AI article
Write the eval before the prompt
Community description: Every LLM feature I've shipped went through the same loop: tweak the prompt, try five examples, feel good, ship, then get a bug report the five examples never covered. The fix is one we already know from testing. Build the eval set first, from real failures, and make the prompt the thing that has to pass it.
Dev.to | Oct 6, 2026 | Ahmet Zeybek
Automated excerpt
For an LLM feature the test is called an eval. You don't tweak the prompt and try five inputs. Ship when the number clears the line you set beforehand.
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