Author

Jia-Luo Chen

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Preprint Aug 2026

CompoSkill: Compositional Skill Chain Attacks from Individually Scanner-Passing LLM Agent Skills

Autonomous AI agents tackling Long Horizon Tasks depend on marketplace skills that are certified one at a time: a scanner returns a safety verdict for each skill and declares the ecosystem safe if every package passes. We show that this assumption fails under skill composition. A skill may pass the per-skill scanner in...

Ming-Xiao Liu, Zhoumian Jiang, Jia-Nan Ma et al. · 0 citations

Preprint Aug 2026

When Experience Becomes Instruction: Trajectory Poisoning in Self-Evolving Agent Skill Systems

Self-evolving skill (SES) systems distill agent trajectories into persistent skills, allowing untrusted experience to become trusted instruction. We introduce PoisonedEvolution, a trajectory-poisoning attack on this promotion process. Our skill-visible black-box attacker can inspect a target skill and contribute bounde...

Jia-Luo Chen, Lingqi Jiang, Xin-Hao Deng et al. · 0 citations

Review Aug 2026

SkillTrace: Multi-Trace Provenance Auditing for LLM-Agent Skill Reuse

SKILLTRACE is presented, a multi-trace provenance auditing framework for LLM-agent skill reuse that represents the Operational Trace as a Skill Operational Graph (SOG) that captures activation, procedure, and resource-flow structure.

Jia-Luo Chen, Minghe Wang, Lingqi Jiang et al. · 0 citations