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cs.AI2026
Do GUI Agents Believe Their Eyes? Diagnosing State-Belief Reliance on Pixels versus Structure
Guijia Zhang, Yuxun Chen, Yuheng Qi +1
Multimodal GUI agents read an interface through two redundant channels: the rendered pixels of a screenshot and a serialized structure such as a document object model or accessibil…
cs.AI2026
Hallucination as Exploit: Evidence-Carrying Multimodal Agents
Guijia Zhang, Hao Zheng, Harry Yang
Multimodal agents increasingly choose tool calls from screenshots, documents, and webpages, where a false perceptual claim can turn hallucination from an answer-quality error into…
cs.AI2026
STARS: Skill-Triggered Audit for Request-Conditioned Invocation Safety in Agent Systems
Guijia Zhang, Shu Yang, Xilin Gong +1
Autonomous language-model agents increasingly rely on installable skills and tools to complete user tasks. Static skill auditing can expose capability surface before deployment, bu…