Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the full behavioral burden. It discloses the returned attributes (key, label, type, required, help text, options) but does not explicitly state that the operation is read-only, has no side effects, or requires any particular authentication. No contradiction with annotations exists since none are provided.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.