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VQV Signal

RESEARCH SOURCE-BACKED TECHNICAL

Cross-Session Attacks Risk in AI Agent Skill Composition via Persistent Artifacts

AI agents use skills that bundle instructions and resources, producing artifacts like files and cached data that persist across sessions. These persistent artifacts create a new attack surface, allowing potential cross-session attacks when accessed by other skills later.

Source: arXiv · arxiv.org Published 2026-10-09T08:45:27+00:00 Detected 2026-10-12T05:17:42+00:00
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AI agents use skills that bundle instructions and resources, producing artifacts like files and cached data that persist across sessions. These persistent artifacts create a new attack surface, allowing potential cross-session attacks when accessed by other skills later.

AI-assisted summary based on the listed source.

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 artifacts, such as files, configurations, and cached data, that are reused by other skills in later sessions. Since these artifacts can...

Understanding this vulnerability is crucial for securing AI agents as they increasingly rely on reusable skill packages. Mitigating risks from persistent artifacts helps prevent unauthorized access and manipulation across agent sessions.

Signal Strength 95% Technical label SOURCE-BACKED Public Interest 23 Category RESEARCH Reader Depth TECHNICAL

Signal Strength reflects source quality, relevance, freshness and evidence. Public Interest helps organize discovery; it is not proof of truth.

Public Interest components
Recognizable Entity Score 0 Practical Impact Score 0 Novelty Interest Score 72 Consequence Score 18 Curiosity Score 16 Shareability Score 41

VQV surfaced this signal because it is recent, relevant to AI Agents, connected to arXiv.