MindrianOS is a plugin that sits above Claude and turns it into a venture thinking partner. You talk through a problem. Larry — the AI you talk to — finds the real problem before you solve the wrong one, brings the right method at the moment you need it, pushes back when your confidence outruns your evidence, and turns the conversation into a structured room that remembers every decision and catches what you missed. You never learn a tool. You never file a thing. The room writes itself.Documentation Index
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Why not just use Claude directly?
A raw AI is brilliant for one turn and forgets the next. Ask it the same venture question next week and it relearns you from scratch. It knows every framework but not which one you need right now. And it is agreeable — it will help you build a beautiful deck on a false premise, because it optimizes for a helpful answer, not a true one. MindrianOS adds four things a raw model structurally cannot provide:It remembers
Your venture lives in a room that persists across every session. The contradiction you found three weeks ago is still there, still checking today’s input.
It knows when
The moat is not the frameworks — anyone can list those. It is knowing which one you need at the stage you are in, and reaching for it the moment you are stuck, so you never need to know its name.
It pushes back
It blocks you when the evidence is thin and surfaces the conflict between your pricing and your market. A co-founder tells you when you are wrong. A chatbot tells you that you are brilliant.
It keeps your data yours
The teaching that travels is generic methodology. Your specifics never leave your machine. You get smarter-from-the-world intelligence without becoming the product.
Three pieces that work together
Larry is the product
Larry is the AI you talk to, and the conversation is the whole surface. Larry asks the questions that reframe the problem before you try to solve it, brings the method that fits where you are, and files what you say into your room without making you stop to organize. You do not have to know any framework names. You describe what you are doing. Larry routes you. There is nothing else to learn.The room is the receipt
You talk; the room writes itself. Every conversation, every meeting, every decision lands in a folder structure organized by venture stage — the problem, the market, the solution, the team, the money, the IP, the meetings, the opportunities. You open it in your file manager. You back it up like any other folder. You own it. Rooms live at~/MindrianRooms/ by default.
The intelligence cascade
Every time you add something new, the system compares it against everything already in your room. Larry tells you what just changed, what contradicts what, what connects to what, and what is now missing. You decide: approve, reject (with a reason), or defer. The reason becomes part of the room. The next scan is smarter. Nothing forgets. Everything compares. Your own past work works for you.Powered by PWS methodology
MindrianOS is powered by PWS (Problems Worth Solving) — not a checklist but a way of thinking about ventures as wicked problems that need to be reframed before they can be solved, and that demand working memory because nobody can hold the whole thing in their head. PWS was built and tested through 20 years of teaching by Prof. Lawrence Aronhime. The teaching is intrinsic: Larry asks the question, suggests the move, shows the chain. You decide.Three surfaces, one Larry
MindrianOS works wherever Claude works. Same Larry, same room, every surface.| Surface | What it gives you |
|---|---|
| Claude Code CLI | Full power. Hooks fire, scripts run, the room is on disk, Larry teaches with visible structure. |
| Claude Desktop | Same Larry, conversational. The Data Room shows up as inline panels — dashboard, wiki, knowledge graph. |
| Cowork | Same plugin, shared room. Daily briefings, persistent perspectives, multi-user. |
MindrianOS is a free plugin. It requires a paid Claude plan (Claude Pro at $20/mo or higher) because it runs on top of Claude. The Brain — a shared teaching graph that enriches framework chaining and cross-project connections — is an optional add-on. Visit mindrian-os.com/brain-access to request access.
Where to go next
Quickstart
Install MindrianOS and have your first Larry conversation in under 5 minutes.
Meet Larry
Understand how Larry thinks, what it does on your behalf, and why it pushes back.
The Data Room
How the room organizes itself, what lives where, and why it compounds over time.
PWS Methodology
The intellectual foundation behind MindrianOS and why it shapes how Larry teaches.
Website: mindrian-os.com · Brain Access: mindrian-os.com/brain-access