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Show HN: Pu.sh – a full coding-agent harness in 400 lines of shell

89 points by nahimn

by ricardobeat

3 subcomments

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.

by mjuarez

2 subcomments

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.

by kkovacs

0 subcomment

I love this. This is the grown-up brother of my one-liner bash+python at
https://github.com/kkovacs/kkrc/blob/ecff1f65d5ccfa24d5f6695...
:)

by cachius

0 subcomment

Does it work in just-bash?
https://github.com/vercel-labs/just-bash/blob/main/packages/...

by petcat

1 subcomments

your 500 LOC requirement has made this thing completely and unnecessarily inscrutable and unreadable.
Pass.

by Imustaskforhelp

0 subcomment

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.

by Amber-chen

0 subcomment

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.

by migrevdolseg

0 subcomment

this inspired me to build something similar.
i like the idea but i wanted slightly different constraints:
- one file
- zero dependencies (other than node)
- <1k loc
- ascii only
- suckless configuration
- works with ollama models
- more readble sourcecode
- pretty markdown output
- toggle-able read-only mode
https://willhanlen.com/~~/outbox/26/5/ai.js/?code
took me only a few hours. amazing times we live in!

by hkt

0 subcomment

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 :)

by tecoholic

0 subcomment

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.

by flog

2 subcomments

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.

by zackham

0 subcomment

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

by 0gs

1 subcomments

why the LOC limit? just because?

by laxmena

0 subcomment

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by Amber-chen

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by nielsbosma

0 subcomment

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by ArielTM

0 subcomment

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by Oxlamarr

0 subcomment

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by kestiny

0 subcomment

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by kweiza

0 subcomment

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by suyavuz

0 subcomment

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by qavey

0 subcomment

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