AI Tech Publishing

Apr 13, 2026 · Artificial Intelligence

12 Core Components of a Production-Grade Agent Harness and Framework Comparison

The article explains why production issues often stem from the agent harness rather than the model, defines the harness concept, breaks down its twelve essential components, shows a full execution loop, compares Anthropic, OpenAI, LangChain and other frameworks, and discusses key design trade‑offs for building robust AI agents.