Status: IN
DAX management API actions (e.g., `DescribeClusters`, `CreateCluster`) cannot be scoped to specific cluster ARNs — the IAM `Resource` element must be `"*"`; data plane actions can be scoped to specific cluster ARNs.
Source: entries/2026/03/11/amazondynamodb-latest-developerguide-DAXcluster-managementhtml.md