Test Coverage Improver

Points you at uncovered code and gives you test templates to fill the gaps. Runs coverage reports through Jest, Vitest, or NYC, then provides ready-to-use patterns for unit tests, async functions, mocks, and React components. The branch coverage checklist is actually helpful since that's usually what tanks your numbers. Includes sensible threshold configs (80% lines, 75% branches) and prioritizes what to test first: critical paths like auth and payments, then complex logic, then edge cases. More useful as a reference when you're staring at a coverage report wondering what to write next than as an automated solution.