Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering safety. The description adds the scope that only public workflows are listed and that they are importable, which is useful context beyond the annotations. However, it does not disclose pagination behavior, response structure, or any filtering nuances beyond the schema, so the added value is moderate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.