art

name	Art
description	Complete visual content system. USE WHEN user wants to create visual content, illustrations, diagrams, OR mentions art, header images, visualizations, mermaid, flowchart, technical diagram, infographic, PAI icon, pack icon, or PAI pack icon.

Art Skill

Complete visual content system for creating illustrations, diagrams, and visual content.

Customization

Before executing, check for user customizations at: ~/.claude/skills/PAI/USER/SKILLCUSTOMIZATIONS/Art/

If this directory exists, load and apply:

• PREFERENCES.md - Aesthetic preferences, default model, output location
• CharacterSpecs.md - Character design specifications
• SceneConstruction.md - Scene composition guidelines

These override default behavior. If the directory does not exist, proceed with skill defaults.

🚨 MANDATORY: Voice Notification (REQUIRED BEFORE ANY ACTION)

You MUST send this notification BEFORE doing anything else when this skill is invoked.

1. Send voice notification:

   curl -s -X POST http://localhost:8888/notify \
     -H "Content-Type: application/json" \
     -d '{"message": "Running the WORKFLOWNAME workflow in the Art skill to ACTION"}' \
     > /dev/null 2>&1 &
   

2. Output text notification:

   Running the **WorkflowName** workflow in the **Art** skill to ACTION...
   

This is not optional. Execute this curl command immediately upon skill invocation.

🚨🚨🚨 MANDATORY: Output to Downloads First 🚨🚨🚨

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
⚠️  ALL GENERATED IMAGES GO TO ~/Downloads/ FIRST                   ⚠️
⚠️  NEVER output directly to project directories                    ⚠️
⚠️  User MUST preview in Finder/Preview before use                  ⚠️
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

This applies to ALL workflows in this skill.

Workflow Routing

Route to the appropriate workflow based on the request.

• Remove background from image → Workflows/RemoveBackground.md
• UL wallpaper with logo integration → Workflows/ULWallpaper.md
• Blog header or editorial illustration → Workflows/Essay.md
• D3.js interactive chart or dashboard → Workflows/D3Dashboards.md
• Visualization or unsure which format → Workflows/Visualize.md
• Mermaid flowchart or sequence diagram → Workflows/Mermaid.md
• Technical or architecture diagram → Workflows/TechnicalDiagrams.md
• Taxonomy or classification grid → Workflows/Taxonomies.md
• Timeline or chronological progression → Workflows/Timelines.md
• Framework or 2x2 matrix → Workflows/Frameworks.md
• Comparison or X vs Y → Workflows/Comparisons.md
• Annotated screenshot → Workflows/AnnotatedScreenshots.md
• Recipe card or step-by-step → Workflows/RecipeCards.md
• Aphorism or quote card → Workflows/Aphorisms.md
• Conceptual map or territory → Workflows/Maps.md
• Stat card or big number visual → Workflows/Stats.md
• Comic or sequential panels → Workflows/Comics.md
• YouTube thumbnail (with existing assets) → Workflows/YouTubeThumbnail.md
• Ad-hoc YouTube thumbnail (generate from content) → Workflows/AdHocYouTubeThumbnail.md
• PAI pack icon → Workflows/CreatePAIPackIcon.md

---

Core Aesthetic

Default: Production-quality concept art style appropriate for editorial and technical content.

User customization defines specific aesthetic preferences including:

• Visual style and influences
• Line treatment and rendering approach
• Color palette and wash technique
• Character design specifications
• Scene composition rules

Load from: ~/.claude/skills/PAI/USER/SKILLCUSTOMIZATIONS/Art/PREFERENCES.md

---

Reference Images

User customization may include reference images for consistent style.

Check ~/.claude/skills/PAI/USER/SKILLCUSTOMIZATIONS/Art/PREFERENCES.md for:

• Reference image locations
• Style examples by use case
• Character and scene reference guidance

Usage: Before generating images, load relevant user-provided references to match their preferred style.

---

Image Generation

Default model: Check user customization at SKILLCUSTOMIZATIONS/Art/PREFERENCES.md Fallback: nano-banana-pro (Gemini 3 Pro)

Model-Specific Size Requirements

Each model accepts different --size formats. Using the wrong format causes validation errors.

Model	--size format	Valid values	Default
flux	Aspect ratio	1:1, 16:9, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 21:9	16:9
nano-banana	Aspect ratio	1:1, 16:9, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 21:9	16:9
nano-banana-pro	Resolution tier	1K, 2K, 4K (also accepts --aspect-ratio separately)	2K
gpt-image-1	Pixel dimensions	1024x1024, 1536x1024, 1024x1536	1024x1024

Note: nano-banana-pro uses --size for resolution quality and a separate --aspect-ratio flag for aspect ratio (defaults to 16:9).

🚨 CRITICAL: Always Output to Downloads First

ALL generated images MUST go to ~/Downloads/ first for preview and selection.

Never output directly to a project's public/images/ directory. User needs to review images in Preview before they're used.

Workflow:

1. Generate to ~/Downloads/[descriptive-name].png
2. User reviews in Preview
3. If approved, THEN copy to final destination (e.g., cms/public/images/)
4. Create WebP and thumbnail versions at final destination

# CORRECT - Output to Downloads for preview
bun run ~/.claude/skills/Art/Tools/Generate.ts \
  --model nano-banana-pro \
  --prompt "[PROMPT]" \
  --size 2K \
  --aspect-ratio 1:1 \
  --thumbnail \
  --output ~/Downloads/blog-header-concept.png

# After approval, copy to final location
cp ~/Downloads/blog-header-concept.png ${PROJECTS_DIR}/your-site/cms/public/images/
cp ~/Downloads/blog-header-concept-thumb.png ${PROJECTS_DIR}/your-site/cms/public/images/

Multiple Reference Images (Character/Style Consistency)

For improved character or style consistency, use multiple --reference-image flags:

# Multiple reference images for better likeness
bun run ~/.claude/skills/Art/Tools/Generate.ts \
  --model nano-banana-pro \
  --prompt "Person from references at a party..." \
  --reference-image face1.jpg \
  --reference-image face2.jpg \
  --reference-image face3.jpg \
  --size 2K \
  --aspect-ratio 16:9 \
  --output ~/Downloads/character-scene.png

API Limits (Gemini):

• Up to 5 human reference images
• Up to 6 object reference images
• Maximum 14 total reference images per request

API keys in: ${PAI_DIR}/.env

Examples

Example 1: Blog header image

User: "create a header for my AI agents post"
→ Invokes ESSAY workflow
→ Generates charcoal sketch prompt
→ Creates image with architectural aesthetic
→ Saves to ~/Downloads/ for preview
→ After approval, copies to public/images/

Example 2: Technical architecture diagram

User: "make a diagram showing the SPQA pattern"
→ Invokes TECHNICALDIAGRAMS workflow
→ Creates structured architecture visual
→ Outputs PNG with consistent styling

Example 3: Comparison visualization

User: "visualize humans vs AI decision-making"
→ Invokes COMPARISONS workflow
→ Creates side-by-side visual
→ Charcoal sketch with labeled elements

Example 4: PAI pack icon

User: "create icon for the skill system pack"
→ Invokes CREATEPAIPACKICON workflow
→ Reads workflow from Workflows/CreatePAIPackIcon.md
→ Generates 1K image with --remove-bg for transparency
→ Resizes to 256x256 RGBA PNG
→ Outputs to ~/Downloads/ for preview
→ After approval, copies to ${PROJECTS_DIR}/PAI/Packs/icons/