Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. The verb 'Delete' signals destructiveness and the point-line relationship hints at geometric consequences, but the description never states whether deleting a point also affects its associated line, whether the operation is reversible/undoable, or what constraints exist (e.g., minimum point counts or validity rules).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.