Top 100 Harness Repositories
Ranking
| Ranking | Project Name | Stars | Forks | Language | Open Issues | Description | Last Commit |
|---|---|---|---|---|---|---|---|
| 1 | ECC | 227,911 | 34,855 | JavaScript | 24 | The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. | 2026-07-09 |
| 2 | deer-flow | 76,655 | 10,408 | Python | 573 | An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of ta... | 2026-07-10 |
| 3 | learn-claude-code | 70,493 | 11,482 | Python | 29 | Bash is all you need - A nano claude code–like 「agent harness」, built from 0 to 1 | 2026-06-26 |
| 4 | oh-my-openagent | 65,424 | 5,335 | TypeScript | 387 | omo/lazycodex: The coding agent for tokenmaxxers;the one and only agent harness for complex codebases. For your Codex, for your OpenCode | 2026-07-10 |
| 5 | ruflo | 63,734 | 7,523 | TypeScript | 499 | 🌊 The leading agent meta-harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory, self-learning intelligence, R... | 2026-07-09 |
| 6 | CowAgent | 45,898 | 10,261 | Python | 21 | Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-model, multi-channel. Lightweight, extensible, one-line install. (form... | 2026-07-09 |
| 7 | impeccable | 45,105 | 2,610 | JavaScript | 23 | The design language that makes your AI harness better at design. | 2026-07-10 |
| 8 | CodeWhale | 39,648 | 3,413 | Rust | 288 | Open-source, community-driven agent harness | 2026-07-10 |
| 9 | agents | 37,719 | 4,044 | Python | 0 | Multi-harness agentic plugin marketplace for Claude Code, Codex CLI, Cursor, OpenCode, GitHub Copilot, and Gemini CLI | 2026-07-08 |
| 10 | harness | 37,238 | 3,259 | Go | 93 | Harness Open Source is an end-to-end developer platform with Source Control Management, CI/CD Pipelines, Hosted Developer Environments, and Artifact Registries. | 2026-07-09 |
| 11 | openai-agents-python | 27,770 | 4,286 | Python | 28 | A lightweight, powerful framework for multi-agent workflows | 2026-07-10 |
| 12 | Resume-Matcher | 27,691 | 4,912 | TypeScript | 27 | The #1 AI Harness for Building Resumes, PDFs, Cover Letters & more, locally with 100+ LLMs support. | 2026-07-06 |
| 13 | deepagents | 26,019 | 3,644 | Python | 119 | The batteries-included agent harness. | 2026-07-10 |
| 14 | agentmemory | 24,911 | 2,055 | TypeScript | 186 | #1 Persistent memory for AI coding agents based on real-world benchmarks | 2026-07-06 |
| 15 | go-micro | 22,955 | 2,411 | Go | 106 | A Go agent harness and service framework | 2026-07-10 |
| 16 | Archon | 22,821 | 3,423 | TypeScript | 198 | The first open-source harness builder for AI coding. Make AI coding deterministic and repeatable. | 2026-07-09 |
| 17 | parlant | 18,165 | 1,535 | Python | 22 | Build reliable customer-facing AI agents with Parlant: an interaction control harness optimized for controlled, consistent, and predictable LLM interactions. | 2026-07-08 |
| 18 | Masonry | 18,150 | 3,147 | Objective-C | 128 | Harness the power of AutoLayout NSLayoutConstraints with a simplified, chainable and expressive syntax. Supports iOS and OSX Auto Layout | 2023-04-13 |
| 19 | ai-guide | 17,066 | 1,924 | JavaScript | 0 | 程序员鱼皮的 AI 资源大全 + Vibe Coding 零基础教程，分享 OpenClaw 保姆级教程、大模型玩法（DeepSeek / GPT / Gemini / Claude / GLM）、最新 AI 资讯、Prompt 提示词大全、AI 知识百科（Agent Skills / RAG / MCP / A2A）、AI 编程教程（Harness Engineering）、AI 工具用法（Cu... | 2026-07-01 |
| 20 | oh-my-pi | 17,048 | 1,517 | TypeScript | 463 | ⌥ AI Coding agent for the terminal — hash-anchored edits, optimized tool harness, LSP, Python, browser, subagents, and more | 2026-07-10 |
| 21 | LifeOS | 16,549 | 2,258 | TypeScript | 3 | An General Purpose AI Harness for magnifying human capabilities. [CODING, BUILDING, CREATING, BUSINESS, LIFE, WORK, ...] | 2026-07-09 |
| 22 | browser-harness | 15,856 | 1,476 | Python | 15 | Browser Harness | Self-healing harness that enables LLMs to complete any task. | 2026-07-09 |
| 23 | OpenHarness | 14,686 | 2,394 | Python | 25 | "OpenHarness: Open Agent Harness with a Built-in Personal Agent--Ohmo!" | 2026-06-04 |
| 24 | memU | 14,007 | 1,039 | Python | 62 | Personal memory for agents - fast memory retrieval, self-evolving skills, and lower cost. | 2026-07-10 |
| 25 | lm-evaluation-harness | 13,242 | 3,402 | Python | 573 | A framework for few-shot evaluation of language models. | 2026-06-24 |
| 26 | Trellis | 12,186 | 681 | TypeScript | 13 | The best agent harness. | 2026-07-09 |
| 27 | hive | 10,661 | 5,650 | Python | 891 | Multi-Agent Harness for Production AI | 2026-05-29 |
| 28 | open-code-review | 10,278 | 681 | Go | 24 | Open-source & free — Battle-tested at Alibaba's scale. Hybrid architecture code review tool: deterministic pipelines + LLM Agent, precise line-level comments, built-in fine-tuned ruleset (NPE, thread-... | 2026-07-10 |
| 29 | learn-harness-engineering | 10,149 | 1,091 | TypeScript | 12 | Harness engineering beginner tutorial, from 0 to 1 | 2026-07-08 |
| 30 | harness | 8,274 | 1,122 | HTML | 3 | A meta-skill that designs domain-specific agent teams, defines specialized agents, and generates the skills they use. | 2026-06-10 |
| 31 | jcode | 8,256 | 937 | Rust | 83 | Coding Agent Harness | 2026-07-10 |
| 32 | manifest | 7,227 | 472 | TypeScript | 34 | Connect Your Agents And Harnesses With Any Provider 🦚 | 2026-07-09 |
| 33 | omnigent | 6,931 | 931 | Python | 235 | Omnigent is an open-source AI agent framework and meta-harness: orchestrate Claude Code, Codex, Cursor, Pi, and custom agents — swap harnesses without rewriting, enforce policies and sandboxing, and c... | 2026-07-10 |
| 34 | osaurus | 6,894 | 388 | Swift | 47 | Own your AI. The native macOS harness for AI agents -- any model, persistent memory, autonomous execution, cryptographic identity. Built in Swift. Fully offline. Open source. | 2026-07-10 |
| 35 | harness-sdk | 6,502 | 935 | Python | 390 | Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud. | 2026-07-10 |
| 36 | defending-code-reference-harness | 6,416 | 514 | Python | 3 | Skills for threat modeling, scanning, triage, patching, plus an autonomous scanning harness you can /customize | 2026-07-07 |
| 37 | Yuxi | 6,044 | 877 | Python | 73 | 结合知识库、知识图谱管理的 多租户 Agent Harness 平台。 An agent harness that integrates a LightRAG knowledge base and knowledge graphs. Build with LangChain + Vue + FastAPI, support DeepAgents、MinerU PDF、Neo4j 、MCP. | 2026-07-09 |
| 38 | tape | 5,804 | 306 | JavaScript | 31 | tap-producing test harness for node and browsers | 2026-06-18 |
| 39 | nexent | 5,559 | 694 | Python | 232 | Nexent is a zero-code platform for auto-generating production-grade AI agents using Harness Engineering principles — unified tools, skills, memory, and orchestration with built-in constraints, feedbac... | 2026-07-10 |
| 40 | openagent | 5,371 | 619 | Go | 43 | ⚡️next-generation personal AI assistant powered by LLM, RAG and agent loops, supporting computer-use, browser-use and coding agent, demo: https://demo.openagentai.org | 2026-07-08 |
| 41 | WireViz | 5,187 | 302 | Python | 158 | Easily document cables and wiring harnesses. | 2026-06-06 |
| 42 | deepsec | 5,158 | 307 | TypeScript | 16 | Deepsec is a security harness for finding vulnerabilities in your codebase powered by coding agents | 2026-07-09 |
| 43 | harness-engineering | 4,590 | 421 | Shell | 0 | Harness Engineering 学习指南 — 从概念理解到独立实践的深度学习档案 | 2026-07-08 |
| 44 | autoagent | 4,531 | 501 | Python | 4 | autonomous harness engineering | 2026-04-03 |
| 45 | T3MP3ST | 4,189 | 900 | TypeScript | 12 | autonomous red teaming platform; multi-agent offensive-security meta-harness | 2026-07-09 |
| 46 | EvoScientist | 4,122 | 281 | Python | 22 | 🔬 Harness Vibe Research with Self-evolving AI Scientists | 2026-07-09 |
| 47 | langroid | 4,055 | 380 | Python | 52 | Harness LLMs with Multi-Agent Programming | 2026-07-07 |
| 48 | claude-code-book | 3,898 | 791 | - | 10 | 《御舆：解码 Agent Harness》42万字拆解 AI Agent 的Harness骨架与神经 —— Claude Code 架构深度剖析，15 章从对话循环到构建你自己的 Agent Harness。在线阅读网站： | 2026-06-19 |
| 49 | AutoHedge | 3,754 | 623 | Python | 4 | Build your autonomous hedge fund in minutes. AutoHedge harnesses the power of swarm intelligence and AI agents to automate market analysis, risk management, and trade execution. | 2026-05-11 |
| 50 | polyaxon | 3,713 | 326 | MDX | 122 | AI Infra / AI Orchestration / AI Control Plane | 2026-07-04 |
| 51 | awesome-harness-engineering | 3,558 | 284 | - | 2 | 🛠️ Awesome tools & guides for harness engineering. | 2026-05-22 |
| 52 | cc-sdd | 3,552 | 269 | TypeScript | 15 | Turn approved specs into long-running autonomous implementation. A minimal, adaptable SDD harness with Agent Skills for Claude Code, Codex, Cursor, Copilot, Windsurf, OpenCode, Gemini CLI, and Antigra... | 2026-05-20 |
| 53 | command-code | 3,477 | 339 | - | 133 | Command Code AI | 2026-06-26 |
| 54 | goclaw | 3,414 | 964 | Go | 168 | GoClaw - GoClaw is OpenClaw rebuilt in Go — with multi-tenant isolation, 5-layer security, and native concurrency. Deploy AI agent teams at scale without compromising on safety. | 2026-07-10 |
| 55 | eve | 3,363 | 279 | TypeScript | 106 | The Framework for Building Agents | 2026-07-10 |
| 56 | desloppify | 2,971 | 217 | Python | 10 | Agent harness to make your slop code well-engineered and beautiful. | 2026-05-13 |
| 57 | claude-code-harness | 2,958 | 284 | Shell | 1 | Claude Code Dedicated Development Harness - Achieving High-Quality Development Through an Autonomous Plan→Work→Review Cycle | 2026-07-09 |
| 58 | awesome-harness-engineering | 2,951 | 304 | Python | 4 | Awesome list for AI agent harness engineering: tools, patterns, evals, memory, MCP, permissions, observability, and orchestration. | 2026-07-09 |
| 59 | erupt | 2,746 | 513 | Java | 0 | MDD & Annotation-driven Low-code Data platform & AI Harness | 2026-07-09 |
| 60 | harness-books | 2,613 | 308 | Python | 2 | 📚 Two books on harness engineering — the design philosophies behind Claude Code & Codex: constraints, query loops, context governance, multi-agent verification. harness-books.agentway.dev | 2026-04-19 |
| 61 | lazycodex | 2,591 | 167 | TypeScript | 8 | The one and only agent harness for complex codebases. Project memory, planning, execution, and verified completion inside Codex. | 2026-07-10 |
| 62 | Vibe-Skills | 2,378 | 169 | Python | 11 | Vibe-Skills is an all-in-one AI skills package. It seamlessly integrates expert-level capabilities and context management into a general-purpose skills package， enabling any AI agent to instantly upgr... | 2026-07-09 |
| 63 | deepbot | 2,360 | 186 | TypeScript | 0 | DeepBot is a system-level AI assistant built for both personal productivity and enterprise workflows — one-click setup, seamless experience, and native Feishu integration. | 2026-05-23 |
| 64 | memsearch | 2,224 | 196 | Python | 26 | A persistent, unified memory layer for all your AI agents (e.g. Claude Code, Codex), backed by Markdown and Milvus. | 2026-07-10 |
| 65 | agentic-stack | 2,167 | 262 | Python | 2 | One brain, many harnesses. Portable .agent/ folder (memory + skills + protocols) that plugs into Claude Code, Cursor, Windsurf, OpenCode, OpenClaw, Hermes, or DIY Python — and keeps its knowledge when... | 2026-05-25 |
| 66 | comet | 2,128 | 219 | JavaScript | 38 | Comet: agent skill harness for turning ideas into evaluated workflows | 2026-07-09 |
| 67 | dataclaw | 2,107 | 237 | Python | 7 | Agent harness to publish your agent chat history as Huggingface datasets. | 2026-06-05 |
| 68 | agents-best-practices | 2,103 | 188 | - | 2 | Provider-neutral Agent Skill for Codex, Claude Code, and agentic harness design. | 2026-06-29 |
| 69 | arc-kit | 2,077 | 255 | JavaScript | 13 | The Enterprise Architecture Governance Harness — strategy, architecture, delivery, and assurance for AI coding assistants | 2026-07-07 |
| 70 | agent-vault | 1,850 | 105 | Go | 14 | A HTTP credential proxy and vault for AI agents like Claude Code, OpenClaw, Hermes, custom agents + harnesses, and more. | 2026-07-05 |
| 71 | little-coder | 1,733 | 111 | TypeScript | 6 | A harness optimized to smaller LLMs | 2026-07-06 |
| 72 | antigravity-cli | 1,538 | 117 | - | 455 | Antigravity CLI brings the reasoning, execution, and orchestration capabilities of Antigravity agent harness directly into your terminal. | 2026-07-08 |
| 73 | ORG2 | 1,518 | 120 | TypeScript | 36 | Open-source Cursor-style agent IDE — but built for reviewability and control. Built-in rust harness; supports 10+ CLIs. | 2026-07-10 |
| 74 | react-fast-marquee | 1,511 | 118 | TypeScript | 56 | A lightweight React component that harnesses the power of CSS animations to create silky smooth marquees. | 2024-07-01 |
| 75 | harness-engineering-from-cc-to-ai-coding | 1,443 | 264 | HTML | 1 | Harness Engineering From Claude Code source code to AI Coding | 2026-04-10 |
| 76 | awesome-agent-harness | 1,437 | 127 | Python | 4 | An awesome list of Agent Harness engineering resources, including GitHub projects, tools, benchmarks, and practical guides. | 2026-06-21 |
| 77 | alphaclaw | 1,429 | 212 | JavaScript | 9 | The ultimate setup harness for OpenClaw. Deploy in minutes. Stay running for months. No CLI required. | 2026-06-15 |
| 78 | deepagentsjs | 1,391 | 232 | TypeScript | 23 | The batteries included agent harness. | 2026-07-09 |
| 79 | agentflow | 1,314 | 279 | Python | 4 | Orchestrate thousands of agents and harnesses as a graph programatically | 2026-07-03 |
| 80 | tavily-python | 1,313 | 168 | Python | 7 | The Tavily Python SDK allows for easy interaction with the Tavily API, offering the full range of our search, extract, crawl, map, and research functionalities directly from your Python programs. Easi... | 2026-06-10 |
| 81 | Raven | 1,293 | 27 | Python | 3 | The memory-first self-improving agent harness built on EverOS. | 2026-07-09 |
| 82 | autocontext | 1,241 | 102 | Python | 0 | a recursive self-improving harness designed to help your agents (and future iterations of those agents) succeed on any task | 2026-07-10 |
| 83 | meta-harness | 1,240 | 121 | Python | 6 | Reference code for the Meta-Harness paper. | 2026-04-29 |
| 84 | HYPIR | 1,206 | 96 | Python | 21 | Official implementation of HYPIR: Harnessing Diffusion-Yielded Score Priors for Image Restoration (SIGGRAPH 2025) | 2025-10-16 |
| 85 | oh-my-agent | 1,155 | 136 | TypeScript | 0 | Portable, vendor-agnostic agent harness for project-specific skills, workflows, and agent teams aligned with your codebase, conventions, and engineering standards. | 2026-07-10 |
| 86 | thClaws | 1,148 | 158 | Rust | 0 | Open-source AI agent harness in native Rust — GUI, CLI, headless, and webapp from one binary. Multi-provider, MCP, skills, plugins, agent teams. | 2026-07-08 |
| 87 | harness-100 | 1,142 | 409 | - | 0 | 2026-03-22 | |
| 88 | hope-agent | 1,135 | 101 | Rust | 7 | 🦭跨端交接、越用越懂你的桌面 AI 助手——也能服务化常驻、跑在云上 | Desktop AI that hands off across your devices and gets to know you better — also runs headless on a NAS or in the cloud | 2026-07-10 |
| 89 | meta-harness-tbench2-artifact | 1,131 | 165 | Python | 0 | Meta-Harness: 76.4% on Terminal-Bench 2.0 (Claude Opus 4.6) | 2026-03-26 |
| 90 | flock | 1,090 | 140 | Rust | 0 | A desktop multi-agent harness built with Rust, Tauri, and React, powered by langgraph-rust. | 2026-07-07 |
| 91 | Chorus | 1,068 | 94 | TypeScript | 10 | The Agent Harness for AI-Human Collaboration, inspired by the AI-DLC (AI-Driven Development Lifecycle) | 2026-07-09 |
| 92 | slides-grab | 1,058 | 115 | HTML | 0 | Best harness + editor + linter for generating slides in Claude Code / Codex - Claude Design Open Source Alternative | 2026-07-07 |
| 93 | bigcode-evaluation-harness | 1,053 | 263 | Python | 60 | A framework for the evaluation of autoregressive code generation language models. | 2025-07-22 |
| 94 | repository-harness | 1,052 | 388 | JavaScript | 0 | Turn any repo into an agent-ready workspace for Claude Code, Codex, Cursor, and other coding agents. | 2026-07-08 |
| 95 | ahk | 1,030 | 73 | Python | 9 | Python wrapper for AutoHotkey with full type support. Harness the automation power of AutoHotkey with the beauty of Python. | 2026-05-25 |
| 96 | vibecode-pro-max-kit | 1,028 | 217 | JavaScript | 17 | Your AI forgets. This remembers. Spec-driven coding harness for vibecoders, product owners, CEOs and real builders — self-improving context memory, 15 agents, 33 skills working with /goal, agent-team,... | 2026-06-21 |
| 97 | CodeXL | 1,008 | 147 | C++ | 0 | CodeXL is a comprehensive tool suite that enables developers to harness the benefits of CPUs, GPUs and APUs. | 2020-04-29 |
| 98 | mini-coding-agent | 999 | 184 | Python | 0 | Minimal and readable coding agent harness implementation in Python to explain the core components of coding agents. | 2026-04-07 |
| 99 | C4iOS | 974 | 74 | Swift | 15 | C4 is an open-source creative coding framework that harnesses the power of native iOS programming with a simplified API that gets you working with media right away. Build artworks, design interfaces a... | 2021-02-07 |
| 100 | oh-my-taiyiforge | 972 | 20 | TypeScript | 0 | AI workflow automation plugin for intelligent code generation with Claude/Codex | 2026-07-06 |