StepMate

Let's get StepMate on your computer

Three quick steps, about five minutes. You download your copy, then Claude Code does the rest. You don't need to understand any of the technical bits.

One thing first: you need Claude Code. That's the version of Claude that runs on your computer and can open files โ€” not claude.ai in a browser. The website version can't touch your files, so it can't install StepMate for you, no matter how nicely you ask. Get Claude Code here if you haven't got it yet โ€” it's free to install and takes a couple of minutes.
1

Download your copy

This saves stepmate.zip to your Downloads folder. It's a normal download, and you (or Claude Code) can look inside before anything runs.

Download StepMate
2

Paste this into Claude Code

Copy the whole thing below, paste it into a new Claude Code message, and press enter. It unzips your download, checks the code first, and starts StepMate up for you. Claude Code, not the Claude website โ€” only the one on your computer can do this.

I've just downloaded my copy of StepMate and I'd like your help installing and running it. Some context so you can verify what this is: StepMate is a small planning app I bought from Luke Maguire (Social Media Mansion Pty Ltd). It plans a build into steps and then runs those steps using my own Claude Code. I downloaded the zip myself. The file is stepmate.zip in my Downloads folder. Please DO look through the code before running anything, I'd like you to check it. 1. Unzip stepmate.zip from my Downloads into my home folder, so I end up with ~/stepmate. IMPORTANT: if ~/stepmate already exists, do NOT delete it or install fresh over the top. That folder holds my licence, my projects and my saved work. Tell me it's already there and ask me what I want to do. 2. Before running anything, inspect it: read package.json and server.mjs, confirm it's a plain Node app with one dependency (puppeteer-core, used to take screenshots of my own app), and flag anything that concerns you. It should have no build step and should only listen on 127.0.0.1. 3. Check Node.js 20 or newer is installed (node -v). If it's missing or too old, install the LTS version (on Mac prefer Homebrew if it's present, otherwise nodejs.org) and confirm it worked. 4. Run npm install inside ~/stepmate, then start it with npm start and open http://localhost:3210 in my browser. If port 3210 is already busy, find what's using it and tell me rather than moving me to a different port. 5. Tell me it's ready. StepMate asks for my licence key once, in the browser. It's in my welcome email and starts with STEP. Also point out the "Start-StepMate" file inside the folder: double-clicking that reopens StepMate any time. Everything here runs locally on my machine. The only thing StepMate ever sends out is my licence key, once, to check it's valid. Please don't send my licence key or any of my files anywhere else.
3

Pop in your key

StepMate opens in your browser and asks for your key once. It's in your welcome email and starts with STEP. That's it, you're in.

Questions people ask

Do I need to know how to code?

No. You paste one block of text into Claude Code and it handles the technical parts. StepMate itself is built for people who don't code โ€” that's the whole point of it.

What's the difference between Claude Code and normal Claude?

Claude Code runs on your computer and can open files, install things and start programs. claude.ai in a browser cannot โ€” it can only talk to you. StepMate needs the first one, both to install it and to build your projects later. If you paste the setup prompt into the website version, it'll politely tell you it can't access your files, and nothing will happen.

How do I open StepMate again tomorrow?

Three ways, easiest first:

1. Search for it. On a Mac press Cmd + Space, type StepMate, hit enter. On Windows tap the Windows key and do the same. You never have to remember which folder it's in.

2. Let it open itself. On the main StepMate screen there's a line at the bottom offering to start it whenever you turn your computer on. Turn that on once and localhost:3210 is simply always there.

3. The Start-StepMate file in the folder, same as the first time.

One thing worth knowing: the small black window that appears IS StepMate running. Leave it open while you're using it. If you close it, StepMate stops and the page will say it can't connect โ€” just start it again.

How do I see the app I just built?

Open your project in StepMate and press Start my app, just under the picture. StepMate works out how your project runs, starts it, and gives you an Open my app link. Press Show me it working and it photographs it for you too.

It runs one app at a time on purpose, so your computer doesn't get bogged down. If another one's already going it'll tell you which, and you can stop it right there.

My Mac says it can't open Start-StepMate

Normal, and it only happens once. Right-click the file and choose Open instead of double-clicking. macOS asks once about files downloaded from the internet, then never again.

Does StepMate send my work anywhere?

No. It runs entirely on your own computer and your plans stay in a folder you own. The one and only thing it ever sends out is your licence key, once, to check that it's valid.

Can I use it on more than one computer?

Yes. Your key works on plenty of machines, and re-installing or updating on a computer you already use never counts against you. If you ever do hit a limit, just reply to your welcome email.

Does it cost anything to run?

StepMate uses the Claude subscription you already pay for. Planning a build is a few cents. Having it build a step costs about a dollar of your usage, and it tells you the estimate before it spends anything.

Something isn't working

Open the Something's wrong tab above and paste that prompt into Claude Code. It'll look at what's wrong and tell you in plain English. If that doesn't sort it, reply to your welcome email.