Anthropic's most intelligent model combining maximum capability with practical performance, featuring unique effort parameter control and exceptional long-horizon coding efficiency.

The world's best coding model and strongest agent builder, featuring state-of-the-art performance on software engineering benchmarks with 200k-1M token context window.

Anthropic's official brand guidelines skill with brand assets and design standards, enabling Claude to automatically follow corporate brand consistency.

Anthropic's official DOCX skill for comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction.

Anthropic's official skill for creating distinctive, production-grade frontend interfaces with high design quality for web components, pages, and applications.

Anthropic's official skill providing resources for writing internal communications like status reports, leadership updates, company newsletters, FAQs, and incident reports.

Anthropic's official guide for creating high-quality MCP (Model Context Protocol) servers in Python (FastMCP) or Node/TypeScript to enable LLMs to interact with external services.

Anthropic's official PDF processing skill that teaches Claude Agent how to extract text, create, merge, or split PDF documents.

Anthropic's official skill providing knowledge and utilities for creating animated GIFs optimized for Slack with proper dimensions, file sizes, and creative animations.

Anthropic's official toolkit for styling artifacts with 10 pre-set professional themes or generating custom themes on-the-fly for slides, docs, and HTML.

Anthropic's official suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using React, Tailwind CSS, and shadcn/ui.

Anthropic's official toolkit for interacting with and testing local web applications using Playwright for frontend functionality verification and debugging.

Anthropic's official skill for comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization.