Modern infrastructure teams face a persistent tension between agility and stability. A recent case study from the AWS governance agent community illustrates how architectural decisions can resolve this friction. By migrating from hardcoded skills to dynamic registry loading, teams achieved the ability to deploy 16 new capabilities in under an hour with zero downtime—a significant operational milestone. This pattern replaces traditional monolithic agent designs where new functionality required full system restarts, introducing unnecessary risk and deployment windows. The registry approach treats skills as loosely coupled, independently deployable modules, fundamentally changing how infrastructure automation scales.