Frontend Development Guidelines Purpose Comprehensive guide for modern frontend development across React, Vue 3, Svelte 5, and Angular. Covers framework-specific patterns, common architectural principles, and cross-framework best practices. When to Use This Skill - Creating components or pages in React, Vue, Svelte, or Angular - Building new features with framework-specific patterns - Implementing state management (Pinia, Zustand, stores, signals) - Setting up routing (TanStack Router, Vue Router, SvelteKit, Angular Router) - Data fetching patterns (TanStack Query, composables, SvelteKit load…