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.

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.

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.

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).