Author

Meng-Yuan Li

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Preprint Aug 2026

Behavioral Skill Reconstruction: Reconstructing Hidden Functionality from LLM Agent Skills

Closed source agent skills may encode proprietary instructions, scripts, constants, and data. Providers may offer their capabilities as services while keeping the underlying packages hidden. Prior work focuses on prompt injection attacks that directly disclose these artifacts, and existing defenses accordingly aim to p...

Pei-Chun Hua, Haoxuan Xu, Meng-Yuan Li · 2 citations

#machine learning Preprint Aug 2026

CatchBench: When Can an Agent Failure Be Caught?

CatchBench puts one auditor's question to three information states: the declared configuration before a run (PRE), a growing prefix of its trace (LIVE), and the finished trace (POST), which none scores all three under one task-method interface.

Yue Zhao, Meng-Yuan Li, Ruo-Lin Li et al. · 3 citations