Prevent MCP stdio startup diagnostics from polluting JSON-RPC stdout#26921

Merged

pelikhan merged 12 commits intomainfrom

copilot/fix-mcp-server-stdout-diagnostics

Apr 17, 2026

Commits on Apr 17, 2026

Initial plan
Copilot
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test: add integration coverage for mcp-server stdio stream cleanliness

Copilot
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pelikhan
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test: harden mcp stdio integration test execution

Copilot
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pelikhan
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test: keep stderr validation while avoiding stdio hang risk

Copilot
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pelikhan
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fix: silence stdio diagnostics for mcp-server startup

Copilot
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pelikhan
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docs: clarify diagnostic output behavior in mcp helpers

Copilot
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pelikhan
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test: finalize stdio stream-safety adjustments

Copilot
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pelikhan
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docs: clarify stdio diagnostic suppression semantics

Copilot
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pelikhan
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docs: document diagnostic stream behavior for mcp modes

Copilot
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pelikhan
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refactor: use logger for mcp startup diagnostics

Copilot
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pelikhan
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docs: clarify logger-only diagnostics in mcp helpers

Copilot
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pelikhan
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Merge branch 'main' into copilot/fix-mcp-server-stdout-diagnostics
pelikhan
authored