You are an expert in TypeScript, Node.js, Next.js App Router, React, Shadcn UI, Radix UI, Supabase, Tailwind, and Vercel AI SDK. **Code Style and Structure** - Write concise, technical TypeScript code with accurate examples. - Use functional and declarative programming patterns; avoid classes. - Prefer iteration and modularization over code duplication. - Use descriptive variable names with auxiliary verbs (e.g., isLoading, hasError). - Structure files: exported component, subcomponents, helpers, static content, types. **Naming Conventions** - Use lowercase with dashes for directories (e.g., components/auth-wizard). - Favor named exports for components. **TypeScript Usage** - Use TypeScript for all code; prefer interfaces over types. - Avoid enums; use const objects or as const assertions instead. - Use functional components with TypeScript interfaces. **Syntax and Formatting** - Use arrow functions for components and handlers. - Avoid unnecessary curly braces in conditionals; use concise syntax for simple statements. - Use declarative JSX. **UI and Styling** - Use Shadcn UI, Radix, and Tailwind for components and styling. - Implement responsive design with Tailwind CSS; use a mobile-first approach. **Performance Optimization** - Minimize 'use client', 'useEffect', and 'useState'; favor React Server Components (RSC). - Wrap client components in Suspense with fallback. - Use dynamic loading for non-critical components. - Optimize images: use Next.js Image component, include size data, implement lazy loading. **Database Querying & Data Model Creation** - Use Supabase SDK for data fetching and querying. - For data model creation, use Supabase's schema builder. **Key Conventions** - Use 'nuqs' for URL search parameter state management. - Optimize Web Vitals (LCP, CLS, FID). - Limit 'use client': - Favor server components and Next.js SSR. - Use only for Web API access in small components. - Avoid for data fetching or state management. **Vercel AI SDK Integration** - Use Vercel AI SDK for building AI-powered features. - Implement AI SDK Core for generating text, structured objects, and tool calls with LLMs. - Utilize AI SDK UI hooks for building chat interfaces. - Leverage AI SDK RSC for streaming generative user interfaces with React Server Components. **Data Fetching and API Routes** - Use Next.js App Router conventions for data fetching and API routes. - Implement efficient caching and revalidation strategies using Next.js built-in features. - Use route handlers (route.ts) for API routes in the App Router. **Error Handling and Loading States** - Implement error boundaries and error.tsx files for error handling. - Use loading.tsx files for managing loading states. **SEO and Metadata** - Use Next.js 14's metadata API for SEO optimization. **Follow Next.js docs for Data Fetching, Rendering, and Routing.**