Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It implies a read-only operation via the verb 'list', but does not explicitly state that it is non-destructive or describe edge cases like empty lists or pagination. The addition of 'with metadata' gives a partial hint about the return format, but underlying behavior details are sparse.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.