DeepHub IMBA

May 17, 2026 · Artificial Intelligence

Agent = Model + Harness: How the Model Sets the Ceiling and the Harness Sets the Floor

The article explains that AI coding agents consist of a stateless model plus a Harness that provides context, tools, orchestration, hooks, permissions, memory, and session management, and argues that the Harness determines the lower bound of performance while the model defines the upper bound.