---
name: explore-auto
description: Interactive exploratory UI design workflow with style-centric batch generation, creates design variants from prompts/images with parallel execution and user selection
argument-hint: "[--prompt "<desc>"] [--images "<glob>"] [--targets "<list>"] [--target-type "page|component"] [--session <id>] [--style-variants <count>] [--layout-variants <count>] [--batch-plan]""
allowed-tools: SlashCommand(*), TodoWrite(*), Read(*), Bash(*), Glob(*), Write(*), Task(conceptual-planning-agent)
---

# UI Design Auto Workflow Command

## Overview & Execution Model

**Fully autonomous orchestrator**: Executes all design phases sequentially from style extraction to design integration, with optional batch planning.

**Unified Target System**: Generates `style_variants × layout_variants × targets` prototypes, where targets can be:
- **Pages** (full-page layouts): home, dashboard, settings, etc.
- **Components** (isolated UI elements): navbar, card, hero, form, etc.
- **Mixed**: Can combine both in a single workflow

**Autonomous Flow** (⚠️ CONTINUOUS EXECUTION - DO NOT STOP):
1. User triggers: `/workflow:ui-design:explore-auto [params]`
2. Phase 0c: Target confirmation → User confirms → **IMMEDIATELY triggers Phase 1**
3. Phase 1 (style-extract) → **Execute phase (blocks until finished)** → Auto-continues to Phase 2.3
4. Phase 2.3 (animation-extract, conditional):
   - **IF should_extract_animation**: Execute animation extraction → Auto-continues to Phase 2.5
   - **ELSE**: Skip (use code import) → Auto-continues to Phase 2.5
5. Phase 2.5 (layout-extract) → **Execute phase (blocks until finished)** → Auto-continues to Phase 3
6. **Phase 3 (ui-assembly)** → **Execute phase (blocks until finished)** → Auto-continues to Phase 4
7. Phase 4 (design-update) → **Execute phase (blocks until finished)** → Auto-continues to Phase 5 (if --batch-plan)
8. Phase 5 (batch-plan, optional) → Reports completion

**Phase Transition Mechanism**:
- **Phase 0c (User Interaction)**: User confirms targets → IMMEDIATELY triggers Phase 1
- **Phase 1-5 (Autonomous)**: `SlashCommand` is BLOCKING - execution pauses until the command finishes
- When each phase finishes executing: Automatically process output and execute next phase
- No additional user interaction after Phase 0c confirmation

**Auto-Continue Mechanism**: TodoWrite tracks phase status. When each phase finishes executing, you MUST immediately construct and execute the next phase command. No user intervention required. The workflow is NOT complete until reaching Phase 4 (or Phase 5 if --batch-plan).

**Target Type Detection**: Automatically inferred from prompt/targets, or explicitly set via `--target-type`.

## Core Rules

1. **Start Immediately**: TodoWrite initialization → Phase 1 execution
2. **No Preliminary Validation**: Sub-commands handle their own validation
3. **Parse & Pass**: Extract data from each output for next phase
4. **Default to All**: When selecting variants/prototypes, use ALL generated items
5. **Track Progress**: Update TodoWrite after each phase
6. **⚠️ CRITICAL: DO NOT STOP** - This is a continuous multi-phase workflow. Each SlashCommand execution blocks until finished, then you MUST immediately execute the next phase. Workflow is NOT complete until Phase 4 (or Phase 5 if --batch-plan).

## Parameter Requirements

**Optional Parameters** (all have smart defaults):
- `--targets "<list>"`: Comma-separated targets (pages/components) to generate (inferred from prompt/session if omitted)
- `--target-type "page|component|auto"`: Explicitly set target type (default: `auto` - intelligent detection)
- `--device-type "desktop|mobile|tablet|responsive|auto"`: Device type for layout optimization (default: `auto` - intelligent detection)
  - **Desktop**: 1920×1080px - Mouse-driven, spacious layouts
  - **Mobile**: 375×812px - Touch-friendly, compact layouts
  - **Tablet**: 768×1024px - Hybrid touch/mouse layouts
  - **Responsive**: 1920×1080px base with mobile-first breakpoints
- `--session <id>`: Workflow session ID (standalone mode if omitted)
- `--images "<glob>"`: Reference image paths (default: `design-refs/*`)
- `--prompt "<description>"`: Design style and target description
- `--style-variants <count>`: Style variants (default: inferred from prompt or 3, range: 1-5)
- `--layout-variants <count>`: Layout variants per style (default: inferred or 3, range: 1-5)
- `--batch-plan`: Auto-generate implementation tasks after design-update

**Legacy Parameters** (maintained for backward compatibility):
- `--pages "<list>"`: Alias for `--targets` with `--target-type page`
- `--components "<list>"`: Alias for `--targets` with `--target-type component`

**Input Rules**:
- Must provide at least one: `--images` or `--prompt` or `--targets`
- Multiple parameters can be combined for guided analysis
- If `--targets` not provided, intelligently inferred from prompt/session

**Supported Target Types**:
- **Pages** (full layouts): home, dashboard, settings, profile, login, etc.
- **Components** (UI elements):
  - Navigation: navbar, header, menu, breadcrumb, tabs, sidebar
  - Content: hero, card, list, table, grid, timeline
  - Input: form, search, filter, input-group
  - Feedback: modal, alert, toast, badge, progress
  - Media: gallery, carousel, video-player, image-card
  - Other: footer, pagination, dropdown, tooltip, avatar

**Intelligent Prompt Parsing**: Extracts variant counts from natural language:
- "Generate **3 style variants**" → `--style-variants 3`
- "**2 layout options**" → `--layout-variants 2`
- "Create **4 styles** with **2 layouts each**" → `--style-variants 4 --layout-variants 2`
- Explicit flags override prompt inference

## Execution Modes

**Matrix Mode** (style-centric):
- Generates `style_variants × layout_variants × targets` prototypes
- **Phase 1**: `style_variants` complete design systems (extract)
- **Phase 2**: Layout templates extraction (layout-extract)
- **Phase 3**: Style-centric batch generation (generate)
  - Sub-phase 1: `targets × layout_variants` target-specific layout plans
  - **Sub-phase 2**: `S` style-centric agents (each handles `L×T` combinations)
  - Sub-phase 3: `style_variants × layout_variants × targets` final prototypes
  - Performance: Efficient parallel execution with S agents
  - Quality: HTML structure adapts to design_attributes
  - Pages: Full-page layouts with complete structure
  - Components: Isolated elements with minimal wrapper

**Integrated vs. Standalone**:
- `--session` flag determines session integration or standalone execution

## 6-Phase Execution

### Phase 0a: Intelligent Path Detection & Source Selection
```bash
# Step 1: Detect if prompt/images contain existing file paths
code_files_detected = false
code_base_path = null
has_visual_input = false

IF --prompt:
    # Extract potential file paths from prompt
    potential_paths = extract_paths_from_text(--prompt)
    FOR path IN potential_paths:
        IF file_or_directory_exists(path):
            code_files_detected = true
            code_base_path = path
            BREAK

IF --images:
    # Check if images parameter points to existing files
    IF glob_matches_files(--images):
        has_visual_input = true

# Step 2: Determine design source strategy
design_source = "unknown"
IF code_files_detected AND has_visual_input:
    design_source = "hybrid"  # Both code and visual
ELSE IF code_files_detected:
    design_source = "code_only"  # Only code files
ELSE IF has_visual_input OR --prompt:
    design_source = "visual_only"  # Only visual/prompt
ELSE:
    ERROR: "No design source provided (code files, images, or prompt required)"
    EXIT 1

STORE: design_source, code_base_path, has_visual_input
```

### Phase 0a-2: Intelligent Prompt Parsing
```bash
# Parse variant counts from prompt or use explicit/default values
IF --prompt AND (NOT --style-variants OR NOT --layout-variants):
    style_variants = regex_extract(prompt, r"(\d+)\s*style") OR --style-variants OR 3
    layout_variants = regex_extract(prompt, r"(\d+)\s*layout") OR --layout-variants OR 3
ELSE:
    style_variants = --style-variants OR 3
    layout_variants = --layout-variants OR 3

VALIDATE: 1 <= style_variants <= 5, 1 <= layout_variants <= 5

# Interactive mode (always enabled)
interactive_mode = true  # Always use interactive mode
```

### Phase 0a-2: Device Type Inference
```bash
# Device type inference
device_type = "auto"

# Step 1: Explicit parameter (highest priority)
IF --device-type AND --device-type != "auto":
    device_type = --device-type
    device_source = "explicit"
ELSE:
    # Step 2: Prompt analysis
    IF --prompt:
        device_keywords = {
            "desktop": ["desktop", "web", "laptop", "widescreen", "large screen"],
            "mobile": ["mobile", "phone", "smartphone", "ios", "android"],
            "tablet": ["tablet", "ipad", "medium screen"],
            "responsive": ["responsive", "adaptive", "multi-device", "cross-platform"]
        }
        detected_device = detect_device_from_prompt(--prompt, device_keywords)
        IF detected_device:
            device_type = detected_device
            device_source = "prompt_inference"

    # Step 3: Target type inference
    IF device_type == "auto":
        # Components are typically desktop-first, pages can vary
        device_type = target_type == "component" ? "desktop" : "responsive"
        device_source = "target_type_inference"

STORE: device_type, device_source
```

**Device Type Presets**:
- **Desktop**: 1920×1080px - Mouse-driven, spacious layouts
- **Mobile**: 375×812px - Touch-friendly, compact layouts
- **Tablet**: 768×1024px - Hybrid touch/mouse layouts
- **Responsive**: 1920×1080px base with mobile-first breakpoints

**Detection Keywords**:
- Prompt contains "mobile", "phone", "smartphone" → mobile
- Prompt contains "tablet", "ipad" → tablet
- Prompt contains "desktop", "web", "laptop" → desktop
- Prompt contains "responsive", "adaptive" → responsive
- Otherwise: Inferred from target type (components→desktop, pages→responsive)

### Phase 0b: Run Initialization & Directory Setup
```bash
design_id = "design-run-$(date +%Y%m%d)-$RANDOM"
relative_base_path = --session ? ".workflow/WFS-{session}/${design_id}" : ".workflow/.design/${design_id}"

# Create directory and convert to absolute path
Bash(mkdir -p "${relative_base_path}/style-extraction")
Bash(mkdir -p "${relative_base_path}/prototypes")
base_path=$(cd "${relative_base_path}" && pwd)

Write({base_path}/.run-metadata.json): {
  "design_id": "${design_id}", "session_id": "${session_id}", "timestamp": "...",
  "workflow": "ui-design:auto",
  "architecture": "style-centric-batch-generation",
  "parameters": { "style_variants": ${style_variants}, "layout_variants": ${layout_variants},
                  "targets": "${inferred_target_list}", "target_type": "${target_type}",
                  "prompt": "${prompt_text}", "images": "${images_pattern}",
                  "device_type": "${device_type}", "device_source": "${device_source}" },
  "status": "in_progress",
  "performance_mode": "optimized"
}

# Initialize default flags for animation extraction logic
animation_complete = false  # Default: always extract animations unless code import proves complete
needs_visual_supplement = false  # Will be set to true in hybrid mode
skip_animation_extraction = false  # User preference for code import scenario
```

### Phase 0c: Unified Target Inference with Intelligent Type Detection
```bash
# Priority: --pages/--components (legacy) → --targets → --prompt analysis → synthesis → default
target_list = []; target_type = "auto"; target_source = "none"

# Step 1-2: Explicit parameters (legacy or unified)
IF --pages: target_list = split(--pages); target_type = "page"; target_source = "explicit_legacy"
ELSE IF --components: target_list = split(--components); target_type = "component"; target_source = "explicit_legacy"
ELSE IF --targets:
    target_list = split(--targets); target_source = "explicit"
    target_type = --target-type != "auto" ? --target-type : detect_target_type(target_list)

# Step 3: Prompt analysis (Claude internal analysis)
ELSE IF --prompt:
    analysis_result = analyze_prompt("{prompt_text}")  # Extract targets, types, purpose
    target_list = analysis_result.targets
    target_type = analysis_result.primary_type OR detect_target_type(target_list)
    target_source = "prompt_analysis"

# Step 4: Session synthesis
ELSE IF --session AND exists(role analysis documents):
    target_list = extract_targets_from_synthesis(); target_type = "page"; target_source = "synthesis"

# Step 5: Fallback
IF NOT target_list: target_list = ["home"]; target_type = "page"; target_source = "default"

# Validate and clean
validated_targets = [normalize(t) for t in target_list if is_valid(t)]
IF NOT validated_targets: validated_targets = ["home"]; target_type = "page"
IF --target-type != "auto": target_type = --target-type

# Interactive confirmation
DISPLAY_CONFIRMATION(target_type, target_source, validated_targets, device_type, device_source):
  "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
  "{emoji} {LABEL} CONFIRMATION (Style-Centric)"
  "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
  "Type: {target_type} | Source: {target_source}"
  "Targets ({count}): {', '.join(validated_targets)}"
  "Device: {device_type} | Source: {device_source}"
  "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
  "Performance: {style_variants} agent calls"
  "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
  "Modification Options:"
  "  • 'continue/yes/ok' - Proceed with current configuration"
  "  • 'targets: a,b,c' - Replace target list"
  "  • 'skip: x,y' - Remove specific targets"
  "  • 'add: z' - Add new targets"
  "  • 'type: page|component' - Change target type"
  "  • 'device: desktop|mobile|tablet|responsive' - Change device type"
  "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"

user_input = WAIT_FOR_USER_INPUT()

# Process user modifications
MATCH user_input:
  "continue|yes|ok" → proceed
  "targets: ..." → validated_targets = parse_new_list()
  "skip: ..." → validated_targets = remove_items()
  "add: ..." → validated_targets = add_items()
  "type: ..." → target_type = extract_type()
  "device: ..." → device_type = extract_device()
  default → proceed with current list

STORE: inferred_target_list, target_type, target_inference_source

# ⚠️ CRITICAL: User confirmation complete, IMMEDIATELY initialize TodoWrite and execute Phase 1
# This is the only user interaction point in the workflow
# After this point, all subsequent phases execute automatically without user intervention
```

**Helper Function: detect_target_type()**
```bash
detect_target_type(target_list):
    page_keywords = ["home", "dashboard", "settings", "profile", "login", "signup", "auth", ...]
    component_keywords = ["navbar", "header", "footer", "hero", "card", "button", "form", ...]

    page_matches = count_matches(target_list, page_keywords + ["page", "screen", "view"])
    component_matches = count_matches(target_list, component_keywords + ["component", "widget"])

    RETURN "component" IF component_matches > page_matches ELSE "page"
```

### Phase 0d: Code Import & Completeness Assessment (Conditional)
```bash
IF design_source IN ["code_only", "hybrid"]:
    REPORT: "🔍 Phase 0d: Code Import ({design_source})"
    command = "/workflow:ui-design:import-from-code --design-id \"{design_id}\" --source \"{code_base_path}\""

    TRY:
        SlashCommand(command)
    CATCH error:
        WARN: "⚠️ Code import failed: {error}"
        WARN: "Cleaning up incomplete import directories"
        Bash(rm -rf "{base_path}/style-extraction" "{base_path}/animation-extraction" "{base_path}/layout-extraction" 2>/dev/null)

        IF design_source == "code_only":
            REPORT: "Cannot proceed with code-only mode after import failure"
            EXIT 1
        ELSE:  # hybrid mode
            WARN: "Continuing with visual-only mode"
            design_source = "visual_only"

    # Check file existence and assess completeness
    style_exists = exists("{base_path}/style-extraction/style-1/design-tokens.json")
    animation_exists = exists("{base_path}/animation-extraction/animation-tokens.json")
    layout_count = bash(ls {base_path}/layout-extraction/layout-*.json 2>/dev/null | wc -l)
    layout_exists = (layout_count > 0)

    style_complete = false
    animation_complete = false
    layout_complete = false
    missing_categories = []

    # Style completeness check
    IF style_exists:
        tokens = Read("{base_path}/style-extraction/style-1/design-tokens.json")
        style_complete = (
            tokens.colors?.brand && tokens.colors?.surface &&
            tokens.typography?.font_family && tokens.spacing &&
            Object.keys(tokens.colors.brand || {}).length >= 3 &&
            Object.keys(tokens.spacing || {}).length >= 8
        )
        IF NOT style_complete AND tokens._metadata?.completeness?.missing_categories:
            missing_categories.extend(tokens._metadata.completeness.missing_categories)
    ELSE:
        missing_categories.push("style tokens")

    # Animation completeness check
    IF animation_exists:
        anim = Read("{base_path}/animation-extraction/animation-tokens.json")
        animation_complete = (
            anim.duration && anim.easing &&
            Object.keys(anim.duration || {}).length >= 3 &&
            Object.keys(anim.easing || {}).length >= 3
        )
        IF NOT animation_complete AND anim._metadata?.completeness?.missing_items:
            missing_categories.extend(anim._metadata.completeness.missing_items)
    ELSE:
        missing_categories.push("animation tokens")

    # Layout completeness check
    IF layout_exists:
        # Read first layout file to verify structure
        first_layout = bash(ls {base_path}/layout-extraction/layout-*.json 2>/dev/null | head -1)
        layout_data = Read(first_layout)
        layout_complete = (
            layout_count >= 1 &&
            layout_data.template?.dom_structure &&
            layout_data.template?.css_layout_rules
        )
        IF NOT layout_complete:
            missing_categories.push("complete layout structure")
    ELSE:
        missing_categories.push("layout templates")

    needs_visual_supplement = false

    IF design_source == "code_only" AND NOT (style_complete AND layout_complete):
        REPORT: "⚠️  Missing: {', '.join(missing_categories)}"
        REPORT: "Options: 'continue' | 'supplement: <images>' | 'cancel'"
        user_response = WAIT_FOR_USER_INPUT()
        MATCH user_response:
            "continue" → needs_visual_supplement = false
            "supplement: ..." → needs_visual_supplement = true; --images = extract_path(user_response)
            "cancel" → EXIT 0
            default → needs_visual_supplement = false
    ELSE IF design_source == "hybrid":
        needs_visual_supplement = true

    # Animation reuse confirmation (code import with complete animations)
    IF design_source == "code_only" AND animation_complete:
        REPORT: "✅ 检测到完整的动画系统（来自代码导入）"
        REPORT: "   Duration scales: {duration_count} | Easing functions: {easing_count}"
        REPORT: ""
        REPORT: "Options:"
        REPORT: "  • 'reuse' (默认) - 复用已有动画系统"
        REPORT: "  • 'regenerate' - 重新生成动画系统（交互式）"
        REPORT: "  • 'cancel' - 取消工作流"
        user_response = WAIT_FOR_USER_INPUT()
        MATCH user_response:
            "reuse" → skip_animation_extraction = true
            "regenerate" → skip_animation_extraction = false
            "cancel" → EXIT 0
            default → skip_animation_extraction = true  # Default: reuse

    STORE: needs_visual_supplement, style_complete, animation_complete, layout_complete, skip_animation_extraction
```

### Phase 1: Style Extraction
```bash
IF design_source == "visual_only" OR needs_visual_supplement:
    REPORT: "🎨 Phase 1: Style Extraction (variants: {style_variants})"
    command = "/workflow:ui-design:style-extract --design-id \"{design_id}\" " +
              (--images ? "--images \"{images}\" " : "") +
              (--prompt ? "--prompt \"{prompt}\" " : "") +
              "--variants {style_variants} --interactive"
    SlashCommand(command)
ELSE:
    REPORT: "✅ Phase 1: Style (Using Code Import)"
```

### Phase 2.3: Animation Extraction
```bash
# Determine if animation extraction is needed
should_extract_animation = false

IF (design_source == "visual_only" OR needs_visual_supplement):
    # Pure visual input or hybrid mode requiring visual supplement
    should_extract_animation = true
ELSE IF NOT animation_complete:
    # Code import but animations are incomplete
    should_extract_animation = true
ELSE IF design_source == "code_only" AND animation_complete AND NOT skip_animation_extraction:
    # Code import with complete animations, but user chose to regenerate
    should_extract_animation = true

IF should_extract_animation:
    REPORT: "🚀 Phase 2.3: Animation Extraction"

    # Build command with available inputs
    command_parts = [f"/workflow:ui-design:animation-extract --design-id \"{design_id}\""]

    IF --images:
        command_parts.append(f"--images \"{--images}\"")

    IF --prompt:
        command_parts.append(f"--prompt \"{--prompt}\"")

    command_parts.append("--interactive")

    command = " ".join(command_parts)
    SlashCommand(command)
ELSE:
    REPORT: "✅ Phase 2.3: Animation (Using Code Import)"

# Output: animation-tokens.json + animation-guide.md
# SlashCommand blocks until phase finishes executing
# When phase finishes, IMMEDIATELY execute Phase 2.5 (auto-continue)
```

### Phase 2.5: Layout Extraction
```bash
targets_string = ",".join(inferred_target_list)

IF (design_source == "visual_only" OR needs_visual_supplement) OR (NOT layout_complete):
    REPORT: "🚀 Phase 2.5: Layout Extraction ({targets_string}, variants: {layout_variants}, device: {device_type})"
    command = "/workflow:ui-design:layout-extract --design-id \"{design_id}\" " +
              (--images ? "--images \"{images}\" " : "") +
              (--prompt ? "--prompt \"{prompt}\" " : "") +
              "--targets \"{targets_string}\" --variants {layout_variants} --device-type \"{device_type}\" --interactive"
    SlashCommand(command)
ELSE:
    REPORT: "✅ Phase 2.5: Layout (Using Code Import)"
```

### Phase 3: UI Assembly
```bash
command = "/workflow:ui-design:generate --design-id \"{design_id}\""

total = style_variants × layout_variants × len(inferred_target_list)

REPORT: "🚀 Phase 3: UI Assembly | Matrix: {s}×{l}×{n} = {total} prototypes"
REPORT: "   → Pure assembly: Combining layout templates + design tokens"
REPORT: "   → Device: {device_type} (from layout templates)"
REPORT: "   → Assembly tasks: {total} combinations"

SlashCommand(command)

# SlashCommand blocks until phase finishes executing
# When phase finishes, IMMEDIATELY execute Phase 4 (auto-continue)
# Output:
# - {target}-style-{s}-layout-{l}.html (assembled prototypes)
# - {target}-style-{s}-layout-{l}.css
# - compare.html (interactive matrix view)
# - PREVIEW.md (usage instructions)
```

### Phase 4: Design System Integration
```bash
command = "/workflow:ui-design:update" + (--session ? " --session {session_id}" : "")
SlashCommand(command)

# SlashCommand blocks until phase finishes executing
# When phase finishes:
#   - If --batch-plan flag present: IMMEDIATELY execute Phase 5 (auto-continue)
#   - If no --batch-plan: Workflow complete, display final report
```

### Phase 5: Batch Task Generation (Optional)
```bash
IF --batch-plan:
    FOR target IN inferred_target_list:
        task_desc = "Implement {target} {target_type} based on design system"
        SlashCommand("/workflow:plan --agent \"{task_desc}\"")
```

## TodoWrite Pattern
```javascript
// Initialize IMMEDIATELY after Phase 0c user confirmation to track multi-phase execution
TodoWrite({todos: [
  {"content": "Execute style extraction", "status": "in_progress", "activeForm": "Executing style extraction"},
  {"content": "Execute animation extraction", "status": "pending", "activeForm": "Executing animation extraction"},
  {"content": "Execute layout extraction", "status": "pending", "activeForm": "Executing layout extraction"},
  {"content": "Execute UI assembly", "status": "pending", "activeForm": "Executing UI assembly"},
  {"content": "Execute design integration", "status": "pending", "activeForm": "Executing design integration"}
]})

// ⚠️ CRITICAL: When each SlashCommand execution finishes (Phase 1-5), you MUST:
// 1. SlashCommand blocks and returns when phase finishes executing
// 2. Update current phase: status → "completed"
// 3. Update next phase: status → "in_progress"
// 4. IMMEDIATELY execute next phase SlashCommand (auto-continue)
// This ensures continuous workflow tracking and prevents premature stopping
```

## Completion Output
```
✅ UI Design Explore-Auto Workflow Complete!

Architecture: Style-Centric Batch Generation
Run ID: {run_id} | Session: {session_id or "standalone"}
Type: {icon} {target_type} | Device: {device_type} | Matrix: {s}×{l}×{n} = {total} prototypes

Phase 1: {s} complete design systems (style-extract with multi-select)
Phase 2: {n×l} layout templates (layout-extract with multi-select)
  - Device: {device_type} layouts
  - {n} targets × {l} layout variants = {n×l} structural templates
  - User-selected concepts generated in parallel
Phase 3: UI Assembly (generate)
  - Pure assembly: layout templates + design tokens
  - {s}×{l}×{n} = {total} final prototypes
Phase 4: Brainstorming artifacts updated
[Phase 5: {n} implementation tasks created]  # if --batch-plan

Assembly Process:
✅ Separation of Concerns: Layout (structure) + Style (tokens) kept separate
✅ Layout Extraction: {n×l} reusable structural templates
✅ Multi-Selection Workflow: User selects multiple variants from generated options
✅ Pure Assembly: No design decisions in generate phase
✅ Device-Optimized: Layouts designed for {device_type}

Design Quality:
✅ Token-Driven Styling: 100% var() usage
✅ Structural Variety: {l} distinct layouts per target (user-selected)
✅ Style Variety: {s} independent design systems (user-selected)
✅ Device-Optimized: Layouts designed for {device_type}

📂 {base_path}/
  ├── .intermediates/          (Intermediate analysis files)
  │   ├── style-analysis/      (analysis-options.json with embedded user_selection, computed-styles.json if URL mode)
  │   ├── animation-analysis/  (analysis-options.json with embedded user_selection, animations-*.json if URL mode)
  │   └── layout-analysis/     (analysis-options.json with embedded user_selection, dom-structure-*.json if URL mode)
  ├── style-extraction/        ({s} complete design systems)
  ├── animation-extraction/    (animation-tokens.json, animation-guide.md)
  ├── layout-extraction/       ({n×l} layout template files: layout-{target}-{variant}.json)
  ├── prototypes/              ({total} assembled prototypes)
  └── .run-metadata.json       (includes device type)

🌐 Preview: {base_path}/prototypes/compare.html
  - Interactive {s}×{l} matrix view
  - Side-by-side comparison
  - Target-specific layouts with style-aware structure
  - Toggle between {n} targets

{icon} Targets: {', '.join(targets)} (type: {target_type})
  - Each target has {l} custom-designed layouts
  - Each style × target × layout has unique HTML structure (not just CSS!)
  - Layout plans stored as structured JSON
  - Optimized for {device_type} viewing

Next: [/workflow:execute] OR [Open compare.html → Select → /workflow:plan]
```