Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate this is a read-only, non-destructive, idempotent operation with a closed-world scope. The description adds valuable context by detailing the return content (e.g., confidence scores, alternative formats, unparseable lines), which helps the agent understand the tool's behavior beyond the annotations. No contradictions with annotations are present.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.