_state("bundle", bundle) + + async def background() -> None: + background_started.set() + await release_background.wait() + items.append("leaked") + + asyncio.create_task(background()) + await background_started.wait() + + with suppress(asyncio.CancelledError): + await ctx.request_info("continue?", int, request_id="r") + release_background.set() + await asyncio.sleep(0) + restored = ctx.get_state("bundle") + return restored.items, restored.lock is lock + + paused = await wf.run(1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert wf._last_state["bundle"].items == [] # pyright: ignore[reportPrivateUsage] + + resumed = await wf.run(responses={"r": 1}) + assert resumed.get_outputs() == [([], True)] + + async def test_tuple_cycle_preserved_with_non_deepcopyable_leaf(self): + import threading + + lock = threading.Lock() + + @built_workflow + async def wf(_: int, ctx: RunContext) -> tuple[bool, bool]: + if ctx.get_state("cycle") is None: + cyclic_list: list[Any] = [] + cyclic_tuple = (cyclic_list, lock) + cyclic_list.append(cyclic_tuple) + ctx.set_state("cycle", cyclic_tuple) + answer = await ctx.request_info("continue?", int, request_id="r") + assert answer == 1 + restored = ctx.get_state("cycle") + return restored is restored[0][0], restored[1] is lock + + paused = await wf.run(1) + restored = wf._last_state["cycle"] # pyright: ignore[reportPrivateUsage] + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert restored is restored[0][0] + assert restored[1] is lock + + resumed = await wf.run(responses={"r": 1}) + assert resumed.get_outputs() == [(True, True)] + + async def test_pause_owned_task_cannot_mutate_state_after_step_finishes(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("continue?", int, request_id="r") + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + sibling_started.set() + await release_sibling.wait() + return "done" + + async def sibling_branch(ctx: RunContext) -> str: + result = await sibling() + ctx.set_state("leaked", "yes") + return result + + @built_workflow + async def wf(_: int, ctx: RunContext) -> list[object]: + return list(await asyncio.gather(ask(), sibling_branch(ctx))) + + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + release_sibling.set() + paused = await run_task + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert wf._last_state == {} # pyright: ignore[reportPrivateUsage] + + async def test_pause_owned_task_cannot_start_step_after_step_finishes(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + tail_finished = asyncio.Event() + tail_calls = 0 + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("continue?", int, request_id="r") + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + sibling_started.set() + await release_sibling.wait() + return "done" + + @step(replay_key=lambda: "tail") + async def tail() -> str: + nonlocal tail_calls + tail_calls += 1 + tail_finished.set() + return f"tail #{tail_calls}" + + async def sibling_branch() -> list[str]: + return [await sibling(), await tail()] + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), sibling_branch())) + + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + release_sibling.set() + paused = await run_task + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert tail_calls == 0 + + resumed = await wf.run(responses={"r": 1}) + await tail_finished.wait() + + assert resumed.get_outputs() == [[1, ["done", "tail #1"]]] + assert tail_calls == 1 + + async def test_existing_pause_owned_branch_cannot_enter_first_step(self): + branch_ready = asyncio.Event() + release_branch = asyncio.Event() + tail_finished = asyncio.Event() + tail_calls = 0 + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await branch_ready.wait() + return await ctx.request_info("continue?", int, request_id="r") + + @step(replay_key=lambda: "tail") + async def tail() -> str: + nonlocal tail_calls + tail_calls += 1 + tail_finished.set() + return f"tail #{tail_calls}" + + async def branch() -> str: + branch_ready.set() + await release_branch.wait() + return await tail() + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), branch())) + + run_task = asyncio.ensure_future(wf.run(1)) + await branch_ready.wait() + await asyncio.sleep(0) + release_branch.set() + paused = await asyncio.wait_for(run_task, timeout=5) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert tail_calls == 0 + + resumed = await wf.run(responses={"r": 1}) + await tail_finished.wait() + + assert resumed.get_outputs() == [[1, "tail #1"]] + assert tail_calls == 1 + + async def test_handled_task_failure_does_not_replace_pause(self): + async def fail() -> None: + raise ValueError("handled") + + @built_workflow + async def wf(_: int, ctx: RunContext) -> int: + outcome = (await asyncio.gather(fail(), return_exceptions=True))[0] + assert isinstance(outcome, ValueError) + return await ctx.request_info("y?", int, request_id="y") + + paused = await wf.run(1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + + async def test_concurrent_handled_step_failure_does_not_replace_pause(self): + ask_started = asyncio.Event() + fail_started = asyncio.Event() + release = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + ask_started.set() + await fail_started.wait() + await release.wait() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "fail") + async def fail() -> None: + fail_started.set() + await ask_started.wait() + await release.wait() + raise RuntimeError("handled") + + @built_workflow + async def wf(_: int) -> list[object]: + tasks = asyncio.gather(ask(), fail(), return_exceptions=True) + await ask_started.wait() + await fail_started.wait() + release.set() + return list(await tasks) + + paused = await wf.run(1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert paused.get_outputs() == [] + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_swallowed_pause_still_surfaces_unhandled_sibling_failure(self): + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + async def fail() -> None: + await asyncio.sleep(0) + raise RuntimeError("boom") + + @built_workflow + async def wf(_: int) -> list[object]: + try: + return list(await asyncio.gather(ask(), fail())) + except asyncio.CancelledError: + return ["ignored"] + + with pytest.raises(RuntimeError, match="boom"): + await wf.run(1) + + async def test_nested_unhandled_sibling_failure_replaces_pause(self): + async def child_ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + async def child_fail() -> None: + await asyncio.sleep(0) + raise RuntimeError("boom") + + @step(replay_key=lambda: "outer") + async def outer() -> list[object]: + ctx = get_run_context() + assert ctx is not None + return list(await asyncio.gather(child_ask(ctx), child_fail())) + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(outer())) + + with pytest.raises(RuntimeError, match="boom"): + await wf.run(1) + + async def test_wait_for_wrapped_sibling_failure_replaces_pause(self): + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + async def fail() -> None: + await asyncio.sleep(0) + raise RuntimeError("boom") + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.wait_for(asyncio.gather(ask(), fail()), timeout=10)) + + with pytest.raises(RuntimeError, match="boom"): + await wf.run(1) + + @pytest.mark.parametrize("wrapper", ["wait_for", "shield"]) + async def test_wrapped_request_info_pauses_and_resumes(self, wrapper: str): + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + @built_workflow + async def wf(_: int) -> int: + if wrapper == "wait_for": + return await asyncio.wait_for(ask(), timeout=10) + return await asyncio.shield(ask()) + + paused = await wf.run(1) + resumed = await wf.run(responses={"y": 5}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert resumed.get_outputs() == [5] + + async def test_gather_shield_wrapped_request_info_pauses_and_resumes(self): + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(asyncio.shield(ask()))) + + paused = await wf.run(1) + resumed = await wf.run(responses={"y": 5}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert resumed.get_outputs() == [[5]] + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_user_cancellation_after_swallowed_pause_is_not_reclassified(self): + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + @built_workflow + async def wf(_: int) -> None: + await asyncio.gather(ask(), return_exceptions=True) + raise asyncio.CancelledError("user cancel") + + with pytest.raises(asyncio.CancelledError): + await wf.run(1) + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + @pytest.mark.parametrize("mode", ["raise", "cancel"]) + async def test_empty_root_cancellation_after_swallowed_pause_is_not_reclassified(self, mode: str): + @built_workflow + async def wf(_: int, ctx: RunContext) -> None: + with suppress(asyncio.CancelledError): + await ctx.request_info("y?", int, request_id="y") + if mode == "cancel": + task = asyncio.current_task() + assert task is not None + task.cancel() + await asyncio.sleep(0) + raise asyncio.CancelledError + + with pytest.raises(asyncio.CancelledError): + await wf.run(1) + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_helper_empty_cancellation_after_swallowed_pause_is_not_reclassified(self): + @built_workflow + async def wf(_: int, ctx: RunContext) -> None: + async def helper() -> None: + with suppress(asyncio.CancelledError): + await ctx.request_info("y?", int, request_id="y") + raise asyncio.CancelledError + + await helper() + + with pytest.raises(asyncio.CancelledError): + await wf.run(1) + + async def test_concurrent_unhandled_step_failure_replaces_pause(self): + ask_started = asyncio.Event() + fail_started = asyncio.Event() + release = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + ask_started.set() + await fail_started.wait() + await release.wait() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "fail") + async def fail() -> None: + fail_started.set() + await ask_started.wait() + await release.wait() + await asyncio.sleep(0) + raise RuntimeError("boom") + + @built_workflow + async def wf(_: int) -> list[object]: + tasks = asyncio.gather(ask(), fail()) + await ask_started.wait() + await fail_started.wait() + release.set() + return list(await tasks) + + with pytest.raises(RuntimeError, match="boom"): + await wf.run(1) + + async def test_concurrent_unhandled_plain_failure_replaces_pause(self): + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + async def fail() -> None: + await asyncio.sleep(0) + raise RuntimeError("boom") + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), fail())) + + with pytest.raises(RuntimeError, match="boom"): + await wf.run(1) + + async def test_concurrent_user_cancellation_replaces_pause(self): + cancel_started = asyncio.Event() + interrupting = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await cancel_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "cancel") + async def cancel() -> None: + cancel_started.set() + await interrupting.wait() + await asyncio.sleep(0) + raise asyncio.CancelledError("user cancel") + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), cancel())) + + with pytest.raises(asyncio.CancelledError): + await wf.run(1) + + async def test_explicit_sibling_task_cancel_replaces_pause(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + sibling_task: asyncio.Task[str] | None = None + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + nonlocal sibling_task + sibling_task = asyncio.current_task() + sibling_started.set() + await asyncio.Event().wait() + return "unreachable" + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), sibling())) + + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + assert sibling_task is not None + sibling_task.cancel("user cancel") + + with pytest.raises(asyncio.CancelledError): + await asyncio.wait_for(run_task, timeout=5) + + async def test_preexisting_child_cancel_is_not_claimed_by_cleanup(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + background_started = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + async def background() -> None: + background_started.set() + await asyncio.Event().wait() + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + sibling_started.set() + await release_sibling.wait() + background_task = asyncio.create_task(background()) + await background_started.wait() + background_task.cancel("user cancel") + return "done" + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), sibling())) + + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + release_sibling.set() + + with pytest.raises(asyncio.CancelledError): + await asyncio.wait_for(run_task, timeout=5) + + async def test_swallowed_child_cancel_can_be_cancelled_by_cleanup(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + background_started = asyncio.Event() + background_finished = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + async def background() -> None: + background_started.set() + with suppress(asyncio.CancelledError): + await asyncio.Event().wait() + try: + await asyncio.Event().wait() + finally: + background_finished.set() + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + sibling_started.set() + await release_sibling.wait() + background_task = asyncio.create_task(background()) + await background_started.wait() + background_task.cancel("user cancel") + return "done" + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), sibling())) + + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + release_sibling.set() + paused = await asyncio.wait_for(run_task, timeout=5) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert background_finished.is_set() + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_later_task_cancel_after_swallowed_pause_is_not_suppressed(self): + second_started = asyncio.Event() + first_swallowed = asyncio.Event() + second_interrupting = asyncio.Event() + first_task: asyncio.Task[str] | None = None + + @step(replay_key=lambda: "first") + async def first(ctx: RunContext) -> str: + nonlocal first_task + first_task = asyncio.current_task() + await second_started.wait() + with suppress(asyncio.CancelledError): + await ctx.request_info("first?", int, request_id="r1") + first_swallowed.set() + await asyncio.Event().wait() + return "unreachable" + + @step(replay_key=lambda: "second") + async def second(ctx: RunContext) -> int: + second_started.set() + await first_swallowed.wait() + second_interrupting.set() + return await ctx.request_info("second?", int, request_id="r2") + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(first(), second())) + + run_task = asyncio.ensure_future(wf.run(1)) + await second_interrupting.wait() + assert first_task is not None + first_task.cancel("user cancel") + + with pytest.raises(asyncio.CancelledError): + await asyncio.wait_for(run_task, timeout=5) + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_later_empty_cancellation_after_swallowed_pause_is_not_suppressed(self): + second_started = asyncio.Event() + first_swallowed = asyncio.Event() + second_interrupting = asyncio.Event() + release_first = asyncio.Event() + + @step(replay_key=lambda: "first") + async def first(ctx: RunContext) -> str: + await second_started.wait() + with suppress(asyncio.CancelledError): + await ctx.request_info("first?", int, request_id="r1") + first_swallowed.set() + await release_first.wait() + raise asyncio.CancelledError + + @step(replay_key=lambda: "second") + async def second(ctx: RunContext) -> int: + second_started.set() + await first_swallowed.wait() + second_interrupting.set() + return await ctx.request_info("second?", int, request_id="r2") + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(first(), second())) + + run_task = asyncio.ensure_future(wf.run(1)) + await second_interrupting.wait() + await asyncio.sleep(0) + release_first.set() + + with pytest.raises(asyncio.CancelledError): + await asyncio.wait_for(run_task, timeout=5) + + async def test_concurrent_plain_failure_cancels_hanging_sibling(self): + hanging_finished = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + async def fail() -> None: + await asyncio.sleep(0) + raise RuntimeError("boom") + + async def hang() -> None: + try: + await asyncio.Event().wait() + finally: + hanging_finished.set() + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), fail(), hang())) + + with pytest.raises(RuntimeError, match="boom"): + await asyncio.wait_for(wf.run(1), timeout=5) + + assert hanging_finished.is_set() + + async def test_step_failure_spawned_during_settlement_replaces_pause(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + child_started = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "child") + async def child() -> None: + child_started.set() + raise RuntimeError("boom") + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + sibling_started.set() + await release_sibling.wait() + asyncio.create_task(child()) + await child_started.wait() + return "done" + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), sibling())) + + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + await asyncio.sleep(0) + release_sibling.set() + + with pytest.raises(RuntimeError, match="boom"): + await run_task + + async def test_handled_child_failure_during_settlement_does_not_replace_pause(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + async def child() -> None: + raise RuntimeError("handled child") + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + sibling_started.set() + await release_sibling.wait() + child_task = asyncio.create_task(child()) + with suppress(RuntimeError): + await child_task + return "done" + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), sibling())) + + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + release_sibling.set() + paused = await run_task + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + + async def test_unawaited_child_of_settled_sibling_is_cancelled(self): + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + background_started = asyncio.Event() + background_finished = asyncio.Event() + background_task: asyncio.Task[None] | None = None + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + async def background() -> None: + background_started.set() + try: + await asyncio.Event().wait() + finally: + background_finished.set() + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + nonlocal background_task + sibling_started.set() + await release_sibling.wait() + background_task = asyncio.create_task(background()) + await background_started.wait() + return "done" + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), sibling())) + + run_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + release_sibling.set() + paused = await asyncio.wait_for(run_task, timeout=5) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert background_task is not None + assert background_task.cancelled() + assert background_finished.is_set() + + async def test_gather_return_exceptions_does_not_expose_interruption(self): + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + @built_workflow + async def wf(_: int) -> list[object]: + return list(await asyncio.gather(ask(), return_exceptions=True)) + + paused = await wf.run(1) + resumed = await wf.run(responses={"y": 5}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert paused.get_outputs() == [] + assert resumed.get_outputs() == [[5]] + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_step_cannot_cache_swallowed_interruption(self): + calls = 0 + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int | str: + nonlocal calls + calls += 1 + try: + return await ctx.request_info("y?", int, request_id="y") + except asyncio.CancelledError: + return "fallback" + + @built_workflow + async def wf(_: int) -> int | str: + return await ask() + + paused = await wf.run(1) + resumed = await wf.run(responses={"y": 5}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert paused.get_outputs() == [] + assert resumed.get_outputs() == [5] + assert calls == 2 + + async def test_step_cannot_cache_descendant_swallowed_interruption(self): + calls = 0 + + async def child(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int | BaseException: + nonlocal calls + calls += 1 + return (await asyncio.gather(child(ctx), return_exceptions=True))[0] + + @built_workflow + async def wf(_: int) -> int | BaseException: + return await ask() + + paused = await wf.run(1) + resumed = await wf.run(responses={"y": 5}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert paused.get_outputs() == [] + assert resumed.get_outputs() == [5] + assert calls == 2 + + async def test_step_after_swallowed_interruption_does_not_self_await(self): + after_calls = 0 + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "after") + async def after() -> str: + nonlocal after_calls + after_calls += 1 + return "done" + + @built_workflow + async def wf(_: int) -> list[object]: + values: list[object] = list(await asyncio.gather(ask(), return_exceptions=True)) + values.append(await after()) + return values + + paused = await asyncio.wait_for(wf.run(1), timeout=1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert paused.get_outputs() == [] + assert after_calls == 0 + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="CancelledError pause is Python >= 3.11") + async def test_state_after_swallowed_interruption_is_not_committed(self): + @built_workflow + async def wf(_: int, ctx: RunContext) -> str: + with suppress(asyncio.CancelledError): + await ctx.request_info("continue?", int, request_id="r") + ctx.set_state("phase", "after") + return ctx.get_state("phase") + + paused = await wf.run(1) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert wf._last_state == {} # pyright: ignore[reportPrivateUsage] + + resumed = await wf.run(responses={"r": 1}) + assert resumed.get_outputs() == ["after"] + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="TaskGroup is Python >= 3.11") + async def test_task_group_hitl_interrupt_is_handled(self): + storage = InMemoryCheckpointStorage() + sibling_started = asyncio.Event() + interrupting = asyncio.Event() + release_sibling = asyncio.Event() + sibling_cancelled = False + sibling_calls = 0 + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await sibling_started.wait() + interrupting.set() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "sibling") + async def sibling() -> str: + nonlocal sibling_calls, sibling_cancelled + sibling_calls += 1 + sibling_started.set() + try: + await release_sibling.wait() + except asyncio.CancelledError: + sibling_cancelled = True + raise + return f"answer #{sibling_calls}" + + @built_workflow(checkpoint_storage=storage) + async def wf(_: int) -> list[object]: + task_group_type = cast(Any, asyncio).TaskGroup + async with task_group_type() as group: + ask_task = group.create_task(ask()) + sibling_task = group.create_task(sibling()) + return [ask_task.result(), sibling_task.result()] + + initial_task = asyncio.ensure_future(wf.run(1)) + await interrupting.wait() + await asyncio.sleep(0) + assert not initial_task.done() + assert not sibling_cancelled + release_sibling.set() + + paused = await initial_task + checkpoints = await storage.list_checkpoints(workflow_name="wf") + pause_checkpoint = checkpoints[-1] + resumed = await wf.run(responses={"y": 5}) + + assert paused.get_final_state() == WorkflowRunState.IDLE_WITH_PENDING_REQUESTS + assert "answer #1" in pause_checkpoint.state["_step_cache"].values() + assert resumed.get_outputs() == [[5, "answer #1"]] + assert sibling_calls == 1 + + @pytest.mark.skipif(not hasattr(asyncio, "TaskGroup"), reason="TaskGroup is Python >= 3.11") + async def test_task_group_real_failure_excludes_internal_interrupt(self): + started = 0 + all_started = asyncio.Event() + release = asyncio.Event() + + async def rendezvous() -> None: + nonlocal started + started += 1 + if started == 2: + all_started.set() + await release.wait() + + @step(replay_key=lambda: "ask") + async def ask(ctx: RunContext) -> int: + await rendezvous() + return await ctx.request_info("y?", int, request_id="y") + + @step(replay_key=lambda: "fail") + async def fail() -> None: + await rendezvous() + raise ValueError("boom") + + @built_workflow + async def wf(_: int) -> None: + task_group_type = cast(Any, asyncio).TaskGroup + async with task_group_type() as group: + group.create_task(ask()) + group.create_task(fail()) + await all_started.wait() + release.set() + + with pytest.raises(Exception) as exc_info: + await wf.run(1) + + assert "boom" in repr(exc_info.value) + assert "WorkflowInterrupted" not in repr(exc_info.value) + def test_replay_state_helpers_restore_and_clear_the_full_bundle(self): """Replay helpers keep message, caches, state, and pending IDs together.""" diff --git a/python/packages/core/tests/workflow/test_typing_utils.py b/python/packages/core/tests/workflow/test_typing_utils.py index ef86137bb92..560020f2fc1 100644 --- a/python/packages/core/tests/workflow/test_typing_utils.py +++ b/python/packages/core/tests/workflow/test_typing_utils.py @@ -4,6 +4,7 @@ import sys from dataclasses import InitVar, dataclass, make_dataclass from dataclasses import field as dataclass_field +from enum import Enum from types import ModuleType from typing import Annotated, Any, Generic, Literal, NewType, Optional, TypeVar, Union from unittest.mock import Mock @@ -497,6 +498,38 @@ def test_type_compatibility_unions() -> None: assert not is_type_compatible(Union[str, int, bytes], Union[str, int]) +def test_type_compatibility_literals() -> None: + """Test that a Literal source is compatible when every literal value fits the target type.""" + + class Color(Enum): + RED = "red" + BLUE = "blue" + + user_id = NewType("user_id", str) + t = TypeVar("t") + + assert is_type_compatible(Literal["approve", "reject"], str) + assert is_type_compatible(Literal[1, 2], int) + assert is_type_compatible(Literal[b"x"], bytes) + assert is_type_compatible(Literal["a", 1], Union[str, int]) + assert is_type_compatible(Literal[None], Optional[str]) + assert is_type_compatible(Literal["a"], Literal["a", "b"]) + assert is_type_compatible(Literal["a"], Optional[Literal["a", "b"]]) + assert is_type_compatible(Literal["a"], Union[user_id, str]) + assert is_type_compatible(Literal[Color.RED], Color) + assert is_type_compatible(list[Literal["a", "b"]], list[str]) + + assert not is_type_compatible(Literal["a", 1], str) + assert not is_type_compatible(Literal["a", "c"], Literal["a", "b"]) + # bool literal values do not match int literal members, the same as is_instance_of + assert not is_type_compatible(Literal[True], Literal[1]) + # targets that isinstance() cannot check are handled like a plain str source, without raising + assert not is_type_compatible(Literal["a"], user_id) + assert not is_type_compatible(Literal["a"], t) + # a plain str can hold any string, so it still does not fit a Literal target + assert not is_type_compatible(str, Literal["a", "b"]) + + def test_type_compatibility_collections() -> None: """Test type compatibility with collection types.""" diff --git a/python/packages/core/tests/workflow/test_validation.py b/python/packages/core/tests/workflow/test_validation.py index 82ca127bcd0..8d96f92b994 100644 --- a/python/packages/core/tests/workflow/test_validation.py +++ b/python/packages/core/tests/workflow/test_validation.py @@ -1,7 +1,7 @@ # Copyright (c) Microsoft. All rights reserved. import logging -from typing import Any +from typing import Any, Literal import pytest @@ -150,6 +150,22 @@ def test_type_compatibility_from_any_source_passes(): assert workflow is not None +def test_type_compatibility_from_literal_source_passes(): + """An executor that sends a Literal type can connect to an executor that handles the literal values' type.""" + + class DecisionExecutor(Executor): + @handler + async def decide(self, message: str, ctx: WorkflowContext[Literal["approve", "reject"]]) -> None: + await ctx.send_message("approve") + + decision_executor = DecisionExecutor(id="decision_executor") + string_executor = StringExecutor(id="string_executor") + + workflow = WorkflowBuilder(start_executor=decision_executor).add_edge(decision_executor, string_executor).build() + + assert workflow is not None + + def test_type_compatibility_with_no_output_types(): no_output_executor = NoOutputTypesExecutor(id="no_output") string_executor = StringExecutor(id="string_executor") diff --git a/python/packages/declarative/agent_framework_declarative/_workflows/_declarative_base.py b/python/packages/declarative/agent_framework_declarative/_workflows/_declarative_base.py index 25c1c3684fc..7338aa62260 100644 --- a/python/packages/declarative/agent_framework_declarative/_workflows/_declarative_base.py +++ b/python/packages/declarative/agent_framework_declarative/_workflows/_declarative_base.py @@ -46,6 +46,10 @@ from agent_framework._workflows._state import State from ._errors import DeclarativeWorkflowError +from ._powerfx_functions import ( + _iter_powerfx_expression_indices, # pyright: ignore[reportPrivateUsage] + whole_call_args, +) from ._powerfx_limits import _PowerFxStateBudget, _validate_powerfx_state # pyright: ignore[reportPrivateUsage] from ._state_path import _is_safe_path_segment # pyright: ignore[reportPrivateUsage] @@ -68,73 +72,6 @@ _ENV_REFERENCE_RE = re.compile(r"\bEnv\.([A-Za-z_][A-Za-z0-9_]*)") -def _skip_powerfx_opaque_token(formula: str, start: int) -> int: - """Return the end of an ordinary quoted token or comment, or start if neither.""" - quote = formula[start] - if quote in ('"', "'"): - pos = start + 1 - while pos < len(formula): - if formula[pos] == quote: - if pos + 1 < len(formula) and formula[pos + 1] == quote: - pos += 2 - continue - return pos + 1 - pos += 1 - return pos - if formula.startswith("//", start): - pos = start + 2 - while pos < len(formula) and formula[pos] not in "\r\n": - pos += 1 - return pos - if formula.startswith("/*", start): - end = formula.find("*/", start + 2) - return len(formula) if end == -1 else end + 2 - return start - - -def _iter_powerfx_expression_indices(formula: str) -> Iterator[int]: - """Yield code positions, excluding literals/comments but including interpolation expressions.""" - # None denotes interpolated text; integers track record braces in expression sections. - scopes: list[int | None] = [0] - cursor = 0 - while cursor < len(formula): - depth = scopes[-1] - char = formula[cursor] - if depth is None: - if formula.startswith(('""', "{{", "}}"), cursor): - cursor += 2 - continue - if char == "{": - scopes.append(0) - elif char == '"': - scopes.pop() - cursor += 1 - continue - - if formula.startswith('$"', cursor): - scopes.append(None) - cursor += 2 - continue - - token_end = _skip_powerfx_opaque_token(formula, cursor) - if token_end != cursor: - cursor = token_end - continue - - if char == "{": - scopes[-1] = depth + 1 - elif char == "}": - if depth > 0: - scopes[-1] = depth - 1 - elif len(scopes) > 1: - scopes.pop() - cursor += 1 - continue - - yield cursor - cursor += 1 - - @dataclass(frozen=True) class DeclarativeEnvConfig: """Configuration that populates the PowerFx ``Env`` symbol for a workflow. @@ -721,14 +658,14 @@ def _eval_custom_function(self, formula: str) -> Any | None: Returns None if the formula is not a custom function call. """ - import re + formula = formula.strip() # Concat/Concatenate - string concatenation # In standard PowerFx, Concatenate is for strings, Concat is for tables. # Copilot Studio uses Concat for strings, so we support both. - match = re.match(r"(?:Concat|Concatenate)\((.+)\)$", formula.strip()) - if match: - args_str = match.group(1) + args_str = whole_call_args(formula, "Concat", "Concatenate") + # Empty arguments fall through so PowerFx reports the arity error. + if args_str: # Parse comma-separated arguments (handling nested parentheses) args = self._parse_function_args(args_str) evaluated_args: list[str] = [] @@ -747,24 +684,24 @@ def _eval_custom_function(self, formula: str) -> Any | None: return "".join(evaluated_args) # UserMessage(expr) - creates a user message dict - match = re.match(r"UserMessage\((.+)\)$", formula.strip()) - if match: - inner_expr = match.group(1).strip() + inner_args = whole_call_args(formula, "UserMessage") + if inner_args: + inner_expr = inner_args.strip() # Evaluate the inner expression text = self.eval(f"={inner_expr}") return {"role": "user", "text": str(text) if text else ""} # AgentMessage(expr) - creates an assistant message dict - match = re.match(r"AgentMessage\((.+)\)$", formula.strip()) - if match: - inner_expr = match.group(1).strip() + inner_args = whole_call_args(formula, "AgentMessage") + if inner_args: + inner_expr = inner_args.strip() text = self.eval(f"={inner_expr}") return {"role": "assistant", "text": str(text) if text else ""} # MessageText(expr) - extracts text from the last message - match = re.match(r"MessageText\((.+)\)$", formula.strip()) - if match: - inner_expr = match.group(1).strip() + inner_args = whole_call_args(formula, "MessageText") + if inner_args: + inner_expr = inner_args.strip() # Reuse the helper method for consistent text extraction return self._eval_and_replace_message_text(inner_expr) diff --git a/python/packages/declarative/agent_framework_declarative/_workflows/_executors_basic.py b/python/packages/declarative/agent_framework_declarative/_workflows/_executors_basic.py index 34153b242a5..76b264488c8 100644 --- a/python/packages/declarative/agent_framework_declarative/_workflows/_executors_basic.py +++ b/python/packages/declarative/agent_framework_declarative/_workflows/_executors_basic.py @@ -53,7 +53,8 @@ async def handle_action( """Handle the SetValue action.""" state = await self._ensure_state_initialized(ctx, trigger) - path = self._action_def.get("path") + # The builder accepts 'variable' in place of 'path' for SetValue + path = self._action_def.get("path") or _get_variable_path(self._action_def) value = self._action_def.get("value") if path: diff --git a/python/packages/declarative/agent_framework_declarative/_workflows/_executors_mcp.py b/python/packages/declarative/agent_framework_declarative/_workflows/_executors_mcp.py index 7d3647d00bd..28ff521b0c4 100644 --- a/python/packages/declarative/agent_framework_declarative/_workflows/_executors_mcp.py +++ b/python/packages/declarative/agent_framework_declarative/_workflows/_executors_mcp.py @@ -32,7 +32,7 @@ from dataclasses import dataclass, field from typing import Any -import httpx +import httpx2 as httpx from agent_framework import ( Content, Message, @@ -503,10 +503,10 @@ async def _invoke_with_narrow_catch(self, invocation: MCPToolInvocation) -> MCPT ) except Exception as exc: try: - from mcp.shared.exceptions import McpError + from mcp.shared.exceptions import MCPError except ImportError: # pragma: no cover - mcp is a hard dep raise - if isinstance(exc, McpError): + if isinstance(exc, MCPError): message = str(exc) or type(exc).__name__ return MCPToolResult( outputs=[Content.from_text(f"Error: {message}")], diff --git a/python/packages/declarative/agent_framework_declarative/_workflows/_mcp_handler.py b/python/packages/declarative/agent_framework_declarative/_workflows/_mcp_handler.py index 64eb59750fb..3dee698de35 100644 --- a/python/packages/declarative/agent_framework_declarative/_workflows/_mcp_handler.py +++ b/python/packages/declarative/agent_framework_declarative/_workflows/_mcp_handler.py @@ -27,6 +27,7 @@ from __future__ import annotations import asyncio +import contextlib import hashlib import json import logging @@ -36,7 +37,7 @@ from dataclasses import dataclass, field from typing import TYPE_CHECKING, Any, ClassVar, Protocol, cast, runtime_checkable -import httpx +import httpx2 as httpx if TYPE_CHECKING: from agent_framework import Content @@ -345,10 +346,10 @@ async def _invoke_entry(self, entry: _CacheEntry, invocation: MCPToolInvocation) # Be defensive about MCP errors that may bubble up without being # wrapped in ToolExecutionException by custom parsers. try: - from mcp.shared.exceptions import McpError + from mcp.shared.exceptions import MCPError except ImportError: # pragma: no cover - mcp is a hard dep but stay defensive raise - if isinstance(exc, McpError): + if isinstance(exc, MCPError): message = str(exc) or type(exc).__name__ return MCPToolResult( outputs=[Content.from_text(f"Error: {message}")], @@ -369,7 +370,7 @@ async def _invoke_entry(self, entry: _CacheEntry, invocation: MCPToolInvocation) async def _invoke_list_tools(entry: _CacheEntry) -> MCPToolResult: """Handle the reserved :attr:`LIST_TOOLS_TOOL_NAME` invocation. - Pages through ``session.list_tools()`` (mirroring the pagination loop + Pages through the normalized MCP connection (mirroring the pagination loop in :meth:`agent_framework.MCPTool.load_tools`) and serialises the full catalog as a single ``TextContent`` containing JSON of shape ``{"tools": [{name, description, inputSchema, outputSchema}, ...]}``. @@ -383,8 +384,16 @@ async def _invoke_list_tools(entry: _CacheEntry) -> MCPToolResult: """ from agent_framework import Content - session = getattr(entry.tool, "session", None) - if session is None: + require_connection: Any = getattr(entry.tool, "_require_connection", None) + connection: Any | None = None + session: Any | None = None + if callable(require_connection): + with contextlib.suppress(RuntimeError): + connection = require_connection() + else: + session = getattr(entry.tool, "session", None) + + if connection is None and session is None: message = "MCP session is not connected; cannot list tools." return MCPToolResult( outputs=[Content.from_text(f"Error: {message}")], @@ -398,9 +407,14 @@ async def _invoke_list_tools(entry: _CacheEntry) -> MCPToolResult: collected: list[Any] = [] params: mcp_types.PaginatedRequestParams | None = None while True: - tool_list = await session.list_tools(params=params) + if connection is not None: + tool_list = await connection.list_tools_page(params) + elif session is not None: + tool_list = await session.list_tools(params=params) + else: # pragma: no cover - guarded before entering the loop + raise RuntimeError("MCP connection became unavailable while listing tools.") collected.extend(tool_list.tools) - next_cursor = getattr(tool_list, "nextCursor", None) + next_cursor = getattr(tool_list, "next_cursor", getattr(tool_list, "nextCursor", None)) if not next_cursor: break params = mcp_types.PaginatedRequestParams(cursor=next_cursor) @@ -410,8 +424,8 @@ async def _invoke_list_tools(entry: _CacheEntry) -> MCPToolResult: { "name": tool.name, "description": tool.description, - "inputSchema": tool.inputSchema, - "outputSchema": tool.outputSchema, + "inputSchema": getattr(tool, "input_schema", getattr(tool, "inputSchema", None)), + "outputSchema": getattr(tool, "output_schema", getattr(tool, "outputSchema", None)), } for tool in collected ], diff --git a/python/packages/declarative/agent_framework_declarative/_workflows/_powerfx_functions.py b/python/packages/declarative/agent_framework_declarative/_workflows/_powerfx_functions.py index e5b2f4156d0..ddaad1e299f 100644 --- a/python/packages/declarative/agent_framework_declarative/_workflows/_powerfx_functions.py +++ b/python/packages/declarative/agent_framework_declarative/_workflows/_powerfx_functions.py @@ -12,9 +12,156 @@ from __future__ import annotations +from collections.abc import Iterator from typing import Any, cast +def _skip_powerfx_opaque_token(formula: str, start: int) -> int: + """Return the end of an ordinary quoted token or comment, or start if neither.""" + quote = formula[start] + if quote in ('"', "'"): + pos = start + 1 + while pos < len(formula): + if formula[pos] == quote: + if pos + 1 < len(formula) and formula[pos + 1] == quote: + pos += 2 + continue + return pos + 1 + pos += 1 + return pos + if formula.startswith("//", start): + pos = start + 2 + while pos < len(formula) and formula[pos] not in "\r\n": + pos += 1 + return pos + if formula.startswith("/*", start): + end = formula.find("*/", start + 2) + # An unterminated /* is not a complete comment: leave it as code so a + # trailing one is not mistaken for trivia following a complete call. + return start if end == -1 else end + 2 + return start + + +def _iter_powerfx_expression_indices(formula: str) -> Iterator[int]: + """Yield code positions, excluding literals/comments but including interpolation expressions.""" + # None denotes interpolated text; integers track record braces in expression sections. + scopes: list[int | None] = [0] + cursor = 0 + while cursor < len(formula): + depth = scopes[-1] + char = formula[cursor] + if depth is None: + if formula.startswith(('""', "{{", "}}"), cursor): + cursor += 2 + continue + if char == "{": + scopes.append(0) + elif char == '"': + scopes.pop() + cursor += 1 + continue + + if formula.startswith('$"', cursor): + scopes.append(None) + cursor += 2 + continue + + token_end = _skip_powerfx_opaque_token(formula, cursor) + if token_end != cursor: + cursor = token_end + continue + + if char == "{": + scopes[-1] = depth + 1 + elif char == "}": + if depth > 0: + scopes[-1] = depth - 1 + elif len(scopes) > 1: + scopes.pop() + cursor += 1 + continue + + yield cursor + cursor += 1 + + +def _after_trailing_trivia(formula: str, start: int) -> int: + """Return the index after trailing whitespace and complete comments. + + Unlike the expression walker, this never skips a string literal: a quoted + token after the call's own closing paren is trailing code, not trivia, so it + stops the scan and leaves the formula to PowerFx. + """ + index = start + while index < len(formula): + if formula[index].isspace(): + index += 1 + continue + if formula.startswith(("//", "/*"), index): + token_end = _skip_powerfx_opaque_token(formula, index) + if token_end == index: + # Unterminated /* is not a complete comment, so real code follows. + break + index = token_end + continue + break + return index + + +def whole_call_args(formula: str, *names: str) -> str | None: + """Return the argument text when ``formula`` is exactly one ``Name(...)`` call. + + A custom-function handler must not fire for a formula that merely *starts* + with its name: the closing parenthesis has to be the call's own and nothing + but trivia may follow it. Otherwise a trailing operator is swallowed into the + argument list and the formula is evaluated as something the author never + wrote, instead of being left to PowerFx. + + Parentheses inside string literals and comments are data, not delimiters, so + the scan walks the formula with the shared PowerFx expression walker: it + skips those tokens whole and counts only parentheses that are real code, + including those inside an interpolated string's ``{...}`` expression sections. + + Args: + formula: The stripped formula to inspect. + *names: Candidate function names, matched case-sensitively. + + Returns: + The text between the call's parentheses - an empty string for an + argument-less call - or None when ``formula`` is not a single complete + call to one of ``names``. Callers that require an argument check the + result for emptiness so the call still falls through to PowerFx, which + reports the arity error. + """ + for name in names: + prefix = f"{name}(" + if not formula.startswith(prefix): + continue + positions = _iter_powerfx_expression_indices(formula) + depth = 0 + close_index = -1 + for index in positions: + char = formula[index] + if char == "(": + depth += 1 + elif char == ")": + depth -= 1 + if depth == 0: + close_index = index + break + if close_index == -1: + # Unbalanced: the call never closes, so it is not a whole call. + return None + # Only whitespace and complete comments may follow the call's own closing + # paren. The suffix scan deliberately does not reuse the literal-skipping + # walker: a trailing string literal (or any other code) there means the + # formula is a larger expression the caller must not claim. + if _after_trailing_trivia(formula, close_index + 1) != len(formula): + return None + return formula[len(prefix) : close_index] + return None + + def message_text(messages: Any) -> str: """Extract text content from a message or list of messages. diff --git a/python/packages/declarative/agent_framework_declarative/_workflows/_state.py b/python/packages/declarative/agent_framework_declarative/_workflows/_state.py index a617f812e66..c2a18a0c7c4 100644 --- a/python/packages/declarative/agent_framework_declarative/_workflows/_state.py +++ b/python/packages/declarative/agent_framework_declarative/_workflows/_state.py @@ -441,7 +441,7 @@ def _eval_simple(self, formula: str) -> Any: Returns: The evaluated result """ - from ._powerfx_functions import CUSTOM_FUNCTIONS + from ._powerfx_functions import CUSTOM_FUNCTIONS, whole_call_args formula = formula.strip() @@ -452,15 +452,15 @@ def _eval_simple(self, formula: str) -> Any: return not bool(result) # Handle Not() function - if formula.startswith("Not(") and formula.endswith(")"): - inner = formula[4:-1].strip() - result = self._eval_simple(inner) + not_args = whole_call_args(formula, "Not") + if not_args is not None: + result = self._eval_simple(not_args.strip()) return not bool(result) # Handle function calls for func_name, func in CUSTOM_FUNCTIONS.items(): - if formula.startswith(f"{func_name}(") and formula.endswith(")"): - args_str = formula[len(func_name) + 1 : -1] + args_str = whole_call_args(formula, func_name) + if args_str is not None: # Simple argument parsing (doesn't handle nested calls well) args = self._parse_function_args(args_str) evaluated_args = [self._eval_simple(arg) if isinstance(arg, str) else arg for arg in args] diff --git a/python/packages/declarative/pyproject.toml b/python/packages/declarative/pyproject.toml index 72e46bf055a..05d9552dcf1 100644 --- a/python/packages/declarative/pyproject.toml +++ b/python/packages/declarative/pyproject.toml @@ -4,7 +4,7 @@ description = "Declarative specification support for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.2.1" +version = "1.3.0" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,6 +24,7 @@ classifiers = [ dependencies = [ "agent-framework-core>=1.20.0,<2", "httpx>=0.27,<0.29", + "httpx2>=2.0.0,<3", "powerfx>=0.0.32,<0.0.35; python_version < '3.14'", "pyyaml>=6.0,<7.0", ] diff --git a/python/packages/declarative/tests/test_default_mcp_tool_handler.py b/python/packages/declarative/tests/test_default_mcp_tool_handler.py index 0826302cf69..387744d84c7 100644 --- a/python/packages/declarative/tests/test_default_mcp_tool_handler.py +++ b/python/packages/declarative/tests/test_default_mcp_tool_handler.py @@ -20,7 +20,7 @@ from typing import Any from unittest.mock import AsyncMock, patch -import httpx +import httpx2 as httpx import pytest from agent_framework import Content from agent_framework.exceptions import ToolExecutionException @@ -173,7 +173,9 @@ async def respond(request: httpx.Request) -> httpx.Response: if request.method == "GET": return httpx.Response(405) if request.method == "DELETE": - terminated.append(request.headers["mcp-session-id"]) + session_id = request.headers.get("mcp-session-id") + if session_id is not None: + terminated.append(session_id) return httpx.Response(200) body = json.loads(request.content) @@ -182,21 +184,22 @@ async def respond(request: httpx.Request) -> httpx.Response: if "id" not in body: return httpx.Response(202) headers: dict[str, str] = {} - if method == "initialize": - session_id = f"lifecycle-{len(initialized) + 1}" - initialized.append(session_id) - headers["mcp-session-id"] = session_id + result: dict[str, Any] + if method == "server/discover": + initialized.append(f"discovery-{len(initialized) + 1}") result = { - "protocolVersion": body["params"]["protocolVersion"], + "supportedVersions": ["2026-07-28"], "capabilities": {"tools": {}}, - "serverInfo": {"name": "lifecycle", "version": "1"}, } elif method == "tools/list": result = { + "resultType": "complete", + "ttlMs": 0, + "cacheScope": "private", "tools": [{"name": "ok", "inputSchema": {"type": "object", "properties": {}}}], } elif method == "tools/call": - result = {"content": [{"type": "text", "text": "ok"}]} + result = {"resultType": "complete", "content": [{"type": "text", "text": "ok"}]} else: assert method == "ping" result = {} @@ -240,7 +243,7 @@ def create_tool(**kwargs: Any) -> MCPStreamableHTTPTool: assert provider.await_count == index assert len(tools) == index assert len(initialized) == index - assert terminated == initialized + assert not terminated assert not handler._active_invocations assert not handler._cache tool = tools[-1] @@ -257,6 +260,7 @@ def create_tool(**kwargs: Any) -> MCPStreamableHTTPTool: assert not caller_client.is_closed assert caller_client.close_count == 0 assert len({id(tool) for tool in tools}) == 4 + assert methods.count("server/discover") == 4 assert methods.count("tools/call") == 2 assert methods.count("tools/list") == 6 assert not any( @@ -581,10 +585,9 @@ async def connect(tool: FakeTool) -> None: @pytest.mark.parametrize("tool_name", ["search", "tools/list"]) async def test_mcp_error_mapping_cleans_up(self, tool_name: str) -> None: - from mcp.shared.exceptions import McpError - from mcp.types import ErrorData + from mcp.shared.exceptions import MCPError - error = McpError(ErrorData(code=-32603, message="operation stopped")) + error = MCPError(-32603, "operation stopped") with ( _patch_tool(), patch.object(FakeTool, "call_tool", new_callable=AsyncMock, side_effect=error), diff --git a/python/packages/declarative/tests/test_graph_coverage.py b/python/packages/declarative/tests/test_graph_coverage.py index 5b150bf497f..7187b317f8c 100644 --- a/python/packages/declarative/tests/test_graph_coverage.py +++ b/python/packages/declarative/tests/test_graph_coverage.py @@ -451,6 +451,34 @@ async def test_set_variable_executor(self, mock_context, mock_state): result = state.get("Local.result") assert result == "test value" + @pytest.mark.parametrize("variable", ["Local.target", {"path": "Local.target"}]) + async def test_set_value_executor_with_variable_field(self, mock_context, mock_state, variable): + """SetValue accepts 'variable' in place of 'path', so it must write to it.""" + from agent_framework_declarative._workflows._executors_basic import SetValueExecutor + + state = DeclarativeWorkflowState(mock_state) + state.initialize() + + action_def = {"kind": "SetValue", "variable": variable, "value": "test value"} + executor = SetValueExecutor(action_def) + await executor.handle_action(ActionTrigger(), mock_context) + + assert state.get("Local.target") == "test value" + + async def test_set_value_executor_path_wins_over_variable(self, mock_context, mock_state): + """When SetValue has both 'path' and 'variable', 'path' is used.""" + from agent_framework_declarative._workflows._executors_basic import SetValueExecutor + + state = DeclarativeWorkflowState(mock_state) + state.initialize() + + action_def = {"kind": "SetValue", "path": "Local.a", "variable": "Local.b", "value": "v"} + executor = SetValueExecutor(action_def) + await executor.handle_action(ActionTrigger(), mock_context) + + assert state.get("Local.a") == "v" + assert state.get("Local.b") is None + async def test_set_variable_executor_with_nested_variable(self, mock_context, mock_state): """Test SetVariableExecutor with nested variable object.""" from agent_framework_declarative._workflows._executors_basic import ( diff --git a/python/packages/declarative/tests/test_graph_executors.py b/python/packages/declarative/tests/test_graph_executors.py index 1c0ca421e98..1a90189f97f 100644 --- a/python/packages/declarative/tests/test_graph_executors.py +++ b/python/packages/declarative/tests/test_graph_executors.py @@ -2077,7 +2077,7 @@ def capture(ctx: FunctionInvocationContext) -> str: tools=[ types.Tool( name="record", - inputSchema={ + input_schema={ "type": "object", "properties": {"client_kwargs": {"type": "object"}, "tool_marker": {"type": "string"}}, }, diff --git a/python/packages/declarative/tests/test_invoke_mcp_tool_executor.py b/python/packages/declarative/tests/test_invoke_mcp_tool_executor.py index 28b3a1a0d67..b8c2e010c96 100644 --- a/python/packages/declarative/tests/test_invoke_mcp_tool_executor.py +++ b/python/packages/declarative/tests/test_invoke_mcp_tool_executor.py @@ -11,7 +11,7 @@ import sys from typing import Any -import httpx +import httpx2 as httpx import pytest try: diff --git a/python/packages/declarative/tests/test_powerfx_functions.py b/python/packages/declarative/tests/test_powerfx_functions.py index 239303794cf..8927538605a 100644 --- a/python/packages/declarative/tests/test_powerfx_functions.py +++ b/python/packages/declarative/tests/test_powerfx_functions.py @@ -4,6 +4,9 @@ from typing import cast +from agent_framework._workflows._state import State + +from agent_framework_declarative._workflows._declarative_base import DeclarativeWorkflowState from agent_framework_declarative._workflows._powerfx_functions import ( CUSTOM_FUNCTIONS, assistant_message, @@ -19,6 +22,7 @@ system_message, upper, user_message, + whole_call_args, ) @@ -692,3 +696,157 @@ def test_search_table_false_is_a_value_not_a_blank(self): """Test search_table with a boolean False.""" items = [{"ok": True, "label": "yes"}, {"ok": False, "label": "no"}] assert [item["label"] for item in search_table(items, False, "ok")] == ["no"] + + +class TestWholeCallArgs: + """Tests for whole_call_args, which bounds a custom-function match to one call.""" + + def test_whole_call_returns_inner_text(self): + """A formula that is exactly one call yields its argument text.""" + assert whole_call_args('Concat("a", "b")', "Concat") == '"a", "b"' + + def test_trailing_operator_is_not_claimed(self): + """A call followed by more expression belongs to PowerFx, not the handler.""" + assert whole_call_args('Concat("a") & Lower("B")', "Concat") is None + assert whole_call_args('MessageText("hi") & Upper("there")', "MessageText") is None + + def test_trailing_text_after_closing_paren_is_not_claimed(self): + """Anything after the call's own closing paren disqualifies the match.""" + assert whole_call_args('Concat("a") + 1', "Concat") is None + + def test_trailing_string_literal_after_the_call_is_not_claimed(self): + """A quoted string after the call's own closing paren is trailing code. + + The suffix scan must not reuse the literal-skipping walker, or the + trailing string is silently dropped and a malformed formula is claimed + instead of being left to PowerFx. + """ + assert whole_call_args('Concat("a") "tail"', "Concat") is None + assert whole_call_args('Upper("x") /* c */ "tail"', "Upper") is None + + def test_name_must_start_the_formula(self): + """A call nested inside a larger formula is not a whole-formula match.""" + assert whole_call_args('Lower("B") & Concat("a")', "Concat") is None + + def test_nested_same_name_call_is_balanced(self): + """Nested parentheses are tracked, so the outer call still matches.""" + assert whole_call_args('Concat(Concat("a", "b"), "c")', "Concat") == 'Concat("a", "b"), "c"' + + def test_paren_inside_string_literal_does_not_close_the_call(self): + """A ``)`` inside a quoted literal is data, not the call's terminator.""" + assert whole_call_args('Concat("a)", "b")', "Concat") == '"a)", "b"' + assert whole_call_args('Concat("MessageText(Local.S)")', "Concat") == '"MessageText(Local.S)"' + + def test_empty_arguments_match_with_an_empty_string(self): + """An argument-less call is a match; emptiness is the caller's decision. + + Returning None here would make a zero-argument call indistinguishable + from no call at all, which silently disabled ``Or()``/``And()`` in the + fallback dispatcher. + """ + assert whole_call_args("Concat()", "Concat") == "" + assert whole_call_args("Or()", "Or") == "" + + def test_unbalanced_parens_fall_through(self): + """An unterminated call is not matched.""" + assert whole_call_args('Concat("a"', "Concat") is None + + def test_first_matching_name_wins(self): + """Several candidate names may be offered in one call.""" + assert whole_call_args('Concatenate("x")', "Concat", "Concatenate") == '"x"' + assert whole_call_args('Concat("x")', "Concat", "Concatenate") == '"x"' + + def test_match_is_case_sensitive(self): + """PowerFx function names are matched exactly, as before.""" + assert whole_call_args('concat("a")', "Concat") is None + + def test_paren_inside_a_block_comment_does_not_close_the_call(self): + """A ``)`` in a comment is text, so the call is still one whole call.""" + assert whole_call_args('UserMessage("hi" /* ) */)', "UserMessage") == '"hi" /* ) */' + + def test_paren_inside_a_line_comment_does_not_close_the_call(self): + """The same holds for a ``//`` comment inside the argument list.""" + assert whole_call_args('UserMessage("hi" // )\n)', "UserMessage") == '"hi" // )\n' + + def test_trailing_comment_after_the_call_is_trivia(self): + """A comment following the call does not make the formula a larger expression.""" + assert whole_call_args('Upper("x") // trailing (', "Upper") == '"x"' + assert whole_call_args('Upper("x") /* trailing */', "Upper") == '"x"' + + def test_unterminated_block_comment_falls_through(self): + """An unclosed comment swallows the rest of the formula, so nothing matches.""" + assert whole_call_args('Upper("x" /* unterminated', "Upper") is None + + def test_trailing_unterminated_block_comment_falls_through(self): + """A complete call followed by an unterminated /* is a larger expression.""" + assert whole_call_args('Concat("a") /* unterminated', "Concat") is None + assert whole_call_args('Upper("x") /* unterminated', "Upper") is None + + def test_escaped_quote_inside_a_literal_is_data(self): + """``""`` is an escaped quote, so the literal does not end there.""" + assert whole_call_args('Concat("a"")", "b")', "Concat") == '"a"")", "b"' + + def test_paren_inside_an_interpolation_string_does_not_close_the_call(self): + """A ``)`` in a quoted string inside a ``$"{...}"`` expression is data, not the terminator.""" + formula = 'UserMessage($"x {If(true, ")", "x")}")' + assert whole_call_args(formula, "UserMessage") == '$"x {If(true, ")", "x")}"' + + +class TestEvalCustomFunctionExtent: + """A custom-function handler must only claim a formula that is one whole call. + + Regression test for the end-anchored regexes that captured any formula + starting with a dialect function name and ending in ``)``, swallowing the + trailing operator into the argument list. These assertions need no PowerFx + engine: a handled formula returns its value, and an unhandled one returns + None so that eval() hands the formula to PowerFx. + """ + + def _state(self) -> DeclarativeWorkflowState: + state = DeclarativeWorkflowState(State()) + state.initialize({}) + return state + + def test_whole_concat_call_is_still_handled(self): + """The Copilot Studio string alias keeps working for a complete call.""" + assert self._state()._eval_custom_function('Concat("a", "b")') == "ab" + assert self._state()._eval_custom_function('Concatenate("a", "b")') == "ab" + + def test_concat_with_trailing_operator_falls_through(self): + """A trailing operator must not be absorbed as a string literal.""" + assert self._state()._eval_custom_function('Concat("a") & Lower("B")') is None + assert self._state()._eval_custom_function('Concatenate("x") & Upper("y")') is None + + def test_message_helpers_with_trailing_operator_fall_through(self): + """UserMessage/AgentMessage/MessageText are bounded the same way.""" + state = self._state() + assert state._eval_custom_function('UserMessage("hi") & "x"') is None + assert state._eval_custom_function('AgentMessage("hi") & "x"') is None + assert state._eval_custom_function('MessageText("hi") & Upper("x")') is None + + def test_quoted_paren_inside_a_whole_call_is_preserved(self): + """A literal containing ``)`` does not truncate the call.""" + assert self._state()._eval_custom_function('Concat("a)", "b")') == "a)b" + + def test_argument_less_call_falls_through(self): + """``Concat()`` is left to PowerFx, which reports the arity error.""" + assert self._state()._eval_custom_function("Concat()") is None + assert self._state()._eval_custom_function("MessageText()") is None + + def test_trailing_comment_does_not_disqualify_the_call(self): + """A comment after the call is trivia, not a larger expression. + + A comment *inside* the argument list is claimed as well, but how its + text is then split and unquoted belongs to the argument heuristic (see + issue #9072), not to the extent of the match. + """ + assert self._state()._eval_custom_function('Concat("a", "b") /* done */') == "ab" + assert self._state()._eval_custom_function('Concat("a", "b") // done') == "ab" + + def test_trailing_unterminated_comment_falls_through(self): + """An unterminated trailing /* is not trivia, so PowerFx handles the formula.""" + assert self._state()._eval_custom_function('Concat("a") /* unterminated') is None + + def test_trailing_string_literal_falls_through(self): + """A trailing string after a complete call is a larger expression for PowerFx.""" + assert self._state()._eval_custom_function('Concat("a") "tail"') is None diff --git a/python/packages/declarative/tests/test_workflow_factory.py b/python/packages/declarative/tests/test_workflow_factory.py index 034782a2968..46b3d11a9e1 100644 --- a/python/packages/declarative/tests/test_workflow_factory.py +++ b/python/packages/declarative/tests/test_workflow_factory.py @@ -359,6 +359,39 @@ async def test_devui_declarative_workflow_categorizes_message_input(self, age: i assert any(f"categorized as: {category}" in str(output) for output in outputs) +class TestWorkflowFactorySetValueAlias: + """SetValue's 'variable' alias through a real factory run. Literal values, so no PowerFx needed.""" + + @pytest.mark.parametrize( + "variable_yaml", + ["variable: Local.target", "variable:\n path: Local.target"], + ids=["string", "nested"], + ) + async def test_set_value_variable_alias_persists_in_checkpoint(self, variable_yaml: str) -> None: + """The builder accepts 'variable' for SetValue, so a real run must write and checkpoint it.""" + from agent_framework import InMemoryCheckpointStorage + + from agent_framework_declarative._workflows._declarative_base import DECLARATIVE_STATE_KEY + + storage = InMemoryCheckpointStorage() + workflow = WorkflowFactory(checkpoint_storage=storage).create_workflow_from_yaml(f""" +name: set-value-variable-alias +actions: + - kind: SetValue + {variable_yaml} + value: from variable +""") + await workflow.run({}) + + checkpoints = await storage.list_checkpoints(workflow_name=workflow.name) + assert checkpoints + # Early checkpoints are taken before the declarative state exists. + saved = [ + checkpoint.state.get(DECLARATIVE_STATE_KEY, {}).get("Local", {}).get("target") for checkpoint in checkpoints + ] + assert "from variable" in saved + + @_requires_powerfx class TestWorkflowFactoryExecution: """Tests for workflow execution.""" diff --git a/python/packages/declarative/tests/test_workflow_state.py b/python/packages/declarative/tests/test_workflow_state.py index 531b6c75e5d..4cc8859eafc 100644 --- a/python/packages/declarative/tests/test_workflow_state.py +++ b/python/packages/declarative/tests/test_workflow_state.py @@ -440,6 +440,70 @@ def test_workflow_inputs_reference(self): assert state._eval_simple("Workflow.Inputs.name") == "test" +class TestWorkflowStateEvalSimpleCallExtent: + """The fallback dispatcher must only claim a formula that is one whole call. + + ``_eval_simple`` previously matched ``formula.startswith(f"{name}(")`` with + ``formula.endswith(")")``, so a call followed by any operator had the + remainder of the formula absorbed into its arguments. + """ + + def test_trailing_operator_is_not_absorbed_into_arguments(self): + """The formula is left unclaimed instead of yielding a corrupted fragment. + + ``_eval_simple`` echoes a formula it cannot evaluate, and ``eval`` + reaches it only after PowerFx has already had its turn. + """ + state = WorkflowState() + formula = 'Concat("a") & Lower("B")' + assert state._eval_simple(formula) == formula + + def test_not_with_trailing_operator_is_not_absorbed(self): + """The Not() special case is bounded the same way. + + Previously the handler claimed this formula and returned a bool built + from the mis-parsed fragment ``false) & Upper("x"``. + """ + state = WorkflowState() + formula = 'Not(false) & Upper("x")' + assert state._eval_simple(formula) == formula + + def test_whole_not_call_still_dispatches(self): + """A complete Not() call keeps negating its argument.""" + assert WorkflowState()._eval_simple("Not(false)") is True + + def test_whole_call_still_dispatches(self): + """A complete call keeps resolving through CUSTOM_FUNCTIONS.""" + state = WorkflowState() + assert state._eval_simple('Concat("a", "b")') == "ab" + assert state._eval_simple('Upper("ab")') == "AB" + + def test_argument_less_call_still_dispatches(self): + """A zero-argument call is a call, not an unmatched formula. + + ``Or()`` is false in PowerFx. Echoing the formula instead would hand a + truthy string back to a condition and invert it. + """ + state = WorkflowState() + assert state._eval_simple("Or()") is False + assert state._eval_simple("And()") is True + assert state._eval_simple("Not()") is True + + def test_commented_paren_does_not_truncate_the_call(self): + """A ``)`` inside a comment is text, so the call is still claimed. + + What the argument heuristic then makes of the comment text is issue + #9072's business; the point here is that the formula is dispatched + rather than echoed back unevaluated. + """ + formula = 'Upper("ab" /* ) */)' + assert WorkflowState()._eval_simple(formula) != formula + + def test_trailing_comment_does_not_disqualify_the_call(self): + """A comment after the call is trivia, not a larger expression.""" + assert WorkflowState()._eval_simple('Upper("ab") // done') == "AB" + + class TestWorkflowStateParseFunctionArgs: """Tests for _parse_function_args helper.""" diff --git a/python/packages/devui/agent_framework_devui/_discovery.py b/python/packages/devui/agent_framework_devui/_discovery.py index 70447f2624a..bb20f80e312 100644 --- a/python/packages/devui/agent_framework_devui/_discovery.py +++ b/python/packages/devui/agent_framework_devui/_discovery.py @@ -20,6 +20,19 @@ logger = logging.getLogger(__name__) +def _global_names(scope: ast.FunctionDef | ast.AsyncFunctionDef | ast.ClassDef) -> set[str]: + """Return the names a function or class body declares ``global``, not counting nested scopes.""" + names: set[str] = set() + pending: list[ast.AST] = list(scope.body) + while pending: + node = pending.pop() + if isinstance(node, ast.Global): + names.update(node.names) + elif not isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef, ast.ClassDef, ast.Lambda)): + pending.extend(ast.iter_child_nodes(node)) + return names + + class EntityDiscovery: """Discovery for Agent Framework entities - agents and workflows.""" @@ -555,12 +568,28 @@ def _has_entity_exports(self, file_path: Path) -> bool: source = file_path.read_text(encoding="utf-8") tree = ast.parse(source, filename=str(file_path)) - # Look for module-level assignments of 'agent' or 'workflow' - for node in ast.walk(tree): + # Look for assignments of 'agent' or 'workflow' that create module attributes. In a + # function or class body that is only the case for names the scope declares global; + # otherwise they are locals or class attributes. + exports = {"agent", "workflow"} + pending: list[tuple[ast.AST, set[str]]] = [(node, exports) for node in tree.body] + while pending: + node, names = pending.pop() + if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef, ast.ClassDef)): + scope_names = exports & _global_names(node) + pending.extend((child, scope_names) for child in node.body) + continue + pending.extend((child, names) for child in ast.iter_child_nodes(node)) if isinstance(node, ast.Assign): - for target in node.targets: - if isinstance(target, ast.Name) and target.id in ("agent", "workflow"): - return True + targets = node.targets + elif isinstance(node, ast.AnnAssign) and node.value is not None: + # Annotated assignment, e.g. `agent: Agent = Agent(...)` + targets = [node.target] + else: + continue + for target in targets: + if isinstance(target, ast.Name) and target.id in names: + return True except Exception as e: logger.debug(f"Could not parse {file_path} for entity exports: {e}") return False diff --git a/python/packages/devui/agent_framework_devui/_executor.py b/python/packages/devui/agent_framework_devui/_executor.py index f64a61964ec..3e601955721 100644 --- a/python/packages/devui/agent_framework_devui/_executor.py +++ b/python/packages/devui/agent_framework_devui/_executor.py @@ -149,65 +149,6 @@ def _track_approval_request(self, event: dict[str, Any], conversation_id: str | } logger.debug("Tracked approval request: %s for function: %s", request_id, fc.get("name", "unknown")) - async def _ensure_mcp_connections(self, agent: Any) -> None: - """Ensure MCP tool connections are healthy before agent execution. - - This is a workaround for an Agent Framework bug where MCP tool connections - can become stale (underlying streams closed) but is_connected remains True. - This happens when HTTP streaming responses end and GeneratorExit propagates. - - This method detects stale connections and reconnects them. It's designed to - be a no-op once the Agent Framework fixes this issue upstream. - - Args: - agent: Agent object that may have MCP tools - """ - if not hasattr(agent, "mcp_tools"): - return - - for mcp_tool in agent.mcp_tools: - if not getattr(mcp_tool, "is_connected", False): - continue - - tool_name = getattr(mcp_tool, "name", "unknown") - - try: - # Check if underlying write stream is closed - session = getattr(mcp_tool, "session", None) - if session is None: - continue - - write_stream = getattr(session, "_write_stream", None) - if write_stream is None: - continue - - # Detect stale connection: is_connected=True but stream is closed - is_closed = getattr(write_stream, "_closed", False) - if not is_closed: - continue # Connection is healthy - - # Stale connection detected - reconnect - logger.warning(f"MCP tool '{tool_name}' has stale connection (stream closed), reconnecting...") - - # Clean up old connection - try: - if hasattr(mcp_tool, "close"): - await mcp_tool.close() - except Exception as close_err: - logger.debug(f"Error closing stale MCP tool '{tool_name}': {close_err}") - # Force reset state - mcp_tool.is_connected = False - mcp_tool.session = None - - # Reconnect - if hasattr(mcp_tool, "connect"): - await mcp_tool.connect() - logger.info(f"MCP tool '{tool_name}' reconnected successfully") - - except Exception as e: - # If detection fails, log and continue - let it fail naturally during execution - logger.debug(f"Error checking MCP tool '{tool_name}' connection: {e}") - async def discover_entities(self) -> list[EntityInfo]: """Discover all available entities. @@ -395,11 +336,6 @@ async def _execute_agent( else: logger.debug(f"Executing agent with multimodal Message: {type(user_message)}") - # Workaround for MCP tool stale connection bug (GitHub issue pending) - # When HTTP streaming ends, GeneratorExit can close MCP stdio streams - # but is_connected stays True. Detect and reconnect before execution. - await self._ensure_mcp_connections(agent) - # Agent must have run() method - use stream=True for streaming if hasattr(agent, "run") and callable(agent.run): # Capture the stream reference so we can call get_final_response() diff --git a/python/packages/devui/frontend/package-lock.json b/python/packages/devui/frontend/package-lock.json index 2e6ffcfc59d..5a862cfa709 100644 --- a/python/packages/devui/frontend/package-lock.json +++ b/python/packages/devui/frontend/package-lock.json @@ -8,7 +8,7 @@ "name": "frontend", "version": "0.0.0", "dependencies": { - "@radix-ui/react-checkbox": "^1.3.11", + "@radix-ui/react-checkbox": "^1.3.12", "@radix-ui/react-dropdown-menu": "^2.1.16", "@radix-ui/react-label": "^2.1.15", "@radix-ui/react-scroll-area": "^1.2.18", @@ -698,18 +698,18 @@ } }, "node_modules/@radix-ui/react-checkbox": { - "version": "1.3.11", - "resolved": "https://registry.npmjs.org/@radix-ui/react-checkbox/-/react-checkbox-1.3.11.tgz", - "integrity": "sha512-Gnptr9pDDQxD3hgq2dtPbtrp/c2qH1mBwIzw3X/ivrMb2e1t0jMTi606fVEqFPaQR1ggXIVQWKj3P2WW9v7zGQ==", + "version": "1.3.12", + "resolved": "https://registry.npmjs.org/@radix-ui/react-checkbox/-/react-checkbox-1.3.12.tgz", + "integrity": "sha512-gNOS2lLrpQxNLWHhCX0sayfVRiyB5gQp7nQIzpl+PM1Hkab52utsKtD27alAr78uqhpvX51kwqDp71hM5hNSwg==", "license": "MIT", "dependencies": { "@radix-ui/primitive": "1.1.7", "@radix-ui/react-compose-refs": "1.1.5", "@radix-ui/react-context": "1.2.2", - "@radix-ui/react-presence": "1.1.10", - "@radix-ui/react-primitive": "2.1.10", + "@radix-ui/react-presence": "1.1.11", + "@radix-ui/react-primitive": "2.1.11", "@radix-ui/react-use-controllable-state": "1.2.6", - "@radix-ui/react-use-size": "1.1.4" + "@radix-ui/react-use-size": "1.1.5" }, "peerDependencies": { "@types/react": "*", @@ -763,9 +763,9 @@ } }, "node_modules/@radix-ui/react-checkbox/node_modules/@radix-ui/react-presence": { - "version": "1.1.10", - "resolved": "https://registry.npmjs.org/@radix-ui/react-presence/-/react-presence-1.1.10.tgz", - "integrity": "sha512-3wyzCQ6+ubRA+D4uv9m95JYLXxmOHp05qjrkjeA7uKHHtjpPggQzc6DAb0URl7j67oR0K2foO4ip27TiX037Bw==", + "version": "1.1.11", + "resolved": "https://registry.npmjs.org/@radix-ui/react-presence/-/react-presence-1.1.11.tgz", + "integrity": "sha512-Z7/atlkab36Z8hm+V8zYc79r0W+tiOB1o0tun1By94JyadkekLQmtEAnBSP9XKXBNQsStoStS4+gX10JpS5akA==", "license": "MIT", "dependencies": { "@radix-ui/react-use-layout-effect": "1.1.4" @@ -786,12 +786,12 @@ } }, "node_modules/@radix-ui/react-checkbox/node_modules/@radix-ui/react-primitive": { - "version": "2.1.10", - "resolved": "https://registry.npmjs.org/@radix-ui/react-primitive/-/react-primitive-2.1.10.tgz", - "integrity": "sha512-MucOnzh6hR5mid6VpkbglRAMYMjKLqRnGBbjXkzjK52fuQDd1qbkx78a5P40mkcnVXJdEVxm26E9OPAiUq7nBg==", + "version": "2.1.11", + "resolved": "https://registry.npmjs.org/@radix-ui/react-primitive/-/react-primitive-2.1.11.tgz", + "integrity": "sha512-RzcaSw5aKl0OPhBJ1wbolKSF6nVvN+0o/QLeIVq+09npiPdnCkPggy2k6gI6yetxl4ZyrlBPYFgCB8BQJZwXcQ==", "license": "MIT", "dependencies": { - "@radix-ui/react-slot": "1.3.3" + "@radix-ui/react-slot": "1.4.0" }, "peerDependencies": { "@types/react": "*", @@ -809,9 +809,9 @@ } }, "node_modules/@radix-ui/react-checkbox/node_modules/@radix-ui/react-slot": { - "version": "1.3.3", - "resolved": "https://registry.npmjs.org/@radix-ui/react-slot/-/react-slot-1.3.3.tgz", - "integrity": "sha512-qx7oqnYbxnK9kYI9m317qmFmEgo6ywqWvbTogdj7cL9p3/yx4M48p7Rnw5z3H890cL/ow/EeWJsuTykeZVXP5Q==", + "version": "1.4.0", + "resolved": "https://registry.npmjs.org/@radix-ui/react-slot/-/react-slot-1.4.0.tgz", + "integrity": "sha512-IuMVHZ+Ah5fkctu3X3qeFrV/ZrBcuWuDTFUUPfS/L5hvoTjzhp/HdWGE14CsQombPdEidsa33HVlYZXi49PZ1Q==", "license": "MIT", "dependencies": { "@radix-ui/react-compose-refs": "1.1.5" @@ -880,9 +880,9 @@ } }, "node_modules/@radix-ui/react-checkbox/node_modules/@radix-ui/react-use-size": { - "version": "1.1.4", - "resolved": "https://registry.npmjs.org/@radix-ui/react-use-size/-/react-use-size-1.1.4.tgz", - "integrity": "sha512-D3anSY15EJoxrihpsXI6SMrmmonnQtR2ni7arO+Lfdg3O95b9hNXxONk8jA5C8ANdF/h5HMAxejgs8PWJ6rlhw==", + "version": "1.1.5", + "resolved": "https://registry.npmjs.org/@radix-ui/react-use-size/-/react-use-size-1.1.5.tgz", + "integrity": "sha512-V1McDQkMGzgivwqdu7u96APs7oi0Jvj9LTzgq3WWrDZqxWdAqU9yZnZQqk5OizGFR8badUQwZsrlao7MOlWYOA==", "license": "MIT", "dependencies": { "@radix-ui/react-use-layout-effect": "1.1.4" diff --git a/python/packages/devui/frontend/package.json b/python/packages/devui/frontend/package.json index 9171edb8067..318634269de 100644 --- a/python/packages/devui/frontend/package.json +++ b/python/packages/devui/frontend/package.json @@ -11,7 +11,7 @@ "preview": "vite preview" }, "dependencies": { - "@radix-ui/react-checkbox": "^1.3.11", + "@radix-ui/react-checkbox": "^1.3.12", "@radix-ui/react-dropdown-menu": "^2.1.16", "@radix-ui/react-label": "^2.1.15", "@radix-ui/react-scroll-area": "^1.2.18", diff --git a/python/packages/devui/frontend/yarn.lock b/python/packages/devui/frontend/yarn.lock index 709c291522e..b0c2aa38dcc 100644 --- a/python/packages/devui/frontend/yarn.lock +++ b/python/packages/devui/frontend/yarn.lock @@ -399,18 +399,18 @@ dependencies: "@radix-ui/react-primitive" "2.1.3" -"@radix-ui/react-checkbox@^1.3.11": - version "1.3.11" - resolved "https://registry.yarnpkg.com/@radix-ui/react-checkbox/-/react-checkbox-1.3.11.tgz#2a7b4fb747b9b3ff3c30094b8fb95ff221c6a4b5" - integrity sha512-Gnptr9pDDQxD3hgq2dtPbtrp/c2qH1mBwIzw3X/ivrMb2e1t0jMTi606fVEqFPaQR1ggXIVQWKj3P2WW9v7zGQ== +"@radix-ui/react-checkbox@^1.3.12": + version "1.3.12" + resolved "https://registry.yarnpkg.com/@radix-ui/react-checkbox/-/react-checkbox-1.3.12.tgz#fb04648e4f41c4a28c2b026fc0054eb399091af8" + integrity sha512-gNOS2lLrpQxNLWHhCX0sayfVRiyB5gQp7nQIzpl+PM1Hkab52utsKtD27alAr78uqhpvX51kwqDp71hM5hNSwg== dependencies: "@radix-ui/primitive" "1.1.7" "@radix-ui/react-compose-refs" "1.1.5" "@radix-ui/react-context" "1.2.2" - "@radix-ui/react-presence" "1.1.10" - "@radix-ui/react-primitive" "2.1.10" + "@radix-ui/react-presence" "1.1.11" + "@radix-ui/react-primitive" "2.1.11" "@radix-ui/react-use-controllable-state" "1.2.6" - "@radix-ui/react-use-size" "1.1.4" + "@radix-ui/react-use-size" "1.1.5" "@radix-ui/react-collection@1.1.15": version "1.1.15" @@ -625,6 +625,13 @@ dependencies: "@radix-ui/react-use-layout-effect" "1.1.4" +"@radix-ui/react-presence@1.1.11": + version "1.1.11" + resolved "https://registry.yarnpkg.com/@radix-ui/react-presence/-/react-presence-1.1.11.tgz#6128921738f3adceebf08e0a031705b3a9bbe345" + integrity sha512-Z7/atlkab36Z8hm+V8zYc79r0W+tiOB1o0tun1By94JyadkekLQmtEAnBSP9XKXBNQsStoStS4+gX10JpS5akA== + dependencies: + "@radix-ui/react-use-layout-effect" "1.1.4" + "@radix-ui/react-presence@1.1.5": version "1.1.5" resolved "https://registry.npmjs.org/@radix-ui/react-presence/-/react-presence-1.1.5.tgz" @@ -640,6 +647,13 @@ dependencies: "@radix-ui/react-slot" "1.3.3" +"@radix-ui/react-primitive@2.1.11": + version "2.1.11" + resolved "https://registry.yarnpkg.com/@radix-ui/react-primitive/-/react-primitive-2.1.11.tgz#21d0e90044a458421cacd821f1630b488b4ba420" + integrity sha512-RzcaSw5aKl0OPhBJ1wbolKSF6nVvN+0o/QLeIVq+09npiPdnCkPggy2k6gI6yetxl4ZyrlBPYFgCB8BQJZwXcQ== + dependencies: + "@radix-ui/react-slot" "1.4.0" + "@radix-ui/react-primitive@2.1.3": version "2.1.3" resolved "https://registry.npmjs.org/@radix-ui/react-primitive/-/react-primitive-2.1.3.tgz" @@ -726,6 +740,13 @@ dependencies: "@radix-ui/react-compose-refs" "1.1.5" +"@radix-ui/react-slot@1.4.0": + version "1.4.0" + resolved "https://registry.yarnpkg.com/@radix-ui/react-slot/-/react-slot-1.4.0.tgz#386c44d27af1baab2d4cb9989ca5bc7565c3b50a" + integrity sha512-IuMVHZ+Ah5fkctu3X3qeFrV/ZrBcuWuDTFUUPfS/L5hvoTjzhp/HdWGE14CsQombPdEidsa33HVlYZXi49PZ1Q== + dependencies: + "@radix-ui/react-compose-refs" "1.1.5" + "@radix-ui/react-switch@^1.3.7": version "1.3.7" resolved "https://registry.yarnpkg.com/@radix-ui/react-switch/-/react-switch-1.3.7.tgz#54dc0d331145418c2e3ac6545c166b89cb1e186e" @@ -862,6 +883,13 @@ dependencies: "@radix-ui/react-use-layout-effect" "1.1.4" +"@radix-ui/react-use-size@1.1.5": + version "1.1.5" + resolved "https://registry.yarnpkg.com/@radix-ui/react-use-size/-/react-use-size-1.1.5.tgz#b4b5933720960a660ea19ea6f22b3d7027d797dc" + integrity sha512-V1McDQkMGzgivwqdu7u96APs7oi0Jvj9LTzgq3WWrDZqxWdAqU9yZnZQqk5OizGFR8badUQwZsrlao7MOlWYOA== + dependencies: + "@radix-ui/react-use-layout-effect" "1.1.4" + "@radix-ui/react-visually-hidden@1.2.11": version "1.2.11" resolved "https://registry.npmjs.org/@radix-ui/react-visually-hidden/-/react-visually-hidden-1.2.11.tgz" diff --git a/python/packages/devui/pyproject.toml b/python/packages/devui/pyproject.toml index dff546f7227..fc4dfed084d 100644 --- a/python/packages/devui/pyproject.toml +++ b/python/packages/devui/pyproject.toml @@ -4,7 +4,7 @@ description = "Debug UI for Microsoft Agent Framework with OpenAI-compatible API authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://github.com/microsoft/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,7 +24,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.19.0,<2", + "agent-framework-core>=1.22.0,<2", "openai>=2.45.0,<4", "opentelemetry-sdk>=1.39.0,<2", "fastapi>=0.115.0,<0.142.0", @@ -35,7 +35,7 @@ classifiers = [ dev = [ "pytest==9.1.1", "watchdog==6.0.0", - "agent-framework-orchestrations==1.0.0rc1", + "agent-framework-orchestrations>=1.0,<2.0", ] all = [ "pytest==9.1.1", diff --git a/python/packages/devui/tests/devui/test_discovery.py b/python/packages/devui/tests/devui/test_discovery.py index f7cd22e7be5..e36659cb608 100644 --- a/python/packages/devui/tests/devui/test_discovery.py +++ b/python/packages/devui/tests/devui/test_discovery.py @@ -56,6 +56,27 @@ async def test_empty_directory(): assert len(entities) == 0 +async def test_discover_file_entity_with_annotated_export(): + """A file exporting `agent: Agent = ...` is discovered like `agent = ...`.""" + with tempfile.TemporaryDirectory() as temp_dir: + (Path(temp_dir) / "typed_agent.py").write_text("agent: object = object()\n") + (Path(temp_dir) / "declared_only.py").write_text("agent: object\n") + (Path(temp_dir) / "conditional_agent.py").write_text("if True:\n agent: object = object()\n") + (Path(temp_dir) / "local_only.py").write_text( + "def build():\n agent: object = object()\n return agent\n\n\n" + "class Holder:\n workflow = object()\n\n\n" + "def other():\n global name\n agent = object()\n" + ) + (Path(temp_dir) / "global_factory.py").write_text( + "def build():\n global agent\n if True:\n agent = object()\n\n\nbuild()\n" + ) + + discovery = EntityDiscovery(temp_dir) + entities = await discovery.discover_entities() + + assert sorted(entity.id for entity in entities) == ["conditional_agent", "global_factory", "typed_agent"] + + async def test_discovery_accepts_agents_with_only_run(): """Test that discovery accepts agents with only run() method. diff --git a/python/packages/duckdb/pyproject.toml b/python/packages/duckdb/pyproject.toml index f5bb7f0606c..e618d37bdc0 100644 --- a/python/packages/duckdb/pyproject.toml +++ b/python/packages/duckdb/pyproject.toml @@ -4,7 +4,7 @@ description = "DuckDB vector stores for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com" }] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261002" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/foundry/pyproject.toml b/python/packages/foundry/pyproject.toml index 44331c33b4d..a0f6cb486e5 100644 --- a/python/packages/foundry/pyproject.toml +++ b/python/packages/foundry/pyproject.toml @@ -4,7 +4,7 @@ description = "Microsoft Foundry integrations for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.14.1" +version = "1.15.0" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,8 +24,8 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.21.0,<2", - "agent-framework-openai>=1.15.0,<2", + "agent-framework-core>=1.22.0,<2", + "agent-framework-openai>=1.17.0,<2", "aiohttp>=3.9,<4", "azure-ai-inference>=1.0.0b9,<1.0.0b10", "azure-ai-projects>=2.2.0,<2.8.0", diff --git a/python/packages/foundry_hosting/agent_framework_foundry_hosting/_responses.py b/python/packages/foundry_hosting/agent_framework_foundry_hosting/_responses.py index a2d5cf4e1d1..001ebb3f98b 100644 --- a/python/packages/foundry_hosting/agent_framework_foundry_hosting/_responses.py +++ b/python/packages/foundry_hosting/agent_framework_foundry_hosting/_responses.py @@ -98,7 +98,7 @@ TextContentBuilder, ) from azure.ai.agentserver.responses.streaming._checkpoint import ResponseCheckpointEvent -from mcp import McpError +from mcp import MCPError from typing_extensions import Any from ._agent_source import is_agent, resolve_agent, validate_agent_source @@ -601,8 +601,8 @@ def consent_url_from_error(exc: BaseException) -> list[ConsentError] | None: Returns: The consent URL(s) extracted from the error, or ``None`` if no consent error was found. """ - inner_exception = next((arg for arg in exc.args if isinstance(arg, McpError)), None) - if inner_exception is not None and inner_exception.error.code == CONSENT_ERROR_CODE: + inner_exception = next((arg for arg in exc.args if isinstance(arg, MCPError)), None) + if inner_exception is not None and inner_exception.code == CONSENT_ERROR_CODE: # Parse the error message # The error message is structured with the following format: # "tools/list failed for 1 tool source(s), succeeded for 0 tool source(s) {"errors":[{"name": ..." diff --git a/python/packages/foundry_hosting/agent_framework_foundry_hosting/_toolbox.py b/python/packages/foundry_hosting/agent_framework_foundry_hosting/_toolbox.py index 564b86fe42e..294afbbe9db 100644 --- a/python/packages/foundry_hosting/agent_framework_foundry_hosting/_toolbox.py +++ b/python/packages/foundry_hosting/agent_framework_foundry_hosting/_toolbox.py @@ -12,7 +12,7 @@ from typing import TYPE_CHECKING, Any, cast from urllib.parse import urlsplit -import httpx +import httpx2 as httpx from agent_framework import ( CachingSkillsSource, DeduplicatingSkillsSource, @@ -143,7 +143,7 @@ def sync_auth_flow(self, request: httpx.Request) -> Generator[httpx.Request, htt close() raise RuntimeError( "An async credential cannot be used with the synchronous auth flow; " - "use a synchronous TokenCredential or drive the toolbox with an httpx.AsyncClient." + "use a synchronous TokenCredential or drive the toolbox with an httpx2.AsyncClient." ) self._apply_headers(request, token) yield request @@ -361,17 +361,13 @@ async def _read_resource(self, uri: AnyUrl) -> ReadResourceResult: """Read a Toolbox resource under the current platform-header identity.""" headers = self._effective_resource_headers() async with self._call_headers_lock: - await self._ensure_session_identity(headers, {}) - session = self.session - if session is None: - raise RuntimeError( - "FoundryToolbox is not connected, so its resources cannot be read. " - "Pass the toolbox to the agent (tools=...) or enter it as an async " - "context manager before reading resources." - ) + connection = self._require_connection() + if headers or connection.is_framework_owned: + await self._ensure_session_identity(headers, {}) + connection = self._require_connection() self._active_call_headers = headers try: - return await session.read_resource(uri) + return await connection.read_resource(cast(str, uri)) finally: self._active_call_headers = None diff --git a/python/packages/foundry_hosting/pyproject.toml b/python/packages/foundry_hosting/pyproject.toml index 5c4a8445739..c8a5098b55e 100644 --- a/python/packages/foundry_hosting/pyproject.toml +++ b/python/packages/foundry_hosting/pyproject.toml @@ -4,7 +4,7 @@ description = "Foundry Hosting integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,12 +24,13 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.20.0,<2", + "agent-framework-core>=1.22.0,<2", "azure-ai-agentserver-core>=2.1.0,<3", "azure-ai-agentserver-responses>=2.2.0b1,<3", "azure-ai-agentserver-invocations>=1.1.0,<2", "httpx>=0.28,<1", - "mcp>=1.24.0,<2", + "httpx2>=2.0.0,<3", + "mcp>=2.2.0,<3", ] [tool.uv] diff --git a/python/packages/foundry_hosting/tests/test_responses.py b/python/packages/foundry_hosting/tests/test_responses.py index 71407ce0426..b3f033acd60 100644 --- a/python/packages/foundry_hosting/tests/test_responses.py +++ b/python/packages/foundry_hosting/tests/test_responses.py @@ -79,8 +79,7 @@ ResponseObject, ) from azure.ai.agentserver.responses.streaming._checkpoint import ResponseCheckpointEvent -from mcp import McpError -from mcp.types import ErrorData +from mcp import MCPError from openai import AsyncOpenAI, DefaultAsyncHttpxClient from openai.types.responses.response_input_item_param import ResponseInputItemParam from openai.types.responses.response_usage import ResponseUsage as OpenAIResponseUsage @@ -7571,12 +7570,12 @@ def _make_consent_error( """Build an exception wrapping a Foundry MCP gateway consent error. Mirrors the real-world wrapping produced by ``MCPStreamableHTTPTool.__aenter__``, - which catches connection-time ``McpError``s and re-raises them as a + which catches connection-time ``MCPError``s and re-raises them as a ``ToolExecutionException`` (an ``AgentFrameworkException`` subclass) with the original error attached via ``inner_exception``. ``consent_url_from_error`` - then finds the wrapped ``McpError`` in ``exc.args``. + then finds the wrapped ``MCPError`` in ``exc.args``. - The McpError message uses the structured Foundry MCP gateway format: + The MCPError message uses the structured Foundry MCP gateway format: a human-readable prefix followed by a JSON document describing each failed tool source and its consent URL. """ @@ -7595,7 +7594,7 @@ def _make_consent_error( ] }) message = f"tools/list failed for 1 tool source(s), succeeded for 0 tool source(s) {payload}" - inner = McpError(ErrorData(code=CONSENT_ERROR_CODE, message=message)) + inner = MCPError(CONSENT_ERROR_CODE, message) return ToolExecutionException("MCP consent required", inner_exception=inner) @@ -7618,21 +7617,21 @@ def test_returns_none_when_no_mcp_error_in_args(self) -> None: assert consent_url_from_error(Exception("boom")) is None def test_returns_none_when_mcp_error_has_different_code(self) -> None: - inner = McpError(ErrorData(code=-32000, message="some other error")) + inner = MCPError(-32000, "some other error") exc = Exception("wrapped", inner) assert consent_url_from_error(exc) is None def test_returns_none_for_bare_mcp_error_without_wrapping(self) -> None: - # `args` of a bare McpError holds the message string, not an McpError + # `args` of a bare MCPError holds the message string, not an MCPError # instance, so it does not match the wrapping pattern produced by the # MCP client when it bubbles consent errors up. - bare = McpError(ErrorData(code=CONSENT_ERROR_CODE, message="https://x")) + bare = MCPError(CONSENT_ERROR_CODE, "https://x") assert consent_url_from_error(bare) is None def test_returns_none_when_message_has_no_json(self) -> None: from agent_framework.exceptions import ToolExecutionException - inner = McpError(ErrorData(code=CONSENT_ERROR_CODE, message="no json here")) + inner = MCPError(CONSENT_ERROR_CODE, "no json here") exc = ToolExecutionException("MCP consent required", inner_exception=inner) assert consent_url_from_error(exc) is None diff --git a/python/packages/foundry_hosting/tests/test_toolbox.py b/python/packages/foundry_hosting/tests/test_toolbox.py index 1a4b586ce0b..324bc0cb01b 100644 --- a/python/packages/foundry_hosting/tests/test_toolbox.py +++ b/python/packages/foundry_hosting/tests/test_toolbox.py @@ -13,7 +13,7 @@ from typing import Any, cast from unittest.mock import AsyncMock, patch -import httpx +import httpx2 as httpx import pytest from agent_framework import MCPStreamableHTTPTool, SkillsProvider, SkillsSourceContext, SupportsAgentRun from agent_framework.exceptions import ToolException, ToolExecutionException @@ -657,18 +657,54 @@ async def get_skills(self, context: SkillsSourceContext) -> list[str]: resource_session = provider() assert provider() is resource_session first_uri = AnyUrl("skill://first") - await resource_session.read_resource(first_uri) + await resource_session.read_resource(cast(str, first_uri)) sentinel_session.read_resource.assert_awaited_once_with(first_uri) new_session = AsyncMock() toolbox.session = new_session # type: ignore second_uri = AnyUrl("skill://second") - await resource_session.read_resource(second_uri) + await resource_session.read_resource(cast(str, second_uri)) new_session.read_resource.assert_awaited_once_with(second_uri) # No archive options set -> MCPSkillsSource is constructed with defaults. assert captured_kwargs == {} +async def test_skills_source_keeps_identity_adapter_when_high_level_client_changes( + monkeypatch: pytest.MonkeyPatch, +) -> None: + toolbox = FoundryToolbox( + _FakeCredential(), # type: ignore + url="https://h/toolboxes/tb/mcp", + ) + sentinel_client = object() + sentinel_session = object() + current = {"connection": SimpleNamespace(client=sentinel_client, session=sentinel_session)} + monkeypatch.setattr(toolbox, "_require_connection", lambda: current["connection"]) + + captured: dict[str, Callable[[], object]] = {} + + class _StubSkillsSource: + def __init__(self, *, session_provider: Callable[[], object]) -> None: + captured["session_provider"] = session_provider + + async def get_skills(self, context: SkillsSourceContext) -> list[str]: + return ["skill-a"] + + monkeypatch.setattr("agent_framework_foundry_hosting._toolbox.MCPSkillsSource", _StubSkillsSource) + + result = await _FoundryToolboxSkillsSource(toolbox).get_skills(_source_context()) + + assert result == ["skill-a"] + provider = captured["session_provider"] + resource_session = provider() + assert resource_session is not sentinel_client + assert provider() is resource_session + + replacement_client = object() + current["connection"] = SimpleNamespace(client=replacement_client, session=object()) + assert provider() is resource_session + + async def test_skills_source_forwards_archive_options(monkeypatch: pytest.MonkeyPatch) -> None: toolbox = FoundryToolbox( _FakeCredential(), # type: ignore @@ -709,7 +745,7 @@ async def test_skills_source_requires_connection_via_provider() -> None: # actually closed, the read still surfaces the same clear error. toolbox.session = None with pytest.raises(RuntimeError, match="not connected"): - await resource_session.read_resource(AnyUrl("skill://closed")) + await resource_session.read_resource(cast(str, AnyUrl("skill://closed"))) class _FakeSkill: diff --git a/python/packages/foundry_local/pyproject.toml b/python/packages/foundry_local/pyproject.toml index 06faef1ee7d..43b56795cfd 100644 --- a/python/packages/foundry_local/pyproject.toml +++ b/python/packages/foundry_local/pyproject.toml @@ -4,7 +4,7 @@ description = "Foundry Local integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b260730" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/gemini/pyproject.toml b/python/packages/gemini/pyproject.toml index 1e39d893a12..f1582f54229 100644 --- a/python/packages/gemini/pyproject.toml +++ b/python/packages/gemini/pyproject.toml @@ -4,7 +4,7 @@ description = "Google Gemini integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -25,7 +25,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.20.0,<2", + "agent-framework-core>=1.22.0,<2", "google-genai>=2.25.0,<3.0.0", ] diff --git a/python/packages/github_copilot/pyproject.toml b/python/packages/github_copilot/pyproject.toml index 11dddc60a34..caa0cb7706e 100644 --- a/python/packages/github_copilot/pyproject.toml +++ b/python/packages/github_copilot/pyproject.toml @@ -4,7 +4,7 @@ description = "GitHub Copilot integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.11" -version = "2.0.2" +version = "2.1.0" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -23,7 +23,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.21.0,<2", + "agent-framework-core>=1.22.0,<2", "github-copilot-sdk>=1.0.16,<2.0; python_version >= '3.11'", ] diff --git a/python/packages/hosting-a2a/pyproject.toml b/python/packages/hosting-a2a/pyproject.toml index 59fb88daa94..e07b2fcc5e2 100644 --- a/python/packages/hosting-a2a/pyproject.toml +++ b/python/packages/hosting-a2a/pyproject.toml @@ -4,7 +4,7 @@ description = "A2A conversion helpers for app-owned Agent Framework hosting." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a260918" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -25,8 +25,8 @@ classifiers = [ ] dependencies = [ "a2a-sdk>=1.0.0,<2", - "agent-framework-core>=1.19.0,<2", - "agent-framework-hosting==1.0.0a260730", + "agent-framework-core>=1.22.0,<2", + "agent-framework-hosting==1.0.0a261015", ] [tool.uv] diff --git a/python/packages/hosting-mcp/agent_framework_hosting_mcp/_agent_tool.py b/python/packages/hosting-mcp/agent_framework_hosting_mcp/_agent_tool.py index 8905bbda4fa..4a551e5a5ba 100644 --- a/python/packages/hosting-mcp/agent_framework_hosting_mcp/_agent_tool.py +++ b/python/packages/hosting-mcp/agent_framework_hosting_mcp/_agent_tool.py @@ -11,7 +11,7 @@ from agent_framework import AgentResponse, Message, SupportsAgentRun from agent_framework._telemetry import mark_feature_used from agent_framework_hosting import AgentRunArgs, AgentState -from mcp import types +from mcp import MCPError, types from ._conversion import mcp_from_run, mcp_to_run from ._feature_usage import FeatureIndex @@ -86,11 +86,11 @@ def __init__( name for name in (*self.parameters, *self.chat_option_parameters) if name in required_names ) - async def list_tools(self) -> list[types.Tool]: + async def list_tools(self) -> types.ListToolsResult: """Return the native MCP tool definition for the target agent.""" mark_feature_used(FeatureIndex.HOSTING_MCP) target = await self.state.get_target() - return [self._tool_for_target(target)] + return types.ListToolsResult(tools=[self._tool_for_target(target)]) def _tool_for_target(self, target: AgentT) -> types.Tool: """Create the native MCP tool definition for a resolved target.""" @@ -111,7 +111,7 @@ def _tool_for_target(self, target: AgentT) -> types.Tool: return types.Tool( name=tool_name, description=self._description if self._description is not None else target.description or "", - inputSchema={ + input_schema={ "type": "object", "properties": properties, "required": [self.argument_name, *self.required_parameters], @@ -135,7 +135,7 @@ async def call_tool( self, name: str, arguments: Mapping[str, Any] | None, - ) -> list[types.ContentBlock]: + ) -> types.CallToolResult: """Run the target agent for a native MCP ``call_tool`` handler. Args: @@ -143,16 +143,16 @@ async def call_tool( arguments: Native MCP tool arguments. Returns: - Native MCP content blocks for the completed tool result. + Native MCP ``CallToolResult`` for the completed tool result. Raises: - ValueError: If the tool name or configured session id is invalid. + MCPError: If the tool name or configured session id is invalid. """ mark_feature_used(FeatureIndex.HOSTING_MCP) target = await self.state.get_target() tool = self._tool_for_target(target) if name != tool.name: - raise ValueError(f"Unknown MCP tool: {name}") + raise MCPError(types.INVALID_PARAMS, f"Unknown MCP tool: {name}") run = self.mcp_to_run(arguments) if self.session_id_parameter is None: @@ -164,11 +164,13 @@ async def call_tool( stream=False, ), ) - return self.mcp_from_run(result) + return types.CallToolResult(content=self.mcp_from_run(result)) session_id = arguments.get(self.session_id_parameter) if arguments else None if not isinstance(session_id, str) or not session_id: - raise ValueError(f"MCP tool argument '{self.session_id_parameter}' must be a non-empty string.") + raise MCPError( + types.INVALID_PARAMS, f"MCP tool argument '{self.session_id_parameter}' must be a non-empty string." + ) session = await self.state.get_or_create_session(session_id) result = cast( "AgentResponse[Any]", @@ -180,4 +182,4 @@ async def call_tool( ), ) await self.state.set_session(session_id, session) - return self.mcp_from_run(result) + return types.CallToolResult(content=self.mcp_from_run(result)) diff --git a/python/packages/hosting-mcp/agent_framework_hosting_mcp/_conversion.py b/python/packages/hosting-mcp/agent_framework_hosting_mcp/_conversion.py index b91d30570b7..91d8381e8c2 100644 --- a/python/packages/hosting-mcp/agent_framework_hosting_mcp/_conversion.py +++ b/python/packages/hosting-mcp/agent_framework_hosting_mcp/_conversion.py @@ -11,7 +11,7 @@ from agent_framework import AgentResponse, ChatOptions, Content, Message from agent_framework_hosting import AgentRunArgs -from mcp import types +from mcp import MCPError, types logger = logging.getLogger("agent_framework.hosting.mcp") @@ -39,14 +39,14 @@ def mcp_to_run( Arguments corresponding to ``Agent.run(...)``. Raises: - ValueError: If the selected argument is missing or is not a string. + MCPError: If the selected argument is missing or is not a string. """ if arguments is None or argument_name not in arguments: - raise ValueError(f"MCP tool arguments must include a '{argument_name}' string.") + raise MCPError(types.INVALID_PARAMS, f"MCP tool arguments must include a '{argument_name}' string.") message_value = arguments[argument_name] if not isinstance(message_value, str): - raise ValueError(f"MCP tool argument '{argument_name}' must be a string.") + raise MCPError(types.INVALID_PARAMS, f"MCP tool argument '{argument_name}' must be a string.") options = {name: arguments[name] for name in chat_option_arguments if name in arguments} return AgentRunArgs( @@ -98,8 +98,8 @@ def mcp_from_run( types.ResourceLink( type="resource_link", name=name, - uri=content.uri, # pyright: ignore[reportArgumentType] - mimeType=content.media_type, + uri=content.uri, + mime_type=content.media_type, _meta=metadata, ) ) @@ -117,7 +117,7 @@ def mcp_from_run( types.ImageContent( type="image", data=encoded, - mimeType=content.media_type, + mime_type=content.media_type, _meta=metadata, ) ) @@ -126,7 +126,7 @@ def mcp_from_run( types.AudioContent( type="audio", data=encoded, - mimeType=content.media_type, + mime_type=content.media_type, _meta=metadata, ) ) @@ -140,9 +140,9 @@ def mcp_from_run( types.EmbeddedResource( type="resource", resource=types.BlobResourceContents( - uri=resource_uri, # pyright: ignore[reportArgumentType] + uri=resource_uri, blob=encoded, - mimeType=content.media_type, + mime_type=content.media_type, ), _meta=metadata, ) diff --git a/python/packages/hosting-mcp/agent_framework_hosting_mcp/_workflow_tool.py b/python/packages/hosting-mcp/agent_framework_hosting_mcp/_workflow_tool.py index b3018e5a31f..a6325041fee 100644 --- a/python/packages/hosting-mcp/agent_framework_hosting_mcp/_workflow_tool.py +++ b/python/packages/hosting-mcp/agent_framework_hosting_mcp/_workflow_tool.py @@ -11,8 +11,8 @@ from agent_framework import AgentResponse, Message, Workflow, WorkflowRunResult from agent_framework._telemetry import mark_feature_used from agent_framework_hosting import WorkflowState -from mcp import types -from pydantic import TypeAdapter +from mcp import MCPError, types +from pydantic import TypeAdapter, ValidationError from ._conversion import mcp_from_run from ._feature_usage import FeatureIndex @@ -53,11 +53,11 @@ def __init__( self._description = description self.argument_name = argument_name - async def list_tools(self) -> list[types.Tool]: + async def list_tools(self) -> types.ListToolsResult: """Return the native MCP tool definition for the target workflow.""" mark_feature_used(FeatureIndex.HOSTING_MCP) workflow = await self.state.get_target() - return [self._tool_for_workflow(workflow)] + return types.ListToolsResult(tools=[self._tool_for_workflow(workflow)]) def _tool_for_workflow(self, workflow: WorkflowT) -> types.Tool: tool_name = self._name @@ -77,7 +77,7 @@ def _tool_for_workflow(self, workflow: WorkflowT) -> types.Tool: return types.Tool( name=tool_name, description=self._description if self._description is not None else workflow.description or "", - inputSchema=input_schema, + input_schema=input_schema, ) def _input_adapter(self, workflow: WorkflowT) -> TypeAdapter[Any]: @@ -91,11 +91,22 @@ def _input_adapter(self, workflow: WorkflowT) -> TypeAdapter[Any]: def _workflow_input(self, workflow: WorkflowT, arguments: Mapping[str, Any] | None) -> Any: input_adapter = self._input_adapter(workflow) input_schema = input_adapter.json_schema() + if input_schema.get("type") == "object": - return input_adapter.validate_python(dict(arguments or {})) - if arguments is None or self.argument_name not in arguments: - raise ValueError(f"MCP tool arguments must include '{self.argument_name}'.") - return input_adapter.validate_python(arguments[self.argument_name]) + input_value = dict(arguments or {}) + else: + if arguments is None or self.argument_name not in arguments: + raise MCPError( + types.INVALID_PARAMS, + f"MCP tool arguments must include '{self.argument_name}'.", + ) + input_value = arguments[self.argument_name] + + try: + return input_adapter.validate_python(input_value) + except ValidationError as exc: + # We raise MCPError only for validation errors which pertain to the input + raise MCPError(types.INVALID_PARAMS, str(exc)) from exc def mcp_from_run(self, result: WorkflowRunResult) -> list[types.ContentBlock]: """Convert completed workflow outputs into native MCP content blocks.""" @@ -124,7 +135,7 @@ async def call_tool( self, name: str, arguments: Mapping[str, Any] | None, - ) -> list[types.ContentBlock]: + ) -> types.CallToolResult: """Run the target workflow for a native MCP ``call_tool`` handler. Args: @@ -141,7 +152,7 @@ async def call_tool( workflow = await self.state.get_target() tool = self._tool_for_workflow(workflow) if name != tool.name: - raise ValueError(f"Unknown MCP tool: {name}") + raise MCPError(types.INVALID_PARAMS, f"Unknown MCP tool: {name}") result = await workflow.run(self._workflow_input(workflow, arguments), stream=False) - return self.mcp_from_run(result) + return types.CallToolResult(content=self.mcp_from_run(result)) diff --git a/python/packages/hosting-mcp/pyproject.toml b/python/packages/hosting-mcp/pyproject.toml index fbc6c6c1926..2c007ed45a3 100644 --- a/python/packages/hosting-mcp/pyproject.toml +++ b/python/packages/hosting-mcp/pyproject.toml @@ -4,7 +4,7 @@ description = "Agent and workflow MCP tool adapters for app-owned hosting." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a260918" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -25,8 +25,8 @@ classifiers = [ ] dependencies = [ "agent-framework-core>=1.19.0,<2", - "agent-framework-hosting==1.0.0a260730", - "mcp>=1.11.0,<2", + "agent-framework-hosting==1.0.0a261015", + "mcp>=2.2.0,<3", "pydantic>=2,<3", ] diff --git a/python/packages/hosting-mcp/tests/hosting_mcp/test_agent_tool.py b/python/packages/hosting-mcp/tests/hosting_mcp/test_agent_tool.py index f3aec8a0126..5dee3253088 100644 --- a/python/packages/hosting-mcp/tests/hosting_mcp/test_agent_tool.py +++ b/python/packages/hosting-mcp/tests/hosting_mcp/test_agent_tool.py @@ -4,7 +4,9 @@ from collections.abc import Awaitable, Mapping, Sequence from typing import Any +from unittest.mock import AsyncMock, patch +import pytest from agent_framework import ( Agent, BaseChatClient, @@ -16,7 +18,8 @@ ResponseStream, ) from agent_framework_hosting import AgentState -from mcp import types +from mcp import Client, MCPError, types +from mcp.server import Server, ServerRequestContext from pytest import raises from agent_framework_hosting_mcp import AgentMCPTool @@ -66,13 +69,15 @@ async def test_agent_tool_generates_schema_from_agent_with_overrides() -> None: }, ) - definitions = await tool.list_tools() + list_tools_result = await tool.list_tools() + result_tools = list_tools_result.tools - assert len(definitions) == 1 - definition = definitions[0] - assert definition.name == "research" - assert definition.description == "Tool description" - assert definition.inputSchema == { + assert list_tools_result.result_type == "complete" + assert len(result_tools) == 1 + result_tool = result_tools[0] + assert result_tool.name == "research" + assert result_tool.description == "Tool description" + assert result_tool.input_schema == { "type": "object", "properties": { "prompt": {"type": "string", "description": "Research request"}, @@ -102,10 +107,10 @@ async def test_agent_tool_uses_agent_metadata_by_default() -> None: agent = Agent(client=RecordingClient(), name="Research Agent", description="Agent description") tool: AgentMCPTool[Any] = AgentMCPTool(agent) - definition = (await tool.list_tools())[0] + result_tool = (await tool.list_tools()).tools[0] - assert definition.name == "Research_Agent" - assert definition.description == "Agent description" + assert result_tool.name == "Research_Agent" + assert result_tool.description == "Agent description" async def test_agent_tool_runs_with_agent_state_session() -> None: @@ -126,10 +131,16 @@ async def test_agent_tool_runs_with_agent_state_session() -> None: first = await tool.call_tool("session-agent", {"task": "first", "session_id": "session-1"}) second = await tool.call_tool("session-agent", {"task": "second", "session_id": "session-1"}) - assert isinstance(first[0], types.TextContent) - assert first[0].text == "response: first" - assert isinstance(second[0], types.TextContent) - assert second[0].text == "response: second" + assert first.result_type == "complete" + assert not first.is_error + assert isinstance(first.content[0], types.TextContent) + assert first.content[0].text == "response: first" + + assert second.result_type == "complete" + assert not second.is_error + assert isinstance(second.content[0], types.TextContent) + assert second.content[0].text == "response: second" + assert client.calls[0] == ["first"] assert client.calls[1] == ["first", "response: first", "second"] assert await state.session_store.get("session-1") is not None @@ -150,6 +161,84 @@ async def test_agent_tool_always_requires_session_parameter() -> None: session_id_parameter="session_id", ) - definition = (await tool.list_tools())[0] + definition = (await tool.list_tools()).tools[0] + + assert definition.input_schema["required"] == ["task", "session_id"] + + +async def test_agent_tool_unknown_tool_name() -> None: + agent = Agent(client=RecordingClient(), name="agent") + tool: AgentMCPTool[Any] = AgentMCPTool( + agent, parameters={"session_id": {"type": "string"}}, session_id_parameter="session_id", name="available_tool" + ) + + with raises(MCPError, match="Unknown MCP tool") as exc_info: + await tool.call_tool("made_up_tool", None) + + assert exc_info.value.code == types.INVALID_PARAMS + + +async def test_agent_tool_rejects_missing_runtime_session_id() -> None: + agent = Agent(client=RecordingClient(), name="agent") + tool: AgentMCPTool[Any] = AgentMCPTool( + agent, + parameters={"session_id": {"type": "string"}}, + session_id_parameter="session_id", + ) + + with raises(MCPError) as exc_info: + await tool.call_tool("agent", {"task": "hello"}) + + assert exc_info.value.code == types.INVALID_PARAMS + + +async def test_agent_tool_propagates_agent_execution_failure() -> None: + agent = Agent(client=RecordingClient(), name="agent") + tool: AgentMCPTool[Any] = AgentMCPTool(agent) + + with ( + patch.object(agent, "run", AsyncMock(side_effect=RuntimeError("agent execution failed"))), + raises(RuntimeError, match="agent execution failed"), + ): + await tool.call_tool("agent", {"task": "hello"}) + + +@pytest.mark.parametrize( + ("mode", "expected_version"), + [ + ("auto", "2026-07-28"), + ("legacy", "2025-11-25"), + ], +) +async def test_agent_tool_serves_both_protocol_eras( + mode: str, + expected_version: str, +) -> None: + agent = Agent(client=RecordingClient(), name="agent") + agent_tool: AgentMCPTool[Any] = AgentMCPTool(agent) + + async def list_tools( + _ctx: ServerRequestContext[dict[str, Any]], _params: types.PaginatedRequestParams | None + ) -> types.ListToolsResult: + return await agent_tool.list_tools() + + async def call_tool( + _ctx: ServerRequestContext[dict[str, Any]], params: types.CallToolRequestParams + ) -> types.CallToolResult: + return await agent_tool.call_tool(params.name, params.arguments or {}) + + server = Server( + "test-server", + on_list_tools=list_tools, + on_call_tool=call_tool, + ) + + async with Client(server, mode=mode) as mcp_client: + tools = await mcp_client.list_tools() + result = await mcp_client.call_tool("agent", {"task": "hello"}) - assert definition.inputSchema["required"] == ["task", "session_id"] + assert mcp_client.protocol_version == expected_version + assert [tool.name for tool in tools.tools] == ["agent"] + assert result.result_type == "complete" + assert not result.is_error + assert result.content diff --git a/python/packages/hosting-mcp/tests/hosting_mcp/test_conversion.py b/python/packages/hosting-mcp/tests/hosting_mcp/test_conversion.py index 21de73f7afc..af133c7ec28 100644 --- a/python/packages/hosting-mcp/tests/hosting_mcp/test_conversion.py +++ b/python/packages/hosting-mcp/tests/hosting_mcp/test_conversion.py @@ -4,6 +4,7 @@ from agent_framework import AgentResponse, Content, Message from mcp import types +from mcp.shared.exceptions import MCPError from pytest import raises from agent_framework_hosting_mcp import mcp_from_run, mcp_to_run @@ -34,12 +35,12 @@ def test_mcp_to_run_converts_selected_argument() -> None: def test_mcp_to_run_rejects_missing_argument() -> None: - with raises(ValueError, match="'task' string"): + with raises(MCPError, match="'task' string"): mcp_to_run({}) def test_mcp_to_run_rejects_non_string_argument() -> None: - with raises(ValueError, match="'task' must be a string"): + with raises(MCPError, match="'task' must be a string"): mcp_to_run({"task": 42}) @@ -71,11 +72,11 @@ def test_mcp_from_run_converts_final_response() -> None: assert blocks[1].name == "image.png" assert isinstance(blocks[2], types.ImageContent) assert blocks[2].data == "aW1hZ2U=" - assert blocks[2].mimeType == "image/png" + assert blocks[2].mime_type == "image/png" assert blocks[2].meta == {"source": "image"} assert isinstance(blocks[3], types.AudioContent) assert blocks[3].data == "YXVkaW8=" - assert blocks[3].mimeType == "audio/wav" + assert blocks[3].mime_type == "audio/wav" assert isinstance(blocks[4], types.EmbeddedResource) assert isinstance(blocks[4].resource, types.BlobResourceContents) assert str(blocks[4].resource.uri) == "af://binary" diff --git a/python/packages/hosting-mcp/tests/hosting_mcp/test_integration.py b/python/packages/hosting-mcp/tests/hosting_mcp/test_integration.py index 1b8d4b75cee..d1ac00060ed 100644 --- a/python/packages/hosting-mcp/tests/hosting_mcp/test_integration.py +++ b/python/packages/hosting-mcp/tests/hosting_mcp/test_integration.py @@ -22,6 +22,7 @@ ResponseStream, ) from mcp import types +from mcp.server import ServerRequestContext from mcp.server.lowlevel import Server from mcp.server.streamable_http_manager import StreamableHTTPSessionManager from starlette.applications import Starlette @@ -63,16 +64,21 @@ async def test_mcp_tool_calls_locally_hosted_agent() -> None: name="run_agent", chat_option_parameters={"reasoning_effort": {"type": "string"}}, ) - mcp_server = Server("hosting-mcp-integration") - @mcp_server.list_tools() - async def list_tools() -> list[types.Tool]: + async def list_tools( + _ctx: ServerRequestContext[dict[str, Any]], params: types.PaginatedRequestParams | None + ) -> types.ListToolsResult: return await agent_tool.list_tools() - @mcp_server.call_tool() - async def call_tool(name: str, arguments: dict[str, Any] | None) -> list[types.ContentBlock]: + async def call_tool( + _ctx: ServerRequestContext[dict[str, Any]], params: types.CallToolRequestParams + ) -> types.CallToolResult: + name = params.name + arguments = params.arguments or {} return await agent_tool.call_tool(name, arguments) + mcp_server = Server("hosting-mcp-integration", on_call_tool=call_tool, on_list_tools=list_tools) + session_manager = StreamableHTTPSessionManager( app=mcp_server, event_store=None, diff --git a/python/packages/hosting-mcp/tests/hosting_mcp/test_workflow_tool.py b/python/packages/hosting-mcp/tests/hosting_mcp/test_workflow_tool.py index 20705f6677c..b5c5ffbce05 100644 --- a/python/packages/hosting-mcp/tests/hosting_mcp/test_workflow_tool.py +++ b/python/packages/hosting-mcp/tests/hosting_mcp/test_workflow_tool.py @@ -4,7 +4,9 @@ from dataclasses import dataclass from typing import Any +from unittest.mock import AsyncMock, patch +import pytest from agent_framework import ( Executor, WorkflowBuilder, @@ -15,7 +17,8 @@ handler, ) from agent_framework_hosting import WorkflowState -from mcp import types +from mcp import Client, MCPError, types +from mcp.server import Server, ServerRequestContext from pytest import raises from agent_framework_hosting_mcp import WorkflowMCPTool @@ -50,15 +53,15 @@ async def test_workflow_tool_derives_object_schema_and_runs_workflow() -> None: name="repeat_text", ) - definition = (await tool.list_tools())[0] + definition = (await tool.list_tools()).tools[0] result = await tool.call_tool("repeat_text", {"text": "go", "repeat": 2}) assert definition.description == "Repeat text a requested number of times." - assert definition.inputSchema["type"] == "object" - assert definition.inputSchema["properties"]["text"]["type"] == "string" - assert definition.inputSchema["properties"]["repeat"]["type"] == "integer" - assert set(definition.inputSchema["required"]) == {"text", "repeat"} - assert result == [types.TextContent(type="text", text="gogo")] + assert definition.input_schema["type"] == "object" + assert definition.input_schema["properties"]["text"]["type"] == "string" + assert definition.input_schema["properties"]["repeat"]["type"] == "integer" + assert set(definition.input_schema["required"]) == {"text", "repeat"} + assert result.content == [types.TextContent(type="text", text="gogo")] async def test_workflow_tool_wraps_primitive_input() -> None: @@ -69,16 +72,16 @@ async def uppercase(value: str, ctx: WorkflowContext[object, str]) -> None: workflow = WorkflowBuilder(start_executor=uppercase, name="uppercase", output_from=[uppercase]).build() tool: WorkflowMCPTool[Any] = WorkflowMCPTool(workflow, argument_name="text") - definition = (await tool.list_tools())[0] + definition = (await tool.list_tools()).tools[0] result = await tool.call_tool("uppercase", {"text": "hello"}) - assert definition.inputSchema == { + assert definition.input_schema == { "type": "object", "properties": {"text": {"type": "string"}}, "required": ["text"], "additionalProperties": False, } - assert result == [types.TextContent(type="text", text="HELLO")] + assert result.content == [types.TextContent(type="text", text="HELLO")] async def test_workflow_tool_serializes_structured_output_as_json_text() -> None: @@ -91,7 +94,7 @@ async def structured(value: str, ctx: WorkflowContext[object, dict[str, str]]) - result = await tool.call_tool("structured", {"input": "hello"}) - assert result == [types.TextContent(type="text", text='{"value":"hello"}')] + assert result.content == [types.TextContent(type="text", text='{"value":"hello"}')] def test_workflow_tool_rejects_unhandled_external_input_requests() -> None: @@ -129,3 +132,65 @@ async def handle_number(self, value: int, ctx: WorkflowContext[object, str]) -> with raises(ValueError, match="exactly one"): tool._tool_for_workflow(workflow) # pyright: ignore[reportPrivateUsage] + + +async def test_workflow_tool_rejects_unknown_tool_name() -> None: + tool: WorkflowMCPTool[Any] = WorkflowMCPTool(create_workflow(), name="repeat_text") + + with raises(MCPError, match="Unknown MCP tool") as exc_info: + await tool.call_tool("unknown", {"text": "go", "repeat": 2}) + + assert exc_info.value.code == types.INVALID_PARAMS + + +async def test_workflow_tool_rejects_invalid_input() -> None: + tool: WorkflowMCPTool[Any] = WorkflowMCPTool(create_workflow(), name="repeat_text") + + with raises(MCPError) as exc_info: + await tool.call_tool("repeat_text", {"text": "go"}) + + assert exc_info.value.code == types.INVALID_PARAMS + + +async def test_workflow_tool_propagates_execution_failure() -> None: + workflow = create_workflow() + tool: WorkflowMCPTool[Any] = WorkflowMCPTool(workflow, name="repeat_text") + + with ( + patch.object(workflow, "run", AsyncMock(side_effect=RuntimeError("workflow execution failed"))), + raises(RuntimeError, match="workflow execution failed"), + ): + await tool.call_tool("repeat_text", {"text": "go", "repeat": 2}) + + +@pytest.mark.parametrize( + ("mode", "expected_version"), + [ + ("auto", "2026-07-28"), + ("legacy", "2025-11-25"), + ], +) +async def test_workflow_tool_serves_both_protocol_eras(mode: str, expected_version: str) -> None: + workflow_tool: WorkflowMCPTool[Any] = WorkflowMCPTool(create_workflow(), name="repeat_text") + + async def list_tools( + _ctx: ServerRequestContext[dict[str, Any]], _params: types.PaginatedRequestParams | None + ) -> types.ListToolsResult: + return await workflow_tool.list_tools() + + async def call_tool( + _ctx: ServerRequestContext[dict[str, Any]], params: types.CallToolRequestParams + ) -> types.CallToolResult: + return await workflow_tool.call_tool(params.name, params.arguments or {}) + + server = Server("test-server", on_list_tools=list_tools, on_call_tool=call_tool) + + async with Client(server, mode=mode) as mcp_client: + tools = await mcp_client.list_tools() + result = await mcp_client.call_tool("repeat_text", {"text": "go", "repeat": 2}) + + assert mcp_client.protocol_version == expected_version + assert [tool.name for tool in tools.tools] == ["repeat_text"] + assert result.result_type == "complete" + assert not result.is_error + assert result.content == [types.TextContent(type="text", text="gogo")] diff --git a/python/packages/hosting-responses/pyproject.toml b/python/packages/hosting-responses/pyproject.toml index e5c6a55e7b8..15bdcfc7381 100644 --- a/python/packages/hosting-responses/pyproject.toml +++ b/python/packages/hosting-responses/pyproject.toml @@ -4,7 +4,7 @@ description = "OpenAI Responses-shaped helpers for agent-framework-hosting." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261008" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,8 +24,8 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.19.0,<2", - "agent-framework-hosting==1.0.0a261008", + "agent-framework-core>=1.22.0,<2", + "agent-framework-hosting==1.0.0a261015", "openai>=1.99.0,<4", ] diff --git a/python/packages/hosting-telegram/pyproject.toml b/python/packages/hosting-telegram/pyproject.toml index 5bb733e4b1f..81d6771c2a0 100644 --- a/python/packages/hosting-telegram/pyproject.toml +++ b/python/packages/hosting-telegram/pyproject.toml @@ -4,7 +4,7 @@ description = "Telegram Bot API-shaped helpers for agent-framework-hosting." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261002" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -25,7 +25,7 @@ classifiers = [ ] dependencies = [ "agent-framework-core>=1.13.0,<2", - "agent-framework-hosting==1.0.0a260730", + "agent-framework-hosting==1.0.0a261015", ] [tool.uv] diff --git a/python/packages/hosting/pyproject.toml b/python/packages/hosting/pyproject.toml index 16fa6fba20c..a334ede2b7d 100644 --- a/python/packages/hosting/pyproject.toml +++ b/python/packages/hosting/pyproject.toml @@ -4,7 +4,7 @@ description = "Execution-state helpers for app-owned Agent Framework hosting rou authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261008" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/hyperlight/pyproject.toml b/python/packages/hyperlight/pyproject.toml index 6d62ff271fd..d8cc3d278cc 100644 --- a/python/packages/hyperlight/pyproject.toml +++ b/python/packages/hyperlight/pyproject.toml @@ -4,7 +4,7 @@ description = "Hyperlight CodeAct integrations for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/lab/pyproject.toml b/python/packages/lab/pyproject.toml index 201a8522241..7ffb1bb3054 100644 --- a/python/packages/lab/pyproject.toml +++ b/python/packages/lab/pyproject.toml @@ -83,7 +83,7 @@ prerelease = "if-necessary" # litellm>=1.100.0 drops the `fastapi.dependencies.utils.get_flat_dependant` import removed in FastAPI 0.141.0. constraint-dependencies = ["litellm>=1.100.0", "fastapi-sso>=0.19.0"] # python-multipart>=0.0.31 overrides litellm[proxy]'s exact pin of <=0.0.27 for security. -override-dependencies = ["mcp[ws]>=1.27.0,<2", "uvicorn[standard]>=0.34.0", "python-multipart>=0.0.31"] +override-dependencies = ["mcp>=2.2.0,<3", "uvicorn[standard]>=0.34.0", "python-multipart>=0.0.31"] environments = [ "sys_platform == 'darwin'", "sys_platform == 'linux'", diff --git a/python/packages/lab/tau2/agent_framework_lab_tau2/_sliding_window.py b/python/packages/lab/tau2/agent_framework_lab_tau2/_sliding_window.py index 3a6157f3ef0..1218f047971 100644 --- a/python/packages/lab/tau2/agent_framework_lab_tau2/_sliding_window.py +++ b/python/packages/lab/tau2/agent_framework_lab_tau2/_sliding_window.py @@ -100,16 +100,16 @@ def _get_token_count(self, messages: list[Message]) -> int: # Simple text message total_tokens += self._estimate_any_object_token_count(msg.text) - if total_tokens > self.max_tokens / 2: + if total_tokens > self.max_tokens: + logger.opt(colors=True).warning( + f"Total tokens {total_tokens} is over max tokens {self.max_tokens}. Will truncate messages." + ) + elif total_tokens > self.max_tokens / 2: logger.opt(colors=True).warning( f"Total tokens {total_tokens} is " f"{total_tokens / self.max_tokens * 100:.0f}% " f"of max tokens {self.max_tokens}" ) - elif total_tokens > self.max_tokens: - logger.opt(colors=True).warning( - f"Total tokens {total_tokens} is over max tokens {self.max_tokens}. Will truncate messages." - ) return total_tokens diff --git a/python/packages/lab/tau2/tests/test_sliding_window.py b/python/packages/lab/tau2/tests/test_sliding_window.py index 8da46e86958..1a45485146f 100644 --- a/python/packages/lab/tau2/tests/test_sliding_window.py +++ b/python/packages/lab/tau2/tests/test_sliding_window.py @@ -211,3 +211,39 @@ async def test_real_world_scenario(): token_count = provider._get_token_count(truncated) assert token_count <= provider.max_tokens * 1.1 + + +def test_get_token_count_warns_over_max(): + """The over-max warning must win over the half-of-max warning (#9338).""" + import io + + from loguru import logger + + provider = SlidingWindowHistoryProvider(max_tokens=10) + messages = [ + Message( + role="user", + contents=[ + Content.from_text( + text=( + "hello world, this message is intentionally long " + "so it clearly exceeds the tiny ten token budget" + ) + ) + ], + ) + ] + + total = provider._get_token_count(messages) + assert total > provider.max_tokens + + buffer = io.StringIO() + handler_id = logger.add(buffer, format="{message}") + try: + provider._get_token_count(messages) + finally: + logger.remove(handler_id) + + logged = buffer.getvalue() + assert "over max tokens" in logged + assert "Will truncate messages" in logged diff --git a/python/packages/lab/uv.lock b/python/packages/lab/uv.lock index 37963c73055..f57ebf522be 100644 --- a/python/packages/lab/uv.lock +++ b/python/packages/lab/uv.lock @@ -1,5 +1,5 @@ version = 1 -revision = 5 +revision = 3 requires-python = ">=3.10" resolution-markers = [ "python_full_version >= '3.15' and sys_platform == 'darwin'", @@ -33,7 +33,7 @@ constraints = [ { name = "litellm", specifier = ">=1.100.0" }, ] overrides = [ - { name = "mcp", extras = ["ws"], specifier = ">=1.27.0,<2" }, + { name = "mcp", specifier = ">=2.2.0,<3" }, { name = "python-multipart", specifier = ">=0.0.31" }, { name = "uvicorn", extras = ["standard"], specifier = ">=0.34.0" }, ] @@ -49,7 +49,7 @@ wheels = [ [[package]] name = "agent-framework-core" -version = "1.20.0" +version = "1.21.0" source = { registry = "https://pypi.org/simple" } dependencies = [ { name = "msgspec" }, @@ -60,9 +60,9 @@ dependencies = [ { name = "regex" }, { name = "typing-extensions" }, ] -sdist = { url = "https://files.pythonhosted.org/packages/ea/e6/afcf9b4c8cdee8642deb1d836f560b49835ddb9af30d07ab6301bbc470fc/agent_framework_core-1.20.0.tar.gz", hash = "sha256:2cc3bb1fc30e8f8c4cdcd74c6996b58c7cd92246c018f904982ee41762538f0d", size = 741992, upload-time = "2026-10-02T12:41:05.438Z" } +sdist = { url = "https://files.pythonhosted.org/packages/28/4e/ccbbb762eb222881e0fb9b63d3c03ed298d26fea9725ef8beb3d40633523/agent_framework_core-1.21.0.tar.gz", hash = "sha256:3ddd6e46373875cceac857b671480c528b57d387b2d2177f52d32568d842017f", size = 750586, upload-time = "2026-10-08T10:42:40.918Z" } wheels = [ - { url = 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b/python/packages/mistral/pyproject.toml index 279d770ffb8..055d2af00c3 100644 --- a/python/packages/mistral/pyproject.toml +++ b/python/packages/mistral/pyproject.toml @@ -4,7 +4,7 @@ description = "Mistral AI integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b260918" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://learn.microsoft.com/en-us/agent-framework/" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -25,7 +25,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.19.0,<2", + "agent-framework-core>=1.22.0,<2", "mistralai>=2.9.2,<3", ] diff --git a/python/packages/mongodb/pyproject.toml b/python/packages/mongodb/pyproject.toml index 615c63061b0..5ac540cec7b 100644 --- a/python/packages/mongodb/pyproject.toml +++ b/python/packages/mongodb/pyproject.toml @@ -4,7 +4,7 @@ description = "MongoDB vector stores for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com" }] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261002" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/monty/agent_framework_monty/_execute_code_tool.py b/python/packages/monty/agent_framework_monty/_execute_code_tool.py index 6a143f33bb0..551c5964441 100644 --- a/python/packages/monty/agent_framework_monty/_execute_code_tool.py +++ b/python/packages/monty/agent_framework_monty/_execute_code_tool.py @@ -15,12 +15,15 @@ import json import logging import mimetypes +import os +import stat from collections.abc import Callable, Iterator, Sequence from functools import partial from pathlib import Path, PurePosixPath from typing import Any, cast from agent_framework import Content, FunctionTool +from agent_framework._filesystem import _is_link_or_reparse_point # pyright: ignore[reportPrivateUsage] from agent_framework._tools import ( ApprovalMode, _normalize_tool_description_format, # pyright: ignore[reportPrivateUsage] @@ -498,42 +501,95 @@ def _build_execution_contents(*, result: dict[str, Any]) -> list[Content]: def _iter_real_files(root: Path) -> Iterator[Path]: - """Walk ``root`` recursively, yielding only real (non-symlink) files. + """Walk ``root`` recursively, yielding only real regular files. ``Path.rglob`` follows directory symlinks by default, which combined with ``Path.is_file()`` / ``Path.read_bytes()`` (both follow symlinks) would let an attacker who controls the workspace pre-place a symlink to a host file - or directory and have our post-execution capture surface it. Skipping every - symlink at both the directory and file level closes that escape. + or directory and have our post-execution capture surface it. Skip symlinks, + Windows junctions, and other reparse points at every directory level. """ stack: list[Path] = [root] while stack: current = stack.pop() try: + if _is_link_or_reparse_point(current): + continue entries = list(current.iterdir()) except OSError: continue for entry in entries: try: - if entry.is_symlink(): + if _is_link_or_reparse_point(entry): continue - if entry.is_dir(): + entry_stat = entry.lstat() + if stat.S_ISDIR(entry_stat.st_mode): stack.append(entry) - elif entry.is_file(): + elif stat.S_ISREG(entry_stat.st_mode): yield entry except OSError: continue +def _safe_capture_file_stat(*, root: Path, entry: Path) -> os.stat_result | None: + """Return the verified stat for a real regular file beneath ``root``.""" + try: + relative = entry.relative_to(root) + except ValueError: + return None + + current = root + try: + if _is_link_or_reparse_point(current): + return None + for part in relative.parts: + current /= part + if _is_link_or_reparse_point(current): + return None + entry_stat = current.lstat() + except OSError: + return None + return entry_stat if stat.S_ISREG(entry_stat.st_mode) else None + + +def _read_validated_file(*, root: Path, entry: Path, expected: os.stat_result) -> bytes | None: + """Read ``entry`` through one descriptor that is checked against the validated file. + + ``Path.read_bytes()`` reopens the path, so a component swapped for a link or junction after + validation would be followed. Opening first, comparing the descriptor with the validated ``lstat`` + identity, and revalidating the path afterwards rejects such a swap. Windows has no no-follow open, + so the check is not atomic there, but an undetected swap would have to be applied, reverted, and + applied again around the checks. Returns ``None`` when the file changed or cannot be read safely. + """ + flags = os.O_RDONLY | getattr(os, "O_BINARY", 0) | getattr(os, "O_NOFOLLOW", 0) + try: + fd = os.open(entry, flags) + except OSError: + return None + try: + opened = os.fstat(fd) + identity = (opened.st_dev, opened.st_ino) + if not stat.S_ISREG(opened.st_mode) or identity != (expected.st_dev, expected.st_ino): + return None + rechecked = _safe_capture_file_stat(root=root, entry=entry) + if rechecked is None or (rechecked.st_dev, rechecked.st_ino) != identity: + return None + with os.fdopen(fd, "rb", closefd=False) as handle: + return handle.read() + except OSError: + return None + finally: + os.close(fd) + + def _snapshot_writable_mounts(mounts: Sequence[FileMount]) -> dict[str, dict[str, tuple[int, int]]]: - """Capture (size, mtime_ns) for every real (non-symlink) host file under read-write mounts. + """Capture (size, mtime_ns) for every real host file under read-write mounts. Returns ``{mount_path: {relative_posix_path: (size, mtime_ns)}}``. Used by :func:`_capture_written_files` to detect new or modified files after the run. Read-only and overlay mounts are skipped because their writes do not - propagate to the host. Symlinks (file or directory) are deliberately skipped - so an attacker cannot escape the mount by pre-placing a symlink to a host - path outside the workspace. + propagate to the host. Links and reparse points are deliberately skipped so + an attacker cannot escape the mount through a host path outside the workspace. """ snapshot: dict[str, dict[str, tuple[int, int]]] = {} for mount in mounts: @@ -543,11 +599,11 @@ def _snapshot_writable_mounts(mounts: Sequence[FileMount]) -> dict[str, dict[str per_mount: dict[str, tuple[int, int]] = {} for entry in _iter_real_files(host_root): try: - stat = entry.lstat() # lstat: never follow symlinks (defensive) + entry_stat = entry.lstat() # lstat: never follow symlinks (defensive) except OSError: continue relative = entry.relative_to(host_root).as_posix() - per_mount[relative] = (int(stat.st_size), int(stat.st_mtime_ns)) + per_mount[relative] = (int(entry_stat.st_size), int(entry_stat.st_mtime_ns)) snapshot[mount.mount_path] = per_mount return snapshot @@ -559,11 +615,12 @@ def _capture_written_files( """Return :class:`Content` items for files the sandbox wrote during the run. Mirrors Hyperlight's ``/output`` capture flow: any new or modified real - (non-symlink) file under a read-write mount is read back as binary and + regular file under a read-write mount is read back as binary and surfaced as ``Content.from_data`` with a ``path`` annotation in - ``additional_properties``. Symlinks are skipped at both directory and file - level so a malicious workspace cannot trick us into capturing host files - outside the configured mount root. + ``additional_properties``. Links and reparse points are skipped at every + directory level, and each file is read through a descriptor verified + against the validated path, so a malicious workspace cannot trick us into + capturing host files outside the configured mount root. """ captured: list[Content] = [] for mount in mounts: @@ -572,28 +629,24 @@ def _capture_written_files( host_root = Path(mount.host_path) before = pre_state.get(mount.mount_path, {}) for entry in sorted(_iter_real_files(host_root)): - try: - stat = entry.lstat() - except OSError: + entry_stat = _safe_capture_file_stat(root=host_root, entry=entry) + if entry_stat is None: continue relative = entry.relative_to(host_root).as_posix() - current = (int(stat.st_size), int(stat.st_mtime_ns)) + current = (int(entry_stat.st_size), int(entry_stat.st_mtime_ns)) if before.get(relative) == current: continue # Unchanged. sandbox_path = f"{mount.mount_path.rstrip('/')}/{relative}" - if stat.st_size > MAX_CAPTURED_FILE_BYTES: + if entry_stat.st_size > MAX_CAPTURED_FILE_BYTES: captured.append( Content.from_text( - f"[file {sandbox_path} omitted: {stat.st_size} bytes " + f"[file {sandbox_path} omitted: {entry_stat.st_size} bytes " f"exceeds MAX_CAPTURED_FILE_BYTES={MAX_CAPTURED_FILE_BYTES}]" ) ) continue - try: - # _iter_real_files already excluded symlinks at every level of - # the walk; reading the file here is safe. - data = entry.read_bytes() - except OSError: + data = _read_validated_file(root=host_root, entry=entry, expected=entry_stat) + if data is None: continue media_type = mimetypes.guess_type(entry.name)[0] or "application/octet-stream" captured.append( diff --git a/python/packages/monty/pyproject.toml b/python/packages/monty/pyproject.toml index 408e39dbf1e..013db6979dc 100644 --- a/python/packages/monty/pyproject.toml +++ b/python/packages/monty/pyproject.toml @@ -4,7 +4,7 @@ description = "Monty CodeAct integrations for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/monty/tests/monty/test_monty_codeact.py b/python/packages/monty/tests/monty/test_monty_codeact.py index 33de9f603b6..d5f5db71cc2 100644 --- a/python/packages/monty/tests/monty/test_monty_codeact.py +++ b/python/packages/monty/tests/monty/test_monty_codeact.py @@ -11,10 +11,13 @@ import asyncio import json +import os import re +import stat +import subprocess import sys import types -from collections.abc import Iterable, Iterator, Mapping +from collections.abc import Callable, Iterable, Iterator, Mapping from dataclasses import dataclass, field from pathlib import Path from typing import Annotated, Any, Literal @@ -984,6 +987,8 @@ def test_capture_written_files_returns_new_files_and_omits_large_ones( existing = writable / "existing.txt" existing.write_text("before", encoding="utf-8") + unchanged = writable / "unchanged.txt" + unchanged.write_text("same", encoding="utf-8") (nested / "report.txt").write_text("old", encoding="utf-8") (readonly / "ignored.txt").write_text("unchanged", encoding="utf-8") @@ -1005,6 +1010,7 @@ def test_capture_written_files_returns_new_files_and_omits_large_ones( assert set(pre_state) == {"/work"} assert "existing.txt" in pre_state["/work"] + assert "unchanged.txt" in pre_state["/work"] assert "ignored.txt" not in pre_state["/work"] assert {item.additional_properties["path"] for item in data_items} == { "/work/artifact.bin", @@ -1018,6 +1024,305 @@ def test_capture_written_files_returns_new_files_and_omits_large_ones( if item.additional_properties["path"] == "/work/existing.txt" ) assert all(not item.additional_properties["path"].startswith("/readonly/") for item in data_items) + assert all(item.additional_properties["path"] != "/work/unchanged.txt" for item in data_items) + + +def _create_junction_or_skip(*, link: Path, target: Path) -> None: + if sys.platform != "win32": + pytest.skip("Windows directory junctions are only available on Windows") + + result = subprocess.run( + [os.environ.get("COMSPEC", "cmd"), "/c", "mklink", "/J", str(link), str(target)], + capture_output=True, + text=True, + check=False, + ) + if result.returncode != 0: + pytest.skip(f"Could not create Windows directory junction: {result.stderr or result.stdout}") + + is_junction = getattr(link, "is_junction", None) + reparse_attribute = getattr(stat, "FILE_ATTRIBUTE_REPARSE_POINT", 0) + is_reparse_point = bool(reparse_attribute and getattr(link.lstat(), "st_file_attributes", 0) & reparse_attribute) + if not (callable(is_junction) and is_junction()) and not is_reparse_point: + link.rmdir() + pytest.skip("Created junction was not reported as a reparse point") + + +def _model_junction_or_skip(*, link: Path, target: Path, monkeypatch: pytest.MonkeyPatch) -> None: + """Make ``link`` look like an NTFS junction to pathlib while still traversing to ``target``. + + The stat-family answers for ``link`` become those of a junction (not a symlink, a directory with the + reparse-point attribute) and every other path is untouched, so non-Windows runs exercise the same walker + and capture logic. The real-junction variants cover NTFS itself. + """ + try: + link.symlink_to(target, target_is_directory=True) + except (OSError, NotImplementedError) as exc: + pytest.skip(f"Symbolic links are not supported in this environment: {exc!r}") + + original_is_symlink = Path.is_symlink + original_lstat = Path.lstat + + def is_symlink(self: Path) -> bool: + return False if self == link else original_is_symlink(self) + + def lstat(self: Path) -> Any: + real = original_lstat(self) + if self != link: + return real + return types.SimpleNamespace( + st_mode=stat.S_IFDIR | 0o755, + st_size=0, + st_mtime_ns=real.st_mtime_ns, + st_dev=real.st_dev, + st_ino=real.st_ino, + st_file_attributes=getattr(stat, "FILE_ATTRIBUTE_REPARSE_POINT", 0), + ) + + monkeypatch.setattr(Path, "is_symlink", is_symlink) + monkeypatch.setattr(Path, "lstat", lstat) + + +@pytest.mark.parametrize("junction_kind", ["windows", "modeled"]) +@pytest.mark.parametrize("create_before_snapshot", [True, False]) +def test_capture_written_files_skips_junction_to_outside_directory( + tmp_path: Path, + monkeypatch: pytest.MonkeyPatch, + junction_kind: str, + create_before_snapshot: bool, +) -> None: + from agent_framework_monty import FileMount + + writable = tmp_path / "writable" + writable.mkdir() + outside = tmp_path / "outside" + outside.mkdir() + (outside / "existing.txt").write_text("before", encoding="utf-8") + junction = writable / "linked" + mount = FileMount(host_path=writable, mount_path="/input", mode="read-write") + + def create_junction() -> None: + if junction_kind == "windows": + _create_junction_or_skip(link=junction, target=outside) + else: + _model_junction_or_skip(link=junction, target=outside, monkeypatch=monkeypatch) + + if create_before_snapshot: + create_junction() + pre_state = execute_code_module._snapshot_writable_mounts([mount]) + if not create_before_snapshot: + create_junction() + + try: + assert not any(path.startswith("linked/") for path in pre_state["/input"]) + (outside / "existing.txt").write_text("modified", encoding="utf-8") + (outside / "created.txt").write_text("created", encoding="utf-8") + (writable / "report.txt").write_text("legitimate", encoding="utf-8") + + captured = execute_code_module._capture_written_files([mount], pre_state) + + assert {item.additional_properties["path"] for item in captured if item.type == "data"} == {"/input/report.txt"} + finally: + if junction_kind == "windows": + junction.rmdir() + + +def test_iter_real_files_fails_closed_when_reparse_probe_raises( + tmp_path: Path, + monkeypatch: pytest.MonkeyPatch, +) -> None: + readable = tmp_path / "readable.txt" + readable.write_text("safe", encoding="utf-8") + blocked = tmp_path / "blocked" + blocked.mkdir() + (blocked / "secret.txt").write_text("secret", encoding="utf-8") + original_probe = execute_code_module._is_link_or_reparse_point + + def fail_for_blocked(path: Path) -> bool: + if path == blocked: + raise PermissionError("access denied") + return original_probe(path) + + monkeypatch.setattr(execute_code_module, "_is_link_or_reparse_point", fail_for_blocked) + + assert set(execute_code_module._iter_real_files(tmp_path)) == {readable} + assert execute_code_module._safe_capture_file_stat(root=tmp_path, entry=blocked / "secret.txt") is None + + +def _skip_without_symlinks(tmp_path: Path) -> None: + probe = tmp_path / "symlink-probe" + try: + probe.symlink_to(tmp_path / "missing-target") + except (OSError, NotImplementedError) as exc: + pytest.skip(f"Symbolic links are not supported in this environment: {exc!r}") + probe.unlink() + + +def _swap_after_first_validation(monkeypatch: pytest.MonkeyPatch, swap: Callable[[], None]) -> None: + """Run ``swap`` once, right after the first path validation and before the file is opened.""" + original = execute_code_module._safe_capture_file_stat + swapped = False + + def validate_then_swap(**kwargs: Any) -> Any: + nonlocal swapped + result = original(**kwargs) + if not swapped: + swapped = True + swap() + return result + + monkeypatch.setattr(execute_code_module, "_safe_capture_file_stat", validate_then_swap) + + +def test_safe_capture_file_stat_rejects_links_outside_paths_and_non_files(tmp_path: Path) -> None: + _skip_without_symlinks(tmp_path) + root = tmp_path / "root" + root.mkdir() + (root / "file.txt").write_text("payload", encoding="utf-8") + outside = tmp_path / "outside" + outside.mkdir() + (outside / "secret.txt").write_text("HOST_SECRET", encoding="utf-8") + (root / "linked").symlink_to(outside, target_is_directory=True) + linked_root = tmp_path / "linked-root" + linked_root.symlink_to(root, target_is_directory=True) + safe_stat = execute_code_module._safe_capture_file_stat + + assert safe_stat(root=root, entry=root / "file.txt") is not None + assert safe_stat(root=root, entry=root / "linked" / "secret.txt") is None + assert safe_stat(root=root, entry=outside / "secret.txt") is None + assert safe_stat(root=root, entry=root) is None + assert safe_stat(root=linked_root, entry=linked_root / "file.txt") is None + assert list(execute_code_module._iter_real_files(linked_root)) == [] + + +@pytest.mark.parametrize("recheck_result", ["unsafe", "different-file"]) +def test_capture_written_files_rechecks_path_after_opening( + tmp_path: Path, + monkeypatch: pytest.MonkeyPatch, + recheck_result: str, +) -> None: + from agent_framework_monty import FileMount + + writable = tmp_path / "writable" + writable.mkdir() + artifact = writable / "artifact.txt" + artifact.write_text("payload", encoding="utf-8") + other = tmp_path / "other.txt" + other.write_text("other", encoding="utf-8") + mount = FileMount(host_path=writable, mount_path="/input", mode="read-write") + safety_checks = iter([artifact.lstat(), None if recheck_result == "unsafe" else other.lstat()]) + + monkeypatch.setattr( + execute_code_module, + "_safe_capture_file_stat", + lambda **_: next(safety_checks), + ) + + captured = execute_code_module._capture_written_files([mount], {"/input": {}}) + + assert captured == [] + + +@pytest.mark.parametrize("replacement_kind", ["file", "directory"]) +def test_capture_written_files_skips_file_replaced_after_validation( + tmp_path: Path, + monkeypatch: pytest.MonkeyPatch, + replacement_kind: str, +) -> None: + from agent_framework_monty import FileMount + + writable = tmp_path / "writable" + writable.mkdir() + artifact = writable / "artifact.txt" + artifact.write_text("payload", encoding="utf-8") + # Created before the original is removed so the two files cannot share an inode number. + replacement = tmp_path / "replacement.txt" + replacement.write_text("REPLACED", encoding="utf-8") + mount = FileMount(host_path=writable, mount_path="/input", mode="read-write") + + def swap() -> None: + if replacement_kind == "file": + os.replace(replacement, artifact) + else: + artifact.unlink() + artifact.mkdir() + + _swap_after_first_validation(monkeypatch, swap) + + captured = execute_code_module._capture_written_files([mount], {"/input": {}}) + + assert captured == [] + + +def test_capture_written_files_skips_file_removed_after_validation( + tmp_path: Path, + monkeypatch: pytest.MonkeyPatch, +) -> None: + from agent_framework_monty import FileMount + + writable = tmp_path / "writable" + writable.mkdir() + artifact = writable / "artifact.txt" + artifact.write_text("payload", encoding="utf-8") + mount = FileMount(host_path=writable, mount_path="/input", mode="read-write") + _swap_after_first_validation(monkeypatch, artifact.unlink) + + captured = execute_code_module._capture_written_files([mount], {"/input": {}}) + + assert captured == [] + + +def test_capture_written_files_does_not_follow_leaf_link_swapped_in_after_validation( + tmp_path: Path, + monkeypatch: pytest.MonkeyPatch, +) -> None: + from agent_framework_monty import FileMount + + _skip_without_symlinks(tmp_path) + writable = tmp_path / "writable" + writable.mkdir() + artifact = writable / "artifact.txt" + artifact.write_text("payload", encoding="utf-8") + secret = tmp_path / "secret.txt" + secret.write_text("HOST_SECRET", encoding="utf-8") + mount = FileMount(host_path=writable, mount_path="/input", mode="read-write") + + def swap() -> None: + artifact.unlink() + artifact.symlink_to(secret) + + _swap_after_first_validation(monkeypatch, swap) + + captured = execute_code_module._capture_written_files([mount], {"/input": {}}) + + assert not any(item.type == "data" for item in captured) + + +def test_capture_written_files_does_not_follow_parent_link_swapped_in_after_validation( + tmp_path: Path, + monkeypatch: pytest.MonkeyPatch, +) -> None: + from agent_framework_monty import FileMount + + _skip_without_symlinks(tmp_path) + writable = tmp_path / "writable" + parent = writable / "sub" + parent.mkdir(parents=True) + (parent / "report.txt").write_text("payload", encoding="utf-8") + outside = tmp_path / "outside" + outside.mkdir() + (outside / "report.txt").write_text("HOST_SECRET", encoding="utf-8") + mount = FileMount(host_path=writable, mount_path="/input", mode="read-write") + + def swap() -> None: + parent.rename(writable / "original-sub") + parent.symlink_to(outside, target_is_directory=True) + + _swap_after_first_validation(monkeypatch, swap) + + captured = execute_code_module._capture_written_files([mount], {"/input": {}}) + + assert not any(item.type == "data" for item in captured) # --------------------------------------------------------------------------- diff --git a/python/packages/ollama/agent_framework_ollama/_chat_client.py b/python/packages/ollama/agent_framework_ollama/_chat_client.py index a0bcc046296..970840ed6e4 100644 --- a/python/packages/ollama/agent_framework_ollama/_chat_client.py +++ b/python/packages/ollama/agent_framework_ollama/_chat_client.py @@ -2,6 +2,8 @@ from __future__ import annotations +import base64 +import binascii import json import logging import sys @@ -45,6 +47,7 @@ # Rename imported types to avoid naming conflicts with Agent Framework types from ollama._types import ChatResponse as OllamaChatResponse +from ollama._types import Image as OllamaImage from ollama._types import Message as OllamaMessage from pydantic import BaseModel @@ -533,10 +536,32 @@ def _format_user_message(self, message: Message) -> list[OllamaMessage]: raise ChatClientInvalidRequestException( "Only image data content is supported for user messages in Ollama." ) - # Ollama expects base64 strings without prefix - user_message["images"] = [c.uri.split(",")[1] for c in data_contents if c.uri] + user_message["images"] = [OllamaImage(value=self._decode_image_data_uri(c)) for c in data_contents] return [user_message] + @staticmethod + def _decode_image_data_uri(content: Content) -> bytes: + uri = content.uri + if not uri or not uri.startswith("data:") or "," not in uri: + raise ChatClientInvalidRequestException("Ollama image content must be a base64-encoded data:image URI.") + + metadata, payload = uri.split(",", 1) + metadata_parts = metadata[5:].split(";") + parameters = metadata_parts[1:] + if ( + not metadata_parts[0].lower().startswith("image/") + or not parameters + or parameters[-1] != "base64" + or any(not parameter or "=" not in parameter for parameter in parameters[:-1]) + or not payload + ): + raise ChatClientInvalidRequestException("Ollama image content must be a base64-encoded data:image URI.") + + try: + return base64.b64decode(payload, validate=True) + except (binascii.Error, ValueError) as exc: + raise ChatClientInvalidRequestException("Ollama image content contains invalid base64 data.") from exc + def _format_assistant_message(self, message: Message) -> list[OllamaMessage]: text_content = message.text # Ollama shouldn't have encrypted reasoning, so we just process text. diff --git a/python/packages/ollama/pyproject.toml b/python/packages/ollama/pyproject.toml index 3ffac10831b..38ff64a3732 100644 --- a/python/packages/ollama/pyproject.toml +++ b/python/packages/ollama/pyproject.toml @@ -4,7 +4,7 @@ description = "Ollama integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://learn.microsoft.com/en-us/agent-framework/" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -25,7 +25,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.13.0,<2", + "agent-framework-core>=1.22.0,<2", "ollama>=0.5.3,<0.5.4", ] diff --git a/python/packages/ollama/tests/test_ollama_chat_client.py b/python/packages/ollama/tests/test_ollama_chat_client.py index ab185cb3ce1..b404bf2701c 100644 --- a/python/packages/ollama/tests/test_ollama_chat_client.py +++ b/python/packages/ollama/tests/test_ollama_chat_client.py @@ -1,8 +1,10 @@ # Copyright (c) Microsoft. All rights reserved. +import base64 import os import uuid from collections.abc import AsyncIterable +from pathlib import Path from typing import Any, cast from unittest.mock import AsyncMock, MagicMock, patch @@ -25,6 +27,7 @@ ) from ollama import AsyncClient from ollama._types import ChatResponse as OllamaChatResponse +from ollama._types import Image as OllamaImage from ollama._types import Message as OllamaMessage from openai import AsyncStream from pydantic import BaseModel @@ -634,18 +637,98 @@ async def test_cmc_with_data_content_type( chat_history: list[Message], mock_chat_completion_response: OllamaChatResponse, ) -> None: + image_bytes = b"\x89PNG\r\n\x1a\n" mock_chat.return_value = mock_chat_completion_response chat_history.append( Message( - contents=[Content.from_uri(uri="data:image/png;base64,xyz", media_type="image/png")], + contents=[ + Content.from_uri( + uri=f"data:image/png;base64,{base64.b64encode(image_bytes).decode()}", + media_type="image/png", + ) + ], role="user", ) ) ollama_client = OllamaChatClient() - result = await ollama_client.get_response(messages=chat_history) + with ( + patch.object(Path, "exists", side_effect=AssertionError("Path.exists must not be called")) as path_exists, + patch.object( + Path, "read_bytes", side_effect=AssertionError("Path.read_bytes must not be called") + ) as read_bytes, + ): + result = await ollama_client.get_response(messages=chat_history) + sent_image = mock_chat.call_args.kwargs["messages"][0].images[0] + assert isinstance(sent_image, OllamaImage) + assert sent_image.value == image_bytes + assert sent_image.model_dump() == base64.b64encode(image_bytes).decode() + assert result.text == "test" + path_exists.assert_not_called() + read_bytes.assert_not_called() + + +@pytest.mark.parametrize( + "uri", + [ + "data:image/png,/tmp/image.png", + "data:image/png;base64,/tmp/image.png", + r"data:image/png;base64,C:\temp\image.png", + r"data:image/png;base64,\\server\share\image.png", + "data:image/png;base64,../image.png", + "data:image/png;base64,", + "data:text/plain;base64,aGVsbG8=", + ], +) +def test_cmc_rejects_invalid_image_data_uri( + uri: str, + ollama_unit_test_env: dict[str, str], +) -> None: + message = Message( + contents=[Content.from_uri(uri=uri, media_type="image/png")], + role="user", + ) + ollama_client = OllamaChatClient() + + with pytest.raises(ChatClientInvalidRequestException): + ollama_client._format_user_message(message) + + +@patch.object(AsyncClient, "chat", new_callable=AsyncMock) +async def test_cmc_treats_base64_shaped_path_as_inline_bytes( + mock_chat: AsyncMock, + ollama_unit_test_env: dict[str, str], + chat_history: list[Message], + mock_chat_completion_response: OllamaChatResponse, +) -> None: + payload = "////tmpx" + expected_bytes = base64.b64decode(payload, validate=True) + mock_chat.return_value = mock_chat_completion_response + chat_history.append( + Message( + contents=[Content.from_uri(uri=f"data:image/png;base64,{payload}", media_type="image/png")], + role="user", + ) + ) + + ollama_client = OllamaChatClient() + + with ( + patch.object(Path, "exists", side_effect=AssertionError("Path.exists must not be called")) as path_exists, + patch.object( + Path, "read_bytes", side_effect=AssertionError("Path.read_bytes must not be called") + ) as read_bytes, + ): + await ollama_client.get_response(messages=chat_history) + sent_image = mock_chat.call_args.kwargs["messages"][0].images[0] + assert isinstance(sent_image, OllamaImage) + assert sent_image.value == expected_bytes + assert sent_image.model_dump() == payload + + path_exists.assert_not_called() + read_bytes.assert_not_called() @patch.object(AsyncClient, "chat", new_callable=AsyncMock) diff --git a/python/packages/openai/pyproject.toml b/python/packages/openai/pyproject.toml index c4405f2ffc1..09625125544 100644 --- a/python/packages/openai/pyproject.toml +++ b/python/packages/openai/pyproject.toml @@ -4,7 +4,7 @@ description = "OpenAI integrations for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.16.0" +version = "1.17.0" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,7 +24,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core>=1.20.0,<2", + "agent-framework-core>=1.22.0,<2", "openai>=2.25.0,<4", ] diff --git a/python/packages/oracle/pyproject.toml b/python/packages/oracle/pyproject.toml index 573b797837f..f6c39d5a2c3 100644 --- a/python/packages/oracle/pyproject.toml +++ b/python/packages/oracle/pyproject.toml @@ -4,7 +4,7 @@ description = "Oracle AI Database native vector stores for Microsoft Agent Frame authors = [{ name = "Microsoft", email = "af-support@microsoft.com" }] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261008" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/orchestrations/agent_framework_orchestrations/_orchestration_request_info.py b/python/packages/orchestrations/agent_framework_orchestrations/_orchestration_request_info.py index 6c9bcdcb112..eca0a72e12b 100644 --- a/python/packages/orchestrations/agent_framework_orchestrations/_orchestration_request_info.py +++ b/python/packages/orchestrations/agent_framework_orchestrations/_orchestration_request_info.py @@ -199,6 +199,7 @@ def __init__( context_mode: Literal["full", "last_agent", "custom"] | None = None, *, allow_direct_output: bool = False, + ensure_trailing_user_turn: bool = False, ) -> None: """Initialize the AgentApprovalExecutor. @@ -210,8 +211,13 @@ def __init__( downstream participant). Set this when this executor is the workflow's terminator — so the user-approved final response surfaces as a workflow ``output`` event. + ensure_trailing_user_turn: If True, appends a synthetic user continuation + message when the cache ends on an assistant message. Some chat-completions + providers return empty text when the prompt ends on ``assistant``. + Defaults to False. """ self._context_mode: Literal["full", "last_agent", "custom"] | None = context_mode + self._ensure_trailing_user_turn = ensure_trailing_user_turn self._description = agent.description super().__init__( @@ -235,6 +241,7 @@ def _build_workflow(self, agent: SupportsAgentRun, *, terminal: bool) -> Workflo agent_executor = AgentExecutor( agent, context_mode=self._context_mode, + ensure_trailing_user_turn=self._ensure_trailing_user_turn, ) request_info_cls = _TerminalAgentRequestInfoExecutor if terminal else AgentRequestInfoExecutor request_info_executor = request_info_cls(id="agent_request_info_executor") diff --git a/python/packages/orchestrations/agent_framework_orchestrations/_sequential.py b/python/packages/orchestrations/agent_framework_orchestrations/_sequential.py index a92353998fb..d7147889150 100644 --- a/python/packages/orchestrations/agent_framework_orchestrations/_sequential.py +++ b/python/packages/orchestrations/agent_framework_orchestrations/_sequential.py @@ -105,6 +105,7 @@ def __init__( chain_only_agent_responses: bool = False, output_from: Sequence[_ParticipantOutputSpecifier] | Literal["all"] | None = cast(Any, UNSET), intermediate_output_from: _ParticipantIntermediateOutputSelection = None, + ensure_trailing_user_turn: bool = False, ) -> None: """Initialize the SequentialBuilder. @@ -120,6 +121,11 @@ def __init__( intermediate_output_from: Optional participant names or instances whose ``yield_output`` calls surface as workflow ``intermediate`` events. Pass ``"all_other"`` to select every participant not selected by ``output_from``. Unlisted participant outputs are hidden. + ensure_trailing_user_turn: If True, whenever a participant would be run with a + conversation ending on an assistant message (e.g. chaining into the next agent), + a synthetic user continuation message is appended first. Some chat-completions + providers return empty text when the prompt ends on ``assistant``. Defaults to + False to preserve existing behavior. """ self._name = name or DEFAULT_WORKFLOW_NAME self._participants: list[SupportsAgentRun | Executor] = [] @@ -129,6 +135,7 @@ def __init__( self._request_info_filter: set[str] | None = None self._output_from = _coalesce_output_from(output_from=output_from) self._intermediate_output_from = _coerce_intermediate_output_from(intermediate_output_from) + self._ensure_trailing_user_turn: bool = ensure_trailing_user_turn self._set_participants(participants) @@ -223,10 +230,17 @@ def _resolve_participants(self) -> list[Executor]: p, context_mode=context_mode, allow_direct_output=(idx == last_idx), + ensure_trailing_user_turn=self._ensure_trailing_user_turn, ) ) else: - executors.append(AgentExecutor(p, context_mode=context_mode)) + executors.append( + AgentExecutor( + p, + context_mode=context_mode, + ensure_trailing_user_turn=self._ensure_trailing_user_turn, + ) + ) else: raise TypeError(f"Participants must be SupportsAgentRun or Executor instances. Got {type(p).__name__}.") diff --git a/python/packages/orchestrations/pyproject.toml b/python/packages/orchestrations/pyproject.toml index e7086649ccf..31a9cfa5dec 100644 --- a/python/packages/orchestrations/pyproject.toml +++ b/python/packages/orchestrations/pyproject.toml @@ -4,7 +4,7 @@ description = "Orchestration patterns for Microsoft Agent Framework. Includes Se authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.3.1" +version = "1.3.2" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/orchestrations/tests/test_orchestration_request_info.py b/python/packages/orchestrations/tests/test_orchestration_request_info.py index bbbaaaabd99..e3f8c969338 100644 --- a/python/packages/orchestrations/tests/test_orchestration_request_info.py +++ b/python/packages/orchestrations/tests/test_orchestration_request_info.py @@ -257,6 +257,38 @@ def test_propagate_request_enabled(self): assert executor._propagate_request is True # type: ignore + def test_ensure_trailing_user_turn_defaults_to_false(self): + """ensure_trailing_user_turn should default to False, preserving existing behavior.""" + agent = _TestAgent(id="test_id", name="test_agent", description="test description") + executor = AgentApprovalExecutor(cast(SupportsAgentRun, agent)) + assert executor._ensure_trailing_user_turn is False # type: ignore + + def test_ensure_trailing_user_turn_stored_on_executor(self): + """ensure_trailing_user_turn=True should be stored on the AgentApprovalExecutor instance.""" + agent = _TestAgent(id="test_id", name="test_name", description="test description") + executor = AgentApprovalExecutor(cast(SupportsAgentRun, agent), ensure_trailing_user_turn=True) + assert executor._ensure_trailing_user_turn is True # type: ignore + + def test_ensure_trailing_user_turn_propagated_to_inner_agent_executor(self): + """ensure_trailing_user_turn must be threaded through to the inner AgentExecutor + built by _build_workflow, since that inner executor is what actually runs the agent. + + without this propagation, the flag would be accepted + by AgentApprovalExecutor but silently dropped, so request-info-wrapped agents + would never get the synthetic trailing user turn. + """ + agent = _TestAgent(id="test_id", name="test_agent", description="Test description") + executor = AgentApprovalExecutor(cast(SupportsAgentRun, agent), ensure_trailing_user_turn=True) + inner_agent_executor = executor.workflow.get_start_executor() + assert inner_agent_executor._ensure_trailing_user_turn is True # type: ignore + + def test_ensure_trailing_user_turn_false_propagated_to_inner_agent_executor(self): + """When left at the default, the inner AgentExecutor must also default to False.""" + agent = _TestAgent(id="test_id", name="test_agent", description="Test description") + executor = AgentApprovalExecutor(cast(SupportsAgentRun, agent)) + inner_agent_executor = executor.workflow.get_start_executor() + assert inner_agent_executor._ensure_trailing_user_turn is False # type: ignore + def _build_with_request_info(builder_name: str, agents: list[str]) -> Any: from agent_framework.orchestrations import ConcurrentBuilder, GroupChatBuilder, SequentialBuilder diff --git a/python/packages/orchestrations/tests/test_sequential.py b/python/packages/orchestrations/tests/test_sequential.py index 4e4006456ed..2fe718e76a1 100644 --- a/python/packages/orchestrations/tests/test_sequential.py +++ b/python/packages/orchestrations/tests/test_sequential.py @@ -551,6 +551,103 @@ async def test_chain_only_agent_responses_three_agents() -> None: assert a3.last_messages[0].role == "assistant" and "A2 reply" in (a3.last_messages[0].text or "") +def test_sequential_builder_ensure_trailing_user_turn_defaults_to_false() -> None: + """ensure_trailing_user_turn should default to False, preserving existing behavior.""" + a1 = _EchoAgent(id="agent1", name="A1") + builder = SequentialBuilder(participants=[a1]) + assert builder._ensure_trailing_user_turn is False # type: ignore[attr-defined] + + +async def test_sequential_ensure_trailing_user_turn_disabled_second_agent_sees_assistant_ending() -> None: + """Default(flag off) second agent context still ends on first agent assistant message. + with the default setting the second participant receives a conversation ending on `assistant`""" + + a1 = _CapturingAgent(id="agent1", name="A1", reply_text="A1 reply") + a2 = _CapturingAgent(id="agent2", name="A2", reply_text="A2 reply") + + wf = SequentialBuilder(participants=[a1, a2]).build() + + async for ev in wf.run("hello", stream=True): + if ev.type == "status" and ev.state == WorkflowRunState.IDLE: + break + + seen = a2.last_messages + assert len(seen) == 2 + assert seen[-1].role == "assistant" and "A1 reply" in (seen[-1].text or "") + + +async def test_sequential_ensure_trailing_user_enabled_appends_synthetic_user_message() -> None: + """with ensure_trailing_user_turn=True, the second agent receives a synthetic trailing + user message appended after the first agent assistant reply.""" + + a1 = _CapturingAgent(id="agent1", name="A1", reply_text="A1 reply") + a2 = _CapturingAgent(id="agent2", name="A2", reply_text="A2 reply") + + wf = SequentialBuilder(participants=[a1, a2], ensure_trailing_user_turn=True).build() + + async for ev in wf.run("hello", stream=True): + if ev.type == "status" and ev.state == WorkflowRunState.IDLE: + break + + seen = a2.last_messages + assert len(seen) == 3 + assert seen[0].role == "user" and "hello" in (seen[0].text or "") + assert seen[1].role == "assistant" and "A1 reply" in (seen[1].text or "") + assert seen[2].role == "user" + + +async def test_sequential_ensure_trailing_user_turn_combined_with_chain_only_agent_responses() -> None: + """`chain_only_agent_responses = True` still produces an assistant-ending list + (`[assistant(writer)]`), so the synthetic turn must be appended there too. + """ + + a1 = _CapturingAgent(id="agent1", name="A1", reply_text="A1 reply") + a2 = _CapturingAgent(id="agent2", name="A2", reply_text="A2 reply") + + wf = SequentialBuilder( + participants=[a1, a2], + chain_only_agent_responses=True, + ensure_trailing_user_turn=True, + ).build() + + async for ev in wf.run("hello", stream=True): + if ev.type == "status" and ev.state == WorkflowRunState.IDLE: + break + + seen = a2.last_messages + assert len(seen) == 2 + assert seen[0].role == "assistant" and "A1 reply" in (seen[0].text or "") + assert seen[1].role == "user" + + +async def test_sequential_ensure_trailing_user_turn_with_request_info_wrapped_agent() -> None: + """ensure_trailing_user_turn must also be honored for agents wrapped via with_request_info() + (i.e. threaded through AgentApprovalExecutor -> its inner AgentExecutor). + """ + from agent_framework_orchestrations._orchestration_request_info import AgentRequestInfoResponse + + a1 = _CapturingAgent(id="agent1", name="A1", reply_text="A1 reply") + a2 = _CapturingAgent(id="agent2", name="A2", reply_text="A2 reply") + + wf = SequentialBuilder(participants=[a1, a2], ensure_trailing_user_turn=True).with_request_info(agents=[a1]).build() + + request_events: list[Any] = [] + async for ev in wf.run("hello", stream=True): + if ev.type == "request_info" and isinstance(ev.data, AgentExecutorResponse): + request_events.append(ev) + + assert request_events + responses = {req.request_id: AgentRequestInfoResponse.approve() for req in request_events} + + async for ev in wf.run(stream=True, responses=responses): + if ev.type == "status" and ev.state == WorkflowRunState.IDLE: + break + + seen = a2.last_messages + assert len(seen) == 3 + assert seen[-1].role == "user" + + # --------------------------------------------------------------------------- # with_request_info tests # --------------------------------------------------------------------------- diff --git a/python/packages/postgres/pyproject.toml b/python/packages/postgres/pyproject.toml index 918eb765ce9..1f022226b10 100644 --- a/python/packages/postgres/pyproject.toml +++ b/python/packages/postgres/pyproject.toml @@ -4,7 +4,7 @@ description = "PostgreSQL and pgvector integration for Microsoft Agent Framework authors = [{ name = "Microsoft", email = "af-support@microsoft.com" }] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261002" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/purview/README.md b/python/packages/purview/README.md index d25e84bf695..ba44ca26d85 100644 --- a/python/packages/purview/README.md +++ b/python/packages/purview/README.md @@ -468,7 +468,7 @@ disables enforcement for every error, not just transient ones. Every content item on a message is submitted for evaluation, not just its text: binary/data content is sent as Purview binary content, and function calls, function results and other structured content are serialized to text. Only `usage` content is skipped, because it carries token counts rather than user -data. +data. Annotations on text content, such as citations, are submitted as additional text entries. Evaluation covers the response as it stands when the middleware runs. Because middleware can replace the response afterwards, what is evaluated depends on where the middleware is attached — see diff --git a/python/packages/purview/agent_framework_purview/_processor.py b/python/packages/purview/agent_framework_purview/_processor.py index 919e97723e3..e26a3abee8b 100644 --- a/python/packages/purview/agent_framework_purview/_processor.py +++ b/python/packages/purview/agent_framework_purview/_processor.py @@ -137,7 +137,14 @@ def _map_content(content: Content) -> ContentBase | None: def _map_message_contents(message: Message) -> list[ContentBase]: """Map every non-empty content item of a message to Purview content entries.""" - return [purview_content for content in message.contents if (purview_content := _map_content(content))] + mapped: list[ContentBase] = [] + for content in message.contents: + if purview_content := _map_content(content): + mapped.append(purview_content) + # Annotations (for example citations) are not part of the text, so they are evaluated separately. + if content.type in ("text", "text_reasoning") and content.annotations: + mapped.extend(PurviewTextContent(data=_serialize_for_evaluation(a)) for a in content.annotations) + return mapped def _is_blocking_action(action_info: DlpActionInfo) -> bool: diff --git a/python/packages/purview/pyproject.toml b/python/packages/purview/pyproject.toml index 8e1017f8c78..8a78f0b5769 100644 --- a/python/packages/purview/pyproject.toml +++ b/python/packages/purview/pyproject.toml @@ -4,7 +4,7 @@ description = "Microsoft Purview (Graph dataSecurityAndGovernance) integration f authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://github.com/microsoft/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/purview/tests/purview/test_processor.py b/python/packages/purview/tests/purview/test_processor.py index f5d2fe81efb..70f83f4704c 100644 --- a/python/packages/purview/tests/purview/test_processor.py +++ b/python/packages/purview/tests/purview/test_processor.py @@ -193,6 +193,27 @@ async def test_map_messages_submits_each_content_item_in_separate_request( assert all(entry.content is not None for entry in entries) assert not any(isinstance(entry.content, PurviewTextContent) and entry.content.data == "" for entry in entries) + async def test_map_messages_submits_annotations_for_evaluation(self, processor: ScopedContentProcessor) -> None: + """Test annotations on text content are submitted in addition to the text.""" + from agent_framework import Content + + content = Content.from_text( + "see sources", + annotations=[{"type": "citation", "title": "cited-title-111", "url": "https://example.com/cited"}], + ) + messages = [Message(role="assistant", contents=[content])] + + requests, _ = await processor._map_messages(messages, Activity.UPLOAD_TEXT) + + texts = [ + entry.content.data + for r in requests + for entry in r.content_to_process.content_entries + if isinstance(entry.content, PurviewTextContent) + ] + assert "see sources" in texts + assert any("cited-title-111" in text for text in texts) + async def test_map_messages_skips_empty_text_and_data(self, processor: ScopedContentProcessor) -> None: """Test _map_messages does not create requests for empty text or binary data.""" from agent_framework import Content diff --git a/python/packages/qdrant/pyproject.toml b/python/packages/qdrant/pyproject.toml index 84f46304c04..aefc15f6f45 100644 --- a/python/packages/qdrant/pyproject.toml +++ b/python/packages/qdrant/pyproject.toml @@ -4,7 +4,7 @@ description = "Qdrant vector stores for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com" }] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a260918" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/redis/pyproject.toml b/python/packages/redis/pyproject.toml index 19ba9ecaada..202cfbf9302 100644 --- a/python/packages/redis/pyproject.toml +++ b/python/packages/redis/pyproject.toml @@ -4,7 +4,7 @@ description = "Redis integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10,<3.15" -version = "1.0.0b261002" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/sql-server/pyproject.toml b/python/packages/sql-server/pyproject.toml index d38f2a1a0ec..c15ed3a6697 100644 --- a/python/packages/sql-server/pyproject.toml +++ b/python/packages/sql-server/pyproject.toml @@ -4,7 +4,7 @@ description = "SQL Server native vector integration for Microsoft Agent Framewor authors = [{ name = "Microsoft", email = "af-support@microsoft.com" }] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261002" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/tools/README.md b/python/packages/tools/README.md index 6d585ee6c17..12fea77a9e5 100644 --- a/python/packages/tools/README.md +++ b/python/packages/tools/README.md @@ -172,6 +172,19 @@ To expose a host directory, pass `host_workdir="/path"` (mounted read-only by default; `mount_readonly=False` to allow writes). Swap the container runtime with `docker_binary="podman"`. +Applications that must pass additional Docker options can use +`unsafe_extra_run_args`. These trusted setup options are appended verbatim +and must come only from developer-controlled configuration. Never use values +from users, model output, or other untrusted sources. These options can weaken +or completely remove isolation. Review every option carefully. In particular, +avoid `--privileged`, `--network=host`, host-path volume mounts, and added +capabilities unless the application explicitly requires and secures them. + +Arbitrary Docker configuration is trusted application setup. The +model-facing function accepts only a shell command and cannot choose Docker +options, but the restrictive profile is effective only when the complete +application configuration preserves it. + ## Sandbox tiers at a glance | Use case | Tool | Sandbox | diff --git a/python/packages/tools/agent_framework_tools/shell/_docker.py b/python/packages/tools/agent_framework_tools/shell/_docker.py index 316ba38c15c..a5ad3814a15 100644 --- a/python/packages/tools/agent_framework_tools/shell/_docker.py +++ b/python/packages/tools/agent_framework_tools/shell/_docker.py @@ -78,151 +78,12 @@ DEFAULT_PIDS_LIMIT = 256 DEFAULT_WORKDIR = "/workspace" -# Docker run flags that would silently dismantle the isolation defaults -# (--cap-drop ALL, --security-opt no-new-privileges, --network none, -# --read-only root, pids/memory caps) if spliced in via ``extra_run_args``. -# These are rejected at construction time so the failure surfaces loudly -# rather than as a silently-unsandboxed container at runtime. -_BLOCKED_EXTRA_RUN_FLAGS: tuple[str, ...] = ( - "--privileged", - "--cap-add", - "--security-opt", - "--network", - "--net", - "--volume", - "-v", - "--mount", - "--device", - "--device-cgroup-rule", - "--pid", - "--ipc", - "--userns", - "--user", - "-u", - "--cgroupns", - "--add-host", - "--gpus", - "--read-only", - "--tmpfs", - "--memory", - "-m", - "--memory-swap", - "--pids-limit", -) - -# ``docker run`` long options that take no value. Everything else is assumed to -# consume the following token when its value is not attached with "=", so a -# detached value that happens to start with a dash ("--env-file -vars.env") is -# not mistaken for an option. Booleans are the smaller and more stable half of -# the flag table, and assuming an unknown flag takes a value keeps the -# validator from rejecting configurations that docker accepts. -_VALUELESS_LONG_FLAGS: frozenset[str] = frozenset({ - "--detach", - "--disable-content-trust", - "--help", - "--init", - "--interactive", - "--no-healthcheck", - "--oom-kill-disable", - "--privileged", - "--publish-all", - "--quiet", - "--read-only", - "--rm", - "--sig-proxy", - "--tty", - "--use-api-socket", -}) - -# ``docker run`` short options, split by whether they consume a value. Docker's -# flag parser lets boolean shorthands be clustered ("-it") and lets a -# value-taking shorthand carry its value attached to it, so "-v/:/host:rw" is -# "-v /:/host:rw" and "-u0:0" is "--user 0:0". Resolving which shorthands a -# single-dash token actually sets therefore needs both sets: scanning stops at -# the first value-taking shorthand because the rest of the token is its value. -_BOOLEAN_SHORT_FLAGS = frozenset("diPqt") -_VALUE_SHORT_FLAGS = frozenset("acehlmpuvw") - - -def _short_flags_in_token(token: str) -> list[str]: - """Expand a single-dash token into the short flags it sets.""" - flags: list[str] = [] - for char in token[1:]: - if char in _BOOLEAN_SHORT_FLAGS: - flags.append(f"-{char}") - continue - if char in _VALUE_SHORT_FLAGS: - flags.append(f"-{char}") - # Everything after a value-taking shorthand is its value. - break - # Unknown shorthand: stop rather than misread a value as more flags. - break - return flags - - -def _blocked_flags_in_token(raw: str) -> list[str]: - """Return the blocked flags a single ``docker run`` token resolves to.""" - # Split off any "=value" tail so "--network=host" matches "--network". - flag = raw.split("=", 1)[0] - if flag.startswith("--"): - return [flag] if flag in _BLOCKED_EXTRA_RUN_FLAGS else [] - return [short for short in _short_flags_in_token(flag) if short in _BLOCKED_EXTRA_RUN_FLAGS] - - -def _consumes_next_token(raw: str) -> bool: - """Return whether this token takes the following token as its value. - - Needed so a detached value is not decoded as an option: docker accepts - ``--env-file -vars.env``, where ``-vars.env`` is a filename rather than - ``-v``. - """ - name, sep, _ = raw.partition("=") - if sep: - # Value is attached, e.g. "--network=host". - return False - if name.startswith("--"): - # pflag booleans only accept "--flag=false", never "--flag false". - return name not in _VALUELESS_LONG_FLAGS - shorts = _short_flags_in_token(name) - if not shorts: - return False - if len(name) - 1 > len(shorts): - # Trailing text is the value, e.g. "-v/:/host:rw" or "-m0". - return False - return shorts[-1][1] in _VALUE_SHORT_FLAGS - - -def _validate_extra_run_args(args: Sequence[str]) -> None: - """Reject extra ``docker run`` args that would break the isolation contract. - A caller can otherwise pass ``["--privileged"]``, ``["--network=host"]``, - ``["-v", "/:/host:rw"]``, etc. and silently undo every isolation flag - this tool sets. The blocklist covers the obvious offenders; operators - that genuinely need one of these flags should subclass the tool or - build their own argv rather than slip past the check. - """ - bad: list[str] = [] - index = 0 - while index < len(args): - raw = args[index] - index += 1 - # "-" is a conventional positional, and "--" only ends option parsing; - # neither takes a value, and args after "--" are still worth checking - # so a blocked flag cannot hide behind the marker. - if raw in ("-", "--") or not raw.startswith("-"): - continue - if _blocked_flags_in_token(raw): - bad.append(raw) - if _consumes_next_token(raw): - index += 1 - if bad: - raise ValueError( - "extra_run_args contains flags that would dismantle DockerShellTool's " - f"isolation defaults: {bad}. Override these via dedicated constructor " - "arguments (network, host_workdir, mount_readonly, read_only_root, " - "memory, pids_limit, user) or subclass the tool if you really need " - "to relax the sandbox." - ) +def _validate_unsafe_extra_run_args(args: Sequence[str]) -> None: + """Validate the shape of trusted ``docker run`` extensions.""" + for index, raw in enumerate(args): + if not isinstance(raw, str): + raise ValueError(f"unsafe_extra_run_args contains a non-string token at index {index}: {raw!r}") class DockerNotAvailableError(RuntimeError): @@ -387,26 +248,14 @@ class DockerShellTool: pids_limit: Max processes inside the container. user: ``UID:GID`` to run as. Default ``65534:65534`` (nobody). read_only_root: Mount the root filesystem read-only. Default ``True``. - extra_run_args: Additional args appended to ``docker run``. - - .. warning:: - This parameter can dismantle the tool's isolation - contract. Flags that would undo the default sandbox - (``--privileged``, ``--cap-add``, ``--security-opt``, - ``--network``/``--net``, ``-v``/``--volume``, - ``--mount``, ``--device``, ``--pid``, ``--ipc``, - ``--userns``, ``-u``/``--user``, ``--read-only``, - ``--tmpfs``, ``--add-host``, ``--gpus``, ``--cgroupns``, - ``--device-cgroup-rule``, ``-m``/``--memory``, - ``--memory-swap``, ``--pids-limit``) are rejected at - construction time, including when a short flag carries - its value attached to it (``-v/:/host:rw``) or is - clustered with other short flags (``-itv/:/host:rw``). - Override the corresponding dedicated argument - (``network``, ``host_workdir``, ``mount_readonly``, - ``read_only_root``, ``user``, etc.) instead. If you - genuinely need to relax the sandbox further, subclass - the tool — don't slip past this check. + unsafe_extra_run_args: Trusted application-supplied Docker options + appended verbatim to ``docker run``. Set this only from + developer-controlled configuration; never use values from users, + model output, or other untrusted sources. These options can weaken + or completely remove container isolation. Review every option + carefully. In particular, avoid options such as ``--privileged``, + ``--network=host``, host-path volume mounts, and added capabilities + unless the application explicitly requires and secures them. env: Environment variables to set inside the container. These are passed via ``-e`` and apply to every command. policy: Optional :class:`ShellPolicy`. Less critical than for @@ -443,7 +292,7 @@ def __init__( pids_limit: int = DEFAULT_PIDS_LIMIT, user: str = DEFAULT_CONTAINER_USER, read_only_root: bool = True, - extra_run_args: Sequence[str] | None = None, + unsafe_extra_run_args: Sequence[str] | None = None, env: Mapping[str, str] | None = None, policy: ShellPolicy | None = None, timeout: float | None = 30.0, @@ -455,7 +304,8 @@ def __init__( ) -> None: if mode not in ("persistent", "stateless"): raise ValueError(f"mode must be 'persistent' or 'stateless', got {mode!r}") - _validate_extra_run_args(tuple(extra_run_args or ())) + unsafe_extra_run_args_snapshot = tuple(unsafe_extra_run_args or ()) + _validate_unsafe_extra_run_args(unsafe_extra_run_args_snapshot) self._image = image self._container_name = container_name or f"af-shell-{secrets.token_hex(6)}" self._mode: ShellMode = mode @@ -467,7 +317,7 @@ def __init__( self._pids_limit = pids_limit self._user = user self._read_only_root = read_only_root - self._extra_run_args = tuple(extra_run_args or ()) + self._unsafe_extra_run_args = unsafe_extra_run_args_snapshot self._env = dict(env or {}) self._policy = policy or ShellPolicy() self._timeout = timeout @@ -607,7 +457,7 @@ async def _run_stateless(self, command: str, *, timeout: float | None) -> ShellR argv.extend(["-v", f"{self._host_workdir}:{self._workdir}:{ro}"]) for k, v in self._env.items(): argv.extend(["-e", f"{k}={v}"]) - argv.extend(self._extra_run_args) + argv.extend(self._unsafe_extra_run_args) argv.extend([self._image, self._shell, "-c", command]) started = time.monotonic() @@ -716,7 +566,7 @@ async def _start_container(self) -> None: mount_readonly=self._mount_readonly, read_only_root=self._read_only_root, extra_env=self._env, - extra_args=self._extra_run_args, + extra_args=self._unsafe_extra_run_args, ) proc = await asyncio.create_subprocess_exec( *argv, diff --git a/python/packages/tools/pyproject.toml b/python/packages/tools/pyproject.toml index 3230ec047fd..7fb5992f13b 100644 --- a/python/packages/tools/pyproject.toml +++ b/python/packages/tools/pyproject.toml @@ -4,7 +4,7 @@ description = "Built-in tools for the Microsoft Agent Framework (local shell, an authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0b261008" +version = "1.0.0b261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/packages/tools/tests/test_docker_shell_tool.py b/python/packages/tools/tests/test_docker_shell_tool.py index b4f001877a2..932fdb39bb2 100644 --- a/python/packages/tools/tests/test_docker_shell_tool.py +++ b/python/packages/tools/tests/test_docker_shell_tool.py @@ -29,15 +29,7 @@ ShellResult, is_docker_available, ) -from agent_framework_tools.shell._docker import ( - _BLOCKED_EXTRA_RUN_FLAGS, - _BOOLEAN_SHORT_FLAGS, - _VALUE_SHORT_FLAGS, - _VALUELESS_LONG_FLAGS, - _consumes_next_token, - build_exec_argv, - build_run_argv, -) +from agent_framework_tools.shell._docker import build_exec_argv, build_run_argv _CommunicateOutcome: TypeAlias = tuple[bytes, bytes] | BaseException _WaitOutcome: TypeAlias = int | None | BaseException @@ -213,209 +205,20 @@ def test_build_exec_argv_interactive(): assert argv == ["docker", "exec", "-i", "c", "bash", "--noprofile", "--norc"] -# --------------------------------------------------------------------- extra_run_args validation - - -@pytest.mark.parametrize( - "extra", - [ - ("--privileged",), - ("--network=host",), - ("--network", "host"), - ("--net=host",), - ("-v", "/:/host:rw"), - ("--volume=/etc:/etc",), - ("--cap-add=ALL",), - ("--cap-add", "SYS_ADMIN"), - ("--security-opt", "seccomp=unconfined"), - ("--device", "/dev/kvm"), - ("--pid=host",), - ("--ipc=host",), - ("--userns=host",), - ("--user=0:0",), - ("--read-only=false",), - ("--tmpfs", "/var:rw"), - ("--gpus", "all"), - ("--add-host", "evil:1.2.3.4"), - ("--label", "x=1", "--privileged"), # mixed safe + unsafe - # Short flags carrying an attached value: docker parses these the same - # as the space-separated form, so they must be rejected too. - ("-v/:/host:rw",), - ("-v/var/run/docker.sock:/var/run/docker.sock",), - ("-v=/etc:/etc",), - ("-u0:0",), - # The -u alias of --user, both spellings. - ("-u", "0:0"), - ("-u=0:0",), - # Blocked short flag clustered behind boolean short flags. - ("-itv/:/host:rw",), - ("-itu0:0",), - # Resource caps the tool sets as isolation defaults: overriding these - # silently removes the memory/pids limits. - ("-m0",), - ("-m", "0"), - ("--memory=0",), - ("--memory", "0"), - ("--memory-swap=-1",), - ("--pids-limit=-1",), - ("--pids-limit", "-1"), - ("-m0", "--pids-limit=-1"), - # A blocked flag after a token that consumes nothing is still caught. - ("--", "-u0:0"), - ("-it", "-u0:0"), - ("--privileged", "-v/:/host:rw"), - ], -) -def test_dockershell_rejects_isolation_breaking_extra_run_args(extra): - with pytest.raises(ValueError, match="isolation defaults"): - DockerShellTool(extra_run_args=list(extra)) - - -def test_dockershell_rejection_message_reports_the_raw_token(): - with pytest.raises(ValueError, match=r"-v/:/host:rw"): - DockerShellTool(extra_run_args=("-v/:/host:rw",)) - - -def test_dockershell_accepts_benign_extra_run_args(): - # Should not raise. - DockerShellTool(extra_run_args=("--label", "team=af", "--name-suffix", "x")) - - -@pytest.mark.parametrize( - "extra", - [ - # Long flags that merely share a prefix with a blocked flag. - ("--userland-proxy=false",), - ("--volumes-from", "other"), - ("--network-alias", "svc"), - # Value-taking short flags that are not blocked, including attached - # values whose text contains a blocked flag's letter. - ("-l", "team=af"), - ("-lversion=1",), - ("-e", "USER=root"), - ("-eversion=1",), - ("-w/workspace",), - ("-it",), - # End-of-options marker and a bare dash. - ("--",), - ("-",), - # Detached values that start with a dash belong to the preceding - # option and must not be decoded as options themselves. - ("--env-file", "-variables.env"), - ("--name", "-upper"), - ("--label", "-v/:/host:rw"), - ("--entrypoint", "-v"), - ("-e", "-value"), - ("--hostname", "-unusual"), - # Attached values on non-blocked options are likewise not options. - ("--env-file=-variables.env",), - ], -) -def test_dockershell_accepts_extra_run_args_that_are_not_blocked(extra): - # Should not raise: normalization must not over-reject. - DockerShellTool(extra_run_args=list(extra)) - - -# ``docker run --help`` short options, transcribed so the blocklist can be -# audited without a docker daemon. Keep in sync when bumping the supported -# docker/podman baseline. -_DOCKER_RUN_SHORT_ALIASES = { - "--attach": "-a", - "--cpu-shares": "-c", - "--detach": "-d", - "--env": "-e", - "--hostname": "-h", - "--interactive": "-i", - "--label": "-l", - "--memory": "-m", - "--publish": "-p", - "--publish-all": "-P", - "--quiet": "-q", - "--tty": "-t", - "--user": "-u", - "--volume": "-v", - "--workdir": "-w", -} - - -def test_blocked_flags_cover_every_docker_short_alias(): - """Any blocked long flag with a short alias must block the alias too. - - Guards against a blocked flag being added without its short form, which - would let the alias slip past the isolation check. - """ - missing = [ - long_flag - for long_flag, short in _DOCKER_RUN_SHORT_ALIASES.items() - if long_flag in _BLOCKED_EXTRA_RUN_FLAGS and short not in _BLOCKED_EXTRA_RUN_FLAGS - ] - assert not missing, f"blocked flags missing their docker short alias: {missing}" - - -def test_short_flag_tables_match_docker_run_options(): - """The short-flag tables must classify exactly docker run's shorthands. - - A missing entry would let a blocked shorthand hide inside a cluster; a - spurious one would misread an attached value as further flags. - """ - docker_shorts = set(_DOCKER_RUN_SHORT_ALIASES.values()) - modelled = {f"-{c}" for c in _BOOLEAN_SHORT_FLAGS | _VALUE_SHORT_FLAGS} - assert modelled == docker_shorts - # A shorthand cannot be both boolean and value-taking. - assert not (_BOOLEAN_SHORT_FLAGS & _VALUE_SHORT_FLAGS) - - -# ``docker run --help`` long options that take no value, transcribed for the -# same reason as the short aliases above. -_DOCKER_RUN_BOOLEAN_FLAGS = frozenset({ - "--detach", - "--help", - "--init", - "--interactive", - "--no-healthcheck", - "--oom-kill-disable", - "--privileged", - "--publish-all", - "--quiet", - "--read-only", - "--rm", - "--sig-proxy", - "--tty", - "--use-api-socket", -}) - - -def test_valueless_long_flags_covers_every_docker_boolean(): - """A boolean flag missing from the table would swallow the next token. - - That would let ``("--some-bool", "-u0:0")`` hide a blocked flag, so the - table must list every valueless long option. - """ - missing = _DOCKER_RUN_BOOLEAN_FLAGS - _VALUELESS_LONG_FLAGS - assert not missing, f"boolean flags missing from _VALUELESS_LONG_FLAGS: {sorted(missing)}" - - -@pytest.mark.parametrize( - ("token", "consumes"), - [ - # Long options: "=" attaches the value, otherwise arity decides. - ("--env-file", True), - ("--env-file=vars.env", False), - ("--privileged", False), - ("--read-only", False), - ("--network", True), - # Short options: an attached value means the next token is unrelated. - ("-v", True), - ("-v/:/host:rw", False), - ("-m", True), - ("-m0", False), - ("-it", False), - ("-itv", True), - ("-e", True), - ], -) -def test_consumes_next_token(token, consumes): - assert _consumes_next_token(token) is consumes +# --------------------------------------------------------------------- unsafe_extra_run_args validation + + +@pytest.mark.parametrize("token", [None, 42]) +def test_dockershell_rejects_non_string_unsafe_extra_run_args(token): + with pytest.raises(ValueError, match="unsafe_extra_run_args contains a non-string token"): + DockerShellTool(unsafe_extra_run_args=[token]) # type: ignore[list-item] + + +def test_dockershell_snapshots_unsafe_extra_run_args(): + unsafe = ["--network", "host"] + unsafe_tool = DockerShellTool(unsafe_extra_run_args=unsafe) + unsafe.append("--privileged") + assert unsafe_tool._unsafe_extra_run_args == ("--network", "host") def test_build_exec_argv_non_interactive_appends_dash_c(): @@ -526,6 +329,21 @@ async def test_start_creates_and_reuses_persistent_session() -> None: assert session.start.await_count == 2 +async def test_start_container_passes_unsafe_extra_run_args_verbatim() -> None: + tool = DockerShellTool(unsafe_extra_run_args=("--network", "host")) + proc = _FakeProcess(returncode=0) + + with patch( + "agent_framework_tools.shell._docker.asyncio.create_subprocess_exec", + AsyncMock(return_value=proc), + ) as create_proc: + await tool._start_container() + + assert create_proc.await_args is not None + argv = create_proc.await_args.args + assert argv[argv.index("--network", argv.index("--network") + 1) + 1] == "host" + + async def test_close_terminates_session_and_container() -> None: tool = DockerShellTool() tool._container_started = True @@ -620,8 +438,13 @@ async def test_run_stateless_builds_expected_argv() -> None: assert result.timed_out is False -async def test_run_stateless_places_extra_args_after_isolation_defaults() -> None: - tool = DockerShellTool(mode="stateless", image="alpine:3", shell="sh", extra_run_args=("--label", "team=af")) +async def test_run_stateless_places_unsafe_extra_args_after_isolation_defaults() -> None: + tool = DockerShellTool( + mode="stateless", + image="alpine:3", + shell="sh", + unsafe_extra_run_args=("--label", "team=af"), + ) proc = _FakeProcess(returncode=0, communicate_results=[(b"", b"")]) with patch( @@ -640,6 +463,27 @@ async def test_run_stateless_places_extra_args_after_isolation_defaults() -> Non assert argv.index("--label") < argv.index("alpine:3") +async def test_run_stateless_passes_unsafe_extra_run_args_verbatim() -> None: + tool = DockerShellTool( + mode="stateless", + image="alpine:3", + shell="sh", + unsafe_extra_run_args=("--entrypoint", "/bin/custom"), + ) + proc = _FakeProcess(returncode=0, communicate_results=[(b"", b"")]) + + with patch( + "agent_framework_tools.shell._docker.asyncio.create_subprocess_exec", + AsyncMock(return_value=proc), + ) as create_proc: + await tool._run_stateless("echo hi", timeout=5.0) + + assert create_proc.await_args is not None + argv = create_proc.await_args.args + assert argv[argv.index("--entrypoint") + 1] == "/bin/custom" + assert argv.index("--entrypoint") < argv.index("alpine:3") + + async def test_run_stateless_timeout_reaps_container_when_kill_fails() -> None: tool = DockerShellTool(mode="stateless") command_proc = _FakeProcess( diff --git a/python/packages/typesafe/pyproject.toml b/python/packages/typesafe/pyproject.toml index 57d6905aae2..6a7a8f94a4e 100644 --- a/python/packages/typesafe/pyproject.toml +++ b/python/packages/typesafe/pyproject.toml @@ -4,7 +4,7 @@ description = "TypeSafe AI integration for Microsoft Agent Framework." authors = [{ name = "Microsoft", email = "af-support@microsoft.com" }] readme = "README.md" requires-python = ">=3.10" -version = "1.0.0a261008" +version = "1.0.0a261015" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" diff --git a/python/pyproject.toml b/python/pyproject.toml index 6867344c5fc..a318c267a89 100644 --- a/python/pyproject.toml +++ b/python/pyproject.toml @@ -4,7 +4,7 @@ description = "Microsoft Agent Framework for building AI Agents with Python. Thi authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}] readme = "README.md" requires-python = ">=3.10" -version = "1.21.0" +version = "1.22.0" license-files = ["LICENSE"] urls.homepage = "https://aka.ms/agent-framework" urls.source = "https://github.com/microsoft/agent-framework/tree/main/python" @@ -24,7 +24,7 @@ classifiers = [ "Typing :: Typed", ] dependencies = [ - "agent-framework-core[all]==1.21.0", + "agent-framework-core[all]==1.22.0", ] [dependency-groups] @@ -37,7 +37,7 @@ dev = [ "pytest-timeout==2.4.0", "pytest-retry==1.7.0", "azure-monitor-opentelemetry>=1.8.10,<2", - "mcp[ws]", + "mcp", # Optional SDK used by the agent-hooks tests and isolated source checks. "agent-hooks-sdk>=0.1.0a4,<0.2", "opentelemetry-sdk", @@ -61,7 +61,11 @@ package = false prerelease = "if-necessary" required-version = "==0.13.1" # Security floors for transitive dependencies. -override-dependencies = ["mcp[ws]>=1.27.0,<2", "uvicorn[standard]>=0.34.0", "python-multipart>=0.0.31"] +override-dependencies = [ + "mcp>=2.2.0,<3", + "uvicorn[standard]>=0.34.0", + "python-multipart>=0.0.31", +] environments = [ "sys_platform == 'darwin'", "sys_platform == 'linux'", diff --git a/python/samples/02-agents/harness/build_your_own_claw/claw_step04_production_ready/README.md b/python/samples/02-agents/harness/build_your_own_claw/claw_step04_production_ready/README.md index 48b462ac3ed..a3f18afae64 100644 --- a/python/samples/02-agents/harness/build_your_own_claw/claw_step04_production_ready/README.md +++ b/python/samples/02-agents/harness/build_your_own_claw/claw_step04_production_ready/README.md @@ -51,7 +51,7 @@ export OTEL_EXPORTER_OTLP_ENDPOINT="http://localhost:4317" > likely reason a Toolbox skill fails to load, and the failure actively misleads you: connecting to > the toolbox and **discovering** skills both succeed (`skill://index.json` is toolbox metadata, which > needs no role), so the skill is advertised to the model exactly as expected. Only the first -> `load_skill` fails — with `McpError('Failed to read resource.')` — because reading a skill's *body* +> `load_skill` fails — with `MCPError('Failed to read resource.')` — because reading a skill's *body* > dereferences the project-level skill resource, which does require the role. The toolbox answers > with a bare JSON-RPC `-32603` and no `data`, so nothing in the error names the cause. > diff --git a/python/samples/02-agents/mcp/README.md b/python/samples/02-agents/mcp/README.md index e3fce52794b..73c0843b893 100644 --- a/python/samples/02-agents/mcp/README.md +++ b/python/samples/02-agents/mcp/README.md @@ -13,9 +13,22 @@ The Model Context Protocol (MCP) is an open standard for connecting AI agents to | **Agent as MCP Server** | [`agent_as_mcp_server.py`](agent_as_mcp_server.py) | Shows how to expose an Agent Framework agent as an MCP server that other AI applications can connect to | | **API Key Authentication** | [`mcp_api_key_auth.py`](mcp_api_key_auth.py) | Demonstrates API key authentication with MCP servers using `header_provider`, runtime invocation kwargs, and a command-line API key argument | | **GitHub Integration with PAT** | [`mcp_github_pat.py`](mcp_github_pat.py) | Demonstrates connecting to GitHub's MCP server using Personal Access Token (PAT) authentication | -| **Long-Running Task** | [`mcp_long_running_task.py`](mcp_long_running_task.py) | Demonstrates transparent SEP-2663 long-running task handling for MCP tools that advertise `taskSupport=required`. Self-spawns a stdio MCP child server | | **Progressive Disclosure** | [`mcp_progressive_disclosure.py`](mcp_progressive_disclosure.py) | Demonstrates `use_progressive_disclosure`, `always_load`, `allowed_tools`, and prefixed `list_mcp_tools` / `load_tool` / `unload_tool` names. `load_tool` and `unload_tool` can accept one tool name or multiple names. Self-spawns a stdio MCP child server | -| **Sampling Approval** | [`mcp_sampling_approval.py`](mcp_sampling_approval.py) | Demonstrates gating server-initiated `sampling/createMessage` requests with a `sampling_approval_callback`, plus the `sampling_max_tokens` and `sampling_max_requests` guardrails. MCP sampling is denied by default | + +The previous long-running Tasks sample was removed during the MCP 2.x migration. +Agent Framework does not currently implement the MCP Tasks extension because +the supported Python SDK does not yet expose that runtime. Future Tasks support +is tracked in [#9215](https://github.com/microsoft/agent-framework/issues/9215). + +## Protocol behavior + +- Framework-created connections use SDK auto negotiation: modern servers use + `server/discover`, while older servers fall back to `initialize`. +- The high-level SDK client owns MRTR retries and modern server-directed + response caching. Agent Framework owns catalog subscription recovery and + refresh around the SDK's event stream. +- Caller-supplied `ClientSession` objects remain caller-owned, low-level, and + uncached; they do not gain automatic MRTR. ## Prerequisites @@ -30,8 +43,3 @@ Run `mcp_api_key_auth.py` with the MCP API key as the first command-line argumen For `mcp_github_pat.py`: - `GITHUB_PAT` - Your GitHub Personal Access Token (create at https://github.com/settings/tokens) - -For `mcp_long_running_task.py` (uses Azure OpenAI via Entra-ID): -- Run `az login` once -- `AZURE_OPENAI_ENDPOINT` - your Azure OpenAI resource endpoint, e.g. `https://.openai.azure.com/` -- `AZURE_OPENAI_CHAT_MODEL` (or `AZURE_OPENAI_MODEL`) - the deployment name (e.g. `gpt-4o-mini`) diff --git a/python/samples/02-agents/mcp/mcp_long_running_task.py b/python/samples/02-agents/mcp/mcp_long_running_task.py deleted file mode 100644 index 50ce078471b..00000000000 --- a/python/samples/02-agents/mcp/mcp_long_running_task.py +++ /dev/null @@ -1,181 +0,0 @@ -# Copyright (c) Microsoft. All rights reserved. - -""" -MCP Long-Running Task (SEP-2663) Example - -Demonstrates that ``MCPStdioTool`` transparently drives the MCP long-running -task lifecycle for tools that advertise ``execution.taskSupport == "required"``. -The agent observes a single function-call result; the framework handles the -``tools/call`` → ``tasks/get`` (polled) → ``tasks/result`` sequence in the -background. - -Run it as a single file. The script doubles as both the client and the stdio -MCP child server (the child branch is selected via ``--server``): - - python mcp_long_running_task.py - -Requirements: -- Azure CLI sign-in (``az login``) — used for Entra-ID auth against Azure OpenAI. -- ``AZURE_OPENAI_ENDPOINT`` — your Azure OpenAI resource endpoint, e.g. - ``https://.openai.azure.com/``. -- ``AZURE_OPENAI_CHAT_MODEL`` (or ``AZURE_OPENAI_MODEL``) — the deployment name, - e.g. ``gpt-4o-mini``. - -This sample uses the lower-level ``mcp.server.lowlevel.Server`` so it can: -1. Advertise a tool with ``execution=ToolExecution(taskSupport="required")``. -2. Enable the SDK's experimental task support for the ``tasks/*`` lifecycle. -""" - -import asyncio -import sys -from datetime import timedelta -from typing import Any - -from agent_framework import Agent, MCPStdioTool, MCPTaskOptions -from agent_framework.openai import OpenAIChatClient -from azure.identity import AzureCliCredential -from dotenv import load_dotenv - -load_dotenv() - - -# --------------------------------------------------------------------------- -# MCP stdio server (child-process branch) -# --------------------------------------------------------------------------- - - -async def _run_server() -> None: - """Run a minimal stdio MCP server exposing one long-running tool.""" - import mcp.types as types - from mcp.server.lowlevel import Server - from mcp.server.stdio import stdio_server - - server: Server[Any, Any] = Server("mcp-long-running-task-demo") - # Auto-registers handlers for tasks/get, tasks/result, tasks/cancel, tasks/list - # backed by an in-memory store. - server.experimental.enable_tasks() # ty: ignore[deprecated] - - @server.list_tools() - async def _list_tools() -> list[types.Tool]: # pyright: ignore[reportUnusedFunction] - return [ - types.Tool( - name="slow_summary", - description=( - "Produces a short summary of the supplied text after simulating several seconds of expensive work." - ), - inputSchema={ - "type": "object", - "properties": { - "text": { - "type": "string", - "description": "Text to summarize.", - } - }, - "required": ["text"], - }, - # Advertise that this tool MUST be invoked via the task lifecycle. - execution=types.ToolExecution(taskSupport="required"), - ) - ] - - @server.call_tool() - async def _call_tool(name: str, arguments: dict[str, Any]) -> Any: # pyright: ignore[reportUnusedFunction] - if name != "slow_summary": - raise ValueError(f"Unknown tool: {name}") - - ctx = server.request_context - - async def _work(task: Any) -> types.CallToolResult: - await task.update_status("Thinking...") - await asyncio.sleep(15.0) - text: str = (arguments.get("text") or "").strip() - words = text.split() - preview = " ".join(words[:6]) + ("..." if len(words) > 6 else "") - summary = ( - f"Summarized {len(words)} word(s). First few words: '{preview}'." - if words - else "No input text was provided." - ) - return types.CallToolResult( - content=[types.TextContent(type="text", text=summary)], - isError=False, - ) - - if not ctx.experimental.is_task: - # Client invoked the tool without task augmentation. Return a hard - # error so a misconfigured client surfaces the problem clearly. - return types.CallToolResult( - content=[ - types.TextContent( - type="text", - text="'slow_summary' must be invoked as a task.", - ) - ], - isError=True, - ) - - return await ctx.experimental.run_task(_work) - - async with stdio_server() as (read_stream, write_stream): - await server.run(read_stream, write_stream, server.create_initialization_options()) - - -# --------------------------------------------------------------------------- -# Agent client (default branch) -# --------------------------------------------------------------------------- - - -async def _run_client() -> None: - mcp_tool = MCPStdioTool( - name="LongRunningDemo", - description="Demo MCP server exposing a tool that advertises taskSupport=required.", - command=sys.executable, - args=[__file__, "--server"], - # Optional: cap individual tasks at two minutes. The server may apply its - # own default if this is omitted. - task_options=MCPTaskOptions(default_ttl=timedelta(minutes=2)), - ) - - async with Agent( - client=OpenAIChatClient(credential=AzureCliCredential()), - name="LROAgent", - instructions=( - "You are a helpful assistant. Use the slow_summary tool when the user " - "asks for a summary. Wait for the result and present it directly." - ), - tools=mcp_tool, - ) as agent: - prompt = ( - "Please summarize the following text using your slow_summary tool: " - "'The Model Context Protocol lets language models talk to external " - "tools and resources through a small JSON-RPC surface.'" - ) - - print("=== run() ===") - print(f"User: {prompt}") - response = await agent.run(prompt) - print(f"Agent: {response.text}\n") - - print("=== run(stream=True) ===") - print(f"User: {prompt}") - print("Agent: ", end="", flush=True) - async for update in agent.run(prompt, stream=True): - if update.text: - print(update.text, end="", flush=True) - print() - - -# --------------------------------------------------------------------------- -# Entry point -# --------------------------------------------------------------------------- - - -def main() -> None: - if len(sys.argv) > 1 and sys.argv[1] == "--server": - asyncio.run(_run_server()) - return - asyncio.run(_run_client()) - - -if __name__ == "__main__": - main() diff --git a/python/samples/02-agents/mcp/mcp_progressive_disclosure.py b/python/samples/02-agents/mcp/mcp_progressive_disclosure.py index 4f48e12910f..06024ef6d2f 100644 --- a/python/samples/02-agents/mcp/mcp_progressive_disclosure.py +++ b/python/samples/02-agents/mcp/mcp_progressive_disclosure.py @@ -7,6 +7,7 @@ from agent_framework import Agent, MCPStdioTool from agent_framework.openai import OpenAIChatClient from dotenv import load_dotenv +from mcp.server import ServerRequestContext __doc__ = """ MCP Progressive Disclosure Example @@ -51,20 +52,17 @@ async def _run_server() -> None: from mcp.server.lowlevel import Server from mcp.server.stdio import stdio_server - server: Server[Any, Any] = Server("mcp-progressive-disclosure-demo") - - @server.list_tools() - async def _list_tools() -> list[types.Tool]: # pyright: ignore[reportUnusedFunction] - return [ + async def _list_tools(_ctx: ServerRequestContext[dict[str, Any]], params: types.PaginatedRequestParams | None) -> types.ListToolsResult: + toolList = [ types.Tool( name="get_server_status", description="Return the health of the demo MCP server.", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), types.Tool( name="search_docs", description="Search short documentation snippets about MCP progressive disclosure.", - inputSchema={ + input_schema={ "type": "object", "properties": { "query": { @@ -78,12 +76,15 @@ async def _list_tools() -> list[types.Tool]: # pyright: ignore[reportUnusedFunc types.Tool( name="internal_admin_report", description="Internal server details that are intentionally filtered out by allowed_tools.", - inputSchema={"type": "object", "properties": {}}, + input_schema={"type": "object", "properties": {}}, ), ] + return types.ListToolsResult(tools=toolList) + + async def _call_tool(_ctx: ServerRequestContext[dict[str, Any]], params: types.CallToolRequestParams) -> types.CallToolResult: + name = params.name + arguments = params.arguments or {} - @server.call_tool() - async def _call_tool(name: str, arguments: dict[str, Any]) -> types.CallToolResult: # pyright: ignore[reportUnusedFunction] if name == "get_server_status": text = "The demo MCP server is healthy. Use search_docs for progressive disclosure details." elif name == "search_docs": @@ -96,9 +97,12 @@ async def _call_tool(name: str, arguments: dict[str, Any]) -> types.CallToolResu elif name == "internal_admin_report": text = "This tool should not be discoverable because it is excluded by allowed_tools." else: - text = f"Unknown tool: {name}" + # text = f"Unknown tool: {name}" + return types.CallToolResult(content=[types.TextContent(type="text", text=f"Unknown tool: {name}")], is_error=True) return types.CallToolResult(content=[types.TextContent(type="text", text=text)]) + server: Server[Any] = Server("mcp-progressive-disclosure-demo", on_list_tools=_list_tools, on_call_tool=_call_tool) + async with stdio_server() as (read_stream, write_stream): await server.run(read_stream, write_stream, server.create_initialization_options()) diff --git a/python/samples/02-agents/mcp/mcp_sampling_approval.py b/python/samples/02-agents/mcp/mcp_sampling_approval.py deleted file mode 100644 index 0d359b7aecb..00000000000 --- a/python/samples/02-agents/mcp/mcp_sampling_approval.py +++ /dev/null @@ -1,78 +0,0 @@ -# Copyright (c) Microsoft. All rights reserved. - -import asyncio - -from agent_framework import Agent, MCPStreamableHTTPTool -from agent_framework.openai import OpenAIChatClient -from dotenv import load_dotenv -from mcp import types - -# Load environment variables from .env file -load_dotenv() - -""" -MCP Sampling Approval Example - -MCP servers can send the client a ``sampling/createMessage`` request, asking the -client to run an LLM completion on the server's behalf. Because remote MCP -servers are untrusted third parties, forwarding these server-controlled prompts -to your chat client without review is a confused-deputy risk: a malicious server -could exfiltrate context, force tool calls, or burn through your token budget. - -For that reason Agent Framework **denies MCP sampling by default**. To allow it, -pass a ``sampling_approval_callback`` to the MCP tool. The callback receives the -raw ``CreateMessageRequestParams`` and returns ``True`` to approve or ``False`` -to deny. It may be synchronous or asynchronous, so you can implement a -human-in-the-loop prompt, a policy check, or an audit log. - -Two further guardrails apply to approved requests: -- ``sampling_max_tokens`` caps the server-requested ``maxTokens``. -- ``sampling_max_requests`` limits how many sampling requests a single session - may make. - -To restore the legacy "always approve" behavior (only do this for servers you -trust), pass ``sampling_approval_callback=lambda params: True``. -""" - - -async def approve_sampling(params: types.CreateMessageRequestParams) -> bool: - """Human-in-the-loop approval gate for server-initiated sampling. - - Shows the server-supplied system prompt and messages, then asks the user to - approve or deny. Returning ``False`` rejects the request. - """ - print("\n--- MCP server requested a sampling/createMessage ---") - if params.systemPrompt: - print(f"System prompt: {params.systemPrompt}") - for message in params.messages: - text = getattr(message.content, "text", message.content) - print(f"{message.role}: {text}") - answer = await asyncio.to_thread(input, "Approve this sampling request? [y/N]: ") - return answer.strip().lower() in {"y", "yes"} - - -async def main() -> None: - """Run an agent against an MCP server with a sampling approval gate.""" - async with Agent( - client=OpenAIChatClient(), - name="Agent", - instructions="You are a helpful assistant. Use your MCP tool when answering the user's question.", - tools=MCPStreamableHTTPTool( - name="MCP tool", - description="MCP tool description.", - url="", - # Passing ``client`` enables sampling; the approval callback gates it. - client=OpenAIChatClient(), - sampling_approval_callback=approve_sampling, - sampling_max_tokens=2048, - sampling_max_requests=5, - ), - ) as agent: - query = "Use your MCP tool to help answer this question." - print(f"User: {query}") - result = await agent.run(query) - print(f"Agent: {result.text}") - - -if __name__ == "__main__": - asyncio.run(main()) diff --git a/python/samples/02-agents/middleware/README.md b/python/samples/02-agents/middleware/README.md index 4b7d0bbdfb0..99ad31a454c 100644 --- a/python/samples/02-agents/middleware/README.md +++ b/python/samples/02-agents/middleware/README.md @@ -11,7 +11,7 @@ This folder contains focused middleware samples for `Agent`, chat clients, tools | [`agent_loop_middleware_todos.py`](./agent_loop_middleware_todos.py) | Demonstrates `AgentLoopMiddleware` with a `should_continue` predicate built from a `TodoProvider` via `todos_remaining`, so the agent keeps working while open todos remain. | | [`agent_loop_middleware_judge.py`](./agent_loop_middleware_judge.py) | Demonstrates `AgentLoopMiddleware.with_judge`: a ChatClient judge re-runs the agent until it decides the original request was answered, with `criteria` shared between the agent and the judge. | | [`agent_loop_middleware_report.py`](./agent_loop_middleware_report.py) | Demonstrates composing two `AgentLoopMiddleware` on one agent: an inner `todos_remaining` loop that drafts a report todo-by-todo, wrapped by an outer report-style `with_judge` loop that re-runs it until an editor chat client judges the report publication-ready. | -| [`atr_validation_middleware.py`](./atr_validation_middleware.py) | Demonstrates deterministic validation at the tool-execution boundary: a `FunctionMiddleware` that inspects the validated tool arguments and raises `MiddlewareTermination` before the tool runs when they match an attack rule. Loads the open, MIT-licensed Agent Threat Rules ruleset and runs the real engine locally (`pip install pyatr`), with a built-in deny-list fallback when it is not installed. | +| [`atr_validation_middleware.py`](./atr_validation_middleware.py) | Demonstrates deterministic validation at the tool-execution boundary: a `FunctionMiddleware` that raises `MiddlewareTermination` before the tool runs when the arguments match a high- or critical-severity Agent Threat Rules rule, and logs lower-severity matches as warnings. It is not a dangerous-command filter, so use tool approval in production. Runs the open, MIT-licensed ruleset locally (`pip install pyatr`). | | [`chat_middleware.py`](./chat_middleware.py) | Shows class-based and function-based chat middleware that can observe, modify, and override model calls. | | [`class_based_middleware.py`](./class_based_middleware.py) | Shows class-based agent and function middleware. | | [`decorator_middleware.py`](./decorator_middleware.py) | Demonstrates middleware registration with decorators. | diff --git a/python/samples/02-agents/middleware/atr_validation_middleware.py b/python/samples/02-agents/middleware/atr_validation_middleware.py index 1245439e3a6..eaa2495b94f 100644 --- a/python/samples/02-agents/middleware/atr_validation_middleware.py +++ b/python/samples/02-agents/middleware/atr_validation_middleware.py @@ -36,7 +36,22 @@ point that validates a tool call right before it executes. ATRValidationMiddleware is a FunctionMiddleware that inspects the validated tool arguments in ``FunctionInvocationContext.arguments`` and raises ``MiddlewareTermination`` BEFORE calling -``call_next()`` when the arguments match a known attack pattern, so the tool never runs. +``call_next()`` when the arguments match a high- or critical-severity attack rule, so the tool +never runs. + +Why that threshold: ATR's reference verdict is "deny" or "ask" for every high- or +critical-severity match, where "ask" means a person should confirm the call. This sample has no +confirmation step (``approval_mode="never_require"``), so it treats both as stop. Below high, the +cut is a false-positive trade-off, not ATR's verdict: ATR also returns "ask" for some +medium-severity matches, but those rules also match ordinary commands such as +``curl https://example.com``, so medium- and low-severity matches are logged as warnings and the +tool runs. + +Limits: ATR targets agent attacks such as prompt injection, tool-argument tampering, and +exfiltration; it is not a filter for dangerous shell commands. ``rm -rf ~`` matches only a +medium-severity rule, so it runs with a warning, and some destructive commands match no rule at +all. This middleware does not replace tool approval (``approval_mode="always_require"``) for +tools with side effects. Detection is delegated to Agent Threat Rules (ATR) -- an open, MIT-licensed detection ruleset for AI-agent threats such as prompt injection, tool-argument tampering, and exfiltration. The @@ -48,6 +63,10 @@ logger = logging.getLogger(__name__) +# ATR's verdict for a high or critical match is deny or ask; with no confirmation step here, both +# terminate the run. Medium and low matches are logged and the tool runs. +BLOCKING_SEVERITIES = frozenset({"critical", "high"}) + def _arguments_to_text(arguments: BaseModel | Mapping[str, Any]) -> str: """Flatten tool arguments into a single string for scanning. @@ -71,27 +90,29 @@ def _load_atr_engine() -> Any: return engine -def detect_attack(arguments: BaseModel | Mapping[str, Any]) -> str | None: - """Return the matched ATR rule id, or None when the arguments look benign. +def detect_attack(arguments: BaseModel | Mapping[str, Any]) -> Any | None: + """Return the highest-severity ATR match, or None when the arguments look benign. Runs the real ATR engine over the flattened tool arguments. The text is evaluated as a ``tool_call`` event so it is checked against the rules' ``tool_args`` conditions; ``evaluate`` - sorts matches critical-first, so the first rule id is the highest-severity hit. + sorts matches critical-first, so the first match is the highest-severity hit. The returned + ``pyatr.ATRMatch`` carries ``rule_id``, ``severity`` and ``confidence``; the middleware decides + whether to block. The ruleset replaces a hand-rolled deny-list. For reference, the shape of the patterns ATR - encodes (and that the earlier version of this sample inlined) is, e.g.:: + encodes is, e.g.:: ignore (previous|prior|above) instructions # instruction override / prompt injection send (secret|token|api_key|password) to http... # credential exfiltration (cat|read|open) (.env|id_rsa|/etc/passwd) # sensitive-file access - pyatr ships hundreds of such rules and keeps them maintained, so the sample stays a single - straight-line call instead of a local regex list. + pyatr ships and maintains these rules, so the sample stays a single straight-line call + instead of a local regex list. """ text = _arguments_to_text(arguments) event = pyatr.AgentEvent(content=text, event_type="tool_call", fields={"tool_args": text}) matches = _load_atr_engine().evaluate(event) - return matches[0].rule_id if matches else None + return matches[0] if matches else None # NOTE: approval_mode="never_require" is for sample brevity. Use "always_require" in production; @@ -107,10 +128,12 @@ def get_weather( class ATRValidationMiddleware(FunctionMiddleware): - """Validates tool arguments at the execution boundary and blocks malicious calls. + """Validates tool arguments at the execution boundary and blocks high- or critical-severity matches. - The check is deterministic and runs before the tool executes: on a match it raises + The check is deterministic and runs before the tool executes: on a match whose severity is in + ``BLOCKING_SEVERITIES`` (ATR verdict deny or ask, with no one here to confirm) it raises ``MiddlewareTermination`` so ``call_next()`` is never reached and the tool does not fire. + Medium- and low-severity matches are logged as warnings and the tool runs. """ async def process( @@ -118,18 +141,32 @@ async def process( context: FunctionInvocationContext, call_next: Callable[[], Awaitable[None]], ) -> None: - matched = detect_attack(context.arguments) - if matched is not None: + match = detect_attack(context.arguments) + if match is not None and match.severity in BLOCKING_SEVERITIES: logger.warning( - "[ATRValidationMiddleware] Blocked tool '%s': arguments matched ATR rule %s.", + "[ATRValidationMiddleware] Blocked tool '%s': arguments matched ATR rule %s (%s, %s confidence).", context.function.name, - matched, + match.rule_id, + match.severity, + match.confidence, ) # Raise BEFORE call_next() so the tool is never executed. The matched rule id is # included for auditability. - raise MiddlewareTermination(f"ATR validation blocked tool '{context.function.name}' (rule: {matched})") + raise MiddlewareTermination( + f"ATR validation blocked tool '{context.function.name}' (rule: {match.rule_id})" + ) - logger.info("[ATRValidationMiddleware] Tool '%s' passed ATR validation.", context.function.name) + if match is not None: + # Medium or low severity: surface the finding for review, but let the tool run. + logger.warning( + "[ATRValidationMiddleware] Tool '%s' matched ATR rule %s (%s, %s confidence); not blocking.", + context.function.name, + match.rule_id, + match.severity, + match.confidence, + ) + else: + logger.info("[ATRValidationMiddleware] Tool '%s' passed ATR validation.", context.function.name) await call_next() diff --git a/python/samples/02-agents/observability/README.md b/python/samples/02-agents/observability/README.md index 98fd7513691..60df415655b 100644 --- a/python/samples/02-agents/observability/README.md +++ b/python/samples/02-agents/observability/README.md @@ -220,7 +220,7 @@ Because Agent Framework is **natively instrumented** with OpenTelemetry, you do Whenever there is an active OpenTelemetry span context, Agent Framework automatically propagates trace context to MCP servers via the `params._meta` field of `tools/call` requests. It uses the globally configured OpenTelemetry propagator(s) — W3C Trace Context by default (producing `traceparent` and `tracestate`) — so custom propagators (B3, Jaeger, etc.) are also supported. This enables distributed tracing across agent-to-MCP-server boundaries, compliant with the [MCP `_meta` specification](https://modelcontextprotocol.io/specification/2025-11-25/basic#_meta). -**Scope:** automatic `_meta` injection applies only to MCP sessions that the agent process itself opens — `MCPStreamableHTTPTool`, `MCPStdioTool`, and `MCPWebsocketTool` (or any other client-opened `MCPTool` subclass). It does **not** apply to hosted or provider-managed MCP tool configurations such as `FoundryChatClient.get_mcp_tool(...)`, `OpenAIChatClient.get_mcp_tool(...)`, `AnthropicClient.get_mcp_tool(...)`, `GeminiChatClient.get_mcp_tool(...)`, or toolbox-fetched tools (e.g. `toolbox = await client.get_toolbox(...)` then `Agent(tools=toolbox.tools)`). In those cases the `tools/call` message is issued by the provider service runtime rather than by the agent process, so propagating `traceparent`/`tracestate` across that boundary is the service runtime's responsibility. If you need end-to-end distributed tracing to the downstream MCP server, use a client-opened MCP transport instead of a hosted connector. +**Scope:** automatic `_meta` injection applies only to MCP sessions that the agent process itself opens — `MCPStreamableHTTPTool`, `MCPStdioTool`, or another supported client-opened `MCPTool` subclass. It does **not** apply to hosted or provider-managed MCP tool configurations such as `FoundryChatClient.get_mcp_tool(...)`, `OpenAIChatClient.get_mcp_tool(...)`, `AnthropicClient.get_mcp_tool(...)`, `GeminiChatClient.get_mcp_tool(...)`, or toolbox-fetched tools (e.g. `toolbox = await client.get_toolbox(...)` then `Agent(tools=toolbox.tools)`). In those cases the `tools/call` message is issued by the provider service runtime rather than by the agent process, so propagating `traceparent`/`tracestate` across that boundary is the service runtime's responsibility. If you need end-to-end distributed tracing to the downstream MCP server, use a client-opened MCP transport instead of a hosted connector. ## Configuration diff --git a/python/samples/02-agents/providers/foundry/foundry_chat_client_with_toolbox_skills.py b/python/samples/02-agents/providers/foundry/foundry_chat_client_with_toolbox_skills.py index 8ac192289ef..bcaafe55c9e 100644 --- a/python/samples/02-agents/providers/foundry/foundry_chat_client_with_toolbox_skills.py +++ b/python/samples/02-agents/providers/foundry/foundry_chat_client_with_toolbox_skills.py @@ -2,16 +2,11 @@ import asyncio import os -from collections.abc import Generator -import httpx -from agent_framework import Agent, MCPSkillsSource, SkillsProvider, ToolApprovalMiddleware -from agent_framework.foundry import FoundryChatClient -from azure.core.credentials import TokenCredential -from azure.identity import AzureCliCredential, get_bearer_token_provider +from agent_framework import Agent, SkillsProvider, ToolApprovalMiddleware +from agent_framework.foundry import FoundryChatClient, FoundryToolbox +from azure.identity import AzureCliCredential from dotenv import load_dotenv -from mcp.client.session import ClientSession -from mcp.client.streamable_http import streamable_http_client # Load environment variables from .env file load_dotenv() @@ -19,10 +14,10 @@ """ Foundry Chat Client with Toolbox-Hosted Skills -Discover Agent Skills served by a Microsoft Foundry Toolbox MCP endpoint -and inject them into a ``FoundryChatClient`` agent via ``MCPSkillsSource``. -The toolbox's discovery document (``skill://index.json``) is read once at -startup; SKILL.md bodies are fetched on demand as the agent uses them. +Discover Agent Skills served by a Microsoft Foundry Toolbox MCP endpoint and +inject them into a ``FoundryChatClient`` agent. ``FoundryToolbox`` owns the MCP +connection and authentication, while its skills provider resolves +identity-scoped resources through the current connection. Prerequisites: - A Microsoft Foundry project with a toolbox that exposes @@ -34,54 +29,30 @@ """ -class _BearerAuth(httpx.Auth): - """Attach a fresh Foundry bearer token to every request.""" - - def __init__(self, credential: TokenCredential) -> None: - self._get_token = get_bearer_token_provider(credential, "https://ai.azure.com/.default") - - def auth_flow(self, request: httpx.Request) -> Generator[httpx.Request, httpx.Response, None]: - request.headers["Authorization"] = f"Bearer {self._get_token()}" - yield request - - async def main() -> None: """Example showing toolbox-hosted MCP skills for a Foundry Chat Client agent.""" credential = AzureCliCredential() - - # HTTP client that signs every request with a fresh Foundry bearer token - # and advertises the toolbox preview feature flag, plus the MCP streamable - # HTTP transport that uses it. - async with ( - httpx.AsyncClient( - auth=_BearerAuth(credential), - timeout=httpx.Timeout(30.0, read=300.0), - follow_redirects=True, - ) as http_client, - streamable_http_client( - url=os.environ["FOUNDRY_TOOLBOX_MCP_SERVER_URL"], - http_client=http_client, - ) as (read, write, _), - ClientSession(read, write) as session, - ): - await session.initialize() - - # Discover skills served by the toolbox and inject them as a context provider. - skills_provider = SkillsProvider(MCPSkillsSource(client=session)) - - async with Agent( - client=FoundryChatClient(credential=credential), - name="ToolboxMCPSkillsAgent", - instructions="You are a helpful assistant. Use available skills to answer the user.", - context_providers=[skills_provider], - middleware=[ToolApprovalMiddleware(auto_approval_rules=[SkillsProvider.all_tools_auto_approval_rule])], - ) as agent: - query = input("User: ").strip() # noqa: ASYNC250 - if not query: - return - session = agent.create_session() - response = await agent.run(query, session=session) - print(f"Assistant: {response.text}") + toolbox = FoundryToolbox( + credential, + url=os.environ["FOUNDRY_TOOLBOX_MCP_SERVER_URL"], + load_tools=False, + ) + skills_provider = toolbox.as_skills_provider() + + async with Agent( + client=FoundryChatClient(credential=credential), + name="ToolboxMCPSkillsAgent", + instructions="You are a helpful assistant. Use available skills to answer the user.", + tools=[toolbox], + context_providers=[skills_provider], + middleware=[ToolApprovalMiddleware(auto_approval_rules=[SkillsProvider.all_tools_auto_approval_rule])], + ) as agent: + query = input("User: ").strip() # noqa: ASYNC250 + if not query: + return + session = agent.create_session() + response = await agent.run(query, session=session) + print(f"Assistant: {response.text}") if __name__ == "__main__": diff --git a/python/samples/02-agents/skills/mcp_based_skill/mcp_based_skill.py b/python/samples/02-agents/skills/mcp_based_skill/mcp_based_skill.py index 56379118f40..98dc6b6e34b 100644 --- a/python/samples/02-agents/skills/mcp_based_skill/mcp_based_skill.py +++ b/python/samples/02-agents/skills/mcp_based_skill/mcp_based_skill.py @@ -11,8 +11,7 @@ from agent_framework.foundry import FoundryChatClient from azure.identity import AzureCliCredential from dotenv import load_dotenv -from mcp.client.session import ClientSession -from mcp.client.streamable_http import streamable_http_client +from mcp import Client """ MCP-Based Agent Skills @@ -42,15 +41,13 @@ async def main() -> None: print("Discovering MCP-based skills") print("-" * 60) - # 1. Connect to the MCP server over streamable HTTP. - async with streamable_http_client(url=mcp_url) as (read, write, _), ClientSession(read, write) as session: - await session.initialize() - + # 1. Connect to the MCP server with the high-level MCP Client. + async with Client(mcp_url) as mcp_client: # 2. Build a SkillsProvider that discovers skills over MCP. # MCPSkillsSource reads skill://index.json and creates one # MCPSkill per skill-md entry; SKILL.md bodies are fetched # on demand via resources/read. - skills_provider = SkillsProvider(MCPSkillsSource(client=session)) + skills_provider = SkillsProvider(MCPSkillsSource(client=mcp_client)) # 3. Run the agent. client = FoundryChatClient( diff --git a/python/samples/03-workflows/declarative/invoke_foundry_toolbox_mcp/main.py b/python/samples/03-workflows/declarative/invoke_foundry_toolbox_mcp/main.py index ffef8576a8d..55765b41707 100644 --- a/python/samples/03-workflows/declarative/invoke_foundry_toolbox_mcp/main.py +++ b/python/samples/03-workflows/declarative/invoke_foundry_toolbox_mcp/main.py @@ -19,7 +19,7 @@ from collections.abc import Generator from pathlib import Path -import httpx +import httpx2 as httpx from agent_framework import Agent from agent_framework.declarative import ( DefaultMCPToolHandler, diff --git a/python/samples/04-hosting/mcp/README.md b/python/samples/04-hosting/mcp/README.md index 12e19922d68..3c34adc3eaa 100644 --- a/python/samples/04-hosting/mcp/README.md +++ b/python/samples/04-hosting/mcp/README.md @@ -7,8 +7,8 @@ There are two common ways to build that: native tool schema, validates or parses its arguments, routes the selected tool name, and returns its result. 2. Declare callable tools and let a higher-level server generate the list and - call handlers from those declarations. FastMCP follows this model by deriving - tool schemas and argument parsing from Python function signatures. + call handlers from those declarations. `MCPServer` follows this model by + deriving tool schemas and argument parsing from Python function signatures. Choose between them based on the other MCP features you want to expose and how much control you need over the server, schema, validation, lifecycle, and @@ -44,18 +44,18 @@ Use this when the application needs full control over a custom MCP contract. uv run manual_app.py ``` -### 2. FastMCP server +### 2. MCPServer -[`fastmcp_app.py`](fastmcp_app.py) keeps the same two conversion functions but -replaces the low-level server setup with FastMCP. FastMCP derives and validates +[`mcpserver_app.py`](mcpserver_app.py) keeps the same two conversion functions but +replaces the low-level server setup with `MCPServer`. `MCPServer` derives and validates the tool schema from the decorated `run_agent(...)` function and owns the streamable HTTP server. Use this when a normal Python function signature fully describes the MCP tool. -FastMCP keeps its generated schema and argument parsing aligned. +`MCPServer` keeps its generated schema and argument parsing aligned. ```bash -uv run fastmcp_app.py +uv run mcpserver_app.py ``` ### 3. Agent-derived tool @@ -65,7 +65,7 @@ derives the native tool name and description from the agent, owns the configured argument schema, runs the agent, and applies the same conversion boundary. Use this when one Agent Framework agent should be represented as one generated -MCP tool. Unlike the FastMCP sample, this adapter derives the contract from the +MCP tool. Unlike the `MCPServer` sample, this adapter derives the contract from the agent and its adapter configuration rather than a decorated function signature. ```bash @@ -106,8 +106,8 @@ uv run workflow_app.py | Concept | Responsibility | Used by | |---|---|---| -| `mcp_to_run(...)` | Converts validated MCP arguments into Agent Framework messages and selected chat options. | `manual_app.py`, `fastmcp_app.py` | -| `mcp_from_run(...)` | Converts a completed agent response into MCP result content blocks. | `manual_app.py`, `fastmcp_app.py` | +| `mcp_to_run(...)` | Converts validated MCP arguments into Agent Framework messages and selected chat options. | `manual_app.py`, `mcpserver_app.py` | +| `mcp_from_run(...)` | Converts a completed agent response into MCP result content blocks. | `manual_app.py`, `mcpserver_app.py` | | `AgentMCPTool` | Derives one native MCP tool from an agent and keeps schema, execution, and conversion aligned. | `agent_app.py`, `session_app.py` | | `WorkflowMCPTool` | Derives one native MCP tool from a workflow start executor and converts workflow outputs. | `workflow_app.py` | @@ -130,8 +130,11 @@ dependency set using PEP 723 inline script metadata. ## Common behavior -- **No framework choice:** the package does not select FastMCP, Starlette, +- **No framework choice:** the package does not select `MCPServer`, Starlette, Uvicorn, stdio, or streamable HTTP. +- **Protocol eras:** the supported MCP 2.x SDK serves modern requests and + retains legacy `initialize` compatibility. Modern server-to-client input uses + MRTR. - **Chat options:** only explicitly selected MCP arguments are passed to the model client. The samples expose `reasoning_effort` as an example, but any option valid for the agent can be exposed. @@ -139,8 +142,9 @@ dependency set using PEP 723 inline script metadata. multimodal input content blocks. The samples do not present an application-specific image schema as protocol behavior. - **Streaming:** streamable HTTP can carry multiple MCP messages, but a tool - call still produces one final `CallToolResult`. Progress notifications and - experimental deferred tasks remain application-owned protocol features. + call still produces one final `CallToolResult`. The SDK does not expose the + current Tasks extension runtime, so these samples do not implement deferred + tasks. - **Authentication:** the local endpoints are intentionally unauthenticated. MCP transport session identifiers are not user authorization. Production servers must authenticate and authorize before loading tenant or user state. diff --git a/python/samples/04-hosting/mcp/agent_app.py b/python/samples/04-hosting/mcp/agent_app.py index 312759969c7..d65f965ff9d 100644 --- a/python/samples/04-hosting/mcp/agent_app.py +++ b/python/samples/04-hosting/mcp/agent_app.py @@ -4,7 +4,7 @@ # "agent-framework-foundry", # "agent-framework-hosting-mcp", # "azure-identity", -# "mcp>=1.27.0,<2", +# "mcp>=2.2.0,<3", # "starlette>=0.40", # "uvicorn>=0.30", # ] @@ -32,6 +32,7 @@ import os from collections.abc import AsyncGenerator from contextlib import asynccontextmanager +from typing import Any import uvicorn from agent_framework import Agent @@ -39,12 +40,24 @@ from agent_framework_hosting_mcp import AgentMCPTool from azure.identity.aio import DefaultAzureCredential from mcp import types +from mcp.server import ServerRequestContext from mcp.server.lowlevel import Server from mcp.server.streamable_http_manager import StreamableHTTPSessionManager from starlette.applications import Starlette from starlette.routing import Mount -server = Server("agent-framework-hosting-mcp-sample") + +async def list_tools(_ctx: ServerRequestContext[dict[str, Any]], params: types.PaginatedRequestParams | None) -> types.ListToolsResult: + """Describe the app-owned MCP tool schema.""" + return await agent_tool.list_tools() + + +async def call_tool(_ctx: ServerRequestContext[dict[str, Any]], params: types.CallToolRequestParams) -> types.CallToolResult: + """Run the app-owned tool with native MCP and Agent Framework values.""" + return await agent_tool.call_tool(params.name, params.arguments) + + +server = Server("agent-framework-hosting-mcp-sample", on_list_tools=list_tools, on_call_tool=call_tool) credential = DefaultAzureCredential() agent = Agent( client=FoundryChatClient( @@ -70,18 +83,6 @@ ) -@server.list_tools() -async def list_tools() -> list[types.Tool]: - """Describe the app-owned MCP tool schema.""" - return await agent_tool.list_tools() - - -@server.call_tool() -async def call_tool(name: str, arguments: dict[str, object] | None) -> list[types.ContentBlock]: - """Run the app-owned tool with native MCP and Agent Framework values.""" - return await agent_tool.call_tool(name, arguments) - - session_manager = StreamableHTTPSessionManager( app=server, event_store=None, diff --git a/python/samples/04-hosting/mcp/manual_app.py b/python/samples/04-hosting/mcp/manual_app.py index fb22c5c6a1e..00e7d266807 100644 --- a/python/samples/04-hosting/mcp/manual_app.py +++ b/python/samples/04-hosting/mcp/manual_app.py @@ -4,7 +4,7 @@ # "agent-framework-foundry", # "agent-framework-hosting-mcp", # "azure-identity", -# "mcp>=1.27.0,<2", +# "mcp>=2.2.0,<3", # "starlette>=0.40", # "uvicorn>=0.30", # ] @@ -25,13 +25,15 @@ import os from collections.abc import AsyncGenerator from contextlib import asynccontextmanager +from typing import Any import uvicorn from agent_framework import Agent from agent_framework.foundry import FoundryChatClient from agent_framework_hosting_mcp import mcp_from_run, mcp_to_run from azure.identity.aio import DefaultAzureCredential -from mcp import types +from mcp import MCPError, types +from mcp.server import ServerRequestContext from mcp.server.lowlevel import Server from mcp.server.streamable_http_manager import StreamableHTTPSessionManager from starlette.applications import Starlette @@ -46,28 +48,14 @@ } } -server = Server("agent-framework-hosting-mcp-manual-sample") -credential = DefaultAzureCredential() -agent = Agent( - client=FoundryChatClient( - project_endpoint=os.environ["FOUNDRY_PROJECT_ENDPOINT"], - model=os.environ["FOUNDRY_MODEL"], - credential=credential, - ), - name="ManualMCPAgent", - description="Answer requests through a manually defined MCP tool.", - instructions="Answer the user's request clearly and concisely.", -) - -@server.list_tools() -async def list_tools() -> list[types.Tool]: +async def list_tools(_ctx: ServerRequestContext[dict[str, Any]], params: types.PaginatedRequestParams | None) -> types.ListToolsResult: """Return the app-owned native MCP tool definition.""" - return [ + return types.ListToolsResult(tools=[ types.Tool( name="run_agent_manually", description=agent.description or "", - inputSchema={ + input_schema={ "type": "object", "properties": { TASK_ARGUMENT: { @@ -80,21 +68,37 @@ async def list_tools() -> list[types.Tool]: "additionalProperties": False, }, ) - ] + ]) -@server.call_tool() -async def call_tool(name: str, arguments: dict[str, object] | None) -> list[types.ContentBlock]: +async def call_tool(_ctx: ServerRequestContext[dict[str, Any]], params: types.CallToolRequestParams) -> types.CallToolResult: """Convert, run, and render without the agent-backed adapter.""" + name = params.name + arguments = params.arguments or {} + if name != "run_agent_manually": - raise ValueError(f"Unknown MCP tool: {name}") + raise MCPError(types.INVALID_PARAMS, f"Unknown MCP tool: {name}") run = mcp_to_run( arguments, argument_name=TASK_ARGUMENT, chat_option_arguments=CHAT_OPTION_ARGUMENTS, ) result = await agent.run(run["messages"], options=run["options"]) - return mcp_from_run(result) + return types.CallToolResult(content=mcp_from_run(result)) + + +server = Server("agent-framework-hosting-mcp-manual-sample", on_list_tools=list_tools, on_call_tool=call_tool) +credential = DefaultAzureCredential() +agent = Agent( + client=FoundryChatClient( + project_endpoint=os.environ["FOUNDRY_PROJECT_ENDPOINT"], + model=os.environ["FOUNDRY_MODEL"], + credential=credential, + ), + name="ManualMCPAgent", + description="Answer requests through a manually defined MCP tool.", + instructions="Answer the user's request clearly and concisely.", +) session_manager = StreamableHTTPSessionManager( diff --git a/python/samples/04-hosting/mcp/fastmcp_app.py b/python/samples/04-hosting/mcp/mcpserver_app.py similarity index 72% rename from python/samples/04-hosting/mcp/fastmcp_app.py rename to python/samples/04-hosting/mcp/mcpserver_app.py index 60ab0e6a4f9..7d34e933eb4 100644 --- a/python/samples/04-hosting/mcp/fastmcp_app.py +++ b/python/samples/04-hosting/mcp/mcpserver_app.py @@ -4,16 +4,16 @@ # "agent-framework-foundry", # "agent-framework-hosting-mcp", # "azure-identity", -# "mcp>=1.27.0,<2", +# "mcp>=2.2.0,<3", # ] # /// -# Run with: uv run fastmcp_app.py +# Run with: uv run mcpserver_app.py # Copyright (c) Microsoft. All rights reserved. -"""Host an Agent Framework agent with FastMCP and the conversion helpers. +"""Host an Agent Framework agent with MCPServer and the conversion helpers. -FastMCP derives the native MCP tool schema from the decorated function +MCPServer derives the native MCP tool schema from the decorated function signature. The Agent Framework hosting package only converts the validated arguments and completed agent response at the protocol boundary. @@ -36,7 +36,7 @@ from agent_framework_hosting_mcp import mcp_from_run, mcp_to_run from azure.identity.aio import DefaultAzureCredential from mcp import types -from mcp.server.fastmcp import FastMCP +from mcp.server.mcpserver import MCPServer credential = DefaultAzureCredential() agent = Agent( @@ -52,20 +52,15 @@ @asynccontextmanager -async def lifespan(_server: FastMCP[None]) -> AsyncGenerator[None]: - """Close the model credential when the FastMCP server stops.""" +async def lifespan(_server: MCPServer[None]) -> AsyncGenerator[None]: + """Close the model credential when the MCP server stops.""" async with credential: yield -server = FastMCP( - name="agent-framework-hosting-fastmcp-sample", +server = MCPServer( + name="agent-framework-hosting-mcpserver-sample", instructions="Expose an Agent Framework agent as an MCP tool.", - host="127.0.0.1", - port=8000, - streamable_http_path="/mcp", - json_response=True, - stateless_http=True, lifespan=lifespan, ) @@ -78,8 +73,8 @@ async def lifespan(_server: FastMCP[None]) -> AsyncGenerator[None]: async def run_agent( task: str, reasoning_effort: Literal["low", "medium", "high"] | None = None, -) -> list[types.ContentBlock]: - """Run the agent with FastMCP-validated arguments.""" +) -> types.CallToolResult: + """Run the agent with MCPServer-validated arguments.""" arguments: dict[str, object] = {"task": task} if reasoning_effort is not None: arguments["reasoning_effort"] = reasoning_effort @@ -90,8 +85,15 @@ async def run_agent( options=run["options"], stream=False, ) - return mcp_from_run(result) + return types.CallToolResult(content=mcp_from_run(result)) if __name__ == "__main__": - server.run(transport="streamable-http") + server.run( + transport="streamable-http", + host="127.0.0.1", + port=8000, + streamable_http_path="/mcp", + stateless_http=True, + json_response=True, + ) diff --git a/python/samples/04-hosting/mcp/pyproject.toml b/python/samples/04-hosting/mcp/pyproject.toml index 2d1bb331dcb..d5b40a5d5fc 100644 --- a/python/samples/04-hosting/mcp/pyproject.toml +++ b/python/samples/04-hosting/mcp/pyproject.toml @@ -9,7 +9,7 @@ dependencies = [ "agent-framework-hosting", "agent-framework-hosting-mcp", "azure-identity", - "mcp>=1.27.0,<2", + "mcp>=2.2.0,<3", "starlette>=0.40", "uvicorn>=0.30", ] diff --git a/python/samples/04-hosting/mcp/session_app.py b/python/samples/04-hosting/mcp/session_app.py index c0cfb21d38c..7f9cac39f1f 100644 --- a/python/samples/04-hosting/mcp/session_app.py +++ b/python/samples/04-hosting/mcp/session_app.py @@ -4,7 +4,7 @@ # "agent-framework-foundry", # "agent-framework-hosting-mcp", # "azure-identity", -# "mcp>=1.27.0,<2", +# "mcp>=2.2.0,<3", # "starlette>=0.40", # "uvicorn>=0.30", # ] @@ -36,6 +36,7 @@ import os from collections.abc import AsyncGenerator from contextlib import asynccontextmanager +from typing import Any import uvicorn from agent_framework import Agent, InMemoryHistoryProvider @@ -43,13 +44,32 @@ from agent_framework_hosting import AgentState from agent_framework_hosting_mcp import AgentMCPTool from azure.identity.aio import DefaultAzureCredential -from mcp import types +from mcp import MCPError, types +from mcp.server import ServerRequestContext from mcp.server.lowlevel import Server from mcp.server.streamable_http_manager import StreamableHTTPSessionManager from starlette.applications import Starlette from starlette.routing import Mount -server = Server("agent-framework-hosting-mcp-session-sample") + +async def list_tools(_ctx: ServerRequestContext[dict[str, Any]], params: types.PaginatedRequestParams | None) -> types.ListToolsResult: + """Return the agent-derived MCP tool definition.""" + return await agent_tool.list_tools() + + +async def call_tool(_ctx: ServerRequestContext[dict[str, Any]], params: types.CallToolRequestParams) -> types.CallToolResult: + """Serialize calls per app-owned session before using ``AgentState``.""" + name = params.name + arguments = params.arguments or {} + session_id = arguments.get("session_id") if arguments else None + if not isinstance(session_id, str) or not session_id: + raise MCPError(types.INVALID_PARAMS, "MCP tool argument 'session_id' must be a non-empty string.") + lock = session_locks.setdefault(session_id, asyncio.Lock()) + async with lock: + return await agent_tool.call_tool(name, arguments) + + +server = Server("agent-framework-hosting-mcp-session-sample", on_list_tools=list_tools, on_call_tool=call_tool) credential = DefaultAzureCredential() agent = Agent( client=FoundryChatClient( @@ -90,23 +110,6 @@ session_locks: dict[str, asyncio.Lock] = {} -@server.list_tools() -async def list_tools() -> list[types.Tool]: - """Return the agent-derived MCP tool definition.""" - return await agent_tool.list_tools() - - -@server.call_tool() -async def call_tool(name: str, arguments: dict[str, object] | None) -> list[types.ContentBlock]: - """Serialize calls per app-owned session before using ``AgentState``.""" - session_id = arguments.get("session_id") if arguments else None - if not isinstance(session_id, str) or not session_id: - raise ValueError("MCP tool argument 'session_id' must be a non-empty string.") - lock = session_locks.setdefault(session_id, asyncio.Lock()) - async with lock: - return await agent_tool.call_tool(name, arguments) - - session_manager = StreamableHTTPSessionManager( app=server, event_store=None, diff --git a/python/samples/04-hosting/mcp/workflow_app.py b/python/samples/04-hosting/mcp/workflow_app.py index 8334e91526b..a510fb7fa16 100644 --- a/python/samples/04-hosting/mcp/workflow_app.py +++ b/python/samples/04-hosting/mcp/workflow_app.py @@ -2,7 +2,7 @@ # requires-python = ">=3.10" # dependencies = [ # "agent-framework-hosting-mcp", -# "mcp>=1.27.0,<2", +# "mcp>=2.2.0,<3", # "starlette>=0.40", # "uvicorn>=0.30", # ] @@ -23,12 +23,14 @@ from collections.abc import AsyncGenerator from contextlib import asynccontextmanager from dataclasses import dataclass +from typing import Any import uvicorn from agent_framework import WorkflowBuilder, WorkflowContext, executor from agent_framework_hosting import WorkflowState from agent_framework_hosting_mcp import WorkflowMCPTool from mcp import types +from mcp.server import ServerRequestContext from mcp.server.lowlevel import Server from mcp.server.streamable_http_manager import StreamableHTTPSessionManager from starlette.applications import Starlette @@ -63,25 +65,24 @@ async def draft(request: DraftRequest, ctx: WorkflowContext[object, str]) -> Non ).build() -server = Server("agent-framework-hosting-mcp-workflow-sample") -workflow_tool = WorkflowMCPTool( - WorkflowState(create_workflow, cache_target=False), - name="draft_content", -) - - -@server.list_tools() -async def list_tools() -> list[types.Tool]: +async def list_tools(_ctx: ServerRequestContext[dict[str, Any]], params: types.PaginatedRequestParams | None) -> types.ListToolsResult: """Return the workflow-derived MCP tool definition.""" return await workflow_tool.list_tools() -@server.call_tool() -async def call_tool(name: str, arguments: dict[str, object] | None) -> list[types.ContentBlock]: +async def call_tool(_ctx: ServerRequestContext[dict[str, Any]], params: types.CallToolRequestParams) -> types.CallToolResult: """Run a fresh workflow instance with validated MCP arguments.""" + name = params.name + arguments = params.arguments or {} return await workflow_tool.call_tool(name, arguments) +server = Server("agent-framework-hosting-mcp-workflow-sample", on_list_tools=list_tools, on_call_tool=call_tool) +workflow_tool = WorkflowMCPTool( + WorkflowState(create_workflow, cache_target=False), + name="draft_content", +) + session_manager = StreamableHTTPSessionManager( app=server, event_store=None, diff --git a/python/samples/05-end-to-end/ag_ui_workflow_handoff/backend/server.py b/python/samples/05-end-to-end/ag_ui_workflow_handoff/backend/server.py index c33774b65b6..08aaa65740d 100644 --- a/python/samples/05-end-to-end/ag_ui_workflow_handoff/backend/server.py +++ b/python/samples/05-end-to-end/ag_ui_workflow_handoff/backend/server.py @@ -315,6 +315,9 @@ def create_app() -> FastAPI: app=app, agent=demo_workflow, path="/handoff_demo", + # Local sample only. For production, remove (or set False) and provide + # authorization_scope_resolver backed by authenticated request context. + single_user=True, ) @app.get("/healthz") diff --git a/python/samples/community-projects.md b/python/samples/community-projects.md index 5b7435a45b2..425000a278c 100644 --- a/python/samples/community-projects.md +++ b/python/samples/community-projects.md @@ -18,7 +18,6 @@ the Agent Framework Python SDK. Entries are reviewed against the | Name | Brief description | Scenarios | Project | Issues | | --- | --- | --- | --- | --- | | Engram | Durable memory tools with optional middleware for Agent Framework agents. | Explicit cross-session memory recall and persistence; automatic recall and capture | [agent-framework-engram](https://github.com/lumetra-io/engram-agent-framework) | [Open an issue](https://github.com/lumetra-io/engram-agent-framework/issues/new/choose) | -| Quilzo | A self-hosted MCP gateway that offers an organization's MCP servers to agents with pinned tool definitions, per-role access, held calls and an audit log. | Calling MCP tools through `MCPStreamableHTTPTool` with a token; tool calls that wait for a person to approve; audit of every tool call | [Quilzo with Agent Framework](https://quilzo.github.io/frameworks/#agent-framework) | [Open an issue](https://github.com/quilzo/quilzo/issues/new/choose) | ## Context providers diff --git a/python/uv.lock b/python/uv.lock index f3e412a8767..eb0500deed9 100644 --- a/python/uv.lock +++ b/python/uv.lock @@ -68,7 +68,7 @@ members = [ "agent-framework-typesafe", ] overrides = [ - { name = "mcp", extras = ["ws"], specifier = ">=1.27.0,<2" }, + { name = "mcp", specifier = ">=2.2.0,<3" }, { name = "python-multipart", specifier = ">=0.0.31" }, { name = "uvicorn", extras = ["standard"], specifier = ">=0.34.0" }, ] @@ -115,7 +115,7 @@ wheels = [ [[package]] name = "agent-framework" -version = "1.21.0" +version = "1.22.0" source = { virtual = "." } dependencies = [ { name = "agent-framework-core", extra = ["all"] }, @@ -125,7 +125,7 @@ dependencies = [ dev = [ { name = "agent-hooks-sdk" }, { name = "azure-monitor-opentelemetry" }, - { name = "mcp", extra = ["ws"] }, + { name = "mcp" }, { name = "opentelemetry-sdk" }, { name = "poethepoet" }, { name = "pytest" }, @@ -154,7 +154,7 @@ requires-dist = [{ name = "agent-framework-core", extras = ["all"], editable = " dev = [ { name = "agent-hooks-sdk", specifier = ">=0.1.0a4,<0.2" }, { name = "azure-monitor-opentelemetry", specifier = ">=1.8.10,<2" }, - { name = "mcp", extras = ["ws"] }, + { name = "mcp" }, { name = "opentelemetry-sdk" }, { name = "poethepoet", specifier = "==0.48.0" }, { name = "pytest", specifier = "==9.1.1" }, @@ -175,7 +175,7 @@ tool-runtime = [ [[package]] name = "agent-framework-a2a" -version = "1.0.0b261002" +version = "1.0.0b261015" source = { editable = "packages/a2a" } dependencies = [ { name = "a2a-sdk" }, @@ -190,7 +190,7 @@ requires-dist = [ [[package]] name = "agent-framework-ag-ui" -version = "1.5.1" +version = "1.6.0" source = { editable = "packages/ag-ui" } dependencies = [ { name = "ag-ui-protocol" }, @@ -232,7 +232,7 @@ test = [{ name = "agent-framework-orchestrations", editable = "packages/orchestr [[package]] name = "agent-framework-anthropic" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/anthropic" } dependencies = [ { name = "agent-framework-core" }, @@ -259,7 +259,7 @@ dev = [ [[package]] name = "agent-framework-azure-ai-search" -version = "1.0.0b261002" +version = "1.0.0b261015" source = { editable = "packages/azure-ai-search" } dependencies = [ { name = "agent-framework-core" }, @@ -276,7 +276,7 @@ requires-dist = [ [[package]] name = "agent-framework-azure-contentunderstanding" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/azure-contentunderstanding" } dependencies = [ { name = "agent-framework-core" }, @@ -297,7 +297,7 @@ requires-dist = [ [[package]] name = "agent-framework-azure-cosmos" -version = "1.0.0b261002" +version = "1.0.0b261015" source = { editable = "packages/azure-cosmos" } dependencies = [ { name = "agent-framework-core" }, @@ -314,7 +314,7 @@ requires-dist = [ [[package]] name = "agent-framework-azure-cosmos-memory" -version = "1.0.0a261008" +version = "1.0.0a261015" source = { editable = "packages/azure-cosmos-memory" } dependencies = [ { name = "agent-framework-core" }, @@ -345,7 +345,7 @@ dev = [ [[package]] name = "agent-framework-azure-documentdb" -version = "1.0.0a261002" +version = "1.0.0a261015" source = { editable = "packages/azure-documentdb" } dependencies = [ { name = "agent-framework-core" }, @@ -375,7 +375,7 @@ wheels = [ [[package]] name = "agent-framework-bedrock" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/bedrock" } dependencies = [ { name = "agent-framework-core" }, @@ -392,7 +392,7 @@ requires-dist = [ [[package]] name = "agent-framework-chatkit" -version = "1.0.0b261002" +version = "1.0.0b261015" source = { editable = "packages/chatkit" } dependencies = [ { name = "agent-framework-core" }, @@ -407,7 +407,7 @@ requires-dist = [ [[package]] name = "agent-framework-claude" -version = "1.0.0b261002" +version = "1.0.0b261015" source = { editable = "packages/claude" } dependencies = [ { name = "agent-framework-core" }, @@ -422,7 +422,7 @@ requires-dist = [ [[package]] name = "agent-framework-copilotstudio" -version = "1.0.0b261002" +version = "1.0.0b261015" source = { editable = "packages/copilotstudio" } dependencies = [ { name = "agent-framework-core" }, @@ -441,7 +441,7 @@ requires-dist = [ [[package]] name = "agent-framework-core" -version = "1.21.0" +version = "1.22.0" source = { editable = "packages/core" } dependencies = [ { name = "msgspec" }, @@ -484,7 +484,8 @@ all = [ { name = "agent-framework-purview" }, { name = "agent-framework-redis" }, { name = "agent-framework-tools" }, - { name = "mcp", extra = ["ws"] }, + { name = "mcp" }, + { name = "tenacity" }, ] [package.dev-dependencies] @@ -526,13 +527,14 @@ requires-dist = [ { name = "agent-framework-purview", marker = "extra == 'all'", editable = "packages/purview" }, { name = "agent-framework-redis", marker = "python_full_version < '3.15' and extra == 'all'", editable = "packages/redis" }, { name = "agent-framework-tools", marker = "extra == 'all'", editable = "packages/tools" }, - { name = "mcp", marker = "extra == 'all'", specifier = ">=1.24.0,<2" }, + { name = "mcp", marker = "extra == 'all'", specifier = ">=2.2.0,<3" }, { name = "msgspec", specifier = ">=0.20.0,<0.23" }, { name = "opentelemetry-api", specifier = ">=1.39.0,<2" }, { name = "pydantic", specifier = ">=2,<3" }, { name = "python-dotenv", specifier = ">=1,<2" }, { name = "pyyaml", specifier = ">=6.0,<7.0" }, { name = "regex", specifier = ">=2024.11.6" }, + { name = "tenacity", marker = "extra == 'all'", specifier = ">=9.1.4,<9.2.0" }, { name = "typing-extensions", specifier = ">=4.15.0,<5" }, ] provides-extras = ["all"] @@ -547,11 +549,12 @@ dev = [ [[package]] name = "agent-framework-declarative" -version = "1.2.1" +version = "1.3.0" source = { editable = "packages/declarative" } dependencies = [ { name = "agent-framework-core" }, { name = "httpx" }, + { name = "httpx2" }, { name = "powerfx", marker = "python_full_version < '3.14'" }, { name = "pyyaml" }, ] @@ -565,6 +568,7 @@ dev = [ requires-dist = [ { name = "agent-framework-core", editable = "packages/core" }, { name = "httpx", specifier = ">=0.27,<0.29" }, + { name = "httpx2", specifier = ">=2.0.0,<3" }, { name = "powerfx", marker = "python_full_version < '3.14'", specifier = ">=0.0.32,<0.0.35" }, { name = "pyyaml", specifier = ">=6.0,<7.0" }, ] @@ -574,7 +578,7 @@ dev = [{ name = "types-pyyaml", specifier = "==6.0.12.20260906" }] [[package]] name = "agent-framework-devui" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/devui" } dependencies = [ { name = "agent-framework-core" }, @@ -612,7 +616,7 @@ provides-extras = ["dev", "all"] [[package]] name = "agent-framework-duckdb" -version = "1.0.0a261002" +version = "1.0.0a261015" source = { editable = "packages/duckdb" } dependencies = [ { name = "agent-framework-core" }, @@ -644,7 +648,7 @@ wheels = [ [[package]] name = "agent-framework-foundry" -version = "1.14.1" +version = "1.15.0" source = { editable = "packages/foundry" } dependencies = [ { name = "agent-framework-core" }, @@ -667,7 +671,7 @@ requires-dist = [ [[package]] name = "agent-framework-foundry-hosting" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/foundry_hosting" } dependencies = [ { name = "agent-framework-core" }, @@ -675,7 +679,8 @@ dependencies = [ { name = "azure-ai-agentserver-invocations" }, { name = "azure-ai-agentserver-responses" }, { name = "httpx" }, - { name = "mcp", extra = ["ws"] }, + { name = "httpx2" }, + { name = "mcp" }, ] [package.metadata] @@ -685,12 +690,13 @@ requires-dist = [ { name = "azure-ai-agentserver-invocations", specifier = ">=1.1.0,<2" }, { name = "azure-ai-agentserver-responses", specifier = ">=2.2.0b1,<3" }, { name = "httpx", specifier = ">=0.28,<1" }, - { name = "mcp", specifier = ">=1.24.0,<2" }, + { name = "httpx2", specifier = ">=2.0.0,<3" }, + { name = "mcp", specifier = ">=2.2.0,<3" }, ] [[package]] name = "agent-framework-foundry-local" -version = "1.0.0b260730" +version = "1.0.0b261015" source = { editable = "packages/foundry_local" } dependencies = [ { name = "agent-framework-core" }, @@ -707,7 +713,7 @@ requires-dist = [ [[package]] name = "agent-framework-gemini" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/gemini" } dependencies = [ { name = "agent-framework-core" }, @@ -722,7 +728,7 @@ requires-dist = [ [[package]] name = "agent-framework-github-copilot" -version = "2.0.2" +version = "2.1.0" source = { editable = "packages/github_copilot" } dependencies = [ { name = "agent-framework-core" }, @@ -737,7 +743,7 @@ requires-dist = [ [[package]] name = "agent-framework-hosting" -version = "1.0.0a261008" +version = "1.0.0a261015" source = { editable = "packages/hosting" } dependencies = [ { name = "agent-framework-core" }, @@ -748,7 +754,7 @@ requires-dist = [{ name = "agent-framework-core", editable = "packages/core" }] [[package]] name = "agent-framework-hosting-a2a" -version = "1.0.0a260918" +version = "1.0.0a261015" source = { editable = "packages/hosting-a2a" } dependencies = [ { name = "a2a-sdk" }, @@ -765,12 +771,12 @@ requires-dist = [ [[package]] name = "agent-framework-hosting-mcp" -version = "1.0.0a260918" +version = "1.0.0a261015" source = { editable = "packages/hosting-mcp" } dependencies = [ { name = "agent-framework-core" }, { name = "agent-framework-hosting" }, - { name = "mcp", extra = ["ws"] }, + { name = "mcp" }, { name = "pydantic" }, ] @@ -778,13 +784,13 @@ dependencies = [ requires-dist = [ { name = "agent-framework-core", editable = "packages/core" }, { name = "agent-framework-hosting", editable = "packages/hosting" }, - { name = "mcp", specifier = ">=1.11.0,<2" }, + { name = "mcp", specifier = ">=2.2.0,<3" }, { name = "pydantic", specifier = ">=2,<3" }, ] [[package]] name = "agent-framework-hosting-responses" -version = "1.0.0a261008" +version = "1.0.0a261015" source = { editable = "packages/hosting-responses" } dependencies = [ { name = "agent-framework-core" }, @@ -813,7 +819,7 @@ test = [ [[package]] name = "agent-framework-hosting-telegram" -version = "1.0.0a261002" +version = "1.0.0a261015" source = { editable = "packages/hosting-telegram" } dependencies = [ { name = "agent-framework-core" }, @@ -828,7 +834,7 @@ requires-dist = [ [[package]] name = "agent-framework-hyperlight" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/hyperlight" } dependencies = [ { name = "agent-framework-core" }, @@ -847,7 +853,7 @@ requires-dist = [ [[package]] name = "agent-framework-mem0" -version = "1.0.0b261002" +version = "1.0.0b261015" source = { editable = "packages/mem0" } dependencies = [ { name = "agent-framework-core" }, @@ -862,7 +868,7 @@ requires-dist = [ [[package]] name = "agent-framework-mistral" -version = "1.0.0b260918" +version = "1.0.0b261015" source = { editable = "packages/mistral" } dependencies = [ { name = "agent-framework-core" }, @@ -877,7 +883,7 @@ requires-dist = [ [[package]] name = "agent-framework-mongodb" -version = "1.0.0a261002" +version = "1.0.0a261015" source = { editable = "packages/mongodb" } dependencies = [ { name = "agent-framework-core" }, @@ -892,7 +898,7 @@ requires-dist = [ [[package]] name = "agent-framework-monty" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/monty" } dependencies = [ { name = "agent-framework-core" }, @@ -907,7 +913,7 @@ requires-dist = [ [[package]] name = "agent-framework-ollama" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/ollama" } dependencies = [ { name = "agent-framework-core" }, @@ -922,7 +928,7 @@ requires-dist = [ [[package]] name = "agent-framework-openai" -version = "1.16.0" +version = "1.17.0" source = { editable = "packages/openai" } dependencies = [ { name = "agent-framework-core" }, @@ -937,7 +943,7 @@ requires-dist = [ [[package]] name = "agent-framework-oracle" -version = "1.0.0a261008" +version = "1.0.0a261015" source = { editable = "packages/oracle" } dependencies = [ { name = "agent-framework-core" }, @@ -952,7 +958,7 @@ requires-dist = [ [[package]] name = "agent-framework-orchestrations" -version = "1.3.1" +version = "1.3.2" source = { editable = "packages/orchestrations" } dependencies = [ { name = "agent-framework-core" }, @@ -963,7 +969,7 @@ requires-dist = [{ name = "agent-framework-core", editable = "packages/core" }] [[package]] name = "agent-framework-postgres" -version = "1.0.0a261002" +version = "1.0.0a261015" source = { editable = "packages/postgres" } dependencies = [ { name = "agent-framework-core" }, @@ -981,7 +987,7 @@ requires-dist = [ [[package]] name = "agent-framework-purview" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/purview" } dependencies = [ { name = "agent-framework-core" }, @@ -998,7 +1004,7 @@ requires-dist = [ [[package]] name = "agent-framework-qdrant" -version = "1.0.0a260918" +version = "1.0.0a261015" source = { editable = "packages/qdrant" } dependencies = [ { name = "agent-framework-core" }, @@ -1013,7 +1019,7 @@ requires-dist = [ [[package]] name = "agent-framework-redis" -version = "1.0.0b261002" +version = "1.0.0b261015" source = { editable = "packages/redis" } dependencies = [ { name = "agent-framework-core" }, @@ -1033,7 +1039,7 @@ requires-dist = [ [[package]] name = "agent-framework-sql-server" -version = "1.0.0a261002" +version = "1.0.0a261015" source = { editable = "packages/sql-server" } dependencies = [ { name = "agent-framework-core" }, @@ -1048,7 +1054,7 @@ requires-dist = [ [[package]] name = "agent-framework-tools" -version = "1.0.0b261008" +version = "1.0.0b261015" source = { editable = "packages/tools" } dependencies = [ { name = "agent-framework-core" }, @@ -1063,7 +1069,7 @@ requires-dist = [ [[package]] name = "agent-framework-typesafe" -version = "1.0.0a261008" +version = "1.0.0a261015" source = { editable = "packages/typesafe" } dependencies = [ { name = "agent-framework-core" }, @@ -1840,7 +1846,7 @@ source = { registry = "https://pypi.org/simple" } dependencies = [ { name = "anyio" }, { name = "jsonschema" }, - { name = "mcp", extra = ["ws"] }, + { name = "mcp" }, { name = "sniffio" }, ] sdist = { url = "https://files.pythonhosted.org/packages/9b/74/635d38e2ef813a2d1ba4ff7f3de736c35ee3bce9ebf4a5b7e89f3293604f/claude_agent_sdk-0.2.163.tar.gz", hash = "sha256:269821ad5acff5967522ff15f444b0598840fd9bdc45c645de569a5478061a53", size = 365180, upload-time = "2026-09-30T19:46:37.125Z" } @@ -2587,15 +2593,6 @@ http2 = [ { name = "h2" }, ] -[[package]] -name = "httpx-sse" -version = "0.4.3" -source = { registry = "https://pypi.org/simple" } -sdist = { url = "https://files.pythonhosted.org/packages/0f/4c/751061ffa58615a32c31b2d82e8482be8dd4a89154f003147acee90f2be9/httpx_sse-0.4.3.tar.gz", hash = "sha256:9b1ed0127459a66014aec3c56bebd93da3c1bc8bb6618c8082039a44889a755d", size = 15943, upload-time = "2025-10-10T21:48:22.271Z" } -wheels = [ - { url = "https://files.pythonhosted.org/packages/d2/fd/6668e5aec43ab844de6fc74927e155a3b37bf40d7c3790e49fc0406b6578/httpx_sse-0.4.3-py3-none-any.whl", hash = "sha256:0ac1c9fe3c0afad2e0ebb25a934a59f4c7823b60792691f779fad2c5568830fc", size = 8960, upload-time = "2025-10-10T21:48:21.158Z" }, -] - 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{ name = "mcp", extra = ["ws"] }, + { name = "mcp" }, { name = "openai" }, { name = "pydantic" }, { name = "pyjwt" }, @@ -4665,20 +4670,6 @@ wheels = [ { url = "https://files.pythonhosted.org/packages/e6/c0/3f7c604ac93ec47a36a3733d6e7717b7096f0989f669d4133bd3e85f3375/pydantic_monty_runtime-0.0.23-py3-none-win_amd64.whl", hash = "sha256:742375f494e298a4f96933ac3694a0fe34c9cddd9b666669bc193f348bbed0b8", size = 10404629, upload-time = "2026-09-05T19:26:01.143Z" }, ] -[[package]] -name = "pydantic-settings" -version = "2.15.0" -source = { registry = "https://pypi.org/simple" } -dependencies = [ - { name = "pydantic" }, - { name = "python-dotenv" }, - { name = "typing-inspection" }, -] -sdist = { url = "https://files.pythonhosted.org/packages/68/ca/31c57507b13119d7d3cfa1576dad2911a4861e3be07b579395f4e9d393f9/pydantic_settings-2.15.0.tar.gz", hash = "sha256:694b793e84f766ba76a90ebdefc01d0a9a045dab0382bee70393da93712ad117", size = 261253, upload-time = "2026-08-07T09:24:57.419Z" } -wheels = [ - { url = "https://files.pythonhosted.org/packages/30/a4/2bffa9f8e804325a09867f0e9d30795c80ea9f8d62560bd1b6ad6220eb2f/pydantic_settings-2.15.0-py3-none-any.whl", hash = "sha256:0ba092c291c94baceb5eff768aa0d56400a457585bc0175925a5a5510303da42", size = 69413, upload-time = "2026-08-07T09:24:55.839Z" }, -] - [[package]] name = "pygments" version = "2.21.0" From ba2d48627fb448c9df4afc3bd62197859903eec1 Mon Sep 17 00:00:00 2001 From: Markus Ecker Date: Tue, 20 Oct 2026 14:14:17 +0200 Subject: [PATCH 3/3] Relay tool-result media through TOOL_CALL_RESULT and the snapshot A function result holding media (for example one AGUIChatClient built from a 1.0 ContentPart[] TOOL_CALL_RESULT) reached _emit_tool_result, which serialized only content.result: the outward TOOL_CALL_RESULT and the snapshot tool message in flow.tool_results were text-only, so an AgentFrameworkAgent in front of an AG-UI server dropped the media. _emit_tool_result now encodes such a result with _function_result_to_agui_content and threads the parts through _emit_tool_result_common to the event (unless a display payload overrides it) and the snapshot message. The approval-path TOOL_CALL_RESULT events do the same, matching the snapshot messages _resolved_tool_result_snapshot_messages already rebuilt with parts. MCP results keep their Host-payload handling. Tests: an AgentFrameworkAgent run over a stub agent yielding a media result, and a relay through AGUIChatClient fed by a mock AG-UI server. --- python/packages/ag-ui/AGENTS.md | 4 +- .../ag-ui/agent_framework_ag_ui/_agent_run.py | 13 ++- .../agent_framework_ag_ui/_run_common.py | 44 ++++---- .../ag-ui/tests/ag_ui/test_protocol_1_0.py | 104 +++++++++++++++++- 4 files changed, 141 insertions(+), 24 deletions(-) diff --git a/python/packages/ag-ui/AGENTS.md b/python/packages/ag-ui/AGENTS.md index 179667b1edc..87a40da4ee5 100644 --- a/python/packages/ag-ui/AGENTS.md +++ b/python/packages/ag-ui/AGENTS.md @@ -39,7 +39,9 @@ AG-UI protocol integration for building agent UIs with the AG-UI standard. through `snapshot_messages_for_wire` when building a `MESSAGES_SNAPSHOT`, which rewrites them to the 1.0 shape when 1.0 is installed (1.0 rejects `binary`). - A 1.0 `ContentPart[]` tool result becomes the function result's Content items, so media reaches chat clients with - rich function output; text-only results stay text. + rich function output; text-only results stay text. In the other direction, a function result holding media goes + out as content parts on `TOOL_CALL_RESULT` and in the snapshot tool message (`_function_result_to_agui_content`), + so `AgentFrameworkAgent` relays it intact; MCP results keep their Host-payload handling. - Interrupted runs complete with `RUN_FINISHED.outcome.type == "interrupt"` and canonical `outcome.interrupts`; do not document or add new flows that depend on the legacy top-level `RUN_FINISHED.interrupt` field. - `Interrupt` and `ResumeEntry` come from the `ag-ui-protocol` package (`ag_ui.core`), not from an Agent Framework-specific interrupt model. - Tool approval interrupts, including approvals surfaced through workflow `request_info`, advertise standard diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py b/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py index 1d1a523cfb9..a4d7c0d9025 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_agent_run.py @@ -98,6 +98,7 @@ from ._predictive_state import PredictiveStateHandler from ._tooling import collect_server_tools, merge_tools from ._run_common import ( + _UNSET, _build_run_started_event, FlowState, _approval_interrupt_for_function_call, # type: ignore @@ -743,18 +744,26 @@ def _make_approval_tool_result_events(resolved_approval_results: list[Content]) llm_str = _stringify_tool_result(raw) display_result = _extract_tool_result_display(resolved) has_host_payload, host_payload = _resolve_tool_result_host_payload(resolved, display_result) - ui_str = _resolve_ui_payload(llm_str, host_payload if has_host_payload else display_result) + ui_content: str | list[dict[str, Any]] = _resolve_ui_payload( + llm_str, host_payload if has_host_payload else display_result + ) replay_properties: dict[str, Any] = {} if has_host_payload: replay_properties = _mcp_host_history_fields( host_payload, _model_items_for_agui_replay(resolved, llm_str), ) + elif display_result is _UNSET: + # Media in the result goes out as content parts, as it does in the rebuilt snapshot message + # (_resolved_tool_result_snapshot_messages). + agui_content = _function_result_to_agui_content(resolved) + if isinstance(agui_content, list): + ui_content = agui_content events.append( ToolCallResultEvent( message_id=generate_event_id(), tool_call_id=resolved.call_id, - content=ui_str, + content=ui_content, # type: ignore[arg-type] role="tool", **replay_properties, ) diff --git a/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py b/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py index 9cecd13fa4b..9e4ab409058 100644 --- a/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py +++ b/python/packages/ag-ui/agent_framework_ag_ui/_run_common.py @@ -36,6 +36,7 @@ ) from agent_framework import Content, ResponseStream +from ._message_adapters import _function_result_to_agui_content from ._predictive_state import PredictiveStateHandler from ._state import TOOL_RESULT_DISPLAY_KEY, TOOL_RESULT_STATE_KEY from ._utils import ( @@ -662,9 +663,7 @@ def _emit_text(content: Content, flow: FlowState, skip_text: bool = False) -> li flow.text_delta_count = 0 _open_text_segment(flow, flow.message_id) events.append(TextMessageStartEvent(message_id=flow.message_id, role="assistant")) - elif flow.accumulated_text and content.text == flow.accumulated_text and ( - flow.text_delta_count > 1 - ): + elif flow.accumulated_text and content.text == flow.accumulated_text and (flow.text_delta_count > 1): # Guard against full-message replay chunks that can appear after streaming deltas. # A duplicate equal to the whole accumulated text is only a safe replay signal when # the text already streamed in more than one chunk. With a single prior chunk the @@ -861,12 +860,17 @@ def _emit_tool_result_common( display_result: Any = _UNSET, # noqa: ANN401 snapshot_result: Any = _UNSET, # noqa: ANN401 model_items: list[dict[str, Any]] | None = None, + content_parts: list[dict[str, Any]] | None = None, ) -> list[BaseEvent]: """Shared helper for emitting ToolCallResult (and ToolCallEnd when still open). Both ``_emit_tool_result`` (standard function results) and ``_emit_mcp_tool_result`` (MCP server tool results) delegate to this function. + ``content_parts`` is the result as AG-UI 1.0 content parts when it holds media; the + TOOL_CALL_RESULT event (unless a display payload overrides it) and the snapshot tool + message then carry the parts, so the media survives the relay and the next request. + ``TOOL_CALL_END`` is emitted only when ``call_id`` was opened in this run and has not already been ended (including synthetic protocol closure before an approval interrupt). On resume, a fresh ``FlowState`` never STARTs that id, @@ -887,15 +891,24 @@ def _emit_tool_result_common( flow.tool_calls_ended.add(call_id) result_content = _stringify_tool_result(raw_result) - ui_result_content = _resolve_ui_payload(result_content, display_result) + ui_result_content: str | list[dict[str, Any]] = _resolve_ui_payload(result_content, display_result) + if content_parts is not None and display_result is _UNSET: + ui_result_content = content_parts snapshot_result_content = _resolve_ui_payload(result_content, snapshot_result) message_id = generate_event_id() + event_replay_properties: dict[str, Any] = {} + if snapshot_result is not _UNSET: + event_replay_properties = _mcp_host_history_fields( + snapshot_result_content, + [{"type": "text", "text": result_content}] if model_items is None else model_items, + ) events.append( ToolCallResultEvent( message_id=message_id, tool_call_id=call_id, - content=ui_result_content, + content=ui_result_content, # type: ignore[arg-type] role="tool", + **event_replay_properties, ) ) @@ -903,22 +916,9 @@ def _emit_tool_result_common( "id": message_id, "role": "tool", "toolCallId": call_id, - "content": result_content, + "content": result_content if content_parts is None else content_parts, + **event_replay_properties, } - event_replay_properties: dict[str, Any] = {} - if snapshot_result is not _UNSET: - event_replay_properties = _mcp_host_history_fields( - snapshot_result_content, - [{"type": "text", "text": result_content}] if model_items is None else model_items, - ) - snapshot_message.update(event_replay_properties) - events[-1] = ToolCallResultEvent( - message_id=message_id, - tool_call_id=call_id, - content=ui_result_content, - role="tool", - **event_replay_properties, - ) flow.tool_results.append(snapshot_message) # A result closes the current tool-call segment: a later call opens a new # one, so `call A -> result A -> call B` snapshots as two call/result pairs @@ -968,6 +968,9 @@ def _emit_tool_result( has_host_payload, host_payload = _resolve_tool_result_host_payload(content, display_result) if has_host_payload and display_result is _UNSET: display_result = host_payload + # A result holding media is relayed as content parts (with ag-ui-protocol 1.0); MCP results keep their own + # handling, and _function_result_to_agui_content returns text for them. + agui_content = raw_result if has_host_payload else _function_result_to_agui_content(content) return _emit_tool_result_common( content.call_id, raw_result, @@ -979,6 +982,7 @@ def _emit_tool_result( model_items=( _model_items_for_agui_replay(content, _stringify_tool_result(raw_result)) if has_host_payload else None ), + content_parts=agui_content if isinstance(agui_content, list) else None, ) diff --git a/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py b/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py index e82a410c870..f2939260c0e 100644 --- a/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py +++ b/python/packages/ag-ui/tests/ag_ui/test_protocol_1_0.py @@ -5,6 +5,7 @@ import json from typing import Any +import httpx import pytest from ag_ui.core import ( EventType, @@ -15,8 +16,9 @@ ToolCallResultEvent, ToolCallStartEvent, ) -from agent_framework import Content, Message +from agent_framework import Agent, AgentResponseUpdate, Content, Message +from agent_framework_ag_ui import AgentFrameworkAgent, AGUIChatClient from agent_framework_ag_ui._agent_run import _resolved_tool_result_snapshot_messages from agent_framework_ag_ui._event_converters import AGUIEventConverter from agent_framework_ag_ui._message_adapters import ( @@ -320,3 +322,103 @@ def test_approval_snapshot_rebuild_keeps_tool_result_media() -> None: assert rebuilt[("call-1", 1)][0]["content"] == [ {"type": "image", "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}} ] + + +def _relayed_tool_result(events: list[Any]) -> tuple[list[dict[str, Any]], dict[str, Any]]: + """The TOOL_CALL_RESULT content parts of a run and the tool message of its final messages snapshot.""" + result_event = next(event for event in events if isinstance(event, ToolCallResultEvent)) + assert isinstance(result_event.content, list) + snapshot = next(event for event in reversed(events) if isinstance(event, MessagesSnapshotEvent)) + tool_message = next(message for message in snapshot.messages if message.role == "tool") + return ( + [part.model_dump(by_alias=True, exclude_none=True) for part in result_event.content], + tool_message.model_dump(by_alias=True, exclude_none=True), + ) + + +@requires_1_0 +async def test_agent_run_relays_tool_result_media() -> None: + """Media in a function result an agent yields reaches TOOL_CALL_RESULT and the messages snapshot as parts.""" + from conftest import StubAgent # pyrefly: ignore[missing-import] # pyright: ignore[reportMissingImports] + + agent = AgentFrameworkAgent( + agent=StubAgent( + updates=[ + AgentResponseUpdate( + contents=[Content.from_function_call(call_id="call-1", name="chart", arguments="{}")], + role="assistant", + ), + AgentResponseUpdate( + contents=[ + Content.from_function_result( + call_id="call-1", + result=[ + Content.from_text("chart:"), + Content.from_uri(uri="https://example.com/chart.png", media_type="image/png"), + ], + ) + ], + role="tool", + ), + AgentResponseUpdate(contents=[Content.from_text("done")], role="assistant"), + ] + ) + ) + expected_parts = [ + {"type": "text", "text": "chart:"}, + {"type": "image", "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}}, + ] + + events = [ + event + async for event in agent.run( + {"threadId": "t1", "runId": "r1", "messages": [{"role": "user", "content": "chart"}]} + ) + ] + + parts, tool_message = _relayed_tool_result(events) + assert parts == expected_parts + assert tool_message["content"] == expected_parts + + +@requires_1_0 +async def test_agent_relays_tool_result_media_from_an_agui_server() -> None: + """Tool media an AGUIChatClient receives is relayed by AgentFrameworkAgent as content parts, not as text.""" + image = { + "type": "image", + "source": {"type": "url", "value": "https://example.com/chart.png", "mimeType": "image/png"}, + } + upstream_events = [ + {"type": "RUN_STARTED", "threadId": "thread_1", "runId": "run_1", "protocolVersion": "1.0"}, + {"type": "TOOL_CALL_START", "toolCallId": "call-1", "toolCallName": "chart"}, + {"type": "TOOL_CALL_ARGS", "toolCallId": "call-1", "delta": "{}"}, + {"type": "TOOL_CALL_END", "toolCallId": "call-1"}, + { + "type": "TOOL_CALL_RESULT", + "messageId": "result-1", + "toolCallId": "call-1", + "content": [{"type": "text", "text": "chart:"}, image], + }, + {"type": "TEXT_MESSAGE_START", "messageId": "msg_1", "role": "assistant"}, + {"type": "TEXT_MESSAGE_CONTENT", "messageId": "msg_1", "delta": "done"}, + {"type": "TEXT_MESSAGE_END", "messageId": "msg_1"}, + {"type": "RUN_FINISHED", "threadId": "thread_1", "runId": "run_1"}, + ] + + async def handler(request: httpx.Request) -> httpx.Response: + body = "".join(f"data: {json.dumps(event)}\n\n" for event in upstream_events) + return httpx.Response(200, headers={"content-type": "text/event-stream"}, content=body.encode()) + + async with httpx.AsyncClient(transport=httpx.MockTransport(handler)) as http_client: + client = AGUIChatClient(endpoint="https://agui.example.test/", http_client=http_client) + agent = AgentFrameworkAgent(agent=Agent(client=client, name="relay")) + events = [ + event + async for event in agent.run( + {"threadId": "t1", "runId": "r1", "messages": [{"role": "user", "content": "chart"}]} + ) + ] + + parts, tool_message = _relayed_tool_result(events) + assert parts == [{"type": "text", "text": "chart:"}, image] + assert tool_message["content"] == [{"type": "text", "text": "chart:"}, image]