Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, and the "[READ]" prefix merely restates that with no added context. Nothing is said about what a missing or invalid ID returns, whether the response includes execution history, or what the undocumented "target" field does — behavior beyond the annotation is left undisclosed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.