Windows Terminal Setup Guide¶

Get your Windows machine ready for AI-powered development with Claude Code, Gemini, and OpenAI Codex.

Why this matters

This setup gives you access to all 3 major AI coding assistants in your terminal. When you run out of tokens on one, just switch to another!

What You'll Install¶

Tool	Purpose
WinGet	Microsoft's package manager for quick terminal installs
PowerShell 7	Modern terminal with better features
Node.js / NPM	Runtime for Claude Code, Gemini, Codex
UV / UVX	Fast Python package installer (like pip, but faster)
Claude Code	Anthropic's AI coding assistant
Gemini CLI	Google's AI coding assistant
Codex	OpenAI's AI coding assistant

Step 1: Install Prerequisites¶

Open PowerShell as Administrator¶

Click Start Menu
Search for PowerShell
Right-click → Run as Administrator

Enable Script Execution¶

Set-ExecutionPolicy RemoteSigned -Scope CurrentUser

Install Node.js and UV¶

winget install OpenJS.NodeJS astral-sh.uv

WinGet not recognized?

If WinGet isn't available, install it first:

Install-Module -Name Microsoft.WinGet.Client

Upgrade to PowerShell 7¶

winget install --id Microsoft.PowerShell --source winget

Restart Required

Close and reopen PowerShell after installation. Verify you're running PowerShell 7 by checking the window title.

Step 2: Install AI Coding Assistants¶

Claude Code (Anthropic)¶

irm https://claude.ai/install.ps1 | iex

Desktop App Available

Prefer a desktop app? Download Claude Code at https://opencode.ai/download

OpenCode (Multi-Provider)¶

OpenCode is a multi-provider alternative that works with Claude, ChatGPT, and other models. You can authorize via your existing Claude or ChatGPT subscription (OAuth).

npm install -g opencode-ai

Desktop App Available

OpenCode also has a desktop version at https://opencode.ai/download

Gemini CLI (Google)¶

npm install -g @google/gemini-cli

Codex (OpenAI)¶

npm install -g @openai/codex

Step 3: Verify Installation¶

Run each command to start a chat session:

claude    # Anthropic Claude Code
opencode  # OpenCode (multi-provider)
gemini    # Google Gemini
codex     # OpenAI Codex

You can log in to each with your existing Google, Anthropic, or OpenAI accounts.

Claude Health Check¶

claude doctor
claude migrate-installer

doctor checks your setup for issues
migrate-installer ensures you're using the latest installation method

Terminal Tips¶

Split Your Terminal¶

Right-click on your terminal window to split into panels and run 2+ AI chats simultaneously!

Common Commands¶

Command	What it does
`cd folder`	Change directory
`cd ..`	Go up one folder
`ls` or `dir`	List files
`cls` or `clear`	Clear screen
`exit`	Close terminal

Tab - Auto-complete file/folder names
Up Arrow - Previous command
Ctrl+C - Cancel current operation

Troubleshooting¶

"Command not recognized"¶

After installing Node.js or other tools, you may need to:

Close and reopen PowerShell
Or reboot your PC

MCP Server Issues¶

When in doubt, exit completely! A full exit restarts Claude's MCP servers and often fixes connection issues.

Still Stuck?¶

See our Troubleshooting Guide for more solutions.

Next Steps¶

Once installed, head to the Quickstart Guide to run your first Seer Marketing Agent workflow!