feat: integrate Exa MCP for design trend research in UI workflow

Enhance UI Design Workflow with intelligent design trend research capabilities:
- Add design trend analysis in extract phase using Exa MCP API
- Integrate layout strategy planning with current UI/UX patterns (2024-2025)
- Update consolidation command to include dynamic layout generation
- Add ui-instantiate-prototypes.sh script for prototype management
- Simplify path structure by removing nested .design directories
- Update workflow architecture documentation

This integration enables context-aware design decisions based on modern design trends
and improves the quality of generated UI prototypes.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
catlog22
2025-10-09 18:04:37 +08:00
parent c7e2d6f82f
commit 20c75c0060
8 changed files with 1466 additions and 480 deletions

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#!/bin/bash
# UI Prototype Instantiation Script with Preview Generation (v3.0 - Auto-detect)
# Purpose: Generate S × L × P final prototypes from templates + interactive preview files
# Usage:
# Simple: ui-instantiate-prototypes.sh <prototypes_dir>
# Full: ui-instantiate-prototypes.sh <base_path> <pages> <style_variants> <layout_variants> [options]
# Use safer error handling
set -o pipefail
# ============================================================================
# Helper Functions
# ============================================================================
log_info() {
echo "$1"
}
log_success() {
echo "$1"
}
log_error() {
echo "$1"
}
log_warning() {
echo "⚠️ $1"
}
# Auto-detect pages from templates directory
auto_detect_pages() {
local templates_dir="$1/_templates"
if [ ! -d "$templates_dir" ]; then
log_error "Templates directory not found: $templates_dir"
return 1
fi
# Find unique page names from template files (e.g., login-layout-1.html -> login)
local pages=$(find "$templates_dir" -name "*-layout-*.html" -type f | \
sed 's|.*/||' | \
sed 's|-layout-[0-9]*\.html||' | \
sort -u | \
tr '\n' ',' | \
sed 's/,$//')
echo "$pages"
}
# Auto-detect style variants count
auto_detect_style_variants() {
local base_path="$1"
local style_dir="$base_path/../style-consolidation"
if [ ! -d "$style_dir" ]; then
log_warning "Style consolidation directory not found: $style_dir"
echo "3" # Default
return
fi
# Count style-* directories
local count=$(find "$style_dir" -maxdepth 1 -type d -name "style-*" | wc -l)
if [ "$count" -eq 0 ]; then
echo "3" # Default
else
echo "$count"
fi
}
# Auto-detect layout variants count
auto_detect_layout_variants() {
local templates_dir="$1/_templates"
if [ ! -d "$templates_dir" ]; then
echo "3" # Default
return
fi
# Find the first page and count its layouts
local first_page=$(find "$templates_dir" -name "*-layout-1.html" -type f | head -1 | sed 's|.*/||' | sed 's|-layout-1\.html||')
if [ -z "$first_page" ]; then
echo "3" # Default
return
fi
# Count layout files for this page
local count=$(find "$templates_dir" -name "${first_page}-layout-*.html" -type f | wc -l)
if [ "$count" -eq 0 ]; then
echo "3" # Default
else
echo "$count"
fi
}
# ============================================================================
# Parse Arguments
# ============================================================================
show_usage() {
cat <<'EOF'
Usage:
Simple (auto-detect): ui-instantiate-prototypes.sh <prototypes_dir> [options]
Full: ui-instantiate-prototypes.sh <base_path> <pages> <style_variants> <layout_variants> [options]
Simple Mode (Recommended):
prototypes_dir Path to prototypes directory (auto-detects everything)
Full Mode:
base_path Base path to prototypes directory
pages Comma-separated list of pages/components
style_variants Number of style variants (1-5)
layout_variants Number of layout variants (1-5)
Options:
--run-id <id> Run ID (default: auto-generated)
--session-id <id> Session ID (default: standalone)
--mode <page|component> Exploration mode (default: page)
--template <path> Path to compare.html template (default: ~/.claude/workflows/_template-compare-matrix.html)
--no-preview Skip preview file generation
--help Show this help message
Examples:
# Simple usage (auto-detect everything)
ui-instantiate-prototypes.sh .design/prototypes
# With options
ui-instantiate-prototypes.sh .design/prototypes --session-id WFS-auth
# Full manual mode
ui-instantiate-prototypes.sh .design/prototypes "login,dashboard" 3 3 --session-id WFS-auth
EOF
}
# Default values
BASE_PATH=""
PAGES=""
STYLE_VARIANTS=""
LAYOUT_VARIANTS=""
RUN_ID="run-$(date +%Y%m%d-%H%M%S)"
SESSION_ID="standalone"
MODE="page"
TEMPLATE_PATH="$HOME/.claude/workflows/_template-compare-matrix.html"
GENERATE_PREVIEW=true
AUTO_DETECT=false
# Parse arguments
if [ $# -lt 1 ]; then
log_error "Missing required arguments"
show_usage
exit 1
fi
# Check if using simple mode (only 1 positional arg before options)
if [ $# -eq 1 ] || [[ "$2" == --* ]]; then
# Simple mode - auto-detect
AUTO_DETECT=true
BASE_PATH="$1"
shift 1
else
# Full mode - manual parameters
if [ $# -lt 4 ]; then
log_error "Full mode requires 4 positional arguments"
show_usage
exit 1
fi
BASE_PATH="$1"
PAGES="$2"
STYLE_VARIANTS="$3"
LAYOUT_VARIANTS="$4"
shift 4
fi
# Parse optional arguments
while [[ $# -gt 0 ]]; do
case $1 in
--run-id)
RUN_ID="$2"
shift 2
;;
--session-id)
SESSION_ID="$2"
shift 2
;;
--mode)
MODE="$2"
shift 2
;;
--template)
TEMPLATE_PATH="$2"
shift 2
;;
--no-preview)
GENERATE_PREVIEW=false
shift
;;
--help)
show_usage
exit 0
;;
*)
log_error "Unknown option: $1"
show_usage
exit 1
;;
esac
done
# ============================================================================
# Auto-detection (if enabled)
# ============================================================================
if [ "$AUTO_DETECT" = true ]; then
log_info "🔍 Auto-detecting configuration from directory..."
# Detect pages
PAGES=$(auto_detect_pages "$BASE_PATH")
if [ -z "$PAGES" ]; then
log_error "Could not auto-detect pages from templates"
exit 1
fi
log_info " Pages: $PAGES"
# Detect style variants
STYLE_VARIANTS=$(auto_detect_style_variants "$BASE_PATH")
log_info " Style variants: $STYLE_VARIANTS"
# Detect layout variants
LAYOUT_VARIANTS=$(auto_detect_layout_variants "$BASE_PATH")
log_info " Layout variants: $LAYOUT_VARIANTS"
echo ""
fi
# ============================================================================
# Validation
# ============================================================================
# Validate base path
if [ ! -d "$BASE_PATH" ]; then
log_error "Base path not found: $BASE_PATH"
exit 1
fi
# Validate style and layout variants
if [ "$STYLE_VARIANTS" -lt 1 ] || [ "$STYLE_VARIANTS" -gt 5 ]; then
log_error "Style variants must be between 1 and 5 (got: $STYLE_VARIANTS)"
exit 1
fi
if [ "$LAYOUT_VARIANTS" -lt 1 ] || [ "$LAYOUT_VARIANTS" -gt 5 ]; then
log_error "Layout variants must be between 1 and 5 (got: $LAYOUT_VARIANTS)"
exit 1
fi
# Parse pages into array
IFS=',' read -ra PAGE_ARRAY <<< "$PAGES"
if [ ${#PAGE_ARRAY[@]} -eq 0 ]; then
log_error "No pages found"
exit 1
fi
# ============================================================================
# Header Output
# ============================================================================
echo "========================================="
echo "UI Prototype Instantiation & Preview"
if [ "$AUTO_DETECT" = true ]; then
echo "(Auto-detected configuration)"
fi
echo "========================================="
echo "Base Path: $BASE_PATH"
echo "Mode: $MODE"
echo "Pages/Components: $PAGES"
echo "Style Variants: $STYLE_VARIANTS"
echo "Layout Variants: $LAYOUT_VARIANTS"
echo "Run ID: $RUN_ID"
echo "Session ID: $SESSION_ID"
echo "========================================="
echo ""
# Change to base path
cd "$BASE_PATH" || exit 1
# ============================================================================
# Phase 1: Instantiate Prototypes
# ============================================================================
log_info "🚀 Phase 1: Instantiating prototypes from templates..."
echo ""
total_generated=0
total_failed=0
for page in "${PAGE_ARRAY[@]}"; do
# Trim whitespace
page=$(echo "$page" | xargs)
log_info "Processing page/component: $page"
for s in $(seq 1 "$STYLE_VARIANTS"); do
for l in $(seq 1 "$LAYOUT_VARIANTS"); do
# Define file paths
TEMPLATE_HTML="_templates/${page}-layout-${l}.html"
STRUCTURAL_CSS="_templates/${page}-layout-${l}.css"
TOKEN_CSS="../style-consolidation/style-${s}/tokens.css"
OUTPUT_HTML="${page}-style-${s}-layout-${l}.html"
# Copy template and replace placeholders
if [ -f "$TEMPLATE_HTML" ]; then
cp "$TEMPLATE_HTML" "$OUTPUT_HTML" || {
log_error "Failed to copy template: $TEMPLATE_HTML"
((total_failed++))
continue
}
# Replace CSS placeholders (Windows-compatible sed syntax)
sed -i "s|{{STRUCTURAL_CSS}}|${STRUCTURAL_CSS}|g" "$OUTPUT_HTML" || true
sed -i "s|{{TOKEN_CSS}}|${TOKEN_CSS}|g" "$OUTPUT_HTML" || true
log_success "Created: $OUTPUT_HTML"
((total_generated++))
# Create implementation notes (simplified)
NOTES_FILE="${page}-style-${s}-layout-${l}-notes.md"
# Generate notes with simple heredoc
cat > "$NOTES_FILE" <<NOTESEOF
# Implementation Notes: ${page}-style-${s}-layout-${l}
## Generation Details
- **Template**: ${TEMPLATE_HTML}
- **Structural CSS**: ${STRUCTURAL_CSS}
- **Style Tokens**: ${TOKEN_CSS}
- **Layout Strategy**: Layout ${l}
- **Style Variant**: Style ${s}
- **Mode**: ${MODE}
## Template Reuse
This prototype was generated from a shared layout template to ensure consistency
across all style variants. The HTML structure is identical for all ${page}-layout-${l}
prototypes, with only the design tokens (colors, fonts, spacing) varying.
## Design System Reference
Refer to \`../style-consolidation/style-${s}/style-guide.md\` for:
- Design philosophy
- Token usage guidelines
- Component patterns
- Accessibility requirements
## Customization
To modify this prototype:
1. Edit the layout template: \`${TEMPLATE_HTML}\` (affects all styles)
2. Edit the structural CSS: \`${STRUCTURAL_CSS}\` (affects all styles)
3. Edit design tokens: \`${TOKEN_CSS}\` (affects only this style variant)
## Run Information
- **Run ID**: ${RUN_ID}
- **Session ID**: ${SESSION_ID}
- **Generated**: $(date -u +%Y-%m-%dT%H:%M:%SZ 2>/dev/null || date -u +%Y-%m-%d)
NOTESEOF
else
log_error "Template not found: $TEMPLATE_HTML"
((total_failed++))
fi
done
done
done
echo ""
log_success "Phase 1 complete: Generated ${total_generated} prototypes"
if [ $total_failed -gt 0 ]; then
log_warning "Failed: ${total_failed} prototypes"
fi
echo ""
# ============================================================================
# Phase 2: Generate Preview Files (if enabled)
# ============================================================================
if [ "$GENERATE_PREVIEW" = false ]; then
log_info "⏭️ Skipping preview generation (--no-preview flag)"
exit 0
fi
log_info "🎨 Phase 2: Generating preview files..."
echo ""
# ============================================================================
# 2a. Generate compare.html from template
# ============================================================================
if [ ! -f "$TEMPLATE_PATH" ]; then
log_warning "Template not found: $TEMPLATE_PATH"
log_info " Skipping compare.html generation"
else
log_info "📄 Generating compare.html from template..."
# Convert page array to JSON format
PAGES_JSON="["
for i in "${!PAGE_ARRAY[@]}"; do
page=$(echo "${PAGE_ARRAY[$i]}" | xargs)
PAGES_JSON+="\"$page\""
if [ $i -lt $((${#PAGE_ARRAY[@]} - 1)) ]; then
PAGES_JSON+=", "
fi
done
PAGES_JSON+="]"
TIMESTAMP=$(date -u +%Y-%m-%dT%H:%M:%SZ 2>/dev/null || date -u +%Y-%m-%d)
# Read template and replace placeholders
cat "$TEMPLATE_PATH" | \
sed "s|{{run_id}}|${RUN_ID}|g" | \
sed "s|{{session_id}}|${SESSION_ID}|g" | \
sed "s|{{timestamp}}|${TIMESTAMP}|g" | \
sed "s|{{style_variants}}|${STYLE_VARIANTS}|g" | \
sed "s|{{layout_variants}}|${LAYOUT_VARIANTS}|g" | \
sed "s|{{pages_json}}|${PAGES_JSON}|g" \
> compare.html
log_success "Generated: compare.html"
fi
# ============================================================================
# 2b. Generate index.html
# ============================================================================
log_info "📄 Generating index.html..."
# Calculate total prototypes
TOTAL_PROTOTYPES=$((STYLE_VARIANTS * LAYOUT_VARIANTS * ${#PAGE_ARRAY[@]}))
# Generate index.html with simple heredoc
cat > index.html <<'INDEXEOF'
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>UI Prototypes - __MODE__ Mode - __RUN_ID__</title>
<style>
body {
font-family: system-ui, -apple-system, sans-serif;
max-width: 900px;
margin: 2rem auto;
padding: 0 2rem;
background: #f9fafb;
}
.header {
background: white;
padding: 2rem;
border-radius: 0.75rem;
box-shadow: 0 1px 3px rgba(0,0,0,0.1);
margin-bottom: 2rem;
}
h1 {
color: #2563eb;
margin-bottom: 0.5rem;
font-size: 2rem;
}
.meta {
color: #6b7280;
font-size: 0.875rem;
margin-top: 0.5rem;
}
.info {
background: #f3f4f6;
padding: 1.5rem;
border-radius: 0.5rem;
margin: 1.5rem 0;
border-left: 4px solid #2563eb;
}
.cta {
display: inline-block;
background: #2563eb;
color: white;
padding: 1rem 2rem;
border-radius: 0.5rem;
text-decoration: none;
font-weight: 600;
margin: 1rem 0;
transition: background 0.2s;
}
.cta:hover {
background: #1d4ed8;
}
.stats {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
gap: 1rem;
margin: 1.5rem 0;
}
.stat {
background: white;
border: 1px solid #e5e7eb;
padding: 1.5rem;
border-radius: 0.5rem;
text-align: center;
box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.stat-value {
font-size: 2.5rem;
font-weight: bold;
color: #2563eb;
margin-bottom: 0.25rem;
}
.stat-label {
color: #6b7280;
font-size: 0.875rem;
}
.section {
background: white;
padding: 2rem;
border-radius: 0.75rem;
margin-bottom: 2rem;
box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
h2 {
color: #1f2937;
margin-bottom: 1rem;
font-size: 1.5rem;
}
ul {
line-height: 1.8;
color: #374151;
}
.pages-list {
list-style: none;
padding: 0;
}
.pages-list li {
background: #f9fafb;
padding: 0.75rem 1rem;
margin: 0.5rem 0;
border-radius: 0.375rem;
border-left: 3px solid #2563eb;
}
.badge {
display: inline-block;
background: #dbeafe;
color: #1e40af;
padding: 0.25rem 0.75rem;
border-radius: 0.25rem;
font-size: 0.75rem;
font-weight: 600;
margin-left: 0.5rem;
}
</style>
</head>
<body>
<div class="header">
<h1>🎨 UI Prototype __MODE__ Mode</h1>
<div class="meta">
<strong>Run ID:</strong> __RUN_ID__ |
<strong>Session:</strong> __SESSION_ID__ |
<strong>Generated:</strong> __TIMESTAMP__
</div>
</div>
<div class="info">
<p><strong>Matrix Configuration:</strong> __STYLE_VARIANTS__ styles × __LAYOUT_VARIANTS__ layouts × __PAGE_COUNT__ __MODE__s</p>
<p><strong>Total Prototypes:</strong> __TOTAL_PROTOTYPES__ interactive HTML files</p>
</div>
<a href="compare.html" class="cta">🔍 Open Interactive Matrix Comparison →</a>
<div class="stats">
<div class="stat">
<div class="stat-value">__STYLE_VARIANTS__</div>
<div class="stat-label">Style Variants</div>
</div>
<div class="stat">
<div class="stat-value">__LAYOUT_VARIANTS__</div>
<div class="stat-label">Layout Options</div>
</div>
<div class="stat">
<div class="stat-value">__PAGE_COUNT__</div>
<div class="stat-label">__MODE__s</div>
</div>
<div class="stat">
<div class="stat-value">__TOTAL_PROTOTYPES__</div>
<div class="stat-label">Total Prototypes</div>
</div>
</div>
<div class="section">
<h2>🌟 Features</h2>
<ul>
<li><strong>Interactive Matrix View:</strong> __STYLE_VARIANTS__×__LAYOUT_VARIANTS__ grid with synchronized scrolling</li>
<li><strong>Flexible Zoom:</strong> 25%, 50%, 75%, 100% viewport scaling</li>
<li><strong>Fullscreen Mode:</strong> Detailed view for individual prototypes</li>
<li><strong>Selection System:</strong> Mark favorites with export to JSON</li>
<li><strong>__MODE__ Switcher:</strong> Compare different __MODE__s side-by-side</li>
<li><strong>Persistent State:</strong> Selections saved in localStorage</li>
</ul>
</div>
<div class="section">
<h2>📄 Generated __MODE__s</h2>
<ul class="pages-list">
__PAGES_LIST__
</ul>
</div>
<div class="section">
<h2>📚 Next Steps</h2>
<ol>
<li>Open <code>compare.html</code> to explore all variants in matrix view</li>
<li>Use zoom and sync scroll controls to compare details</li>
<li>Select your preferred style×layout combinations</li>
<li>Export selections as JSON for implementation planning</li>
<li>Review implementation notes in <code>*-notes.md</code> files</li>
</ol>
</div>
</body>
</html>
INDEXEOF
# Build pages list HTML
PAGES_LIST_HTML=""
for page in "${PAGE_ARRAY[@]}"; do
page=$(echo "$page" | xargs)
VARIANT_COUNT=$((STYLE_VARIANTS * LAYOUT_VARIANTS))
PAGES_LIST_HTML+=" <li>\n"
PAGES_LIST_HTML+=" <strong>${page}</strong>\n"
PAGES_LIST_HTML+=" <span class=\"badge\">${STYLE_VARIANTS}×${LAYOUT_VARIANTS} = ${VARIANT_COUNT} variants</span>\n"
PAGES_LIST_HTML+=" </li>\n"
done
# Replace all placeholders in index.html
MODE_UPPER=$(echo "$MODE" | awk '{print toupper(substr($0,1,1)) tolower(substr($0,2))}')
sed -i "s|__RUN_ID__|${RUN_ID}|g" index.html
sed -i "s|__SESSION_ID__|${SESSION_ID}|g" index.html
sed -i "s|__TIMESTAMP__|${TIMESTAMP}|g" index.html
sed -i "s|__MODE__|${MODE_UPPER}|g" index.html
sed -i "s|__STYLE_VARIANTS__|${STYLE_VARIANTS}|g" index.html
sed -i "s|__LAYOUT_VARIANTS__|${LAYOUT_VARIANTS}|g" index.html
sed -i "s|__PAGE_COUNT__|${#PAGE_ARRAY[@]}|g" index.html
sed -i "s|__TOTAL_PROTOTYPES__|${TOTAL_PROTOTYPES}|g" index.html
sed -i "s|__PAGES_LIST__|${PAGES_LIST_HTML}|g" index.html
log_success "Generated: index.html"
# ============================================================================
# 2c. Generate PREVIEW.md
# ============================================================================
log_info "📄 Generating PREVIEW.md..."
cat > PREVIEW.md <<PREVIEWEOF
# UI Prototype Preview Guide
## Quick Start
1. Open \`index.html\` for overview and navigation
2. Open \`compare.html\` for interactive matrix comparison
3. Use browser developer tools to inspect responsive behavior
## Configuration
- **Exploration Mode:** ${MODE_UPPER}
- **Run ID:** ${RUN_ID}
- **Session ID:** ${SESSION_ID}
- **Style Variants:** ${STYLE_VARIANTS}
- **Layout Options:** ${LAYOUT_VARIANTS}
- **${MODE_UPPER}s:** ${PAGES}
- **Total Prototypes:** ${TOTAL_PROTOTYPES}
- **Generated:** ${TIMESTAMP}
## File Naming Convention
\`\`\`
{${MODE}}-style-{s}-layout-{l}.html
\`\`\`
**Example:** \`dashboard-style-1-layout-2.html\`
- ${MODE_UPPER}: dashboard
- Style: Design system 1
- Layout: Layout variant 2
## Interactive Features (compare.html)
### Matrix View
- **Grid Layout:** ${STYLE_VARIANTS}×${LAYOUT_VARIANTS} table with all prototypes visible
- **Synchronized Scroll:** All iframes scroll together (toggle with button)
- **Zoom Controls:** Adjust viewport scale (25%, 50%, 75%, 100%)
- **${MODE_UPPER} Selector:** Switch between different ${MODE}s instantly
### Prototype Actions
- **⭐ Selection:** Click star icon to mark favorites
- **⛶ Fullscreen:** View prototype in fullscreen overlay
- **↗ New Tab:** Open prototype in dedicated browser tab
### Selection Export
1. Select preferred prototypes using star icons
2. Click "Export Selection" button
3. Downloads JSON file: \`selection-${RUN_ID}.json\`
4. Use exported file for implementation planning
## Design System References
Each prototype references a specific style design system:
PREVIEWEOF
# Add style references
for s in $(seq 1 "$STYLE_VARIANTS"); do
cat >> PREVIEW.md <<STYLEEOF
### Style ${s}
- **Tokens:** \`../style-consolidation/style-${s}/design-tokens.json\`
- **CSS Variables:** \`../style-consolidation/style-${s}/tokens.css\`
- **Style Guide:** \`../style-consolidation/style-${s}/style-guide.md\`
STYLEEOF
done
cat >> PREVIEW.md <<'FOOTEREOF'
## Responsive Testing
All prototypes are mobile-first responsive. Test at these breakpoints:
- **Mobile:** 375px - 767px
- **Tablet:** 768px - 1023px
- **Desktop:** 1024px+
Use browser DevTools responsive mode for testing.
## Accessibility Features
- Semantic HTML5 structure
- ARIA attributes for screen readers
- Keyboard navigation support
- Proper heading hierarchy
- Focus indicators
## Next Steps
1. **Review:** Open `compare.html` and explore all variants
2. **Select:** Mark preferred prototypes using star icons
3. **Export:** Download selection JSON for implementation
4. **Implement:** Use `/workflow:ui-design:update` to integrate selected designs
5. **Plan:** Run `/workflow:plan` to generate implementation tasks
---
**Generated by:** `ui-instantiate-prototypes.sh`
**Version:** 3.0 (auto-detect mode)
FOOTEREOF
log_success "Generated: PREVIEW.md"
# ============================================================================
# Completion Summary
# ============================================================================
echo ""
echo "========================================="
echo "✅ Generation Complete!"
echo "========================================="
echo ""
echo "📊 Summary:"
echo " Prototypes: ${total_generated} generated"
if [ $total_failed -gt 0 ]; then
echo " Failed: ${total_failed}"
fi
echo " Preview Files: compare.html, index.html, PREVIEW.md"
echo " Matrix: ${STYLE_VARIANTS}×${LAYOUT_VARIANTS} (${#PAGE_ARRAY[@]} ${MODE}s)"
echo " Total Files: ${TOTAL_PROTOTYPES} prototypes + preview files"
echo ""
echo "🌐 Next Steps:"
echo " 1. Open: ${BASE_PATH}/index.html"
echo " 2. Explore: ${BASE_PATH}/compare.html"
echo " 3. Review: ${BASE_PATH}/PREVIEW.md"
echo ""
echo "Performance: Template-based approach with ${STYLE_VARIANTS}× speedup"
echo "========================================="