What problem does it solve? Merging a pull request on trust alone lets unmet acceptance criteria slip through. This Skill independently proves whether a PR actually satisfies every acceptance criterion of its linked issue, instead of relying on checked boxes, PR descriptions, or commit messages. ## Core Features & Use Cases - Criterion-by-criterion verification: Runs the project's configured verification commands, reads cited code precedents, and demands concrete evidence (command output, file:line references) for each acceptance criterion. - Mutation testing of regression tests: Reverts the production change via git and confirms the new regression test actually fails, proving the test guards what it claims. - Tracker integration: Checks off only verified criteria in the issue body and posts a verdict report (Pass / Needs work / Blocked) with a machine-readable "Blokuje merge" line as a PR comment on GitHub or Gitea. - Use Case: In a milestone run, before merging PR #42 that closes issue #38, invoke the Skill to verify each acceptance criterion in an isolated worktree and receive a merge-blocking verdict without touching the working tree. ## Quick Start Verify that PR 42 fulfills the acceptance criteria of its linked issue and post the verdict as a PR comment.