@anthropic

Resources for writing internal communications — status reports, 3P updates, company newsletters, FAQs, incident reports. Provides company-preferred formats and examples.

Guide for creating high-quality MCP (Model Context Protocol) servers. Use when building MCP servers to integrate external APIs or services, in Python (FastMCP) or Node/TypeScript (MCP SDK).

Guidance for distinctive, intentional visual design when building or reshaping UI. Helps with aesthetic direction, typography, and making deliberate choices that avoid templated defaults.

Create new skills, modify existing ones, and measure skill performance. Supports creating from scratch, editing, running evals, benchmarking with variance analysis, and optimizing description triggers.

Interact with and test local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

Read, extract, merge, split, rotate, watermark, create, fill forms, encrypt/decrypt, and OCR PDF files. Use whenever a .pdf file is the primary input or output.

Create algorithmic art using p5.js with seeded randomness. Generates philosophy docs, interactive HTML viewers, and generative .js scripts. Use when creating generative art, flow fields, or particle systems.

Structured workflow for co-authoring documentation, proposals, technical specs, and decision docs. Guides through context gathering, refinement, and reader testing stages.

Create beautiful visual art in .png and .pdf documents using design philosophy. Use for posters, artwork, or static visual design. Generates original designs, never copying existing artists.

Create animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request GIFs for Slack like 'make a GIF of X doing Y for Slack.'

Create, read, edit, and manipulate Word documents (.docx). Handles formatting, tables of contents, tracked changes, comments, images, and conversion. Use when the deliverable is a .docx file.

Open, read, edit, fix, create, and convert spreadsheet files (.xlsx, .xlsm, .csv, .tsv). Handles formulas, formatting, charting, data cleaning, and tabular file conversion. Use when the deliverable is a spreadsheet.

Reference for the Claude API and Anthropic SDK — model IDs, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration. Read before working with Claude/Anthropic in any form.

Create, read, edit, and manipulate PowerPoint presentations (.pptx). Handles slide decks, pitch decks, templates, layouts, speaker notes, and comments. Use whenever a .pptx file is involved.

Applies Anthropic's official brand colors and typography to artifacts. Use when brand colors, style guidelines, visual formatting, or company design standards apply.

Toolkit for styling artifacts with curated themes — slides, docs, reports, HTML pages. Includes 10 pre-set themes with colors/fonts, or generates new themes on-the-fly.

Build elaborate multi-component claude.ai HTML artifacts using React, Tailwind CSS, and shadcn/ui. Use for complex artifacts requiring state management, routing, or component libraries.