/ writing Series
Harness Engineering
- Harnesses, Playbooks, and Proof In February, OpenAI published Harness engineering: leveraging Codex in an agent-first world. Ryan Lopopolo and his team spent five months building a product where no human wrote a line of code, and sh
- What the Harness Can't Prove This is the second post in a series. The first one looked at three approaches to agentic development from 10,000 feet: OpenAI's harness engineering, Anthropic's AI-native playbook, and the way I've be
- Stale Beats Broken Third post in the series. The first compared three approaches to agentic development and the second spent more time on OpenAI's. This one is about where most of my engineering budget actually goes, wh
- Marked Isn't Enforced Most agent memory can find the decision you asked about. Far less of it can tell you whether that decision still stands, and even when it knows, it often hands you the old one anyway. Fourth post in t
- (Humans) Yeah (What are they good for?) Absolutely everything. Anthropic documented where the software lifecycle is headed. I agree with most of it. The part I don't agree with is the part that decides whether the rest works. This is the last post in the series,