Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, idempotentHint=false, and openWorldHint=false, so safety is mostly carried by structured fields. The description adds only the 'one exhibitor' singularity and event scoping; it says nothing about irreversibility, whether associated data is also removed, or what the response contains, which is below what a destructive operation ideally warrants.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.