---
title: "learn-harness-engineering"
type: "tool"
slug: "walkinglabs-learn-harness-engineering"
canonical_url: "https://www.graphcanon.com/tools/walkinglabs-learn-harness-engineering"
github_url: "https://github.com/walkinglabs/learn-harness-engineering"
homepage_url: "https://walkinglabs.github.io/learn-harness-engineering/"
stars: 10009
forks: 1078
primary_language: "TypeScript"
license: "MIT"
categories: ["developer-tools", "ai-agents"]
tags: ["harness-engineering", "llm", "agentic-ai", "typescript", "agent"]
updated_at: "2026-07-07T19:46:16.713229+00:00"
---

# learn-harness-engineering

> A project-based course on building the environment, state management, verification, and control mechanisms that make AI coding agents work reliably.

Beginner tutorial for harness engineering in TypeScript, focusing on creating reliable AI coding agents through lectures and projects.

## Facts

- Repository: https://github.com/walkinglabs/learn-harness-engineering
- Homepage: https://walkinglabs.github.io/learn-harness-engineering/
- Stars: 10,009 · Forks: 1,078 · Open issues: 14 · Watchers: 46
- Primary language: TypeScript
- License: MIT
- Last pushed: 2026-06-30T01:33:03+00:00

## Categories

- [Developer Tools](/categories/developer-tools.md)
- [AI Agents](/categories/ai-agents.md)

## Tags

harness-engineering, llm, agentic-ai, typescript, agent

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## README (excerpt)

```text
<p align="center">
  <a href="README.md"><img alt="English" src="https://img.shields.io/badge/EN-English-blue?style=flat-square"></a>
  <a href="docs-readme/zh-CN/README.md"><img alt="简体中文" src="https://img.shields.io/badge/ZH-简体中文-red?style=flat-square"></a>
  <a href="docs-readme/zh-TW/README.md"><img alt="繁體中文" src="https://img.shields.io/badge/ZH--TW-繁體中文-orange?style=flat-square"></a>
  <a href="docs-readme/ja-JP/README.md"><img alt="日本語" src="https://img.shields.io/badge/JA-日本語-green?style=flat-square"></a>
  <a href="docs-readme/ko-KR/README.md"><img alt="한국어" src="https://img.shields.io/badge/KO-한국어-blueviolet?style=flat-square"></a>
  <a href="docs-readme/es-ES/README.md"><img alt="Español" src="https://img.shields.io/badge/ES-Español-yellow?style=flat-square"></a>
  <a href="docs-readme/fr-FR/README.md"><img alt="Français" src="https://img.shields.io/badge/FR-Français-007EC6?style=flat-square"></a>
  <a href="docs-readme/ru-RU/README.md"><img alt="Русский" src="https://img.shields.io/badge/RU-Русский-informational?style=flat-square"></a>
  <a href="docs-readme/de-DE/README.md"><img alt="Deutsch" src="https://img.shields.io/badge/DE-Deutsch-2EA043?style=flat-square"></a>
  <a href="docs-readme/ar-SA/README.md"><img alt="العربية" src="https://img.shields.io/badge/AR-العربية-success?style=flat-square"></a>
  <a href="docs-readme/vi-VN/README.md"><img alt="Tiếng Việt" src="https://img.shields.io/badge/VI-Tiếng_Việt-cc6699?style=flat-square"></a>
  <a href="docs-readme/uz-UZ/README.md"><img alt="Oʻzbekcha" src="https://img.shields.io/badge/UZ-Oʻzbekcha-1A8BBA?style=flat-square"></a>
  <a href="docs-readme/tr-TR/README.md"><img alt="Türkçe" src="https://img.shields.io/badge/TR-Türkçe-E30A17?style=flat-square"></a>
  <a href="docs-readme/pt-BR/README.md"><img alt="Português-BR" src="https://img.shields.io/badge/PT--BR-Português-1A8BBA?style=flat-square"></a>
  <a href="docs-readme/uk-UA/README.md"><img alt="Українська" src="https://img.shields.io/badge/UK-Українська-0057B7?style=flat-square"></a>
</p>

<h1 align="center">Learn Harness Engineering</h1>

<p align="center"><strong>A project-based course on building the environment, state management, verification, and control mechanisms that make AI coding agents work reliably.</strong></p>

<p align="center">
  <img src="https://img.shields.io/badge/Lectures-12-blue?style=flat-square" alt="12 Lectures">
  <img src="https://img.shields.io/badge/Projects-6-green?style=flat-square" alt="6 Projects">
  <img src="https://img.shields.io/badge/Languages-15-yellow?style=flat-square" alt="15 Languages">
  <img src="https://img.shields.io/badge/License-MIT-lightgrey?style=flat-square" alt="MIT License">
  <a href="https://discord.gg/XU7DQmpqk"><img src="https://img.shields.io/badge/Discord-Join_Community-5865F2?style=flat-square&logo=discord&logoColor=white" alt="Join the Discord community"></a>
</p>

> 🌍 This course is available in **15 languages**: English, 简体中文, 繁體中文, 日本語, 한국어, Español, Français, Русский, Deutsch, العربية, Tiếng Việt, Oʻzbekcha, Türkçe, Portuguese (BR), Українська. Choose your language from the badges above.

Learn Harness Engineering is a course dedicated to the engineering of AI coding agents. We have deeply studied and synthesized the most advanced Harness Engineering theories and practices in the industry. Our core references include:

- [OpenAI: Harness engineering: leveraging Codex in an agent-first world](https://openai.com/index/harness-engineering/)
- [Anthropic: Effective harnesses for long-running agents](https://www.anthropic.com/engineering/effective-harnesses-for-long-running-agents)
- [Anthropic: Harness design for long-running application development](https://www.anthropic.com/engineering/harness-design-long-running-apps)
- [Awesome Harness Engineering](https://github.com/walkinglabs/awesome-harness-engineering)

> **Quick start?** The [`skills/harness-creator/`](./skills/harness-creator/) skill can help you scaffold a production-grade harness (AGENT
```

---

**Machine-readable endpoints**

- JSON: [`/api/graphcanon/tools/walkinglabs-learn-harness-engineering`](/api/graphcanon/tools/walkinglabs-learn-harness-engineering)
- LLM index: [/llms.txt](/llms.txt)
- Full corpus: [/llms-full.txt](/llms-full.txt)

_GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_