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A Parent Success Span Can Outlive a Dropped Tool Child

This story is from 2026-09-24. It is preserved in the archive; the latest stories are on the live feed.

A parent span marked OK does not close an agent debug loop. Head-based sampling keeps that parent and can drop the failed tool child, so a dashboard reports a healthy run while the working tree is unchanged. Close the loop only after an error-biased sampler, a content hash of the tool arguments, an…

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  1. 2026-09-24 22:32 · DEV Community — AI
    A Parent Success Span Can Outlive a Dropped Tool Child

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