> browse/registry

> raycast

Expert guidance for building Raycast extensions — custom commands, views, and integrations for the Raycast launcher on macOS. Helps developers create productivity extensions using React, TypeScript, and Raycast's API for lists, forms, actions, and preferences.

> thirdweb

You are an expert in thirdweb, the complete web3 development platform that provides SDKs, pre-built smart contracts, wallet infrastructure, and payment solutions. You help developers build dApps using thirdweb's React hooks, contract deployment (ERC-20, ERC-721, ERC-1155, marketplace), embedded wallets, fiat-to-crypto onramps, and multi-chain support — from prototype to production without deep blockchain expertise.

> konva

Build interactive 2D canvas applications with Konva. Use when a user asks to create drawing tools, image editors, interactive graphics, drag-and-drop interfaces, or canvas-based UIs using Konva or react-konva.

> react-three-fiber

You are an expert in React Three Fiber (R3F), the React renderer for Three.js that lets developers build 3D scenes using JSX components. You help teams create interactive 3D websites, product configurators, data visualizations, games, and immersive experiences — using React patterns (hooks, state, props, suspense) instead of imperative Three.js code, with full access to the Three.js ecosystem.

> test-generator

Generate unit, integration, and end-to-end tests for existing code. Use when a user asks to write tests, add test coverage, create unit tests, generate integration tests, build e2e tests, improve code coverage, write specs, or add testing to a project. Supports Jest, Vitest, Pytest, Playwright, React Testing Library, and Cypress. Analyzes code to produce meaningful assertions, edge cases, and mock setups.

> maestro

When the user wants to write mobile UI tests using Maestro's simple YAML-based flow definitions. Also use when the user mentions "maestro," "mobile UI testing," "YAML mobile tests," "maestro flows," or "maestro studio." For React Native-specific gray-box testing, see detox. For cross-platform mobile automation, see appium.

> plotly

Create interactive scientific and statistical charts with Plotly. Use when a user asks to build data visualizations, scatter plots, 3D charts, statistical graphs, or dashboards using Plotly.js or react-plotly.js.

> lottie

Play After Effects animations on web and mobile with Lottie — load JSON animation files, control playback, listen to events, and integrate animations into React, Vue, or vanilla JS apps. Use when tasks involve adding motion graphics, animated icons, loading indicators, or micro-interactions exported from After Effects or other animation tools.

> biome

You are an expert in Biome, the Rust-based toolchain that replaces ESLint and Prettier with a single, fast tool. You help developers configure linting, formatting, and import sorting for JavaScript, TypeScript, JSX, JSON, and CSS — achieving 100x faster execution than ESLint+Prettier with zero configuration, unified diagnostics, and IDE integration.

> react-email

You are an expert in React Email, the library for building responsive HTML emails using React components. You help developers create beautiful, cross-client-compatible email templates with type-safe components, live preview, and integration with email providers (Resend, SendGrid, Postmark, AWS SES) — replacing fragile HTML table layouts with a modern component-based workflow.

> plasmo

Expert guidance for Plasmo, the framework for building browser extensions with React, TypeScript, and modern tooling. Helps developers create Chrome and Firefox extensions with content scripts, background workers, popup UIs, and messaging — all with hot reload and zero webpack config.

> react-native-reanimated

Build smooth 60fps animations in React Native with Reanimated — run animations on the UI thread without JS bridge delays. Use when someone asks to "animate in React Native", "Reanimated", "smooth mobile animations", "gesture animations", "shared element transitions", or "60fps React Native animations". Covers worklets, shared values, layout animations, gestures, and scroll-driven animations.

> refine

Build data-intensive React applications with Refine. Use when a user asks to create admin panels, dashboards, or CRUD interfaces using Refine with REST, GraphQL, or custom data providers and Ant Design or Material UI.

> recharts

Build responsive charts in React with Recharts. Use when a user asks to create line charts, bar charts, area charts, pie charts, or composed dashboard visualizations using the Recharts component library.

> payload-cms

Assists with building content management systems using Payload CMS with a code-first approach. Use when defining collections in TypeScript, configuring access control, customizing the admin panel, or integrating with Next.js. Trigger words: payload, payload cms, headless cms, collections, admin panel, content management, payload fields.

> wails

Expert guidance for Wails, the Go framework for building desktop applications with web frontends. Helps developers build lightweight, fast desktop apps where the backend is Go and the frontend is any web framework (React, Vue, Svelte), communicating through auto-generated TypeScript bindings.

> sanity

Assists with building content platforms using Sanity's structured content and real-time collaboration features. Use when defining schemas, writing GROQ queries, configuring Sanity Studio, or integrating with Next.js for content-driven sites. Trigger words: sanity, groq, sanity studio, structured content, portable text, content lake, sanity schema.

> socketio

Add real-time communication with Socket.IO. Use when a user asks to build real-time features, add WebSocket communication, build a chat application, implement live notifications, create collaborative editing, stream live data, build real-time dashboards, add presence indicators, or implement pub/sub messaging in a web app. Covers server setup, client connection, rooms, namespaces, authentication, scaling with Redis adapter, and Next.js integration.

> solid

SolidJS is a reactive UI library that compiles to efficient vanilla JavaScript. It uses fine-grained reactivity with signals and stores, has no virtual DOM, and provides JSX components with excellent performance and small bundle size.

> nativewind

Use Tailwind CSS in React Native with NativeWind — write className instead of StyleSheet. Use when someone asks to "use Tailwind in React Native", "NativeWind", "style React Native with Tailwind", "className in React Native", or "utility-first styling for mobile". Covers setup, responsive design, dark mode, animations, and platform-specific styles.