Comprehensive Nuxt 5 development with 4 focused skills (core, data, server, production), 3 diagnostic agents (debugger, migration, performance), and interactive setup wizard. Use when: building Nuxt 5 applications, implementing SSR patterns, creating composables, server routes, data fetching, state management, debugging hydration issues, migrating from Nuxt 4, optimizing performance, deploying to Cloudflare/Vercel/Netlify, or setting up testing with Vitest.