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, so safety is covered structurally. The description adds nothing beyond that: no note on required payload fields, what gets persisted, how the choice links to its parent Question, or error behavior for non-idempotent retries.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.