Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the burden of behavioral disclosure. It does disclose an important trait: only public events are returned, which is a meaningful scope limitation. However, it omits other behavioral aspects like pagination behavior, authentication requirements, or return format, so transparency is partial.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.