Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It makes clear this is a read (Return) and the session is short-lived, which is useful behavioral context. However, it doesn't say what happens when no session exists (returns null, empty, error?), whether this triggers any wallet interaction, or whether calling it has side effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.