Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds that the output is a PDF document, which is real value, but it does not say how the PDF is delivered (binary stream, base64, or download URL) — a critical behavior for a file-export tool where no output schema exists to clarify.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.