I recently saw OpenClaw referred to as a harness. I thought, “That’s interesting. OpenClaw isn’t a harness. It’s an agent runtime—it drives the agent loop.” So, what does the word "harness" even mean?The conversation so farThe structural baseline for the concept comes from Birgitta Böckeler's April 2026 article, which elegantly defines an agent as model + harness = agent. She bifurcated the stack into a builder harness (the inner runtime shipped with the tool) and a user harness (the developer's custom context). This definition built on a wave of discussion from February 2026, whi