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Refresh #24 (MCP 2026 wire alignment): body is partly outdated and has no implementation: Issue #78 - #91
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Summary
Addresses (#78), which updates the requirements for (#24) to align the SDK's wire behavior with the MCP 2026 protocol.
Changes
-32601(METHOD_NOT_FOUND) forpingrequests inautoandmodernprotocol modes while preserving legacy behavior.MISSING_REQUIRED_CLIENT_CAPABILITYwith error code-32021.-32021when a tool is invoked as a task but task support is unavailable for the active protocol version.io.modelcontextprotocol/serverInfoto the_metafield ofserver/discoverresponses.resultType: "complete".tests/test_mcp26_wire.pyto cover the updated wire behavior.Tests
Added:
tests/test_mcp26_wire.pypingbehavior.Verification
tests/test_mcp26_wire.py— 11 passed .tests/test_transport_http.pyandtests/test_lifecycle_http.py— 11 passed in an run.Note: Re-run the tests after rebasing onto
upstream/developto confirm the final results.Related Issues