We put a coding agent in a while loop

There are always two major results from any software development process: a change in the code and a change in cognition for the people who wrote the code (whether they did so directly or with an LLM).

Python and Typescript are elaborate formal languages that emerged from a lengthy process of development involving thousands of people around the world over many years. They are non-trivially different, and it's neat that we can port a library from one to the other quasi-automatically.

The difficulty, from an economic perspective, is that the "agent" workflow dramatically alters the cognitive demands during the initial development process. It is plain to see that the developers who prompted an LLM to generate this library will not have the same familiarity with the resulting code that they would have had they written it directly.

For some economic purposes, this altering of cognitive effort, and the dramatic diminution of its duration, probably doesn't matter.

But my hunch is that most of the economic value of code is contingent on there being a set of human beings familiar with the code in a manner that requires writing having written it directly.

Denial of this basic reality was an economic problem even before LLMs: how often did churn in a development team result in a codebase that no one could maintain, undermining the long-term prospects of a firm?

> It is plain to see that the developers who prompted an LLM to generate this library will not have the same familiarity with the resulting code that they would have had they written it directly

I think that's a bit too simplified. Yes, a person just blindly accepting whatever the LLM generates from their unclear prompts probably won't have much understanding or familiarity with it.

But that's not how I personally use LLMs, and I'm sure a lot of others too. Instead, I'm the designer/architect, with a strict control of exactly what I want. I may not actually have written the lines, but all the interfaces/APIs are human designed, the overall design/architecture is human designed, and since I designed it, I know enough to say I'd be familiar with it.

And if I come back to the project in 1-2 years, even if there is no document, it's trivial to spend 10-20 minutes together with an LLM to understand the codebase from every angle, just ask pointed questions, and you can rebuild your mental image quickly.

TLDR: Not everyone is a using LLMs for "vibe-coding" (blind-coding), but as an assistant sitting next to you. So my guess is that the ones who know what you need to know in order to effectively build software, will be a lot more productive. The ones who don't know that (yet?), will drown in spaghetti faster than before.