Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses the two possible outcomes (all providers connected vs. missing credentials) and what each returns (authenticated:true with empty pending[], or connect_url for toolkit and per-install URLs). This provides good insight into behavior, though it could be more detailed about potential side effects (none expected given readOnly hint).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.