UndoBench: agents complete 83.54% of tasks, recover 46.72%

A benchmark study finds that tool-using AI agents complete 83.54% of enterprise workflow tasks but recover from only 46.72% of mid-execution faults, with naive retry often causing duplicate side effects. The study covers extensive trials across multiple workflows, fault scenarios, enterprise domains, open-weight models, and frameworks, highlighting major operational recovery vulnerabilities beyond nominal task completion.

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