Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses that the endpoint is a no-op for agents already on PRO and is deprecated, which is key behavioral information. However, it is ambiguous whether it is a no-op for all agents or might act for non-PRO agents, and it does not mention response behavior or error handling. Since no annotations are present, the description carries the burden but only partially covers it.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.