Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
There are no annotations, so the description carries the full burden of behavioral disclosure. It mentions the recursive requirement but does not disclose that deletion is likely irreversible, whether permissions are required, what happens if recursive is false on a non-empty directory, or any side effects. The word 'Delete' gives some signal, but a destructive tool needs more transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.