Company Brain Starter Kit: business context your AI agents actually read

Free: build your company overview in 2 minutes

Answer five questions and download 00-overview.md, the first file in the brain. It runs in your browser; nothing you type is sent anywhere.

Company or project name

In one sentence: who do you help do what?

What do you sell? (one per line)

Who is it for? (one per line)

What should an agent never get wrong? (one per line)

Preview

What's in the full kit

company-brain-kit/
├── AGENTS.md                 how agents read the brain and propose updates
├── CLAUDE.md                 imports AGENTS.md for Claude Code
├── .cursor/rules/
│   └── company-brain.mdc     always-on Cursor rule pointing at AGENTS.md
├── SETUP.md                  20-40 minute setup guide
├── PROMPTS.md                10 prompts to fill and maintain it
├── WEEKLY-REVIEW.md          15-minute ritual so it doesn't go stale
├── brain/
│   ├── 00-overview.md
│   ├── 01-customers.md       ICP, their words, objections
│   ├── 02-offers-pricing.md  the only place prices come from
│   ├── 03-voice-style.md
│   ├── 04-decisions.md       what you decided and why
│   ├── 05-glossary.md
│   ├── 06-processes.md       SOPs
│   ├── 07-metrics.md
│   ├── 08-people-roles.md
│   ├── 09-priorities.md
│   └── inbox.md              where agents propose changes
└── example/                  every file filled in for a fictional company
    └── brain/ ...

Why I built it

Every new session, I was retyping the same things: what we sell, who it's for, how we write, what we already decided not to do. Agents are good at work and bad at remembering your business. A folder of short, true files that every tool reads first fixed most of that for me.

Lots of people are posting about "company brains" this week. The idea is simple. The hard parts are knowing which files to write, how specific to be, and how to stop it from going stale. That's what the kit is for.

Agents propose, you decide. AGENTS.md tells agents to add suggested changes to brain/inbox.md instead of quietly rewriting your files.
One source of truth. CLAUDE.md and the Cursor rule point at the same AGENTS.md, so every tool reads the same rules.
A worked example. Every file is filled in for a made-up company, so you can see how specific to be.
Safe by default. Clear rules against putting secrets or customer personal data in the brain.

Get the full kit

$19, one-time

All the templates, the agent instruction files, the setup guide, 10 prompts, the weekly review, and the filled-in example. One zip, ready to drop into your project.

Get the Company Brain Starter Kit for $19

Instant download after checkout. Plain markdown files. Works in any repo or folder.

Questions

Which tools read these files?

Codex and many other coding agents read AGENTS.md. Claude Code reads CLAUDE.md, which in this kit imports AGENTS.md. Cursor reads project rules in .cursor/rules and also supports AGENTS.md. The setup guide links each tool's own docs. For any other tool, start the session with "Read AGENTS.md and follow it."

I don't write code. Is this for me?

Yes, if you use an AI tool that works in a folder of files. You fill in plain text; no code needed.

Is it affiliated with any of those tools?

No. It's an independent kit I made. Tool names are used only to say what the files work with.