DataFunTalk

Jul 15, 2026 · Artificial Intelligence

Agent Harness Unpacked: A Deep Dive into AI Agent Architecture

The article dissects the concept of an Agent Harness— the full software infrastructure that turns a stateless LLM into a capable, autonomous agent—by detailing its three engineering layers, twelve core components, execution loop, framework implementations, and the trade‑offs that determine performance, reliability, and security.