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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.290 ·

/code-review medium now runs the high-effort recipe on most models

On every model without its own /code-review row, Opus 5.5 included, medium now runs the eight-angle high recipe instead of a single pass. high, xhigh and Opus 5 are unchanged.

You'll notice Improvements
JSON All of v2.1.290
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Code ReviewArea: what it touches
ImprovementsKind: in v2.1.290,
ImprovementsSection of the release

What

/code-review (alias /review) picks a review recipe from a table keyed by model and effort level. Only claude-opus-5, claude-opus-4-8 and claude-sonnet-5 have their own row; every other model, Opus 5.5 included, reads the default row. In that row medium moved from the o5-bmin recipe to o48-high-v1, so it now runs the same recipe as high.

Details

  • o5-bmin, the old medium: one careful pass over the diff, up to 15 findings.
  • o48-high-v1, the new medium: eight finder angles run in the same context (line-by-line scan, removed behaviour, cross-file callers, cleanup, altitude, conventions), up to 6 candidates each, deduplicated with no verify step and biased toward recall, up to 10 findings unless --max-findings sets another limit.
  • low, high, xhigh and max are unchanged in the default row; high was already o48-high-v1 in 2.1.289.
  • The claude-opus-5 row still maps medium and high to o5-bmin. The Opus 4.8 and Sonnet 5 rows did not change.
  • This is not the session's /effort setting, and the model's reasoning effort does not change: both recipes pass the level you typed through as the effort.

Why

On Opus 5.5 or any other model without its own row, /code-review medium is now a longer review that surfaces more uncertain findings than it did in 2.1.289, and its default cap drops from 15 findings to 10.

Evidence

medium: { ...H("o48-high-v1"), measuredExternal: !0 }

Read from
Names in the bundle/code-review
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.

Confirmed since Anthropic's documentation has since written up /code-review, on Find bugs with ultrareview. PR mode needs a repository on `github.com`. For a repository on a [GitHub Enterprise Server](/docs/en/github-enterprise-server) instance, run `/code-review ultra` without a PR number to review your local branch instead. ultrareview see the edit
What has happened since
Corrected by hand The operator corrected this entry by hand after it was published.

See this across every release →

How sure we are
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up /code-review, on Find bugs with ultrareview.
Anthropic's release notes agreeChanged /code-review at medium effort to also report cleanup and CLAUDE.md conventions findings on models without tuned review settings…

See this entry in the whole of v2.1.290 →

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