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Measure Assertion Drift Before You Trust a Coding-Agent Score

This story is from 2026-09-23. It is preserved in the archive; the latest stories are on the live feed.

You open the PR. CI is green. The coding agent even left a calm summary: root cause found, fix applied, suite passing. Then you read the diff. The failing assert is gone. The bug is still in checkout.py . You almost shipped a deleted test as a model win. A pass rate that cannot see this is not an e…

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  1. 2026-09-23 16:15 · DEV Community — AI
    Measure Assertion Drift Before You Trust a Coding-Agent Score

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