Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must bear the full burden of behavioral disclosure. It only states 'Get details', implying a read operation, but does not explicitly declare it read-only, mention potential errors (e.g., ad not found), authorization needs, or rate limits. For a simple get tool, this minimal disclosure 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.