Postmortem: A Tool Result Schema Defaulted Missing Failures to Zero
This story is from 2026-09-22. It is preserved in the archive; the latest stories are on the live feed.
A merge gate treated a missing failed key as zero failures. The coding agent returned a partial tool object after a client timeout. Pytest never emitted junit XML for that SHA. The patch still reached main. This article reconstructs that failure class in detail. It is a labeled worked example, not…
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- 2026-09-22 15:31 · DEV Community — AI
Postmortem: A Tool Result Schema Defaulted Missing Failures to Zero