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cs.CR2026
Understanding and Mitigating Cross-Session Attacks via Persistent Artifacts in Agent Skill Composition
Dianshu Liao, Shidong Pan, Guangdong Bai +2
Agent skills extend the capabilities of AI agents by bundling instructions, code, and resources into reusable packages. During skill execution, agents may produce or modify artifac…
cs.CR2026
SkillGuard: A Permission-Centric Framework for Agent Skill Security
Shidong Pan, Xiaoyu Sun, Tianyi Zhang +3
Skills extend LLM agents with reusable instructions, scripts, data, and tool bindings. This shift makes skills a new security principal in agent systems: a skill can alter the agen…