Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false, destructiveHint=false, openWorldHint=true, and idempotentHint=false, so the agent knows it is a non-destructive mutation. The description adds nothing beyond that—it doesn't explain partial update semantics (only provided fields changed), what happens to omitted fields, or any permission requirements. The word 'viewed' also weakly conflicts with the mutation context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.