Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. 'Get info' strongly implies a read-only, non-destructive operation, which is a useful implicit disclosure. However, it does not explicitly state side-effect safety, permission requirements, or return behavior. For a zero-parameter getter, this is minimally transparent but not fully explicit.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.