Comment by jrockway

I agree with this experience. LLMs are great and save me a lot of time, but they need frequent nudges to avoid going down a completely wrong path. I just don't feel like the management dream of "every engineer has 3 agents working for them full time" is quite a reality yet. I'm not saying it won't get there, or that I feel secure being a software engineer until I'm of retirement age, but I also think it's important to understand the limitation of the tools. You do need to know your codebase. You do need to iterate on small chunks of it at a time. You do need to carefully understand every line of code you're putting into production. LLMs are amazing at generating a lot of proposals, but you need to carefully consider each one.

Most surprising to me about the article was the desire for OP's company to use AI for design docs. I feel like AI-generated design docs are some of the worst -- basically treating English as a programming language. They aren't enjoyable to read, and they often miss the forest for the trees. A human written sketch explaining why we're here and what we're working towards is still meaningful and important. If you want code-level details of every decision and algorithm, we have code for that.

I have mixed feelings on whether these documents are useful LLM inputs. I did a project where I carefully paired with Claude Code on producing a specification that another model would actually implement. I'm not sure it saved me any time, and it was very un-fun. (I kind of blame Opus 4.7 xhigh for this. It ain't speedy.) I feel like I can nitpick code to get exactly what I want, but defining exactly what I want an auto-mode LLM to go and do, in English, is much more difficult. I don't think the PLAN.md I generated would have been useful for a human trying to understand the system (too verbose), and Claude Code still made its usual mistakes that I have reminded it a billion times not to make (t.Context() in tests, not context.Background()!), so I'm just not sure it was worth it. I would say I probably wouldn't do it again in the near future. A rough sketch to get humans on board and to get the high level details worked out, written by hand, and then pairing with the LLM on actually typing in the code seems the most productive to me. But I do try to go outside my comfort zone once in a while to test the edges of these tools. They are very impressive and are worth a lot of the hype. (I know I will never write a YAML file again. I hate it more than anything, and Claude is amazing at it. But I worry I wouldn't feel the same way if I hadn't already had 8 years of k8s experience.)