Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full responsibility for behavioral disclosure. It only mentions the PRO+ plan restriction and the read-like action of finding links, but does not disclose read-only behavior, return format, pagination, or potential errors such as exceeding plan limits. This is minimal disclosure for a tool that may have side effects or require special permissions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.