Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, so the safe-read profile is covered by structured data. The description adds essentially nothing beyond that: no pagination behavior, ordering, whether missing files or an invalid packageId yields an empty list or an error, and no indication of result size limits.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.