Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description bears the full burden of disclosing behavior. It implies a read-only operation through the verb 'list', but it does not mention authentication requirements, error conditions, or the return format. For a tool with no annotations, this is a minimal but not fully transparent disclosure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.