Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool deletes a room, implying a destructive mutation, but fails to mention critical details like permissions required, whether deletion is permanent, what happens to associated data (e.g., threads, comments), or error conditions. This leaves significant gaps for safe agent use.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.