Harness Engineering: How to Build a Software Factory — Dru Knox, Tessl
Source
youtube.com
Author
AI Engineer
Date
Why it matters
Gives measurable signals for how autonomous a coding-AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → setup is, including manual takeovers and human PR comments. It also structures the loops and layers a team must build to move from using agents to running them.
Terms in this piece · Glossary
agent harness — The scaffolding around a model that turns it into a working agent — the loop, the tools it can call, and the rules for when to stop.
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
