Alibaba Cloud Native

Jun 8, 2026 · Artificial Intelligence

Code Harness vs. Model-Driven Harness: Can Agent Control Be Expressed as Executable Natural Language?

The article reviews the "Natural-Language Agent Harnesses" paper, explains the distinction between code, middleware, and harness layers for LLM agents, introduces NLAH and IHR concepts, and details experimental evaluations that show natural‑language harnesses can match code‑based control while exposing new trade‑offs and risks.