RC-Pier Ouput - Alx

When designing the cap, the shear and torsion output lists a term "Alx" which is defined as "Alx is the EFECTIVE longitudinal steel required in addition to the PROVIDED EFFECTIVE flexural steel."  My question is the interpretation of this statement.  If you design a cap and Alx requires 10in^2, do you need to add 10in^2 to your flexural steel?  Or is it saying that only 10in^2 of  however much flexural steel you put in the cap is needed?