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Coverage-Coupled Grading: Flag AI C++ Patch Lines That No Golden Case Ever Ran

A patch landed in our C++ service last quarter with a green board: 412 golden cases passing, no flakes, no sanitizer noise. Three days later a nightly batch job wrote garbage into a column that had never been read by a test. The changed line was real, the tests were real, and they simply never met.…

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  1. 2026-11-08 19:27 · DEV Community — AI
    Coverage-Coupled Grading: Flag AI C++ Patch Lines That No Golden Case Ever Ran

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