Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety and external-dependency profile is covered by structured data. The description adds only 'full detail,' which implies a richer payload than the board endpoint but says nothing about auth, rate limits, or failure modes for a bad tenant/site/path.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.