Felix Haas avatar

Felix Haas

@felixhhaas

8/6/2025, 7:26:57 AM

Most designers are prompting AI wrong.

They ask for "modern UI" and get generic garbage.

I spent 100 hours testing prompts. Here's what actually works 🧵 https://t.co/H9ayQkkfRp
Lesson 1: Specificity beats creativity

Bad prompt: "Design a dashboard"

Good prompt: "SaaS analytics dashboard, dark theme, 3-column layout, card-based metrics, Tailwind CSS"

The AI needs constraints to be creative.
Lesson 2: Steal like an artist (literally)

Don't ask AI to "be creative."

Reference real products:
"Design like Linear's issue view but for customer support tickets"

AI understands patterns better than aesthetics.
Copy smart, then customize.
Lesson 3: Components > full pages

Building entire pages = overwhelming chaos.

Building components = controllable magic.

Start with: "Create a pricing card component"

Not: "Build me a pricing page"
Lesson 4: The buzzword hack

Generic words = generic results.

Specific buzzwords = sharp designs.

Instead of "modern": use "glassmorphism", "brutalist", "neubrutalism"

Instead of "clean": use "minimal", "Swiss design", "monospace"

Buzzwords are design shortcuts.
Lesson 5: Always include the tech stack

"React component with Tailwind CSS" hits different than just "component."

AI knows framework patterns.

It'll give you proper JSX, class names, and structure.

The more technical context, the better the output.
Lesson 6: Iterate in public (with AI)

Don't hide in private chats.

Build in Lovable. Share the process.

Real feedback > perfect prompts.

Ship ugly. Iterate fast.

Users care about function over form anyway.
Lesson 7: Mobile-first prompting

"Mobile-first responsive" isn't enough.

Be explicit:
"Mobile: single column, touch targets 44px minimum"
"Desktop: 3-column grid, hover states"

Design for thumbs first. Scale up second.
Lesson 8: The 80/20 prompt rule:

80% of results come from these 4 elements:

Component type
Visual style
Tech stack
Layout structure

Everything else is distraction.
Master the basics first.
Lesson 9: AI can't read your mind

"Make it better" = vague feedback.

"Increase contrast, larger text, more padding" = actionable.

Treat AI like a junior designer.
Be specific, patient. and iterative.
Lesson 10: Layer your prompts

Don't try to get perfect results in one shot.

First prompt: "Create a login form component"
Second prompt: "Add error states and loading animations"
Third prompt: "Make it mobile-responsive with proper spacing"

Build complexity step by step. AI works better with focused, layered requests than one-shot prompts.
The reality: AI isn't replacing designers.

It’s just exposing who can’t think in systems, structure, and intent.

RT this thread if you're ready to prompt like a pro.
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