Welcome to Learn Harness Engineering | Learn Harness Engineering

A project-based course on designing the environments, state, verification, and control systems that make Codex and Claude Code reliable.

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 Anthropic: Effective harnesses for long-running agents Anthropic: Harness design for long-running application development Awesome Harness Engineering Through systematic environment design, state management, verification, and control systems, this course teaches you how to make agentic…

saved by

• Shivam Siddaiya
• Turja Chowdhury
• Katherine Driscoll
• Lawton Skaling

related reading

• Inside Coding Agentsvpromise.github.io
• Harness design for long-running application developmentanthropic.com
• Effective harnesses for long-running agents \ Anthropicanthropic.com
• Agent Leaderboards · Which tools coding agents choose · Armaturearmature.tech
• sysls on X: "How To Be A World-Class Agentic Engineer" / Xx.com
• Lecture 01. Strong Models Don't Mean Reliable Execution | Learn Harness Engineeringwalkinglabs.github.io
• Harness Engineering for Self-Improvement | Lil'Loglilianweng.github.io
• GitHub - shareAI-lab/learn-claude-code: Bash is all you need - A nano claude code–like 「agent harness」, built from 0 to 1github.com
• A Guide to Claude Code 2.0 and getting better at using coding agents – sankalp's blogsankalp.bearblog.dev
• Become a Real AI Heroaihero.dev
• How to Harness Coding Agents with the Right Infrastructure | Blogalexlavaee.me
• Harness engineering for coding agent usersmartinfowler.com