Everything it does, and how.

What C4Stage is

C4Stage is a living architecture canvas built on the C4 model. You describe your software estate once — people, systems, containers, components, datastores — and the canvas renders it as one drill-down diagram. From there it stays alive three ways: an AI assistant edits it in plain language, health probes paint real production status onto every box, and every save becomes a version you can diff and restore.

C4 in one sentence: the same architecture drawn at four zoom levels — context (who talks to your system), containers (the deployable things inside it), components (the parts inside those), and code. C4Stage puts the first three on a single canvas: expanding a box takes you a level deeper without switching diagrams.

The fastest way to learn is to open the live demo in another tab and try each topic as you read. Every page of this manual is short on purpose — pick a topic from the list, or start with Getting started.