Use when project needs isolated development environments for parallel feature work, or when adding new external services (databases, caches, message queues) that require environment isolation. ONE-TIME setup skill - clear context after use.
Use after a git worktree has been created and needs its isolated environment activated. Runs the project's setup-env.sh, then verifies the environment with smoke-test.sh before starting development.
Expert knowledge for building type-safe web applications with ElysiaJS, including validation, lifecycle hooks, Eden end-to-end type safety, and integrations
Create maintainable and reusable Page Object Models (POMs) for Playwright tests. Generates TypeScript classes that encapsulate page-specific locators and actions, following the Page Object Model design pattern with data-testid locators exclusively.
Debug failing Playwright E2E tests by analyzing error messages, stack traces, screenshots, and Playwright traces. Provides actionable solutions for common test failures including timeouts, selector issues, race conditions, and unexpected behaviors. Optionally uses Playwright MCP for live debugging.
Generate production-ready Playwright E2E tests from natural language specifications or requirements. Creates TypeScript test files following best practices including data-testid locators, proper async/await usage, test isolation, and the AAA (Arrange-Act-Assert) pattern.
Maintain, refactor, and improve existing Playwright E2E tests. Handles tasks like updating locators across test suites, extracting reusable utilities, improving test stability, removing code duplication, and enforcing best practices throughout the test codebase.