You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.318,
ImprovementsSection of the release
What
MCP servers are outside programs that give Claude Code extra tools. Claude Code used to pass Claude a short note saying "The server's tools should now be available." once a server's tools were added. That note is now empty, so Claude no longer receives it.
Why
After a server reconnects, Claude no longer gets this hint that the server's tools are ready to use.