Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full responsibility for disclosing behavior. It only says 'change status' but does not mention potential side effects (e.g., notifications, workflow rules), permission requirements, or what happens on invalid transition IDs. This is a significant gap for a mutation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.