anthropic Tools

Agents is a multi-harness plugin marketplace for AI coding tools like Claude Code, Cursor, and GitHub Copilot. It solves the problem of fragmented, tool-specific agent ecosystems by providing a central hub for discovering and using skills across different platforms. This project is for developers and teams who use multiple AI coding assistants and want a consistent, extensible set of capabilities available everywhere they work.

Headroom is a context optimization layer that compresses tool outputs, logs, files, and RAG chunks before they reach an LLM. It solves the problem of high token costs and slow response times caused by verbose agent outputs and retrieved data. It's for developers and teams building AI agents, coding assistants, and RAG applications who want to reduce costs and latency without changing model behavior.

LiteLLM is an open-source AI Gateway and Python SDK that provides a single, unified interface to call over 100 different LLM APIs (like OpenAI, Anthropic, and Bedrock) using the OpenAI format. It solves the problem of API fragmentation and complexity by offering consistent calling patterns, built-in load balancing, cost tracking, and logging across all providers. It's designed for developers and organizations building AI applications who need reliability, observability, and flexibility without being locked into a single vendor.

pstack-claude provides rigorous, multi-agent workflow implementations of Poteto's pstack methodology, translated for Claude, Codex, Pi, and other major AI coding assistants. It solves the problem of vendor lock-in and inconsistent agent behavior by offering standardized, high-quality workflows across different AI harnesses. This repository is for developers and teams who want reliable, reproducible AI-assisted coding patterns that work seamlessly whether they're using Claude, Gemini, GitHub Copilot, or other AI coding tools.

Strands Harness is an SDK for building, controlling, and deploying production-ready AI agents. It provides a fully assembled, state-of-the-art agent harness with optimized defaults for tools, memory, and context management, so developers can focus on their agent's unique logic instead of infrastructure. It's designed for developers and teams building reliable, controllable AI agents that need to go from prototype to production.

Claude Code Templates is a CLI tool and component library that provides ready-to-use configurations and templates for Claude Code projects. It solves the problem of repetitive setup and configuration by offering a curated marketplace of components, skills, agents, and integrations that developers can easily add to their stack. It's designed for developers and teams using Claude Code who want to accelerate project setup, standardize configurations, and leverage community-vetted tools and workflows.

LibreChat is a comprehensive, self-hostable AI chat platform that solves the problem of fragmented AI tools by bringing conversations from multiple providers into a single, customizable interface. It features advanced agents, code execution, file handling, and enterprise-grade authentication, making it ideal for developers, teams, and organizations seeking a unified, secure, and extensible AI workspace.

Fully autonomous AI Agents system capable of performing complex penetration testing tasks

This repository is a curated collection of extracted system prompts from leading AI models like Anthropic's Claude, OpenAI's ChatGPT, Google's Gemini, and others. It addresses the problem of opaque AI behavior by revealing the foundational instructions that guide these systems, providing transparency for researchers, developers, and enthusiasts. The collection is regularly updated, serving as a valuable resource for anyone interested in understanding, comparing, or reverse-engineering how these AI models are fundamentally directed to operate.

OmniRoute is an open-source AI gateway that provides a single OpenAI-compatible endpoint to access over 350 providers and 1200+ models, including many free options. It solves the problem of vendor lock-in and high costs by automatically routing requests to the cheapest or most available provider with quota-aware fallback. It's built for developers using AI coding assistants like Cursor, Copilot, and Claude Code who want maximum flexibility, reliability, and token savings.

OpenWhispr is a privacy-first, cross-platform dictation app that converts speech to text. It solves the problem of slow typing and privacy concerns by offering fast, local transcription using models like Nvidia Parakeet/Whisper, as well as optional cloud models. It's designed for professionals like clinicians, lawyers, and anyone who needs efficient, secure voice-to-text functionality in applications like Slack, meeting notes, and document creation on macOS, Windows, Linux, and iOS.

Router is a model router for agentic systems that intelligently directs each prompt to the most cost-effective model capable of handling the task, typically in under 50ms. It solves the problem of overspending on expensive frontier models for simple coding prompts, allowing engineering teams to maintain quality while dramatically reducing token spend. It's designed for developers and organizations using AI coding assistants like Claude Code, Codex, and Cursor who want to optimize their AI infrastructure costs without changing their workflow.

CMEM Cloud is a persistent memory layer for AI agents that captures, compresses, and recalls context across sessions. It solves the problem of agents forgetting past decisions and repeating work, by creating a shared, searchable memory for your entire team. It's for developers and teams using AI coding assistants like Claude Code, Cursor, and Copilot who want their agents to learn from history and collaborate seamlessly.

Hermes Agent is a persistent, multi-platform AI assistant that grows with you. It solves the problem of fragmented AI tools by providing a single agent with unified memory that works across Telegram, Discord, Slack, CLI, and more. It's for developers, teams, and power users who need an automated assistant that remembers context, schedules tasks, delegates work, and securely browses the web—all from one intelligent core.

Caveman is an AI efficiency platform that automatically optimizes your AI traffic to reduce token usage and costs by up to 65%. It works across Claude, ChatGPT, and Gemini by applying optimizations like caching, compression, and routing, then verifies the savings. It's designed for developers and enterprises looking to significantly lower their AI operational expenses without sacrificing output quality.

career-ops is an open-source AI job search system that runs locally on your machine inside any AI coding CLI. It solves the problem of manual, time-consuming job hunting by automatically scanning portals, evaluating listings against your CV with a structured rubric, and tailoring application materials. It's built for developers and technical professionals who want a private, powerful, and automated way to manage their job search pipeline directly from their terminal.

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.