You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
What
MCP (Model Context Protocol) is the way Claude Code connects to outside tools and services. In the list that shows the status of each MCP server, a server's row can now include a "left out" detail with a count of how many of its tools were left out.
Separately, a program controlling Claude Code can ask it to call an MCP tool directly. In a cloud session, meaning one running on Anthropic's machines rather than yours, that request is now rejected when the tool lives on your own computer or in your browser.
Why
You can now see when some of an MCP server's tools were dropped instead of wondering why they are missing.
