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Zuckerberg says AI agent development going slower than expected

reuters.com

211–220 of 661 posts

Re: Zuckerberg says AI agent development going slower than expected

#211
post #182

Earlier quoted context omitted.

In my limited testing Fable is far better at obeying CLAUDE.MD than Opus is.

From what I can tell, the "established wisdom" is to get Fable to plan and Opus to implement (for cost purposes). The problem there is that Opus could ignore whatever it likes from Fable's plan.

Honestly this is where I would have fable generate a checklist and you just monitor opus to ensure it is going through the checklist. I think ignore is often the result of a context that is not focused enough.

Re: Zuckerberg says AI agent development going slower than expected

#212

Earlier quoted context omitted.

I’m convinced the magic bullet is deterministic checks. Linters, static analyzers, etc. Whatever you can do to create deterministic gates that the LLM simply must overcome to reach a “done” state, do it. Has been making a huge difference for my team, but sister teams are so invested in writing the perfect Make No Mistakes prompt that they just can’t see it. Basically I treat it like a junior dev. We don’t get junior…

Wouldn't have helped, sibling comment: https://news.ycombinator.com/item?id=48797883 Architectural decisions are not lintable.

You can have a separate LLM as a brutal enforcer of an architecture decision. Works pretty well in the right harness.

Re: Zuckerberg says AI agent development going slower than expected

#213
post #173

This is a thinner TechCrunch rewrite of this Reuters story: https://finance.yahoo.com/technology/ai/articles/exclusive-z... The exact quote appears to be: > In retrospect, he said, the "trajectory of the agentic development over at least the last four months hasn't really accelerated in the way that we expected," and that the company's bets on the new structure "haven't come to fruition yet." Zuckerberg was referring…

(We merged the comments from https://news.ycombinator.com/item?id=48795826)

Re: Zuckerberg says AI agent development going slower than expected

#214

I was worried this time last year that by this time this year, companies would have slashed their engineering teams down to a handful and everything would be driven by mostly autonomous agents with human guidance. But it just hasn't happened. Do I write all my code with an agent now? Yes. Can you just give an agent a desired outcome and let it work, unsupervised? Absolutely not. I can produce more code than I used to…

I think it doesn't prove much that it hasn't happened yet. Companies might just be moving slower than you think, and are still planning on doing it. And, in many corners, "don't manually write code" is being joined by "don't manually read code" as an attractive principle.

Re: Zuckerberg says AI agent development going slower than expected

#215

I was worried this time last year that by this time this year, companies would have slashed their engineering teams down to a handful and everything would be driven by mostly autonomous agents with human guidance. But it just hasn't happened. Do I write all my code with an agent now? Yes. Can you just give an agent a desired outcome and let it work, unsupervised? Absolutely not. I can produce more code than I used to…

I think it doesn't prove much that it hasn't happened yet. Companies might just be moving slower than you think, and are still planning on doing it. And, in many corners, "don't manually write code" is being joined by "don't manually read code" as an attractive principle.

The Yale economist Pascual Restrepo, who is well regarded researcher in automation, doesn't think it will happen for most jobs.

https://fortune.com/2026/04/04/ai-jobs-future-not-important-...

Re: Zuckerberg says AI agent development going slower than expected

#216

I was worried this time last year that by this time this year, companies would have slashed their engineering teams down to a handful and everything would be driven by mostly autonomous agents with human guidance. But it just hasn't happened. Do I write all my code with an agent now? Yes. Can you just give an agent a desired outcome and let it work, unsupervised? Absolutely not. I can produce more code than I used to…

I think it doesn't prove much that it hasn't happened yet. Companies might just be moving slower than you think, and are still planning on doing it. And, in many corners, "don't manually write code" is being joined by "don't manually read code" as an attractive principle.

you might have to think the way through though and these companies are already being caught up with the huge token costs at the same time.

There was an interesting comment during the cloudflare layoffs (partially driven by the fact that the company was bleeding money also because of its token costs from one estimate being 5* million$ per month (I feel so silly that I accidentally had written/meant 500 and had kentonv do the stats on that part :-( Sorry kentonv!), don't quote me on that though)

The part was that there is only an enough marketshare in the first place. Cloudflare was doing some crazy experiments like operating matrix on cf workers and wordpress alternative and fediverse and so much stuff.

So they basically spent 10x the amount of token (and the token costs) and I imagine as such the reading code of that part was getting sidelined as the attractive principle you are talking about.

Yet the market can't bring an actual demand 10x times though. These are things which nudge a user slightly but the actual impact on user growth isn't 10x or even justifiable within some cases given the costs.

Yet at the same time driving up the people who actually know their stuff and firing them because of the token costs. The people who have actually mitigated some of the largest DDOS attacks and are the backbone behind cf cash-cow (enterprise payments) is the fact that they have had the experience and entreprise knowledge about these things, yet they are literally removing that by firing workers and oh replacing them with interns. (They got 1111 interns and fired 1100 employees or something iirc)

It's weird and I have talked to some people about it but there is a disconnect between what management is hearing about AI and the ground reality of things. Reviewing code is becoming the bottleneck but if you don't review code and are shipping things to production, then you can get fired as I have talked about in some of my other comments sharing a story about how a guy shipped code to prod and the response was "but claude generated it" and got fired because the company basically said, look we basically don't care if it was generated by claude but the responsibility was on you to check it (review) and because the commit was done by you, you are gonna be treated responsible and he got fired from his job.

Yet this was the same company which was asking its employee to play around with claude at their free time, the manager of the employee I talked to being the most automatable person, the company employees working till 1 AM because they were saying to management that things were fine but they were being burried under the technical debt,that employee that I talked to got honest with the management and told reality and the management treated them as a person who didn't know AI or were the odd one out.

Sooo I don't know actually to be honest.

TLDR: reviewing code is being treated as the bottleneck but it is also the only thing stopping your company from imploding under technical debt, actual debt because of token costs etc. I remain skeptical if we should treat it as a bottleneck or as a safeguard mechanism. After all, if nobody's in the loop then whose responsible?

Reviewing code isn't a bottleneck so much so its a safeguard mechanism in my opinion. Also things differ in corporate land and hobby land and I would prefer corporate to not be using the practices that I do with how I do things for fun in my hobby time.

Side note: Even more so, I think I am a LiteLLM security working group maintainer and I have seen first hand on how much damage it can do in supply chain even when things were done right from LiteLLM side and the fault was within the side of ironically a security product that they used called Trivy.

There are things which you can do to be better prone to supply chain attacks in general but there is no full bullet proof way of doing so and in such.

Caution (should) be taken when dealing with corporate systems and as such I sweat a little when anyone suggests code review to be completely eliminated. Things (are/can be) different in hobby/prototyping world though.

Re: Zuckerberg says AI agent development going slower than expected

#217
The last two years have been perfect for accumulating tech debt.

2023 you would have probably implemented your Agents with LangChain and RAG

2025 you'd use MCP and OpenAI/Anthropic Agent SDK.

2027 you will use a workspace frameworks (Amazon, Microsoft) sensor libraries and world models.

Agents are a fantastic generational technologies, but in mid-2026 the environment they are operating in is quickly changing.

The only way forward is to stay agile, understand model and vendor risk.

Re: Zuckerberg says AI agent development going slower than expected

#218

I was worried this time last year that by this time this year, companies would have slashed their engineering teams down to a handful and everything would be driven by mostly autonomous agents with human guidance. But it just hasn't happened. Do I write all my code with an agent now? Yes. Can you just give an agent a desired outcome and let it work, unsupervised? Absolutely not. I can produce more code than I used to…

> Can you just give an agent a desired outcome and let it work, unsupervised? Absolutely not. Ignoring instructions - whether in AGENTS.md or my prompt - is the worst of it, and it routinely happens. It just waives things that I explicitly told it to do as part of the design. Vibe coders (in the true sense, zero oversight) claim that you just need to prompt it carefully. That's completely untrue when faced with your…

> that I explicitly told it

Try writing it in first person instead of second person or neutral.

A while ago someone had a similar complaint on here and shared some example lines, and that popped out at me immediately. However much structure we've wrapped these in, they're still text generators trained on all sorts of things, and if you think about a narrative where first and second person speech would be used, try to imagine context: In first person, it's most likely a description of something as it happens or someone planning what they will do. But in second person, especially command form, you open up to the possibility of commands being ignored, misunderstood, or actively rebelled against.

Whoever that was back then did some quick tests and found the pattern held, first person got it to follow far more reliably.

Re: Zuckerberg says AI agent development going slower than expected

#219

I was worried this time last year that by this time this year, companies would have slashed their engineering teams down to a handful and everything would be driven by mostly autonomous agents with human guidance. But it just hasn't happened. Do I write all my code with an agent now? Yes. Can you just give an agent a desired outcome and let it work, unsupervised? Absolutely not. I can produce more code than I used to…

I think it doesn't prove much that it hasn't happened yet. Companies might just be moving slower than you think, and are still planning on doing it. And, in many corners, "don't manually write code" is being joined by "don't manually read code" as an attractive principle.

Sure but there's also little reason to think we'll be able to replace xyz role entirely with software next month, or year, or decade. It's easy to disprove claims about the future; it's quite difficult to make believable ones.

Re: Zuckerberg says AI agent development going slower than expected

#220

I was worried this time last year that by this time this year, companies would have slashed their engineering teams down to a handful and everything would be driven by mostly autonomous agents with human guidance. But it just hasn't happened. Do I write all my code with an agent now? Yes. Can you just give an agent a desired outcome and let it work, unsupervised? Absolutely not. I can produce more code than I used to…

"companies would have slashed their engineering teams down to a handful and everything would be driven by mostly autonomous agents with human guidance. But it just hasn't happened. "

It never was going to happen.

Always the same story: https://en.wikipedia.org/wiki/Gartner_hype_cycle#/media/File...

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