At Cashcrown, we build this layer as part of every deployment: Prometheus metrics, Grafana dashboards, threshold alerts, and regression tests on a golden set. The model router logs every call: cost, latency, model, and outcome. Sensitive fields are masked before logging in accordance with PII rules.
When quality metrics drop below the threshold or the query distribution shifts relative to the baseline, the system notifies the team. Diagnosis and the decision to fix remain human responsibilities, and human-oversight is built-in, not optional.
