Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Agent TeamsArea: what it touches
Bug FixesKind: in v2.1.323,
Bug FixesSection of the release
What
Agents working together in Claude Code can send each other messages with the SendMessage tool, including a request for another agent to shut down. When the reply to a shutdown request was anything other than success, Claude Code used to record it as a failed write to the agent's mailbox. A refused shutdown is now recorded as a refusal instead.
Agents that are resumed, or that are still running, now also receive script markers.
Why
The usage data Claude Code records about agent messaging is more accurate: a refusal is no longer counted as a delivery failure.
