Awesome Agent Harness

The AI that really does things. Any OS. Any Platform. The lobster way. 🦞

The open source coding agent.

Use Garry Tan's exact Claude Code setup: 23 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA

An open-source AI agent that brings the power of Gemini directly into your terminal.

AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI

Model Context Protocol Servers

🙌 OpenHands: AI-Driven Development

DeepSeek Harness: Everything is a Plugin.

🤯 LobeHub is your Chief Agent Operator, organizing your agents into 7×24 operations by hiring, scheduling, and reporting on your entire AI team.

The open-source app everyone uses to manage agents at work

🌊 The original agent meta-harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory, self-learning intelligence, RAG integration, and native Claude Code / Codex / Hermes and many more Integrated

omo/lazycodex: The coding agent for tokenmaxxers;the one and only agent harness for complex codebases. For your Codex, for your OpenCode

Autonomous coding agent as an SDK, IDE extension, or CLI assistant.

Chrome DevTools for coding agents

Never stop coding. Free MIT AI gateway: one endpoint, 330+ providers (90+ free), 1200+ models — Kimi, Claude, GPT, Gemini, GLM, DeepSeek, MiniMax. Works with Claude Code, Codex, Cursor, OpenCode, Cline & Copilot. Quota-aware auto-fallback, RTK+Caveman compression saves 15-95% tokens, MCP/A2A, Desktop/PWA. Built by 320+ contributors

Orca is the ADE for working with a fleet of parallel agents. Run any coding agent with your own subscription. Available on desktop, mobile and VPS.

The Open-Source Multimodal AI Agent Stack: Connecting Cutting-Edge AI Models and Agent Infra

Teams-first Multi-agent orchestration for Claude Code

One local control plane for every AI agent: route across models, fuse new capabilities, orchestrate tools, and stay fully in control.

Playwright MCP server

🪢 Open source AI engineering platform: LLM evals, observability, metrics, prompt management, playground, datasets. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

Open-source 24/7 Cowork app for OpenClaw, Hermes, Claude Code, Codex, OpenCode and 20+ more CLI Agent | Customize your assistants | Team them up｜Star if you like it!

OmX - Oh My codeX: Your codex is not alone. Add hooks, agent teams, HUDs, and so much more.

A lightweight alternative to OpenClaw that runs in containers for security. Connects to WhatsApp, Telegram, Slack, Discord, Gmail and other messaging apps,, has memory, scheduled jobs, and runs directly on Anthropic's Agents SDK

The open agent skills tool - npx skills

A format specification for describing a visual identity to coding agents. DESIGN.md gives agents a persistent, structured understanding of a design system.

Kilo is the all-in-one agentic engineering platform. Build, ship, and iterate faster with the most popular open source coding agent.

An open-source AI coding agent that lives in your terminal.

#1 Persistent memory for AI coding agents based on real-world benchmarks

TencentDB Agent Memory is a team-level memory hub for AI Agents — turning conversations, docs, and code into four reusable memory assets (Chat Memory, Skill, LLM-Wiki, Code-Graph) that are governed, shared, and equipped across agents and frameworks.

Official Compound Engineering plugin for Claude Code, Codex, Cursor, and more

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.

AGENTS.md — a simple, open format for guiding coding agents

⌥ AI Coding agent for the terminal — hash-anchored edits, optimized tool harness, LSP, Python, browser, subagents, and more

The first open-source harness builder for AI coding. Make AI coding deterministic and repeatable.

Context window optimization for AI coding agents. Sandboxes tool output (98% reduction), persists session memory, and enforces routing across 17 platforms via MCP + hooks.

Open source agentic operating system

Eigent: The Open Source Cowork Desktop - Local and Free Alternative to Claude Cowork and Codex

Harness engineering beginner tutorial, from 0 to 1

Autonomous multi-session AI coding

Orchestrate multiple coding agents from desktop and mobile

The best agent harness.

Use Claude Code, OpenCode, Cursor CLI, and Codex on mobile and web with CloudCLI (aka Claude Code UI). CloudCLI is a free open source webui/GUI that helps you manage your Claude Code session and projects remotely.

The official TypeScript SDK for Model Context Protocol servers and clients

The all-in-one, open-source backend platform for agentic coding. InsForge gives your coding agent database, auth, storage, compute, hosting, and AI gateway to ship full-stack apps end-to-end.

Code Editor for the AI Agents Era - Run an army of Claude Code, Codex, etc. on your machine

A blazing fast AI Gateway with integrated guardrails. Route to 1,600+ LLMs, 50+ AI Guardrails with 1 fast & friendly API.

Multiplayer agent harness for work

Visual testing tool for MCP servers

AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework