feat: add server/discover with serverInfo in _meta per spec #3002 - #1
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feat: add server/discover with serverInfo in _meta per spec #3002#1Christian-Sidak wants to merge 1 commit into
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…extprotocol#3002 Add DiscoverResult type and server/discover handler aligned with the updated MCP specification (spec PR modelcontextprotocol#3002, merged 2026-07-16), which moves server identity out of a top-level serverInfo field and into the result's _meta under the io.modelcontextprotocol/serverInfo key. - types: add SERVER_INFO_META_KEY constant, DiscoverResult (no direct server_info field), and ServerDiscoverRequest; include both in the ClientRequest and ServerResult union types - Server: register a default server/discover handler that stamps server identity into the result _meta and returns supported protocol versions, capabilities, and instructions - ClientSession: add server_discover() helper method Fixes modelcontextprotocol#3144 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
Aligns the Python SDK with the updated MCP specification (spec PR modelcontextprotocol#3002, merged 2026-07-16), which moves server identity out of a top-level
serverInfofield inDiscoverResultand into the result_metaunder the keyio.modelcontextprotocol/serverInfo.types: addsSERVER_INFO_META_KEYconstant,DiscoverResult(no directserver_infofield -- identity is in_meta), andServerDiscoverRequest; includes both in theClientRequestandServerResultunion typesServer: registers a defaultserver/discoverhandler that stamps server identity into_metaand returns supported protocol versions, current capabilities, and instructionsClientSession: addsserver_discover()helper methodserver/discoverend-to-end; explicitly asserts thatserverInfois in_metaand not a top-level fieldFixes modelcontextprotocol#3144
Test plan
tests/server/lowlevel/test_server_discover.pywith 7 tests covering the full end-to-end flowserver_infois NOT a top-level field onDiscoverResultio.modelcontextprotocol/serverInfois present in_meta