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/code-review

slash never mined documented JSON

A Claude Code slash command, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.

Skill. Review the current diff, or a PR number, branch, or path you pass, for correctness bugs. Depending on your model and effort level, the review also covers cleanup opportunities. Pass --fix to apply findings, --comment to post them on the GitHub PR or GitLab merge request, or ultra to run a deep cloud review. Posting to a GitLab merge request requires Claude Code v2.1.257 or later. With ultra on a github.com PR target, pass --post to preselect posting the finished findings to the PR in the launch dialog; --post requires Claude Code v2.1.227 or later. See Review a diff locally for the effort levels, targeting, and how it relates to /simplify. Alias: /review

Anthropic's own wording. Read off Commands, captured 2026-09-28.

First seen — never in a mined build
Last seen — never in a mined build
Builds0 / 149on this box, as of v2.1.308
Written about v2.1.178 first named in a changelog, 15 Jun 2026

In the changelogs

27

Releases whose published page names /code-review.

  1. 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.

    named in this entry, found in this entry's text

  2. v2.1.283
    /code-review ultra launch dialog ignores some accidental selections

    The /code-review ultra confirmation dialog now ignores selections that arrive during a refusal window, and branch reviews show an extra scope line

    found in this entry's text, named in this entry

  3. v2.1.282
    /code-review on a blocked repository now suggests a local review

    When a remote pull request review is refused for a repository, /code-review now suggests running the review locally instead

    found in this entry's text, named in this entry

  4. v2.1.280
    Cloud-review polling failure now behind a remote-config gate

    Handling of repeated 404s while polling a cloud /code-review session is now controlled by a gate, with clearer error messages

    found in this entry's text, named in this entry

  5. v2.1.280
    Cloud code-review failure guidance now varies by failure reason

    Failure messages for cloud /code-review runs now give tailored guidance based on the specific failure reason

    found in this entry's text, named in this entry

  6. v2.1.277
    /ultrareview can now review a first commit whole, with confirmation

    /ultrareview (now /code-review ultra) can review a repo's very first commit in full, with confirmation

    found in this entry's text, named in this entry

  7. v2.1.277
    Ultrareview launches from the SDK request path now flagged confirmsBeforeLaunch

    Ultrareview launches from Claude Code's SDK request path now skip certain confirmation-error and recovery-offer behavior

    found in this entry's text

  8. v2.1.277
    Ultrareview (/review-style remote precondition) now accepts a base commit, not just a branch name

    Remote ultra-review (/code-review ultra) now accepts a base commit, not just a branch name

    found in this entry's text, named in this entry

  9. v2.1.271
    /ultrareview startup tip now checks remaining review credits before showing

    The startup tip for /ultrareview now shows how many review credits are left

    found in this entry's text

  10. v2.1.269
    Claude Code can now post code-review findings as a PR comment (/code-review ultra)

    /code-review ultra --post now posts the review's findings directly as a GitHub PR comment

    found in this entry's text, named in this entry

  11. v2.1.242
    /code-review says when --post did nothing

    Using --post on a local /code-review now tells you it was ignored and points you to --comment.

    named in this entry, found in this entry's text

  12. v2.1.232
    Two review-workflow config flags dropped

    Two server-side switches that steered review behaviour are gone, so reviews no longer vary by remote config.

    found in this entry's text

  13. v2.1.232
    Code review no longer has a background workflow path

    /code-review always runs inline now; the scripted background review pipeline is gone.

    named in this entry, found in this entry's text

  14. v2.1.229
    Generated review workflow leaves inline comments

    The review workflow Claude scaffolds now posts inline comments on the diff.

    named in this entry, found in this entry's text

  15. v2.1.227
    /code-review ultra can post its findings to the pull request as you

    Ultra review adds --post and --no-post, so findings go to the PR as a comment from you.

    named in this entry, found in this entry's text

  16. v2.1.227
    Local reviews now tell you that --post did nothing

    Using --post on a local review now tells you to use --comment instead.

    found in this entry's text

  17. v2.1.227
    /code-review can post its findings as a comment on a GitHub pull request

    Code review findings can be posted straight back to your GitHub pull request as a comment.

    named in this entry, found in this entry's text

  18. v2.1.223
    Builtin /review command dropped; /code-review takes a target instead

    The /review command is gone; /code-review now takes a PR number, branch or path.

    named in this entry, found in this entry's text

  19. v2.1.223
    /code-review gains a /review alias and PR-aware help text

    You can type /review instead of /code-review, and pass a PR number as the target.

    named in this entry, found in this entry's text

  20. v2.1.223
    /code-review remembers the effort level you typed, and is hidden from the model by default

    /code-review reuses the last effort level you typed, and Claude can no longer run it unprompted.

    named in this entry, found in this entry's text

  21. v2.1.223
    Cloud review failure message points at plain /code-review

    A failed cloud review now points you at /code-review instead of a wrong command name.

    named in this entry, found in this entry's text

  22. v2.1.220
    Prompt text for /code-review, /simplify, skill-saving and credential paths is byte-identical

    Code review, simplify and skill-saving instructions are unchanged despite looking rewritten in the bundle.

    named in this entry, found in this entry's text

  23. v2.1.215
  24. v2.1.212
    Ultrareview Auto-Fetches Missing Branches

    found in this entry's text

  25. v2.1.203
    /code-review Tip Description Updated

    found in this entry's text

  26. v2.1.195
    Code Review Workflow Improved Verification

    found in this entry's text

  27. v2.1.178

First cited

4

The earliest release whose published evidence quoted /code-review was v2.1.203, 7 Jul 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.

ReleaseDateThe span that was quoted
v2.1.2037 Jul 2026/code-review checks your diff for correctness bugs
v2.1.2235 Aug 2026Review a GitHub pull request; for your working diff use /code-review
v2.1.2235 Aug 2026or use plain /code-review for a local review instead.
v2.1.28224 Sep 2026doesn't support pull requests in this repository. Run /code-review

Presence across releases

0

The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the slash command does. All slash commands.

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