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Anthropic's official reference implementation for Claude Agent Skills.
26 skills · Last updated: 2026-03-30 18:33 UTC · View on GitHub
This repository contains Anthropic's implementation of Agent Skills for Claude — a system that lets Claude dynamically load specialised instructions, scripts, and resources to improve performance on specific tasks.
Skills teach Claude how to complete tasks in a repeatable, reliable way: creating Word documents with brand guidelines, generating generative art, building MCP servers, automating web testing, and much more.
Disclaimer: Skills are provided for demonstration and educational purposes. While some capabilities may be available in Claude, implementations may differ from these reference skills. Always test in your own environment before relying on them for critical tasks.
| Page | Description |
|---|---|
| Skills Overview | Full table of every skill with descriptions and license info |
| Getting Started | How to install and activate skills in Claude Code, Claude.ai, and the API |
| Architecture | How skills work, SKILL.md format, script conventions, and plugin groups |
| Contributing | Step-by-step guide to authoring and submitting new skills |
| Skill | Summary |
|---|---|
| Algorithmic Art | — |
| Brand Guidelines | — |
| Canvas Design | — |
| Frontend Design | — |
| Theme Factory | — |
| Skill | Summary |
|---|---|
| Claude Api | — |
| Mcp Builder | — |
| Web Artifacts Builder | — |
| Webapp Testing | — |
| Skill | Summary |
|---|---|
| Doc Coauthoring | — |
| Internal Comms | — |
| Skill Creator | — |
| Skill | Summary |
|---|---|
| Docx | — |
| — | |
| Pptx | — |
| Xlsx | — |
| Skill | Summary |
|---|---|
| Ascii | — |
| Company Research | >- |
| Enrich | >- |
| Git Workflow | — |
| Linkedin Intel | >- |
| Tdd | — |
| Tooluniverse | Router skill for ToolUniverse tasks |
| Tooluniverse Deep Research | >- |
| Tu Llm | LLM-powered tool discovery that reasons about which ToolUniverse tools to combine for complex, multi-step scientific queries |
| Tufte Swiss Typography | > |
/plugin marketplace add anthropics/skills
/plugin install document-skills@anthropic-agent-skills
/plugin install example-skills@anthropic-agent-skills
Once installed, simply ask Claude to use a skill by mentioning it — e.g. "Use the PDF skill to extract the form fields from my-file.pdf".
All skills in this repository are already available to paid Claude.ai plans. See Using skills in Claude.
Use Anthropic's pre-built skills or upload custom ones via the API. See the Skills API Quickstart.
- What are skills?
- Using skills in Claude
- Creating custom skills
- Agent Skills specification
- Engineering blog post
This wiki is automatically generated from the repository source. Last updated: 2026-03-30 18:33 UTC.
Wiki auto-generated from https://github.com/d33disc/upstream_skills. Last updated: 2026-03-30 18:33 UTC.
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