Setup Commands

Copy and paste each command into your terminal. Run them in order from top to bottom.

1. Prerequisites

Install Apple's command line developer tools (required for Homebrew).

Xcode CLI Tools xcode-select --install

2. Homebrew (Package Manager)

Homebrew is the easiest way to install developer tools on macOS.

Install Homebrew /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

Fix Homebrew PATH (Apple Silicon Macs) echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.zprofile && eval "$(/opt/homebrew/bin/brew shellenv)"

3. Node.js

Node.js is required to install and run the AI agents.

Install Node.js brew install node

Fix NPM prefix (avoids permission errors) npm config set prefix /opt/homebrew

4. Install an AI Agent

Pick the agent you want to install. You only need one to get started.

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

Launch claude

Install npm install -g @google/gemini-cli

Launch gemini

Install npm install -g @openai/codex

Launch codex

5. VS Code Shell Command

Install the code . command so you can open VS Code from the terminal. VS Code must be installed first (see Prerequisites).

1 Open VS Code

2 Press Cmd + Shift + P to open the Command Palette

3 Type Shell Command: Install 'code' command in PATH and select it

4 Restart your terminal. You can now run code . to open the current folder in VS Code.

1. Node.js

Download and install from nodejs.org (choose the LTS version). Or install via winget:

Install Node.js via winget winget install OpenJS.NodeJS.LTS

2. Verify Installation

Close and reopen your terminal, then check that Node.js is installed:

Check Node.js version node --version

Check NPM version npm --version

3. Install an AI Agent