Everything You Need to Know About Harness Engineering
Francine Ysabel B. Dalida2026-07-06T11:40:27+00:00AI agents can now write code, browse the web, and run for hours without a human watching. Ask one to build a feature, and it might open ten files, call five tools, and make a hundred small decisions before it ever shows you a result. That's a different animal from a chatbot answering a single question — and it breaks the old playbook for controlling AI behavior. For a while, "prompt engineering" was the go-to answer. Write a clearer instruction, add a few examples, and the model behaves. That still works for single-turn tasks. But once an agent is operating [...]








