You'll notice
Useful4 Signal3
Resume now tells you when the conversation is already open in another running session.
What's wrong with this entry?
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What
If you try to resume a conversation that another process already holds, Claude Code now checks every holder rather than one, prefers an interactive one, and shows a message naming that case: the conversation is already open in another running Claude session, so use that one or close it. Failures also return an explicit resume_session_live_elsewhere code.
Details
- The conflict telemetry event gained a
holder_kindfield. - Non-interactive holders still get the generic message.
Evidence
This conversation is already open in another running Claude session \u2014 use that one, or close it and try again
Strings lifted out of the shipped bundle, so the claim above can be checked against them.