Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare the write/safety profile (readOnly=false, destructive=false, openWorld=false, non-idempotent), so the description's real contribution is telling the agent this files into a 'verification queue' — implying human review rather than an immediate fix. It does not say what happens after review or whether duplicate reports are merged, which would complete the picture.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.