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Found 1,545 Skills
Write and maintain Playwright end-to-end tests for the Onyx application. Use when creating new E2E tests, debugging test failures, adding test coverage, or when the user mentions Playwright, E2E tests, or browser testing.
Configure GitHub Actions CI/CD workflows for automated testing, linting, and deployment. Use for CI/CD setup and quality automation. Skip if CI/CD configured or using different platform.
PHPUnit testing conventions and best practices for any PHP project
Comprehensive Ink skill for building CLI applications with React. Covers components (Text, Box, Static, Transform), hooks (useInput, useApp, useFocus), Flexbox layout, testing, and accessibility.
First-principles thinking; identify what everything else builds on. Use when a learner feels like they're memorizing rather than understanding, wants to distinguish foundational from derived concepts, or needs to reconstruct knowledge from basics. This skill guides through dependency testing (elimination, reconstruction, abstraction descent) while enforcing human-only reasoning about what's core vs. derived. Triggers on phrases like "I'm memorizing not understanding", "what's really foundational", "I can use it but don't understand why", "distinguish core from derived", or when a learner wants deeper understanding of first principles.
Type-safe, file-based router for React with first-class search params, data loading, and code splitting. Use when user asks to "create routes with TanStack Router", "set up file-based routing", "add search params", "use loaders", "protect routes with auth", "add code splitting", or asks about @tanstack/react-router, createFileRoute, createRouter, routeTree.gen.ts, useSearch, useParams, useNavigate, useBlocker, useMatch, useRouterState, beforeLoad, or route configuration. Do NOT use for TanStack Start server functions, Next.js App Router, React Router (without migration context), or Remix routing. Covers routing setup, navigation, search/path params, data loading, authentication, code splitting, SSR, error handling, testing, deployment, and bundler configuration (Vite, Webpack, Rspack, esbuild).
Designs and implements custom Textual widgets with composition, styling, and lifecycle management. Use when creating reusable widget components, composing widgets from built-in components, implementing widget lifecycle (on_mount, on_unmount), handling widget state, and testing widgets. Covers custom widgets extending Static, Container, and building complex widget hierarchies.
Guides users through structured three-stage collaborative documentation workflow including context gathering, iterative refinement, and reader testing. Use when asked to "write a doc", "draft a proposal", "create a spec", "write technical documentation", "create a PRD", or "draft an RFC". Implements systematic approach for PRDs, design docs, decision docs, technical specs, and proposals through clarifying questions, section-by-section iteration, and fresh-eye validation. Works with markdown documentation, technical specifications, and structured writing projects.
Captures screenshots at multiple viewport breakpoints for responsive design validation and documentation. Use when you need to test responsive layouts, validate mobile/tablet/desktop views, document design system breakpoints, or create visual regression test baselines. Triggers on "test responsive design", "screenshot at breakpoints", "capture mobile and desktop views", "responsive design testing", or "multi-device screenshots". Works with Playwright MCP tools (browser_navigate, browser_resize, browser_take_screenshot).
Comprehensive vitest testing patterns covering test structure, AAA pattern, parameterized tests, assertions, mocking, test doubles, error handling, async testing, and performance optimization. Use when writing, reviewing, or refactoring vitest tests, or when user mentions vitest, testing, TDD, test coverage, mocking, assertions, or test files (*.test.ts, *.spec.ts).
Core DSPy framework guidance — signatures, modules, programs, compilation, and testing. Use when creating DSPy signatures, building modules, compiling programs, or learning DSPy fundamentals.
Run Firefox mach try commands with pre-configured flags for os-integration testing on Windows and Linux alpha worker pools. Use when testing Firefox changes against Windows 10, Windows 11, Ubuntu 24.04, hardware workers, ARM64, or AMD configurations. Triggers on "os-integration", "mach try", "windows testing", "linux testing", "alpha image".