Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It merely says 'Approve a social media post' without mentioning what approving entails: state changes, reversibility, permission requirements, or downstream effects such as publication. This lack of detail is a significant gap for a workflow-related action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.