You'll noticeTier: how much it should matter to you
4Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SDKArea: what it touches
New FeaturesKind: in v2.1.311,
What probably matters to youSection of the release
What
The SDK lets other programs run Claude Code and read its results. Its list of API error types has two new values. Both are about cloud sessions whose process restarts with nobody watching:
unattended_start_limit: a restarted cloud session refuses to carry on with unfinished work. This happens once it reaches the configured number of unattended starts in 24 hours. No request is sent.
unattended_start_unconfirmed: Claude Code could not read or write the record of those starts. This error does not end the session.
Before this change, the list ended at empty_completion.
Why
Programs that react to specific error types will now see these two values. They should know there is now a cap on how often a cloud session can resume work by itself.
