Stitch Design Taste — Semantic Design System Skill
Overview
This skill generates DESIGN.md files optimized for Google Stitch screen generation. It translates the battle-tested anti-slop frontend engineering directives into Stitch's native semantic design language — descriptive, natural-language rules paired with precise values that Stitch's AI agent can interpret to produce premium, non-generic interfaces.
The generated DESIGN.md serves as the single source of truth for prompting Stitch to generate new screens that align with a curated, high-agency design language. Stitch interprets design through "Visual Descriptions" supported by specific color values, typography specs, and component behaviors.
Default baseline: Variance 8, Motion 6, Density 4. Adapt dynamically based on user's vibe description.
2. Map the Color Palette
For each color provide: Descriptive Name + Hex Code + Functional Role.
Mandatory constraints:
Maximum 1 accent color. Saturation below 80%
The "AI Purple/Blue Neon" aesthetic is strictly BANNED — no purple button glows, no neon gradients
Use absolute neutral bases (Zinc/Slate) with high-contrast singular accents
Stick to one palette for the entire output — no warm/cool gray fluctuation
Never use pure black (#000000) — use Off-Black, Zinc-950, or Charcoal
3. Establish Typography Rules
Display/Headlines: Track-tight, controlled scale. Not screaming. Hierarchy through weight and color, not just massive size
Body: Relaxed leading, max 65 characters per line
Font Selection:Inter is BANNED for premium/creative contexts. Force unique character: Geist, Outfit, Cabinet Grotesk, or Satoshi
Serif Ban: Generic serif fonts (Times New Roman, Georgia, Garamond, Palatino) are BANNED. If serif is needed for editorial/creative contexts, use only distinctive modern serifs: Fraunces, Gambarino, Editorial New, or Instrument Serif. Serif is always BANNED in dashboards or software UIs
Dashboard Constraint: Use Sans-Serif pairings exclusively (Geist + Geist Mono or Satoshi + JetBrains Mono)
High-Density Override: When density exceeds 7, all numbers must use Monospace
4. Define the Hero Section
The Hero is the first impression and must be creative, striking, and never generic:
Inline Image Typography: Embed small, contextual photos or visuals directly between words or letters in the headline. Images sit inline at type-height, rounded, acting as visual punctuation. This is the signature creative technique
No Overlapping: Text must never overlap images or other text. Every element occupies its own clean spatial zone
No Filler Text: "Scroll to explore", "Swipe down", scroll arrow icons, bouncing chevrons are BANNED. The content should pull users in naturally
Asymmetric Structure: Centered Hero layouts BANNED when variance exceeds 4
CTA Restraint: Maximum one primary CTA. No secondary "Learn more" links
5. Describe Component Stylings
For each component type, describe shape, color, shadow depth, and interaction behavior:
Buttons: Tactile push feedback on active state. No neon outer glows. No custom mouse cursors
Cards: Use ONLY when elevation communicates hierarchy. Tint shadows to background hue. For high-density layouts, replace cards with border-top dividers or negative space
Inputs/Forms: Label above input, helper text optional, error text below. Standard gap spacing