Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=true, and destructiveHint=false, so the description need not repeat safety traits. It adds the scoping detail that this reads one workspace user, but does not disclose additional behaviors such as error handling or return format. This is acceptable given the simple read operation and strong annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.