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fix: allow null id in JSONRPCError per JSON-RPC 2.0 spec (#2056)

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Max Isbey 2026-02-17 10:30:34 +00:00 • committed by GitHub
commit 705497a593
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1 changed files with 151 additions and 24 deletions
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2
src/mcp/server/stdio.py
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@ -71,7 +71,7 @@ async def stdio_server(stdin: anyio.AsyncFile[str] | None = None, stdout: anyio.
try:
async with write_stream_reader:
async for session_message in write_stream_reader:
json = session_message.message.model_dump_json(by_alias=True, exclude_none=True)
json = session_message.message.model_dump_json(by_alias=True, exclude_unset=True)
await stdout.write(json + "\n")
await stdout.flush()
except anyio.ClosedResourceError: # pragma: no cover