Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description discloses that this is a write operation and requires confirmation, which is valuable behavioral context beyond the schema. However, with no annotations provided, the description carries the full burden and does not explain what 'requires confirmation' means in practice (e.g., whether a confirmation_id/confirm_token must be obtained first, what side effects occur, or whether the change is persistent). It adds some transparency but leaves significant gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.