Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full behavioral disclosure burden. It explicitly states 'Nao altera dados' (does not alter data), which signals a read-only operation, and 'Lista todos' indicates the full scope of results. This is meaningful safety and scope context, though it does not address pagination or response shape.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.