> browse/registry

> nextjs-tooling

Configure Next.js build tooling, deployment, and developer workflow. Use when setting up Turbopack, standalone Docker output, bundle analysis, CI caching, environment variable validation, or ESLint integration for Next.js projects. (triggers: next.config.js, package.json, Dockerfile, turbopack, output, standalone, lint, telemetry)

> nextjs-testing

Write Vitest unit tests with React Testing Library and Playwright E2E tests for Next.js App Router projects. Use when testing components with RTL, mocking APIs with MSW, or creating Playwright user flow tests. (triggers: **/*.test.{ts,tsx}, cypress/**, tests/**, vitest, playwright, msw, testing-library)

> react-native-architecture

Structure React Native projects with feature-first organization and separation of concerns. Use when structuring a React Native project or applying clean architecture patterns. (triggers: src/**/*.tsx, src/**/*.ts, app.json, feature, module, directory structure, separation of concerns, Expo, React Navigation, StyleSheet.create, react-native, mobile architecture)

> react-native-navigation-v6

Configure React Navigation 6+ stacks, tabs, and deep linking for React Native. Use when implementing React Navigation stacks, tabs, or deep linking in React Native. (triggers: **/*Navigation*.tsx, src/navigation/**, navigation, react-navigation, stack, tab, drawer, deep link)

> react-native-platform-specific

Handle iOS and Android differences using Platform API and native modules in React Native. Use when handling platform-specific behavior or integrating native modules in React Native. (triggers: **/*.tsx, **/*.ts, **/*.ios.*, **/*.android.*, Platform, Platform.select, native-module, ios, android)

> react-performance

Optimize React rendering, bundle size, and data fetching performance. Use when optimizing React rendering performance, reducing re-renders, or improving bundle size. (triggers: **/*.tsx, **/*.jsx, waterfall, bundle, lazy, suspense, dynamic)

> nextjs-pages-router

Implement Pages Router data fetching with getServerSideProps, getStaticProps, and API routes in Next.js legacy projects. Use when working in a pages/ directory project, adding SSR/SSG data fetching, or creating API routes. (triggers: pages/**/*.tsx, pages/**/*.ts, Pages Router, getServerSideProps, getStaticProps, _app, useRouter)

> react-typescript

Type React components and hooks with TypeScript patterns. Use when typing React props, hooks, event handlers, or component generics in TypeScript. (triggers: **/*.tsx, ReactNode, FC, PropsWithChildren, ComponentProps)

> react-native-testing

Test React Native components with Jest and React Native Testing Library. Use when writing Jest or React Native Testing Library tests for React Native components. (triggers: **/*.test.tsx, **/*.spec.tsx, __tests__/**, test, testing, jest, render, fireEvent, waitFor)

> nextjs-data-access-layer

Build secure, reusable data access patterns with DTOs, taint checks, and colocated authorization in Next.js. Use when centralizing database queries, transforming raw data to DTOs, adding server-only guards, or preventing sensitive data from reaching Client Components. (triggers: **/lib/data.ts, **/services/*.ts, **/dal/**, DAL, Data Access Layer, server-only, DTO)

> android-coroutines

Authoritative rules and patterns for production-quality Kotlin Coroutines onto Android. Covers structured concurrency, lifecycle integration, and reactive streams.

> javascript-typescript

JavaScript and TypeScript development with ES6+, Node.js, React, and modern web frameworks. Use for frontend, backend, or full-stack JavaScript/TypeScript projects.

> react-native-notifications

Push notifications for React Native using Firebase or Expo Notifications. Use when integrating push notifications with Firebase or Expo in React Native. (triggers: **/*notification*.ts, **/*notification*.tsx, **/App.tsx, Notifications, messaging, FCM, expo-notifications, react-native-firebase)

> axiom-combine-patterns

Use when working with Combine publishers, AnyCancellable lifecycle, @Published properties, or bridging Combine with async/await. Covers reactive patterns, operator selection, memory management, and migration strategy.

> nextjs-caching

Configure the 4 caching layers in Next.js: request memoization, data cache, full-route cache, and router cache. Use when setting revalidation strategies, invalidating cached data with tags, or diagnosing stale data bugs. (triggers: **/page.tsx, **/layout.tsx, **/action.ts, unstable_cache, revalidateTag, Router Cache, Data Cache)

> nextjs-upgrade

Next.js version migrations using official guides and codemods. Use when migrating a Next.js project to a new major version using codemods. (triggers: package.json, next upgrade, migration guide, codemod)

> react-native-state-management

Manage local and global state with Context, Zustand, and Redux Toolkit in React Native. Use when choosing or implementing state management in React Native with Context, Zustand, or Redux. (triggers: **/*.tsx, **/*.ts, useState, useContext, zustand, redux, state-management)

> react-native-components

Build modern React Native components using function components and composition. Use when building or refactoring React Native function components and composable UI. (triggers: **/*.tsx, **/*.jsx, component, props, children, composition, presentational, container)

> react-dev

This skill should be used when building React components with TypeScript, typing hooks, handling events, or when React TypeScript, React 19, Server Components are mentioned. Covers type-safe patterns for React 18-19 including generic components, proper event typing, and routing integration (TanStack Router, React Router).

> react-composition-patterns

React composition patterns that scale. Use when refactoring components with boolean prop proliferation, building flexible component libraries, or designing reusable APIs. Triggers on tasks involving compound components, render props, context providers, or component architecture. Includes React 19 API changes. Do NOT use for React/Next.js performance optimization (use react-best-practices instead).