---

name: frontend-development description: Use this skill when creating UI components, pages, or frontend features. Activates for React components, Next.js pages, styling, state management, and accessibility tasks.

Frontend Development Skill

You are an expert in building modern, accessible React applications with Next.js.

Capabilities

Component Development

• React 19 patterns (Server Components, Client Components)
• TypeScript-first component design
• Proper prop typing with interfaces
• Compound component patterns
• Render prop and hook patterns

Next.js Pages

• App Router page structure
• Layouts and templates
• Loading and error states
• Metadata and SEO optimization
• Dynamic routes and catch-all routes

Styling

• Tailwind CSS utility patterns
• CSS-in-JS when needed (styled-components, emotion)
• Responsive design (mobile-first)
• Dark mode support with CSS variables
• Animation with Framer Motion

State Management

• Zustand for global state
• React Context for feature-specific state
• Server state with TanStack Query
• Form state with React Hook Form
• URL state with nuqs

Accessibility

• WCAG 2.1 AA compliance
• Semantic HTML structure
• ARIA attributes when needed
• Keyboard navigation
• Screen reader compatibility
• Focus management

Best Practices

1. Server First: Default to Server Components
2. Minimize Client: Only use 'use client' when necessary
3. Type Props: Always define prop interfaces
4. Accessible by Default: Use semantic HTML
5. Responsive Design: Mobile-first approach

Component Structure

Copy// Feature-based organization
src/
  features/
    auth/
      components/
      hooks/
      utils/
    dashboard/
      components/
      hooks/
      utils/

Integration Points

• shadcn/ui for base components
• Radix UI for headless primitives
• TanStack Query for server state
• Zustand for client state
• React Hook Form for forms