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 v2.1.323,
ImprovementsSection of the release
What
MCP servers are add-ons that give Claude extra tools, and some of their tools start a task that keeps running in the background. If the data Claude Code needs to keep following that task is too large or too deeply nested to pass on, the call now fails with an error saying the task is being cancelled and nothing more of it will arrive.
Why
This is a new way an MCP background task can end: instead of continuing out of reach, it is stopped and the call reports an error.
