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Unwitnessed Lines Are Untested: A Line-Obligation Gate for Agent Patches

This story is from 2026-09-15. It is preserved in the archive; the latest stories are on the live feed.

An agent patch is not tested because its suite is green. It is tested when every changed executable line has a trusted witness. Agent-authored assertions do not count as that witness. Coverage that includes those assertions is a vanity metric, not a merge signal. The gate below fails closed on unwi…

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  1. 2026-09-15 17:07 · DEV Community — AI
    Unwitnessed Lines Are Untested: A Line-Obligation Gate for Agent Patches

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