116 documented

Skills · plugins · MCP · rules114 official

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Skill Apache-2.0

Algorithmic Art

by Anthropic

Creates generative p5.js art with seeded randomness and an interactive parameter viewer, for code-art requests.

Does
5 things
Install
4 steps
Works with
Claude Code

brand-guidelines

by Anthropic

Applies Anthropic's official brand colours and typography to artifacts.

Does
3 things
Install
4 steps
Works with
Claude Code
Skill Apache-2.0

Canvas Design

by Anthropic

Creates original posters and static art as PNG or PDF from a written design philosophy.

Does
5 things
Install
4 steps
Works with
Claude Code
Skill Apache-2.0

Claude Academy guide

by Anthropic

Recommends a matching Claude Academy course, tutorial or use case after Claude answers a how-to-use-Claude question.

Does
5 things
Install
4 steps
Works with
Claude Code

claude-api

by Anthropic

Reference for building with the Claude API / Anthropic SDK: model ids, params, streaming, tool use, MCP, agents, caching, migration.

Does
4 things
Install
4 steps
Works with
Claude Code
Skill Apache-2.0

Discernment Nudge

by Anthropic

Appends 2-3 short follow-up questions to substantive answers so users check facts, reasoning and missing context.

Does
5 things
Install
4 steps
Works with
Claude Code

doc-coauthoring

by Anthropic

Structured workflow for co-authoring docs, proposals, specs and decision docs with context gathering, refinement and reader testing.

Does
4 things
Install
4 steps
Works with
Claude Code
Skill Proprietary (LICENSE.txt in skill folder

docx

by Anthropic

Create, read, edit Word .docx/.dotx files, including tracked changes, comments, images and find-replace.

Does
3 things
Install
4 steps
Works with
Claude Code

frontend-design

by Anthropic

Guidance for distinctive, non-templated UI design: aesthetic direction, typography and layout choices.

Does
4 things
Install
4 steps
Works with
Claude Code
Skill Apache-2.0

Internal Comms

by Anthropic

Helps write internal communications such as 3P updates, newsletters, FAQs, status reports and incident reports.

Does
5 things
Install
4 steps
Works with
Claude Code

mcp-builder

by Anthropic

Guide for building high-quality MCP servers in Python (FastMCP) or Node/TypeScript so LLMs can use external APIs.

Does
4 things
Install
4 steps
Works with
Claude Code
Skill Proprietary (LICENSE.txt in skill folder

pdf

by Anthropic

Read, extract, merge, split, rotate, watermark, create, fill, encrypt and OCR PDF files.

Does
3 things
Install
4 steps
Works with
Claude Code
Skill Proprietary (LICENSE.txt in skill folder

pptx

by Anthropic

Create, read, edit .pptx/.potx decks: templates, layouts, speaker notes, comments, split and combine.

Does
3 things
Install
4 steps
Works with
Claude Code

skill-creator

by Anthropic

Create, edit and benchmark skills: draft, run test prompts, review results, and optimize descriptions for triggering.

Does
4 things
Install
4 steps
Works with
Claude Code
Skill Apache-2.0

Slack GIF Creator

by Anthropic

Toolkit and guidance for making animated GIFs that meet Slack size limits, built with Python and PIL.

Does
5 things
Install
4 steps
Works with
Claude Code

theme-factory

by Anthropic

Apply one of 10 preset font/colour themes (or a generated one) to slides, docs, reports or HTML pages.

Does
4 things
Install
4 steps
Works with
Claude Code
Skill Apache-2.0

Web Artifacts Builder

by Anthropic

Scripts and guidance to build multi-component React artifacts and bundle them into a single HTML file.

Does
5 things
Install
4 steps
Works with
Claude Code

webapp-testing

by Anthropic

Toolkit for testing local web apps with Playwright: verify frontend behaviour, debug UI, capture screenshots and logs.

Does
4 things
Install
4 steps
Works with
Claude Code
Skill Proprietary (LICENSE.txt in skill folder

xlsx

by Anthropic

Open, create, edit and clean spreadsheets (.xlsx, .xlsm, .csv, .tsv) with formulas, formatting and charts.

Does
3 things
Install
4 steps
Works with
Claude Code