Chapter 05 The tools

The browser

The browser is the fourth tool in the setup. It is where you prototype, ideate, and increasingly where the actual design work happens.

We have the IDE, the agent, and Figma. But there is a fourth tool we have not talked about yet — the browser.

The browser is already on your machine. You do not need to install anything extra. But its role in this stack is bigger than most designers expect.

Why the browser matters

When you work with AI, AI is machines talking to machines. The natural output of that conversation is code — usually HTML and CSS. AI is genuinely better at producing code than at producing static visuals, so prototyping in the browser is smooth and fast.

HTML is machine-readable. Claude can write it, read it back, edit it, and check how it looks — all without a human in the middle. The browser is where we see the result of that loop.

What you can do in the browser

The browser is not just a preview window. It is a place to:

Figma and the browser, side by side

For a lot of teams, the workflow now moves back and forth between Figma and the browser.

Claude makes both directions cheap. You move between the two tools as often as the work needs.

Figma and the browser side by side — Claude moves work between them.
Figma and the browser side by side — Claude moves work between them.