Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses immediate effect ('Takes effect immediately'), the irreversible nature via this tool, and the precise method to re-enable. This exceeds typical transparency for a simple toggle.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.