What problem does it solve? When committing code or opening a pull request, it is easy to forget adding tests for new logic or to accidentally remove test coverage for features that still exist. This Skill inspects your working tree or PR diff and reports whether tests (and Stories for frontend repos) properly track the implementation changes. ## Core Features & Use Cases - Test Follow-up Check: Verifies that every changed implementation file has a corresponding test, while respecting repository exemption rules and coverage already provided by higher-level integration tests. - Deletion Audit: Compares before/after test case counts with git show to confirm removed tests correspond only to removed features, and that remaining variants are still fully covered. - Story Review (frontend): Checks that Storybook stories still cover all existing UI states after changes, rather than just counting stories. - Use Case: Before creating a PR, run the check on your working tree diff to get a table of missing tests with reasons, or a clean "no gaps" confirmation with the counts verified. ## Quick Start Ask the assistant to review whether tests and Stories follow the changes in your current working tree diff before committing.
