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. The description adds only the underlying HTTP endpoint, which conveys nothing beyond that — no indication of result ordering, scope (workspace-wide vs. per-link), or pagination behavior for a list endpoint.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.