Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must carry the burden of behavioral disclosure. 'Remove' implies a destructive/mutating operation, but the description does not mention whether removal is permanent, what criteria define 'unused', how the optional parameters affect behavior, or whether this affects files on disk.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.