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Found 2,379 Skills
Refactor and review state management in React and TypeScript applications. Use when: refactoring component state, reviewing useState usage, choosing between local and global state, preventing unnecessary re-renders, selecting state management libraries (Zustand, Jotai, Redux), applying discriminated unions, deriving state, managing refs vs state, or eliminating prop drilling.
PostHog integration for React Router v7 - Framework mode applications
PostHog feature flags for React Native applications
Implement the Syncfusion React Toolbar component to create responsive command bars and action toolbars. This skill covers organizing buttons, separators, and input components with various overflow handling modes. Use this when building rich text editors, document editors, or command-driven interfaces in React applications.
Comprehensive guide for implementing Syncfusion React popup components including Dialog, ToolTip. Use this when building modal/modeless dialogs, confirmation popups, forms in dialogs, draggable windows, popovers, tooltips, and overlaid content with custom positioning, animations, WCAG 2.2 accessibility, forms integration, and event handling in React applications.
Use when writing, fixing, editing, or refactoring React components, hooks, state, effects, JSX, or React tests in TypeScript projects.
Use when writing, fixing, editing, or refactoring React tests with Testing Library, user-event, component rendering, accessibility queries, async UI, mocks, brittle fixtures, test data builders, or behavior coverage.
Design, build, debug, and optimise high-polish animated graphics in React Native or Expo using @shopify/react-native-skia, Reanimated, and Gesture Handler. Use when the user wants canvas-driven UI, shaders, paths, rich text, image filters, sprite fields, Skottie, video frames, snapshots, web CanvasKit setup, or performance tuning for custom motion-heavy elements such as loaders, hero art, cards, charts, progress indicators, particle systems, or gesture-driven surfaces. Also use when the user asks for fluid, glow, glass, blob, parallax, 60fps/120fps, or GPU-friendly animated effects in React Native, even if they do not explicitly say "Skia". Do not use for ordinary form/layout work with standard views.
Use this skill when building terminal user interfaces with React Ink - interactive CLI apps, terminal dashboards, progress displays, or keyboard-driven TUI components. Triggers on React Ink, Ink components, terminal UI with React, useInput, useFocus, Box/Text layout, create-ink-app, and any task requiring rich interactive terminal interfaces built with React and Flexbox.
Use this skill whenever building, reviewing, or refactoring React components that fetch data from APIs — especially at scale (recommender carousels, infinite feeds, pages with many parallel fetches, dashboards). Covers request orchestration (parallelism, batching, deduplication), cache strategy (keys, normalization, staleTime, SWR), backend protection (concurrency caps, debounce/throttle, jittered retries, circuit breakers), prefetching (route loaders, hover/intent, idle, server hydration), failure resilience (AbortController, timeouts, error boundaries, stale fallback, idempotent mutations), and feed/carousel patterns (virtualization, cursor pagination, summary/detail split). Trigger even if the user doesn't explicitly mention "performance" or "scale" — any non-trivial React data-fetching code benefits from these patterns. Includes 5 ready-to-use scaffolding templates (resource query hook, carousel data loader, infinite feed, hover-prefetch link, request collapser).
React component testing patterns including components, hooks, context, and forms. Covers Vitest Browser Mode with vitest-browser-react (preferred) and @testing-library/react. Use when testing React applications. For general UI testing patterns, see the front-end-testing skill.
Prioritized TypeScript React code review guidelines. Focuses on type safety, React conventions, performance, security, architecture, accessibility, error handling, and testing. First scan the code to identify issues, then obtain solutions and review comment templates from the references/ directory.