Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It only states 'List labels' with no additional behavioral context such as read-only nature, response format, or side effects. It does not contradict annotations but provides negligible transparency beyond the verb.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.