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Found 550 Skills
Expert skill for building web-based game engines and games using HTML5, Canvas, WebGL, and JavaScript. Use when asked to create games, build game engines, implement game physics, handle collision detection, set up game loops, manage sprites, add game controls, or work with 2D/3D rendering. Covers techniques for platformers, breakout-style games, maze games, tilemaps, audio, multiplayer via WebRTC, and publishing games.
Prevent Ethereum hashing bugs in JavaScript and TypeScript. Node's sha3-256 is NIST SHA3, not Ethereum Keccak-256, and silently breaks selectors, signatures, storage slots, and address derivation.
Development conventions and patterns for everything-claude-code. JavaScript project with conventional commits.
Write or review JavaScript concept documentation pages for the 33 JavaScript Concepts project, following strict structure and quality guidelines
Verify technical accuracy of JavaScript concept pages by checking code examples, MDN/ECMAScript compliance, and external resources to prevent misinformation
Guides Claude through configuring JavaScript frontend frameworks for Tauri v2 desktop applications, including Next.js, Nuxt, Qwik, SvelteKit, and Vite with proper SSG setup, tauri.conf.json settings, and framework-specific configurations.
Jest testing best practices for JavaScript and TypeScript applications, covering test structure, mocking, and assertion patterns.
Expert guidance for Playwright end-to-end testing with TypeScript and JavaScript best practices
JavaScript performance optimization guidelines. Use when writing, reviewing, or refactoring JavaScript/TypeScript code to ensure optimal performance patterns. Triggers on tasks involving loops, data structures, DOM manipulation, or general JS optimization.
Comprehensive security audit and vulnerability detection for JavaScript/TypeScript applications following OWASP Top 10. Use when (1) Users say 'audit security', 'check for vulnerabilities', 'security review', 'implement authentication', 'secure this code', (2) Adding authentication, API endpoints, file uploads, or handling user input, (3) Working with secrets, credentials, or sensitive data, (4) Implementing payment features or blockchain integrations, (5) Conducting pre-deployment security checks. Audits for: hardcoded secrets, injection vulnerabilities, XSS/CSRF, broken access control, insecure authentication, rate limiting, dependency vulnerabilities, sensitive data exposure.
Browser automation using Playwright MCP for web testing, UI verification, and form automation. Use when navigating websites, clicking elements, filling forms, taking screenshots, or testing web applications. Supports iframe operations and complex JavaScript execution.
Collect DTMF input and speech from callers using standard gather or AI-powered gather. Build interactive voice menus and AI voice assistants. This skill provides JavaScript SDK examples.