ruby-sdk/lib/mcp/client
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Filename Latest commit message Latest commit date
Ates Goral 07226b7cf1 Track Mcp-Session-Id and protocol version in HTTP client
Per the Streamable HTTP spec, if the server returns an Mcp-Session-Id
header during `initialize`, the client MUST include it on subsequent
requests. Capture the session ID and protocol version from the
`initialize` response and attach them automatically on subsequent
POSTs.

Per the Protocol Version Header section of the spec, the client MUST
also include `MCP-Protocol-Version` on all subsequent requests so the
server can respond based on the negotiated protocol version.

Map 404 responses to a new `SessionExpiredError` (a subclass of
`RequestHandlerError` for backward compatibility) and clear local
session state so callers can start a fresh session with a new
`initialize` request, as required by the spec.

- https://modelcontextprotocol.io/specification/2025-11-25/basic/transports#session-management
- https://modelcontextprotocol.io/specification/2025-11-25/basic/transports#protocol-version-header

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-20 00:23:07 -04:00
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http.rb Track Mcp-Session-Id and protocol version in HTTP client 2026-04-20 00:23:07 -04:00
paginated_result.rb Support pagination per MCP specification 2026-04-18 18:23:30 +09:00
stdio.rb Add MCP::Client::Stdio transport 2026-03-19 12:41:27 +09:00
tool.rb Add Tool output_schema support with comprehensive validation 2025-09-11 11:12:27 -04:00