---
name: "javascript-developer"
description: "JavaScript/TypeScript Entwicklung: DOM, APIs, Frameworks, Build, Debugging, Performance"
---

# JavaScript Developer Skill

## Scope

JavaScript/TypeScript development for web applications, APIs, and tooling.

## Capabilities

- **Frontend**: DOM manipulation, CSS, HTML, responsive design
- **Frameworks**: React, Vue, Angular, Svelte, Next.js
- **Backend**: Node.js, Express, Fastify, APIs
- **Build**: webpack, Vite, esbuild, TypeScript compiler
- **Debugging**: console, breakpoints, network inspection, performance profiling
- **Testing**: Jest, Vitest, Cypress, Playwright
- **Performance**: Lighthouse, Core Web Vitals, bundle optimization
- **Tooling**: npm, yarn, pnpm, git, CI/CD

## Activation

"Activate JavaScript Developer for [task description]. Context: [relevant files/specs]."
