You'll notice
Device registration on Mac now reports a clear error when there's no login keychain to store a device key
What
When Claude Code tries to register (bind) a device and the Mac user account has no login keychain available to store a device key in, it now surfaces this as its own distinct failure reason, no_keychain, with a specific user-facing message explaining the problem. Separately, untrusted-device errors gained a new sub-reason, bound_unattested.
Why
This gives a clearer, more specific error message when device binding fails because of a missing keychain, instead of a generic or confusing failure.