Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, and the description's '[READ] GET /api/internal-squads/' merely restates that same read-only fact rather than adding context. It says nothing about return shape, pagination, or result size for what could be a large list.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.