Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already declare destructiveHint=true, readOnlyHint=false, and idempotentHint=true, covering the key safety behaviors. The description adds little beyond restating the deletion action; it mentions 'previously stored' and 'clear sensitive data' but these are preconditions and use-case rationales rather than new behavioral traits.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.