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smart-illustrator

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AI-powered article illustrations with intelligent position detection and cover learning system. Claude Code Skill.

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# Smart Illustrator

[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
[![Status: Experimental](https://img.shields.io/badge/Status-Experimental-orange.svg)](https://raw.githubusercontent.com/axtonliu/smart-illustrator/main/)

**[中文文档](README.zh-CN.md)**

> **🆕 v1.4.0 — Tri-Engine System (Feb 2026)**
>
> New Excalidraw engine for hand-drawn concept diagrams. Three-tier priority: Gemini → Excalidraw → Mermaid. All diagram engines now output PNG by default. [Details →](#tri-engine-system)

![Tri-Engine Architecture](https://raw.githubusercontent.com/axtonliu/smart-illustrator/main/assets/dual-engine-architecture.png)

Intelligent article illustration Skill for Claude Code with **tri-engine system**: automatically selects Gemini (for creative visuals), Excalidraw (for hand-drawn diagrams), or Mermaid (for structured diagrams) based on content type.

## Status

> **Status: Experimental**
>
> - This is a public prototype that works for my demos, but does not yet cover all input scales and edge cases.
> - Output quality varies based on model version and input structure; results may fluctuate.
> - My primary focus is demonstrating how tools and systems work together, not maintaining this codebase.
> - If you encounter issues, please submit a reproducible case (input + output file + steps to reproduce).

## Why Smart Illustrator?

Creating illustrations for articles is time-consuming: manual design takes hours, stock photos lack context, and generic AI tools don't understand article structure. Smart Illustrator combines intelligent position detection, tri-engine system (Gemini + Excalidraw + Mermaid), and cover learning to generate contextual illustrations in minutes.

**Who it's for:** Newsletter writers, YouTube creators, technical bloggers, course instructors.

**When to use:** When you need high-quality illustrations for articles, YouTube thumbnails with best practices, or consistent visual style across content series.

## Background: the Make workflow version (auto-illustrate + WeChat publish)

Before packaging this into a Skill, I had already built an end-to-end Make workflow:
**search → write → auto-illustrate → format/publish (WeChat Official Account)**.

Full walkthrough (workflow logic & design trade-offs):
https://youtu.be/TbyJ3imLuXQ

## Features

- **Tri-Engine System**: Auto-selects Gemini, Excalidraw, or Mermaid based on content type
- **Smart Position Detection**: Analyzes article structure to identify optimal illustration points
- **10+ Illustration Types**: flowchart, sequence, mindmap, concept, comparison, scene, metaphor...
- **Extensible Style System**: Light, Dark, Minimal, Cover, and custom styles
- **Cover Mode**: Generate high-CTR YouTube thumbnails with best practices built-in
- **Multi-Platform Sizes**: YouTube, WeChat, Twitter, Xiaohongshu presets
- **Resume Generation**: Skip already-generated images, regenerate specific ones
- **Brand Customizable**: Modify `styles/` to apply your brand style
- **Multiple Backends**: Gemini API for creative visuals (2K resolution), Excalidraw for hand-drawn diagrams, Mermaid CLI for structured diagrams — all output PNG by default

## What Are Skills?

Skills are prompt-based extensions for [Claude Code](https://docs.anthropic.com/en/docs/claude-code) that give Claude specialized capabilities. Unlike MCP servers that require complex setup, skills are simple markdown files that Claude loads on demand.

## Installation

### Prerequisites

- [Claude Code CLI](https://docs.anthropic.com/en/docs/claude-code) installed
- [Bun](https://bun.sh/) runtime (for scripts)
- [Mermaid CLI](https://github.com/mermaid-js/mermaid-cli) (for Mermaid diagrams): `npm install -g @mermaid-js/mermaid-cli`
- Excalidraw export dependencies (optional, for Excalidraw diagrams): `cd ~/.claude/skills/smart-illustrator/scripts && npm install && npx playwright install firefox`
- Gemini API Key (optional, for creative visuals): https://aistudio.google.com/apikey

### Option A: Manual Installation (Recommended)

```bash
# Clone to Claude Code Skills directory
git clone https://github.com/axtonliu/smart-illustrator.git ~/.claude/skills/smart-illustrator
```

### Option B: Copy Individual Files

```bash
# If you only want the skill without scripts
cp -r smart-illustrator/SKILL.md ~/.claude/skills/smart-illustrator/
cp -r smart-illustrator/styles ~/.claude/skills/smart-illustrator/
```

## Usage

### Basic Usage

```bash
# Analyze article and auto-generate illustrations (default)
/smart-illustrator path/to/article.md

# Output prompts only, don't auto-generate images
/smart-illustrator path/to/article.md --prompt-only

# Specify style (loads from styles/ directory)
/smart-illustrator path/to/article.md --style light     # Light style (default)
/smart-illustrator path/to/article.md --style dark      # Dark tech style
/smart-illustrator path/to/article.md --style minimal   # Minimal style

# List available styles
/smart-illustrator --list-styles

# Without cover image
/smart-illustrator path/to/article.md --no-cover

# Specify number of illustrations
/smart-illustrator path/to/article.md --count 5
```

### Parameters

| Parameter | Default | Description |
|-----------|---------|-------------|
| `--mode` | `article` | Mode: `article`, `slides`, or `cover` |
| `--engine` | `auto` | Engine: `auto`, `gemini`, `excalidraw`, or `mermaid` |
| `--mermaid-embed` | `false` | Embed Mermaid code blocks instead of exporting PNG |
| `--platform` | `youtube` | Cover platform: `youtube`/`wechat`/`twitter`/`xiaohongshu`/`landscape`/`square` |
| `--topic` | - | Cover topic (alternative to article path, cover mode only) |
| `--description` | - | Cover visual direction (cover mode only) |
| `--prompt-only` | `false` | Output prompts only, don't call API to generate images |
| `--style` | `light` | Style name, loads `styles/style-{name}.md` |
| `--list-styles` | - | List all available styles in `styles/` directory |
| `--no-cover` | `false` | Skip cover image generation (article mode) |
| `--count` | auto | Number of illustrations (auto-determined by article length) |

### Illustration Count Guidelines

| Article Length | Suggested Count |
|----------------|-----------------|
| Short (< 1000 words) | 1-2 images |
| Medium (1000-3000 words) | 2-4 images |
| Long (> 3000 words) | 4-6 images |
| Tutorials/Guides | 1 per major step |

### Output Files

```
article.md                    # Original
article-image.md              # Article with illustrations (main output)
article-cover.png             # Cover image (16:9)
article-image-01.png          # Content illustration (3:4)
article-image-02.png
article-image-03.png
```

### Manual Script Usage

#### generate-image.ts (Single Image)

```bash
export GEMINI_API_KEY=your_key

# From prompt text
npx -y bun ~/.claude/skills/smart-illustrator/scripts/generate-image.ts \
  --prompt "A concept diagram showing..." \
  --output image.png

# From prompt file
npx -y bun ~/.claude/skills/smart-illustrator/scripts/generate-image.ts \
  --prompt-file prompt.md \
  --output image.png
```

| Option | Description |
|--------|-------------|
| `-p, --prompt` | Image description text |
| `-f, --prompt-file` | Read prompt from file |
| `-o, --output` | Output path (default: generated.png) |
| `-m, --model` | Model (default: gemini-3-pro-image-preview) |

#### batch-generate.ts (Batch Generation)

```bash
export GEMINI_API_KEY=your_key

npx -y bun ~/.claude/skills/smart-illustrator/scripts/batch-generate.ts \
  --config slides.json \
  --output-dir ./images \
  --prefix SKILL_01
```

| Option | Description |
|--------|-------------|
| `-c, --config` | JSON config file (required) |
| `-o, --output-dir` | Output directory (default: ./illustrations) |
| `-m, --model` | Model (default: gemini-3-pro-image-preview) |
| `-d, --delay` | Delay between requests in ms (default: 2000) |
| `-p, --prefix` | Filename prefix (default: from config filename) |
| `-r, --regenerate` | Regenerate specific images (e.g., "3" or "3,5,7") |
| `-f, --force` | Force regenerate all images (ignore existing) |

**Resume Generation**: By default, the script skips images that already exist in the output directory. This allows resuming interrupted generation without re-generating completed images.

Output: `{prefix}-01.png`, `{prefix}-02.png`, etc.

#### mermaid-export.ts (Mermaid to PNG)

```bash
# From .mmd file
npx -y bun ~/.claude/skills/smart-illustrator/scripts/mermaid-export.ts \
  --input diagram.mmd \
  --output diagram.png

# From inline content
npx -y bun ~/.claude/skills/smart-illustrator/scripts/mermaid-export.ts \
  --content "flowchart LR
    A[Start] --> B[End]" \
  --output simple.png \
  --theme dark
```

| Option | Description |
|--------|-------------|
| `-i, --input` | Input .mmd file path |
| `-c, --content` | Mermaid diagram content (alternative) |
| `-o, --output` | Output path (default: output.png) |
| `-t, --theme` | Theme: `light` (default) or `dark` |
| `-w, --width` | Image width in pixels |
| `-H, --height` | Image height in pixels |

## PPT/Slides Generation Mode

Beyond article illustrations, this skill can generate batch infographics for PPT/Keynote slides.

### When to Use

| Mode | Use Case | Output |
|------|----------|--------|
| **Article Mode** | Blog posts, newsletters | 3-5 illustrations inserted in article |
| **Slides Mode** | Video B-roll, presentations | 8-15 standalone infographics |

### JSON Format for Batch Generation

Use `pictures[]` array format with explicit batch rules:

```json
{
  "instruction": "请为我绘制 7 张图片（generate 7 images）。你是一位「信息图绘制者」。请逐条执行 pictures 数组：每个 id 对应 1 张独立的 16:9 信息图，严禁合并，严禁只输出文字描述。",
  "batch_rules": {
    "total": 7,
    "one_item_one_image": true,
    "aspect_ratio": "16:9",
    "do_not_merge": true
  },
  "fallback": "如果无法一次生成全部图片：请输出 7 条独立的单图绘图指令...",
  "style": "[Complete style prompt - see styles/style-light.md]",
  "pictures": [
    { "id": 1, "topic": "封面", "content": "Course Name\n\nSection Title\n\nLearning objectives..." },
    { "id": 2, "topic": "核心概念", "content": "[Raw content]" }
  ]
}
```

### Critical Rules

1. **Use `pictures[]` array** - Array structure helps Gemini enter "loop execution" mode for batch generation.

2. **Add image trigger phrase** - Must include "请为我绘制 N 张图片（generate N images）" to trigger image generation mode.

3. **Role as "绘制者" not "导演"** - Use "信息图绘制者" (illustrator) not "视觉导演" (director) to trigger actual drawing behavior.

4. **Separate instruction from style** - `instruction` = what to do + role; `style` = visual rules only.

5. **Pass complete style** - Include the full style prompt from `styles/style-light.md`, don't summarize.

6. **Content granularity** - Judge by information density, not mechanically by H2 headers.

### Cover Slide Branding (PPT Mode)

For course/series content, the cover slide (`id: 1`) should include:

```json
{
  "id": 1,
  "topic": "封面",
  "content": "Agent Skills 完全指南\n\n第4节：渐进式披露与 Description 优化\n\n学习目标：理解 Progressive Disclosure 机制"
}
```

Structure:
- **Series name**: e.g., "Agent Skills 完全指南"
- **Section number**: e.g., "第4节"
- **Section title**: e.g., "渐进式披露与 Description 优化"
- **Learning objectives** (optional)

### Output Options (Applies to All Modes)

`--prompt-only` is a **global option** that works with Article, Slides, Cover, and all other modes:

| Output Mode | Parameter | Description | API Required |
|-------------|-----------|-------------|--------------|
| Generate Images | Default | Calls Gemini API to generate images | ✅ Yes |
| Output JSON Prompt | `--prompt-only` | Copy to Gemini Web for manual generation | ❌ No |

**Example Combinations:**

```bash
# Slides mode + generate images (needs API)
/smart-illustrator script.md --mode slides

# Slides mode + output JSON only (no API)
/smart-illustrator script.md --mode slides --prompt-only

# Article mode + generate images (needs API)
/smart-illustrator article.md

# Article mode + output JSON only (no API)
/smart-illustrator article.md --prompt-only
```

**Manual Batch Generation (after JSON prompt output):**

```bash
export GEMINI_API_KEY=your_key

npx -y bun ~/.claude/skills/smart-illustrator/scripts/batch-generate.ts \
  --config slides.json \
  --output-dir ./images
```

See `references/slides-prompt-example.json` for a complete example.

> **💡 Tip**: Batch image generation with JSON in Gemini doesn't have 100% success rate. If generation fails:
> 1. Retry 1-3 times (usually succeeds)
> 2. If retries fail, copy individual items from `pictures` array and generate one by one

---

## Configuration Files (Style Reuse)

Save common parameters to configuration files for consistent style across series content (courses, newsletters).

### Configuration File Locations

**Priority: CLI Arguments > Project Config > User Config**

| Location | Path | Purpose |
|----------|------|---------|
| Project | `{working-dir}/.smart-illustrator/config.json` | Project-specific style (e.g., course series) |
| User | `~/.smart-illustrator/config.json` | User's global default style |

### Configuration File Format

```json
{
  "references": [
    "./refs/style-ref-01.png",
    "./refs/style-ref-02.png"
  ]
}
```

**Supported options**:
- `references`: Array of reference image paths (relative paths are resolved relative to config file directory)

### Usage Examples

```bash
# Initial setup: configure style for course series
cd ~/my-course
/smart-illustrator article-01.md --ref ./refs/style-1.png --save-config

# Subsequent generation: auto-apply config
/smart-illustrator article-02.md  # Automatically uses reference images

# Temporary override: use different reference
/smart-illustrator article-03.md --ref ./other-ref.png

# Completely ignore config
/smart-illustrator article-04.md --no-config

# Save to user-level config (global default)
/smart-illustrator article.md --ref ./my-style.png --save-config-global
```

### Configuration Loading Rules

1. Read user-level config (if exists)
2. Read project-level config (if exists, overrides user-level)
3. Apply command-line arguments (overrides config files)

**Typical scenarios**:
- **Course series**: Save `.smart-illustrator/config.json` in project directory for unified style across chapters
- **Personal default**: Save `~/.smart-illustrator/config.json` in user directory as global default
- **Temporary adjustment**: Use `--ref` parameter to temporarily override config without modifying saved settings

---

## Cover Mode (YouTube Thumbnails)

Generate high-CTR cover images for YouTube, WeChat, Twitter, and more. Built on YouTuber best practices research.

```bash
# Generate YouTube thumbnail from article
/smart-illustrator path/to/article.md --mode cover --platform youtube

# Generate with specific topic
/smart-illustrator --mode cover --platform youtube --topic "Claude 4 Deep Review"

# Generate with visual direction
/smart-illustrator --mode cover --platform wechat --description "Comparison diagram + tech aesthetic"
```

### Supported Platforms

All outputs are **2K resolution** (e.g., ~2816×1584 for 16:9).

| Platform | Code | Aspect Ratio |
|----------|------|--------------|
| YouTube | `youtube` | 16:9 |
| WeChat | `wechat` | 2.35:1 |
| Twitter/X | `twitter` | 1.91:1 |
| Xiaohongshu | `xiaohongshu` | 3:4 |
| Landscape | `landscape` | 16:9 |
| Square | `square` | 1:1 |

### Design Principles (from `references/cover-best-practices.md`)

1. **3-Second Rule**: Instantly convey topic and value
2. **High Contrast**: Dark background + bright subject
3. **Single Focus**: Only one visual center
4. **Minimal Text**: 3-6 words, bold sans-serif
5. **Curiosity Gap**: Make viewers want to click

### Visual Metaphors for Tech Content

| Concept | Metaphor |
|---------|----------|
| AI Assistant | Two collaborative hands, chat bubbles |
| Efficiency | Upward arrows, stairs, rocket trail |
| Automation | Gears, assembly line nodes |
| Learning/Growth | Seed → tree, ascending stairs |
| Problem → Solution | Maze exit, completed puzzle |

---

## Smart Position Detection

The skill analyzes article structure to identify optimal illustration points:

| Signal | Illustration Value |
|--------|-------------------|
| Abstract concept first appears | High - helps build mental model |
| Process/step description | High - visual is clearer than text |
| Comparison/choice discussion | High - side-by-side is clear |
| Data/statistics reference | Medium - numbers visualized have impact |
| Section transition point | Medium - provides visual breathing room |
| Emotional/story climax | Medium - enhances resonance |

---

## Tri-Engine System

The skill automatically selects the best rendering engine based on content, with three-tier priority:

| Priority | Engine | Best For | Output |
|----------|--------|----------|--------|
| **1** | **Gemini** | Creative visuals (metaphors, scenes, infographics) | PNG (2K) |
| **2** | **Excalidraw** | Hand-drawn concept diagrams, comparisons, simple flows | PNG |
| **3** | **Mermaid** | Complex structured diagrams (flowcharts, sequences, architectures) | PNG |

**Selection logic:**
- Needs metaphor, emotion, or creative expression → Gemini
- Needs hand-drawn / informal style, or simple concept relationships → Excalidraw
- Complex structured flows / architectures → Mermaid

## Illustration Types

| Type | Engine | Best For | Syntax/Style |
|------|--------|----------|--------------|
| `process` | Mermaid | Complex workflows | `flowchart` |
| `architecture` | Mermaid | System components | `block-beta` |
| `sequence` | Mermaid | API calls, interactions | `sequenceDiagram` |
| `mindmap` | Mermaid | Knowledge structure | `mindmap` |
| `state` | Mermaid | State transitions | `stateDiagram` |
| `concept` | Excalidraw / Gemini | Abstract concepts | Hand-drawn / Center-radial |
| `comparison` | Excalidraw / Gemini | A vs B, contrasts | Hand-drawn / Left-right split |
| `data` | Gemini | Statistics, trends | Infographic style |
| `scene` | Gemini | Stories, scenarios | Narrative illustration |
| `metaphor` | Gemini | Analogies, symbols | Creative visual |
| `cover` | Gemini | Article cover | 16:9 dark tech |

### Type × Composition Reference

| Type | Recommended Composition | Elements |
|------|------------------------|----------|
| concept | Center-radial, hierarchy | Core icon + surrounding factors |
| process | Horizontal/vertical flow | Nodes + arrows + labels |
| comparison | Left-right / top-bottom split | Two columns + corresponding items |
| data | Chart-style | Numbers prominent + graphical |
| scene | Narrative illustration | Characters + environment + action |
| summary | Card grid, bullet points | Structured layout |
| metaphor | Analogy visual | Creative visual metaphor |

## Style System

### Built-in Styles

| Style | File | Best For |
|-------|------|----------|
| Light | `styles/style-light.md` | Content illustrations (default) |
| Dark | `styles/style-dark.md` | Cover images, marketing |
| Minimal | `styles/style-minimal.md` | Technical docs, whitepapers |
| Cover | `styles/style-cover.md` | YouTube thumbnails, social covers (cover mode) |

### Content Illustrations: Light Style

- 3:4 portrait format
- Light gray background `#F8F9FA`
- Flat geometric + thin lines
- See `styles/style-light.md`

### Cover Images: Dark Tech Style

- 16:9 landscape format
- Deep blue gradient background
- Line icons + glassmorphism
- No text
- See `styles/style-dark.md`

### Custom Styles

Add your own style by creating `styles/style-{name}.md` and use it with `--style {name}`.

## File Structure

```
smart-illustrator/
├── SKILL.md                  # Skill definition (Claude Code entry)
├── CLAUDE.md                 # Project rules (style sync, JSON format)
├── README.md
├── README.zh-CN.md           # Chinese documentation
├── LICENSE
├── scripts/
│   ├── generate-image.ts     # Gemini single image generation
│   ├── batch-generate.ts     # Gemini batch generation (2K, resume support)
│   ├── mermaid-export.ts     # Mermaid diagram to PNG export
│   ├── excalidraw-export.ts  # Excalidraw diagram to PNG export
│   └── package.json          # Script dependencies (Excalidraw export)
├── styles/
│   ├── brand-colors.md       # Brand palette (customizable)
│   ├── style-light.md        # Light style Gemini prompt (default)
│   ├── style-dark.md         # Dark style Gemini prompt
│   ├── style-minimal.md      # Minimal style Gemini prompt
│   └── style-cover.md        # Cover/thumbnail style (cover mode)
└── references/
    ├── slides-prompt-example.json  # PPT mode JSON format example
    ├── cover-best-practices.md     # YouTube thumbnail best practices
    └── excalidraw-guide.md         # Excalidraw JSON specification
```

## Customization

Want to use your own brand style?

### Option 1: Modify Existing Styles

1. Edit `styles/brand-colors.md` with your colors
2. Sync color values in `styles/style-*.md` files
3. Done! Your Skill now has your own brand identity.

### Option 2: Add New Styles

1. Create `styles/style-{name}.md` (e.g., `style-corporate.md`)
2. Follow the format in existing style files
3. Use with `--style {name}`

### Example: Custom Brand Palette

Edit `styles/brand-colors.md`:

```markdown
## Core / 核心色
| Your Brand Color | `#XXXXXX` | Your main color |

## Accent / 点缀色
| Your Accent | `#XXXXXX` | Your accent color |
```

### Option 3: Customize AI Prompts

All AI prompts are centralized in `prompts/` directory for easy customization:

```
prompts/
  ├── README.md              # Prompt management guide
  ├── varied-styles.md       # Style hints for Varied mode
  └── learning-analysis.md   # Cover learning analysis prompt
```

**To customize:**

1. Edit the Markdown files directly (no code changes needed)
2. Changes take effect immediately on next generation
3. See `prompts/README.md` for detailed instructions

**Difference from Style System:**

- **Style files** (`styles/*.md`): Define core design rules (composition, colors, constraints)
- **Prompt templates** (`prompts/*.md`): Define generation strategies (style hints, analysis focus)
- Both work together: styles set the foundation, prompts add nuance

## Configuration Reference

### Mermaid Engine Parameters

| Parameter | Value | Description |
|-----------|-------|-------------|
| `-s` | `3` | 3x scale for high-resolution output |
| `-w` | `1600` | 1600px width |
| `-b` | `white` | White background (light style) |
| `-t` | `neutral` | Neutral theme |

**Full command:**
```bash
mmdc -i input.mmd -o output.png -s 3 -w 1600 -b white
```

**Mermaid Best Practices:**

This skill follows the style guidelines from [mermaid-visualizer](https://github.com/axtonliu/axton-obsidian-visual-skills):

- Use `subgraph id["Display Name"]` format for groups with spaces
- Reference nodes by ID, not display text
- Avoid `number. space` patterns (use `①②③` or `(1)(2)(3)` instead)
- Apply consistent color coding per layer/category
- Use `direction LR` inside subgraphs for horizontal layouts

### Gemini Engine Parameters

| Parameter | Value | Description |
|-----------|-------|-------------|
| Model | `gemini-3-pro-image-preview` | Best for illustrations |
| Resolution | 2K (2816×1536) | High-res output via `imageConfig.imageSize` |
| Content Aspect | 3:4 portrait | Optimized for article embedding |
| Cover Aspect | 16:9 landscape | Platform-ready cover format |
| Cover Text | **None** | Clean visual, title shown by platform |

### Brand Color Palette (Default: Axton Brand)

| Name | Hex | Usage |
|------|-----|-------|
| Deep Space Violet | `#2F2B42` | Core color, dark backgrounds |
| Amber | `#F59E0B` | Accent, highlights, Skills layer |
| Sky Blue | `#38BDF8` | Accent, secondary highlights, Agents layer |
| Light Gray | `#F8F9FA` | Light backgrounds, neutral elements |

### Style Files

| File | Purpose | Aspect |
|------|---------|--------|
| `styles/style-light.md` | Content illustrations (default) | 3:4 portrait |
| `styles/style-dark.md` | Cover images | 16:9 landscape |
| `styles/style-minimal.md` | Technical docs | 3:4 portrait |
| `styles/style-cover.md` | YouTube/social covers | Platform-specific |
| `styles/brand-colors.md` | Color palette reference | - |

## Cost

When using Gemini API for auto-generation:

| Model | Price | Quality |
|-------|-------|---------|
| `gemini-3-pro-image-preview` | $0.134/image ≈ ¥1/image | 2K (default) |

Get API Key: https://aistudio.google.com/apikey

## Contributing

Contributions welcome (low-maintenance project):

- Reproducible bug reports (input + output + steps + environment)
- Documentation improvements
- Small PRs (fixes/docs)

> **Note:** Feature requests may not be acted on due to limited maintenance capacity.

## Acknowledgments

This project builds upon these excellent tools:

- [Claude Code](https://docs.anthropic.com/en/docs/claude-code) - Anthropic's AI coding assistant
- [Mermaid](https://mermaid.js.org/) - Diagramming and charting tool
- [Mermaid CLI](https://github.com/mermaid-js/mermaid-cli) - Command line interface for Mermaid
- [Excalidraw](https://excalidraw.com/) - Virtual whiteboard for hand-drawn diagrams
- [Playwright](https://playwright.dev/) - Browser automation (for Excalidraw PNG export)
- [Gemini API](https://ai.google.dev/) - Google's image generation API
- [Bun](https://bun.sh/) - Fast JavaScript runtime

## License

MIT License - see [LICENSE](LICENSE) for details.

---

## Author

**Axton Liu** - AI Educator & Creator

- Website: [axtonliu.ai](https://www.axtonliu.ai)
- YouTube: [@AxtonLiu](https://youtube.com/@AxtonLiu)
- Twitter/X: [@axtonliu](https://twitter.com/axtonliu)

### Learn More

- [MAPS™ AI Agent Course](https://www.axtonliu.ai/aiagent) - Systematic AI agent skills training
- [Agent Skills Resource Library](https://www.axtonliu.ai/agent-skills) - Claude Code Skills collection and guides
- [Claude Skills: A Systematic Guide](https://www.axtonliu.ai/newsletters/ai-2/posts/claude-agent-skills-maps-framework) - Complete methodology
- [AI Elite Weekly Newsletter](https://www.axtonliu.ai/newsletters/ai-2) - Weekly AI insights
- [Free AI Course](https://www.axtonliu.ai/axton-free-course) - Get started with AI

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