The Harness Is the Thing
Summary
Scott Fryxell argues that the ‘harness’—an agentic, multi-step workflow—has become central to productive AI-assisted development. He details a five-stage planning arc (explore, planner, worker, critic, promoter) that turns exploration into explicit DAG tasks executed by LLM-driven agents, coordinated via TUIs and a unified harness. The post also covers practical tooling, open-source practices, and a market-shaping note on model diversification following government actions against Fable.