ANTHROPIC SKILLS INDEX

Anthropic quietly ships official skills in a public repo — pre-built playbooks that load into Claude and make it execute like a specialist. Most people don't know the repo exists. This index gives you all 15, what they're for, and the exact link to grab each one.

HOW SKILLS WORK

A skill is a folder with a SKILL.md file inside — instructions Claude loads when the task matches. No fine-tuning, no API glue. You drop the folder in, and Claude picks the right playbook at the right moment on its own.

• Works in Claude Code, the Claude apps, and the API.
• Skills trigger automatically — you don't invoke them, you just ask for the task.
• The official repo: github.com/anthropics/skills

THE 15 OFFICIAL SKILLS

DOCUMENTS & FILES

• docx — create and edit Word documents: formatting, tracked changes, comments.
• pptx — build and modify PowerPoint decks, slide by slide.
• pdf — merge, split, fill forms, extract, watermark — anything PDF.
• doc-coauthoring — a structured workflow for writing long documents with Claude instead of prompting blind.

DESIGN & VISUAL

• canvas-design — polished posters, covers, and visual layouts as image or PDF.
• frontend-design — gives Claude real UI taste: layout, hierarchy, spacing that doesn't look AI-generated.
• algorithmic-art — generative art sketches: particles, flow fields, pattern systems.
• theme-factory — generate cohesive visual themes you can apply across outputs.
• slack-gif-creator — animated GIFs sized and optimized for Slack.

BUILD & SHIP

• mcp-builder — build MCP servers that connect Claude to your tools, the right way.
• web-artifacts-builder — multi-file interactive web apps as Claude artifacts.
• claude-api — an always-current reference so Claude writes correct Claude API code.
• skill-creator — the meta-skill: Claude builds new skills for your own workflows.

COMMS & BRAND

• brand-guidelines — load your brand system so every output ships on-brand by default.
• internal-comms — announcements, status updates, and team comms that sound human.

INSTALL IN 60 SECONDS

# Claude Code — drop any skill into your project
git clone https://github.com/anthropics/skills
cp -r skills/skills/<skill-name> .claude/skills/

# Or install for every project on your machine
cp -r skills/skills/<skill-name> ~/.claude/skills/

Start with skill-creator. It teaches Claude to build custom skills for your exact workflows — the other 14 show you the ceiling.

The play: pick the two skills closest to your daily work, install them, and run one real task through each today. Then build your own with skill-creator.