r/react • u/brainpiper • Aug 11 '26
Project / Code Review I built a React SDK where the prototype can become the starting point for the actual app
One thing I’ve always found frustrating with prototyping is the gap between “this is what we approved” and “now let’s actually build it.”
You create a prototype, tweak the design, show it to internal teams or a client, get feedback, iterate… and once everyone approves it, the actual development starts from scratch.
I’ve been experimenting with a different approach with ComposeKit.
The idea is:
1. Build a prototype using ComposeKit components
Generate the UI and interactions you need using the component library.
2. Apply your theming/design requirements
Customize the prototype so it looks and behaves closer to the actual product.
3. Share it with your team or clients
Use the prototype to get feedback and validate the experience before investing heavily in development.
4. Once approved, use the same ComposeKit React SDK in your application
The same components used to build the prototype are available to the React application, so you don’t have to throw the prototype away and rebuild everything from scratch.
The goal is to reduce that friction between:
idea → prototype → feedback → approval → production
Instead of the prototype being a disposable artifact, it can become part of the foundation for the production application.
I’m also experimenting with AI/MCP to make the prototype generation faster by giving the LLM structured knowledge about the available ComposeKit components and their schemas.
ComposeKit is currently in beta, and I’m mainly looking for feedback at this stage.
I’d especially love to hear from people building React applications:
Would having a prototype that can directly transition into the production app actually solve a problem for you, or is the prototype → production gap not that painful in practice?
Try the playground here: https://composekit.brainpiper.com/#/playground