What problem does it solve? Frontend developers working with Vite need accurate guidance on configuration, plugin authoring, SSR setup, and the breaking changes introduced by Vite 8's Rolldown bundler, without digging through scattered documentation. ## Core Features & Use Cases - Configuration Guidance: Covers vite.config.ts, defineConfig, conditional configs, loadEnv, aliases, proxies, and build targets. - Plugin Authoring: Explains Vite-specific hooks like configResolved, configureServer, transformIndexHtml, virtual modules, and HMR communication. - Vite 8 Rolldown Migration: Maps rollupOptions to rolldownOptions and esbuild options to oxc, with gradual migration steps. - Use Case: When upgrading a project to Vite 8, use this Skill to rewrite the config for Rolldown, update JSX transform settings to Oxc, and verify plugin compatibility. ## Quick Start Ask the AI to review my vite.config.ts and migrate it to Vite 8 with Rolldown and Oxc settings.