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Prompt Drift Is a Quiet Deployment Bug: A Nightly Check That Costs Nothing

This story is from 2026-08-29. It is preserved in the archive; the latest stories are on the live feed.

Your prompt shipped. The model answered well. Then a stakeholder asked for a tiny wording change: "Be more helpful." You edited one line, tested three inputs manually, and merged. Two weeks later, support tickets mention the AI sounds robotic. Nothing crashed. No error log. The behavior just drifte…

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  1. 2026-08-29 10:46 · DEV Community — AI
    Prompt Drift Is a Quiet Deployment Bug: A Nightly Check That Costs Nothing

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