Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description's only additional content is the '[READ] GET /api/node-plugins/:uuid' line, which merely restates the annotation and HTTP route rather than disclosing return shape, error behavior, or access requirements.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.