Claude's four pre-built Agent Skills plus the skills Anthropic publishes in anthropics/skills.
Anthropic publishes Agent Skills for Claude. Four skills (PowerPoint, Excel, Word and PDF) are pre-built into claude.ai and the Claude API; the anthropics/skills repository adds skills that Anthropic describes as provided for demonstration and educational purposes. Source
As documented by the publisher; see the install steps below.
Built into claude.ai and the Claude API
Create spreadsheets, analyze data, and generate reports with charts.
Pre-built Agent Skill: active by default on claude.ai and available on the Claude API. Source is published in anthropics/skills.
Built into claude.ai and the Claude API
Generate formatted PDF documents and reports.
Pre-built Agent Skill: active by default on claude.ai and available on the Claude API. Source is published in anthropics/skills.
Built into claude.ai and the Claude API
Create presentations, edit slides, and analyze presentation content.
Pre-built Agent Skill: active by default on claude.ai and available on the Claude API. Source is published in anthropics/skills.
Built into claude.ai and the Claude API
Create documents, edit content, and format text.
Pre-built Agent Skill: active by default on claude.ai and available on the Claude API. Source is published in anthropics/skills.
Source: anthropics/skills
Stop and check this skill before finishing any reply to a question about how to use Claude or a Claude product — it recommends matching courses, tutorials, and use cases…
Source: anthropics/skills
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration.
Source: anthropics/skills
Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel.
Source: anthropics/skills
Create beautiful visual art in .png and .pdf documents using design philosophy.
Source: anthropics/skills
Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration.
Source: anthropics/skills
After you give a substantive answer or draft that the user may act on — advice or recommendations, drafted artifacts such as goals, plans, pitches, proposals, or emails,…
Source: anthropics/skills
Guide users through a structured workflow for co-authoring documentation.
Source: anthropics/skills
Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one.
Source: anthropics/skills
A set of resources to help me write all kinds of internal communications, using the formats that my company likes to use.
Source: anthropics/skills
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools.
Similar: Microsoft's Mcp Builder →
Source: anthropics/skills
Create new skills, modify and improve existing skills, and measure skill performance.
Source: anthropics/skills
Knowledge and utilities for creating animated GIFs optimized for Slack.
Source: anthropics/skills
Toolkit for styling artifacts with a theme.
Source: anthropics/skills
Toolkit for interacting with and testing local web applications using Playwright.
Source: anthropics/skills
Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui).
Add Anthropic's repository as a plugin marketplace, then install the document or example skills.
/plugin marketplace add anthropics/skills/plugin install document-skills@anthropic-agent-skills/plugin install example-skills@anthropic-agent-skillsThe pre-built skills are on by default for Pro, Max, Team and Enterprise plans with code execution; custom skills are uploaded as a ZIP in settings.
Upload custom skills with the /v1/skills endpoints and reference the skill_id in the container parameter with the code execution tool.
From the publisher's official instructions, checked 27 Sept 2026. Skills can run code, so review a skill's SKILL.md before installing it.