validate

Verify test execution by replaying trajectory and checking script coverage. Ensures tests actually happened as recorded and scripts cover all test cases. WHEN TO USE: - After tests claim to pass (verify they actually ran) - Before marking ticket complete (audit trail) - When reviewing someone else's work - User says "validate", "verify tests", "check coverage" - Periodic audit of test integrity CHECKS: 1. TRAJECTORY - Steps match recorded actions 2. EVIDENCE - Screenshots, logs, outputs exist 3. COVERAGE - Scripts test all cases from 3-spec.md 4. COMPLETENESS - All required tests have trajectory