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Python: Filter caller options in hosting-responses README example #9360

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Merged
Eduard van Valkenburg (eavanvalkenburg) merged 1 commit into from
Oct 14, 2026
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Python: Filter caller options in hosting-responses README example #9360

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6 changes: 5 additions & 1 deletion python/packages/hosting-responses/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -51,17 +51,21 @@ from fastapi.responses import JSONResponse
app = FastAPI()
state = AgentState(agent)

# Request options are caller-controlled; pass through only the ones this route honors.
ALLOWED_REQUEST_OPTIONS = frozenset({"max_tokens", "reasoning"})


@app.post("/responses")
async def responses(body: dict = Body(...)) -> JSONResponse:
run = responses_to_run(body)
session_id, is_conversation_id = responses_session_id(body)
response_id = create_response_id()
session = await state.get_or_create_session(session_id or response_id)
options = {key: value for key, value in run["options"].items() if key in ALLOWED_REQUEST_OPTIONS}
result = await (await state.get_target()).run(
run["messages"],
session=session,
options=run["options"],
options=options,
)
if is_conversation_id:
# The app must serialize writers that advance this stable id.
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