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Design DNA

A 3-phase workflow for extracting, structuring, and applying design identity across three dimensions:

1. Design System — measurable tokens (color, typography, spacing, layout, shape, elevation, motion, components)
2. Design Style — qualitative perception (mood, visual language, composition, imagery, interaction feel, brand voice)
3. Visual Effects — special rendering (Canvas, WebGL, 3D, particles, shaders, scroll effects, cursor effects, SVG animations, glassmorphism, etc.)

Phases

Phase 1: Structure — Output the Schema

When the user asks for the structural dimensions or schema:

1. Read references/schema.md
2. Present the full schema with field descriptions
3. Explain the three dimensions and their roles:
   • design_system : What you can measure — exact hex values, pixel sizes, rem scales
   • design_style : What you can feel — mood, personality, composition strategy
   • visual_effects : What you can see but can't express in CSS alone — WebGL scenes, particle systems, shader distortions, scroll-driven animations
4. Ask if the user wants to customize or extend any dimensions

Phase 2: Analyze — Extract DNA from References

When the user provides images, screenshots, or links representing a target design style:

1. Read references/schema.md for the full field list
2. For each reference provided:
   • If image/screenshot: analyze visual properties directly
   • If URL: fetch and analyze the page's visual design
3. For every field in the schema, extract or infer a value from the references
4. When multiple references conflict, note the dominant pattern and mention variants
5. Output a complete Design DNA JSON — every field populated, no empty strings
6. After output, ask: "Want to adjust any values before using this for generation?"

Analysis approach per dimension:

Dimension 1: design_system

• color : Extract dominant palette via visual sampling. Primary by area dominance, secondary by supporting role, accent by CTA usage. Map neutral scale from lightest background to darkest text.
• typography : Identify font families by visual characteristics (geometric, humanist, serif class). Estimate scale ratios from heading/body size relationships.
• spacing : Assess density by element proximity. Measure rhythm by section gap consistency.
• layout : Identify grid by content alignment patterns. Note max-width, column count, asymmetry.
• shape : Measure border-radius by comparing to element height. Note border and divider presence.
• elevation : Classify shadow softness, spread, and layering approach.
• motion : If observable (video/interactive), note easing curves and duration feel.

Dimension 2: design_style

• Synthesize holistic impressions — mood, personality, composition strategy
• Compare against genre archetypes (SaaS, editorial, brutalist, etc.)
• Note ornamentation level and whitespace philosophy

Dimension 3: visual_effects

• From code : Scan for <canvas>, WebGL contexts, Three.js/Pixi.js imports, GSAP/Lottie usage, custom shaders, IntersectionObserver scroll triggers, SVG <animate> elements
• From screenshots : Describe visible effects that go beyond standard CSS — glowing particles, 3D object renders, noise textures, gradient animations, parallax depth, cursor trails, text distortions, glassmorphic surfaces. Note these in composite_notes when exact implementation can't be determined.
• From video/interaction demos : Note scroll behaviors, hover distortions, transition choreography, loading sequences
• Set enabled: false for any effect category not present in the reference
• Rate overview.effect_intensity and overview.performance_tier based on what's observed

Phase 3: Generate — Apply DNA to Content

When the user provides DNA JSON + content to design:

1. Read references/generation-guide.md
2. Parse the DNA JSON and extract all tokens across three dimensions
3. Build CSS custom properties from design_system values
4. Apply design_style qualitative fields to guide subjective design decisions
5. When the design needs assets or source materials, fetch them from the original source whenever possible. If the user provided a URL, retrieve the real asset from that URL instead of recreating, approximating, or substituting it.
6. Implement visual_effects using appropriate technologies:
   • Lightweight effects → CSS animations, SVG, vanilla JS
   • Medium effects → Canvas 2D, GSAP, Lottie
   • Heavy effects → Three.js, custom GLSL shaders, Pixi.js
7. Generate the design output (default: self-contained HTML with inline CSS/JS)
8. Run quality checks from the generation guide

If the user provides only content without DNA JSON , ask whether to:

• Analyze a reference first (go to Phase 2)
• Use a described style (extract DNA from description, then generate)

Phase Combinations

Users may invoke any combination:

• Phase 1 only : "Show me the design structure/schema"
• Phase 2 only : "Analyze this design" (with images/links)
• Phase 2 → 3 : "Analyze this design and build me a landing page in the same style"
• Phase 1 → 2 → 3 : Full pipeline
• Phase 3 only : User already has DNA JSON

Detect which phase(s) are needed from context and execute accordingly.

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zanwei/design-dna

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