Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations present, the description carries the full burden of behavioral disclosure. It only states the action ('List webhook logs') without mentioning pagination, default limits, response structure, authentication requirements, or whether omitting the webhook parameter returns all logs. The read-only nature is implied but not explicit.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.