DeepKnown-Guard: A Proprietary Model-Based Safety Response Framework for AI Agents. - Qi Li; Jianjun Xu; Pingtao Wei; Jiu Li; Peiqiang Zhao; Jiwei Shi; Xuan Zhang; Yanhui Yang; Xiaodong Hui; Peng Xu; Wenqin Shao (CoRR, 2025)