when your agent makes a wrong call, how do you figure out why afterward?

Reddit r/AI_Agents News

Summary

A developer asks how others debug AI agents that make wrong decisions due to stale information, questioning the effectiveness of current tracing tools like LangSmith, LangFuse, and Phoenix.

been building agents for a while and one thing keeps bugging me. when your agent does something wrong ,acts on old info, picks a stale value, makes a decision that made zero sense in hindsight , how do you actually figure out why afterward? do you just scroll through traces in langsmith/langfuse/phoenix? read raw logs? something custom? or honestly mostly shrug and move on? i'm mostly curious about the "it used outdated info" kind of failure — not crashes, but when the agent confidently acts on something that was already stale. do your tools actually catch that, or do you find out way too late? not selling anything, just genuinely curious what people do. thanks
Original Article

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