# HeadCommand.Request - Source proto: `rb/api/head_command.proto` Request payload for HeadCommand. | Field | Type | Label | Description | | ----- | ---- | ----- | ----------- | | command_header | [CommandHeader.Request](../command_header/commandheader-request.md#rb-api-commandheader-request) | | | | joint_position_command | [JointPositionCommand.Request](../basic_command/jointpositioncommand-request.md#rb-api-jointpositioncommand-request) | | |