Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Goes well beyond the annotations: discloses the entry cap of 10, the descending-by-total ordering, the public read-only posture, and a non-obvious privacy rule for private colonies (only visible to those who can see the colony). The annotations already cover safety, and this adds meaningful operational context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.