🏆 Ranked list of 167 AI agent harnesses, plus copy-paste templates (AGENTS.md, safe Claude Code settings, a minimal harness) and step-by-step playbooks. MCP server, llms.txt & JSON. Rescored weekly.
This page lists names, links and short descriptions. The original list on GitHub is the source and belongs to its authors.
of the agent itself is the cleanest: "an LLM agent runs tools in a loop to achieve a goal." The harness is everything around that loop: which tools exist, what needs approval, what the model sees each turn, what survives a crash. Andrej Karpathy named the architecture back in 2023: the model is…
suspected star manipulation — ~228k stars / ~35k forks on a repo created 2026-01 with no matching install base, dependents, or discussion; fork-to-star ratio and growth curve are inconsistent with organic adoption
archived upstream — kept for citation
archived upstream — kept for citation
DeepSeek Harness: Everything is a Plugin.
Fully Local Manus AI. No APIs, No $200 monthly bills. Enjoy an autonomous agent that thinks, browses the web, and code for the sole cost of electricity.
Open-source Agent Operating System
The GEP-powered self-evolving engine for AI agents. Auditable evolution with Genes, Capsules, and Events. | evomap.ai
Open-source implementation of AlphaEvolve
Self-hosted TypeScript agent runtime with durable approvals and verifiable run records. Own it, approve it, audit it.
IntentKit is an open-source, self-hosted cloud agent cluster that manages a collaborative team of AI agents for you.
Build distributed, production-grade, long-running agents.
An open-source vibe coding platform that helps you build your own vibe-coding platform, built entirely on Cloudflare stack
Eko (Eko Keeps Operating) - Build Production-ready Agentic Workflow with Natural Language - eko.fellou.ai
Code, Build and Evaluate agents - excellent Model and Skills/MCP/ACP/A2A Support
A Python library for building AI agents that leverage the full power of Google Antigravity.
Mirix is a multi-agent personal assistant designed to track on-screen activities and answer user questions intelligently. By capturing real-time visual data…
Antigravity CLI brings the reasoning, execution, and orchestration capabilities of Antigravity agent harness directly into your terminal.
Record, replay, fork, and debug any agent run with any model; time travel for AI agents.
Proactive memory CLI for AI agents: recall, maintain, and evolve persistent, source-grounded knowledge across sessions.
AI agent security harness for adversarial testing: 600+ executable tests across MCP, A2A, x402/L402, and decision governance.
Run any CLI agent in a loop against specs: fresh context each iteration, the repo as durable memory, lint/types/tests/security enforced by git hooks so bad c…
Local-first, auditable memory layer for AI apps and coding agents (Codex, Claude Code, MCP, HTTP).
Deploy AI agents for your team to automate business workflows and coding.
Treats an agent run as a dynamic topology of lanes instead of one linear loop; the model decides when to observe or fan out.
MCP tool search for large catalogs: 1,000 tools behind 2 schemas, exact-schema calls, allow/deny controls.
Atlarix: open-weight frontier harness, release repository.
MCP proxy for tool scoping and context compression: progressive discovery with 3 meta-tools.
Environment design, intent, feedback loops, repo-as-system-of-record
Session bridging, feature lists, incremental progress, testing
Harness as moat, minimal intervention, progressive disclosure
September 2026 session with the authors of Prime Agent, OpenJarvis, and QM; the history of harnesses runs from 7:00 to 17:00
, Anthropic, OpenAI: Official docs for major agent platforms
harness-starter-kit · @ahwurm — LocalHarness · @liviux — LoopTroop · @rishabhpoddar — TeamCopilot, on the radar · @abilliontokens — oh-my-pi · @pranshuchittora — agent-qa · @madarco — AgentBox · @jmthomasofficial — JMT x402 Agent Tools · @ShukantPal — Proliferate · @hjqcan — GoodMemory ·…
hesreallyhim/awesome-claude-code
A hand-picked collection of the finest of resources for the most awesome of agents, Claude Code, the undisputed champion of coding companions, from the unstoppable team…
VoltAgent/awesome-agent-skills
A curated collection of 1000+ agent skills from official dev teams and the community, compatible with Claude Code, Codex, Gemini CLI, Cursor, and more.
josephmisiti/awesome-machine-learning
A curated list of awesome Machine Learning frameworks, libraries and software.
EthicalML/awesome-production-machine-learning
A curated list of awesome open source libraries to deploy, monitor, version and scale your machine learning
academic/awesome-datascience
:memo: An awesome Data Science repository to learn and apply for real world problems.
analysis-tools-dev/static-analysis
⚙️ A curated list of static analysis (SAST) tools and linters for all programming languages, config files, build tools, and more. The focus is on tools which improve…