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Found 865 Skills
CCXT cryptocurrency exchange library for TypeScript and JavaScript developers (Node.js and browser). Covers both REST API (standard) and WebSocket API (real-time). Helps install CCXT, connect to exchanges, fetch market data, place orders, stream live tickers/orderbooks, handle authentication, and manage errors. Use when working with crypto exchanges in TypeScript/JavaScript projects, trading bots, arbitrage systems, or portfolio management tools. Includes both REST and WebSocket examples.
Build checkout and payment experiences using Primer's web components. Use this skill when implementing payment flows, checkout pages, card forms, or integrating Primer SDK into React, Next.js, or vanilla JavaScript applications. Covers component usage, React integration patterns, stable object references, event handling, SSR support, and CSS theming.
Zero-build frontend development with CDN-loaded React, Tailwind CSS, and vanilla JavaScript. Use when building static web apps without bundlers, creating Leaflet maps, integrating Google Sheets as database, or developing browser extensions. Covers patterns from rosen-frontend, NJCIC map, and PocketLink projects.
Audit and improve JavaScript/TypeScript documentation including JSDoc comments (@param, @returns, @template, @example), comment markers (TODO, FIXME, HACK), and code comment quality. Use when asked to 'add JSDoc', 'document this function', 'audit documentation', 'fix comments', 'add TODO/FIXME markers', or 'improve code documentation'.
Guide for implementing Turborepo - a high-performance build system for JavaScript and TypeScript monorepos. Use when setting up monorepos, optimizing build performance, implementing task pipelines, configuring caching strategies, or orchestrating tasks across multiple packages.
Frontend website debugging toolkit using Chrome DevTools Protocol with Playwright/WebKit fallbacks. Use this skill when: (1) Debugging CSS, HTML, or JavaScript issues on a webpage, (2) Taking screenshots to verify visual changes, (3) Inspecting DOM structure or console errors, (4) Testing responsive layouts, (5) Extracting selectors for automation, (6) Self-debugging frontend work Claude has created, (7) User says "debug this page", "check my site", "why doesn't this look right", or "fix the frontend". Supports Chrome (primary) and Safari/WebKit (via Playwright). Designed for agent-driven debugging loops.
Web page and website scraping with Firecrawl API. Use this skill when scraping web articles, blog posts, documentation pages, paywalled content, or JavaScript-heavy sites. Triggers on requests to scrape websites, extract article content, convert pages to markdown, or handle anti-bot protection.
WCAG 2.2 AA accessibility audit and implementation for TYPO3 v12–v14 (v14 preferred). Covers Fluid template patterns, PHP middleware, JavaScript enhancements, Content Element accessibility, form accessibility, and a full go-live checklist. Use when working with accessibility, a11y, wcag, aria, screen reader, keyboard navigation, focus management, color contrast, alt text, semantic html, skip link, or accessible forms in TYPO3.
Coding conventions enforcement agent. Auto-invoked when writing new code, reviewing code quality, adding headers, or checking documentation compliance across Python, TypeScript/JavaScript, and C#/.NET.
Orchestrates TypeScript SDK integration for Aptos dApps. Routes to granular skills for specific tasks (client setup, accounts, transactions, view functions, types, wallet adapter). Use this skill for fullstack dApp integration or when multiple SDK concerns are involved. Triggers on: 'typescript sdk', 'ts-sdk', 'aptos sdk', 'SDK setup', 'interact with contract', 'call aptos', 'aptos javascript', 'frontend integration', 'fullstack'.
Teaches Vue render functions and JSX for programmatic template creation. Use when templates are too limiting and you need the full power of JavaScript to construct component output dynamically.
Use when building Elixir applications that need to evaluate JavaScript or TypeScript code, load ES modules, import npm/jsr packages, call JS functions from Elixir, or use V8 snapshots. Triggers on Denox, deno_core, Rustler NIF JS runtime, TypeScript transpilation in Elixir.