Skills by Anthropic

Walks you through drafting a doc in three stages: gather context, build it section by section, then test it on a fresh reader.

Create, edit, read, and annotate .docx and .dotx files, with rendering checks and tracked-change validation.

Read, extract, merge, split, rotate, watermark, encrypt, and create PDF files with Python and CLI tools.

Create, edit, and read .pptx and .potx decks with pptxgenjs scripts, raw OOXML edits, and validation.

Create, edit, and verify .xlsx, .xlsm, .csv, and .tsv files with real formulas, formatting, and a mandatory recalculation pass.

Turns a prompt into a generative art movement, then into a runnable p5.js sketch with seed controls.

Draft, test, and iterate on agent skills, with evals and benchmarks to measure how well they work.

Turns a brief into a written design philosophy and a finished poster or art piece as .png or .pdf.

Build MCP servers in TypeScript or Python that let LLMs call external APIs through well-designed tools.

Build Slack-ready animated GIFs with PIL, using Slack size/FPS/color limits and validation helpers.

Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defau

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Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser l

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 manag

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 t

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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

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 com