Guide for implementing navigation in Next.js Server Components using Link component and redirect() function. Covers the difference between server and client navigation methods. Use when adding links, redirects, or navigation logic in server components without converting them to client components unnecessarily.
Identify and fix common Next.js App Router anti-patterns and mistakes. Use when reviewing code for Next.js best practices, debugging performance issues, migrating from Pages Router patterns, or preventing common pitfalls. Activates for code review, performance optimization, or detecting inappropriate useEffect/useState usage. CRITICAL: For browser detection, keep the logic in the user-facing component (or a composed helper that it renders) rather than isolating it in unused files.
Guide for Next.js App Router dynamic routes and pathname parameters. Use when building pages that depend on URL segments (IDs, slugs, nested paths), accessing the `params` prop, or fetching resources by identifier. Helps avoid over-nesting by defaulting to the simplest route structure (e.g., `app/[id]` instead of `app/products/[id]` unless the URL calls for it).
Pattern for client components calling server actions to set cookies in Next.js. Covers the two-file pattern of a client component with user interaction (onClick, form submission) that calls a server action to modify cookies. Use when building features like authentication, preferences, or session management where client-side triggers need to set/modify server-side cookies.
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.
TanStack Router file-based routing patterns including route creation, navigation, loaders, type-safe routing, and lazy loading. Use when creating routes, implementing navigation, or working with TanStack Router.
Next.js 15+ App Router development patterns including Server Components, Client Components, data fetching, layouts, and server actions. Use when creating pages, routes, layouts, components, API route handlers, server actions, loading states, error boundaries, or working with Next.js navigation and metadata.
Core React 19 patterns including hooks, Suspense, lazy loading, component structure, TypeScript best practices, and performance optimization. Use when working with React components, hooks, lazy loading, Suspense boundaries, or React-specific TypeScript patterns.
Core Node.js backend patterns for TypeScript applications including async/await error handling, middleware concepts, configuration management, testing strategies, and layered architecture principles. Use when building Node.js backend services, APIs, or microservices.
React Router performance and architecture patterns. Use when writing loaders, actions, forms, routes, or working with React Router data fetching. Triggers on tasks involving React Router routes, data loading, form handling, or route organization.
Internationalization best practices for React Router framework mode using remix-i18next. Use when setting up locales, middleware, resource routes, or language switching.
TypeScript/Node.js API development skills. REST API patterns, Express/Fastify handlers, TypeScript types, Zod validation, and async patterns.
Configures Neon Serverless Driver for Next.js, Vercel Edge Functions, AWS Lambda, and other serverless environments. Installs @neondatabase/serverless, sets up environment variables, and creates working API route examples with TypeScript types. Use when users need to connect their application to Neon, fetch or query data from a Neon database, integrate Neon with Next.js or serverless frameworks, or set up database access in edge/serverless environments where traditional PostgreSQL clients don't work.
Next.js App Router patterns for full-stack applications. Use when building Next.js apps with App Router, Server Components, API Routes, authentication, or full-stack React applications.
Use when designing APIs, Architecture, Security, or Scalability for Node, Python, Go, or Java backend systems.
React and Next.js performance optimization guidelines from Vercel Engineering. Sub-skill of frontend-developer. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
Generate complete full-stack project scaffolding for React + Node.js + PostgreSQL applications. Includes frontend, backend, database, auth, testing, CI/CD, Docker, and documentation templates. Not for: mobile apps, serverless architectures, or non-JavaScript stacks.
Reference for building Starknet applications using starknet.js v9.x SDK, including contract interaction, account management, transaction handling, fee estimation, wallet integration, and paymaster flows.
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.
Adds logic, state management, TypeScript types, and CRUD operations to UI. Works AFTER ui-first-builder creates the interface. Implements Zustand stores, form handling with React Hook Form + Zod, and prepares for backend connection. Triggers: add logic, add functionality, make it work, state management, form validation, data operations, TypeScript types.
Supabase integration specialist. Handles database schema, authentication, Row Level Security (RLS), real-time subscriptions, and storage. Connects existing UI to real backend. Only called AFTER UI exists with mock data. Triggers: connect database, connect Supabase, add auth, make login, backend integration, real data, authentication, database schema.
Master workflow controller for Lovable-style development. Creates working UI immediately from ANY prompt - no questions asked, no choices given. Routes to specialist sub-agents (ui-builder, dev-builder, design-reviewer, backend-connector, platform-adapter). Triggers: create, build, make, want, new project requests, app ideas, MVP, prototype, or any development request. This skill MUST be read first for any development task.
