LLM Harness: The Invisible Machinery Behind Our AI Agents
We love saying "our AI fixed the bug" or "our AI searched Gmail." But let's be honest—our LLM just talked about it. The real work happened in a layer we barely notice: the harness. It's the unsung infrastructure that gives our model a workplace, tools, memory, and guardrails (so it doesn't accidentally delete production). In this post, we pull back the curtain on the invisible machinery that turns a glorified text predictor into an agent that can actually act—and why the harness matters every bit as much as the model.