James' Growth Diary

May 27, 2026 · Operations

Detecting Agent Silent Killers: Early Alerts for Latency Spikes, Token Explosions, and Infinite Loops

The article presents a three‑layer monitoring system—LangSmith tracing, Prometheus metrics, and Alertmanager alerts—together with concrete metric definitions, alert rules, and code examples to proactively detect latency spikes, token overuse, and dead‑loop cycles in production LLM agents, while also outlining common pitfalls and best‑practice recommendations.