You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
WorkflowsArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
What
Agents are helpers Claude can start to work on part of a task, and workflows run several of them. Claude Code now records when one of them was refused:
A turn result, the record made when Claude finishes responding, now carries refusedAgentNote.
A workflow's completion message now includes refusedAgentNote, unless script content is held back from SDK events (the messages sent to programs that embed Claude Code).
A new failedMcpCallCount field counts failed calls to MCP servers (outside services that give Claude extra tools) and is added to the stats record when above 0.
Workflows also start a second repeating timer, cleared when they finish.
Why
In practice, information about a refused agent now travels with the results, so Claude can be told that part of the work did not run.