fix(sdk): address beta testing and migration gaps

src/adcp/migrate/v3_to_v4.py

@@ -49,6 +49,7 @@
 from __future__ import annotations
 
 import argparse
+import importlib
 import json
 import re
 import sys
@@ -170,8 +171,16 @@
 # module. Numbered codegen names cannot be mapped safely by symbol alone: the
 # same bare name may describe a different schema in another generated module.
 GENERATED_POC_SOURCE_SYMBOL_MAP: dict[tuple[str, str], str] = {
+    ("core.account", "GovernanceAgent"): "adcp.types.CoreGovernanceAgent",
     ("core.account_ref", "AccountReference1"): "adcp.types.AccountIdReference",
     ("core.account_ref", "AccountReference2"): "adcp.types.InlineAccountReference",
+    ("core.creative_asset", "CreativeAsset"): "adcp.types.LegacyCreativeAsset",
+    ("core.creative_filters", "CreativeFilters"): "adcp.types.LegacyCreativeFilters",
+    ("core.product_filters", "Country"): "adcp.types.ProductFilterCountry",
+    ("core.product_format_declaration", "ProductFormatDeclaration"): (
+        "adcp.types.LegacyProductFormatDeclaration"
+    ),
+    ("core.property", "Identifier"): "adcp.types.PropertyIdentifier",
     ("core.vendor_pricing_option", "VendorPricingOption"): ("adcp.types.VendorPricingOptionUnion"),
     ("core.vendor_pricing_option", "VendorPricingOption1"): ("adcp.types.CpmVendorPricingOption"),
     ("core.vendor_pricing_option", "VendorPricingOption2"): (
@@ -196,6 +205,11 @@
     ("media_buy.update_media_buy_response", "UpdateMediaBuyResponse2"): (
         "adcp.types.LegacyUpdateMediaBuyErrorResponse"
     ),
+    ("media_buy.update_media_buy_response", "UpdateMediaBuyResponse1"): (
+        "adcp.types.LegacyUpdateMediaBuySuccessResponse"
+    ),
+    ("creative.list_creatives_request", "Sort"): "adcp.types.ListCreativesSort",
+    ("signals.get_signals_response", "Signal"): "adcp.types.GetSignalsSignal",
 }
 
 
@@ -210,12 +224,38 @@
 )
 
 
-def _generated_symbol_replacement(module: str, symbol: str) -> str | None:
+def _proposed_generated_symbol_replacement(module: str, symbol: str) -> str | None:
     return GENERATED_POC_SOURCE_SYMBOL_MAP.get((module, symbol)) or GENERATED_POC_SYMBOL_MAP.get(
         symbol
     )
 
 
+def _replacement_is_identical(module: str, symbol: str, replacement: str) -> bool:
+    """Verify that a private class and its proposed public target are identical."""
+    if not module or not replacement.startswith("adcp.types."):
+        return False
+    try:
+        source_module = importlib.import_module(f"adcp.types.generated_poc.{module}")
+        public_module = importlib.import_module("adcp.types")
+        source = getattr(source_module, symbol)
+        public = getattr(public_module, replacement.removeprefix("adcp.types."))
+    except (AttributeError, ImportError):
+        return False
+    return source is public
+
+
+def _generated_symbol_replacement(module: str, symbol: str) -> str | None:
+    replacement = _proposed_generated_symbol_replacement(module, symbol)
+    if replacement is None or not _replacement_is_identical(module, symbol, replacement):
+        return None
+    return replacement
+
+
+def _unsafe_replacement_hint(module: str, symbol: str, replacement: str) -> str:
+    source = f"adcp.types.generated_poc.{module}.{symbol}"
+    return f"SKIP: source {source} is not identical to {replacement} — " "manual rewrite required"
+
+
 # Regex for numbered Assets direct imports (``Assets5``, ``Assets14``, etc).
 # Bare ``Assets`` (no digits) is a legitimate base class alias; the
 # regex requires at least one digit to avoid false positives.
@@ -575,6 +615,19 @@ def scan_file(
                         # the import-path fix covers it.
                         if auto_apply and symbol in NUMBERED_ASSETS_RENAMES:
                             continue
+                        proposed = _proposed_generated_symbol_replacement(module, symbol)
+                        if proposed is not None:
+                            findings.append(
+                                Finding(
+                                    kind="flag_private",
+                                    path=str(path),
+                                    line=lineno,
+                                    column=sym_col,
+                                    before=symbol,
+                                    hint=_unsafe_replacement_hint(module, symbol, proposed),
+                                )
+                            )
+                            continue
                         findings.append(
                             Finding(
                                 kind="flag_private",

src/adcp/testing/decisioning.py

@@ -25,6 +25,7 @@
 
 from __future__ import annotations
 
+import warnings
 from contextlib import asynccontextmanager
 from typing import TYPE_CHECKING, Any, Literal
 from urllib.parse import urlparse
@@ -49,7 +50,12 @@
     )
     from adcp.server.auth import BearerTokenAuth
     from adcp.server.helpers import ResponseEnhancer
-    from adcp.server.serve import ASGIMiddlewareEntry, ContextFactory, SkillMiddleware
+    from adcp.server.serve import (
+        ASGIMiddlewareEntry,
+        ContextFactory,
+        LifespanHook,
+        SkillMiddleware,
+    )
     from adcp.server.spec_compat import PreValidationHooks
 
 
@@ -148,12 +154,17 @@ def build_asgi_app(
     context_factory: ContextFactory | None = None,
     middleware: Sequence[SkillMiddleware] | None = None,
     streaming_responses: bool = False,
+    stateless_http: bool = False,
+    session_idle_timeout: float | None = 1800.0,
+    max_active_sessions: int | None = None,
     enable_dns_rebinding_protection: bool | None = None,
     max_request_size: int | None = None,
     validation: ValidationHookConfig | None = DEFAULT_VALIDATION,
     discovery_base_url: str | None = None,
     pre_validation_hooks: PreValidationHooks | None = None,
     response_enhancer: ResponseEnhancer | None = None,
+    on_startup: Sequence[LifespanHook] | None = None,
+    on_shutdown: Sequence[LifespanHook] | None = None,
     **factory_kwargs: Any,
 ) -> Any:
     """Build a Starlette ASGI app for in-process integration tests.
@@ -219,6 +230,15 @@ def build_asgi_app(
         every tool dispatch. Forwarded to :func:`create_mcp_server`.
     :param streaming_responses: Forwarded to :func:`create_mcp_server`.
         Default ``False``.
+    :param stateless_http: Forwarded to :func:`create_mcp_server` for
+        ``transport="mcp"`` and to the production composition path for
+        ``transport="both"``. Ignored by ``transport="a2a"``.
+    :param session_idle_timeout: Idle reap deadline for stateful MCP
+        sessions. Defaults to 1800 seconds. Forwarded for ``"mcp"`` and
+        ``"both"``; ignored by ``"a2a"``.
+    :param max_active_sessions: Optional cap for active stateful MCP
+        sessions. Forwarded for ``"mcp"`` and ``"both"``; ignored by
+        ``"a2a"``.
     :param enable_dns_rebinding_protection: Forwarded to
         :func:`create_mcp_server`. ``None`` → FastMCP default.
     :param max_request_size: Request body size cap in bytes. ``None`` →
@@ -244,6 +264,10 @@ def build_asgi_app(
         :func:`create_mcp_server`, so in-process tests exercise the same
         enhancer wiring your production :func:`serve` call uses. ``None``
         → no enhancer (default).
+    :param on_startup: Async zero-argument hooks run after the MCP and A2A
+        framework lifespans start. Requires ``transport="both"``.
+    :param on_shutdown: Async zero-argument hooks run before the MCP and A2A
+        framework lifespans stop. Requires ``transport="both"``.
     :param factory_kwargs: Forwarded to
         :func:`create_adcp_server_from_platform`. Accepted keys:
         ``executor``, ``registry``, ``webhook_sender``,
@@ -257,6 +281,27 @@ def build_asgi_app(
     """
     if transport not in ("mcp", "a2a", "both"):
         raise ValueError(f"Unsupported transport {transport!r}; expected 'mcp', 'a2a', or 'both'.")
+    if (on_startup or on_shutdown) and transport != "both":
+        raise ValueError(
+            "on_startup / on_shutdown hooks require transport='both', "
+            f"got transport={transport!r}."
+        )
+    if transport == "a2a":
+        ignored_session_settings = []
+        if stateless_http:
+            ignored_session_settings.append("stateless_http")
+        if session_idle_timeout != 1800.0:
+            ignored_session_settings.append("session_idle_timeout")
+        if max_active_sessions is not None:
+            ignored_session_settings.append("max_active_sessions")
+        if ignored_session_settings:
+            warnings.warn(
+                "build_asgi_app sets MCP-only session fields "
+                f"{sorted(ignored_session_settings)} but transport='a2a'. "
+                "These fields will be ignored.",
+                UserWarning,
+                stacklevel=2,
+            )
 
     from adcp.decisioning.serve import create_adcp_server_from_platform
     from adcp.server.serve import (
@@ -291,6 +336,9 @@ def build_asgi_app(
             advertise_all=advertise_all,
             max_request_size=max_request_size,
             streaming_responses=streaming_responses,
+            stateless_http=stateless_http,
+            session_idle_timeout=session_idle_timeout,
+            max_active_sessions=max_active_sessions,
             validation=validation,
             pre_validation_hooks=pre_validation_hooks,
             response_enhancer=response_enhancer,
@@ -299,6 +347,8 @@ def build_asgi_app(
             allowed_origins=allowed_origins,
             enable_dns_rebinding_protection=enable_dns_rebinding_protection,
             auth=auth,
+            on_startup=on_startup,
+            on_shutdown=on_shutdown,
             include_discovery=discovery_base_url is not None,
         )
         return _apply_asgi_middleware(app, asgi_middleware)
@@ -331,6 +381,9 @@ def build_asgi_app(
         context_factory=context_factory,
         middleware=middleware,
         streaming_responses=streaming_responses,
+        stateless_http=stateless_http,
+        session_idle_timeout=session_idle_timeout,
+        max_active_sessions=max_active_sessions,
         enable_dns_rebinding_protection=enable_dns_rebinding_protection,
         validation=validation,
         pre_validation_hooks=pre_validation_hooks,
@@ -373,12 +426,17 @@ async def build_test_client(
     context_factory: ContextFactory | None = None,
     middleware: Sequence[SkillMiddleware] | None = None,
     streaming_responses: bool = False,
+    stateless_http: bool = False,
+    session_idle_timeout: float | None = 1800.0,
+    max_active_sessions: int | None = None,
     enable_dns_rebinding_protection: bool | None = None,
     max_request_size: int | None = None,
     validation: ValidationHookConfig | None = DEFAULT_VALIDATION,
     discovery_base_url: str | None = None,
     pre_validation_hooks: PreValidationHooks | None = None,
     response_enhancer: ResponseEnhancer | None = None,
+    on_startup: Sequence[LifespanHook] | None = None,
+    on_shutdown: Sequence[LifespanHook] | None = None,
     **factory_kwargs: Any,
 ) -> AsyncIterator[httpx.AsyncClient]:
     """Async context manager yielding an ``httpx.AsyncClient`` wired against
@@ -427,6 +485,9 @@ async def build_test_client(
     :param context_factory: Forwarded to :func:`build_asgi_app`.
     :param middleware: Forwarded to :func:`build_asgi_app`.
     :param streaming_responses: Forwarded to :func:`build_asgi_app`.
+    :param stateless_http: Forwarded to :func:`build_asgi_app`.
+    :param session_idle_timeout: Forwarded to :func:`build_asgi_app`.
+    :param max_active_sessions: Forwarded to :func:`build_asgi_app`.
     :param enable_dns_rebinding_protection: Forwarded to
         :func:`build_asgi_app`.
     :param max_request_size: Forwarded to :func:`build_asgi_app`.
@@ -442,6 +503,10 @@ async def build_test_client(
     :param response_enhancer: Forwarded to :func:`build_asgi_app`. Wire
         the same enhancer your production :func:`serve` call uses so
         in-process tests exercise the enhancer path.
+    :param on_startup: Forwarded to :func:`build_asgi_app`. Requires
+        ``transport="both"``.
+    :param on_shutdown: Forwarded to :func:`build_asgi_app`. Requires
+        ``transport="both"``.
     :param factory_kwargs: Forwarded to
         :func:`create_adcp_server_from_platform` via :func:`build_asgi_app`
         (executor, registry, webhook_sender, etc.).
@@ -492,12 +557,17 @@ async def build_test_client(
         context_factory=context_factory,
         middleware=middleware,
         streaming_responses=streaming_responses,
+        stateless_http=stateless_http,
+        session_idle_timeout=session_idle_timeout,
+        max_active_sessions=max_active_sessions,
         enable_dns_rebinding_protection=enable_dns_rebinding_protection,
         max_request_size=max_request_size,
         validation=validation,
         discovery_base_url=discovery_base_url,
         pre_validation_hooks=pre_validation_hooks,
         response_enhancer=response_enhancer,
+        on_startup=on_startup,
+        on_shutdown=on_shutdown,
         **factory_kwargs,
     )
     async with LifespanManager(app):

src/adcp/types/__init__.py

@@ -716,6 +716,7 @@
     "UpdateContentStandardsSuccessResponse",
     "UpdateMediaBuyErrorResponse",
     "LegacyUpdateMediaBuyErrorResponse",
+    "LegacyUpdateMediaBuySuccessResponse",
     "UpdateMediaBuyResponse1",
     "UpdateMediaBuyResponse3",
     "UpdateMediaBuyPackagesRequest",
@@ -845,6 +846,8 @@
     "SignalCoverageForecast",
     "SignalCoverageRange",
     "MissingMetric",
+    "PropertyIdentifier",
+    "ProductFilterCountry",
     # Cross-module name collision aliases (#911, Step 2)
     # Creative
     "DeliveryCreative",
@@ -1456,6 +1459,7 @@ def __dir__() -> list[str]:
         LegacySyncCreativesRequest,
         LegacyUpdateMediaBuyErrorResponse,
         LegacyUpdateMediaBuyRequest,
+        LegacyUpdateMediaBuySuccessResponse,
         ListAccountsRequest,
         ListAccountsResponse,
         ListCollectionListsRequest,
@@ -1567,13 +1571,15 @@ def __dir__() -> list[str]:
         ProductCard,
         ProductCardDetailed,
         ProductCatalog,
+        ProductFilterCountry,
         ProductFilters,
         ProductFormatDeclaration,
         ProductFormatSellerPreference,
         ProductSignalTargetingOption,
         Property,
         PropertyId,
         PropertyIdActivationKey,
+        PropertyIdentifier,
         PropertyIdentifierTypes,
         PropertyList,
         PropertyListChangedWebhook,

src/adcp/types/_eager.py

@@ -599,6 +599,7 @@
     JavascriptFormatGroupAsset,
     KeyValueActivationKey,
     LegacyUpdateMediaBuyErrorResponse,
+    LegacyUpdateMediaBuySuccessResponse,
     ListContentStandardsErrorResponse,
     ListContentStandardsResponse1,
     ListContentStandardsSuccessResponse,
@@ -628,8 +629,10 @@
     PreviewRenderingOrigin,
     PricingOption,
     ProductAllocation,
+    ProductFilterCountry,
     ProductFormatSellerPreference,
     PropertyId,
+    PropertyIdentifier,
     PropertyTag,
     Provenance,
     ProvenanceDeclaredBy,
@@ -1681,6 +1684,7 @@ def __init__(self, *args: object, **kwargs: object) -> None:
     "UpdateFrequency",
     "UpdateMediaBuyErrorResponse",
     "LegacyUpdateMediaBuyErrorResponse",
+    "LegacyUpdateMediaBuySuccessResponse",
     "UpdateMediaBuyPackagesRequest",
     "UpdateMediaBuyPropertiesRequest",
     "UpdateMediaBuyRequest",
@@ -1763,6 +1767,8 @@ def __init__(self, *args: object, **kwargs: object) -> None:
     "PercentOfMediaVendorPricingOption",
     "PerUnitVendorPricingOption",
     "ProductAllocation",
+    "ProductFilterCountry",
+    "PropertyIdentifier",
     "SignalCoverageForecast",
     "SignalCoverageRange",
     "TrustedMatch",

src/adcp/types/aliases.py

@@ -2039,6 +2039,12 @@ class UnknownGroupAsset(_BaseGroupAsset):
 from adcp.types.generated_poc.core.overlay import (
     Unit as OverlayUnit,
 )
+from adcp.types.generated_poc.core.product_filters import (
+    Country as ProductFilterCountry,
+)
+from adcp.types.generated_poc.core.property import (
+    Identifier as PropertyIdentifier,
+)
 from adcp.types.generated_poc.core.provenance import (
     DeclaredBy as ProvenanceDeclaredBy,
 )
@@ -2099,6 +2105,9 @@ class UnknownGroupAsset(_BaseGroupAsset):
 from adcp.types.generated_poc.media_buy.sync_event_sources_response import (
     Setup as SyncEventSourcesSetup,
 )
+from adcp.types.generated_poc.media_buy.update_media_buy_response import (
+    UpdateMediaBuyResponse1 as LegacyUpdateMediaBuySuccessResponse,
+)
 from adcp.types.generated_poc.protocol.get_adcp_capabilities_response import (
     Account as CapabilitiesAccount,
 )
@@ -2266,6 +2275,8 @@ class UnknownGroupAsset(_BaseGroupAsset):
     "SignalCoverageForecast",
     "SignalCoverageRange",
     "MissingMetric",
+    "PropertyIdentifier",
+    "ProductFilterCountry",
     # Canonical-formats v2 surface (AdCP 3.1)
     "CanonicalAssetSource",
     "CanonicalCompositionModel",
@@ -2435,6 +2446,7 @@ class UnknownGroupAsset(_BaseGroupAsset):
     "UpdateMediaBuySuccessResponse",
     "UpdateMediaBuyErrorResponse",
     "LegacyUpdateMediaBuyErrorResponse",
+    "LegacyUpdateMediaBuySuccessResponse",
     "UpdateMediaBuyResponse3",
     "UpdateMediaBuySubmittedResponse",
     # Validate content delivery responses