TLDR Tech / AI
The Anatomy of an Agent Harness
This article dissects the "agent harness," the software infrastructure that converts a Large Language Model (LLM) into a goal-oriented, tool-wielding agent. Effective production harnesses incorporate layered memory, verification loops, subagent orchestration, and structured tool execution to mitigate context loss, errors, and silent failures. Frameworks like Claude Code, OpenAI Agents SDK, and LangGraph demonstrate that robust harness design is crucial, capable of improving agent performance by over 20 ranks, establishing it as a vital engineering component for any LLM.
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