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

New attack poisons AI agent skill libraries by injecting malicious trajectories that get promoted to trusted instructions — a supply-chain threat for agentic AI deployments.

Summary written by editorial AI · Source link below

Filed by arXiv Crypto & Security1 min readRead at source ↗

arXiv:2608.05563v1 Announce Type: new Abstract: 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 bounded evidence, but cannot observe private pools or evolution logic or edit the skill bank. Artifact poisoning requires Inclusion, Evol

Editorial Analysis

Why it matters

Enterprises deploying self-learning AI agents face a novel integrity risk: adversaries can corrupt the experience-to-skill pipeline, turning learned behaviours into persistent backdoors.

What to do

Audit any agentic AI system that promotes operational experience into reusable skills; enforce cryptographic integrity and human review gates before skill adoption.

Board brief

Self-learning AI agents can be compromised through poisoned experience data, creating persistent backdoors that evade traditional security controls.

Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.

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Read the full report at arXiv Crypto & Security

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