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Harness Engineering, Explained by Building One: An AI Agent Test Bench That Runs in Your Browser

This story is from 2026-10-26. It is preserved in the archive; the latest stories are on the live feed.

Harness Engineering, Explained by Building One: An AI Agent Test Bench That Runs in Your Browser Your agent says "Done!" How do you know it's true? A practical introduction to harness engineering, with a working example you can open in a browser tab: no server, no API keys, no cloud bill. Live demo…

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  1. 2026-10-26 12:32 · DEV Community — AI
    Harness Engineering, Explained by Building One: An AI Agent Test Bench That Runs in Your Browser

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