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Found 353 Skills
Use when configuring, writing, debugging, running, or migrating Vitest tests in JavaScript/TypeScript projects, including Vite, Vue, Nuxt, React, Next.js, Node libraries, workspaces, coverage, mocks, snapshots, flaky tests, and Jest migration.
Creates test infrastructure with Vitest, xUnit, and pytest
Content Collections TypeScript-first build tool for Markdown/MDX content. Use for blogs, docs, content sites with Vite + React, MDX components, type-safe Zod schemas, Contentlayer migration, or encountering TypeScript import errors, path alias issues, collection validation errors.
TypeScript CLI starter using tsdown. Use when scaffolding or maintaining an npm CLI package with tsdown, pnpm, Vitest, and npm Trusted Publisher.
Comprehensive React development guide covering component architecture, hooks, state management, TypeScript integration, useEffect patterns, and testing with Vitest. Use when creating React components, custom hooks, managing state, or any frontend React code. Essential for React 19+ development.
Expert in Vue.js TypeScript development with Vite, Pinia, and modern UI frameworks
Vite build tool configuration and ecosystem. Covers vite.config.ts setup, plugin authoring and popular plugins, dev server configuration (proxy, HMR, HTTPS), build optimization (chunking, tree-shaking, manual chunks, rollupOptions), library mode for publishing packages, SSR configuration, environment variables (.env handling), multi-page apps, CSS handling (PostCSS, CSS modules, preprocessors), and asset handling. Use when configuring Vite projects, authoring Vite plugins, optimizing builds, setting up dev server proxies, configuring SSR, handling environment variables, or troubleshooting Vite issues.
Modern TypeScript/JavaScript testing with Vitest. Fast unit and integration tests, native ESM support, Vite-powered HMR, and comprehensive mocking. Use for testing TS/JS projects.
Vue.js and TypeScript best practices for building performant applications with Vite, Pinia, VueUse, and Tailwind CSS.
Write unit tests, component tests, and integration tests for AiderDesk using Vitest and React Testing Library. Use when creating new tests, adding test coverage, configuring mocks, setting up test files, or debugging failing tests.
React component and hook testing patterns with Testing Library and Vitest. Use when writing tests for React components, custom hooks, or data fetching logic. Covers component rendering tests, user interaction simulation, async state testing, MSW for API mocking, hook testing with renderHook, accessibility assertions, and snapshot testing guidelines. Does NOT cover E2E tests (use e2e-testing) or TDD workflow enforcement (use tdd-workflow).
Use when writing, reviewing, or refactoring vitest tests. Load when you see *.test.ts or *.spec.ts files, nested describe blocks, loose assertions (toBeTruthy), over-mocking, slow tests, or async testing needs. Covers AAA pattern, parameterized tests, test doubles hierarchy, mock cleanup, test isolation, and performance optimization. Keywords include vitest, testing, TDD, assertions, mocks, stubs, fakes, spies, beforeEach, describe, it, expect, vi.mock, it.each.