Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, idempotentHint=false, destructiveHint=false, and openWorldHint=true. The description adds only the N-to-1 merge semantics, without explaining what happens to the source controls, whether the operation is reversible, or what permissions are needed. The trailing incomplete 'See' further weakens behavioral disclosure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.