Abrahams faith produced his works though he still produced works but he wasnt justified by the works but because of His faith but the works were there.It's almost like Orthodox have never read Romans 4: "if Abraham was justified by works then he has something to boast about, but not before God!"
In Galatians, Paul anathematizes to hell anyone who thinks their works justify them before God in some way. That's what Sola Fide is about. It doesn't need to be any more complicated than that. No eye-of-the-soul, woo-woo mysticism is necessary.
He still put Isaac on the altar to sacrifice, this was considered Abrahams works but he was counted as righteous and justified before this event, to me I see it that his works were the evidence of his faith.