Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is only 25%, with only client_id having a description. The description compensates by explaining the movement types (additions, deletions, depreciation charge, depreciation on deletions) which map directly to the nested object properties, and 'per gross-block line' clarifies gross_leaf_code. However, it does not explain period_id or template_id in detail, though their purpose is inferable.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.