Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the transparency burden, and it does add two useful facts: REJECT must include reason, and the tool is restricted to human login channel A. However, it does not disclose the side effects of accepting, revising, or rejecting (e.g., whether the state becomes final, whether the other side is notified), so behavioral transparency is only partial.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.