Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden. It notes that the tool returns a 'teaser' and mentions an 'examined marker' behavior, providing some insight. However, it lacks details on authentication, rate limits, or other behavioral traits, leaving gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.