Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, idempotentHint=false, openWorldHint=true and destructiveHint=false, so the safety profile is known from structured data. The description adds no context of its own about what a created feared event requires (study linkage, risk matrix, gravity scale) or what happens on success, so it contributes nothing beyond the annotation block and is not contradictory to it.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.