Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must carry the full burden of behavioral disclosure. It only says 'send a request', which implies a mutation, but does not explain side effects, error conditions, or the nature of the request. It fails to disclose whether the tool is read-only, destructive, or requires specific permissions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.