Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must convey behavior. It mentions 'one step at a time' and the return format (steps and success flag), but does not disclose side effects like document modification, error handling, or permission requirements. Partial transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.