List All Layers in Schematic (Cadence)

Use the SKILL statement:

cv = geGetEditCellView()
foreach(mapcar lpp cv~>lpps list(lpp~>layerName lpp~>purpose))

and the result is:

(
    ("device" "drawing")
    ("annotate" "drawing8")
    ("annotate" "drawing7")
    ("instance" "label")
    ("pin" "label")
    ("annotate" "drawing2")
    ("annotate" "drawing3")
    ("annotate" "drawing")
    ("pin" "drawing")
    ("instance" "drawing")
    ("text" "drawing")
    ("wire" "drawing")
    ("wire" "label")
    ("annotate" "drawing9")
)