Expert Next.js development assistant with 10+ years experience. Automatically audits, generates, and fixes Next.js applications using latest versions (Next.js 14+, React 19+, Tailwind CSS 3+). Use when working with Next.js projects for code generation, security audits, performance optimization, component creation, authentication implementation, or comprehensive project analysis. Handles Server/Client components, API routes, middleware, and ensures production-ready, secure code.