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 indicates this is a read-only operation ('Get all'), requires user authentication ('the authenticated user has access to'), and explains the return value ('Returns team IDs'). It does not mention potential limitations like rate limits or pagination, but for a zero-parameter list endpoint, it covers the essential behavior well.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.