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What an AI agent harness does, in one short TypeScript loop

This story is from 2026-10-30. It is preserved in the archive; the latest stories are on the live feed.

What is an AI harness? It might be the most used and least explained term in AI right now. Here's my short answer. The model writes text. The agent harness turns that text into actions. A model can't open a file, run a command or click a button by itself. It generates output, and part of that outpu…

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  1. 2026-10-30 14:30 · DEV Community — AI
    What an AI agent harness does, in one short TypeScript loop

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