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. 'Get all properties' suggests a read-only operation, but it doesn't specify whether this requires authentication, what permissions are needed, whether there are rate limits, or what format the results come in. For a CRM tool with zero annotation coverage, this is a significant gap in behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.