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Testing & Quality

Tests that fail for the right reasons. A testing stack that earns trust: decide what to test at which level, write fast unit suites, cover user journeys with Playwright, test APIs and contracts against real dependencies, measure test strength with mutation testing, and fix flaky tests instead of retrying them.

  • 10 skills
  • 1,940 lines of instructions
  • MIT

What's inside

Best for: Teams whose test suite is slow, flaky or missing. Start with test-strategy and flaky-test-triage. Each skill loads when a request matches its description, or call one directly with its $name.

  1. Test Strategy Pick the test mix from risks, not diagrams Testing & QA$test-strategy143 lines
  2. Unit Testing Patterns Tests that survive refactors and fail for one reason Testing & QA$unit-testing-patterns215 lines
  3. Vitest Testing Hoisted mocks, named projects, real-browser tests Testing & QA$vitest-testing205 lines
  4. pytest Testing Fixtures scoped right, cases named, suites parallel Testing & QA$pytest-testing206 lines
  5. Playwright E2E Role locators, one login, a trace for every flake Testing & QA$playwright-e2e218 lines
  6. API Testing Every status a client must handle, checked over HTTP Testing & QA$api-testing244 lines
  7. Contract Testing Catch cross-service breakage before either side deploys Testing & QA$contract-testing206 lines
  8. Testcontainers Test against real Postgres, not a lookalike Testing & QA$testcontainers186 lines
  9. Flaky Test Triage Name the cause, prove the fix, retire the retry Testing & QA$flaky-test-triage138 lines
  10. Mutation Testing Find the bugs your green test suite would ship Testing & QA$mutation-testing179 lines
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