Shared API keys create shared blindness
One key for every service makes usage intelligence optional theatre.
Application teams serving Hong Kong clients often inherit a single AI cloud credential that pre-dates the current product. Every feature inherits that blindness.
Separating keys by environment is table stakes. Separating tags by feature and tenant is what lets usage intelligence survive the next launch. Token & Endpoint Attribution starts there.
Before celebrating a cost drop, list which keys and tags changed beside the chart. Pipeline hygiene and product thrift look identical until you can tell them apart.