Skip to content
AI Building

Build an Atrium app with AI

One minimised file with everything an AI tool needs: how to work, the hard rules, the full app contract and the design system. Upload it to any LLM, then describe your app.

ATRIUM-AI-BUILD.mdMarkdown
  1. Upload the file to ChatGPT, Claude, Cursor or any AI tool (or paste its contents).
  2. Describe the app you want in plain English.
  3. Let the AI ask you for the API key when it needs one.
View the file
Auto

Foundation

Layout in COHO

View .md

Where your screens appear inside COHO, and how wide they can be.

Where Width Design for
Quick view (side) 360px to 480px One column. Few table columns, or a summary list.
Modal Up to about 960px Two columns at most.
Full app page The whole content area Normal page layout, max reading width about 72 characters.

COHO draws the frame, the title bar and the close control around your screen. Start your screen with a page header, and keep at-app padding (16px) as the outer margin.