PR Review

Review current diff. Report regressions and correctness bugs plus cleanup (reuse / simplification / efficiency). Effort default medium; use Effort levels for depth, subagent fan-out, precision/recall bias.

Argument hint: [low|medium|high|xhigh|max] [--fix] [--comment [inline]] [<target>]

Medium effort = precision bias: every finding actionable. high, xhigh, max shift to recall; missed bug ships. Surface uncertain findings when mechanism realistic, label clearly.

Scope

Local review: diff branch against upstream (git diff @{upstream}...HEAD, fall back to main / master, or HEAD~1). Fold in uncommitted + untracked changes — review often runs pre-commit. If PR link, branch name, or file path passed as argument, review that target instead.