Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is well established. The description adds genuinely useful behavioral context by disclosing that the response includes profile-field provenance, letting agents distinguish source-file fields from Loa-reviewed overrides. No contradiction or hidden side effects are present.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.