Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It does disclose the return content well (entry fields listing spec keys plus per-field question text for conversational collection), which is meaningful behavioral context. It says nothing about read-only semantics, pagination, or size limits, leaving gaps for a zero-annotation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.