What Is an Agent Harness? The Layer That Makes AI Agents Actually Work

If you’ve shipped an LLM-powered feature beyond a simple chat interface, you’ve already built parts of an agent harness. The retry logic around a failed tool call, the code assembling a system prompt at runtime — these are harness components. Most teams build these pieces incrementally as problems surface in production, which means the agent […] The post What Is an Agent Harness? The Layer That Makes AI Agents Actually Work appeared first on Comet .