Summary
The server does not inspect the client's protocolVersion during initialize. Per MCP spec, the server returns its version and the client decides whether to disconnect — but a mismatch should be logged for debugging.
Details
- Fix: log a warning to stderr when the client's protocol version differs from the server's. No handshake behavior change.
- Gate: E2E test verifies
initialize succeeds with a mismatched version.
Summary
The server does not inspect the client's
protocolVersionduringinitialize. Per MCP spec, the server returns its version and the client decides whether to disconnect — but a mismatch should be logged for debugging.Details
initializesucceeds with a mismatched version.