Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SandboxArea: what it touches
Internal ChangesKind: in v2.1.302,
Internal ChangesSection of the release
What
The sandbox is the fenced-off area that limits which files and network access commands can reach. When Claude Code fails to apply new sandbox settings, it now reports the failure with the label configNotInstalled. It used to pass the error on unlabelled. The sandbox warnings about blocked file reads now also go through Claude Code's standard message system.
Why
A sandbox failure is now identified by its kind, so it can be told apart from other errors.
