Vue.js Patterns and Best Practices Comprehensive guide for Vue.js 3 development using Composition API ( ), covering component design, reactivity, state management, routing, testing, and SSR patterns. Nuxt-specific guidance is included where it differs from vanilla Vue. When to Activate Activate this skill when: - The project uses Vue.js (any version), Nuxt, Vite + Vue, or Pinia. - The user asks about Vue component architecture, composables, reactivity, or state management. - Reviewing Vue Single-File Components ( files). - Setting up Vue Router, Pinia stores, or Vite/Vitest configuration. - D…