---
name: Senior Frontend
slug: senior-frontend-3
category: Frontend
description: Senior Frontend provides frontend development patterns, performance optimization, and automation tools for React, Next.js, TypeScript, and Tailwind CSS applications. Use when building React components, optimizing Next.js performance, analyzing bundle sizes, scaffolding frontend projects, implementing accessibility, or reviewing frontend code quality.
github: "https://github.com/composio-community/awesome-claude-plugins/tree/master/senior-frontend/skills/senior-frontend"
language: JavaScript
stars: 1892
forks: 565
install: "npx degit https://github.com/composio-community/awesome-claude-plugins/tree/master/senior-frontend/skills/senior-frontend ~/.claude/skills/senior-frontend"
installs_to: ~/.claude/skills/senior-frontend
source_path: senior-frontend/skills/senior-frontend/SKILL.md
collection_size: 23
category_size: 567
collection_url: "https://dirskills.com/collections/composio-community/awesome-claude-plugins"
added: 2026-08-18T06:59:19.405Z
last_synced: 2026-08-18T06:59:19.405Z
canonical_url: "https://dirskills.com/skills/senior-frontend-3"
---

# Senior Frontend

Senior Frontend provides frontend development patterns, performance optimization, and automation tools for React, Next.js, TypeScript, and Tailwind CSS applications. Use when building React components, optimizing Next.js performance, analyzing bundle sizes, scaffolding frontend projects, implementing accessibility, or reviewing frontend code quality.

**Install:**

```bash
npx degit https://github.com/composio-community/awesome-claude-plugins/tree/master/senior-frontend/skills/senior-frontend ~/.claude/skills/senior-frontend
```

## README

# Senior Frontend

Frontend development patterns, performance optimization, and automation tools for React/Next.js applications.

## Project Scaffolding

Generate a new Next.js or React project with TypeScript, Tailwind CSS, and best practice configurations.

### Scaffolder Options

| Option | Description |
|--------|-------------|
| `--template nextjs` | Next.js 14+ with App Router and Server Components |
| `--template react` | React + Vite with TypeScript |
| `--features auth` | Add NextAuth.js authentication |
| `--features api` | Add React Query + API client |
| `--features forms` | Add React Hook Form + Zod validation |
| `--features testing` | Add Vitest + Testing Library |

### Generated Structure (Next.js)

```
my-app/
├── app/
│   ├── layout.tsx        # Root layout with fonts
│   ├── page.tsx          # Home page
│   ├── globals.css       # Tailwind + CSS variables
│   └── api/health/route.ts
├── components/
│   ├── ui/               # Button, Input, Card
│   └── layout/           # Header, Footer, Sidebar
├── hooks/                # useDebounce, useLocalStorage
├── lib/                  # utils (cn), constants
├── types/                # TypeScript interfaces
├── tailwind.config.ts
├── next.config.js
└── package.json
```

## Component Generation

Generate React components with TypeScript, tests, and Storybook stories.

### Generator Options

| Option | Description |
|--------|-------------|
| `--type client` | Client component with 'use client' (default) |
| `--type server` | Async server component |
| `--type hook` | Custom React hook |
| `--with-test` | Include test file |
| `--with-story` | Include Storybook story |

## Bundle Analysis

Analyze package.json and project structure for bundle optimization opportunities.

### Heavy Dependencies to Replace

| Package | Size | Alternative |
|---------|------|-------------|
| moment | 290KB | date-fns (12KB) or dayjs (2KB) |
| lodash | 71KB | lodash-es with tree-shaking |
| axios | 14KB | Native fetch or ky (3KB) |
| jquery | 87KB | Native DOM APIs |
| @mui/material | Large | shadcn/ui or Radix UI |

## React Patterns

### Compound Components

```tsx
const Tabs = ({ children }) => {
  const [active, setActive] = useState(0);
  return (
    <TabsContext.Provider value={{ active, setActive }}>
      {children}
    </TabsContext.Provider>
  );
};

Tabs.List = TabList;
Tabs.Panel = TabPanel;
```

### Custom Hooks

```tsx
function useDebounce<T>(value: T, delay = 500): T {
  const [debouncedValue, setDebouncedValue] = useState(value);

  useEffect(() => {
    const timer = setTimeout(() => setDebouncedValue(value), delay);
    return () => clearTimeout(timer);
  }, [value, delay]);

  return debouncedValue;
}
```

## Next.js Optimization

### Server vs Client Components

Use Server Components by default. Add 'use client' only when you need:
- Event handlers (onClick, onChange)
- State (useState, useReducer)
- Effects (useEffect)
- Browser APIs

### Image Optimization

```tsx
import Image from 'next/image';

// Above the fold - load immediately
<Image
  src="/hero.jpg"
  alt="Hero"
  width={1200}
  height={600}
  priority
/>

// Responsive image with fill
<div className="relative aspect-video">
  <Image
    src="/product.jpg"
    alt="Product"
    fill
    sizes="(max-width: 768px) 100vw, 50vw"
    className="object-cover"
  />
</div>
```

## Accessibility Checklist

1. **Semantic HTML**: Use proper elements (`<button>`, `<nav>`, `<main>`)
2. **Keyboard Navigation**: All interactive elements focusable
3. **ARIA Labels**: Provide labels for icons and complex widgets
4. **Color Contrast**: Minimum 4.5:1 for normal text
5. **Focus Indicators**: Visible focus states

```tsx
// Accessible button
<button
  type="button"
  aria-label="Close dialog"
  onClick={onClose}
  className="focus-visible:ring-2 focus-visible:ring-blue-500"
>
  <XIcon aria-hidden="true" />
</button>
```

## Quick Reference

### Tailwind CSS Utilities

```tsx
import { cn } from '@/lib/utils';

<button className={cn(
  'px-4 py-2 rounded',
  variant === 'primary' && 'bg-blue-500 text-white',
  disabled && 'opacity-50 cursor-not-allowed'
)} />
```

### TypeScript Patterns

```tsx
// Props with children
interface CardProps {
  className?: string;
  children: React.ReactNode;
}

// Generic component
interface ListProps<T> {
  items: T[];
  renderItem: (item: T) => React.ReactNode;
}

function List<T>({ items, renderItem }: ListProps<T>) {
  return <ul>{items.map(renderItem)}</ul>;
}
```