S0 Docs/Overview

Installation

System 0 is a Python package. Install it with pip.

Requirements

  • Python 3.10 or later
  • An LLM CLI tool (Claude CLI is the default, installed separately)
  • Git (recommended, for worktree isolation)

Install with pip

pip install system0

Install from source

git clone https://github.com/ultradeep/system0.git
cd system0
pip install -e .

Verify installation

s0 --help

You should see the full help output with all commands and options. If you see command not found, make sure your Python scripts directory is in your PATH.

LLM backend setup

System 0 uses an LLM to analyze targets. The default backend is Claude Code (claude CLI). Install it separately:

npm install -g @anthropic-ai/claude-code

You can use any LLM with a CLI interface by specifying --brain-type generic-cli and configuring the binary path in your instance config.

Next steps

Once installed, head to the Quick Start guide to run your first analysis.