Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the schema technically documents all three parameters, though its descriptions are generic 'UUID value wrapper' text. The description only implicitly maps 'one merchant' to counterpartyId and 'just booked by hand' to bookedTransactionId, and never explains the required companyId or when the optional bookedTransactionId should be supplied. Baseline 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.