Would you let a new coworker email your entire client list on their first afternoon, no onboarding, no check-in, just "good luck"? Us neither. Before any AI coworker of yours places a real order or updates a single real record, we run it through a gauntlet of test scenarios — the normal stuff, the weird stuff, and the stuff someone's definitely going to try just to see what happens. A pet daycare wanted an AI coworker doing purchasing research: watching for price updates across several vendors and recommending where to reorder. Sounds simple, until you account for the vendor whose unit price is the lowest right up until shipping gets added — cheapest per case, dearest per delivery. We tested for that. We tested for a lot of that. By the time it went live, it wasn't guessing — it knew exactly what to do, and exactly when to loop in a human instead of winging it. Once it could tell a real saving from a headline one, it was saving them about 8 hours a week and cutting inventory costs by 10–20%. Then we kept watching it, because "tested once" and "trustworthy forever" are two different promises. You wouldn't stop keeping an eye on a new coworker after their first good day, and we don't either.