Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden of behavioral disclosure. It states that the tool returns raw JSON only and is lower-level, which adds context not in the schema. However, it does not disclose potential side effects (though 'get' implies read-only), permissions, error behavior, or output format details beyond the field list, so transparency is only partially covered.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.