Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses one important behavioral trait: the scene root cannot be deleted. With no annotations, the description carries the transparency burden, but it does not mention that deletion is permanent or irreversible, which is significant for a destructive operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.