Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
MCPArea: what it touches
Internal ChangesKind: in v2.1.323,
Internal ChangesSection of the release
What
MCP (Model Context Protocol) is the way Claude Code connects to tools from outside services. When such a tool is called remotely, the call can now carry a task that keeps running in the background. Claude Code issues a ticket so the chat can keep following that task. If it cannot get a handle or ticket for the task, it cancels the task. In that case it reports that it could not sign the proof that the chat needs to follow the task.
Why
This prepares remote tool calls to follow MCP tasks that take a long time to finish.