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. 'Delete a slide' implies a destructive, irreversible mutation, but it doesn't specify permissions required, whether deletions are permanent, error conditions (e.g., invalid slide number), or what happens to subsequent slide numbering. For a destructive tool, this is a significant gap in transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.