Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so no parameter documentation exists in the schema. The description compensates by explaining query syntax (phrases, AND/OR/NOT) and the book filter example ('Psalms'). However, limit, version, and the return/output behavior aren't addressed in the description beyond the schema's titles and defaults.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.