Awesome Agent Harness

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

A Go agent harness and service framework

Hindsight: Agent Memory That Learns

Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.

An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

Scale computer-use 2.0 with open-source drivers, cross-OS fleets, and benchmarks for training, evaluation, and data generation.

SWE-agent takes a GitHub issue and tries to automatically fix it, using your LM of choice. It can also be employed for offensive cybersecurity or competitive coding challenges. [NeurIPS 2024]

Fast, efficient, battle-tested at Alibaba's scale. Hybrid architecture code review tool: deterministic pipelines + LLM Agent, precise line-level comments, built-in multi-language ruleset (NPE, thread-safety, XSS, SQL injection), OpenAI & Anthropic compatible.

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

Devika is the first open-source implementation of an Agentic Software Engineer. Initially started as an open-source alternative to Devin.

Agent Skills for Google products and technologies

AI Agent Framework, the Pydantic way

The most RAM efficient harness

Open source agentic operating system

Build reliable customer-facing AI agents with Parlant: an interaction control harness optimized for controlled, consistent, and predictable LLM interactions.

Open-source Agent Operating System

The LLM Evaluation Framework

Gas Town - multi-agent workspace manager

A comprehensive collection of Agent Skills for context engineering, multi-agent architectures, and production agent systems. Use when building, optimizing, or debugging agent systems that require effective context management.

🐫 CAMEL: The first and the best multi-agent framework. Finding the Scaling Law of Agents. https://www.camel-ai.org

Browser Harness | Self-healing harness that enables LLMs to complete any task.

SkillOpt is a text-space optimizer that trains reusable natural-language skills for frozen LLM agents through trajectory-driven edits, validation-gated updates, and deployable best_skill.md artifacts.

MCP Toolbox for Databases is an open source MCP server for databases.

Python SDK for Agent AI Observability, Monitoring and Evaluation Framework. Includes features like agent, llm and tools tracing, debugging multi-agentic system, self-hosted dashboard and advanced analytics with timeline and execution graph view

"DeepCode: Open Agentic Coding (Paper2Code & Text2Web & Text2Backend)"

"OpenHarness: Open Agent Harness with a Built-in Personal Agent--Ohmo!"

Supercharge Your LLM Application Evaluations 🚀

Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, security risks, prompt injection, data exfiltration, and supply-chain risks in Claude Code, Codex, and MCP skills before you install them.

Secure, Fast, and Extensible Sandbox runtime for AI agents.

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

Personal memory across agents

Orchestrate multiple coding agents from desktop and mobile

Open-source, secure environment with real-world tools for enterprise-grade agents.

A framework for few-shot evaluation of language models.

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

One portable memory layer for every AI agent: local-first, Markdown-native, user-owned, and self-evolving across apps, tools, and workflows.

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

IronClaw is an Agent OS focused on privacy, security and extensibility

A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

Agent S: an open agentic framework that uses computers like a human

Multiplayer agent harness for work

TensorZero is an open-source LLMOps platform that unifies an LLM gateway, observability, evaluation, optimization, and experimentation.

GitHub Copilot CLI brings the power of Copilot coding agent directly to your terminal.

Multi-Agent Harness for Production AI