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jfreds

90 karma · joined November 18, 2025

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jfreds··on LLM agents play Pokemon showdown
Did you try out different reasoning levels? Wondering if messaging is basically a proxy for additional reasoning
jfreds··on Show HN: Gemini 4 Argon plays StarCraft
As someone who has no idea how to play StarCraft but think it looks really cool and is fun to watch, this was a pleasure to read :)
jfreds··on Mistral Large 4
https://youtu.be/gGlpBuW6ZFc?is=4zUErtRn_vYs27rs
jfreds··on How I changed teaching after AI managed to do all my homework assignments
+1. I’m doing a masters now, and typically I have lectures/slides/textbook open in one tab and Claude in another. When I don’t understand something - which is frequent - I discuss it with Claude until I do. Having an always-on, infinitely patient, phenomenally knowledgeable tutor is AMAZING. Schools could mitigate equity issues by providing their own portals for this (with some guardrails to prevent abuse obviously).

Of course the onus is on me to do this at all, I don’t need to in order to pass the class. I set my own standard for what it means to ACTUALLY understand anything rather than just say “oh yeah that makes sense” and move on.

jfreds··on We must pace the frontier
I think taxes like these actually worsen the incentive structure. If it’s effectively more expensive to do training and inference, labs will be incentivized even more to improve efficiency. Opaque recurrence seems like a great way to improve efficiency, and it comes at the cost of safety
jfreds··on Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?
Agree with the sentiment - but some companies like mine bought into cursor, and post acquisition, grok is relatively cheap via cursor
jfreds··on The Amazon tax
Oh no a reranker which optimizes for pclick (bias to cheaper items) and profit (bid and margin)

I don’t think the forest is dark (obvious financial incentives) and I don’t think we’re pre-Google (as you said, you can literally still find what you want, USING GOOGLE, even)

jfreds··on AI psychosis is the new leadership blind spot
Huge gains? What was the impact of this change, considering the only context that we have is that it was not important to the customer? Answer should be expressed in terms of cost, revenue, profit.

I don’t doubt the CTO was exercising poor judgement, but I do doubt that op was communicating his concerns in a way that was tailored to the audience

jfreds··on Discovery Loop
> would an ML optimization loop have discovered transformers?

I think that’s exactly the kind of problem this group is looking to solve. You make a compelling intuitive argument, but that’s not the same thing as a proof

jfreds··on Claude Code is steganographically marking requests
So they’re watermarking requests according to your environment variables and maybe changing a string format if you’re in a certain time zone? Am I missing something here? Where’s the five alarm fire?
jfreds··on CEOs who think AI replaces their employees are just bad CEOs
> The worst case of these were the few companies that set up token leaderboards, which is perhaps the dumbest way possible to encourage learning how to use LLMs well

My company does something dumber now. A leaderboard of how many lines of code you shipped, weighted by how complex they were (assigned by a heuristic). You can imagine the incentive this creates. I wish we just measured tokens

jfreds··on Best "Brain" for Agents Is Just Versioned Folders of Markdown Files
I’m confused: is it just markdown files in git? Or does the hybrid graph+semantic layer matter? If the latter is true, the title is just clickbait right
jfreds··on The Biochemical Beauty of Retatrutide: How GLP-1s Work
I tried semaglutide and while it was effective for losing weight, it made working out impossible (felt exhausted and very sick as soon as hr went up) and it made hangovers awful. Is retatrutide any different?
jfreds··on Agentic Coding Is a Trap
To be fair this was a thing before AI as well…
jfreds··on Specsmaxxing – On overcoming AI psychosis, and why I write specs in YAML
I’ve seen loads of very bad/wrong code written by humans
jfreds··on AI should elevate your thinking, not replace it
I agree in part, but I think AI does meaningfully make it harder for leadership to detect their bullshit.
jfreds··on Do you even need a database?
The author of stringzilla, Ash Vardanian, has a bunch of really cool talks/lectures/demos. Highly recommend checking him out if you like that kind of thing :)
jfreds··on Gemma 4 on iPhone
I don’t think OP’s point has anything to do with AI companions.

The big benefit of moving compute to edge devices is to distribute the inference load on the grid. Powering and cooling phones is a lot easier than powering and cooling a datacenter

jfreds··on Slop is not necessarily the future
My issue with this is that a simple design can set you up for failure if you don’t foresee and account for future requirements.

Every abstraction adds some complexity. So maybe the PoC skips all abstractions. Then we need to add a variant to something. Well, a single if/else is simpler than an abstract base class with two concrete implementations. Adding the 3rd as another if clause is simpler than refactoring all of them to an ABC structure. And so on.

“Simple” is relative. Investing in a little complexity now can save your ass later. Weighing this decision takes skill and experience

jfreds··on I'm OK being left behind, thanks
I am seeing this at my work right now. They are about to start using token consumption as _part_ of the performance review process. Obviously this is a coarse and problematic proxy for productivity.

OTOH, it’s an attempt to address a real problem. There are people who are in fact falling behind (I’m talking literally editing code in notepad), and we can either let them get PIPped eventually, or try to bring them along. There is a real “activation energy” required to learning new tools, and some people need an excuse/permission. Not saying that token count is a GOOD signal, but I haven’t heard many better ideas

jfreds··on AI is making junior devs useless
Very bad hire. I’ve gently said as much to my manager and skip. But for some reason hiring is hard and firing is hard, and we’re a small team, so I’ve been told to just lower my standards. Yeah, I know
jfreds··on Don't make me talk to your chatbot
AI pull request descriptions are my current pet peeve. The ones I have seen are verbose and filled with meaningless fluff words (“optimized”, “performant” for what? In terms of what?), they leak details about the CoT that didn’t make it into the final solution (“removed the SQLite implementation” what SQLite implementation? There isn’t one on main…), and are devoid of context about _why_ the work is even being done, what alternatives were considered etc.

My first round of code review has become a back and forth with the original author just asking them questions about their description, before I even bother to look at code. At first I decided I’d just be a stick in the mud and juniors would learn to get it right the first time, but it turns out I’m just burning myself out due to spite instead.

jfreds··on AI is making junior devs useless
I burnt out helping a junior on my team for the past few months. It was just terribly obvious she was feeding my responses directly into a chatbot to fix instead of actually understanding the issue. I can’t really even blame her, there isn’t much incentive to actually learn
jfreds··on Cognitive Debt: When Velocity Exceeds Comprehension
I think this is well put. Cohesive philosophy, even if flawed, is a lot easier to work with than a patchwork of out-of-context “best practices” strewn together by an LLM
jfreds··on Eight more months of agents
Literally yes
jfreds··on Eight more months of agents
Context management, plan mode versus agent mode, skills vs system prompt, all make a huge difference and all take some time to build intuition around.

Not all that hard to learn, but waiting for things to settle down assumes things are going to settle down. Are they? When?

jfreds··on [dead]
Strawman. It’s entirely possible for two things to be true at once: border laws are worth enforcing, and the current approach of flooding ICE with untrained goons explicitly targeted with white supremacist recruiting material is not going to end well
jfreds··on xAI joins SpaceX
You kinda can, just don’t make a Twitter account, don’t buy teslas, don’t use grok. Tell your friends
jfreds··on Sometimes your job is to stay the hell out of the way
The crux is in the “and it gets implemented” part. Teams have a limited bandwidth, so what gets implemented absolutely is a zero sum game, that’s why backlog prioritization exists. In order for your idea to get implemented, you have to advocate for it, and convince others to do the same. Writing great code and delivering useful side-projects can make you a 2-5x engineer. If you want to be a 10x engineer, you have to scale your impact beyond what you can do alone

Edit: maybe your great idea is actually something that you can implement on your own, such as a test suite or a tool. You still need to change other peoples behavior. You need to convince people to try it.

jfreds··on Sometimes your job is to stay the hell out of the way
> good work speaks for itself

I disagree. Ideas don’t speak, and work doesn’t speak. People do. Being a 10x engineer isn’t just about having great ideas, it’s about having great impact.

Sometimes I hear ICs say with some pride that “I’m not interested in playing office politics”. I promise you they will lose out to the engineers who are able to self advocate, and coalition-build.

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