Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the disclosure burden. 'List' and the per-bundle 'whether used for an app' clarify that this is a read-only enumeration and indicate the output shape, but it does not mention pagination, limiting, auth requirements, or any edge-case behavior. For a zero-parameter read tool, this is adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.