Overview

A leakage-safe event classifier can be the right research model and still be the wrong live book. Monitoring asks whether feature scale, matured hit rate, or costs moved, and which of those is allowed to stop new risk. The deliverable is a contract, not a dashboard with an unnamed threshold.

By the end of this note you should be able to:

• separate a model-score failure from a P&L failure;
• attach an owner and a response to one predeclared diagnostic;
• refuse an automatic refit as the default cure.

1. Contents
2. The big picture