E1403. Rate limit exceeded
Severity: ERROR. Fail-closed on the hook enforcement path.
What happened
The hosted backend rate-limited this client (HTTP 429 with a
Retry-After header). The SDK does not retry automatically, and
hook enforcement fails closed: the guarded tool call is denied
rather than allowed through ungoverned.
How to fix
Wait for the Retry-After window (60s by default) and retry. If
you see this consistently, your usage may have crossed your
tier's limit. Check the dashboard's Usage page.