Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100% with the 'query' parameter described as 'Search query'. The description adds no additional meaning beyond what the schema already provides, such as expected format, language, or example values. Since the schema fully documents the parameter, a baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.