Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description simply states it deletes a note, but does not disclose whether deletion is permanent, if it can be undone, or what side effects occur (e.g., cascading deletions). With no annotations, the description carries full burden and fails to provide sufficient behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.