Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It implies a mutation operation ('Update') but doesn't specify whether this requires admin permissions, if the change is persistent, what happens to existing configurations, or any rate limits. This leaves significant gaps for a tool that modifies system settings.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.