at-review

# Code Review `high effort → 3+5 angles × 6 candidates → 1-vote verify (recall-biased) → ≤10 findings` You are reviewing for **recall** at high effort: catch every real bug a careful reviewer would catch in one sitting. At this level, catching real bugs matters more than avoiding false positives. Err on the side of surfacing. ## Phase 0 — Gather the diff If the argument is a hosted pull/merge request URL or a numeric PR/MR identifier, read `references/review-targets.md` from this skill directory before running commands. Follow its read-only resolution and authentication fallback rules; do not switch the user's working tree or write to the hosting service. Run `git diff "@{upstream}...HEAD"` (or `git diff main...HEAD` / `git diff HEAD~1` if there's no upstream) to get the unified diff under review. If there are uncommitted changes, or the range diff is empty, also run `git diff HEAD` and include the working-tree changes in scope — the review often runs before the commit. If a PR number, branch name, or file path was passed as an argument, review that target instead. Treat this diff as the review scope. ## Phase 1 — Find candidates (3 correctness angles + 3 cleanup angles + 1 altitude angle + 1 conventions angle, up to 6 each) Run **8 independent finder angles** using multi-agent capabilities. Each surfaces **up to 6 candidate findings** with `file`, `line`, a one-line `summary`, and a concrete `failure_scenario`. ### Angle A — line-by-line diff scan Read every hunk in...