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arXiv — cs.AI preprintsInternational15 October 2026

What Counts as the Same Task? Executable Contracts for Robustness Evaluation of Tool-Using Agents

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arXiv:2610.14477v1 Announce Type: cross Abstract: Robustness tests for tool-using agents often change the agent's environment, for example by hiding a hostile note in an invoice, and then judge the agent by what it does. The result tells us about the original task only if the changed test case is still a valid test of that task. Many evaluations decide this with weak rules, such as accepting any well-formed edit or any edit that stays close to the original in embedding space. We propose executable task contracts. A contract states which facts define a task, which edits are allowed, and what fi
— arXiv — cs.AI preprints

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