anthropics

Toolkit for styling artifacts with a theme. It offers 10 pre-set themes with colors/fonts, applicable to various artifacts like slides, docs, or HTML pages, or allows generating new themes on-the-fly.

Knowledge and utilities for creating animated GIFs optimized for Slack. It provides constraints, validation tools, and animation concepts, useful when users request animated GIFs for Slack like "make me a GIF of X doing Y for Slack".

Create new skills, modify and improve existing ones, and measure their performance. Use this skill for developing, editing, optimizing, testing, and benchmarking skills, as well as refining their descriptions for better triggering.

Guides users through a structured workflow for co-authoring documentation, proposals, technical specs, and similar content. It helps efficiently transfer context, refine content through iteration, and verify its effectiveness for readers.

Creates distinctive, production-grade frontend interfaces with high design quality, generating creative, polished code and UI design that avoids generic AI aesthetics. Use for building web components, pages, and applications, or for styling/beautifying web UIs.

Creates original algorithmic art using p5.js, seeded randomness, and interactive parameter exploration. Use this for requests involving generative art, flow fields, or particle systems, ensuring no copyright infringement.

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.

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).

This skill is for creating, reading, editing, or manipulating Word documents (.docx files), including tasks like professional formatting, content extraction, reorganization, and image management.

Replace with a description of the skill and when Claude should use it.

Use this skill for any operation with PDF files, including reading, extracting text/tables, combining, splitting, rotating pages, adding watermarks, creating, filling forms, encrypting/decrypting, extracting images, and OCR to make them searchable.

Resources to assist in writing various internal communications, adhering to company-preferred formats. Claude should utilize this skill for status reports, leadership updates, newsletters, FAQs, and other internal documents.

Use this skill for any task involving .pptx files, including creating, editing, reading, extracting text, combining, or splitting presentations.

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.

Use this skill for any task involving spreadsheet files as primary input or output, such as opening, reading, editing, fixing, creating, or converting .xlsx, .xlsm, .csv, or .tsv files.

Applies Anthropic's official brand colors and typography to any artifact that may benefit from its look-and-feel. Use it when brand colors, style guidelines, visual formatting, or company design standards apply.

Build, debug, and optimize Claude API / Anthropic SDK apps. Apps built with this skill should include prompt caching. Also handles migrating existing Claude API code between Claude model versions (4.5 → 4.6, 4.6 → 4.7, retired-model replacements). TRIGGER when: code imports `anthropic`/`@anthropic-ai/sdk`; user asks for the Claude API, Anthropic SDK, or Managed Agents; user adds/modifies/tunes a C

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.