Agent Telemetry and the New Observability Model for AI Agents

The text discusses the limitations of classical observability tools—logs, metrics, and traces—when applied to autonomous agents, which often exhibit non-deterministic behavior unlike traditional deterministic systems. It emphasizes how these tools fail to capture the underlying reasoning and decision-making processes of autonomous agents, leading to unaddressed errors despite infrastructure appearing healthy. To address this gap, a new layer of agent telemetry is proposed, which captures the decisions, reasoning steps, tool selections, and session-level behaviors of these agents. This is achieved through the introduction of decision spans, tool-call traces, and session-level signals that reveal emergent multi-turn failures, supporting a deeper understanding of agent behavior. The text also highlights the importance of integrating these telemetry insights with runtime interventions to manage autonomous agent reliability effectively, transforming postmortem analyses into structured root-cause investigations. The Galileo platform is cited as a solution that offers comprehensive agent observability and control through features like agent graph visualization, agentic eval metrics, and real-time protection guardrails, facilitating more reliable deployment of AI agents by connecting observability with evaluation and intervention in one cohesive workflow.