Rob LeClerc: harness means two things — labs supply the pilot, companies must build the plane

robleclerc · x · 2026-10-28

Rob LeClerc argues the term "harness" conflates two distinct layers: the model-side harness (the loop turning a model into an agent — tools, memory, autonomy) that labs like Claude Code and Codex ship generically with the model, and the enterprise-side harness (systems, data, rules, workflows, objectives, skills and tools you build for the agent in your business). His prediction: as agents become more autonomous and interchangeable, companies will treat them like airline pilots — labs train and supply the pilot, but every company builds and refines its own plane and cockpit, swapping in newer pilots as they're released.

Related event: Rob LeClerc: Agent Harness Splits Into Model Side and Company Side(2 posts)→

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