Anthropic Agent Skills
FeaturedOfficialby Anthropic
The official public repository for Agent Skills from Anthropic. Every skill is a self-contained folder with a SKILL.md file that teaches Claude how to finish a specific task the same way every time — creating docs in your company's voice, generating MCP servers, editing PDFs, producing design assets. The repo sits at roughly 120,000 stars, making it one of the most-starred AI repositories of 2026. The skills ship in four buckets. Creative covers art, music, and design generators. Development covers web app testing, MCP server scaffolding, and dev tooling. Enterprise covers brand-aligned communications and standardized workflows. Document Skills — the most-used category — handles PDF, DOCX, PPTX, and XLSX creation and editing. Each folder is atomic. You install what you need. Installation is one command inside Claude Code: /plugin marketplace add anthropics/skills. Then you install a pack with /plugin install document-skills@anthropic-agent-skills and call it by mentioning it — "use the PDF skill to extract form fields from this file." Claude API users upload skills via the Skills API. Claude.ai lets you upload custom skills or activate the pre-built ones. Pair this with GitHub's MCP server for a full agent toolkit, and check our Claude Code coverage plus the AI tools directory for integration patterns.
Installation
Key Features
- ✓Official source of truth for Anthropic-authored skills
- ✓Four categories: Creative, Development, Enterprise, Document
- ✓Document skills for PDF, DOCX, PPTX, XLSX — the most-used category
- ✓Claude Code marketplace integration with one-line install
- ✓Works across Claude Code, Claude API, and Claude.ai
- ✓Skill-creator skill — meta-tooling to generate new skills
- ✓MIT-style license on the repo, permissive for derivative skills
- ✓Regular updates from the Anthropic team
- ✓Examples covering real enterprise workflows
- ✓SKILL.md format is open — other vendors can ship compatible skills
Use Cases
- →Generating branded PDFs and sales decks in Claude
- →Scaffolding new MCP servers from a prompt
- →Extracting form fields or tables from uploaded documents
- →Producing design assets that match a company style guide
- →Testing web applications with a repeatable checklist
- →Creating and maintaining your own internal skill library