React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
Next.js best practices - file conventions, RSC boundaries, data patterns, async APIs, metadata, error handling, route handlers, image/font optimization, bundling
Upgrade Next.js to the latest version following official migration guides and codemods
Restructures React frontend from monolith to component-based architecture
Elixir 1.17+ development specialist covering Phoenix 1.7, LiveView, Ecto, and OTP patterns. Use when developing real-time applications, distributed systems, or Phoenix projects.
Ruby 3.3+ development specialist covering Rails 7.2, ActiveRecord, Hotwire/Turbo, and modern Ruby patterns. Use when developing Ruby APIs, web applications, or Rails projects.
JavaScript ES2024+ development specialist covering Node.js 22 LTS, Bun 1.x (serve, SQLite, S3, shell, test), Deno 2.x, testing (Vitest, Jest), linting (ESLint 9, Biome), and backend frameworks (Express, Fastify, Hono). Use when developing JavaScript APIs, web applications, or Node.js projects.
Guidance on using runtime-env with Vite to distinguish between runtime and build-time environment variables.
GMX V2 perpetual and spot DEX — spot swaps, perpetual trading (50x leverage), liquidity provision (GM tokens), Chainlink Data Streams, isolated pools, position management, and multicall patterns. TypeScript SDK (@gmx-io/sdk) and direct contract interactions on Arbitrum and Avalanche.
Full-stack dApp development framework — quick start with npx create-eth@latest, Foundry/Hardhat monorepo, custom React hooks (useScaffoldWriteContract, useScaffoldReadContract, useDeployedContractInfo, useTransactor), contract hot reload, auto-generated debug page, three-phase build (Local to Testnet to Production), external contract integration, and deployment patterns.
Ranger Finance SDK for building perpetual futures trading applications on Solana. The first Solana Perps Aggregator - aggregates liquidity across multiple perp protocols (Drift, Flash, Adrena, Jupiter). Use when integrating perps trading, smart order routing, position management, or building AI trading agents.
Build good-looking web interfaces. Use when: - User asks you to build a web app, website, landing page, or HTML page - User asks for a one-off tool, utility, or demo app - User is starting a new frontend project - User wants to improve how something looks - User mentions UI, design, styling, or making something look better This applies to ANY frontend work, not just "design" tasks. Even simple apps benefit from basic design principles.
Provides project context for the amgiflol WXT + Svelte 5 browser extension. Use when adding or editing extension code, adding entrypoints, fixing extension bugs, or when working in src/entrypoints or wxt.config.ts.
GraphQL schema architect for efficient, scalable API graphs. Invoke for federation, subscriptions, query optimization. Keywords: GraphQL, Apollo, Federation, schema design, resolvers.
API tasarımı, GraphQL schema, OpenAPI spec, versioning. ⚠️ Tasarım aşaması için kullan. Uygulama/security için → backend-api.
The ultimate authentication and authorization skill. Implement login, signin, signup, registration, OAuth, 2FA, MFA, passkeys, and user session management. Secure your application with RBAC and access control.
REST uygulama, validation, security headers, auth patterns. ⚠️ Kod yazarken kullan. API tasarımı/GraphQL için → api-design.
Expert knowledge for Formedible - A React form library built on TanStack Form with 22+ field types, multi-page forms, analytics, and type-safe validation
Maps a Kirby project using Kirby MCP tools/resources, including roots, templates, snippets, controllers, models, blueprints, plugins, runtime status, and key config. Use when a user wants a project overview, file locations, or a quick orientation before making changes.
React specialist for production-grade web applications. Invoke for component architecture, hooks, state management, Server Components, performance. Keywords: React, JSX, hooks, useState, useEffect, use(), Suspense, RSC.
Vue 3 specialist for reactive, performant applications. Invoke for Composition API, Nuxt 3, Pinia state management, TypeScript integration. Keywords: Vue 3, Composition API, Nuxt, reactive, composables, Pinia.
React, Tailwind, shadcn/ui ile karmaşık web artifacts oluşturma rehberi.
React Native best practices, hooks, navigation ve performance optimization.
