Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full behavioral burden. It indicates a read-only listing of currently open tunnels, which is useful, but does not disclose permissions, return format, pagination, or whether it only shows tunnels opened by the current session.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.