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

Claude15 official skills

1. DDocuments & filesdocx, pptx, pdf, doc-coauthoring
2. DDesign & visualcanvas-design, frontend-design and 3 more
3. BBuild & shipmcp-builder, skill-creator and 2 more
4. CComms & brandbrand-guidelines, internal-comms

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

1. 01Clone from GitHubgit clone the anthropics/skills repo
2. 02Copy a skill folderInto .claude/skills/ or ~/.claude/skills/
3. 03Ask Claude for the taskThe skill triggers on its own

# 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.