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Awesome List
An awesome list of Agent Harness engineering resources, including GitHub projects, tools, benchmarks, and practical guides.
GitHub stars and default-branch commits for Picrew/awesome-agent-harness.
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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, feedback loops, and control planes.
Your super agent for work: local-first, learn your working context in mins and never forget it.
Build and deploy AI Agents on Cloudflare
ByteRover CLI (brv) - The portable memory layer for autonomous coding agents (formerly Cipher)
An AI Gateway, registry, and proxy that sits in front of any MCP, A2A, or REST/gRPC APIs, exposing a unified endpoint with centralized discovery, guardrails and management. Optimizes Agent & Tool calling, and supports plugins.
Enterprise AI Platform with guardrails, MCP registry, gateway & orchestrator
Next Generation Agentic Proxy for AI Agents and MCP servers
Agent framework for the JVM. Pronounced Em-BAY-bel /ɛmˈbeɪbəl/
Devon: An open-source pair programmer
The platform for LLM evaluations and AI agent testing
Cascading runtime for AI agents. Optimize cost, latency, quality, and policy decisions inside the agent loop.
AI Agent Builder and Runtime by Docker Engineering
Laminar - open-source observability platform purpose-built for AI agents. YC S24.
Security scanner for AI agents, MCP servers and agent skills.
Build applications that make decisions (chatbots, agents, simulations, etc...). Monitor, trace, persist, and execute on your own infrastructure.
A production-oriented multi-agent orchestration framework.
Official Microsoft Learn MCP Server and CLI tool – powering LLMs and AI agents with real-time, trusted Microsoft docs & code samples.
τ-Bench: A Benchmark for Tool-Agent-User Interaction in Real-World Domains
A Go framework for building production agent systems with graph workflows, tools, memory, A2A, AG-UI, MCP, evaluation, and observability.
Run Coding Agents in Sandboxes. Control Them Over HTTP. Supports Claude Code, Codex, OpenCode, and Amp.
E2B Desktop Sandbox for LLMs. E2B Sandbox with desktop graphical environment that you can connect to any LLM for secure computer use.
LLM powered fuzzing via OSS-Fuzz.
The batteries included agent harness.
Open-source, end-to-end platform for evaluating, observing, and improving LLM and AI agent applications. Tracing · Evals · Simulations · Datasets · Gateway · Guardrails. Self-hostable. Apache 2.0.
The Cloud Sandbox Built for AI Agents
A desktop multi-agent harness built with Rust, Tauri, and React, powered by langgraph-rust.
Minimal and readable coding agent harness implementation in Python to explain the core components of coding agents.
Ultimate Context Engineering Infrastructure, starting from MCPs and Integrations
An agent benchmark with tasks in a simulated software company.
A coding agent and general agent harness for building and orchestrating agentic applications.
Sandboxed code execution for AI agents, locally or on the cloud. Massively parallel, easy to extend. Powering SWE-agent and more.