What
When a Claude Design request returns HTTP 401, the client now automatically attempts a token refresh and retries once before surfacing an error.
Details
- If the access token has a refresh token available, a single retry with the refreshed credential is attempted.
- Specific error messages depending on credential type: remote CCR sessions, OAuth token env vars, and interactive sessions each get tailored guidance.
- The new
DesignAuth401Errortype carries awasRetriedflag to prevent retry loops. - Token values are scrubbed from error messages and response data before surfacing to the user.
Evidence
Auto-refresh retry in Design client (search for "Claude Design authentication failed (HTTP 401)" and "DesignAuth401Error")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.