Author

Harsh Soni

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Preprint Jul 2026

ToolFailBench: Diagnosing Tool-Use Failures in LLM Agents

ToolFailBench is introduced, a diagnostic benchmark for measuring tool-use failures across 1,000 tasks in finance, medicine, law, cybersecurity, and real estate, showing that faithful tool use is not saturated.

Harsh Soni · 4 citations