How to Build Production Observability for Google AI Agents Using OpenTelemetry
Debugging AI agent failures in production is difficult because traditional logs record what executed but not why decisions were made, leaving engineers without causal context. A structured observability approach using OpenTelemetry spans and events can reconstruct an agent's full decision path, from model calls and tool executions to policy checks and retries. During local development, visualizing runs as a tree helps expose missing steps, unexpected retries, and direction changes before issues reach production. Rather than logging raw prompts, the recommended method attaches structured reason codes at consequential decision boundaries, making agent behavior aggregable and auditable. Frameworks like Google ADK, Genkit, and Gemini can feed this telemetry pipeline into Cloud Trace, Logging, and Monitoring for alerts and dashboards.
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