You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.293,
ImprovementsSection of the release
What
MCP (the Model Context Protocol) is how Claude Code connects to outside tools and services. Claude Code now has an error code, mcp_call_unanswered, for a call to one of those tools that got no answer. The message that goes with it tells Claude that the call:
may have finished
may still be running
may never have started
It then tells Claude to check what the call did before it repeats it.
Why
Some actions should not happen twice, such as sending a message or creating a record. Telling Claude to check first makes it less likely to repeat an action that may already have taken place.
