Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the burden of behavioral disclosure. It does disclose that the response contains raw Gutenberg content, which is useful. It does not mention not-found behavior, permissions, or read-only status, though the simple getter nature reduces the risk.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.