Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already declare readOnlyHint=true and openWorldHint=true, so the description carries a lighter burden, but it adds almost no behavioral context beyond restating that it's a list operation and giving the REST path. It says nothing about what a saved view contains, whether results are paginated, or how omitted filters affect the result set.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.