Draw Your Architecture, Ship Your Code

What if you could sketch an architecture diagram and have it become real code?

That's not a hypothetical. It's something you can do right now on Headstarter. Paste any GitHub repo, get an architecture diagram generated automatically, edit it however you want, and watch as your diagram edits turn into actual code changes. No prompting. No context-switching. Just draw what you want your system to look like and let AI handle the rest.

From Diagram to Code in Three Steps

Go to the Repo Explorer, paste any GitHub repository URL, and click the "Architecture Design" tab. AI analyzes your codebase and generates a full architecture diagram — your API routes, database connections, services, and how everything connects. Then you edit the diagram, and Headstarter turns your edits into code. Step through the full experience below:

This isn't a generic template. It's generated from your actual codebase. The diagram shows real components from your repo, labeled with real names. It even polishes itself automatically — straightening arrows, fixing overlapping labels, and cleaning up the layout while you watch.

The smart part: Scotty only reacts to real architectural changes. If you just drag a box to reposition it or resize something, nothing happens. Only when you add a new component, rename a service, draw a new connection, or delete something will Scotty step in. And when it does, every affected file is generated together — cache keys, TTLs, and invalidation logic are consistent across the entire change.

Why This Is Better Than Prompting File by File

Today, most engineers use AI to write code one file at a time. Open a file, write a prompt, get some code. That works for small things, but adding a caching layer isn't a single-file task. It touches your API routes, your data layer, your configuration. When you prompt file by file, you have to keep everything consistent yourself.

This is the workflow we described in "The Last Line of Code". Instead of writing code line by line, you design at the architecture level and let AI handle the translation. You focus on what your system should look like, not how to implement it.

Try It Yourself

The full workflow takes six steps:

Your diagram is saved automatically. Come back anytime and pick up where you left off. If you want a fresh start, hit "Regenerate" to create a new diagram from scratch.

Every edit and generation is saved automatically — you never lose work. Come back later and your diagram is exactly where you left it.

What's Next

This is just the beginning. Right now you can make single-step architectural changes — add a component, rename a service, draw a new connection. We're working on multi-step flows where you can redesign entire sections of an architecture and get a comprehensive migration plan.

We're also building the reverse direction — making code changes and having the diagram update automatically to stay in sync. Architecture diagrams used to be documentation you made after the fact. Now they're the tool you use to build.

Stop writing code. Start designing systems.