Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It does not mention the output format, error handling, or whether the optional 'project' parameter affects behavior. 'Detailed information' is vague and gives no insight into what the tool actually returns.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.