# The First Thing I Set Up Before Any AI Coding Agent

> Source: <https://dev.to/scsoi/the-first-thing-i-set-up-before-any-ai-coding-agent-4i19>
> Published: 2026-10-24 08:39:01+00:00

Before I let any AI coding agent touch my machine, I do one thing: give it its own drive letter.

## 
  The 5-minute setup

1. Create a folder for the agent workspace
2. Map it to a drive letter
3. Point the agent at that drive
4. Start working

## 
  Tools

- Local folder mapping: subst.scsoi.com
- WebDAV/cloud mapping: drive.scsoi.com

## 
  Why first?

Because the first time an agent runs `rm -rf`, you want it to be confined to its own drive, not your home folder.

Set up the sandbox before you set up the agent.