Converges a LOCAL branch with no pull request through a bounded review-apply-simplify loop. Dispatches the branch-reviewer agent, which runs the same impact graph, finders, verifier, and confidence/severity gates as pr-reviewer, but carries findings in a local findings.jsonl instead of GitHub review threads — so a run makes zero GitHub API calls, posts nothing, and works on an un-pushed branch or offline. Stops when every finding is applied or honestly declined AND the repo's own fast checks are green; a finding it can neither fix nor honestly decline stays flagged and visible, never quietly resolved. Use it to iterate before opening a PR, or when the comment round trip on your own PR is pure overhead. Once a PR exists use /review-loop instead — threads are the right bus when other people read them. Invoke with /review-branch [--base <ref>] [--cap N] [--effort high] [--no-simplify] [--no-checks] [--report] [--include-untracked].