Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description mentions 'creating copies,' which implies non-destructive behavior consistent with destructiveHint=false. However, with all annotations false, the description carries the full burden of behavioral disclosure. It does not mention the need for a plane definition, whether multiple objects are handled in one call, or any 3D-specific details.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.