Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare this as a non-read-only, open-world, non-idempotent write, so the safety profile is covered. The description adds genuinely new behavioral context with the dryRun preview mechanism, which is not derivable from the annotations. It does not warn that repeated submissions may create duplicate requests despite idempotentHint=false.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.