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Posted by Alifatisk 8 hours ago

DeepSeek reasonix, DeepSeek native coding agent with high caching and low cost(esengine.github.io)
Related ongoing thread:

DeepSeek makes the V4 Pro price discount permanent - https://news.ycombinator.com/item?id=48237663 - May 2026 (384 comments)

294 points | 150 commentspage 3
m101 3 hours ago|
For those of you that use deepseek v4 occasionally, what harness do you use it with? I’m only familiar with claude code and codex.

Any comments on what you can or cannot rely on it for relative to cc and codex would be appreciated too!

eikenberry 2 hours ago||
Maybe check out Goose. It is the standard agent harness being developed by The Linux Foundation under the AAIF. Under active development and the implementation seems to have a good leg up on the other popular agents.

https://github.com/aaif-goose/goose

https://goose-docs.ai/

droidjj 3 hours ago||
Check out pi.dev. OpenCode is a nice batteries-included Claude Code replacement, but I’m in love with the extensibility of Pi.
chuckadams 3 hours ago||
Any Pi extensions you'd specifically recommend? I'm just starting out with Pi, but I've had mixed results with extensions. I'm using Pi with gemma4 26b locally, so anything that's friendly to small local models would be appreciated. I think the only extension I'm using right now is pi-total-recall.
gck1 2 hours ago||
I think pi wants you to write your own extensions, adapted to your meeds.

I haven't had a need for any extensions though. Maybe subagents, but I solved that with tmux. For all the rest, I just use "skills".

mmarcant 2 hours ago||
"byte-stable prefix cache" -- give us your codebase in a way that's even EASIER for us to train on.
imagetic 4 hours ago||
https://shittycodingagent.ai
peheje 1 hour ago||
having issues with truncated output from deepseek v4 pro through openrouter via pi-harness on ptyxis-terminal using ubuntu

trying reasonix with direct api..

peheje 1 hour ago||
first impression: the tui flickers a lot, unpleasent
mi_lk 3 hours ago|||
Not sure about the story but it would be funny if pi folks actually own this domain.
chuckadams 3 hours ago||
They do. That's Pi's old name.
chabes 4 hours ago||
Aka pi.dev
singingtoday 3 hours ago||
That site does not render correctly on my android. Lots of text on the right breaking the reactive layout.
adi_kurian 1 hour ago||
There is an uncanny valley effect to websites where FE is created in full via an AI.

These sites have the immediate scent of 'high design', with errors that no 'high designer' would dare make.

The italics give me nausea. Text promoted with orange fill is seemingly random. There is no thought behind the combination of art and copy. Random smattering of Title Case and Sentence case and lower case. A lack of commitment to a full stop Widowed H1s. H1s with random spaces .

At the same time, if I hammer CMD - to 25%, it looks fancy. Perhaps nobody gives a fuck.

That said, I'm excited to try this tool!

yalogin 4 hours ago||
Can someone give me a eli5 version of what this is? It really sounds useful to Claude subscribers.

Is this improving the cache hit and hence overall efficiency of coding workflows?

Does it also let me host a local llm (deepseek)? What are model min requirements for this?

timcobb 4 hours ago|
You can also ask Claude and get an immediate answer, the power is yours
Salgat 2 hours ago||
Certainly you realize that these comments exist for more than a single person right? You expect potentially hundreds of viewers to each burn through AI tokens instead of just getting a direct and relevant answer here? This has the same vibe as the old forum posts where the only response was a "google it".
fouric 4 hours ago||
I don't think it's particularly effective to create a new coding agent when there's existing open-source agents (especially extremely extensible ones like Pi) that already optimize for cache hits, have far larger communities, and work for providers other than Deepseek.

I specifically use multiple different models and providers, so this wouldn't be useful for me.

And it contributes to the problem of each person vibe-coding their own, incompatible, half-baked tool in a space, instead of contributing to a small set of tools and expanding them.

It'd be better to just extend an existing tool.

ricardobeat 4 hours ago||
> The loop is append-only, engineered around DeepSeek's byte-stable prefix cache — long sessions hold 90%+ cache hit and input-token cost collapses to ~1/5. Terminal-first, leave it running.

AI marketing slop. This is how all models and coding harnesses work, isn't it?

The author claims (in another AI-written post):

> LangChain — along with every generic agent framework I checked — rebuilds the prompt every turn. Timestamps get injected. History gets reordered. Tool schemas re-serialize with different whitespace.

I haven't touched LangChain in a long, long time, but don't think any of the current harnesses, Claude Code, Pi, Crush, OpenCode etc do that except if you change configuration? Keeping the context stable for caching is a very basic principle and not a wild innovation.

This posing as DeepSeek-specific is also a mystery.

hmokiguess 4 hours ago||
Click on the download page, it's hilarious. It has a lot of information about the "smart probe" on the download and it's a realtime probe you can rerun.

That's the pinnacle of AI slop over engineered garbage in my opinion. All of that information is noise.

pkulak 4 hours ago|
Doesn't Pi Agent do exactly this? Assuming "append only" means they do some kind of compaction as well.
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