Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, openWorldHint=true, and destructiveHint=false, covering the safety profile. The description adds context by specifying the types of changes returned and 'source-linked' nature, but does not disclose potential pagination, filtering behavior, or other runtime characteristics. With annotations in place, this meets the baseline but does not go beyond.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.