If I have a CDT is there any way for me to list out each of its fields by name d

I've actually written a rule to do exactly this for debugging and I think it's output is a little easier on the eyes. If you toss the below into an interface rule you can pass it any object or array and it will tell you the number of items, the item type and break out all of the fields and their values in an easy to read format. I find it particularly helpful when debugging issues related to single element arrays vs single objects. Note that it doesn't handle nested CDTs very well.

a!paragraphField(
label: "Details: " & rule!lengthNullSafe(ri!object) & " x " & typename(typeof(ri!object)),
value: joinarray(split(joinarray(split(tostring(ri!object), ","), char(10)), "; "), char(10) & char(10)),
readOnly: true()
)

I've actually written a rule to do exactly this for debugging and I think it's output is a little easier on the eyes. If you toss the below into an interface rule you can pass it any object or array and it will tell you the number of items, the item type and break out all of the fields and their values in an easy to read format. I find it particularly helpful when debugging issues related to single element arrays vs single objects. Note that it doesn't handle nested CDTs very well.

a!paragraphField(
label: "Details: " & rule!lengthNullSafe(ri!object) & " x " & typename(typeof(ri!object)),
value: joinarray(split(joinarray(split(tostring(ri!object), ","), char(10)), "; "), char(10) & char(10)),
readOnly: true()
)