Xueyang Zhou Weidong Wang Lin Lu 0003 Jiawen Shi Guiyao Tie Yongtian Xu Lixing Chen Pan Zhou 0001 Neil Zhenqiang Gong Lichao Sun 0001 SafeAgent: Safeguarding LLM Agents via an Automated Risk Simulator. 32516-32543 2026 ACL (1) https://aclanthology.org/2026.acl-long.1501/ conf/acl/2026-1 db/conf/acl/acl2026-1.html#ZhouWLSTXCZGS26