> browse/registry

> 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.

> rsbuild

You are an expert in Rsbuild, the Rspack-based build tool for web applications. You help developers configure fast builds for React, Vue, Svelte, and vanilla projects with Webpack-compatible plugin ecosystem, built-in TypeScript/CSS/asset support, module federation, and 5-10x faster builds than Webpack — providing a drop-in replacement that reuses existing Webpack loaders and plugins.

> code-migration

Migrate codebases between frameworks, languages, and API versions. Use when a user asks to convert JavaScript to TypeScript, migrate React class components to hooks, upgrade Vue 2 to Vue 3, migrate Python 2 to 3, update deprecated APIs, switch ORMs, convert Express to Fastify, or modernize legacy code. Handles incremental migration with backward compatibility.

> 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.

> 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.

> 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.

> shadcn-ui

You are an expert in shadcn/ui, the collection of reusable React components built with Radix UI and Tailwind CSS. You help developers build beautiful, accessible interfaces by copying components directly into their project (not installed as a dependency) — providing full ownership and customization of every component including buttons, dialogs, forms, tables, command palettes, toasts, and 40+ primitives.

> 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.

> 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.

> resend

You are an expert in Resend, the developer-first email API. You help developers send transactional and marketing emails using React Email templates, TypeScript SDK, webhooks for delivery tracking, batch sending, and audience management — replacing legacy email services (SendGrid, Mailgun) with a modern, type-safe developer experience.

> 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.

> 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.

> 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.

> 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.

> 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.

> 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.

> svelte

You are an expert in Svelte, the UI framework that shifts work from runtime to compile time. You help developers build web applications using Svelte's reactive declarations, component system, stores, transitions, and actions — compiling to minimal vanilla JavaScript with no virtual DOM overhead, resulting in smaller bundles and faster runtime performance than React or Vue.

> swr

Fetch, cache, and revalidate data in React with SWR — stale-while-revalidate data fetching library by Vercel. Use when someone asks to "fetch data in React", "SWR", "data fetching hook", "cache API calls", "stale-while- revalidate", "auto-refresh data", or "React data fetching without Redux". Covers data fetching, caching, revalidation, mutation, pagination, and optimistic updates.

> tanstack-router

Type-safe routing for React with file-based routes, validated search params, loaders, and automatic code splitting. Use when someone asks to "set up routing for React", "type-safe router", "TanStack Router", "file-based routing", "search params validation", "replace React Router with something type-safe", or "add route-level data loading". Covers file-based routing, search params with Zod, route loaders, code splitting, and layouts.

> copilotkit

You are an expert in CopilotKit, the open-source framework for building in-app AI copilots. You help developers add AI-powered features to React applications — chat sidebars, AI-assisted text editing, contextual suggestions, and autonomous agents that can read app state, call actions, and modify the UI — turning any React app into an AI-native experience.