Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It mentions the return values (app_token and URL), which is helpful, but lacks critical behavioral details: permission requirements, whether creation is idempotent, rate limits, error conditions, or what happens if the folder_token is invalid. For a creation 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.