Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, destructiveHint=false, idempotentHint=true, and openWorldHint=true, covering safety and idempotency. The description adds the scope 'databases:write,' which is useful context for permissions. It does not contradict annotations and provides a clear behavioral statement, though it does not elaborate on side effects (e.g., whether data is preserved), but given the non-destructive annotation, this is adequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.