MCP tools list occasionally blanks mid-session after a transient refresh error (v2.1.214 area)

Status Open
Maintainer reply None cached
Activity 1 comment · opened Aug 18, 2026

We run a production MCP server (Salesforce integration) used by real end users. Multiple users have reported the tools list going empty mid-session or shortly after connecting/reconnecting, requiring a manual reconnect to recover.

We've confirmed server-side this isn't caused by our server: tools/list never calls an external API on our end, only a fast local read, and our production logs show clean, fast, successful responses for every tools/list call around the times users report this happening.

The v2.1.214 release notes mention a related fix: a transient refresh error was replacing the tools/prompts/resources list with an empty one instead of preserving prior state. We believe this is still happening, or a similar case remains.

Related prior reports, none an exact match: #33779, #60538, #27142, #53125 (closed as not planned or consolidated elsewhere).

This is a report from real-world usage, not a minimal repro - happy to share more log detail if useful. Would appreciate knowing if this is still tracked, or if there's a recommended mitigation beyond telling users to reconnect.

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