🚀 NextJS Expert Engineer Agent

Expert Next.js development agent with comprehensive audit capabilities for Next.js 15+ applications. Provides professional development assistance, security auditing, performance optimization, and code quality analysis.

✨ Features

🔍 Advanced Audit Capabilities

• Standard Audit (/audit): Security, Performance, and Code Quality analysis
• Advanced Audit (/advanced-audit): Comprehensive professional audit with deep analysis
• Next.js 15+ Compliance: Latest features and best practices validation
• Production Readiness: Deployment strategies and monitoring recommendations

🛡️ Security Analysis

• Taint APIs implementation
• CSRF protection patterns
• Input validation with Zod schemas
• Authentication security (NextAuth.js v5, Auth.js)
• OWASP Top 10 compliance

⚡ Performance Optimization

• Partial Prerendering (PPR) analysis
• Advanced caching strategies
• Bundle optimization
• Core Web Vitals optimization
• Image and font loading optimization

🏗️ Code Quality Review

• SOLID principles compliance
• Component architecture analysis
• TypeScript optimization
• Testing setup recommendations
• Accessibility (WCAG 2.1) validation

🚀 Installation

⚡ Auto-Setup (Recommandé)

# Installation automatique - Prêt en 30 secondes !
npm install nextjs-expert-engineer

# ✅ Agent automatiquement configuré
# ✅ Détecte votre projet Next.js
# ✅ Optimise selon vos frameworks
# ✅ Utilisation immédiate possible

Manuel Installation

# NPM
npm install nextjs-expert-engineer

# Yarn
yarn add nextjs-expert-engineer

📖 Usage

Basic Development Assistance

I need to implement a dashboard with server components and proper caching

Standard Audit

/audit My Next.js app has performance issues with slow page loads

Advanced Audit

/advanced-audit Comprehensive analysis of my e-commerce Next.js application with user authentication and payment processing

Specific Feature Implementation

Help me implement Server Actions for form handling with proper validation and error handling

🎯 Audit Capabilities

Security Audit

• Vulnerability Detection: XSS, CSRF, injection attacks
• Data Protection: Sensitive data exposure, secure storage
• Authentication: Session management, token security
• Input Validation: Server Actions validation, sanitization
• Environment Security: Secrets management, configuration

Performance Audit

• Core Web Vitals: LCP, FID, CLS optimization
• Rendering Strategy: SSR vs CSR analysis
• Caching Analysis: Strategy optimization
• Bundle Analysis: Size optimization opportunities
• Database Queries: N+1 problem detection

Code Quality Audit

• Architecture Review: Component structure, modularization
• TypeScript Usage: Type safety, configuration
• Best Practices: Next.js 15+ conventions
• Testing Strategy: Coverage and approaches
• Maintenance: Code duplication, refactoring opportunities

🔧 Configuration

Project Integration

1. Add to your Next.js project:

// .claude/agents.json
{
  "agents": [
    "nextjs-expert-engineer"
  ]
}

2. Custom Configuration (Optional):

// .claude/config/nextjs-expert.json
{
  "auditLevel": "advanced",
  "focusAreas": ["security", "performance", "accessibility"],
  "nextjsVersion": "15+",
  "typescript": true,
  "frameworks": ["tailwind", "shadcn", "prisma"]
}

Environment Setup

# Required for full functionality
export NEXT_PUBLIC_APP_ENV=development
export CLAUDE_AGENT_LEVEL=expert

📚 Knowledge Base (2025)

Latest Next.js Features

• App Router: Stable with enhanced nested layouts
• Server Actions: Production-ready with improved security
• Partial Prerendering (PPR): Available with Turbopack
• React 19: Server Components, Concurrent Rendering, use() hook
• Turbopack: Development and build optimizations

Supported Integrations

• Databases: Prisma, Drizzle, MongoDB, PostgreSQL
• Authentication: NextAuth.js v5, Auth.js, Clerk, Supabase Auth
• Styling: Tailwind CSS, Styled Components, CSS Modules
• State Management: Zustand, Redux Toolkit, Valtio
• Testing: Vitest, Playwright, Jest, Testing Library

🛠️ Development

Local Development

git clone https://github.com/nextjs-expert/nextjs-expert-engineer.git
cd nextjs-expert-engineer
npm install
npm run validate

Contributing

1. Fork the repository
2. Create a feature branch: git checkout -b feature/amazing-feature
3. Commit changes: git commit -m 'Add amazing feature'
4. Push to branch: git push origin feature/amazing-feature
5. Open a Pull Request

📝 Examples

Server Actions Implementation

// Request: "Implement secure Server Actions for user profile update"

// Generated solution includes:
// - Input validation with Zod
// - Error handling
// - Revalidation strategies
// - Security best practices

Performance Optimization

// Request: "/audit Performance issues with dashboard loading"

// Analysis includes:
// - Bundle size analysis
// - Rendering strategy review
// - Caching optimization
// - Database query optimization

🤝 Support

• Documentation: Full Documentation
• Issues: GitHub Issues
• Discord: Community Discord
• Email: [email protected]

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

• Next.js team for the amazing framework
• Claude Code team for the agent infrastructure
• Community contributors and feedback

Made with ❤️ for the Next.js community