Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations only provide false hints (readOnly, destructive, idempotent), so the description's 'previously deleted' adds context about the operation's nature. However, it does not disclose any behavioral outcomes beyond 'restore' — e.g., whether the document is fully recovered, if versions are preserved, or if permissions are required. No contradiction with annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.