Cannot reconnect stdio MCP servers

“It shows "Connected · 25 tools" with no Reconnect or Restart action.”

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/21341/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

Desktop app sessions cannot reconnect stdio MCP servers. Connected servers show no Reconnect action in /mcp, and a respawned server keeps listing its old tools.

Is this your bug?

File my report

Where: Desktop app
Error text: Reconnect, enable, and disable aren't available in this session.
Versions: 2.1.308 to 2.1.317
Platforms: Linux, macOS
How bad: Breaks a normal workflow.

Not quite your bug?

HTTP MCP server never reconnects3 people
MCP server removed mid-session5 people
Project MCP servers dropped9 people

Original reports2, newest first

Nov 7, 2026Desktop app Code sessions still can't reconnect MCP servers (#54136 closed as completed, but the gap remains)#108202
Oct 25, 2026Desktop app: no way to reconnect a connected stdio MCP server, and a respawned server keeps its stale tool list#105049

Cannot reconnect stdio MCP servers

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

Is this your bug?

Not quite your bug?

Original reports2, newest first

Do you work on Claude Code?