What problem does it solve? Unit test suites often drift out of sync with the specification, leaving acceptance scenarios, edge cases, and functional requirements untested while other cases get duplicated. This Skill audits existing tests against the spec and adds only the missing coverage. ## Core Features & Use Cases - Spec-Driven Audit: Reads Acceptance Scenarios, Edge Cases, Functional Requirements, and Clarifications from specs/*/spec.md to build the authoritative list of what must be tested. - Gap-Only Test Generation: Reports scenarios already covered in tests/unit/ and writes new tests with real asserts only for uncovered items, avoiding duplication. - Verified Execution: Runs uv run pytest tests/unit/ -v and reports how many tests passed, failed, and were newly added. - Use Case: After implementing a feature with Spec Kit, run this Skill to confirm every acceptance scenario and edge case has a corresponding unit test before merging. ## Quick Start Audit my unit tests against the spec and add tests for any uncovered acceptance scenarios or edge cases.