Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden of explaining behavior. It states the tool returns current workspace info and plan ids, which implies a read-only, non-mutating operation. It does not explicitly guarantee no side effects, describe error behavior, or mention authentication requirements, but for a simple getter with no parameters the disclosed behavior is reasonably sufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.