Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. The description only states what the tool does ('Obtiene el estado actual'), but doesn't reveal any behavioral traits like what 'estado' includes (e.g., uptime, version, error rates), whether it requires authentication, rate limits, or what format the status information returns. For a tool with zero annotation coverage, this is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.