How to Use DESIGN.md with Cursor
The problem with Cursor and design context
Engineers using Cursor experience a familiar friction loop. You open a new project, prompt the AI to generate a navigation bar, and wait. The output functions perfectly, but it invents a random shade of blue, uses the wrong font, and ignores your spacing scale. You spend the next ten minutes correcting the CSS.
Pasted screenshots fail because vision models estimate hex codes rather than pulling exact variables. System prompts describing your brand guidelines don't survive the next session reset without tedious repetition. The AI lacks a persistent, structured memory of your visual identity. To fully understand why the current ecosystem lacks this memory, read our guide on what DESIGN.md is.
What you need before you start
To fix this workflow, you need three things.
First, a working installation of Cursor. Second, a repository where you intend to enforce consistent UI generation. Finally, you need a DESIGN.md file. If you don't have one, you can extract one from any live website in about three minutes using our pipeline, or you can write your own manually following the specification.
Step 1 — Generate or download your DESIGN.md
If you're starting from scratch, automated extraction is the fastest path.
Navigate to designmd.run, paste the URL of your live site or a reference site, and let the extraction pipeline run. The system parses the stylesheets, analyzes the tokens, and provides a linted file. Download the resulting document. If you prefer manual creation, you can write the YAML frontmatter and component blocks yourself. For more insights on how these tokens are structured specifically for your IDE, check out our guide on design tokens for Cursor.
Step 2 — Drop the file at the repo root
Once you have the file, place it directly at the root of your repository.
The location matters. Cursor actively indexes the root directory to establish workspace context. By placing the file alongside your package.json or README.md, you ensure the agent reads the token definitions upon initialization. Ensure the filename is exactly DESIGN.md in all caps. This convention signals to the AI that the file contains canonical visual rules, differentiating it from standard documentation.
Step 3 — Reference DESIGN.md in your prompts
With the file in place, you can adjust your prompting strategy.
You no longer need to define colors in the chat. A successful prompt looks like this: "Build a hero section. Use the primary button and spacing scale defined in DESIGN.md." Because Cursor indexes the file, it will seamlessly pull the exact hex codes and padding values.
Prompts fail when they're overly prescriptive and conflict with the file. For example, if you say, "Make the button red," but your file defines the primary color as blue, the AI must resolve the conflict, often leading to hallucinations. Rely on the file as the single source of truth. To understand the broader impact of this workflow, read about the hidden cost of re-explaining design.
Step 4 — Verify the output
After Cursor generates the component, perform a quick verification.
The first generated UI element is the benchmark. Check the hex codes in the generated CSS or Tailwind classes. If the file specifies {colors.primary} as #1A56DB, the generated code should match exactly. If you utilized our extraction tool, the confidence score provided during the download phase indicates how reliable the tokens are. High-confidence extractions rarely require manual corrections in the final output.
Tips and gotchas
Managing context window limits is important. While DESIGN.md is designed to be lightweight, avoid stuffing the file with hundreds of redundant UI states. Stick to the core components and let the AI extrapolate.
If your design system relies on complex theming, you may eventually need to split tokens out of the frontmatter into dedicated JSON files, though this is only necessary for massive enterprise applications. When your product undergoes a redesign, simply run a new extraction job, replace the file at the root, and reload your Cursor window to update the AI's visual memory instantly. Features like a GitHub Action to automate this refresh cycle are currently on the V1+ roadmap.
Frequently asked questions
Does the file have to be named DESIGN.md?
Yes, using the exact all-caps filename ensures that Cursor and other AI agents immediately recognize it as the canonical design specification file.
Do I need to mention the file in every prompt?
Not necessarily, as Cursor indexes root files, but explicitly stating "use DESIGN.md" in your initial prompt guarantees the agent anchors its output to your specific tokens.
Will this work with my Tailwind configuration?
Yes. Cursor will read your DESIGN.md to understand your design logic and will generate the appropriate Tailwind utility classes to match those tokens.
Get Started
Get your DESIGN.md file in about 3 minutes — no account required. Visit the designmd.run homepage to start your extraction.