shin-bot-litellmandGitHub 923b1cfd92 fix: MCP "Session not found" error on VSCode reconnect (#20298) ...

* fix: strip stale mcp-session-id header to prevent 'Session not found' error loop

When VSCode reconnects to LiteLLM's MCP endpoint after a reload, it sends
a stale mcp-session-id header. The session was already cleaned up, causing
a 404 'Session not found' error. VSCode retries with the same stale ID,
creating an infinite error loop.

Before forwarding requests to the StreamableHTTP session manager, check if
the mcp-session-id header references a valid session. If the session doesn't
exist, strip the header so a new session is created automatically.

Fixes #20292

* refactor: extract stale session handling into _strip_stale_mcp_session_header helper

2026-02-02 14:15:31 -08:00

..

mcp_server

fix: MCP "Session not found" error on VSCode reconnect (#20298)

2026-02-02 14:15:31 -08:00