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 states it 'Get list' but doesn't clarify if this is a read-only operation, whether it requires specific permissions, if there are rate limits, or what the return format looks like (e.g., pagination details beyond the parameters). This leaves significant gaps for a tool with parameters.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.