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.

Prerequisites

• Access to Google Stitch via labs.google.com/stitch
• Optionally: Stitch MCP Server for programmatic integration with Cursor, Antigravity, or Gemini CLI

The Goal

Generate a DESIGN.md file that encodes:

1. Visual atmosphere — the mood, density, and design philosophy
2. Color calibration — neutrals, accents, and banned patterns with hex codes
3. Typographic architecture — font stacks, scale hierarchy, and anti-patterns
4. Component behaviors — buttons, cards, inputs with interaction states
5. Layout principles — grid systems, spacing philosophy, responsive strategy
6. Motion philosophy — animation engine specs, spring physics, perpetual micro-interactions
7. Anti-patterns — explicit list of banned AI design clichés

Analysis & Synthesis Instructions

1. Define the Atmosphere

Evaluate the target project's intent. Use evocative adjectives from the taste spectrum:

• Density: "Art Gallery Airy" (1–3) → "Daily App Balanced" (4–7) → "Cockpit Dense" (8–10)
• Variance: "Predictable Symmetric" (1–3) → "Offset Asymmetric" (4–7) → "Artsy Chaotic" (8–10)
• Motion: "Static Restrained" (1–3) → "Fluid CSS" (4–7) → "Cinematic Choreography" (8–10)

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

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