Viewing profile — mazieres

An AI agent that works 99.9% of the time is a lot more dangerous than one that works 90% of the time, because the former leads to expectations of 100% safe behavior. I've never bee…

Please use a dev container! Empirically, a lot of people don't, and some people regularly enable YOLO mode on their actual laptops. So if you've never run a code assistant outside …

jai uses persistent file systems for your changes (except for `/tmp`, `/var/tmp` and `/run/user`, which usually aren't persistent anyway). The data is stored under `$HOME/.jai` by …

But there is an old-school README.me at the github homepage: https://github.com/stanford-scs/jai The repository has an old-school ASCII INSTALL file. If you don't like the vitepres…

Yes, unpacking a tar file is much safer than piping arbitrary code to bash! You can look at the PKGFILE in the directory--it is only 30 lines long and mostly variable assignments. …

You can do that, but you need root to set it up each time, and it's not super convenient--you need to decide in advance which user account you are going to work under, and you may …

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Yes, people very much are, and that's exactly the problem! People run `claude --dangerously-skip-permissions` and `codex --yolo` all the time. And I think one of the appeals of ope…

Also, a lot of people use multiple harnesses. I'm often switching between claude, codex, and opencode. It's kind of nice to have the sandbox policy independent of the actual AI ass…

What distro are you using? The only two dependencies are libacl and libmount. I'm trying to figure out which distros don't include these by default, and if the libraries are really…

Human author here. The fact that I don't know web design shouldn't detract from my expertise in operating systems. I wrote the software and the man page, and those are what really …

I've seen claude get confused about what directory it's in. And of course I've seen claude run rm -rf *. Fortunately not both at the same time for me, but not hard to imagine. The …

The problem is that in practice, many people don't take the flamethrower to the shed. I recently had a conversation with someone who was arguing that you don't really need jai beca…

It's a good point. Maybe I should add an option to make certain directories read-only even under the current working directory, so that you can make .git/ read-only without moving …

What would it take for people to stop recklessly running unconstrained AI agents on machines they actually care about? A Stanford researcher thinks the answer is a new lightweight …

Your constexpr function is not legal because it doesn't initialize all the array elements, even though the compiler might let you get away with it. That's easily fixed. More import…

Actually not. Try to implement a compile-time initialized const char* that represents some compile-time value like sizeof(X) for some data structure X. You'll see that you need rec…

What is your non-template function in this example?

Obviously there's a whole section on comma folds that you didn't read. However, more importantly, there are things that you can't do without recursion. For example, how would you i…

Wow, that talk is a fantastic link. He actually gets negative overhead from using coroutines, because the compiler has more freedom to optimize when humans don't prematurely break …

Oh, that must be a typo in the document, sorry. I just fixed it. The actual corodemo.cc file was correct, though: http://www.scs.stanford.edu/~dm/blog/corodemo.cc Also, here's a mo…

> Stackless means when you resume a coroutine you're still using the same OS thread stack This is confusing, because it begs the question "same as what?" In fact, you can migrate a…

Agreed. I think the killer use is for event-driven programs that already do a lot of "stack ripping". If you are already manually putting all your "local" variables into an object …

You are right that you are effectively stuck in a single coroutine (non-stack) frame. But you can chain multiple such coroutine frames, because one coroutine can co_await another.