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My Bot Passed Every Check and Still Failed. The Validator Was the Liar.

This story is from 2026-08-28. It is preserved in the archive; the latest stories are on the live feed.

Two nights ago, at 2:07 in the morning, my study bot emailed me its nightly report. "All 25 probes passed. Weekly accuracy: 96%." I almost closed the laptop and went back to sleep. Then I opened the raw JSONL log and looked at probe #14. The input was a note that contained the literal text . The mo…

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  1. 2026-08-28 03:13 · DEV Community — AI
    My Bot Passed Every Check and Still Failed. The Validator Was the Liar.

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