Smarter Models Killed the Harness. Here's What's Left — Jediah Katz, SpaceXAI
Source
youtube.com
Author
AI Engineer
Date
Why it matters
Argues which agent harnessThe 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.Full definition → features models will absorb through training and which (infrastructure, security, efficiency) remain engineering work, helping you decide where to invest in 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 → tooling.
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.
