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, and it discloses little beyond a bare read. It does not say whether the data is latest-only vs historical, how frequently NASS updates it, or whether any auth/rate constraints apply. 'current' is the only behavioral hint.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.