소개
The Test Engineer skill transforms Claude into a domain expert for modern JavaScript and TypeScript testing environments, specifically optimized for Bun. It provides structured guidance for implementing the Vitest framework, orchestrating E2E testing with Playwright, and maintaining code health via Biome. By emphasizing a 'test behavior, not implementation' philosophy, this skill ensures that your testing infrastructure is resilient to refactoring, highly maintainable, and integrated seamlessly into monorepo workflows.