anthropics / skills
✓ Official★ 158,100A skill package that teaches your agent 20 capabilities — every one documented and browsable below, no GitHub required · by Anthropic.
Each skill below is one capability this package teaches your agent. Install the whole package, or open a skill to install just that one.
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations. license: Complete terms in LICENSE.txt
5 files — installable on its own
Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts. license: Complete terms in LICENSE.txt
6 files — installable on its own
Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply. license: Complete terms in LICENSE.txt
2 files — installable on its own
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations. license: Complete terms in LICENSE.txt
50 files — installable on its own
Claude API integration for building LLM-powered applications across Python, TypeScript, Java, Go, Ruby, C#, and PHP. Defaults to Claude Opus 4.6 with adaptive thinking and streaming; supports tool use, structured outputs, batches, and file uploads through a single /v1/messages endpoint Language detection automatically routes you to the correct SDK documentation; includes decision trees for choosing between single API calls, workflows with tool use, and agentic loops Tool runner (beta in most...
50 files — installable on its own
Creative Skills - Discover reusable skills for AI coding agents like Claude Code, Codex, and more. Each skill is a package of instructions and code that teaches your agent to perform specialized tasks and automate complex workflows.
5 files — installable on its own
Structured workflow for collaboratively authoring documentation, proposals, specs, and similar content. Guides users through three stages: Context Gathering (closing knowledge gaps), Refinement & Structure (building sections iteratively), and Reader Testing (validating the doc works for fresh readers) Supports integration with shared documents, team channels, and templates to pull in context directly when connectors are available Uses brainstorming and curation cycles for each section, with...
1 file — installable on its own
Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. When Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks" license: Proprietary. LICENSE.txt has complete terms
50 files — installable on its own
Generates distinctive, production-grade frontend interfaces that avoid generic AI aesthetics.
2 files — installable on its own
A set of resources to help me write all kinds of internal communications, using the formats that my company likes to use. Claude should use this skill whenever asked to write some sort of internal communications (status reports, leadership updates, 3P updates, company newsletters, FAQs, incident reports, project updates, etc.). license: Complete terms in LICENSE.txt
7 files — installable on its own
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK). license: Complete terms in LICENSE.txt
12 files — installable on its own
Official Skills - Discover reusable skills for AI coding agents like Claude Code, Codex, and more. Each skill is a package of instructions and code that teaches your agent to perform specialized tasks and automate complex workflows.
5 files — installable on its own
Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale. license: Proprietary. LICENSE.txt has complete terms
13 files — installable on its own
Presentation creation, editing, and analysis. When Claude needs to work with presentations (.pptx files) for: (1) Creating new presentations, (2) Modifying or editing content, (3) Working with layouts, (4) Adding comments or speaker notes, or any other presentation tasks" license: Proprietary. LICENSE.txt has complete terms
50 files — installable on its own
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations. license: Complete terms in LICENSE.txt
23 files — installable on its own
Toolkit for creating animated GIFs optimized for Slack, with validators for size constraints and composable animation primitives. This skill applies when users request animated GIFs or emoji animations for Slack from descriptions like "make me a GIF for Slack of X doing Y". license: Complete terms in LICENSE.txt
8 files — installable on its own
Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact that has been creating, or can generate a new theme on-the-fly. license: Complete terms in LICENSE.txt
14 files — installable on its own
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...
6 files — installable on its own
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs. license: Complete terms in LICENSE.txt
8 files — installable on its own
Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas" license: Proprietary. LICENSE.txt has complete terms
50 files — installable on its own
Note: This repository contains Anthropic's implementation of skills for Claude. For information about the Agent Skills standard, see agentskills.io.
Skills
Skills are folders of instructions, scripts, and resources that Claude loads dynamically to improve performance on specialized tasks. Skills teach Claude how to complete specific tasks in a repeatable way, whether that's creating documents with your company's brand guidelines, analyzing data using your organization's specific workflows, or automating personal tasks.
For more information, check out:
- What are skills?
- Using skills in Claude
- How to create custom skills
- Equipping agents for the real world with Agent Skills
About This Repository
This repository contains skills that demonstrate what's possible with Claude's skills system. These skills range from creative applications (art, music, design) to technical tasks (testing web apps, MCP server generation) to enterprise workflows (communications, branding, etc.).
Each skill is self-contained in its own folder with a SKILL.md file containing the instructions and metadata that Claude uses. Browse through these skills to get inspiration for your own skills or to understand different patterns and approaches.
Many skills in this repo are open source (Apache 2.0). We've also included the document creation & editing skills that power Claude's document capabilities under the hood in the skills/docx, skills/pdf, skills/pptx, and skills/xlsx subfolders. These are source-available, not open source, but we wanted to share these with developers as a reference for more complex skills that are actively used in a production AI application.
Disclaimer
These skills are provided for demonstration and educational purposes only. While some of these capabilities may be available in Claude, the implementations and behaviors you receive from Claude may differ from what is shown in these skills. These skills are meant to illustrate patterns and possibilities. Always test skills thoroughly in your own environment before relying on them for critical tasks.
Skill Sets
- ./skills: Skill examples for Creative & Design, Development & Technical, Enterprise & Communication, and Document Skills
- ./spec: The Agent Skills specification
- ./template: Skill template
Try in Claude Code, Claude.ai, and the API
Claude Code
You can register this repository as a Claude Code Plugin marketplace by running the following command in Claude Code:
/plugin marketplace add anthropics/skillsThen, to install a specific set of skills:
- Select
Browse and install plugins - Select
anthropic-agent-skills - Select
document-skillsorexample-skills - Select
Install now
Alternatively, directly install either Plugin via:
/plugin install document-skills@anthropic-agent-skills
/plugin install example-skills@anthropic-agent-skillsAfter installing the plugin, you can use the skill by just mentioning it. For instance, if you install the document-skills plugin from the marketplace, you can ask Claude Code to do something like: "Use the PDF skill to extract the form fields from path/to/some-file.pdf"
Claude.ai
These example skills are all already available to paid plans in Claude.ai.
To use any skill from this repository or upload custom skills, follow the instructions in Using skills in Claude.
Claude API
You can use Anthropic's pre-built skills, and upload custom skills, via the Claude API. See the Skills API Quickstart for more.
Creating a Basic Skill
Skills are simple to create - just a folder with a SKILL.md file containing YAML frontmatter and instructions. You can use the template-skill in this repository as a starting point:
---
name: my-skill-name
description: A clear description of what this skill does and when to use it
---
# My Skill Name
[Add your instructions here that Claude will follow when this skill is active]
## Examples
- Example usage 1
- Example usage 2
## Guidelines
- Guideline 1
- Guideline 2The frontmatter requires only two fields:
name- A unique identifier for your skill (lowercase, hyphens for spaces)description- A complete description of what the skill does and when to use it
The markdown content below contains the instructions, examples, and guidelines that Claude will follow. For more details, see How to create custom skills.
Partner Skills
Skills are a great way to teach Claude how to get better at using specific pieces of software. As we see awesome example skills from partners, we may highlight some of them here:
- Notion - Notion Skills for Claude
Install the whole package (20 skills):
npx skills add https://github.com/anthropics/skillsOr install a single skill:
npx skills add https://github.com/anthropics/skills --skill <name>Pick the skill name from the Skills tab — each entry there installs independently.