test-case-coverage

Audits an already-automated test case (TC-XXX) — one end-to-end journey across several use cases — against its document and reports a coverage matrix: which Flow rows, Validation items, and postconditions have a test step and code behind them, which are still open, and which test steps have drifted away from the test case. Use when the user asks to "check coverage of TC-001", "is TC-001 completely automated", "audit the journey", "show me the coverage matrix for the test case", "what is still missing for TC-001", or "can I set TC-001 to Tested". This is specification coverage, not line coverage. It reports only — it writes no code, no tests, and no files. For projects that combine layer plugins and record them in docs/architecture/stack.md; aiup-vaadin-jooq and aiup-angular-jpa bring their own /coverage-check TC-XXX. A use case (UC-XXX) is /use-case-coverage. When the user wants the gaps closed rather than listed, use /test-case-implement or /use-case-implement instead.