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Prompt Engineering Is Dead. Long Live Harness Engineering.

This story is from 2026-08-30. It is preserved in the archive; the latest stories are on the live feed.

I spent 3 months perfecting prompts. Then I deleted half of them. In late 2023 I had a directory called prompts/ with 47 carefully tuned templates. Few-shot examples, Chain-of-Thought scaffolds, a tiny ReAct loop I was very proud of. I'd A/B tested wording. I'd argued on Twitter about whether "Let'…

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  1. 2026-08-30 06:41 · DEV Community — AI
    Prompt Engineering Is Dead. Long Live Harness Engineering.

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