A pre-configured operating system for Claude Code. CLAUDE.md, brain/ directory, memory, dashboards, vertical checklists, and self-improvement loops — built for your profession. Pick your role. Start in minutes.
A trader and a designer get the same generic output. AI doesn't know your field, your frameworks, or how you make decisions. So it guesses — badly.
AI gives a portfolio manager the same answer it gives a student. It doesn't know your risk framework, your universe, or your decision rules. So you spend more time correcting it than using it.
"I'm a [role] who works on [thing] with [constraints]." Every new chat, every new tool. The AI forgets everything the moment you close the tab.
Even if you paste background info, unstructured text wastes tokens and confuses the model. Domain-structured context gets dramatically better output — the format matters as much as the content.
A Brainfile is a structured context document — your role, expertise, preferences, workflows, and decision rules — formatted so any AI tool instantly understands how to work with you.
Each template is built by domain experts — not generic fill-in-the-blank. Structured for maximum AI comprehension, portable across every tool.
Choose the role-specific template closest to your profession. Each one is pre-structured with the right sections.
Replace the example content with your actual role, preferences, expertise, and current context. Takes 3–10 minutes.
Copy the CLAUDE.md and brain/ directory into your project root. Start Claude Code. It reads your configuration automatically — instant upgrade.
Claude Code evolves fast. New features, new capabilities, new best practices. A config you write today will be stale in 3 months. Brainfile keeps your operating system current — updated monthly as Claude Code ships changes.
We update every configuration as Claude Code ships changes. New features like hooks, MCP servers, subagents — your operating system evolves with the tool.
We ship new role templates monthly based on what our customers are doing in AI. Quant analyst. Biotech researcher. Growth hacker. If you don't see your role today, you will.
Anonymized patterns from thousands of real Brainfiles feed back into every template. What actually works in practice — not what sounds good in theory — drives every update.
Anthropic ships new Claude Code features — hooks, MCPs, memory, subagents. We update every Brainfile OS to leverage them immediately. Subscribers always get the latest capabilities first.
Think of it like antivirus software — the initial install is useful, but the value is the continuous updates that keep it effective. Cancel and you keep what you have. Subscribe and you keep improving.
Every tier includes the complete Claude Code operating system for your profession.
Try it out. See the difference.
Free forever
For professionals who live in AI.
or $1,428/yr (save 20%)
For teams and power users.
or $2,868/yr (save 20%)
30-day money-back guarantee on all paid plans. No questions asked.
Built by engineers running 72+ production Claude Code systems across trading, marketing, and product development
Works with your existing Claude Code subscription. Zero additional infrastructure. Zero API costs.
These aren't hypothetical. These are the workflows our templates are built for.
"Analyze NVDA's setup against my trading framework — momentum divergence with rising institutional volume."
With a Brainfile, the AI already knows your risk framework, position sizing rules, preferred indicators, and watchlist. It gives you analysis tuned to your strategy — not generic "here are some things to consider" responses.
Before: Generic technical analysis for any ticker
After: Analysis using YOUR indicators, YOUR risk rules, YOUR position sizing
"Draft the investor update for this month. ARR is $1.2M, we closed the enterprise deal, but churn ticked up 0.3%."
Your Brainfile knows your board's communication preferences, your metric definitions, and your fundraising stage. The AI writes in your voice, not generic startup-speak.
Before: Template investor update with placeholder language
After: Your voice, your metrics, your board's preferred format
"Review this PR for security issues. We use the repository pattern with Postgres and our auth is session-based."
Your Brainfile encodes your stack, coding standards, architecture patterns, and security requirements. Code review catches issues specific to your actual codebase, not generic best practices.
Before: Generic code review advice for any language/framework
After: Reviews against YOUR stack, YOUR patterns, YOUR security model
Prompt marketplaces sell generic templates. Personality quizzes generate surface-level profiles. A Brainfile encodes deep domain expertise that compounds over time.
The difference between mediocre Claude Code output and exceptional output isn't the model — it's the context you provide. The same prompt with a well-engineered CLAUDE.md produces radically different results than a blank project.
Most people start every Claude Code session from scratch. Power users write basic CLAUDE.md files. But the professionals getting the best results? They've engineered a complete operating system — structured context, persistent memory, task management, and self-improvement loops.
That's what a Brainfile is. Not a prompt. Not a config file. A complete Claude Code operating system designed for your profession — with role-specific rules, brain/ directory, memory templates, vertical checklists, and a self-improvement engine that gets smarter every session.
The professionals who figure this out first will have a compounding advantage. Every session gets better. Every task gets faster. The gap between "uses Claude Code" and "uses Claude Code like a senior colleague" is growing — and your operating system is the dividing line.
"I stopped copy-pasting my stack into every session. Claude Code reads my `brain/` directory on startup — it already knows my tech stack, open issues, and architecture decisions. The rules directory eliminated the 'security issues first' reminder I was repeating every single PR review."
"Our investor update used to take me 2 hours. Now it's 20 minutes. Claude knows my ARR definitions, my board's format preferences, and how I write. The Founder OS handles the weekly review, the decision log, and the board prep. It's like having a CoS that never forgets anything."
"I tried writing my own CLAUDE.md and it was fine — but 'fine' is not the point. The Marketer OS has laws I hadn't thought to codify, channel analytics structured exactly the way I need them, and a brand voice file Claude actually uses. It's a different category of tool."
"I run 6 client engagements simultaneously. Each one has its own brain/ directory now. Claude Code context-switches between clients perfectly because all the relevant context is in the files — not in my head. The Consultant OS paid for itself in the first 3-hour engagement."
"My entire trading framework — signal rules, regime filters, position sizing, risk limits — is in the brain/ directory. Claude doesn't give me generic 'consider your risk tolerance' boilerplate anymore. It applies MY actual framework. Pre-market prep went from 45 minutes to 15."
"My experiment tracker, model registry, and statistical standards are all in brain/. Before, Claude would suggest methodologies that violated our team's reproducibility rules. Now it has those rules loaded. The Data Scientist OS saved me from 3 major methodology debates in week one."
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AI-generated content is for informational purposes only and may contain errors. Always verify outputs independently. Not legal, tax, or financial advice.