The saddle, the stirrup, the horseshoe, the wagon, the plough, and the drawbar all enhanced the productivity of horses and we only ended up employing more of them.
Then the steam engine and internal combustion engine came around and work horses all but disappeared.
There's no economic law that says a new productivity-enhancing programming tool is always a stirrup and never a steam engine.
I think you raise an excellent point, and can use your point to figure out how it could apply in this case.
All the tools that are stirrups were used "by the horse" (you get what I mean); that implies to me that so long as the AI tools are used by the programmers (what we've currently got), they're stirrups.
The steam engines were used by the people "employing the horse" - ala, "people don't buy drills they buy holes" (people don't employ horses, they move stuff) - so that's what to look for to see what's a steam engine.
IMHO, as long as all this is "telling the computer what to do", it's stirrups, because that's what we've been doing. If it becomes something else, then maybe it's a steam engine.
And, to repeat - thank you for this point, it's an excellent one, and provides some good language for talking about it.
Maybe another interesting case would be secretaries. It used to be very common that even middle management positions at small to medium companies would have personal human secretaries and assistants, but now they're very rare. Maybe some senior executives at large corporations and government agencies still have them, but I have never met one in North America who does.
Below that level it's become the standard that people do their own typing, manage their own appointments and answer their own emails. I think that's mainly because computers made it easy and automated enough that it doesn't take a full time staffer, and computer literacy got widespread enough that anyone could do it themselves without specialized skills.
So if programming got easy enough that you don't need programmers to do the work, then perhaps we could see the profession hollow out. Alternatively we could run out of demand for software but that seems less likely!
Then the steam engine and internal combustion engine came around and work horses all but disappeared.
There's no economic law that says a new productivity-enhancing programming tool is always a stirrup and never a steam engine.