Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Goes well beyond the annotations: showing consumes a dashboard slot and is refused at the plan limit, ClickHouse-synced properties are always shown and slot-free, hiding deletes no data and is reversible, and the response reports slot usage before/after. This is exactly the operational context an agent needs for a mutating toggle.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.