Free Models, Fixed Probes: Catch Prompt Drift Before It Reaches Users
This story is from 2026-08-28. It is preserved in the archive; the latest stories are on the live feed.
A product manager changed one word in the system prompt. "Helpful" became "concise." The agent stopped answering follow-up questions. It repeated its first answer and ignored everything after. Nobody noticed until a customer did. The customer asked a clarifying question. The agent gave the same ans…
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- 2026-08-28 03:12 · DEV Community — AI
Free Models, Fixed Probes: Catch Prompt Drift Before It Reaches Users