Learn Claude Code

Getting Started

From zero to your first message in under 5 minutes. The animation below uses the running case 'Patient Capital → Corporate ESG Performance' to walk through the whole flow. Step through it manually or let it auto-play.

From zero to your first message in 5 minutes

Terminal — ~/papers/pc-esg
$
Open a terminal
Terminal.app on Mac, PowerShell on Windows. Any folder is fine.
1/7

1. Install Claude Code

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

You need Node.js 18 or newer first. Mac: brew install node. Windows: install from nodejs.org. After install, claude --version should print a version number.

2. Launch inside the empirical project folder

cd ~/papers/pc-esg
claude

Claude Code runs from a working directory, so cd into your project folder before launching. We use the Patient Capital → ESG project as the running example. First launch asks you to sign in or paste an API key.

Next

After setup, head back to the home page or use these two entries to see how each mechanism works.