For engineers who don't trust their test suite: catch real bugs and kill the flake. — built in-house by Skill Me.
Reach for this when your suite is green but you don't believe it — high coverage that misses the bug, tests that flake in CI, mocks that pass while production breaks. It takes a suite from "runs" to "trustworthy": prove which gaps actually matter, root-cause flakiness instead of retrying around it, and use mutation testing to expose assertions that verify nothing. Pull it in before a release cut or when a passing build still ships regressions.
⭐ If this is useful, star the repo — it's how we gauge what to build next.
- From the catalog: skillme.dev/pack/qa-test-automation — install the whole pack into Claude in one step.
- With the skills CLI:
npx skills add aouellets/qa-test-automation - Manually: copy any
skills/<slug>/SKILL.mdinto your Claude skills directory.
- Flaky Test Detangler — Root-causes intermittently failing tests and eliminates the hidden dependency at its source instead of retrying around it.
- Coverage Gap Finder — Produces a risk-ranked list of untested critical paths and branches, with the specific missing cases and the smallest test that buys the most safety.
- Test Data Builder — Builds realistic domain fixtures, factories, and edge-case datasets with the builder pattern and valid defaults.
- Contract Test Writer — Write consumer-driven contract tests at service and API boundaries so an incompatible change fails a build instead of breaking integrations silently in production.
- E2E Scenario Author — Converts an acceptance criterion or user story into one maintainable Playwright or Cypress end-to-end test that reads like the journey it covers.
- Mock Stub Designer — Designs the minimal set of test doubles for a unit or integration test and decides, per dependency, what to fake versus exercise for real.
- Mutation Test Runner — Runs mutation testing on already-covered code and turns each surviving mutant into a specific missing assertion, exposing tests that execute code but verify nothing.
- Playwright Testing — Reliable end-to-end browser tests with resilient selectors and no flaky waits.
- TDD Expert — Enforces Red-Green-Refactor discipline: write the failing test first, then the minimum code to pass it.
MIT — see LICENSE. Skills are portable SKILL.md files; the canonical
copies live in the Skill Me catalog.