Author

Parisa Rabbani

University of Illinois Urbana-Champaign

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Jul 2026

AgentAbstain: Do LLM Agents Know When Not to Act?

This work presents the first systematic evaluation framework for agentic abstention, and identifies failure modes such as post-hoc abstention, in which agents execute irreversible actions before recognizing abstention triggers.

Xun Liu, Y. Zhang, Vira Kasprova et al. · arXiv.org · 2 citations