Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
There are no annotations, so the description carries the full behavioral burden. 'Delete' indicates a destructive mutation, but it does not disclose whether deletion is permanent, reversible, what side effects occur, or whether special permissions are required. This is comparable to the under-disclosed update_drive case.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.