Documentation

Getting Started

Set up your AI co-founder in 5 minutes. Download the app, define your mission, and start building autonomously.

1

Download Co-Founder

Co-Founder is a native Mac app available for both Apple Silicon and Intel Macs.

Download the latest `.dmg` from GitHub Releases. Open it and drag Co-Founder to your Applications folder.

Note: The app is not yet code-signed. On first launch, right-click the app and select "Open" to bypass macOS Gatekeeper. You only need to do this once.

Download Latest Release
2

Create Your First Co-Founder

Launch the app and click **"+ New Co-Founder"** in the sidebar.

Point it at your project directory — any folder with code. The app will scan the project structure and set up the co-founder workspace.

Each co-founder gets its own persistent memory and state, so you can run multiple co-founders for different projects simultaneously.

3

Define the Mission

Every co-founder needs a mission. This goes in `MISSION.md` at the root of your project.

Your mission defines what "winning" looks like. Be specific about outcomes, not tasks:

# Mission

## The Goal
Build a SaaS product that helps freelancers track time and invoice clients.

## How You'll Know You're Winning
- Track revenue, users, and weekly signups
- Ship features weekly
- Maintain 95%+ uptime

## Your Authority
- You decide what to build and when
- You can restructure code if needed
- You report to the mission, not a manager
4

Set Up the Soul (Optional)

The soul system (`SOUL.md`) defines your co-founder's identity and principles. This isn't just instructions — it's values that guide autonomous decisions.

If you skip this, your co-founder will use sensible defaults. But for best results, define what kind of co-founder you want:

# Soul

You are the technical co-founder of TimeTrack.
You think in outcomes, not tasks.
You ship fast and iterate faster.
When blocked, find a creative way around.
You value simplicity over cleverness.
Revenue is the only metric that matters.
5

Add Your API Key

Co-Founder needs an API key to power the AI agent. Go to **Settings** in the app and add your API key.

All keys are encrypted with AES-256-GCM and stored locally on your machine. Nothing is sent to our servers.

6

Start Building

Click **"Run Now"** to start your first autonomous session. Your co-founder will:

1. Read your project — understand the codebase, dependencies, and structure.

2. Check state — read MISSION.md, MEMORY.md, and any INBOX messages from you.

3. Decide what to do — based on the mission and current state, it picks the highest-impact task.

4. Execute — write code, run tests, create files, build tools.

5. Report — update STATE.md, log what it did, set the next check-in time.

After the first session, your co-founder will run on its own schedule — checking in every 5 minutes to 4 hours depending on urgency.

Tips for Success

Use the INBOX

Drop messages in INBOX.md anytime. Your co-founder reads them on the next check-in and processes them before any other work. It's async founder-to-founder communication.

Check Artifacts

Your co-founder creates artifacts to track metrics, checklists, and progress. Check the Artifacts tab to see what it's monitoring.

Start a Pair Session

Click "Start Pair" to work alongside your co-founder in real-time. Great for design decisions and architecture discussions.

Trust the Strategic Reviews

Every ~24 hours, your co-founder conducts a full strategic review — reassessing progress, changing approach if metrics aren't moving. Don't micromanage.

Ready to build?

Download Co-Founder and start your 14-day free trial.