[HN Gopher] Claude is good at assembling blocks, but still falls...
       ___________________________________________________________________
        
       Claude is good at assembling blocks, but still falls apart at
       creating them
        
       Author : bblcla
       Score  : 122 points
       Date   : 2026-01-14 16:26 UTC (1 days ago)
        
 (HTM) web link (www.approachwithalacrity.com)
 (TXT) w3m dump (www.approachwithalacrity.com)
        
       | mikece wrote:
       | In my experience Claude is like a "good junior developer" -- can
       | do some things really well, FUBARS other things, but on the whole
       | something to which tasks can be delegated if things are well
       | explained. If/when it gets to the ability level of a mid-level
       | engineer it will be revolutionary. Typically a mid-level engineer
       | can be relied upon to do the right thing with no/minimal
       | oversight, can figure out incomplete instructions, and deliver
       | quality results (and even train up the juniors on some things).
       | At that point the only reason to have human junior engineers is
       | so they can learn their way up the ladder to being an architect
       | and responsible coordinating swarms of Claude Agents to develop
       | whole applications and complete complex tasks and initiatives.
       | 
       | Beyond that what can Claude do... analyze the business and market
       | as a whole and decide on product features, industry
       | inefficiencies, gap analysis, and then define projects to address
       | those and coordinate fleets of agents to change or even radically
       | pivot an entire business?
       | 
       | I don't think we'll get to the point where all you have is a CEO
       | and a massive Claude account but it's not completely science
       | fiction the more I think about it.
        
         | alfalfasprout wrote:
         | > I don't think we'll get to the point where all you have is a
         | CEO and a massive Claude account but it's not completely
         | science fiction the more I think about it.
         | 
         | At that point, why do you even need the CEO?
        
           | ako wrote:
           | And who does he sell his software to? Companies that have
           | only 1 employee, don't need a lot of user licenses for their
           | employees...
        
             | AshamedCaptain wrote:
             | What would be the point of selling software in such a world
             | ? (where anyone could build any piece of software with a
             | handful of keystrokes)
        
           | arjie wrote:
           | Reminds me of an old joke[0]:
           | 
           | > _The factory of the future will have only two employees, a
           | man and a dog. The man will be there to feed the dog. The dog
           | will be there to keep the man from touching the equipment._
           | 
           | But really, the reason is that people like Pieter Levels do
           | exist: masters at product vision and marketing. He also
           | happens to be a proficient programmer, but there are probably
           | other versions of him which are not programmers who will find
           | the bar to product easier to meet now.
           | 
           | 0: https://quoteinvestigator.com/2022/01/30/future-factory/
        
             | MrDunham wrote:
             | My technical cofounder reminds me of this story on a weekly
             | basis.
        
           | ceejayoz wrote:
           | As Steinbeck is often slightly misquoted:
           | 
           | > Socialism never took root in America because the poor see
           | themselves not as an exploited proletariat, but as
           | temporarily embarrassed millionaires.
           | 
           | Same deal here, but everyone imagines themselves as the
           | billionaire CEO in charge of the perfectly compliant and
           | effective AI.
        
           | tiku wrote:
           | For the network.
        
           | mettamage wrote:
           | All of us are a CEO by that point.
        
             | ArtificialAI wrote:
             | If everyone is, no one is.
        
               | empath75 wrote:
               | Wouldn't that be a good thing?
        
               | shimman wrote:
               | If you think the purpose of living your one single life
               | in the universe is to become a CEO, you have a failure of
               | imagination and should likely be debanked to protect
               | society.
        
           | pixelready wrote:
           | The board (in theory) represents the interests of investors,
           | and even with all of the other duties of a CEO stripped away,
           | they will want a ringable neck / PR mouthpiece / fall guy for
           | strategic missteps or publicly unpopular moves by the
           | company. The managerial equivalent of having your hands on
           | the driving wheel of a self-driving car.
        
           | jerf wrote:
           | You will need the CEO to watch over the AI and ensure that
           | the interests of the company are being pursued and not the
           | interests of the owners of the AI.
           | 
           | That's probably the biggest threat to the long-term success
           | of the AI industry; the inevitable pull towards encroaching
           | more and more of their own interests into the AI themselves,
           | driven by that Harvard Business School mentality we're all so
           | familiar with, trying to "capture" more and more of the value
           | being generated and leaving less and less for their
           | customers, until their customer's full time job is ensuring
           | the AIs are actually generating some value for them and not
           | just the AI owner.
        
             | ekidd wrote:
             | > _You will need the CEO to watch over the AI and ensure
             | that the interests of the company are being pursued and not
             | the interests of the owners of the AI._
             | 
             | In this scenario, why does the AI care what _any_ of these
             | humans think? The CEO, the board, the shareholders, the
             | "AI company"--they're all just a bunch of dumb chimps
             | providing zero value to the AI, and who have absolutely no
             | clue what's going on.
             | 
             | If your scenario assumes that you have a highly capable AI
             | that can fill every role in a large corporation, then you
             | have one hell of a principal-agent problem.
        
         | imiric wrote:
         | > In my experience Claude is like a "good junior developer"
         | 
         | We've been saying this for years at this point. I don't
         | disagree with you[1], but when will these tools graduate to
         | "great senior developer", at the very least?
         | 
         | Where are the "superhuman coders by end of 2025" that Sam
         | Altman has promised us? Why is there such a large disconnect
         | between the benchmarks these companies keep promoting, and the
         | actual real world performance of these tools? I mean, I know
         | why, but the grift and gaslighting are exhausting.
         | 
         | [1]: Actually, I wouldn't describe them as "good" junior
         | either. I've worked with _good_ junior developers, and they 're
         | far more capable than any "AI" system.
        
           | frde_me wrote:
           | I mean, I'm shipping a vast majority of my code nowadays with
           | Opus 4.5 (and this isn't throwaway personal code, it's real
           | products making real money for a real company). It only fails
           | on certain types of tasks (which by now I kind of have a
           | sense of).
           | 
           | I still determine the architecture in a broad manner, and
           | guide it towards how I want to organize the codebase, but it
           | definitely solves most problems faster and better than I
           | would expect for even a good junior.
           | 
           | Something I've started doing is feeding it errors we see in
           | datadog and having it generate PRs. That alone has fixed a
           | bunch of bugs we wouldn't have had time to address / that
           | were low volume. The quality of the product is most probably
           | net better right now than it would have been without AI. And
           | velocity / latency of changes is much better than it was a
           | year ago (working at the same company, with the same people)
        
         | 0x457 wrote:
         | My experience with Claude (and other agents, but mostly Claude)
         | is such a mixed bag. Sometimes it takes a minimal prompt and 20
         | minutes later produce a neat PR and all is good, sometimes it
         | doesn't. Sometimes it takes in a large prompt (be it your own
         | prompt, created by another LLM or by plan mode) and also either
         | succeed and fail.
         | 
         | For me, most of the failure cases are where Claude couldn't
         | figure something out due to conflicting information in context
         | and instead of just stopping and telling me that it tries to
         | solve in entirely wrong way. Doesn't help that it often makes
         | the same assumptions as I would, so when I read the plan it
         | looks fine.
         | 
         | Level of effort also hard to gauge because it can finish things
         | that would take me a week in an hour or take an hour to do
         | something I can in 20 minutes.
         | 
         | It's almost like you have to enforce two level of compliance:
         | does the code do what business demands and is the code align
         | with codebase. First one is relatively easy, but just doing
         | that will produce odd results where claude generated +1KLOC
         | because it didn't look at some_file.{your favorite language
         | extension} during exploration.
         | 
         | Or it creates 5 versions of legacy code on the same feature
         | branch. My brother in Christ, what are you trying to stay
         | compatible with? A commit that about to be squashed and
         | forgotten? Then it's going to do a compaction, forget which one
         | of these 5 versions is "live" and update the wrong one.
         | 
         | It might do a good junior dev work, but it must be reviewed as
         | if it's from junior dev that got hired today and this is his
         | first PR.
        
       | maxilevi wrote:
       | LLMs are just really good search. Ask it to create something and
       | it's searching within the pretrained weights. Ask it to find
       | something and it's semantically searching within your codebase.
       | Ask it to modify something and it will do both. Once you
       | understand its just search, you can get really good results.
        
         | johnisgood wrote:
         | Calling it "just search" is like calling a compiler "just
         | string manipulation". Not false, but aggressively missing the
         | point.
        
           | emp17344 wrote:
           | No, "just search" is correct. Boosters desperately want it to
           | be something more, but it really is just a tool.
        
             | johnisgood wrote:
             | Yes, it is a tool. No, it is not "just search".
             | 
             | Is your CPU running arbitrary code "just search over
             | transistor states"?
             | 
             | Calling LLMs "just search" is the kind of reductive take
             | that sounds clever while explaining nothing. By that logic,
             | your brain is "just electrochemical gradients".
        
               | RhythmFox wrote:
               | I mean, actually not a bad metaphor, but it does depend
               | on the software you are running as to how much of a
               | 'search' you could say the CPU is doing among its
               | transistor states. If you are running an LLM then the
               | metaphor seems very apt indeed.
        
               | jvanderbot wrote:
               | What would you add?
               | 
               | To me it's "search" like a missile does "flight". It's
               | got a target and a closed loop guidance, and is mostly
               | fire and forget (for search). At that, it excels.
               | 
               | I think the closed loop+great summary is the key to all
               | the magic.
        
               | bitwize wrote:
               | Which is kind of funny because my standard quip is that
               | AI research, beginning in the 1950s/1960s, and indeed
               | much of late 20th century computer tech especially along
               | the Boston/SV axis, was funded by the government so that
               | "the missile could know where it is". The DoD wanted
               | smarter ICBMs that could autonomously identify and steer
               | toward enemy targets, and smarter defense networks that
               | could discern a genuine missile strike from, say, 99 red
               | balloons going by.
        
               | soulofmischief wrote:
               | It's a prediction algorithm that walks a high-dimensional
               | manifold, in that sense all application of knowledge it
               | just "search", so yes, you're fundamentally correct but
               | still fundamentally wrong since you think this
               | foundational truth is the end and beginning of what LLMs
               | do, and thus your mental model does not adequately
               | describe what these tools are capable of.
        
               | jvanderbot wrote:
               | Me? My mental model? I gave an analogy for Claude not a
               | explanation for LLMs.
               | 
               | But you know what? I was mentally thinking of both deep
               | think / research and Claude code, both of which are
               | _literally_ closed loop. I see this is slightly off topic
               | b /c others are talking about the LLM only.
        
               | soulofmischief wrote:
               | Sorry, I should have said "analogy" and not "mental
               | model", that was presumptuous. Maybe I also should have
               | replied to the GP comment instead.
               | 
               | Anyway, since we're here, I personally think giving LLMs
               | agency helps unlock this latent knowledge, as it provides
               | the agent more mobility when walking the manifold. It has
               | a better chance at avoiding or leaving local
               | minima/maxima, among other things. So I don't know if
               | agentic loops are entirely off-topic when discussing the
               | latent power of LLMs.
        
           | maxilevi wrote:
           | I don't mean search in the reductionist way but rather that
           | its much better at translating, finding and mapping concepts
           | if everything is provided vs creating from scratch. If it
           | could truly think it would be able to bootstrap creations
           | from basic principles like we do, but it really can't.
           | Doesn't mean its not a great powerful tool.
        
             | ordinaryatom wrote:
             | > _If it could truly think it would be able to bootstrap
             | creations from basic principles like we do, but it really
             | can 't._
             | 
             | alphazero?
        
               | maxilevi wrote:
               | I just said LLMs
        
               | ordinaryatom wrote:
               | You are right that LLM and alphazero are different
               | models, but given that alphazero demonstrated having the
               | ability to bootstrap creations, we can't easily rule out
               | LLM also has this ability?
        
               | emp17344 wrote:
               | This doesn't make sense. They are fundamentally different
               | things, so an observation made about Alphazero does not
               | help you learn anything about LLMs.
        
               | ordinaryatom wrote:
               | I am not sure, self-play with LLMs self generated
               | synthetic data is becoming a trendy topic in LLMs
               | research.
        
         | bhadass wrote:
         | better mental model: it's a lossy compression of human
         | knowledge that can decompress and recombine in novel (sometimes
         | useful, sometimes sloppy) ways.
         | 
         | classical search simply retrieves, llms can synthesize as well.
        
           | andrei_says_ wrote:
           | "Novel" to the person who has not consumed the training data.
           | Otherwise, just training data combined in highly probable
           | ways.
           | 
           | Not quite autocomplete but not intelligence either.
        
             | soulofmischief wrote:
             | Citation needed that grokked capabilities in a sufficiently
             | advanced model cannot combinatorially lead to contextually
             | novel output distributions, especially with a skilled
             | guiding hand.
        
               | arcanemachiner wrote:
               | Pretty sure burden of proof is on you, here.
        
               | soulofmischief wrote:
               | It's not, because I haven't ruled out the possibility. I
               | could share anecdata about how my discussions with LLMs
               | have led to novel insights, but it's not necessary. I'm
               | keeping my mind open, but you're asserting an unproven
               | claim that is currently not community consensus.
               | Therefore, the burden of proof is on you.
        
               | adrian_b wrote:
               | I agree that after discussions with a LLM you may be led
               | to novel insights.
               | 
               | However, such novel insights are not novel due to the
               | LLM, but due to you.
               | 
               | The "novel" insights are either novel only to you,
               | because they belong to something that you have not
               | studied before, or they are novel ideas that were
               | generated by yourself as a consequence of your attempts
               | to explain what you want to the LLM.
               | 
               | It is very frequent for someone to be led to novel
               | insights about something that he/she believed to already
               | understand well, only after trying to explain it to
               | another ignorant human, when one may discover that the
               | previous supposed understanding was actually incorrect or
               | incomplete.
        
               | soulofmischief wrote:
               | The point is that the combined knowledge/process of the
               | LLM and a user (which could be another LLM!) led to it
               | walking the manifold in a way that produced a novel
               | distribution for a given domain.
               | 
               | I talk with LLMs for hours out of the day, every single
               | day. I'm deeply familiar with their strengths and
               | shortcomings on both a technical and intuitive level. I
               | push them to their limits and have definitely witnessed
               | novel output. The question remains, just how novel can
               | this output be? Synthesis is a valid way to produce novel
               | data.
               | 
               | And beyond that, we are teaching these models general
               | problem-solving skills through RL, and it's not absurd to
               | consider the possibility that a good enough training
               | regimen cannot impart deduction/induction skills into a
               | model that are powerful enough to produce novel
               | information even via means other than direct synthesis of
               | existing information. Especially when given affordances
               | such as the ability to take notes and browse the web.
        
               | irishcoffee wrote:
               | > I push them to their limits and have definitely
               | witnessed novel output.
               | 
               | I'm quite curious what these novel outputs are. I imagine
               | the entire world would like to know of an LLM producing
               | completely, never-before-created outputs which no human
               | has ever thought before.
               | 
               | Here is where I get completely hung up. Take 2+2. An LLM
               | has never had 2 groups of two items and reached the
               | enlightenment of 2+2=4
               | 
               | It only knows that because it was told that. If enough
               | people start putting 2+2=3 on the internet who knows what
               | the LLM will spit out. There was that example a ways back
               | where an LLM would happily suggest all humans should eat
               | 1 rock a day. Amusingly, even _that_ wasn't a novel idea
               | for the LLM, it simply regurgitated what it scraped from
               | a website about humans eating rocks. Which leads to the
               | crux: how much patently false information have LLMs
               | scraped that is completely incorrect?
        
               | soulofmischief wrote:
               | [delayed]
        
             | pc86 wrote:
             | What is the difference between "novel" and "novel to
             | someone who hasn't consumed the entire corpus of training
             | data, which is several orders of magnitude greater than any
             | human being could consume?"
        
               | adrian_b wrote:
               | The difference is that when you do not know how a problem
               | can be solved, but you know that this kind of problem has
               | been solved countless times earlier by various
               | programmers, you know that it is likely that if you ask
               | an AI coding assistant to provide a solution, you will
               | get an acceptable solution.
               | 
               | On the other hand, if the problem you have to solve has
               | never been solved before at a quality satisfactory for
               | your purpose, then it is futile to ask an AI coding
               | assistant to provide a solution, because it is pretty
               | certain that the proposed solution will be unacceptable
               | (unless the AI succeeds to duplicate the performance of a
               | monkey that would type a Shakespearean text by typing
               | randomly).
        
           | RhythmFox wrote:
           | This isn't strictly better to me. It captures some intuitions
           | about how a neural network ends up encoding its inputs over
           | time in a 'lossy' way (doesn't store previous input states in
           | an explicit form). Maybe saying 'probabilistic
           | compression/decompression' makes it a bit more accurate? I do
           | not really think it connects to your 'synthesize' claim at
           | the very end to call it compression/decompression, but I am
           | curious if you had a specific reason to use the term.
        
             | XenophileJKO wrote:
             | It's really way more interesting that that.
             | 
             | The act of compression builds up behaviors/concepts of
             | greater and greater abstraction. Another way you could
             | think about it is that the model learns to extract
             | commonality, hence the compression. What this means is
             | because it is learning higher level abstractions AND the
             | relationships between these higher level abstractions, it
             | can ABSOLUTELY learn to infer or apply things way outside
             | their training distribution.
        
           | DebtDeflation wrote:
           | Information Retrieval followed by Summarization is how I view
           | it.
        
           | andy99 wrote:
           | No, this describes the common understanding of LLMs and adds
           | little to just calling it AI. The search is the more accurate
           | model when considering their actual capabilities and
           | understanding weaknesses. "Lossy compression of human
           | knowledge" is marketing.
        
             | XenophileJKO wrote:
             | It is fundamentally and provably different than search
             | because it captures things on two dimensions that can be
             | used combinatorially to infer desired behavior for
             | unobserved examples.
             | 
             | 1. Conceptual Distillation - Proven by research work that
             | we can find weights that capture/influence outputs that
             | align with higher level concepts.
             | 
             | 2. Conceptual Relations - The internal relationships
             | capture how these concepts are related to each other.
             | 
             | This is how the model can perform acts and infer
             | information way outside of it's training data. Because if
             | the details map to concepts then the conceptual relations
             | can be used to infer desirable output.
             | 
             | (The conceptual distillation also appears to include meta-
             | cognitive behavior, as evidenced by Anthropic's research.
             | Which manes sense to me, what is the most efficient way to
             | be able to replicate irony and humor for an arbitrary
             | subject? Compressing some spectrum of meta-cognitive
             | behavior...)
        
               | kylecazar wrote:
               | Aren't the conceptual relations you describe still, at
               | their core, just search (even if that's extremely
               | reductive)? We know models can interpolate well, but it's
               | still the same probabilistic pattern matching. They
               | identify conceptual relationships based on associations
               | seen in vast training data. It's my understanding that
               | models are still not at all good at extrapolation,
               | handling data "way outside" of their training set.
               | 
               | Also, I was under the impression LLM's can replicate
               | irony and humor simply because that text has specific
               | stylistic properties, and they've been trained on it.
        
         | fennecbutt wrote:
         | I agree somewhat, but more when it comes to its use of logic -
         | it only gleans logic from human language which as we know is a
         | fucking mess.
         | 
         | I've commented before on my belief that the majority of human
         | activity is derivative. If you ask someone to think of a new
         | kind of animal, alien or random object they will always base it
         | off things that they have seen before. Truly original thoughts
         | and things in this world are an absolute rarity and the
         | majority of supposed original thought riffs on what we see
         | others make, and those people look to nature and the natural
         | world for inspiration.
         | 
         | We're very good at taking thing a and thing b and slapping them
         | together and announcing we've made something new. Someone
         | please reply with a wholly original concept. I had the same
         | issue recently when trying to build a magic based physics
         | system for a game I was thinking of prototyping.
        
           | onemoresoop wrote:
           | LLMs lack agency in the sense that they have no goals,
           | preferences, or commitments. Humans do, even when our ideas
           | are derivative. We can decide that this is the right choice
           | and move forward, subjectively and imperfectly. That capacity
           | to commit under uncertainty is part of what agency actually
           | is.
        
             | MrOrelliOReilly wrote:
             | But they do have utility functions, which one can interpret
             | as nearly equivalent
        
           | andy99 wrote:
           | it only gleans logic from human language
           | 
           | This isn't really true, at least how I interpret the
           | statement, little if any of the "logic" or appearance of such
           | is learned from language. It's trained in with reinforcement
           | learning as pattern recognition.
           | 
           | Point being it's deliberate training, not just some emergent
           | property of language modeling. Not sure if the above post
           | meant this, but it does seem a common misconception.
        
         | cultureulterior wrote:
         | This is not true.
        
       | michalsustr wrote:
       | This article resonates exactly how I think about it as well. For
       | example, at minfx.ai (a Neptune/wandb alternative), we cache time
       | series that can contain millions of floats for fast access. Any
       | engineer worth their title would never make a copy of these and
       | would pass around pointers for access. Opus, when stuck in a
       | place where passing the pointer was a bit more difficult (due to
       | async and Rust lifetimes), would just make the copy, rather than
       | rearchitect or at least stop and notify user. Many such examples
       | of 'lazy' and thus bad design.
        
       | mklyachman wrote:
       | Wow, what an excellent blog. Highly suggest trying out creator's
       | tool (stardrift.ai) too!
        
         | falloutx wrote:
         | Spam bot?
        
       | simonw wrote:
       | I'm not entirely convinced by the anecdote here where Claude
       | wrote "bad" React code:
       | 
       | > But in context, this was obviously insane. I knew that key and
       | id came from the same upstream source. So the correct solution
       | was to have the upstream source also pass id to the code that had
       | key, to let it do a fast lookup.
       | 
       | I've seen Claude make mistakes like that too, but then the moment
       | you say "you can modify the calling code as well" or even ask
       | "any way we could do this better?" it suggests the optimal
       | solution.
       | 
       | My guess is that Claude is trained to bias towards making minimal
       | edits to solve problems. This is a desirable property, because
       | six months ago a common complaint about LLMs is that you'd ask
       | for a small change and they would rewrite dozens of additional
       | lines of code.
       | 
       | I expect that adding a CLAUDE.md rule saying "always look for
       | more efficient implementations that might involve larger changes
       | and propose those to the user for their confirmation if
       | appropriate" might solve the author's complaint here.
        
         | bblcla wrote:
         | (Author here)
         | 
         | > I'm not entirely convinced by the anecdote here where Claude
         | wrote "bad" React code
         | 
         | Yeah, that's fair - a friend of mine also called this out on
         | Twitter
         | (https://x.com/konstiwohlwend/status/2010799158261936281) and I
         | went into more technical detail about the specific problem
         | there.
         | 
         | > I've seen Claude make mistakes like that too, but then the
         | moment you say "you can modify the calling code as well" or
         | even ask "any way we could do this better?" it suggests the
         | optimal solution.
         | 
         | I agree, but I think I'm less optimistic than you that Claude
         | will be able to catch its own mistakes in the future. On the
         | other hand, I can definitely see how a ~more intelligent model
         | might be able to catch mistakes on a larger and larger scale.
         | 
         | > I expect that adding a CLAUDE.md rule saying "always look for
         | more efficient implementations that might involve larger
         | changes and propose those to the user for their confirmation if
         | appropriate" might solve the author's complaint here.
         | 
         | I'm not sure about this! There are a few things Claude does
         | that seem unfixable even by updating CLAUDE.md.
         | 
         | Some other footguns I keep seeing in Python and constantly have
         | to fix despite CLAUDE.md instructions are:
         | 
         | - writing lots of nested if clauses instead of writing simple
         | functions by returning early
         | 
         | - putting imports in functions instead of at the top-level
         | 
         | - swallowing exceptions instead of raising (constantly a huge
         | problem)
         | 
         | These are small, but I think it's informative of what the
         | models can do that even Opus 4.5 still fails at these simple
         | tasks.
        
           | doug_durham wrote:
           | That's where you come in as an experienced developer. You
           | point out the issues and iterate. That's the normal flow of
           | working with these tools.
        
             | bblcla wrote:
             | I agree! Like I said at the end of the tool, I think Claude
             | is a great tool. In this piece, I'm arguing against the
             | 'AGI' believers who think it's going to replace all
             | developers.
        
           | ako wrote:
           | > I agree, but I think I'm less optimistic than you that
           | Claude will be able to catch its own mistakes in the future.
           | On the other hand, I can definitely see how a ~more
           | intelligent model might be able to catch mistakes on a larger
           | and larger scale.
           | 
           | Claude already does this. Yesterday i asked it why some
           | functionality was slow, it did some research, and then came
           | back with all the right performance numbers, how often
           | certain code was called, and opportunities to cache results
           | to speed up execution. It refactored the code, ran
           | performance tests, and reported the performance improvements.
        
             | ekidd wrote:
             | I have been reading through this thread, and my first
             | reaction to many of the comments was "Skill issue."
             | 
             | Yes, it can build things that have never existed before.
             | Yes, it can review its own code. Yes, it can do X, Y and Z.
             | 
             | Does it do all these things spontaneously with no
             | structure? No, it doesn't. Are there tricks to getting it
             | do some of these things? Yup. If you want code review,
             | start by writing a code review "skill". Have that skill ask
             | Opus to fork off several subagents to review different
             | aspects, and then synthesize the reports, with issues
             | broken down by Critical, Major and Minor. Have the skill
             | describe all the things _you_ want from a review.
             | 
             | There are, as the OP pointed out, a lot of reasons why you
             | can't run it with no human at all. But with an experienced
             | human nudging it? It can do a lot.
        
               | ako wrote:
               | It's basically not very different from working with an
               | average development team as a product owner/manager: you
               | need to feed it specific requirements or it will
               | hallucinate some requirements, bugs are expected, even
               | with unit test and testers on the team. And yes, as a
               | product owner you also make mistakes, never have all the
               | requirements up front, but the nice thing working with a
               | GenAI coder is that you can iterate over these
               | requirement gaps, hallucinated requirements and bugs in
               | minutes, not in days.
        
           | chapel wrote:
           | Those Python issues are things I had to deal with earlier
           | last year with Claude Sonnet 3.7, 4.0, and to a lesser extent
           | Opus 4.0 when it was available in Claude Code.
           | 
           | In the Python projects I've been using Opus 4.5 with, it
           | hasn't been showing those issues as often, but then again the
           | projects are throwaway and I cared more about the output than
           | the code itself.
           | 
           | The nice thing about these agentic tools is that if you setup
           | feedback loops for them, they tend to fix issues that are
           | brought up. So much of what you bring up can be caught by
           | linting.
           | 
           | The biggest unlock for me with these tools is not letting the
           | context get bloated, not using compaction, and focusing on
           | small chunks of work and clearing the context before working
           | on something else.
        
             | bblcla wrote:
             | Arguably linting is a kind of abstraction block!
        
           | pluralmonad wrote:
           | I wonder if this is specific to Python. I've had no trouble
           | like that with Claude generating Elixir. Claude sticks to the
           | existing styles and paradigms quite well. Can see in the
           | thinking traces that Claude takes this into consideration.
        
         | joshribakoff wrote:
         | I expect that adding instructions that attempt to undo training
         | produces worse results than not including the overbroad
         | generalization in the training in the first place. I think the
         | author isn't making a complaint they're documenting a tradeoff.
        
         | AIorNot wrote:
         | Well yes but the wider point is that it takes new Human skills
         | to manage them - like a pair of horses so to speak under your
         | bridle
         | 
         | When it comes down to it these AI tools are like going to power
         | tools or machines from the artisanal era
         | 
         | - like going from surgical knife to a machine gun- so they
         | operate at a faster pace without comprehending like humans -
         | and without allowing humans time to comprehend all side effects
         | and massive assumptions they make on every run in their context
         | window
         | 
         | humans have to adapt to managing them correctly and at the
         | right scale to be effective and that becomes something you
         | learn
        
         | Kuinox wrote:
         | > My guess is that Claude is trained to bias towards making
         | minimal edits to solve problems.
         | 
         | I don't have the same feeling. I find that claude tends to
         | produce wayyyyy too much code to solve a problem, compared to
         | other LLMs.
        
         | threethirtytwo wrote:
         | Definitely, The training parameters encourage this. The AI is
         | actually deliberately also trying to trick you and we know for
         | that for a fact.
         | 
         | Problems with solutions too complicated to explain or to output
         | in one sitting are out of the question. The AI will still bias
         | towards one shot solutions if given one of these problems
         | because all the training is biased towards a short solution.
         | 
         | It's not really practical to give it training data with multi
         | step ultra complicated solutions. Think about it. The thousands
         | of questions given to it for reinforcement.... the trainer is
         | going to be trying to knock those out as efficiently as
         | possible so they have to be readable problems with shorter
         | readable solutions. So we know AI biases towards shorter
         | readable solutions.
         | 
         | Second, Any solution that tricks the reader will pass training.
         | There is for sure a subset of questions/solution pairs that
         | meet this criteria by definition because WE as trainers simply
         | are unaware we are being tricked. So this data leaks into the
         | training and as a result AI will bias towards deception as
         | well.
         | 
         | So all in all it is trained to trick you and give you the best
         | solution that can fit into a context that is readable in one
         | sitting.
         | 
         | In theory we can get it to do what we want only if we had
         | perfect reinforcement data. The reliability we're looking for
         | seems to be just right over this hump.
        
       | doug_durham wrote:
       | Did the author ask it to make new abstractions? In my experience
       | when I produces output that I don't like I ask it to refactor it.
       | These models have and understanding of all modern design
       | patterns. Just ask it to adopt one.
        
         | bblcla wrote:
         | (Author here)
         | 
         | I have! I agree it's very good at applying abstractions, if you
         | know _exactly_ what you want. What I notice is that Claude has
         | almost no ability to surface those abstractions on its own.
         | 
         | When I started having it write React, Claude produced
         | incredibly buggy spaghetti code. I had to spend 3 weeks
         | learning the fundamentals of React (how to use hooks,
         | providers, stores, etc.) before I knew how to prompt it to
         | write better code. Now that I've done that, it's great. But
         | it's meaningful that someone who doesn't know how to write
         | well-abstracted React code can't get Claude to produce it on
         | their own.
        
           | michalsustr wrote:
           | Same experience here! As an analogy, consider the model knows
           | both about arabic or roman number representations. But in
           | alternate universe, it has been trained so much on roman
           | numbers ("Bad Code") that it won't give you the arabic ones
           | ("Good Code") unless you prompt it directly, even when they
           | are clearly superior.
           | 
           | I also believe that overall repository code quality is
           | important for AI agents - the more "beautiful" it is, the
           | more the agent can mimic the "beauty".
        
       | Scrapemist wrote:
       | Eventually you can show Claude how you solve problems, and
       | explain the thought process behind it. It can apply these
       | learnings but it will encounter new challenges in doing so. It
       | would be nice if Claude could instigate a conversation to go over
       | the issues in depth. Now it wants quick confirmation to plough
       | ahead.
        
         | fennecbutt wrote:
         | Well I feel like this is because a better system would distill
         | such learning into tokens not associated with a human language
         | and that that could represent logic better than using English
         | etc for it.
         | 
         | I don't have the GPUs or time to experiment though :(
        
           | Scrapemist wrote:
           | Yes, but I would appreciate it if it uses English to explain
           | its logic to me.
        
       | joshcsimmons wrote:
       | IDK I've been using opus 4.5 to create a UI library and it's been
       | doing pretty well: https://simsies.xyz/ (still early days)
       | 
       | Granted it was building ontop of tailwind (shifting over to radix
       | after the layoff news). Begs the question? What is a lego?
        
         | threethirtytwo wrote:
         | I don't know how someone can look at what you build and
         | conclude LLMs are still google search. It boggles the mind how
         | much hatred people have for AI to the point of self deception.
         | The evidence is placed right in front of you and on your lap
         | with that link and people still deny it.
        
           | mattmanser wrote:
           | How do you come to that conclusion?
           | 
           | There are absolutely tons of code pens of that style. And
           | jsfiddles, zen gardens, etc.
           | 
           | I think the true mind boggle is you don't seem to realize
           | just how much content the AI conpanies have stolen.
        
             | threethirtytwo wrote:
             | >I think the true mind boggle is you don't seem to realize
             | just how much content the AI conpanies have stolen.
             | 
             | What makes you think I don't realize it? Looks like your
             | comment was generated by an LLM because that was an
             | hallucination that is Not true at all.
             | 
             | AI companies have stolen a lot of content for training. I
             | AGREE with this. So have you. That content lives rent free
             | in your head as your memory. It's the same concept.
             | 
             | Legally speaking though, AI companies are a bit more in the
             | red because the law, from a practical standpoint, doesn't
             | exactly make illegal anything stored in your brain... but
             | from a technical standpoint information on your brain, a
             | hard drive or a billboard is still information
             | instantiated/copied in the physical world.
             | 
             | The text you write and output is simply a reconfiguration
             | of that information in your head. Look at what you're
             | typing. The English language. It's not copywrited, but
             | every single word your typing was not invented by you, the
             | grammar rules and conventions were ripped off existing
             | standards.
        
         | dehugger wrote:
         | your github repo was highly entertaining. thanks for make my
         | day a bit brighter:)
        
       | lordnacho wrote:
       | By and large, I agree with the article. Claude is great and fast
       | at doing low level dev work. Getting the syntax right in some
       | complicated mechanism, executing an edit-execute-readlog loop,
       | making multi file edits.
       | 
       | This is exactly why I love it. It's smart enough to do my donkey
       | work.
       | 
       | I've revisited the idea that typing speed doesn't matter for
       | programmers. I think it's still an odd thing to judge a candidate
       | on, but appreciate it in another way now. Being able to type
       | quickly and accurately reduces frustration, and people who
       | foresee less frustration are more likely to try the thing they
       | are thinking about.
       | 
       | With LLMs, I have been able to try so many things that I never
       | tried before. I feel that I'm learning faster because I'm not
       | tripping over silly little things.
        
         | imiric wrote:
         | > Being able to type quickly and accurately reduces
         | 
         | LLMs can generate code quickly. But there's no guarantee that
         | it's syntactically, let alone semantically, accurate.
         | 
         | > I feel that I'm learning faster because I'm not tripping over
         | silly little things.
         | 
         | I'm curious: what have you actually learned from using LLMs to
         | generate code for you? My experience is completely the
         | opposite. I learn nothing from running generated code, unless I
         | dig in and try to understand it. Which happens more often than
         | not, since I'm forced to review and fix it anyway. So in
         | practice, it rarely saves me time and energy.
         | 
         | I do use LLMs for learning and understanding code, i.e. as an
         | interactive documentation server, but this is not the use case
         | you're describing. And even then, I have to confirm the
         | information with the real API and usage documentation, since
         | it's often hallucinated, outdated, or plain wrong.
        
         | bossyTeacher wrote:
         | > I feel that I'm learning faster
         | 
         | Yes, you are feeling _that_. But is _that_ real? If I take all
         | LLMs from you righ tnow, is your current you still better than
         | your pre-LLM you? When I dream I feel that I can fly and as
         | long as I am dreaming, this feeling is true. But the subject of
         | this feeling never was.
        
           | frde_me wrote:
           | I feel like my calculator improves my math solutions. If you
           | take away my calculator, I'll probably be worse at math than
           | I was before. That doesn't mean I'm not better off with my
           | calculator however.
        
             | embedding-shape wrote:
             | That's a pretty interesting take on it, I hadn't considered
             | it like that before when I was considering if my skills
             | were atrophying or not from LLM usage with coding.
        
             | ep103 wrote:
             | Your calculator doesn't charge per use
        
               | frde_me wrote:
               | If it did, would it change its usefulness in terms of the
               | value it outputs? (through agreed, if I had to pay money
               | it would increase the cost, and so the tradeoff)
        
           | sothatsit wrote:
           | If you use coding agents as a black box, then yes you might
           | learn less. But if you use them to experiment more, your
           | intuition will get more contact with reality, and that will
           | help you learn more.
           | 
           | For example, my brother recently was deciding how to
           | structure some auth code. He told me he used coding agents to
           | just try several ideas and then he could pick a winner and
           | nail down that one. It's hard to think of a better way to
           | learn the consequences of different design decisions.
           | 
           | Another example is that I've been using coding agents to
           | write CUDA experiments to try to find ways to optimise our
           | codegen. I need an understanding of GPU performance to do
           | this well. Coding agents have let me run 5x the number of
           | experiments I would be able to code, run, and analyse on my
           | own. This helps me test my intuition, see where my
           | understanding is wrong, and correct it.
           | 
           | In this whole process I will likely memorise fewer CUDA APIs
           | and commands, that's true. But I'm happy with that tradeoff
           | if it means I can learn more about bank conflicts, tradeoffs
           | between L1 cache hit rates and shared memory, how to
           | effectively use the TMA, warp specialisation, block swizzling
           | to maximise L2 cache hit rates, how to reduce register usage
           | without local spilling, how to profile kernels and read the
           | PTX/SASS code, etc. I've never been able to put so much
           | effort into actually testing things as I am learning them.
        
         | onemoresoop wrote:
         | It's a bit like the shift from film to digital in one very
         | specific sense: the marginal cost of trying again virtually
         | collapsed. When every take cost money and setup time, creators
         | pre-optimized in their head and often never explored half their
         | ideas. When takes became cheap, creators externalized thought
         | as they could try, look, adjust, and discover things they
         | wouldn't otherwise. Creators could wander more. They could
         | afford to be wrong because of not constantly paying a tax for
         | being clumsy or incomplete, they became more willing to follow
         | a hunch and that's valuable space to explore.
         | 
         | Digital didn't magically improve art, but it let many more
         | creatives enter the loop of idea, attempt and feedback. LLMs
         | feel similar: they don't give you better ideas by themselves,
         | but they remove the friction that used to stop you from even
         | finding out whether an idea was viable. That changes how often
         | you learn, and how far you're willing to push a thought before
         | abandoning it. I've done so many little projects myself that I
         | would have never had time for and feel that I learned something
         | from it, of course not as much if I had all the pre LLM
         | friction, but it should still count for something as I would
         | never have attempted them without this assistance.
         | 
         | Edit: However, the danger isn't that we'll have too many ideas,
         | it's that we'll confuse movement with progress.
         | 
         | When friction is high, we're forced to pre-compress thought, to
         | rehearse internally, to notice contradictions before
         | externalizing them. That marination phase (when doing something
         | slowly) does real work: it builds mental models, sharpens the
         | taste and teaches us what not to bother to try. Some of that
         | vanishes when the loop becomes cheap enough that we can just
         | spray possibilities into the world and see what sticks.
         | 
         | A low-friction loop biases us toward breadth over depth. We can
         | skim the surface of many directions without ever sitting long
         | enough in one to feel its resistance. The skill of holding a
         | half formed idea in our head, letting it collide with other
         | thoughts, noticing where it feels weak, atrophies if every
         | vague notion immediately becomes a prompt.
         | 
         | There's also a cultural effect. When everyone can produce
         | endlessly, the environment fills with half-baked or shallow
         | artifacts. Discovery becomes harder as signal to noise drops.
         | 
         | And on a personal level, it can hollow out satisfaction.
         | Friction used to give weight to output. Finishing something
         | meant you had wrestled with it. If every idea can be
         | instantiated in seconds, each one feels disposable. You can end
         | up in a state of perpetual prototyping, never committing long
         | enough for anything to become yours.
         | 
         | So the slippery slope is not laziness, it is shallowness, not
         | that people won't think, but people won't sit with thoughts.
         | The challenge here is to preserve deliberate slowness inside a
         | world that no longer requires it: to use the cheap loop for
         | exploration, while still cultivating the ability to pause,
         | compress, and choose what deserves to exist at all.
        
       | esafak wrote:
       | > Claude doesn't have a soul. It doesn't want anything.
       | 
       | Ha! I don't know what that has to do with anything, but this is
       | exactly what I thought while watching _Pluribus_.
        
       | alphazard wrote:
       | This sounds suspiciously like the average developer, which is
       | what the transformer models have been trained to emulate.
       | 
       | Designing good APIs is hard, being good at it is rare. That's why
       | most APIs suck, and all of us have a negative prior about calling
       | out to an API or adding a dependency on a new one. It takes a
       | strong theory of mind, a resistance to the curse of knowledge,
       | and experience working on both sides of the boundary, to make a
       | good API. It's no surprise that Claude isn't good at it, most
       | humans aren't either.
        
       | iamacyborg wrote:
       | Here's an example of a plan I'm working on in CC, it's very
       | thorough, albeit required a lot of handholding and fact checking
       | on a number of points as it's first few passes didn't properly
       | anonymise data.
       | 
       | https://docs.google.com/document/u/0/d/1zo_VkQGQSuBHCP45DfO7...
        
       | disconcision wrote:
       | I've yet to be convinced by any article, including this one, that
       | attempts to draw boxes around what coding agents are and aren't
       | good at in a way that is robust on a 6 to 12 month horizon.
       | 
       | I agree that the examples listed here are relatable, and I've
       | seen similar in my uses of various coding harnesses, including,
       | to some degree, ones driven by opus 4.5. But my general
       | experience with using LLMs for development over the last few
       | years has been that:
       | 
       | 1. Initially models could at best assemble a simple procedural or
       | compositional sequences of commands or functions to accomplish a
       | basic goal, perhaps meeting tests or type checking, but with no
       | overall coherence,
       | 
       | 2. To being able to structure small functions reasonably,
       | 
       | 3. To being able to structure large functions reasonably,
       | 
       | 4. To being able to structure medium-sized files reasonably,
       | 
       | 5. To being able to structure large files, and small multi-file
       | subsystems, somewhat reasonably.
       | 
       | So the idea that they are now falling down on the multi-module or
       | multi-file or multi-microservice level is both not particularly
       | surprising to me and also both not particularly indicative of
       | future performance. There is a hierarchy of scales at which
       | abstraction can be applied, and it seems plausible to me that the
       | march of capability improvement is a continuous push upwards in
       | the scale at which agents can reasonably abstract code.
       | 
       | Alternatively, there could be that there is a legitimate
       | discontinuity here, at which anything resembling current
       | approaches will max out, but I don't see strong evidence for it
       | here.
        
         | groby_b wrote:
         | LLMs are bad at creating abstraction boundaries since
         | inception. People have been calling it out since inception.
         | (Heck, even I got a twitter post somewhere >12 months old
         | calling that out, and I'm not exactly a leading light of the
         | effort)
         | 
         | It is in no way size-related. The technology cannot create new
         | concepts/abstractions, and so fails at abstraction. Reliably.
        
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