AI Agent Skills

Use when generating mock objects with package:mockito and build_runner, or choosing between mocktail and mockito.

Node.js mock server running live, interactive mocks in place of real APIs

Test quality review drawing on twelve classic engineering books — with primary focus on xUnit Test Patterns, The Art of Unit Testing, How Google Tests Software, and Work…

Implements React/TypeScript unit, integration, and browser E2E tests with the repository's configured runner, mocks, setup, and browser harness. Use when creating or com…

Produces mock server definitions, sandbox environment specs, API stub configurations, and fixture data for any API. Use whenever the user asks about mocking an API, crea…

Migrate Jest, Vitest, or Playwright Test projects to Rstest. Use when replacing Jest/Vitest config, scripts, APIs, setup, mocks, snapshots, coverage, or projects with `@…

Guide for writing excellent unit tests based on "The Art of Unit Testing" principles. Use this skill when: (1) Writing new unit tests, (2) Reviewing test code quality, (…