Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations declare readOnlyHint=true and openWorldHint=false, so safety is already covered. The description adds genuine value on top: what the records contain (predictions, lifecycle state, council-set flag, for/against evidence counts), which tells the agent what it can decide after calling. It does not mention ordering, pagination behavior, or result size, so it is not fully transparent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.