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Duy Nguyen

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#artificial intelligence Preprint Oct 2026

VEPA: Verified Evolving Formal Policy for Lifelong LLM Agent Guardrails

VEPA is introduced, a framework for the verified evolution of formal agent guardrails that represents the guardrail as a formal policy of executable symbolic rules over typed agent events and consistently outperforms baselines while expanding the scope of deterministic formal-policy enforcement.

Duy Nguyen, Lesly Miculicich, Bhavana Dalvi et al. · 0 citations

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