Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The readOnlyHint annotation already signals a safe read operation, and the description's 'List' action is consistent with that. The description adds only the account scope and does not disclose additional behavioral traits such as pagination behavior, filtering, or return format. With annotations present, the safety profile is covered, so 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.