Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The phrase 'from a text prompt or a public image URL' adds useful meaning to mode/prompt/image_url and signals the two input modes. However, density and texture are entirely unexplained, and the required mode parameter's enum semantics are only implied. With only 40% schema coverage, this is a meaningful gap.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.