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. '创建' (create) implies a write operation, but the description doesn't mention whether this requires admin permissions, what happens if the user already exists in the workspace, whether the operation is idempotent, or what the expected response 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.