An AI agent harness is the software environment that surrounds an LLM to give it the tools and context needed to complete multi-step tasks. It turns your basic LLM calls to an operational system executing real world task. The model reasons through a prompt and decides the actions. The harness connects the agent it to the tools, systems, memory and execution environments needed to carry out those actions. In a AI harness Agents typically run in a loop: an LLM decides what to do, a tool e...