Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, and the single parameter is a nested object with a mix of required and optional fields. The description provides security context (mentions 'payment context references', 'authority', 'non-secret refs'), which adds mild meaning beyond the field names. However, it doesn't describe field-level semantics like expected hash formats (hex? base64?), which would meaningfully help agents construct valid input. The description's 'hash-only' framing is helpful but doesn't fully compensate for the lack of field documentation.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.