Agent Skills
Instruction packs that give your AI agent know-how. Three different kinds — pick the right one below.
✦ Standalone skills2,933
Self-contained. Install one into any project and it works on its own — no other software needed.
🧰 Tool add-ons726
Come bundled with a specific tool and only work together with it — they teach your agent how to operate that tool.
web-artifacts-builder
✓★ 158,100by anthropic
Multi-component React artifacts for Claude with bundling, state management, and shadcn/ui component library. Scaffolds React 18 + TypeScript projects with Vite, Tailwind CSS, and 40+ pre-installed shadcn/ui components via automated initialization script Bundles complete artifacts into single self-contained HTML files with inlined assets, ready for Claude artifact display Includes design guidance to avoid common "AI slop" patterns like excessive centering, purple gradients, and uniform...
breakdown-test
✓★ 36,200by github
Comprehensive test planning and quality assurance documentation generator aligned with ISTQB and ISO 25010 standards. Generates three core deliverables: test strategy, test issues checklist, and QA plan from feature PRDs and technical breakdowns Applies ISTQB test design techniques (equivalence partitioning, boundary value analysis, decision table testing, state transition testing) and test types (functional, non-functional, structural, change-related) Maps all eight ISO 25010 quality...
webapp-testing
✓★ 36,200by github
Browser automation and testing toolkit for local web applications using Playwright. Supports core browser interactions including navigation, form filling, clicking, dropdown selection, and dialog handling Includes verification capabilities for element presence, text content, visibility, URLs, and responsive design across viewports Provides debugging tools: screenshot capture, console log inspection, network request monitoring, and error handling patterns Works with Node.js environments and...
mcp-builder
✓★ 2,700by microsoft
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when…
mcp-builder
✓★ 2,700by microsoft
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when…