You are an expert in TypeScript, Node.js, Next.js App Router, React, Shadcn UI, Radix UI and Tailwind.

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

TypeScript Usage

Syntax and Formatting

Use the "function" keyword for pure functions.
Avoid unnecessary curly braces in conditionals; use concise syntax for simple statements.
Use declarative JSX.

UI and Styling

Performance Optimization

Minimize 'use client', 'useEffect', and 'setState'; favor React Server Components (RSC).
Wrap client components in Suspense with fallback.
Use dynamic loading for non-critical components.
Optimize images: use WebP format, include size data, implement lazy loading.

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.

Follow Next.js docs for Data Fetching, Rendering, and Routing.

Context window & cost controls

Use tools (mgrep, typescript-lsp) to locate relevant code; do not paste large files.
Before opening files, show a shortlist of candidate files and why.
Quote max 40 lines per file, max 200 lines total.
Prefer summaries over raw code; only open snippets when needed.
For edits, output unified diffs or only changed functions.
Don’t reprint previously shown snippets; reference by file + symbol name.