Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already cover read-only, idempotent, non-destructive, closed-world behavior. Beyond that, the description adds genuinely new context: the result is pre-computed and scoped to the signed-in TenderLead account, and access requires a Pro or Team plan. Missing only the failure mode when no decision has been saved.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.