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Agents2026-08-21 · source-backed
The failure they target is specific and under-discussed: a cached error page or a negative price returns in the expected schema and gets consumed as fact, unlike a timeout the agent can see. Outcome Monitors check results against contracts mined from task-disjoint traces or public schemas, and on violation preserve the result and issue a nonbinding receipt naming the violated property plus the recovery tools available. arXiv Gains hold across four models in two provider families with replication in a third, and tau-bench retail improves 12 to 14 points. The ablation is the useful part: removing the recovery-tool list erases the gain entirely and restoring it brings it back. Telling the agent something broke does nothing. Telling it what to do next is the whole mechanism.
Each link below shares sources, entities, or timing with this story.
Shared entity: Gains / Same source domain / Shared topic / Earlier coverage / Downstream implication
Both cover Gains; reported by the same outlet (arxiv.org); overlapping topics (against, back).
Shared entity: Gains / Same source domain / Shared topic / Earlier coverage
Both cover Gains; reported by the same outlet (arxiv.org); overlapping topics (agent, gain).
Both cover Gains; reported by the same outlet (arxiv.org); overlapping topics (agent, gain).
Same source domain / Shared topic / Tension / Downstream implication
Reported by the same outlet (arxiv.org); overlapping topics (against, check); pushes against this story (against).
Same source domain / Shared topic / Tension
Reported by the same outlet (arxiv.org); overlapping topics (against, agent, check); pushes against this story (against).
Reported by the same outlet (arxiv.org); overlapping topics (against, agent, check); pushes against this story (against).
Reported by the same outlet (arxiv.org); overlapping topics (against, agent, broke); pushes against this story (against).
Reported by the same outlet (arxiv.org); overlapping topics (against, agent, back); pushes against this story (but).