You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Code ReviewArea: what it touches
ImprovementsKind: in v2.1.280,
ImprovementsSection of the release
What
The failure message shown when a cloud /code-review run fails no longer always tells the user to retry /code-review ultra or fall back to local review. It now branches on the specific failure reason, such as session_archived, stopped_remotely, or session_not_found, only recommending the ultra/local retry for a subset of causes.
Whether a poll that repeatedly gets 404s is treated as session_not_found versus just a timeout is now controlled by a remote-config flag, tengu_breezy_diffie.
Why
This gives clearer, more accurate next steps when a cloud code review fails, instead of always pointing to the same generic retry advice regardless of the actual cause.
Read from
Names in the bundle/code-review ultra
Since it was published
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Added sinceA small documentation edit on Code Review touched a line naming /code-review ultra after this was published.Ultrareview requires authentication with a claude.ai account and is not available on Amazon Bedrock, Google Cloud's Agent Platform, or Microsoft Foundry, or to organizations with Zero Data Retention enabled or with the [HIPAA configuration…code-reviewsee the edit
Confirmed sinceAnthropic's documentation has since written up /code-review ultra, on Find bugs with ultrareview.`claude -p '/code-review ultra'` doesn't get you the findings, so use `claude ultrareview` in scripts. The `-p` run launches the cloud review and exits without waiting for it. When the review would bill usage credits, the `-p` run stops wi…ultrareviewsee the edit
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up /code-review ultra, on Find bugs with ultrareview.
