Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full responsibility for behavioral disclosure. It adds some context by specifying that polls are returned with questions, options, and vote counts, and 'List' implies a read-only operation. However, it does not explicitly state read-only status, authentication needs, pagination, or potential empty results, which would be more transparent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.