You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.282,
ImprovementsSection of the release
What
When a request to the model fails, Claude Code records a request id, a label that identifies that exact request, in its logs and error reports. It used to take this id only from the error itself. When the error has none, it now falls back to the x-amzn-requestid header in the response, which Amazon-hosted endpoints send.
Why
Errors from those endpoints can now carry a request id. That makes a failure easier to match up with AWS support.