What Prompts Don't Say: Understanding and Managing Underspecification in LLM Prompts

Chenyang Yang 0002, Yike Shi, Qianou Ma, Michael Xieyang Liu, Christian Kästner, Tongshuang Wu. What Prompts Don't Say: Understanding and Managing Underspecification in LLM Prompts. In Maria Liakata, Viviane P. Moreira, Jiajun Zhang 0001, David Jurgens, editors, Findings of the Association for Computational Linguistics, ACL 2026, San Diego, California, United States, July 2-7, 2026. pages 9072-9101, Association for Computational Linguistics, 2026. [doi]

Abstract

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