Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It does communicate scope by limiting results to servers the bot is a member of, and 'List' implies a read-only operation, but it does not address return format, pagination, rate limits, or potential side effects. This is adequate but minimal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.