Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
There are no annotations, so the description carries the full burden of behavioral disclosure. It implies a read-only listing operation but does not explicitly state side effects, whether it searches recursively, what 'encontrados' means, or what the output format is. For a tool with no annotation safety hints, this is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.