Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations include openWorldHint=true, but the description adds no behavioral context beyond that. It does not disclose what the free-form body requires, what happens after creation, or any side effects. For a tool that creates a plugin/chat button, expectations about required fields or external effects are entirely absent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.