Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full behavioral burden. 'Get' implies a read, but nothing is said about auth requirements, error behavior for a missing key, or the returned shape, which is a real gap for a tool whose result is untyped.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.