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28 March 2026

How I built a structured AI operating system on top of Claude — and launched it for $49

By Phil Langbridge · 8 min read · Bath, UK

I run three businesses. A taxi company with 55 drivers. A burger bar I'm launching in May. And an affiliate finance site. I don't have a team. I have Claude.

The problem with Claude — and with most AI tools — is that they make you do too much work. Every session starts from zero. You re-explain your business. You re-explain your preferences. You get generic advice that doesn't account for the fact that you're a solo founder in Bath running a dispatch operation, not a SaaS startup in San Francisco.

So I built a system. And then I turned that system into a product.

The problem I was trying to solve

My original frustration was simple: every time I opened a new Claude session, I had to start over. Re-explain who I am, what I'm building, what I need, how I want responses structured. It was like hiring a consultant who forgot everything between meetings.

The second problem was context collapse. A session where I'm doing financial modelling is very different from one where I'm writing a job description or debugging code. Claude didn't know which hat to wear. I had to tell it every time.

The insight was simple: what if Claude could load the right context automatically, based on the task?

The three components

1. The memory file

Every Claude OS session starts with a MASTER_MEMORY.md file. It contains my business context, current priorities, key blockers, operating rules, and how I want Claude to behave. One file. Loaded at the start of every session. Claude reads it and knows the full picture without me saying a word.

2. The dispatch engine

The dispatch engine is the core of Claude OS. Type a trigger phrase — "CLAUDE build me a booking API" — and the engine routes to the right specialist mode automatically. CODER mode loads for development tasks. STRATEGY mode loads for decisions. FINANCE mode loads for numbers. You never have to think about which mode to use. The dispatch engine thinks for you.

3. The skill system

Each mode comes with a set of skills — specific instructions that activate for that task type. CODER mode loads a security auditor before every deploy. STRATEGY mode runs a pre-mortem before every major recommendation. FINANCE mode checks cash flow assumptions before giving any financial advice. Skills are the thing that turns a good response into a reliable one.

What I built over three months

Why $49

I spent a while thinking about pricing. The market for AI prompt packs sits at $5–$30. The market for proper AI systems sits at $49–$97. Claude OS is the second thing. It's not a set of prompts — it's a structured operating system with a dispatch engine, memory system, and 33 modes that took months to build.

$49 is one-time. No subscription. No tiers. No upsells. You buy it, you get everything, including all future updates.

What's working so far

LinkedIn Post 1 went live on 28 March and got 49 impressions and 4 comments within hours. The first notable engagement came from an AI tool builder working on estimates software for service businesses — the exact audience I'm building for.

The Session Optimizer free tool is live at claude-session-optimizer.netlify.app. It's the best demo of what Claude OS can do — three tools in one page, no sign-up, just open and use.

What's next

This site. Twelve more free tools. A Product Hunt launch. An X thread. And building BCB — the burger bar — in parallel, using Claude OS to run the whole operation.

I'm building this publicly. If you want to follow along, the product is at the link below.

Get Claude OS

33 specialist modes, 158 skill files, dispatch engine, session memory. One-time payment.

Get Claude OS — $49 →