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Title: Align stdio shutdown sequence with spec by davenpi · Pull Request #765 · modelcontextprotocol/python-sdk · GitHub

Open Graph Title: Align stdio shutdown sequence with spec by davenpi · Pull Request #765 · modelcontextprotocol/python-sdk

X Title: Align stdio shutdown sequence with spec by davenpi · Pull Request #765 · modelcontextprotocol/python-sdk

Description: Align the stdio shutdown sequence with the MCP spec: close the server’s input, wait for exit, send SIGTERM if needed, and SIGKILL as a last resort. Motivation and Context The MCP spec recommends a careful shutdown sequence for stdio transport to avoid leaving orphaned or stuck server processes. This change follows those steps, making shutdowns more reliable and predictable. How Has This Been Tested? All tests pass (except one unrelated skipped test). Breaking Changes None Types of changes Bug fix (non-breaking change which fixes an issue) New feature (non-breaking change which adds functionality) Breaking change (fix or feature that would cause existing functionality to change) Documentation update Checklist I have read the MCP Documentation My code follows the repository's style guidelines New and existing tests pass locally I have added appropriate error handling I have added or updated documentation as needed Additional context None

Open Graph Description: Align the stdio shutdown sequence with the MCP spec: close the server’s input, wait for exit, send SIGTERM if needed, and SIGKILL as a last resort. Motivation and Context The MCP spec recommends a ...

X Description: Align the stdio shutdown sequence with the MCP spec: close the server’s input, wait for exit, send SIGTERM if needed, and SIGKILL as a last resort. Motivation and Context The MCP spec recommends a ...

Opengraph URL: https://github.com/modelcontextprotocol/python-sdk/pull/765

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b997748 fix: align stdio shutdown sequence with spec. davenpi May 21, 2025 https://github.com/modelcontextprotocol/python-sdk/pull/765/commits/b997748e31c9222604613c54fbe99b832d928084
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