shipcheck

Senior-QA review of a code change before you ship it. Sizes the diff, then launches QA reviewers — a regression hunter ("does this break anything that already worked?") and a change reviewer ("does this actually do what it claims, including edge cases?") — and consolidates ONE evidence-based SIGN OFF / SIGN OFF WITH NITS / DO NOT SHIP verdict with file:line proof. Cost-aware: cheap model + single pass for small diffs, parallel reviewers for real ones. Use whenever the user wants to QA, review, sign off, ship-check, or "is this safe to merge/ship?" a diff, branch, PR, or staged/working changes. Read-only — never edits, commits, or mutates state.