Allow ping requests before initialization #1312
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dsp-ant
approved these changes
Sep 1, 2025
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Fix #1311
Allow the MCP server to respond the ping requests even if initialization hasn't happened yet, as per the spec.
Motivation and Context
The MCP specification states that pings should be allowed before initialization, but this SDK doesn't permit them and fail the request.
How Has This Been Tested?
Unit tests were added.
This was tested with a sample MCP server and client, ensuring that the client is allowed to first send a ping request and subsequently send an initialize request.
Breaking Changes
No breaking changs.
Types of changes
Checklist
Additional context