Show HN: Pu.sh – a full coding-agent harness in 400 lines of shell(pu.dev)
73 pointsby nahimn8 hours ago17 comments
  • ricardobeat8 hours ago
    Really like the looks of it, but minifying the code to achieve the “400 lines” marketing gimmick is a huge turn-off.

    It’s also a security nightmare, and ensures it remains 100% vibe coded. Would rather have a readable source with an honest line count.

    • StableAlkyne7 hours ago
      Agreed. It would be one thing if it was a regular bash project that got minified via a script or something, since at least you could tell what it's doing.

      This is just spaghetti. Maybe it's spaghetti that runs, but code of this quality does not engender confidence.

    • sudb8 hours ago
      I think it's fine that it's minified, code-golf style, but yes I agree that this would be much more convincing and useful with an unminified source.
      • cachius7 hours ago
        Isn’t unwrapping and commenting just one prompt away?
        • StableAlkyne7 hours ago
          Assuming the agent doesn't forget or misinterpret anything.

          It would be much better to just have a deterministic minification script.

        • malicka5 hours ago
          … no, you shouldn’t use AI for simple reformatting of code without the newlines. We have syntax parsers and reformatters for this. Use them, then put that into the LLM for commenting, if you really want to.
    • petcat8 hours ago
      I'm not even sure why it stopped at 500 line limit. If it's just a shell script then why not make it one line?
  • mjuarez6 hours ago
    Could you post the initial 6KB version? I'd love to have a version that I can actually read and understand. I don't care if it's 2K LOC.
    • TacticalCoder5 hours ago
      > Could you post the initial 6KB version? I'd love to have a version that I can actually read and understand. I don't care if it's 2K LOC.

      I don't think that even with APL you could get an average of three characters per line of code to get a 6 Kb file in 2 K LOC.

  • kkovacs7 hours ago
    I love this. This is the grown-up brother of my one-liner bash+python at

    https://github.com/kkovacs/kkrc/blob/ecff1f65d5ccfa24d5f6695...

    :)

  • petcat8 hours ago
    your 500 LOC requirement has made this thing completely and unnecessarily inscrutable and unreadable.

    Pass.

  • Amber-chen4 hours ago
    I like the small-surface-area approach. The question I’d use to evaluate this is how well the harness records/replays tool calls and failure modes, since that is where debugging agent behavior usually gets messy.
  • zackham5 hours ago
    if you are looking for a customizable agent harness that provides everything except a tui (cli, acp, embeddable python package) i built and use this for a handful of projects where i needed a vendor-agnostic replacement for claude agent sdk: https://github.com/zackham/aloop
  • tecoholic7 hours ago
    Kudos. I set on this exact journey a couple of days back and Pi is what I started reading for inspiration as well. I really can't stand the text boxes and the animations of the mainstream harnesses.
  • flog7 hours ago
    I'd love to learn how to build something like this, but unfortunately the code is unreadable.

    If author could write a heavily commented version that would be amazing.

  • 0gs6 hours ago
    why the LOC limit? just because?
  • Imustaskforhelp7 hours ago
    Interested in something like this if the code can be more readable, it would be interesting to see it in languages like lua etc. too in future.
  • hkt8 hours ago
    I love it. I think I'm going to have fun with this and possibly learn a bit, too. I'm pondering a container based dev environment at the moment and might throw it in with busybox and see how far I get :)
  • Oxlamarr38 minutes ago
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  • 7 hours ago
    undefined
  • kestiny5 hours ago
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  • kweiza7 hours ago
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  • qavey5 hours ago
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