Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnly/idempotent/non-destructive, so the generator's safety profile is known. The description adds that output is a 'ready-to-paste' snippet (return-format context), but doesn't say whether output is validated against schema.org or how missing/unsupported fields are handled.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.