Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full burden; it clearly states the destructive action of revoking and clearing tokens, implying side effects. It does not elaborate on prerequisites or irreversibility, but for a simple parameterless tool, it is sufficiently transparent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.