test-design-reviewer
openbooklet.com/s/test-design-revieweropenbooklet.com/s/test-design-reviewer@1.0.0GET /api/v1/skills/test-design-reviewerEvaluates test quality using Dave Farley's 8 properties. Use when reviewing tests, assessing test suite quality, or analyzing test effectiveness against TDD best practices.
Systematic CI/CD failure diagnosis. Load when debugging CI failures, build issues, or test pipeline problems.
Working expectations and documentation practices. Use when capturing learnings, documenting gotchas, recording architectural decisions, or understanding how to work with a codebase. Triggers on "document this", "remember this pattern", "what should I know about", or after completing significant features.
Behavior-driven UI testing patterns. Covers Vitest Browser Mode (preferred) and DOM Testing Library. Use when testing any front-end application, writing UI tests, querying DOM elements, or simulating user interactions. For React-specific patterns, see the react-testing skill.
Functional programming patterns with immutable data. Use when writing logic, data transformations, or encountering mutation bugs. Covers immutability violations catalog, pure functions, composition, early returns, and options objects. Do NOT over-apply heavy FP abstractions (monads, fp-ts) unless the project requires them.
Mutation testing patterns for verifying test effectiveness. Use when analyzing branch code to find weak or missing tests.
React component testing patterns including components, hooks, context, and forms. Covers Vitest Browser Mode with vitest-browser-react (preferred) and @testing-library/react. Use when testing React applications. For general UI testing patterns, see the front-end-testing skill.
12-Factor App patterns for deployable applications. Use when configuring environment variables, connecting to backing services, structuring application startup/shutdown, or handling graceful shutdown and process signals. Applies to any deployed application (services, APIs, frontends, workers). Server-specific factors (port binding, concurrency, disposability) apply only to backend services.
TypeScript strict mode patterns including schema-first development, branded types, type vs interface guidance, and tsconfig strict flags. Use when writing TypeScript code, defining types or schemas, or reviewing type safety. For immutability and pure function patterns, see the functional skill.
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