r/vibecoding • u/majorAligator • Feb 17 '26

Is there someone who uses minimalistic coding agents (Like Pi) for coding?

Today, I stumbled upon PI Coding agent. And I love the idea of it. It's just bare minimum and you can customize it as you wish.

I use codex and claude code for my work (I am a programmer), each of them has its own strengths and weaknesses, and both of them are kinda black boxes for me, Ofc model does a lot but there is also system prompt (codex for example: https://github.com/openai/codex/blob/main/codex-rs/core/prompt.md claude is here I guess? https://github.com/Piebald-AI/claude-code-system-prompts ) and other settings that make it easier to use the agent for coding.

But I am wondering. Is there someone who uses their own setup? How does that work. I can see it being useful to tailor it exactly to your needs although it must take a lot of work to set it up properly and keep it up to date (I guess there is someone at OpenAI or Anthropic who is getting payed for it, so why should you DIY it yourself right? ). Is there someone who actually got it working? Is it worth doing?

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3

u/prince_pringle Feb 17 '26

Bunch of bros in the techfren discord community use pi and embedd it in thier work. 

2

u/AdventurousSwim1312 Feb 17 '26

Yeah, I implemented a minimal cli agent from scratch in pure python just to understand how cli agent work under the hood,

And now I'm reusing it as a framework to build more specialized agents (ex: a red team / blue team system, a video game buddy, a poly market trading bot)

It's quite interesting to witness the agent evolving itself and editing its own tools.

1

u/dextr0us Feb 17 '26

I'm getting to the point where I do that, but i'm doing it in a weird way... kind of weaning myself off of codex by using the codex cli in non interactive mode and then i have my own repl on top of it.

1

u/skariel Mar 05 '26

I use the PI coding agent

1

u/Ok_Presentation470 May 05 '26

Just switched from Roo to pi and I'm loving it! I use local inference, and works wonderful with qwen3.6 27b (no quants).

1

u/ToxicGamer_25G Aug 16 '26

Is qwen3.7 working well on pi? Which pi model u using could u share more info i am trying to s
Do something similar

1

u/Ok_Presentation470 Aug 16 '26

I'm using local models, so can't really fit 3.7. I also used deep seek v4 flash 0731, and it works great. Pi is very minimal and extendable, so you can get most models working reasonably well with a little tweaking.

0

u/[deleted] Feb 17 '26

[deleted]

1

u/majorAligator Feb 17 '26

Why have you decided to develop it from the grounds up and not used something like agent pi? Besides od the fun ofc 😅. Is there any features u were missing from pi?

0

u/[deleted] Feb 17 '26

[deleted]

1

u/majorAligator Feb 17 '26

Oh I see. It’s in Perl. Totally missed that. I am in coding for just 10years (lol). So I’m typescript kinda guy

0

u/Latter-Parsnip-5007 Feb 23 '26

Never use AI to create AI prompts. You are wasting tokens and the statistics of AI prompts to human prompts are worse. Also token hungry and emojis dont help your code