Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.315,
Internal ChangesSection of the release
Unclear It is not stated which environments relied on the removed check and are no longer treated as coworker mode.
What
Claude Code decides whether it is running as a coworker or local agent by looking at how it was started, read from CLAUDE_CODE_ENTRYPOINT. It counts as one when that value is local-agent or begins with claude-coworker. One additional check that used to make it count as a coworker has been removed.
Why
Some environments that used to be treated as coworker mode no longer are.