Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It simply states 'Get the bot's default administrator rights' without disclosing any behavioral traits, such as authentication requirements, idempotence, or the effect of the 'for_channels' parameter. It does not explain the return format or any side effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.