Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full responsibility for disclosing behavioral traits. It only states 'Delete a collection' with no mention of permanence, cascading effects, authentication requirements, or error conditions. This is a destructive operation, yet the description fails to warn that deletion is irreversible or that it may fail if the collection is still published.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.