This is a community template that adapts Design OS for use with GitHub Copilot in VS Code. All credit and intellectual property belong to Brian Casel @ Builder Methods.
Original project: github.com/caselabs/design-os | buildermethods.com/design-os
Design OS is a product planning and design tool created by Brian Casel. It helps you define your product vision, sketch out your data shape, design your UI, and export production-ready components for implementation. Rather than jumping straight into code, you work through a guided process that captures what you're building and why—then hands off everything your coding agent needs to build it right.
This template provides the agent instructions and configuration needed to run the Design OS workflow with GitHub Copilot as the AI agent. The core Design OS process, file structure, and design philosophy are unchanged.
Design OS powers a guided design and architecture process. You + AI, working together through structured steps:
- Product Planning — Define your vision, break down your roadmap, and model your data
- Design System — Choose colors, typography, and design your application shell
- Section Design — For each feature area: specify requirements, generate sample data, and design the screens
- Clickdummy — Assemble a fully navigable prototype from all designed sections to demo to stakeholders and gather feedback
- Export — Generate a complete handoff package for implementation
Each step is a conversation. The AI asks questions, you provide direction, and together you shape a product that matches your vision—before any implementation begins.
For full Design OS docs, installation, usage, & best practices, visit the official site:
👉 buildermethods.com/design-os
For official support, training, and community as you use Design OS—for yourself or with your team, consider joining Builder Methods Pro. You'll get access to Brian Casel (the creator) for questions, a community of builders using Design OS, plus all Builder Methods workshops and training on AI-first development.
Design OS is created and maintained by Brian Casel at Builder Methods.
- Original repo: github.com/caselabs/design-os
- Website: buildermethods.com/design-os
- Builder Briefing newsletter: buildermethods.com
- YouTube: youtube.com/@briancasel
All props to Brian for creating Design OS. This template merely adapts it for GitHub Copilot usage.