Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already mark the tool as destructive and non-idempotent, but the description adds substantial behavioral detail beyond them: the exact cascading effects on projects, invitations, and subscription billing. It also discloses the required authorization level and the mandatory preview/confirmation protocol.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.