Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description bears the full burden of disclosing behavior. It only says 'Return', which implies a read-only snapshot, but it does not clarify blocking behavior, staleness, absence of a build, or how state is represented. The presence of await_build and get_build_wait siblings makes the missing blocking distinction significant.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.