Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, openWorldHint, and idempotentHint, so the description does not need to repeat safety info. It adds minimal context about 'raw content' but does not disclose return format, authentication needs, or potential errors. Acceptable given annotation coverage, but no extra value.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.