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Hugging Face research: tool-using agents rarely turn their own evidence judgments into stopping decisions

AI agents
A study of tool-using agents in a Retrieval environment with controlled source failures: when a tool keeps returning useless results, the agent judges them as useless but rarely turns that judgment into a stopping decision. The contrast between stopping after long and short runs of judged-useless results is zero for clock- or deadline-driven stopping — it measures the gap that separates today's models.

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