/review

Runs a quick, read-only single-pass review of a GitHub pull request by number.

Without an argument, a picker of open PRs appears; text after the number is an additional instruction. v2.1.186-v2.1.201 ran /review with the multi-agent engine of '/code-review medium'. Multi-agent with effort: '/code-review <level> <pr#>'; cloud: '/code-review ultra'.

✅ WHEN TO USE IT?

Quick first look at a PR

Use /review 482 to quickly check before merging whether the pull request has any obvious problems, without picking an effort level.

Pick a PR from a list to check

Call /review with no number to choose one from the list of open PRs for a quick pass.

⛔ WHEN NOT TO?

Thorough review of a critical PR

Per the docs, /review is a quick, read-only single pass — not a multi-agent review with selectable effort.

Better: Use /code-review <level> <pr#> for a multi-agent review with an effort level, or /code-review ultra for a deep cloud review.

Pure cleanup without bug hunting

/review looks for problems in the PR; it isn't built for cleanup-only passes.

Better: Use /simplify for reuse/simplification/efficiency without bug hunting.

SOURCES

Claude Code Doku (offiziell) ↗ code.claude.com