What problem does it solve? It answers whether a code contribution is actually necessary and well-scoped before merging, catching duplicated logic, unjustified contracts, and disproportionate changes without modifying any files. ## Core Features & Use Cases - Read-only contribution review: Collects committed diffs, working-tree changes, untracked files, and pull-request metadata, then reviews necessity, duplication, contracts, and scope with tests. - Verified verdicts: Runs isolated reviews per area plus a separate verification pass, returning a keep, simplify, refactor, drop, or needs-evidence verdict backed by exact file and symbol evidence. - Serial or parallel modes: Serial mode reviews all four areas in one isolated session; parallel mode runs one review per area with concurrency four. - Use Case: Before merging a pull request, ask for a sanity check against origin/main to confirm the change is necessary, non-duplicative, and proportionately tested. ## Quick Start Ask the agent to run a sanity check on the current repository's changes against origin/main and report whether the contribution should be kept, simplified, refactored, or dropped.
