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Stdout Order Is Not Causality: A Parent-Span Contract for Agents

This story is from 2026-09-03. It is preserved in the archive; the latest stories are on the live feed.

Linear logs are a convenient lie. An agent that fans out two tool calls, waits, then writes a file will still print those events in whatever order the scheduler flushed stdout. The debug story you read is a serialization of a graph. Treat that serialization as causality and you will “fix” the wrong…

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  1. 2026-09-03 16:33 · DEV Community — AI
    Stdout Order Is Not Causality: A Parent-Span Contract for Agents

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