ANAnthropic GitHub Repository Atlas

A general-purpose Claude Code action for GitHub PRs and issues that can answer questions and implement code changes. This action intelligently detects when to activate based on your workflow context—whether responding to @claude mentions, issue assignments, or executing...

Python SDK for Claude Agent. See the Claude Agent SDK documentation for more information.

The Claude Agent SDK enables you to programmatically build AI agents with Claude Code's capabilities. Create autonomous agents that can understand codebases, edit files, run commands, and execute complex workflows.

This repository is an automated mirror of the base-action directory from anthropics/claude-code-action.

The Claude SDK for Python provides access to the Claude API from Python applications.

The Claude SDK for TypeScript provides access to the Claude API from server-side TypeScript or JavaScript applications.

The Claude SDK for Go provides access to the Claude API from Go applications.

ant is the official CLI for the Claude Platform. It puts the Claude API in your terminal — send messages, manage agents and sessions, upload files, and script against every API endpoint.

The Claude SDK for Ruby provides access to the Claude API from Ruby applications.

The Claude SDK for Java provides access to the Claude API from Java applications.

The Claude SDK for C provides access to the Claude API from C applications.

Use Claude as a server-side language model through Apple's Foundation Models framework. The package conforms Claude to the framework's LanguageModel protocol, so you drive it with the same LanguageModelSession API you use for Apple's on-device model — respond(to:), streaming,...

Skills are folders of instructions, scripts, and resources that Claude loads dynamically to improve performance on specialized tasks. Skills teach Claude how to complete specific tasks in a repeatable way, whether that's creating documents with your company's brand...

Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows -- all through natural language commands. Use it in your terminal, IDE, or...

Plugins can be installed directly from this marketplace via Claude Code's plugin system.

Plugins that turn Claude into a specialist for your role, team, and company. Built for Claude Cowork, also compatible with Claude Code.

A reference implementation for autonomous vulnerability discovery and remediation with Claude, based on our learnings from partnering with security teams at several organizations since launching Claude Mythos Preview. For a write up of these learnings along with best...

Workshop materials. Not maintained and not accepting contributions.

A Claude Code skill that helps a technical founder build whatever they want on Claude Managed Agents (CMA) — an internal worker, a piece of their product, a customer-facing agent. It interviews you about what you want to build, scopes a v0, launches it in your own account,...

Claude Code's built-in /goal command gives you a generator/evaluator loop out of the box: set a completion condition and a separate fast model checks it after every turn until it's met. This repo ships the same underlying primitives as short, readable hooks and a subagent, so...

A read-only mirror of the community plugin marketplace. The .claude-plugin/marketplace.json file here is the list of community plugins available to install. It is synced nightly from Anthropic's internal review pipeline.

A starter kit for running large-scale language migrations with Claude Code: the prompts, templates, and scripts behind the process described in How Anthropic runs large-scale code migrations with Claude Code .

The Claude Cookbooks provide code and guides designed to help developers build with Claude, offering copy-able code snippets that you can easily integrate into your own projects.

Claude Quickstarts is a collection of projects designed to help developers quickly get started with building applications using the Claude API. Each quickstart provides a foundation that you can easily build upon and customize for your specific needs.

A gallery of standalone HTML examples that accompany the blog post on using HTML as a flexible output format. Each file is a self-contained .html page (no build step, no dependencies) demonstrating a different use case — from code review and design systems to slide decks,...

Reference agents, skills, and data connectors for the financial-services workflows we see most — investment banking, equity research, private equity, and wealth management.

Reference agents, skills, and data connectors for the legal workflows we see most — in-house commercial, privacy, product, corporate, employment, litigation, regulatory, AI governance, IP, and the learning side of the practice (law school clinics and students).

This marketplace provides MCP (Model Context Protocol) servers and skills for life sciences tools. Install these plugins to access specialized research and analysis tools directly within Claude Code.

One plugin for healthcare work: skills for payer, provider, pharma, and general engineering, with hosted MCP servers connected. Skills only load when relevant, so the bundle stays cheap.

Companion code for Verbalizable Representations Form a Global Workspace in Language Models .

A pure-Rust Protocol Buffers implementation with first-class protobuf editions support. Written by Claude and friends

This repository is the communication hub for MCP (Model Context Protocol) integration in Claude.ai . Use it to stay updated on technical changes and to report bugs or request features.