arXiv cs.AIFriday · May 29, 2026FREE

VitalAgent: A Tool-Augmented Agent for Reactive and Proactive Physiological Monitoring over Wearable Health Data

VitalAgent, introduced in a paper on arXiv, is a tool-augmented agentic framework designed for ECG/PPG-based mobile health monitoring. It addresses limitations of existing mHealth systems by enabling temporal reasoning, persistent physiological context, and proactive monitoring over long-term signal streams. The framework includes a longitudinal physiological memory and a tool-augmented reasoning interface for dynamic computation on raw signals. To evaluate performance, the authors created VitalBench, a benchmark dataset comprising 1,862 QA pairs for reactive question answering and 90.2 hours of continuous ECG/PPG recordings for proactive monitoring, covering cardiac, physical activity, and stress-related tasks. Experiments show VitalAgent achieves over 30% improvement over prompt-based and ReAct baselines in reactive evaluation and supports proactive alert monitoring over long durations. The paper is available on arXiv under the identifier 2605.29483, published on May 29, 2026.