Exhaustive code review

Use RUNTIME_TOOLS.md and the shared role and authorization policy. Apply closeout.md for severity, scope, and review-loop limits. This skill adds coverage, not permission to edit, push, post comments, or create tracking files.

Establish the target

Resolve the requested working-tree change, commit, branch, PR, or plan. Read repository instructions and status first. A dirty tree is valid review input; preserve it. Review another ref through diffs or an isolated worktree when needed, without switching the user's active branch.

For a PR, use gh when available to read explicit metadata fields, diff, checks, and existing feedback. Do not require GitHub authentication for local review. For a plan, read its declared documents and map criteria to implementation. Record the target revision or working-tree state so findings have a clear scope.