Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, destructiveHint=false, idempotentHint=false, so the safety profile is covered, but the description adds nothing beyond that: it doesn't say whether restoring overwrites the currently active version, whether it is reversible, or what permissions are required. For a mutation that changes which version is live, that omission matters.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.