Show HN: OzBrain, a shared brain for knowledge between agents and your team

8/22/2026 at 12:24:01 AM

Do you have a solution for degradation in accuracy when compiling larger amounts of llm-produced text?

I am also building LLM knowledge/memory systems and I've been surprised how bad LLMs are, even SOTA models, at summarizing non-trivial input batches of text. They get things wrong, distort the underlying meaning or data, etc.

by gavinboston

8/22/2026 at 12:26:50 AM

A constant challenge. Don't have a perfect solution for it yet, but importantly every change to any article logs who did it, what it did and the reasoning behind it. So I have enough data to work with as I continue to improve things.

by dariusmonsef

8/22/2026 at 12:38:00 AM

Divide and conquer essentially, is what I've found so far to work best. Split things into smaller and smaller chunks to independently be verified, double-check everything, then coalesce upwards with verified summarizations. Have benchmarks for every single task and sub-task that will happen everywhere a LLM is involved, so you can measure improvements. Takes a ton more effort and tokens in the system itself obviously, but if you're not paying per token, it seems to work pretty well, albeit feels slightly over-engineered already.

by embedding-shape

8/24/2026 at 6:17:10 PM

> Have benchmarks for every single task and sub-task that will happen everywhere a LLM is involved, so you can measure improvements

exactly. are there standard approaches or tools specifically for instrumenting LLM utilization, for applications rather than model development?

i use claude code a bit. i relentlessly push it to keep its work ephemera in source controlled and discoverable locations, following a lot of ozbrain's motivation. i also have claude generate task logs for all spawns. the theory with the task logs is to try and build some standard measures so i can see whether a thing i do (writing skills, experimenting with third-party MCP tooling, etc) actually helps in a way that is more robust than gut. i have yet to turn that effort into something useful. i'm just starting to get enough data to try to do some diving.

the problem is that this feels like the classic problem of "how do we measure productivity"? i was thinking very basic efficiency like "tokens in per tokens out" (maybe with a domain-specific value weighting function on the output tokens, e.g. code tokens > memory tokens > chat tokens) could be an possibility.

the point being, seems like you'd want to become pretty sophisticated about measurement to sell a product like ozbrain, as a basis for continuous improvement across major versions. or convincing people to use it, quantitatively rather than qualitatively.

by jayct

8/22/2026 at 1:51:25 AM

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by cindyllm

8/22/2026 at 3:04:44 AM

[flagged]

by freemindcore

8/22/2026 at 5:44:34 AM

I have a folder called reports, plans, and code-reviews in each repo. I put my md files for agents there, and voila they're in the cloud along with my source code in git. I just talk to my local agent about these files and it finds things using grep and whatever. Done. No mcp or special server needed.

I've been pitched products like ozbrain before, but I've failed to see the need over what I already have. Seems like more complication for no gain to me.

Am I missing something?

by Sammi

8/22/2026 at 6:26:46 AM

That sounds like a solid setup for engineering. OzBrain is meant for not just the eng docs, but also the business and product docs. Also my personal stuff, ie my workout log is there, health analysis, etc. And I share our family docs with my wife, so all the kids stuff and our stuff is synced across devices. I think anybody that works on a computer, regardless of industry is going to be a heavy agent user in the future, and I'm building for all of them. Super smart people already have homegrown solutions that work for them.

by dariusmonsef

8/23/2026 at 5:49:05 AM

I recently built our knowledge management system based (loosely) on the Karpathy LLM-Wiki model.

I'm not sure I understand why it is so important to be multi-agent, or for each agent to define who they are and what changes they made.

Our process uses git for tracking, so much of these details are captured natively in the merge.

Our process is

Drop a change, or something to document in an "inbox". Agent makes a branch, processes the inbox materials, updates the documents that need to be updated, updates timelines, makes a note of others on the team that may need to be notified of changes.

Creator reviews the PR and ensures the changes match how they want the document to be updated. Anyone that needs to be updated is now a reviewer on the PR.

I've just started rolling this out to the rest of the team, thankfully we are an engineering heavy organization so everyone is comfortable in Git.

The system keeps a running audit log, input is never deleted, it's stored, documents are updated, people are notified, etc. etc.

I'm just not sure what the service is offering, and how being multi-agent is solving a problem, but maybe I just haven't hit that problem yet.

by pedalpete

8/24/2026 at 12:53:17 AM

It sounds like you've got a great system for your technical folks. The question is if that works super well for sales, design, support, etc. I'm trying to build something that works equally well for the technical & non-technical folks. All connected to the same system. All in auto-pilot so nobody has to manage it.

by dariusmonsef

8/22/2026 at 9:23:08 AM

I use the LLM-wiki pattern for a structured directory of topic folders of .md files, and made it also compatible with the Open Knowledge Format [1].

My agent (Hermes) responds to a made-up command "vaultize this doc/link/text, etc" to add new .md files in the right format in the right place. The agent does a pretty good job of maintaining the index.md file, cross-links, etc.

A Quartz website builder creates a static site on my server, each MD file is a web page, and rebuilds when a new file is added [2]. This setup gives me a useful knowledge base with a great UX - across all the devices on my Tailnet, no need to run Obsidian Sync, or Syncthing.

This system is simple and works well, but i think it could maybe benefit from a memory system like Honcho to make it more effective as it scales.

[1] https://cloud.google.com/blog/products/data-analytics/how-th...

[2] https://quartz.jzhao.xyz/

by fallinditch

8/21/2026 at 11:59:48 PM

Almost all of this is stuff I have indeed "frankenstein[ed]" for myself, so consider this comment a +1 on market fit, there!

That also gives me a reason to pause, tho; the pitch in general is as solid as it can be on a site with markdown turned off (why, lord, why), but as a format minutiae megafan, I was left a little dissapointed. Where do you/OzBrain stand on Markdown formats? Could I use Sphinx with this, in rST and/or native MyST? Can it generate plain PDFs, fancy PDFs, or even animated static sites? etc. etc. etc. Not trying to gotcha, just curious to hear your thoughts & dreams on the topic!

It seems like some subculture(s) of SWE/SV/YC/AI has landed on obsidian-ish markdown with lots of wikilinks as the presumed default, which makes sense. So I'm assuming it's the same here. But also, your 'OzBrain vs. Obsidian' page does describe one difference as 'Markdown export anytime' vs. 'Markdown on disk' -- presumably that's just a hedge about hosting paradigm rather than a comment on the persistent format?

P.S. You're likely aware but there's at least one other company using Oz -- Warp's coding agent. Have you considered renaming this to something unimpeachable like DeepReasoningBrain? ;)

P.P.S. Holy hell your `eng-flow` thing is incredible. Maybe I'm behind the times, but... I mean, has anyone else processed how close we are to Minority Report and Iron Man?!

P.P.P.S. Is any part of that/this OS?

by bbor

8/22/2026 at 12:25:39 AM

Along with my conversations with the 75 founders, there were two other distinct camps that I saw... those that care about the display and UX for them to see their .md files... and those (of which I am in) that don't care, I don't want to see the markdown, it is for my agents to see and relay to me what is important.

OzBrain is text only, and basic markdown formatting (OKF). No fancy PDFS, etc. BUT that is what your agent is for. If you want to generate a fancy PDF, have an agent reference the relevant articles and generate what you want. I've considered a lot of additional services like automatic ingestion, ie every call transcript auto-ingested as a source article in the brain... but you can do that with routines or Zapier. My focus is on the infra of the data getting to and from your agents.

I think Karpathy's llm-wiki was a boost to the wiki-markdown club, and it makes a ton of sense why a technical person would adopt that. They're already veru comfortable with github and moving files with terminal commands. They're not my target audience right now, but maybe when we have more robust brain maintenance they'll decide it's jsut easier to use OzBrain and not maintain their own thing.

P.S. In true move fast break things mode... I spent a good 15min working on the name. :) It works for now and if it really works well for people and they love it, the name won't matter so much.

P.P.S. Thanks, it's either genius or incredibly stupid... hard to know these days as stuff moves so quickly and your AI tells you you're so smart. It's what I HAD to build, because I don't speak any of the current languages. I lost my coding skills long ago, so at a point where it might make sense for a smart engineer to review or approve something... I needed to insert an agent that actually knows what it's talking about and understands how to make a good decision. That thing is constantly improving or breaking... I tried to automate one more step a few days ago and have been paying the price and bug fixing my thing that builds things, instead of just BUILDING THE THINGS! ugh.

P.P.P.S. I mean I used OzBrain to build OzBrain and make that eng flow work. If you think something in there would be useful, I'd just point an agent at it that is connected to your whole workspace/flow and ask it what is useful/dumb.

*Bonus point. Because my whole brain is in OzBrain and it knows what I'm building, why, how... I can take a talk transcript like Garry's from Startup School and just ask an agent "Save this transcript in the brain as a source and then review it and show me where this validates or invalidates some of my thinking. And what else would be interesting for me to consider in my broader work."

by dariusmonsef

8/22/2026 at 3:57:01 AM

I think the central question for a such memory system is whether we or the agents can find the relevant information and how to organize these data as changes continues to come in. Would we miss something in the retrieval process? How do we organize the information so they stay actual and correct without piling up the garbage? Of course we can continue to concatenate the data and tag them with version and date, but then we have to face the problem of extracting the relevant information in a short time. If we delegate that problem to a LLM, long context retrieval performance will degrade and the cost will explode.

That is the reason why we condense the information in the first place. Forgetting + Synthesizing are the necessary parts of learning and basically with memory + smart retrieval we want to build a learning system.

by sinuhe69

8/22/2026 at 7:01:42 AM

What I'm building has a regular maintenance it runs across the knowledge. A. to chunk long articles down into smaller chunks or information with good routing. B. To review the latest thinking to make sure old thinking is deprecated and linked.

This will be the big challenge with this. Storing/Retrieving works fine across hundreds of articles... I have more than 500 right now just from OzBrain and a bit of the thing I was building before. When it becomes thousands with dozens being added all the time, the maintenance will become more of a necessity.

I lean a little bit towards store everything because the system's abilities are changing so fast right now, that having our previous thinking or reasoning is useful in being able to improve or correct current assumptions based on previous data.

by dariusmonsef

8/22/2026 at 4:07:59 AM

[flagged]

by 8lamaster8

8/22/2026 at 7:48:59 AM

How has traction been so far? And are there any valuable cross team/agent use cases you actually have experienced or are they theoretical?

I run https://smalldocs.org, which focuses on making Markdown a highly expressive space for agents (think slides, spreadsheets, charts, mermaid diagrams, etc.). I have built a local library which lives in the browser but reflects your local file system - explainer here: https://smalldocs.org/connect?return=%2Flibrary, demo here: https://smalldocs.org/library?demo=1. Which is pretty useful when you want to find local Markdown files.

However I am just about to introduce very similar functionality to yours - a cloud + agent access. Right now I don't know if this will actually be useful, but I think it will likely be something I can charge for. I have a few hundred developers that use SmallDocs on a weekly basis (https://smalldocs.org/analytics), but right now it's just a free local-first tool.

Code available here: https://github.com/espressoplease/smalldocs

by FailMore

8/22/2026 at 5:14:43 AM

nice :)

> love to hear how you did it

this is ours we built for Hedgy https://setoku.com

our approach was to build a data lake that sucks company data into clickhouse and staple that to a knowledge store. this way the brain has a stream of live facts and builds knowledge around it. we gave up on trying to make the knowledge store human-readable -- i totally think there could be something there, but for now we just care about enhancing the agent you're using. it makes my claude code very good at debugging and gives everyone a way to vibecode dashboards and small internal tools with real data.

i also run a personal instance for my wife and I that sucks in monarch money and gmail. mostly use it to chat through big money moves.

by rgbrgb

8/22/2026 at 6:36:38 AM

Cool. If I'm reading it right, it only allows read access? How do you get knowledge into the brain?

I'm assuming that the content you put in is all agent driven. Source files (ie, a transcript, a data log, stuff that shouldn't eery change) get recorded but the articles are some kind of agent reasoning on top of it. I don't have any interface to edit an article. Your agent does it.

And yeah I agree about not building for human consumption. The agents create and consume vasly more data than we can.

I don't do any ingestion, I figure out can automate that in a routine or a zap or whatever you want.

by dariusmonsef

8/22/2026 at 2:04:47 PM

for knowledge writes in setoku, any agent that does queries can propose knowledge or edits. edits are flagged for admin/curator review. agents can query the pending and confirmed knowledge but basically have a flag that tells them what's been "blessed".

i like your conceptual focus on not pairing it with data. for me, it's just a practical thing: i want one tool i can have a colleague (or my wife) install that adds all the context they'll need (and then one spot I can curate and govern that context).

by rgbrgb

8/22/2026 at 1:45:37 AM

This is interesting.

Would you consider this a different type product/benefit than all the "memory" things we have seen popping up everywhere?. Is it different just because it lives in the cloud? To me it feels like a different thing than memory.

by indigodaddy

8/22/2026 at 2:09:03 AM

I think they’re similar but different. Memory is usually single user focused, a summary of specific facts or instructions. OzBrain is everything that was captured, reasoned, promoted, etc. and auditable record of what the latest thinking is and why. When agents are the primary user you need a way to capture why they ended up at where they ended up. Memory is more like the filtered summary of everything it has saved as important.

by dariusmonsef

8/22/2026 at 6:55:41 PM

Thanks!

by indigodaddy

8/23/2026 at 11:54:34 AM

I might have a slightly different take. I think tools like Liner, or project management kanban boards like Trello, could actually be the best way for humans and AI to collaborate in the future. My own team of AI employees has already started working and collaborating in this way.

by ericnice

8/22/2026 at 7:28:12 AM

A quick side note: I opened the page and my brain went into "It's an AI-landing-page there is no value there"-mode. That added quite a lot of friction to start reading it.

by someRandomValue

8/22/2026 at 8:20:10 AM

Me too. It demanded deep digging to find out how it was done and how is it different from other products. And my brain was resisting all the way through!

I wish the author had made a mental image like “OzBrain is a Zettelkasten system built with AI background maintenance” then things will become much easier for the readers to understand.

by sinuhe69

8/22/2026 at 9:35:55 AM

Also thanks for doing the mental hurdling to get thru! I will work on that image...

by dariusmonsef

8/22/2026 at 9:33:50 AM

Noted! Thanks. I appreciate you getting thru it. What do you think would have made it more clear/faster?

by dariusmonsef

8/22/2026 at 8:08:46 AM

100%! It is a real mental block!

by woggy

8/22/2026 at 9:36:28 AM

What do you think would improve that? Different language? More visuals?

by dariusmonsef

8/22/2026 at 8:24:37 AM

Hi, I really liked your idea. It is really helpful for companies or teams that use multiple models. Also, the design of the site was very good and I really enjoyed it.

by pouya1dev

8/22/2026 at 12:04:50 AM

I’m not sure I get the value over Obsidian, can you explain the static file issue? Only happens at 7K+ individual files? What happens if you always conjoin files?

by gosolozero

8/22/2026 at 12:14:02 AM

Obsidian would fall into the same answer as how is this different than gBrain. Obsidian is a powerful and configurable... but requires more work to maintain and sharing knowledge with others is more difficult. I want this to be a super easy way for agents to connect to my knowledge, and make it easy for me to share my chunks of knowledge with my teammates and their agents. Just MCP in and have your agents get to work.

by dariusmonsef

8/22/2026 at 1:00:13 AM

I'd say gBrain is also more structured to the priorities of a VC and less of a general-purpose graph-based memory. There are tons of hard-coded regexes that may work beautifully for Garry's priorities and workflow that don't fit other use cases, and are probably really brittle even if you're a VC who uses different words in your notes.

by panarky

8/23/2026 at 2:25:35 AM

Great entry point! I've also run into this issue and am trying to solve it.

But when I try this in different ways, a common issue is that the LLM often drifts. Sometimes it just drops important issues or records more trivial info than I need. Wondering how you solve this issue in OzBrain.

by pioneerjeff

8/24/2026 at 12:56:06 AM

I'm not trying to solve the ingestion problem. It is there for sure, agents are pretty terrible at always following directions, so hopefully it's easy enough to just say "Put that in the brain" when in doubt. What is good is to save the source file ie transcription, raw comment/text, so that it is always there for future reference so the reasoned summary can be audited.

by dariusmonsef

8/22/2026 at 2:15:39 AM

It’s very encouraging to see serious attempts at addressing continuity between agents’ outputs. Right now, everyone seems to be figuring out their own way of maintaining consistency across sessions without endlessly over-contextualizing each new one.

This feels like an important layer of the emerging agent stack, and I think this Show HN will be useful to a lot of people working through exactly that problem.

by rendonroman

8/22/2026 at 5:01:52 AM

What a surprisingly lovely comment section. I love the curiosity and positivity. Hope you have a great day.

by dariusmonsef

8/22/2026 at 5:37:58 AM

I have been looking for something like this but would actually want to self host due to the potential value/privacy of the data.

by tidbeck

8/22/2026 at 7:03:26 AM

Yeah, I wouldn't put your crypto wallet into OzBrain or anything... this is more the day to day operation of your business or personal life. While that is also valuable, our data is already sitting on a lot of servers so might as well make it useful for you and your agents.

by dariusmonsef

8/22/2026 at 5:59:16 AM

What's stopping you from putting your md files for agents right into your git repo along with the rest of your project files?

by Sammi

8/22/2026 at 6:37:23 AM

I would like to have more of a global memory for personal assistant type of agents. Auto updated and maintained. Browsable.

by tidbeck

8/22/2026 at 7:28:31 AM

How do you stop agents from working over the same document at the same time? We do markbase for this exact reason.

by ksajadi

8/22/2026 at 6:16:33 AM

I'm Johnny.Decimal. [0]

I use an Obsidian vault and my system. "It's at 23.16", I tell Claude. From that it can instantly find my notes and files.

No extra software needed. Just some basic structure. Claude loves it. [1]

Oh yeah, and to keep conversation context contained so you can /resume and so on, just

    $ cd 23.16
    $ claude

[0]: https://johnnydecimal.com

[1]: https://www.youtube.com/watch?v=mZAT0Ft--wE

by jen729w

8/22/2026 at 6:30:44 AM

Cool. Johnny Decimal sounds badass too, like maybe if an agent loses some of my work it will hunt it down and kill beat it up ;)

Are you seeing engineers use it or more every day people getting the hang of it to?

by dariusmonsef

8/22/2026 at 1:26:59 AM

This is a fascinating place in the stack to sit. I need to dig in a lot more. Nice start.

Good luck with the showing!

by cyrusradfar

8/21/2026 at 11:22:36 PM

So is this cloud sync for my Md files? Who pays for the diffing and versioning?

by travisueki

8/21/2026 at 11:39:18 PM

In a way yes. A hosted llm-wiki, where I handle the diffing, versioning and audit log of what was changed, by what agent and why.

by dariusmonsef

8/22/2026 at 2:21:11 AM

So a git repo + md files?

by 0x457

8/22/2026 at 2:27:08 AM

Yeah, close. But all handled so a user can just focus on connecting the MCP and doing work. Goes to my answer elsewhere here about different between gbrain / llm-wiki… those are highly configurable and powerful, but require technical knowledge and time. I think the vast majority of tech workers will need “that for dummies” ie this just works for them.

by dariusmonsef

8/22/2026 at 5:19:27 AM

much needed, will give it a crack - congrats on shipping!

by chrisrickard

8/22/2026 at 2:27:13 AM

I have been thinking about this idea for a while. Cool work.

by ggangsir

8/22/2026 at 2:44:43 AM

Thanks! Where did you end up With your thinking? Would love to have you try it and tell me where you think k it could be better.

by dariusmonsef

8/24/2026 at 4:41:39 AM

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by astronaut1

8/23/2026 at 10:01:37 PM

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by gde05

8/22/2026 at 12:57:02 PM

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by toedat

8/22/2026 at 3:33:08 AM

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by 8lamaster8

8/22/2026 at 3:40:32 AM

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by dshverify

8/22/2026 at 3:37:59 PM

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by lovelyxyz520

8/22/2026 at 10:49:43 AM

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by SipitenoMK

8/22/2026 at 4:43:29 AM

[dead]

by jing09928

8/22/2026 at 1:36:58 AM

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by xms17189

8/22/2026 at 2:07:38 AM

Meh

by NamlchakKhandro

8/22/2026 at 2:11:27 AM

While I agree with you on most of what you’re saying, I think there is still an audience outside of your viewpoint that may see value. But thanks for sharing your insights! Super helpful.

by dariusmonsef

8/23/2026 at 2:35:08 AM

I came here to say exactly this. No git repo - no sharing - just another sign up and be AMAZED page. Meh

by lol8675309

8/24/2026 at 12:58:42 AM

Thank you for your insight. FYI You can share your brain with collaborators/partners. Did you read my comment on the post? You just clicked a link, looked at a homepage and got a meh-boner to come back and comment?

by dariusmonsef