> I do systems programming.

I'll stop you right there. AI is not good at systems programming, it's good at CRUD web development, which is where most people are seeing the gains.

Anytime you hear such wild claims, imagine a typical code sweat shop (not just crud apps but templated eshops/business pages etc), not a system that will evolve for another 10-20 years beyond initial implementation and is backend cornerstone of some part of some corporation. That is in the case its actually true, there is tons of PR happening here, plus another gigaton of uncritical fanboyism like with any strong topic.

Now there may be an additional corner case or 20 where its still valid but they are not your typical software engineering work.

I also have your experience, even 100x code delivery improvement would barely move the needle of project delivery in our place. Better, more automated integration and end-to-end functional tests which reflect real world usage/data flows would actually make much bigger difference, no reason to think llms couldn't deliver this in near future.

Not the OP, but it might be that AI isn't as good at systems programming as it is at other domains, or it might be that you're using it differently than I am. I don't know which one it is (maybe AI just isn't good at writing the language you work with).

For things like web frontents/backends, though, it works beautifully. I ship things in days that would take me weeks to write by hand, and I'm very fast at writing things by hand. The AI also ships many fewer bugs than our average senior programmer, though maybe not fewer bugs than our staff programmers.

I never touched kubernetes and in 1 week I have a few nodes running and i understand a lot of it. Not perfect but not bad.

>AI has made the implementation part much faster, at the cost of even more time spent testing and reviewing,

Maybe they're using AI for testing and reviewing more than you are, not just for coding?

>AI has made the implementation part much faster, at the cost of even more time spent testing and reviewing,

Maybe they're using AI for testing and reviewing more than you are?

We design and build software systems that our clients' businesses run on. So it's not the product, it's the system that allows them to run their business. Typically, it's less "QuickBooks" and more "Let QuickBooks talk to 10 different systems" and then custom functionality built on that.

It's glue, custom business workflows, and basic web CRUD stuff. We build almost everything on Rails unless there's a critical reason not to (e.g., maintaining an existing system versus building from scratch.)

With very few exceptions our team composition is one senior engineer paired to a business. So we get to avoid a large amount of SDLC busywork which is inter-team communication. This leaves more time for client<->engineer communication which has a host of additional benefits. We also build with a "North Star" methodology which keeps everyone, including the client, laser focused on the work at hand.

To answer your final question about how we're benefiting so much from AI, I think it's primarily that we're leaning into it for both implementation, testing, and review. I know it's a sin to let AI review AI, but... it works. I'm actively skeptical of it myself, but our error rate and rework rates don't lie.

And we've got clients in various stages of development and/or long-term support. It's not like we're just hammering a bunch of stuff out and then bouncing. Most of these are multi-year tightly-integrated projects with our clients and we don't see a lack of trust or frustration that you'd expect to see if you were shipping slop. Our Honeybadger errors typically stay at zero, our performance metrics are acceptable across the board, and most importantly our clients love the work we're doing.

I can't think of any other way to measure the quality of what we're doing. And by those metrics, AI has made us better, not worse.

I should write a blog post to outline more of this in detail.

i work on cutting edge c++ system programming and we are using codex for everything now, it’s pretty impressive honestly what it can do

From another comment above:

> Our projects are closed source due to our clients owning the code, but I can offer anecdote. We have a client whose business operates on 2-3 very niche SaaS applications in the veterinary/animal medicine space. In a span of about 6 months, we completely ripped out 2 of those 3 and are working on replacing the 3rd one right now. We've done this with a single senior engineer working with the client between 20-40 hours per week with no major regressions. The business has been able to continue working as usual with no disruptions throughout this process.

> Obviously it's hard to measure this objectively, but I can't imagine having done this pre-AI with zero downtime and having replaced those SaaS applications in that timeframe.

If you carefully review the code then you're not doing what Armstrong was talking about. If you're not reviewing the code, then you don't really know what it is that the AI built. Of course it passes tests; that's not the problem. The problem is that the code is complicated and obtuse, even if it doesn't seem that way on the surface, and after some rounds of evolution, the agents are no longer able to evolve or maintain the code.

The difference between it's working now and it will continue working in two years is exactly the problem with AI-generated code because the tests can't tell you that, and you don't know which one you have if you don't look really carefully.

Our projects are closed source due to our clients owning the code, but I can offer anecdote. We have a client whose business operates on 2-3 very niche SaaS applications in the veterinary/animal medicine space. In a span of about 6 months, we completely ripped out 2 of those 3 and are working on replacing the 3rd one right now. We've done this with a single senior engineer working with the client between 20-40 hours per week with no major regressions. The business has been able to continue working as usual with no disruptions throughout this process.

Obviously it's hard to measure this objectively, but I can't imagine having done this pre-AI with zero downtime and having replaced those SaaS applications in that timeframe.

That reminds me of a chart I saw posted in HN comments recently that someone created tracking bullet points in Claude Code release notes per day that was cited as "proof of a step change" in AI development over the last year. It showed like a dozen or so on average that jumped to to like over 50 one month and stayed around that number.

(Not the exact same chart but similar idea, I guess it's sort of a meme: https://imgur.com/a/YrNGYOR)

So I looked at the most recent CC release notes on Github and the majority look like this:

  Fixed /clear not resetting the terminal tab title after a conversation
  Fixed session title chip from /rename disappearing while a permission or other dialog is active
  Fixed agent panel below the prompt being hidden when subagents are running (regression in 2.1.122)
  Fixed external-editor handoff (Ctrl+G) blanking the conversation history above the prompt
  Fixed /context dumping its rendered ASCII visualization grid into the conversation, wasting ~1.6k tokens per call
  Fixed OAuth refresh race after wake-from-sleep that could log out all running sessions
  Fixed 1-hour prompt cache TTL being silently downgraded to 5 minutes
  Fixed cache-miss warning appearing spuriously after /clear or compaction when changing /effort or /model

I'd be extremely interested to know what percentage of these were just fixing last week's Claude Code written PR that no human ever set eyes on.

But hey, all that churn looks great on charts being circulated on social media as free advertising for their flagship product (and consequently the company's valuation) so never mind, LGTM!

I should put together a blog post to share more, but unfortunately it is more "trust me bro" at this stage. You can see a few other comments where I replied: we do have subjective evidence that seems to suggest to me that we're moving much faster than we could've moved in the past.

Of course, it's not just shipping, it's shipping stably in a way that doesn't disrupt the day-to-day operations of the businesses we're working for. One client that comes to mind has 2-3 niche SaaS applications that they used independently for various workloads. We completely replaced 2 of those without any disruptions to their business in about 6 months (no, we did not replace it feature-for-feature; we just built what they needed.)