Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It states the action ('move a member') but doesn't describe what this entails operationally - whether it requires specific bot permissions, what happens if the member isn't in a voice channel, whether it works across servers, or what the expected outcome looks like. For a mutation tool with zero annotation coverage, this is insufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.