Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema description coverage is 100%, so all four parameters, including bookmaker and both include flags, are fully documented there. The description adds useful context about event_ids and billing behavior, but it does not need to explain each parameter again, so a baseline 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.