The reason enterprises fail at agentic tools isn't that the tools are weak — it's that they either hand over the kingdom or lock everything away. The previous four parts give you the alternative: Layer Failure mode it covers What it buys you 1. Identity (SSO, dedicated role, source identity) Long-lived or shared credentials Bound and attributable sessions with a short blast window 2. UA tag ( AWS_SDK_UA_APP_ID ) Missing application telemetry A best-ef...