3 people reported

All time, since Sep 25, including 1 thumbs-up on GitHub.

Stdio MCP tools/list times out

“tools/list and resources/list time out after exactly 30s.”

Is this your bug? What gets counted gets fixed. Pile on.

Paste this into your agent. It files your report, with your error and version.

I hit this bug: rapsheet.dev/sheets/claude-code/issues/1442/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

Stdio MCP server tools/list times out after 2026-07-28 negotiation. Affects mcp-grafana over stdio; Claude Code records protocol 2026-07-28 even when initialize returns 2025-11-25, so no tools load.

Is this your bug?

File my report
Where
MCP servers
Error text
Failed to fetch tools: Request timed out
Versions
2.1.220 to 2.1.283
Platforms
macOS
How bad
Breaks a normal workflow.

Not quite your bug?

  1. MCP tools/list rejected, zero tools7 people

Original reports2, newest first

  1. MCP: a -32601 reply to the server/discover probe puts a 2025-11-25 stdio server on protocol 2026-07-28, then tools/list times out#97391
  2. MCP stdio server lists no tools since protocol 2026-07-28 is negotiated (tools/list times out, mcp-grafana)#97189

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