Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden for behavioral disclosure. It states 'temporarily invisible' but does not explain if this is reversible, what happens to active clients, or any side effects. Important behavioral traits like whether the config is still queryable or if only new clients are affected are omitted.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.