Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The word 'Lista' implies a read-only listing behavior with no mutation, but with no annotations and no output schema the description does not disclose any additional behavioral traits such as return format, ordering, or authentication requirements. It is minimally transparent for a simple list operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.