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Stop answering cancelled requests (#3188)

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Max 2026-07-27 23:26:00 +01:00 • committed by GitHub
commit 923341c98a
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1 changed files with 464 additions and 204 deletions
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4
src/mcp/shared/message.py
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@ -41,6 +41,10 @@ class ServerMessageMetadata:
close_sse_stream: CloseSSEStreamCallback | None = None
# Callback to close the standalone GET SSE stream (for unsolicited notifications)
close_standalone_sse_stream: CloseSSEStreamCallback | None = None
# Callback the dispatcher runs when this request settles without a response
# (e.g. it was cancelled), for a transport whose wire must still end the
# request even though no response is written.
on_request_unanswered: Callable[[], Awaitable[None]] | None = None
MessageMetadata = ClientMessageMetadata | ServerMessageMetadata | None