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Engineering management after the cost of code collapsed (karimjedda.com)
dbingham 16 minutes ago [-]
I think most of this is correct, in spite of potentially being built on a bad assumption.

The assumption is that LLMs should be writing the code and human engineers reviewing and verifying the LLM output. And that this pushes the cost of producing down. And I fundamentally disagree with that.

Every time I ask LLMs to write code, even with Opus 4.8 (haven't tried it with Opus 5 yet), what I get ends up being totally rewritten. LLMs still aren't good at writing maintainable code. Can they write plausibly functional code? Yes. But it won't survive the long term. People using LLMs to write all their code are gambling on them eventually getting to a point where the LLMs can fix their own code. It's possible, but I wouldn't necessarily bet on it.

Where I have found immense value from LLMs is in code review. Repeated review by LLMs catches an amazing amount of potential issues. They really shine on security review, but are very effective with any kind of review.

The other thing that the "LLMs write code camp" misunderstands is that writing was never the bottleneck. Understanding was. And understanding the code is still the bottleneck. But understanding is truly gained during the writing loop. The understanding you gain from pure reading or code review is marginal compared to the understanding you gain while writing.

Most of the time previously spent writing was actually spent updating and deepening our understanding of the system under development. There's no replacement for that understanding in a world where LLMs are doing the writing.

But if you flip it: humans write, LLMs review, then you still get a major gain -- not in speed, but in quality. And you keep the understanding loop intact. I would propose that this might be the best way to deploy LLMs.

dwayneII 2 minutes ago [-]
I write code in Go in an established codebase. 90% of the time the LLM gets a basic api/feature right and fully e2e tested as long as I give it enough business context in the prompt. The other 10% of the time I have to do some follow up prompts to either change the behaviour or change the approach of a given step in the flow or just to point out that the wrong pattern was used and please rather use our codebase standard. I haven’t actually hand-written code in well over a year. Is this way faster? Absolutely. Does it lead to better code? Yes, because I have time to write all the regression tests that keep the behaviour as I wanted it when others come bungling around.
lukan 10 minutes ago [-]
" But understanding is truly gained during the writing loop. The understanding you gain from pure reading or code review is marginal compared to the understanding you gain while writing."

Debugging code step by step is how I understand complicated code.

marginalia_nu 26 minutes ago [-]
Code was very rarely the bottleneck in the first place.

If programmer productivity was something we actively optimized for, we wouldn't have crammed programmers like sardines in warm and noisy open floor offices with 2000 ppm CO2 levels and then further constantly interrupt them with emails and slack pings and meetings all day long, Jira rigmarole wouldn't make up a significant portion of what they did, programmers would have instead mostly been thinking and programming.

We've always had the ability to 2X if not 10X the output of each and every one of those poor souls. You don't end with this sort of programming purgatory because it's a productivity optimum, it very clearly isn't, but because it's a billable hours optimum and/or an org chart clout optimum and/or because of Jevons paradox got hands even in business management and the IT department was allocated too many dollars.

raverbashing 22 minutes ago [-]
> Code was very rarely the bottleneck in the first place.

I disagree. Kinda

What AI has made much simpler is that you don't have to waste time checking docs and have the best autocomplete system by a long shot - this was a bottleneck unless you were doing Java or some other language with "perfect" AC

What AI made "kinda easier": solving for usual problems. The stuff you would search Stack Overflow, or think a couple of minutes for an optimized solution - not a bottleneck but not 100% smooth neither

You still have to test and validate your code. AI made this easier-ish but this is still where I see manual work being needed (even if you are automating tests - you still have to think on what you want the code to do)

bitlad 10 minutes ago [-]
I disagree. Coordinating 100 folks to align on a problems statement with "agile" and sprints was always the biggest bottleneck. Difference in opinion, internal politics is always a bottleneck.

I think now, code is the bottleneck. Just because you can generate million lines of code, people with different skill level think they are accomplishing the task, testing, merge conflicts, trust has become the bottleneck.

marginalia_nu 17 minutes ago [-]
This just says that we can output code faster. I'm saying that the rate at which we output code wasn't the thing that was slowing down development. We've always been able to increase that even without AI by adjusting the working environment and removing obstacles to programming.

In larger organizations, quite often it's the business that is holding back development. They can only handle so much change and speed needs direction to be velocity. Drafting requirements is generally much slower than implementing them.

Like the number one complaint from programmers has been that they don't get to do programming. They want to write code, not update jiras or spend hours in meetings.

baron3dl 35 minutes ago [-]
What is the right, best software organization in the current era of AI coding? This question is critical and wholly unanswered in comprehensive research along the same axis as Accelerate (2018, Forsgren, Humble, Kim).

There are a lot of (excruciatingly) long-form posts about what folks are pioneering but not a whole lot of follow up about what failed. Where are the short posts on the negative space? How did halving your staff work out? Flattening your org? All those dark factories, what haven't they produced? How about all the other things tried, failed, and unceremoniously scrapped?

We need to explore and communicate the negative space more efficiently. Don't repeat the same mistakes, and don't make me read 2653 words when 300 do it better.

VeninVidiaVicii 11 minutes ago [-]
Hard to say what caused what, but the internet seems to mistake verbosity for authority, and so does AI.
mgaunard 48 minutes ago [-]
The cost of code actually increased; code debt is being accumulated faster than we can clean it up.
VeninVidiaVicii 9 minutes ago [-]
Yeah but look how much there is! Aren’t you impressed?
georgeburdell 14 minutes ago [-]
In my experience, management is mostly pissing away the gains made by AI by either:

1. Pursuing polish and quality beyond previous norms

2. Replacing $100/mo/seat SAAS with something coded by a junior costing $200/day to develop over months.

The cost of code approaches zero, but the cost of communication, having accountability, and hosting remains the same, and so individuals need to only coordinate to the extent that those things remain finite resources. Management needs to stop insisting that their directs adopt each others vibe coded tooling.

siliconc0w 17 minutes ago [-]
I don't think it changes much for good managers. It should always be able setting people and processes up so the team can land durable measurable impact. The managers that thought the job of software engineers was to write code were bad managers. PRs or LoC were never good metrics.
jboss10 36 minutes ago [-]
> Gemini 4 helped with the editing.

Does this guy have access to Gemini 4 already?

I'm guessing Gemma 4 was happy to be mistaken for Gemini and didn't catch this mistake.

trollbridge 32 minutes ago [-]
“Helping” is doing some heavy lifting in that sentence! It appears to be 100% AI.
ilovefood 31 minutes ago [-]
Yes correct, Gemma. Will correct it shortly.
dataplumb3r 14 minutes ago [-]
If you wrote an initial draft you should consider using a better model or just posting what you wrote.

The smaller models can be sufficient for coding but for document writing not highly specific I've yet to be satisfied with AI output. I certainly wouldn't expect gemma to produce good outputs.

add-sub-mul-div 28 minutes ago [-]
You don't build credibility by putting out slop and correcting it every time someone points out that it's wrong. You think it's our job to proofread and fact-check?
ilovefood 22 minutes ago [-]
A genuine mistake. I make these posts for myself, mainly to structure & share my thoughts. Let me know if you find other errors, I appreciate the feedback.
raffraffraff 12 minutes ago [-]
My take, as a non-coder (well, not software engineering, I write 'code' but it's infra, and utilities in go/bash/pythong)...

I work at a company where the biggest problems are not 'writing code', they are:

- Organising teams

- Designing the system

- Prioritisation of work

The fuckups that we make on a daily bases are not 'code errors' they are failures in THOSE three things. I'll go into detail if anyone cares.

convolvatron 2 minutes ago [-]
don't forget 'actually making decisions'
cineticdaffodil 1 hours ago [-]
Can a llm predict the price of a change to a codebase in tokens and predict the origin of the price, aka cam it see good and bad architecture?
arjie 53 minutes ago [-]
Some code bases better than others but the top models can.
mathgeek 1 hours ago [-]
Ask it to do so, would love to know your results.
cineticdaffodil 16 minutes ago [-]
I did, the problem is that you need a sort of standardized feature change to compare similar repos. So the metric is relative only to same projects lacking that same feature. So no, its a useless thing. No architecture score comparisson between apples and oranges.
22 minutes ago [-]
happytoexplain 25 minutes ago [-]
Code was never expensive.
doug_durham 1 minutes ago [-]
Code was always expensive. Entire industries of design tools cropped up simply to avoid writing the wrong code since it is so expensive. There are entire journals dedicated to this. Organizations are fixated on making sure that the right code is written since the cost of getting that wrong is so great.
trollbridge 33 minutes ago [-]
Pangram reports this post was 100% AI generated.
bonzini 7 minutes ago [-]
It's depressingly hard to find one that isn't. You see the title, think this might be interesting, and puke by the second paragraph.
j45 1 hours ago [-]
Software development has always evolved. Sometimes slowly, sometimes quicker.

LLMs have brought a different unlock, and for everything we're seeing become easier, it allows people learn to use the tools to take on solving problems that couldn't be approached before.

antonvs 58 minutes ago [-]
The worse problem is blog posts after the cost of writing collapsed.

Not everything has to be written as though it’s a middle manager’s idea of what makes for a good TED talk.

nvme0n1p1 45 minutes ago [-]
I closed the tab after seeing the AI hero image. Good to know I didn't miss anything.
JSR_FDED 36 minutes ago [-]
You did miss something. But the picture doesn’t help…why would you start an article with an image that telegraphs “low effort”?
zo1 39 minutes ago [-]
Reading the domain-name had the same effect for me.
obmelvin 35 minutes ago [-]
You discount people's blogs based on them having a non-western name? Maybe I've misunderstood your comment, but the domain is just their name.
ilovefood 34 minutes ago [-]
I can't change my name, but happy to change the hero picture :))
aplummer 49 minutes ago [-]
I read this entire article and didn’t sniff AI, plus it had some good insights…?
nwah1 47 minutes ago [-]
Feels like a human-authored outline that was run through AI to make it into an article.
ilovefood 37 minutes ago [-]
I've written this myself, Gemini 4 did a bit of editing:

> What follows is a cleaned-up version of notes I accumulated over the past year. Gemini 4 helped with the editing.

The image is made by an AI image generator on fal.ai. It's better I spare you all my design skills :)

hgomersall 44 minutes ago [-]
Well it contains a typo, so it made a cock up.
lcampbell 37 minutes ago [-]
More than that, the AI disclaimer itself is a hallucination:

> Gemini 4 helped with the editing.

There is no Gemini 4, unless the author is writing from the future.

ilovefood 32 minutes ago [-]
You are correct, my bad. I meant to write Gemma 4. I'll update.
sodapopcan 43 minutes ago [-]
AI image, though.
JSR_FDED 40 minutes ago [-]
Yes the article took a while to get going, but once it did it was thoughtful and well reasoned.
ilovefood 38 minutes ago [-]
Thank you very much for the kind words :)
phrones1s 10 minutes ago [-]
[flagged]
lardosaurusrex 3 minutes ago [-]
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CurbStomper 1 hours ago [-]
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