Mastering Agentic AI: The Evaluation and Monitoring Pattern

mail@carlosprados.com (Carlos Prados) — Tue, 15 Sep 2026 00:00:00 +0000

In my previous post, we looked at Guardrails / Safety Patterns — the rails that keep an agent from doing something stupid or dangerous in the moment. Guardrails answer “is this single action safe right now?” But they don’t answer a different, harder question: is this agent actually any good?

You can ship an agent that never violates a guardrail and still be slow, expensive, and wrong half the time. And the brutal part is that with a non-deterministic system, “wrong half the time” is invisible until you measure it. There’s no stack trace for a mediocre answer.

Evaluation on EnRedAndo Me - Carlos Prados

Mastering Agentic AI: The Evaluation and Monitoring Pattern