Creating fields Attribute Table on ArcToolbox

[Malebu]

Good day

I am having multiple layers (features) and I trying to standardize their attribute table. I am currently looking for a process or script that one could use to design a stand-alone attribute table "fields" within the Arc Toolbox. Meaning this tool I can add to my model and create standard fields within the attribute table. Could you please assist

Regards

Tsamaelo

[DavidPike]

https://pro.arcgis.com/en/pro-app/latest/tool-reference/data-management/add-field.htm

[Malebu]

Thanks David. 

Reading through the info on the link you've sent, it's only given me an option to add individual fields. Please see the example below of what I would like to create. 

[DavidPike]

I don't know of an existing tool you can use to make it less verbose, however it's still pretty simple copy paste stuff.  Something like

#your fc
in_table = arcpy.GetParameter(0)

#for each field
field_name1 = arcpy.getParameterAsText(1)
field_length1 = int(arcpy.getParameterAsText(2))

arcpy.management.AddField(in_table, field_name1, field_type, {field_precision},
                          {field_scale}, {field_length1}, {field_alias},
                          {field_is_nullable}, {field_is_required}, {field_domain})


field_name2 = arcpy.getParameterAsText(3)
field_length2 = int(arcpy.getParameterAsText(4))

arcpy.management.AddField(in_table, field_name2, field_type, {field_precision},
                          {field_scale}, {field_length2}, {field_alias},
                          {field_is_nullable}, {field_is_required}, {field_domain})