If you have ever asked an AI to build you a UI and ended up with something that looks completely different every single time - different colors, different button styles, different spacing - you are not alone. This is probably the most common frustration in vibecoding right now.
The fix is surprisingly simple. You define your visual style once, convert it into a format the AI can read, and tell it to always reference that file. From that point on, every component it generates follows the same system.
The entire UI you are looking at right now on Tridify was built this way. One design system document, linked to Claude's memory, reused across every page and component.
The prompt
You do not need to set any of this up manually. Here is a guided prompt you can paste directly into Claude that walks you through the entire process. It asks about your preferences, generates the HTML, helps you iterate, converts it to markdown, and gives you the exact memory instruction to use at the end.
I want to build a personal design system that I can store in your memory so you always reuse it when creating UI. Guide me through the full process step by step. Ask questions in small focused groups, wait for my answers, and do not move to the next group or step until I have answered. Do not generate anything until all questions are complete.
RULES YOU MUST FOLLOW THROUGHOUT:
- Always ask questions using interactive clickable options when the interface supports it
- Never ask more than 4 questions per turn
- Never skip a question group - every group must be completed before moving on
- Use only CSS variables with rgba() values for all colors
- All UI must be fully responsive for mobile, tablet and desktop by default
- Default to CSS variables, not TailwindHow it works
The workflow has three stages. Each one builds on the last.
Stage 1 - Generate an HTML component library
Ask the AI to build a single HTML file containing all your core UI components - buttons, forms, navigation, cards, loaders, typography, and a color palette.
Open it in your browser. Tweak it. Iterate until the look and feel is exactly right.
This is the fun part. You are vibecoding your entire design language in one file, and you can see every change instantly.
Stage 2 - Convert it to markdown
Once the design is approved, convert the HTML into a structured .md file that documents all your design decisions - color values, spacing rules, component patterns, typography scale.
Why markdown? It is lightweight and extremely easy for an AI to parse precisely. No ambiguity, no guessing.
Stage 3 - Link it to your AI workflow
Store the .md file locally and link it into your AI's context. The AI reads it before building anything new and reuses what already exists instead of inventing something from scratch.
The key insight: you are not pasting the file contents into memory every time. You are linking the file so the AI always reads the latest version of your design system automatically.
Where the markdown file can live
The .md file is a plain document - how you use it depends entirely on your setup.
AI memory - Link it as a persistent memory instruction so every new conversation starts with your design system already loaded.
Project instructions - Add it as a project-level instruction file in tools like Claude Projects, so it applies to everything within that project.
System prompt - If you are building with the API, include it in your system prompt so every request is automatically design-aware.
Context file - Drop it into a repo or workspace folder and reference it manually when starting a new UI task. Useful for team workflows or when vibecoding with someone else.
Why this actually works
Most AI-generated UI looks inconsistent because the AI has no memory of what it built before. Every request starts from zero. By giving it a concrete reference document it can always read, you shift from hoping the output matches to knowing it will.
It also stays in your control. The .md file is yours - you can edit it, version it, share it, or rebuild it entirely whenever your design evolves. The AI is just a tool that reads and follows it.
Getting started
Copy the prompt above, paste it into Claude, and follow along. The whole process takes about 15 to 20 minutes. At the end you will have a design system that every future conversation automatically follows.
Once it is linked, you can stop thinking about visual consistency entirely and focus on building.