Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the agent knows the operation is safe. The description adds boundary context ('current company') and specifies the returned fields, which is useful, but it does not disclose pagination behavior or return-format details beyond the schema.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.