Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true and destructiveHint=false, so the safety profile is covered. The description still adds real behavioral context beyond them: the repealed-article warning, the fact that explanatory notes are labeled as not part of the law, and the missing-article fallback behavior. However, it does not address pagination or size limits for long articles (output schema is not visible here), so it is useful but not exhaustive.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.