Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the behavioral transparency burden. It discloses important traits: the token is displayed exactly once, the secret signs webhooks, and these credentials gate access to alert/vigia tools. It does not mention repeated-call behavior or recovery options, but the provided details are substantial.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.