Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must carry the full behavioral burden. It mentions that the tool returns a cursor, which is a behavioral trait, and implies a read operation via 'download'. However, it does not disclose whether the operation is read-only, how pagination works (e.g., need to use get_profiles_page with the cursor), or any limitations such as date range semantics or rate limits. The description is minimal and leaves critical behavioral details unstated.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.