Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare this is a non-read-only, non-destructive, non-idempotent, open-world write, so the safety profile is covered. The word 'top-level' adds real behavioral meaning about placement, but the description says nothing about duplicate-name handling, permission prompts, or what happens on repeated calls — gaps that matter for a create operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.