Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered by structured data. The description adds that the payload includes metadata plus body paragraphs, but says nothing about URL constraints, error behavior, or rate limits – reasonable but thin for a network-dependent fetch.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.