You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SandboxArea: what it touches
Bug FixesKind: in v2.1.281,
Bug FixesSection of the release
What
The sandbox is the restricted environment Claude Code can run commands in. When building its configuration throws a config error during setup, Claude Code now records that with configBuildFailed. Any later setup attempt then stops straight away.
Why
A broken sandbox configuration is not retried again and again. Fix the configuration and restart, rather than expecting it to recover on its own.