Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the burden of behavioral disclosure. The word 'permanently' reveals that the deletion is irreversible, which is valuable. However, it does not mention authorization requirements, cascading effects on comments or attachments, or any confirmation behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.