chore: release v1.30.3

refactor(baoyu-article-illustrator): optimize SKILL.md from 197 to 150 lines
chore: release v1.30.2
2026-07-12 13:59:47 +08:00 · 2026-02-06 16:22:02 -06:00 · 2026-02-06 16:21:58 -06:00 · 2026-02-06 16:13:51 -06:00 · 2026-02-06 16:13:47 -06:00 · 2026-02-06 16:07:34 -06:00
29 changed files with 2538 additions and 1091 deletions
@@ -6,7 +6,7 @@
  },
  "metadata": {
    "description": "Skills shared by Baoyu for improving daily work efficiency",
-    "version": "1.28.0"
+    "version": "1.30.3"
  },
  "plugins": [
    {
@@ -2,6 +2,62 @@

 English | [中文](./CHANGELOG.zh.md)

+## 1.30.3 - 2026-02-06
+
+### Refactor
+- `baoyu-article-illustrator`: optimize SKILL.md from 197 to 150 lines (24% reduction); apply progressive disclosure pattern with concise overview and detailed references.
+
+## 1.30.2 - 2026-02-06
+
+### Refactor
+- `baoyu-cover-image`: optimize SKILL.md from 532 to 233 lines (56% reduction); extract reference image handling to `references/workflow/reference-images.md`; condense galleries to value-only tables with links.
+
+## 1.30.1 - 2026-02-06
+
+### Features
+- `baoyu-image-gen`: add OpenAI GPT Image edits support for reference images (`--ref`); auto-select Google or OpenAI when ref provided.
+
+### Fixes
+- `baoyu-image-gen`: change ref-related warnings to explicit errors with fix hints; add reference image validation.
+- `baoyu-cover-image`: enhance reference image analysis with deep extraction template; require MUST INCORPORATE section for concrete visual elements.
+
+## 1.30.0 - 2026-02-06
+
+### Features
+- `baoyu-cover-image`: add font dimension with 4 typography styles (clean, handwritten, serif, display); includes auto-selection rules, compatibility matrix, and `warm-flat` style preset.
+
+## 1.29.0 - 2026-02-06
+
+### Features
+- `baoyu-image-gen`: add EXTEND.md configuration support, including schema documentation and runtime preference loading in scripts (by @kingdomad).
+
+### Fixes
+- `baoyu-post-to-wechat`: fix duplicated title and ordered-list numbering in WeChat article publishing (by @NantesCheval).
+- `baoyu-url-to-markdown`: replace regex-only conversion with multi-strategy content extraction and Turndown conversion; improve noise filtering for Substack-style pages.
+
+## 1.28.4 - 2026-02-03
+
+### Features
+- `baoyu-markdown-to-html`: add author and description meta tags to generated HTML from YAML frontmatter; strip quotes from frontmatter values (supports both English and Chinese quotation marks).
+
+### Fixes
+- `baoyu-post-to-wechat`: remove extra empty lines after image paste; fix summary field timing to fill after content paste (prevents being overwritten).
+
+## 1.28.3 - 2026-02-03
+
+### Fixes
+- `baoyu-post-to-wechat`: fix placeholder matching issue where `WECHATIMGPH_1` incorrectly matched `WECHATIMGPH_10`.
+
+## 1.28.2 - 2026-02-03
+
+### Fixes
+- `baoyu-post-to-x`: reuse existing Chrome instance when available; fix placeholder matching issue where `XIMGPH_1` incorrectly matched `XIMGPH_10`; improve image sorting by placeholder index; use `execCommand` for more reliable placeholder deletion.
+
+## 1.28.1 - 2026-02-02
+
+### Refactor
+- `baoyu-article-illustrator`: simplify main SKILL.md by extracting detailed procedures to `workflow.md`; add Core Styles tier (vector, minimal-flat, sci-fi, hand-drawn, editorial, scene) for quick selection; add `vector-illustration` as recommended default style; add Illustration Purpose (information/visualization/imagination) for better type/style recommendations; add default composition requirements, character rendering guidelines, and text styling rules to prompt construction.
+
 ## 1.28.0 - 2026-02-01

 ### Features
@@ -2,6 +2,62 @@

 [English](./CHANGELOG.md) | 中文

+## 1.30.3 - 2026-02-06
+
+### 重构
+- `baoyu-article-illustrator`：优化 SKILL.md 从 197 行精简至 150 行（减少 24%）；采用渐进式披露模式，主文件提供简洁概览，详细内容通过引用文件提供。
+
+## 1.30.2 - 2026-02-06
+
+### 重构
+- `baoyu-cover-image`：优化 SKILL.md 从 532 行精简至 233 行（减少 56%）；将参考图片处理流程提取到 `references/workflow/reference-images.md`；画廊改为纯值表格并链接到详细参考文件。
+
+## 1.30.1 - 2026-02-06
+
+### 新功能
+- `baoyu-image-gen`：新增 OpenAI GPT Image edits 支持参考图片（`--ref`）；提供 ref 时自动选择 Google 或 OpenAI。
+
+### 修复
+- `baoyu-image-gen`：将 ref 相关警告改为明确错误提示；新增参考图片验证。
+- `baoyu-cover-image`：增强参考图片分析，使用深度提取模板；要求 MUST INCORPORATE 章节以包含具体可复现的视觉元素。
+
+## 1.30.0 - 2026-02-06
+
+### 新功能
+- `baoyu-cover-image`：新增字体维度，支持 4 种字体风格（clean、handwritten、serif、display）；包含自动选择规则、兼容性矩阵和 `warm-flat` 风格预设。
+
+## 1.29.0 - 2026-02-06
+
+### 新功能
+- `baoyu-image-gen`：新增 EXTEND.md 配置支持，补充配置 schema 文档并在脚本运行时读取偏好设置 (by @kingdomad)。
+
+### 修复
+- `baoyu-post-to-wechat`：修复公众号文章发布时标题和有序列表编号重复问题 (by @NantesCheval)。
+- `baoyu-url-to-markdown`：将正则转换升级为多策略正文抽取 + Turndown 转换，提升 Substack 类页面的噪声过滤能力。
+
+## 1.28.4 - 2026-02-03
+
+### 新功能
+- `baoyu-markdown-to-html`：从 YAML frontmatter 生成 author 和 description meta 标签；自动去除 frontmatter 值两端的引号（支持中英文引号）。
+
+### 修复
+- `baoyu-post-to-wechat`：移除图片粘贴后产生的多余空行；修复摘要填充时机，改为内容粘贴后填写（避免被覆盖）。
+
+## 1.28.3 - 2026-02-03
+
+### 修复
+- `baoyu-post-to-wechat`：修复占位符匹配问题（`WECHATIMGPH_1` 错误匹配 `WECHATIMGPH_10`）。
+
+## 1.28.2 - 2026-02-03
+
+### 修复
+- `baoyu-post-to-x`：复用已有 Chrome 实例；修复占位符匹配问题（`XIMGPH_1` 错误匹配 `XIMGPH_10`）；改进图片按占位符序号排序；使用 `execCommand` 提高占位符删除可靠性。
+
+## 1.28.1 - 2026-02-02
+
+### 重构
+- `baoyu-article-illustrator`：简化主 SKILL.md，将详细步骤提取到 `workflow.md`；新增 Core Styles 快速选择层（vector、minimal-flat、sci-fi、hand-drawn、editorial、scene）；新增 `vector-illustration` 作为推荐默认风格；新增插图目的（information/visualization/imagination）以优化类型/风格推荐；在提示词构建中新增默认构图要求、人物渲染指南和文本样式规则。
+
 ## 1.28.0 - 2026-02-01

 ### 新功能
@@ -11,161 +11,41 @@ Analyze articles, identify illustration positions, generate images with Type ×

 | Dimension | Controls | Examples |
 |-----------|----------|----------|
-| **Type** | Information structure, layout | infographic, scene, flowchart, comparison, framework, timeline |
-| **Style** | Visual aesthetics, mood | notion, warm, minimal, blueprint, watercolor, elegant |
+| **Type** | Information structure | infographic, scene, flowchart, comparison, framework, timeline |
+| **Style** | Visual aesthetics | notion, warm, minimal, blueprint, watercolor, elegant |

-Type × Style can be freely combined. Example: `--type infographic --style blueprint`
+Combine freely: `--type infographic --style blueprint`

-## Type Gallery
+## Types

 | Type | Best For |
 |------|----------|
-| `infographic` | Data, metrics, technical articles |
-| `scene` | Narratives, personal stories, emotional content |
-| `flowchart` | Tutorials, workflows, processes |
-| `comparison` | Side-by-side, before/after, options |
-| `framework` | Methodologies, models, architecture |
-| `timeline` | History, progress, evolution |
+| `infographic` | Data, metrics, technical |
+| `scene` | Narratives, emotional |
+| `flowchart` | Processes, workflows |
+| `comparison` | Side-by-side, options |
+| `framework` | Models, architecture |
+| `timeline` | History, evolution |

-## Style Gallery
+## Styles

-| Style | Best For |
-|-------|----------|
-| `notion` (Default) | Knowledge sharing, SaaS, productivity |
-| `elegant` | Business, thought leadership |
-| `warm` | Personal growth, lifestyle, education |
-| `minimal` | Philosophy, core concepts |
-| `blueprint` | Architecture, system design |
-| `watercolor` | Lifestyle, travel, creative |
-| `editorial` | Tech explainers, journalism |
-| `scientific` | Academic, technical research |
-
-Full styles: [references/styles.md](references/styles.md)
-
-## Auto Selection
-
-| Content Signals | Type | Style |
-|-----------------|------|-------|
-| API, metrics, data, numbers | infographic | blueprint, notion |
-| Story, emotion, journey | scene | warm, watercolor |
-| How-to, steps, workflow | flowchart | notion, minimal |
-| vs, pros/cons, before/after | comparison | notion, elegant |
-| Framework, model, architecture | framework | blueprint, notion |
-| History, timeline, progress | timeline | elegant, warm |
+See [references/styles.md](references/styles.md) for Core Styles, full gallery, and Type × Style compatibility.

 ## Workflow

-Copy this checklist and track progress:
-
 ```
-Progress:
- [ ] Step 1: Pre-check
-  - [ ] 1.5 Check preferences (EXTEND.md) ⛔ BLOCKING
-    - [ ] Found → load preferences → continue
-    - [ ] Not found → run first-time setup → MUST complete before other steps
-  - [ ] 1.0 Reference images ⚠️ (if provided)
-    - [ ] File path given → saved to references/ ✓
-    - [ ] No path → asked user OR extracted verbally
-  - [ ] 1.2-1.4 Config questions (1 AskUserQuestion, max 4 Qs)
- [ ] Step 2: Setup & Analyze
- [ ] Step 3: Confirm Settings (1 AskUserQuestion, max 4 Qs)
-  - [ ] Q1: Type ⚠️
-  - [ ] Q2: Density ⚠️ MUST ASK
-  - [ ] Q3: Style ⚠️
- [ ] Step 4: Generate Outline
- [ ] Step 5: Generate Images
-  - [ ] 5.1 Prompts created (references in frontmatter ONLY if files exist)
-  - [ ] 5.3 References verified before generation
+- [ ] Step 1: Pre-check (EXTEND.md, references, config)
+- [ ] Step 2: Analyze content
+- [ ] Step 3: Confirm settings (AskUserQuestion)
+- [ ] Step 4: Generate outline
+- [ ] Step 5: Generate images
 - [ ] Step 6: Finalize
 ```

---
-
 ### Step 1: Pre-check

-**1.0 Detect & Save Reference Images** ⚠️ REQUIRED if images provided
-
-Check if user provided reference images. Handle based on input type:
-
-| Input Type | Action |
-|------------|--------|
-| Image file path provided | Copy to `references/` subdirectory → can use `--ref` |
-| Image in conversation (no path) | **ASK user for file path** with AskUserQuestion |
-| User can't provide path | Extract style/palette verbally → append to prompts (NO frontmatter references) |
-
-**CRITICAL**: Only add `references` to prompt frontmatter if files are ACTUALLY SAVED to `references/` directory.
-
-**If user provides file path**:
-1. Copy to `references/NN-ref-{slug}.png`
-2. Create description: `references/NN-ref-{slug}.md`
-3. Verify files exist before proceeding
-
-**If user can't provide path** (extracted verbally):
-1. Analyze image visually, extract: colors, style, composition
-2. Create `references/extracted-style.md` with extracted info
-3. DO NOT add `references` to prompt frontmatter
-4. Instead, append extracted style/colors directly to prompt text
-
-**Description File Format** (only when file saved):
-```yaml
---
-ref_id: NN
-filename: NN-ref-{slug}.png
---
-[User's description or auto-generated description]
-```
-
-**Verification** (only for saved files):
-```
-Reference Images Saved:
- 01-ref-{slug}.png ✓ (can use --ref)
- 02-ref-{slug}.png ✓ (can use --ref)
-```
-
-**Or for extracted style**:
-```
-Reference Style Extracted (no file):
- Colors: #E8756D coral, #7ECFC0 mint...
- Style: minimal flat vector, clean lines...
-→ Will append to prompt text (not --ref)
-```
-
---
-
-**1.1 Determine Input Type**
-
-| Input | Output Directory | Next |
-|-------|------------------|------|
-| File path | Ask user (1.2) | → 1.2 |
-| Pasted content | `illustrations/{topic-slug}/` | → 1.4 |
-
-**Backup rule for pasted content**: If `source.md` exists in target directory, rename to `source-backup-YYYYMMDD-HHMMSS.md` before saving.
-
-**1.2-1.4 Configuration** (file path input only)
-
-Check preferences and existing state, then ask ALL needed questions in ONE AskUserQuestion call (max 4 questions).
-
-**Questions to include** (skip if preference exists or not applicable):
-
-| Question | When to Ask | Options |
-|----------|-------------|---------|
-| Output directory | No `default_output_dir` in EXTEND.md | `{article-dir}/`, `{article-dir}/imgs/` (Recommended), `{article-dir}/illustrations/`, `illustrations/{topic-slug}/` |
-| Existing images | Target dir has `.png/.jpg/.webp` files | `supplement`, `overwrite`, `regenerate` |
-| Article update | Always (file path input) | `update`, `copy` |
-
-**Preference Values** (if configured, skip asking):
-
-| `default_output_dir` | Path |
-|----------------------|------|
-| `same-dir` | `{article-dir}/` |
-| `imgs-subdir` | `{article-dir}/imgs/` |
-| `illustrations-subdir` | `{article-dir}/illustrations/` |
-| `independent` | `illustrations/{topic-slug}/` |
-
 **1.5 Load Preferences (EXTEND.md) ⛔ BLOCKING**

-**CRITICAL**: If EXTEND.md not found, MUST complete first-time setup before ANY other questions or steps. Do NOT proceed to reference images, do NOT ask about content, do NOT ask about type/style — ONLY complete the preferences setup first.
-
 ```bash
 test -f .baoyu-skills/baoyu-article-illustrator/EXTEND.md && echo "project"
 test -f "$HOME/.baoyu-skills/baoyu-article-illustrator/EXTEND.md" && echo "user"
@@ -173,296 +53,98 @@ test -f "$HOME/.baoyu-skills/baoyu-article-illustrator/EXTEND.md" && echo "user"

 | Result | Action |
 |--------|--------|
-| Found | Read, parse, display summary → Continue |
-| Not found | ⛔ **BLOCKING**: Run first-time setup ONLY ([references/config/first-time-setup.md](references/config/first-time-setup.md)) → Complete and save EXTEND.md → Then continue |
+| Found | Read, parse, display summary |
+| Not found | ⛔ Run [first-time-setup](references/config/first-time-setup.md) |

-**Supports**: Watermark | Preferred type/style | Custom styles | Language | Output directory
+Full procedures: [references/workflow.md](references/workflow.md#step-1-pre-check)

---
+### Step 2: Analyze

-### Step 2: Setup & Analyze
-
-**2.1 Analyze Content**
-
-| Analysis | Description |
-|----------|-------------|
+| Analysis | Output |
+|----------|--------|
 | Content type | Technical / Tutorial / Methodology / Narrative |
-| Core arguments | 2-5 main points to visualize |
-| Visual opportunities | Positions where illustrations add value |
-| Recommended type | Based on content signals |
-| Recommended density | Based on length and complexity |
+| Purpose | information / visualization / imagination |
+| Core arguments | 2-5 main points |
+| Positions | Where illustrations add value |

-**2.2 Extract Core Arguments**
+**CRITICAL**: Metaphors → visualize underlying concept, NOT literal image.

- Main thesis
- Key concepts reader needs
- Comparisons/contrasts
- Framework/model proposed
-
-**CRITICAL**: If article uses metaphors (e.g., "电锯切西瓜"), do NOT illustrate literally. Visualize the **underlying concept**.
-
-**2.3 Identify Positions**
-
-**Illustrate**:
- Core arguments (REQUIRED)
- Abstract concepts
- Data comparisons
- Processes, workflows
-
-**Do NOT Illustrate**:
- Metaphors literally
- Decorative scenes
- Generic illustrations
-
-**2.4 Analyze Reference Images** (if provided in Step 1.0)
-
-For each reference image:
-
-| Analysis | Description |
-|----------|-------------|
-| Visual characteristics | Style, colors, composition |
-| Content/subject | What the reference depicts |
-| Suitable positions | Which sections match this reference |
-| Style match | Which illustration types/styles align |
-| Usage recommendation | `direct` / `style` / `palette` |
-
-| Usage | When to Use |
-|-------|-------------|
-| `direct` | Reference matches desired output closely |
-| `style` | Extract visual style characteristics only |
-| `palette` | Extract color scheme only |
-
---
+Full procedures: [references/workflow.md](references/workflow.md#step-2-setup--analyze)

 ### Step 3: Confirm Settings ⚠️

-**Do NOT skip.** Use ONE AskUserQuestion call with max 4 questions. **Q1, Q2, Q3 are ALL REQUIRED.**
+**ONE AskUserQuestion, max 4 Qs. Q1-Q3 REQUIRED.**

-**Q1: Illustration Type** ⚠️ REQUIRED
- [Recommended based on analysis] (Recommended)
- infographic / scene / flowchart / comparison / framework / timeline / mixed
+| Q | Options |
+|---|---------|
+| **Q1: Type** | [Recommended], infographic, scene, flowchart, comparison, framework, timeline, mixed |
+| **Q2: Density** | minimal (1-2), balanced (3-5), per-section (Recommended), rich (6+) |
+| **Q3: Style** | [Recommended], minimal-flat, sci-fi, hand-drawn, editorial, scene, Other |
+| Q4: Language | When article language ≠ EXTEND.md setting |

-**Q2: Density** ⚠️ REQUIRED - DO NOT SKIP
- minimal (1-2) - Core concepts only
- balanced (3-5) - Major sections
- per-section - At least 1 per section/chapter (Recommended)
- rich (6+) - Comprehensive coverage
-
-**Q3: Style** ⚠️ REQUIRED (ALWAYS ask, even with preferred_style in EXTEND.md)
-
-If EXTEND.md has `preferred_style`:
- [Custom style name + brief description] (Recommended)
- [Top compatible built-in style 1]
- [Top compatible built-in style 2]
- [Top compatible built-in style 3]
-
-If no `preferred_style`:
- [Best compatible from matrix] (Recommended)
- [Other ✓✓ style 1]
- [Other ✓✓ style 2]
- [Other ✓ style]
-
-Style selection based on Type × Style compatibility matrix (references/styles.md).
-Full specs: `references/styles/<style>.md`
-
-**Q4** (only if source ≠ user language):
- Language: Source / User language
-
-**Display Reference Usage** (if references detected in Step 1.0):
-
-When presenting outline preview to user, show reference assignments:
-
-```
-Reference Images:
-| Ref | Filename | Recommended Usage |
-|-----|----------|-------------------|
-| 01 | 01-ref-diagram.png | direct → Illustration 1, 3 |
-| 02 | 02-ref-chart.png | palette → Illustration 2 |
-```
-
---
+Full procedures: [references/workflow.md](references/workflow.md#step-3-confirm-settings-)

 ### Step 4: Generate Outline

-Save as `outline.md`:
+Save `outline.md` with frontmatter (type, density, style, image_count) and entries:

 ```yaml
---
-type: infographic
-density: balanced
-style: blueprint
-image_count: 4
-references:                    # Only if references provided
-  - ref_id: 01
-    filename: 01-ref-diagram.png
-    description: "Technical diagram showing system architecture"
-  - ref_id: 02
-    filename: 02-ref-chart.png
-    description: "Color chart with brand palette"
---
-
 ## Illustration 1
-
-**Position**: [section] / [paragraph]
-**Purpose**: [why this helps]
-**Visual Content**: [what to show]
-**Type Application**: [how type applies]
-**References**: [01]                    # Optional: list ref_ids used
-**Reference Usage**: direct             # direct | style | palette
+**Position**: [section/paragraph]
+**Purpose**: [why]
+**Visual Content**: [what]
 **Filename**: 01-infographic-concept-name.png
-
-## Illustration 2
-...
 ```

-**Requirements**:
- Each position justified by content needs
- Type applied consistently
- Style reflected in descriptions
- Count matches density
- References assigned based on Step 2.4 analysis
-
---
+Full template: [references/workflow.md](references/workflow.md#step-4-generate-outline)

 ### Step 5: Generate Images

-**5.1 Create Prompts**
+1. Create prompts per [references/prompt-construction.md](references/prompt-construction.md)
+2. Select generation skill from available skills
+3. Process references (`direct`/`style`/`palette`)
+4. Apply watermark if EXTEND.md enabled
+5. Generate sequentially, retry once on failure

-Follow [references/prompt-construction.md](references/prompt-construction.md). Save to `prompts/illustration-{slug}.md`.
- **Backup rule**: If prompt file exists, rename to `prompts/illustration-{slug}-backup-YYYYMMDD-HHMMSS.md`
-
-**CRITICAL - References in Frontmatter**:
- Only add `references` field if files ACTUALLY EXIST in `references/` directory
- If style/palette was extracted verbally (no file), append info to prompt BODY instead
- Before writing frontmatter, verify: `test -f references/NN-ref-{slug}.png`
-
-**5.2 Select Generation Skill**
-
-Check available skills. If multiple, ask user.
-
-**5.3 Process References** ⚠️ REQUIRED if references saved in Step 1.0
-
-**DO NOT SKIP if user provided reference images.** For each illustration with references:
-
-1. **VERIFY files exist first**:
-   ```bash
-   test -f references/NN-ref-{slug}.png && echo "exists" || echo "MISSING"
-   ```
-   - If file MISSING but in frontmatter → ERROR, fix frontmatter or remove references field
-   - If file exists → proceed with processing
-
-2. Read prompt frontmatter for reference info
-3. Process based on usage type:
-
-| Usage | Action | Example |
-|-------|--------|---------|
-| `direct` | Add reference path to `--ref` parameter | `--ref references/01-ref-brand.png` |
-| `style` | Analyze reference, append style traits to prompt | "Style: clean lines, gradient backgrounds..." |
-| `palette` | Extract colors from reference, append to prompt | "Colors: #E8756D coral, #7ECFC0 mint..." |
-
-3. Check image generation skill capability:
-
-| Skill Supports `--ref` | Action |
-|------------------------|--------|
-| Yes (e.g., baoyu-image-gen with Google) | Pass reference images via `--ref` |
-| No | Convert to text description, append to prompt |
-
-**Verification**: Before generating, confirm reference processing:
-```
-Reference Processing:
- Illustration 1: using 01-ref-brand.png (direct) ✓
- Illustration 2: extracted palette from 02-ref-style.png ✓
-```
-
-**5.4 Apply Watermark** (if enabled)
-
-Add: `Include a subtle watermark "[content]" at [position].`
-
-**5.5 Generate**
-
-1. For each illustration:
-   - **Backup rule**: If image file exists, rename to `NN-{type}-{slug}-backup-YYYYMMDD-HHMMSS.png`
-   - If references with `direct` usage: include `--ref` parameter
-   - Generate image
-2. After each: "Generated X/N"
-3. On failure: retry once, then log and continue
-
---
+Full procedures: [references/workflow.md](references/workflow.md#step-5-generate-images)

 ### Step 6: Finalize

-**6.1 Update Article**
-
-Insert after corresponding paragraph:
-```markdown
-![description](illustrations/{slug}/NN-{type}-{slug}.png)
-```
-
-Alt text: concise description in article's language.
-
-**6.2 Output Summary**
+Insert `![description](path/NN-{type}-{slug}.png)` after paragraphs.

 ```
 Article Illustration Complete!
-
-Article: [path]
-Type: [type] | Density: [level] | Style: [style]
-Location: [directory]
+Article: [path] | Type: [type] | Density: [level] | Style: [style]
 Images: X/N generated
-
-Positions:
- 01-xxx.png → After "[Section]"
- 02-yyy.png → After "[Section]"
-
-[If failures]
-Failed:
- NN-zzz.png: [reason]
 ```

---
-
 ## Output Directory

 ```
 illustrations/{topic-slug}/
 ├── source-{slug}.{ext}
-├── references/                    # Only if references provided
-│   ├── 01-ref-{slug}.png
-│   ├── 01-ref-{slug}.md           # Description file (optional)
-│   └── ...
+├── references/           # if provided
 ├── outline.md
 ├── prompts/
-│   └── illustration-{slug}.md
 └── NN-{type}-{slug}.png
 ```

-**Slug**: 2-4 word topic in kebab-case.
-**Conflict**: Append `-YYYYMMDD-HHMMSS` if exists.
+**Slug**: 2-4 words, kebab-case. **Conflict**: append `-YYYYMMDD-HHMMSS`.

 ## Modification

 | Action | Steps |
 |--------|-------|
-| **Edit** | **Update prompt file FIRST** → Regenerate → Update reference |
-| **Add** | Identify position → Create prompt → Generate → Update outline → Insert |
-| **Delete** | Delete files → Remove reference → Update outline |
-
-**IMPORTANT**: When updating illustrations, ALWAYS update the prompt file (`prompts/illustration-{slug}.md`) FIRST before regenerating. This ensures:
-1. Changes are documented and reproducible
-2. The prompt reflects the new requirements
-3. Future regeneration uses the correct prompt
+| Edit | Update prompt → Regenerate → Update reference |
+| Add | Position → Prompt → Generate → Update outline → Insert |
+| Delete | Delete files → Remove reference → Update outline |

 ## References

 | File | Content |
 |------|---------|
-| [references/usage.md](references/usage.md) | Command syntax and options |
-| [references/styles.md](references/styles.md) | Style gallery & compatibility |
+| [references/workflow.md](references/workflow.md) | Detailed procedures |
+| [references/usage.md](references/usage.md) | Command syntax |
+| [references/styles.md](references/styles.md) | Style gallery |
 | [references/prompt-construction.md](references/prompt-construction.md) | Prompt templates |
-| `references/styles/<style>.md` | Full style specifications |
-| `references/config/preferences-schema.md` | EXTEND.md schema |
-| `references/config/first-time-setup.md` | First-time setup flow |
-
-## Extension Support
-
-Custom configurations via EXTEND.md. See **Step 1.5** for paths and supported options.
+| [references/config/first-time-setup.md](references/config/first-time-setup.md) | First-time setup |
@@ -49,6 +49,54 @@ STYLE (from reference):

 ---

+## Default Composition Requirements
+
+**Apply to ALL prompts by default**:
+
+| Requirement | Description |
+|-------------|-------------|
+| **Clean composition** | Simple layouts, no visual clutter |
+| **White space** | Generous margins, breathing room around elements |
+| **No complex backgrounds** | Solid colors or subtle gradients only, avoid busy textures |
+| **Centered or content-appropriate** | Main visual elements centered or positioned by content needs |
+| **Matching graphics** | Use graphic elements that align with content theme |
+| **Highlight core info** | White space draws attention to key information |
+
+**Add to ALL prompts**:
+> Clean composition with generous white space. Simple or no background. Main elements centered or positioned by content needs.
+
+---
+
+## Character Rendering
+
+When depicting people:
+
+| Guideline | Description |
+|-----------|-------------|
+| **Style** | Simplified cartoon silhouettes or symbolic expressions |
+| **Avoid** | Realistic human portrayals, detailed faces |
+| **Diversity** | Varied body types when showing multiple people |
+| **Emotion** | Express through posture and simple gestures |
+
+**Add to ALL prompts with human figures**:
+> Human figures: simplified stylized silhouettes or symbolic representations, not photorealistic.
+
+---
+
+## Text in Illustrations
+
+| Element | Guideline |
+|---------|-----------|
+| **Size** | Large, prominent, immediately readable |
+| **Style** | Handwritten fonts preferred for warmth |
+| **Content** | Concise keywords and core concepts only |
+| **Language** | Match article language |
+
+**Add to prompts with text**:
+> Text should be large and prominent with handwritten-style fonts. Keep minimal, focus on keywords.
+
+---
+
 ## Principles

 Good prompts must include:
@@ -80,6 +128,13 @@ STYLE: [style characteristics]
 ASPECT: 16:9
 ```

+**Infographic + vector-illustration**:
+```
+Flat vector illustration infographic. Clean black outlines on all elements.
+COLORS: Cream background (#F5F0E6), Coral Red (#E07A5F), Mint Green (#81B29A), Mustard Yellow (#F2CC8F)
+ELEMENTS: Geometric simplified icons, no gradients, playful decorative elements (dots, stars)
+```
+
 ### Scene

 ```
@@ -110,6 +165,13 @@ STYLE: [style characteristics]
 ASPECT: 16:9
 ```

+**Flowchart + vector-illustration**:
+```
+Flat vector flowchart with bold arrows and geometric step containers.
+COLORS: Cream background (#F5F0E6), steps in Coral/Mint/Mustard, black outlines
+ELEMENTS: Rounded rectangles, thick arrows, simple icons per step
+```
+
 ### Comparison

 ```
@@ -128,6 +190,13 @@ STYLE: [style characteristics]
 ASPECT: 16:9
 ```

+**Comparison + vector-illustration**:
+```
+Flat vector comparison with split layout. Clear visual separation.
+COLORS: Left side Coral (#E07A5F), Right side Mint (#81B29A), cream background
+ELEMENTS: Bold icons, black outlines, centered divider line
+```
+
 ### Framework

 ```
@@ -144,6 +213,13 @@ STYLE: [style characteristics]
 ASPECT: 16:9
 ```

+**Framework + vector-illustration**:
+```
+Flat vector framework diagram with geometric nodes and bold connectors.
+COLORS: Cream background (#F5F0E6), nodes in Coral/Mint/Mustard/Blue, black outlines
+ELEMENTS: Rounded rectangles or circles for nodes, thick connecting lines
+```
+
 ### Timeline

 ```
@@ -1,10 +1,28 @@
 # Style Reference

+## Core Styles
+
+Simplified style tier for quick selection:
+
+| Core Style | Maps To | Best For |
+|------------|---------|----------|
+| `vector` | vector-illustration | Knowledge articles, tutorials, tech content |
+| `minimal-flat` | notion | General, knowledge sharing, SaaS |
+| `sci-fi` | blueprint | AI, frontier tech, system design |
+| `hand-drawn` | sketch/warm | Relaxed, reflective, casual content |
+| `editorial` | editorial | Processes, data, journalism |
+| `scene` | warm/watercolor | Narratives, emotional, lifestyle |
+
+Use Core Styles for most cases. See full Style Gallery below for granular control.
+
+---
+
 ## Style Gallery

 | Style | Description | Best For |
 |-------|-------------|----------|
-| `notion` (Default) | Minimalist hand-drawn line art | Knowledge sharing, SaaS, productivity |
+| `vector-illustration` | Clean flat vector art with bold shapes | Knowledge articles, tutorials, tech content |
+| `notion` | Minimalist hand-drawn line art | Knowledge sharing, SaaS, productivity |
 | `elegant` | Refined, sophisticated | Business, thought leadership |
 | `warm` | Friendly, approachable | Personal growth, lifestyle, education |
 | `minimal` | Ultra-clean, zen-like | Philosophy, minimalism, core concepts |
@@ -12,19 +30,31 @@
 | `watercolor` | Soft artistic with natural warmth | Lifestyle, travel, creative |
 | `editorial` | Magazine-style infographic | Tech explainers, journalism |
 | `scientific` | Academic precise diagrams | Biology, chemistry, technical research |
+| `chalkboard` | Classroom chalk drawing style | Education, teaching, explanations |
+| `fantasy-animation` | Ghibli/Disney-inspired hand-drawn | Storybook, magical, emotional |
+| `flat` | Modern bold geometric shapes | Modern digital, contemporary |
+| `flat-doodle` | Cute flat with bold outlines | Cute, friendly, approachable |
+| `intuition-machine` | Technical briefing with aged paper | Technical briefings, academic |
+| `nature` | Organic earthy illustration | Environmental, wellness |
+| `pixel-art` | Retro 8-bit gaming aesthetic | Gaming, retro tech |
+| `playful` | Whimsical pastel doodles | Fun, casual, educational |
+| `retro` | 80s/90s neon geometric | 80s/90s nostalgic, bold |
+| `sketch` | Raw pencil notebook style | Brainstorming, creative exploration |
+| `sketch-notes` | Soft hand-drawn warm notes | Educational, warm notes |
+| `vintage` | Aged parchment historical | Historical, heritage |

 Full specifications: `references/styles/<style>.md`

 ## Type × Style Compatibility Matrix

-| | notion | warm | minimal | blueprint | watercolor | elegant | editorial | scientific |
-|---|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
-| infographic | ✓✓ | ✓ | ✓✓ | ✓✓ | ✓ | ✓✓ | ✓✓ | ✓✓ |
-| scene | ✓ | ✓✓ | ✓ | ✗ | ✓✓ | ✓ | ✓ | ✗ |
-| flowchart | ✓✓ | ✓ | ✓ | ✓✓ | ✗ | ✓ | ✓✓ | ✓ |
-| comparison | ✓✓ | ✓ | ✓✓ | ✓ | ✓ | ✓✓ | ✓✓ | ✓ |
-| framework | ✓✓ | ✓ | ✓✓ | ✓✓ | ✗ | ✓✓ | ✓ | ✓✓ |
-| timeline | ✓✓ | ✓ | ✓ | ✓ | ✓✓ | ✓✓ | ✓✓ | ✓ |
+| | vector-illustration | notion | warm | minimal | blueprint | watercolor | elegant | editorial | scientific |
+|---|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
+| infographic | ✓✓ | ✓✓ | ✓ | ✓✓ | ✓✓ | ✓ | ✓✓ | ✓✓ | ✓✓ |
+| scene | ✓ | ✓ | ✓✓ | ✓ | ✗ | ✓✓ | ✓ | ✓ | ✗ |
+| flowchart | ✓✓ | ✓✓ | ✓ | ✓ | ✓✓ | ✗ | ✓ | ✓✓ | ✓ |
+| comparison | ✓✓ | ✓✓ | ✓ | ✓✓ | ✓ | ✓ | ✓✓ | ✓✓ | ✓ |
+| framework | ✓✓ | ✓✓ | ✓ | ✓✓ | ✓✓ | ✗ | ✓✓ | ✓ | ✓✓ |
+| timeline | ✓ | ✓✓ | ✓ | ✓ | ✓ | ✓✓ | ✓✓ | ✓✓ | ✓ |

 ✓✓ = highly recommended | ✓ = compatible | ✗ = not recommended

@@ -32,30 +62,57 @@ Full specifications: `references/styles/<style>.md`

 | Type | Primary Style | Secondary Styles |
 |------|---------------|------------------|
-| infographic | blueprint | notion, editorial, scientific |
+| infographic | vector-illustration | notion, blueprint, editorial |
 | scene | warm | watercolor, elegant |
-| flowchart | notion | blueprint, editorial |
-| comparison | notion | elegant, editorial |
-| framework | blueprint | notion, scientific |
+| flowchart | vector-illustration | notion, blueprint |
+| comparison | vector-illustration | notion, elegant |
+| framework | blueprint | vector-illustration, notion |
 | timeline | elegant | warm, editorial |

 ## Auto Selection by Content Signals

 | Content Signals | Recommended Type | Recommended Style |
 |-----------------|------------------|-------------------|
-| API, metrics, data, comparison, numbers | infographic | blueprint, notion |
+| API, metrics, data, comparison, numbers | infographic | blueprint, vector-illustration |
+| Knowledge, concept, tutorial, learning, guide | infographic | vector-illustration, notion |
+| Tech, AI, programming, development, code | infographic | vector-illustration, blueprint |
+| How-to, steps, workflow, process, tutorial | flowchart | vector-illustration, notion |
+| Framework, model, architecture, principles | framework | blueprint, vector-illustration |
+| vs, pros/cons, before/after, alternatives | comparison | vector-illustration, notion |
 | Story, emotion, journey, experience, personal | scene | warm, watercolor |
-| How-to, steps, workflow, process, tutorial | flowchart | notion, minimal |
-| vs, pros/cons, before/after, alternatives | comparison | notion, elegant |
-| Framework, model, architecture, principles | framework | blueprint, notion |
 | History, timeline, progress, evolution | timeline | elegant, warm |
-| Knowledge, concept, productivity, SaaS, tool | infographic | notion |
+| Productivity, SaaS, tool, app, software | infographic | notion, vector-illustration |
 | Business, professional, strategy, corporate | framework | elegant |
 | Biology, chemistry, medical, scientific | infographic | scientific |
 | Explainer, journalism, magazine, investigation | infographic | editorial |

 ## Style Characteristics by Type

+### infographic + vector-illustration
+- Clean flat vector shapes, bold geometric forms
+- Vibrant but harmonious color palette
+- Clear visual hierarchy with icons and labels
+- Modern, professional, highly readable
+- Perfect for knowledge articles and tutorials
+
+### flowchart + vector-illustration
+- Bold arrows and connectors
+- Distinct step containers with icons
+- Clean progression flow
+- High contrast for readability
+
+### comparison + vector-illustration
+- Split layout with clear visual separation
+- Bold iconography for each side
+- Color-coded distinctions
+- Easy at-a-glance comparison
+
+### framework + vector-illustration
+- Geometric node representations
+- Clear hierarchical structure
+- Bold connecting lines
+- Modern system diagram aesthetic
+
 ### infographic + blueprint
 - Technical precision, schematic lines
 - Grid-based layout, clear zones
@@ -0,0 +1,355 @@
+# Detailed Workflow Procedures
+
+## Step 1: Pre-check
+
+### 1.0 Detect & Save Reference Images ⚠️ REQUIRED if images provided
+
+Check if user provided reference images. Handle based on input type:
+
+| Input Type | Action |
+|------------|--------|
+| Image file path provided | Copy to `references/` subdirectory → can use `--ref` |
+| Image in conversation (no path) | **ASK user for file path** with AskUserQuestion |
+| User can't provide path | Extract style/palette verbally → append to prompts (NO frontmatter references) |
+
+**CRITICAL**: Only add `references` to prompt frontmatter if files are ACTUALLY SAVED to `references/` directory.
+
+**If user provides file path**:
+1. Copy to `references/NN-ref-{slug}.png`
+2. Create description: `references/NN-ref-{slug}.md`
+3. Verify files exist before proceeding
+
+**If user can't provide path** (extracted verbally):
+1. Analyze image visually, extract: colors, style, composition
+2. Create `references/extracted-style.md` with extracted info
+3. DO NOT add `references` to prompt frontmatter
+4. Instead, append extracted style/colors directly to prompt text
+
+**Description File Format** (only when file saved):
+```yaml
+---
+ref_id: NN
+filename: NN-ref-{slug}.png
+---
+[User's description or auto-generated description]
+```
+
+**Verification** (only for saved files):
+```
+Reference Images Saved:
+- 01-ref-{slug}.png ✓ (can use --ref)
+- 02-ref-{slug}.png ✓ (can use --ref)
+```
+
+**Or for extracted style**:
+```
+Reference Style Extracted (no file):
+- Colors: #E8756D coral, #7ECFC0 mint...
+- Style: minimal flat vector, clean lines...
+→ Will append to prompt text (not --ref)
+```
+
+---
+
+### 1.1 Determine Input Type
+
+| Input | Output Directory | Next |
+|-------|------------------|------|
+| File path | Ask user (1.2) | → 1.2 |
+| Pasted content | `illustrations/{topic-slug}/` | → 1.4 |
+
+**Backup rule for pasted content**: If `source.md` exists in target directory, rename to `source-backup-YYYYMMDD-HHMMSS.md` before saving.
+
+### 1.2-1.4 Configuration (file path input only)
+
+Check preferences and existing state, then ask ALL needed questions in ONE AskUserQuestion call (max 4 questions).
+
+**Questions to include** (skip if preference exists or not applicable):
+
+| Question | When to Ask | Options |
+|----------|-------------|---------|
+| Output directory | No `default_output_dir` in EXTEND.md | `{article-dir}/`, `{article-dir}/imgs/` (Recommended), `{article-dir}/illustrations/`, `illustrations/{topic-slug}/` |
+| Existing images | Target dir has `.png/.jpg/.webp` files | `supplement`, `overwrite`, `regenerate` |
+| Article update | Always (file path input) | `update`, `copy` |
+
+**Preference Values** (if configured, skip asking):
+
+| `default_output_dir` | Path |
+|----------------------|------|
+| `same-dir` | `{article-dir}/` |
+| `imgs-subdir` | `{article-dir}/imgs/` |
+| `illustrations-subdir` | `{article-dir}/illustrations/` |
+| `independent` | `illustrations/{topic-slug}/` |
+
+### 1.5 Load Preferences (EXTEND.md) ⛔ BLOCKING
+
+**CRITICAL**: If EXTEND.md not found, MUST complete first-time setup before ANY other questions or steps. Do NOT proceed to reference images, do NOT ask about content, do NOT ask about type/style — ONLY complete the preferences setup first.
+
+```bash
+test -f .baoyu-skills/baoyu-article-illustrator/EXTEND.md && echo "project"
+test -f "$HOME/.baoyu-skills/baoyu-article-illustrator/EXTEND.md" && echo "user"
+```
+
+| Result | Action |
+|--------|--------|
+| Found | Read, parse, display summary → Continue |
+| Not found | ⛔ **BLOCKING**: Run first-time setup ONLY ([config/first-time-setup.md](config/first-time-setup.md)) → Complete and save EXTEND.md → Then continue |
+
+**Supports**: Watermark | Preferred type/style | Custom styles | Language | Output directory
+
+---
+
+## Step 2: Setup & Analyze
+
+### 2.1 Analyze Content
+
+| Analysis | Description |
+|----------|-------------|
+| Content type | Technical / Tutorial / Methodology / Narrative |
+| Illustration purpose | information / visualization / imagination |
+| Core arguments | 2-5 main points to visualize |
+| Visual opportunities | Positions where illustrations add value |
+| Recommended type | Based on content signals and purpose |
+| Recommended density | Based on length and complexity |
+
+### 2.2 Extract Core Arguments
+
+- Main thesis
+- Key concepts reader needs
+- Comparisons/contrasts
+- Framework/model proposed
+
+**CRITICAL**: If article uses metaphors (e.g., "电锯切西瓜"), do NOT illustrate literally. Visualize the **underlying concept**.
+
+### 2.3 Identify Positions
+
+**Illustrate**:
+- Core arguments (REQUIRED)
+- Abstract concepts
+- Data comparisons
+- Processes, workflows
+
+**Do NOT Illustrate**:
+- Metaphors literally
+- Decorative scenes
+- Generic illustrations
+
+### 2.4 Analyze Reference Images (if provided in Step 1.0)
+
+For each reference image:
+
+| Analysis | Description |
+|----------|-------------|
+| Visual characteristics | Style, colors, composition |
+| Content/subject | What the reference depicts |
+| Suitable positions | Which sections match this reference |
+| Style match | Which illustration types/styles align |
+| Usage recommendation | `direct` / `style` / `palette` |
+
+| Usage | When to Use |
+|-------|-------------|
+| `direct` | Reference matches desired output closely |
+| `style` | Extract visual style characteristics only |
+| `palette` | Extract color scheme only |
+
+---
+
+## Step 3: Confirm Settings ⚠️
+
+**Do NOT skip.** Use ONE AskUserQuestion call with max 4 questions. **Q1, Q2, Q3 are ALL REQUIRED.**
+
+### Q1: Illustration Type ⚠️ REQUIRED
+- [Recommended based on analysis] (Recommended)
+- infographic / scene / flowchart / comparison / framework / timeline / mixed
+
+### Q2: Density ⚠️ REQUIRED - DO NOT SKIP
+- minimal (1-2) - Core concepts only
+- balanced (3-5) - Major sections
+- per-section - At least 1 per section/chapter (Recommended)
+- rich (6+) - Comprehensive coverage
+
+### Q3: Style ⚠️ REQUIRED (ALWAYS ask, even with preferred_style in EXTEND.md)
+
+If EXTEND.md has `preferred_style`:
+- [Custom style name + brief description] (Recommended)
+- [Top compatible core style 1]
+- [Top compatible core style 2]
+- Other (see full Style Gallery)
+
+If no `preferred_style` (present Core Styles first):
+- [Best compatible core style] (Recommended)
+- [Other compatible core style 1]
+- [Other compatible core style 2]
+- Other (see full Style Gallery)
+
+**Core Styles** (simplified selection):
+
+| Core Style | Best For |
+|------------|----------|
+| `minimal-flat` | General, knowledge sharing, SaaS |
+| `sci-fi` | AI, frontier tech, system design |
+| `hand-drawn` | Relaxed, reflective, casual |
+| `editorial` | Processes, data, journalism |
+| `scene` | Narratives, emotional, lifestyle |
+
+Style selection based on Type × Style compatibility matrix (styles.md).
+Full specs: `styles/<style>.md`
+
+### Q4: Image Text Language ⚠️ REQUIRED when article language ≠ EXTEND.md `language`
+
+Detect article language from content. If different from EXTEND.md `language` setting, MUST ask:
+- Article language (match article content) (Recommended)
+- EXTEND.md language (user's general preference)
+
+**Skip only if**: Article language matches EXTEND.md `language`, or EXTEND.md has no `language` setting.
+
+### Display Reference Usage (if references detected in Step 1.0)
+
+When presenting outline preview to user, show reference assignments:
+
+```
+Reference Images:
+| Ref | Filename | Recommended Usage |
+|-----|----------|-------------------|
+| 01 | 01-ref-diagram.png | direct → Illustration 1, 3 |
+| 02 | 02-ref-chart.png | palette → Illustration 2 |
+```
+
+---
+
+## Step 4: Generate Outline
+
+Save as `outline.md`:
+
+```yaml
+---
+type: infographic
+density: balanced
+style: blueprint
+image_count: 4
+references:                    # Only if references provided
+  - ref_id: 01
+    filename: 01-ref-diagram.png
+    description: "Technical diagram showing system architecture"
+  - ref_id: 02
+    filename: 02-ref-chart.png
+    description: "Color chart with brand palette"
+---
+
+## Illustration 1
+
+**Position**: [section] / [paragraph]
+**Purpose**: [why this helps]
+**Visual Content**: [what to show]
+**Type Application**: [how type applies]
+**References**: [01]                    # Optional: list ref_ids used
+**Reference Usage**: direct             # direct | style | palette
+**Filename**: 01-infographic-concept-name.png
+
+## Illustration 2
+...
+```
+
+**Requirements**:
+- Each position justified by content needs
+- Type applied consistently
+- Style reflected in descriptions
+- Count matches density
+- References assigned based on Step 2.4 analysis
+
+---
+
+## Step 5: Generate Images
+
+### 5.1 Create Prompts
+
+Follow [prompt-construction.md](prompt-construction.md). Save to `prompts/illustration-{slug}.md`.
+- **Backup rule**: If prompt file exists, rename to `prompts/illustration-{slug}-backup-YYYYMMDD-HHMMSS.md`
+
+**CRITICAL - References in Frontmatter**:
+- Only add `references` field if files ACTUALLY EXIST in `references/` directory
+- If style/palette was extracted verbally (no file), append info to prompt BODY instead
+- Before writing frontmatter, verify: `test -f references/NN-ref-{slug}.png`
+
+### 5.2 Select Generation Skill
+
+Check available skills. If multiple, ask user.
+
+### 5.3 Process References ⚠️ REQUIRED if references saved in Step 1.0
+
+**DO NOT SKIP if user provided reference images.** For each illustration with references:
+
+1. **VERIFY files exist first**:
+   ```bash
+   test -f references/NN-ref-{slug}.png && echo "exists" || echo "MISSING"
+   ```
+   - If file MISSING but in frontmatter → ERROR, fix frontmatter or remove references field
+   - If file exists → proceed with processing
+
+2. Read prompt frontmatter for reference info
+3. Process based on usage type:
+
+| Usage | Action | Example |
+|-------|--------|---------|
+| `direct` | Add reference path to `--ref` parameter | `--ref references/01-ref-brand.png` |
+| `style` | Analyze reference, append style traits to prompt | "Style: clean lines, gradient backgrounds..." |
+| `palette` | Extract colors from reference, append to prompt | "Colors: #E8756D coral, #7ECFC0 mint..." |
+
+4. Check image generation skill capability:
+
+| Skill Supports `--ref` | Action |
+|------------------------|--------|
+| Yes (e.g., baoyu-image-gen with Google) | Pass reference images via `--ref` |
+| No | Convert to text description, append to prompt |
+
+**Verification**: Before generating, confirm reference processing:
+```
+Reference Processing:
+- Illustration 1: using 01-ref-brand.png (direct) ✓
+- Illustration 2: extracted palette from 02-ref-style.png ✓
+```
+
+### 5.4 Apply Watermark (if enabled)
+
+Add: `Include a subtle watermark "[content]" at [position].`
+
+### 5.5 Generate
+
+1. For each illustration:
+   - **Backup rule**: If image file exists, rename to `NN-{type}-{slug}-backup-YYYYMMDD-HHMMSS.md`
+   - If references with `direct` usage: include `--ref` parameter
+   - Generate image
+2. After each: "Generated X/N"
+3. On failure: retry once, then log and continue
+
+---
+
+## Step 6: Finalize
+
+### 6.1 Update Article
+
+Insert after corresponding paragraph:
+```markdown
+![description](illustrations/{slug}/NN-{type}-{slug}.png)
+```
+
+Alt text: concise description in article's language.
+
+### 6.2 Output Summary
+
+```
+Article Illustration Complete!
+
+Article: [path]
+Type: [type] | Density: [level] | Style: [style]
+Location: [directory]
+Images: X/N generated
+
+Positions:
+- 01-xxx.png → After "[Section]"
+- 02-yyy.png → After "[Section]"
+
+[If failures]
+Failed:
+- NN-zzz.png: [reason]
+```
@@ -10,156 +10,94 @@ Generate elegant cover images for articles with 5-dimensional customization.
 ## Usage

 ```bash
-# Auto-select all dimensions based on content
+# Auto-select dimensions based on content
 /baoyu-cover-image path/to/article.md

-# Quick mode: skip confirmation, use auto-selection
+# Quick mode: skip confirmation
 /baoyu-cover-image article.md --quick

-# Specify dimensions (new 5D system)
+# Specify dimensions
 /baoyu-cover-image article.md --type conceptual --palette warm --rendering flat-vector
-/baoyu-cover-image article.md --text title-subtitle --mood bold

-# Style presets (backward-compatible shorthand for palette + rendering)
+# Style presets (shorthand for palette + rendering)
 /baoyu-cover-image article.md --style blueprint
-/baoyu-cover-image article.md --style blueprint --rendering hand-drawn  # override rendering
-
-# Visual only (no title text)
-/baoyu-cover-image article.md --no-title
-
-# Direct content input
-/baoyu-cover-image
-[paste content]
-
-# Direct input with options
-/baoyu-cover-image --palette mono --rendering digital --aspect 1:1 --quick
-[paste content]

 # With reference images
 /baoyu-cover-image article.md --ref style-ref.png
-/baoyu-cover-image article.md --ref ref1.png ref2.png --quick
+
+# Direct content input
+/baoyu-cover-image --palette mono --aspect 1:1 --quick
+[paste content]
 ```

 ## Options

 | Option | Description |
 |--------|-------------|
-| `--type <name>` | Cover type: hero, conceptual, typography, metaphor, scene, minimal |
-| `--palette <name>` | Color palette: warm, elegant, cool, dark, earth, vivid, pastel, mono, retro |
-| `--rendering <name>` | Rendering style: flat-vector, hand-drawn, painterly, digital, pixel, chalk |
-| `--style <name>` | Preset shorthand (expands to palette + rendering, see [Style Presets](references/style-presets.md)) |
-| `--text <level>` | Text density: none, title-only, title-subtitle, text-rich |
-| `--mood <level>` | Emotional intensity: subtle, balanced, bold |
+| `--type <name>` | hero, conceptual, typography, metaphor, scene, minimal |
+| `--palette <name>` | warm, elegant, cool, dark, earth, vivid, pastel, mono, retro |
+| `--rendering <name>` | flat-vector, hand-drawn, painterly, digital, pixel, chalk |
+| `--style <name>` | Preset shorthand (see [Style Presets](references/style-presets.md)) |
+| `--text <level>` | none, title-only, title-subtitle, text-rich |
+| `--mood <level>` | subtle, balanced, bold |
+| `--font <name>` | clean, handwritten, serif, display |
 | `--aspect <ratio>` | 16:9 (default), 2.35:1, 4:3, 3:2, 1:1, 3:4 |
 | `--lang <code>` | Title language (en, zh, ja, etc.) |
 | `--no-title` | Alias for `--text none` |
-| `--quick` | Skip confirmation, use auto-selection for missing dimensions |
+| `--quick` | Skip confirmation, use auto-selection |
 | `--ref <files...>` | Reference images for style/composition guidance |

 ## Five Dimensions

-| Dimension | Controls | Values | Default |
-|-----------|----------|--------|---------|
-| **Type** | Visual composition, information structure | hero, conceptual, typography, metaphor, scene, minimal | auto |
-| **Palette** | Colors, color scheme, decorative hints | warm, elegant, cool, dark, earth, vivid, pastel, mono, retro | auto |
-| **Rendering** | Line quality, texture, depth, element style | flat-vector, hand-drawn, painterly, digital, pixel, chalk | auto |
-| **Text** | Text density, information hierarchy | none, title-only, title-subtitle, text-rich | title-only |
-| **Mood** | Emotional intensity, visual weight | subtle, balanced, bold | balanced |
+| Dimension | Values | Default |
+|-----------|--------|---------|
+| **Type** | hero, conceptual, typography, metaphor, scene, minimal | auto |
+| **Palette** | warm, elegant, cool, dark, earth, vivid, pastel, mono, retro | auto |
+| **Rendering** | flat-vector, hand-drawn, painterly, digital, pixel, chalk | auto |
+| **Text** | none, title-only, title-subtitle, text-rich | title-only |
+| **Mood** | subtle, balanced, bold | balanced |
+| **Font** | clean, handwritten, serif, display | clean |

-Dimensions can be freely combined. Auto-selection rules: [references/auto-selection.md](references/auto-selection.md)
+Auto-selection rules: [references/auto-selection.md](references/auto-selection.md)

-## Type Gallery
+## Galleries

-| Type | Description | Best For |
-|------|-------------|----------|
-| `hero` | Large visual impact, title overlay | Product launch, brand promotion, major announcements |
-| `conceptual` | Concept visualization, abstract core ideas | Technical articles, methodology, architecture design |
-| `typography` | Text-focused layout, prominent title | Opinion pieces, quotes, insights |
-| `metaphor` | Visual metaphor, concrete expressing abstract | Philosophy, growth, personal development |
-| `scene` | Atmospheric scene, narrative feel | Stories, travel, lifestyle |
-| `minimal` | Minimalist composition, generous whitespace | Zen, focus, core concepts |
+**Types**: hero, conceptual, typography, metaphor, scene, minimal
+→ Details: [references/types.md](references/types.md)

-Type composition details: [references/types.md](references/types.md)
+**Palettes**: warm, elegant, cool, dark, earth, vivid, pastel, mono, retro
+→ Details: [references/palettes/](references/palettes/)

-## Palette Gallery
+**Renderings**: flat-vector, hand-drawn, painterly, digital, pixel, chalk
+→ Details: [references/renderings/](references/renderings/)

-| Palette | Vibe | Primary Colors |
-|---------|------|----------------|
-| `warm` | Friendly, approachable | Orange, golden yellow, terracotta |
-| `elegant` | Sophisticated, refined | Soft coral, muted teal, dusty rose |
-| `cool` | Technical, professional | Engineering blue, navy, cyan |
-| `dark` | Cinematic, premium | Electric purple, cyan, magenta |
-| `earth` | Natural, organic | Forest green, sage, earth brown |
-| `vivid` | Energetic, bold | Bright red, neon green, electric blue |
-| `pastel` | Gentle, whimsical | Soft pink, mint, lavender |
-| `mono` | Clean, focused | Black, near-black, white |
-| `retro` | Nostalgic, vintage | Muted orange, dusty pink, maroon |
+**Text Levels**: none (pure visual) | title-only (default) | title-subtitle | text-rich (with tags)
+→ Details: [references/dimensions/text.md](references/dimensions/text.md)

-Palette definitions: [references/palettes/](references/palettes/)
+**Mood Levels**: subtle (low contrast) | balanced (default) | bold (high contrast)
+→ Details: [references/dimensions/mood.md](references/dimensions/mood.md)

-## Rendering Gallery
-
-| Rendering | Description | Key Characteristics |
-|-----------|-------------|---------------------|
-| `flat-vector` | Clean modern vector | Uniform outlines, flat fills, geometric icons |
-| `hand-drawn` | Sketchy organic illustration | Imperfect strokes, paper texture, doodles |
-| `painterly` | Soft watercolor/paint | Brush strokes, color bleeds, soft edges |
-| `digital` | Polished modern digital | Precise edges, subtle gradients, UI components |
-| `pixel` | Retro 8-bit pixel art | Pixel grid, dithering, chunky shapes |
-| `chalk` | Chalk on blackboard | Chalk strokes, dust effects, board texture |
-
-Rendering definitions: [references/renderings/](references/renderings/)
-
-## Text & Mood
-
-| Text Level | Title | Subtitle | Tags | Use Case |
-|------------|:-----:|:--------:|:----:|----------|
-| `none` | - | - | - | Pure visual, no text |
-| `title-only` | ✓ | - | - | Simple headline (default) |
-| `title-subtitle` | ✓ | ✓ | - | Title + supporting context |
-| `text-rich` | ✓ | ✓ | ✓ (2-4) | Information-dense |
-
-| Mood | Contrast | Saturation | Weight | Use Case |
-|------|:--------:|:----------:|:------:|----------|
-| `subtle` | Low | Muted | Light | Corporate, thought leadership |
-| `balanced` | Medium | Normal | Medium | General articles (default) |
-| `bold` | High | Vivid | Heavy | Announcements, promotions |
-
-Full guides: [references/dimensions/text.md](references/dimensions/text.md) | [references/dimensions/mood.md](references/dimensions/mood.md)
-
-## Style Presets & Compatibility
-
- **Style Presets**: `--style X` expands to palette + rendering. See [references/style-presets.md](references/style-presets.md)
- **Compatibility Matrices**: Palette×Rendering, Type×Rendering, Type×Text, Type×Mood. See [references/compatibility.md](references/compatibility.md)
-  - ✓✓ = highly recommended | ✓ = compatible | ✗ = not recommended
+**Fonts**: clean (sans-serif) | handwritten | serif | display (bold decorative)
+→ Details: [references/dimensions/font.md](references/dimensions/font.md)

 ## File Structure

-Output directory depends on `default_output_dir` preference:
-
-| Preference | Output Path |
-|------------|-------------|
-| `same-dir` | `{article-dir}/` |
-| `imgs-subdir` | `{article-dir}/imgs/` |
-| `independent` (default) | `cover-image/{topic-slug}/` |
-| Pasted content | `cover-image/{topic-slug}/` (always) |
+Output directory per `default_output_dir` preference:
+- `same-dir`: `{article-dir}/`
+- `imgs-subdir`: `{article-dir}/imgs/`
+- `independent` (default): `cover-image/{topic-slug}/`

 ```
 <output-dir>/
-├── source-{slug}.{ext}    # Source files (text, images, etc.)
+├── source-{slug}.{ext}    # Source files
 ├── refs/                  # Reference images (if provided)
 │   ├── ref-01-{slug}.{ext}
-│   ├── ref-01-{slug}.md   # Description file (optional)
-│   ├── ref-02-{slug}.{ext}
-│   ├── ref-02-{slug}.md   # Description file (optional)
-│   └── extracted-style.md # Verbally extracted style (if no file path)
+│   └── ref-01-{slug}.md   # Description file
 ├── prompts/cover.md       # Generation prompt
 └── cover.png              # Output image
 ```

-**Slug**: Extract main topic (2-4 words, kebab-case). Example: "The Future of AI" → `future-of-ai`
-**Conflict**: If directory exists, append timestamp: `{topic-slug}-YYYYMMDD-HHMMSS`
-**Source Files**: Copy all sources with naming `source-{slug}.{ext}` (multiple supported)
+**Slug**: 2-4 words, kebab-case. Conflict: append `-YYYYMMDD-HHMMSS`

 ## Workflow

@@ -168,20 +106,10 @@ Output directory depends on `default_output_dir` preference:
 ```
 Cover Image Progress:
 - [ ] Step 0: Check preferences (EXTEND.md) ⛔ BLOCKING
-  - [ ] Found → load preferences → continue
-  - [ ] Not found → run first-time setup → MUST complete before Step 1
- [ ] Step 1: Analyze content + determine output directory
-  - [ ] 1.1 Reference images ⚠️ (if provided)
-    - [ ] File path given → saved to refs/ ✓
-    - [ ] No path → asked user OR extracted verbally
-  - [ ] 1.2 Output directory determined
- [ ] Step 2: Confirm options (5 dimensions) ⚠️ REQUIRED unless --quick or all specified
+- [ ] Step 1: Analyze content + save refs + determine output dir
+- [ ] Step 2: Confirm options (6 dimensions) ⚠️ unless --quick
 - [ ] Step 3: Create prompt
-  - [ ] References in prompt ONLY if files exist in refs/
-  - [ ] Extracted style/palette appended to prompt body (if no file)
 - [ ] Step 4: Generate image
-  - [ ] 4.1 References verified before generation
-  - [ ] 4.2 Pass refs via --ref if skill supports AND files exist
 - [ ] Step 5: Completion report
 ```

@@ -189,240 +117,66 @@ Cover Image Progress:

 ```
 Input → [Step 0: Preferences] ─┬─ Found → Continue
-                               │
-                               └─ Not found → First-Time Setup ⛔ BLOCKING
-                                              │
-                                              └─ Complete setup → Save EXTEND.md → Continue
-                                                                                      │
-        ┌───────────────────────────────────────────────────────────────────────────┘
+                               └─ Not found → First-Time Setup ⛔ BLOCKING → Save EXTEND.md → Continue
        ↓
-Analyze + Save Refs → [Output Dir ⚠️] → [Confirm: 5 Dimensions] → Prompt → Generate → Complete
-                                                 ↓
-                                        (skip if --quick or all specified)
+Analyze + Save Refs → [Output Dir] → [Confirm: 6 Dimensions] → Prompt → Generate → Complete
+                                              ↓
+                                     (skip if --quick or all specified)
 ```

-### Step 0: Load Preferences (EXTEND.md) ⛔ BLOCKING
-
-**Purpose**: Load user preferences or run first-time setup.
-
-**CRITICAL**: If EXTEND.md not found, MUST complete first-time setup before ANY other questions or steps. Do NOT proceed to content analysis, do NOT ask about reference images, do NOT ask about dimensions — ONLY complete the preferences setup first.
-
-Use Bash to check EXTEND.md existence (priority order):
+### Step 0: Load Preferences ⛔ BLOCKING

+Check EXTEND.md existence (priority: project → user):
 ```bash
-# Check project-level first
 test -f .baoyu-skills/baoyu-cover-image/EXTEND.md && echo "project"
-
-# Then user-level (cross-platform: $HOME works on macOS/Linux/WSL)
 test -f "$HOME/.baoyu-skills/baoyu-cover-image/EXTEND.md" && echo "user"
 ```

 | Result | Action |
 |--------|--------|
-| Found | Read, parse, display preferences summary → Continue to Step 1 |
-| Not found | ⛔ **BLOCKING**: Run first-time setup ONLY ([references/config/first-time-setup.md](references/config/first-time-setup.md)) → Complete and save EXTEND.md → Then continue to Step 1 |
+| Found | Load, display summary → Continue |
+| Not found | ⛔ Run first-time setup ([references/config/first-time-setup.md](references/config/first-time-setup.md)) → Save → Continue |

-**Preferences Summary** (when found):
-
-```
-Preferences loaded from [project/user]:
-• Watermark: [enabled/disabled] [content if enabled]
-• Type/Palette/Rendering: [value or "auto"]
-• Text: [value or "title-only"] | Mood: [value or "balanced"]
-• Aspect: [default_aspect] | Output: [dir or "not set — will ask in Step 1.5"]
-• Quick mode: [enabled/disabled] | Language: [value or "auto"]
-```
-
-**EXTEND.md Supports**: Watermark | Preferred type | Preferred palette | Preferred rendering | Preferred text | Preferred mood | Default aspect ratio | Default output directory | Quick mode | Custom palette definitions | Language preference
-
-Schema: [references/config/preferences-schema.md](references/config/preferences-schema.md)
+**CRITICAL**: If not found, complete setup BEFORE any other steps or questions.

 ### Step 1: Analyze Content

-**1.0 Detect & Save Reference Images** ⚠️ REQUIRED if images provided
-
-Check if user provided reference images. Handle based on input type:
-
-| Input Type | Action |
-|------------|--------|
-| Image file path provided | Copy to `refs/` subdirectory → can use `--ref` |
-| Image in conversation (no path) | **ASK user for file path** with AskUserQuestion |
-| User can't provide path | Extract style/palette verbally → append to prompt (NO frontmatter references) |
-
-**CRITICAL**: Only add `references` to prompt frontmatter if files are ACTUALLY SAVED to `refs/` directory.
-
-**If user provides file path**:
-1. Copy to `refs/ref-NN-{slug}.{ext}` (NN = 01, 02, ...)
-2. Create description: `refs/ref-NN-{slug}.md`
-3. Verify files exist before proceeding
-
-**If user can't provide path** (extracted verbally):
-1. Analyze image visually, extract: colors, style, composition
-2. Create `refs/extracted-style.md` with extracted info
-3. DO NOT add `references` to prompt frontmatter
-4. Instead, append extracted style/colors directly to prompt text
-
-**Description File Format** (only when file saved):
-```yaml
---
-ref_id: NN
-filename: ref-NN-{slug}.{ext}
-usage: direct | style | palette
---
-[User's description or auto-generated description]
-```
-
-| Usage | When to Use |
-|-------|-------------|
-| `direct` | Reference matches desired output closely |
-| `style` | Extract visual style characteristics only |
-| `palette` | Extract color scheme only |
-
-**Verification** (only for saved files):
-```
-Reference Images Saved:
- ref-01-{slug}.png ✓ (can use --ref)
- ref-02-{slug}.png ✓ (can use --ref)
-```
-
-**Or for extracted style**:
-```
-Reference Style Extracted (no file):
- Colors: #E8756D coral, #7ECFC0 mint...
- Style: minimal flat vector, clean lines...
-→ Will append to prompt text (not --ref)
-```
-
---
-
-**1.1 Save Source Content**
- If pasted, save to `source.md` in target directory; if file path, use as-is
- **Backup rule**: If `source.md` exists, rename to `source-backup-YYYYMMDD-HHMMSS.md`
-
-**1.2 Content Analysis**
- Extract topic, core message, tone, keywords
- Identify visual metaphors
- Detect content type
-
-**1.3 Reference Image Analysis** (if provided in Step 1.0)
-
-For each reference image:
-
-| Analysis | Description |
-|----------|-------------|
-| Visual characteristics | Style, colors, composition |
-| Content/subject | What the reference depicts |
-| Style match | Which type/palette/rendering align |
-| Usage recommendation | `direct` / `style` / `palette` |
-
-**1.4 Language Detection**
- Detect source language
- Note user's input language
- Compare with EXTEND.md preference
-
-**1.5 Determine Output Directory**
- Per File Structure rules
- If no `default_output_dir` preference + file path input, include in Step 2 Q4
+1. **Save reference images** (if provided) → [references/workflow/reference-images.md](references/workflow/reference-images.md)
+2. **Save source content** (if pasted, save to `source.md`)
+3. **Analyze content**: topic, tone, keywords, visual metaphors
+4. **Deep analyze references** ⚠️: Extract specific, concrete elements (see reference-images.md)
+5. **Detect language**: Compare source, user input, EXTEND.md preference
+6. **Determine output directory**: Per File Structure rules

 ### Step 2: Confirm Options ⚠️

-Validate all 5 dimensions + aspect ratio. Full confirmation flow: [references/workflow/confirm-options.md](references/workflow/confirm-options.md)
-
-**Skip Conditions**:
+Full confirmation flow: [references/workflow/confirm-options.md](references/workflow/confirm-options.md)

 | Condition | Skipped | Still Asked |
 |-----------|---------|-------------|
-| `--quick` or `quick_mode: true` | 5 dimensions | Aspect ratio (unless `--aspect`) |
-| All 5 + `--aspect` specified | All | None |
+| `--quick` or `quick_mode: true` | 6 dimensions | Aspect ratio (unless `--aspect`) |
+| All 6 + `--aspect` specified | All | None |

 ### Step 3: Create Prompt

-**Backup rule**: If `prompts/cover.md` exists, rename to `prompts/cover-backup-YYYYMMDD-HHMMSS.md`
+Save to `prompts/cover.md`. Template: [references/workflow/prompt-template.md](references/workflow/prompt-template.md)

-Save to `prompts/cover.md`. Full template: [references/workflow/prompt-template.md](references/workflow/prompt-template.md)
+**CRITICAL - References in Frontmatter**:
+- Files saved to `refs/` → Add to frontmatter `references` list
+- Style extracted verbally (no file) → Omit `references`, describe in body
+- Before writing → Verify: `test -f refs/ref-NN-{slug}.{ext}`

-**CRITICAL - References in YAML Frontmatter**:
-
-When reference files are saved to `refs/`, **MUST add `references` field in frontmatter**:
-
-```yaml
---
-type: cover
-palette: warm
-rendering: flat-vector
-references:
-  - ref_id: 01
-    filename: refs/ref-01-podcast-thumbnail.jpg
-    usage: style
---
-```
-
-| Rule | Action |
-|------|--------|
-| Files saved to `refs/` | Add to frontmatter `references` list |
-| Style extracted verbally (no file) | Omit `references` field, describe in body |
-| Before writing | Verify: `test -f refs/ref-NN-{slug}.{ext}` |
-
-**Reference Embedding**:
-
-| Situation | Frontmatter | Body |
-|-----------|-------------|------|
-| Reference file saved to `refs/` | Add to `references` ✓ | Brief style note |
-| Style extracted verbally (no file) | Omit `references` | Full style description |
-| File in frontmatter but doesn't exist | ERROR - fix or remove | — |
+**Reference elements in body** MUST be detailed, prefixed with "MUST"/"REQUIRED", with integration approach.

 ### Step 4: Generate Image

-**4.1 Backup existing** `cover.png` → `cover-backup-YYYYMMDD-HHMMSS.png` (if regenerating)
-
-**4.2 Check available image generation skills**; if multiple, ask user preference
-
-**4.3 Process References** ⚠️ REQUIRED if references in frontmatter
-
-**Read `references` from prompt frontmatter** and process each entry:
-
-1. **Parse frontmatter** to get references list:
-   ```yaml
-   references:
-     - ref_id: 01
-       filename: refs/ref-01-podcast-thumbnail.jpg
-       usage: style
-   ```
-
-2. **VERIFY each file exists**:
-   ```bash
-   test -f refs/ref-NN-{slug}.{ext} && echo "exists" || echo "MISSING"
-   ```
-   - If file MISSING → ERROR, fix prompt or remove from references
-   - If file exists → proceed with processing
-
-3. Process based on `usage` type:
-
-| Usage | Action | Example |
-|-------|--------|---------|
-| `direct` | Add reference path to `--ref` parameter | `--ref refs/ref-01-brand.png` |
-| `style` | Analyze reference, append style traits to prompt | "Style: clean lines, gradient backgrounds..." |
-| `palette` | Extract colors from reference, append to prompt | "Colors: #E8756D coral, #7ECFC0 mint..." |
-
-3. Check image generation skill capability:
-
-| Skill Supports `--ref` | Action |
-|------------------------|--------|
-| Yes (e.g., baoyu-image-gen with Google) | Pass reference images via `--ref` |
-| No | Convert to text description, append to prompt |
-
-**Verification**: Before generating, confirm reference processing:
-```
-Reference Processing:
- ref-01-brand.png: using as direct reference ✓
- ref-02-style.png: extracted palette ✓
-```
-
-**4.4 Generate**
-
-1. Call selected skill with prompt file path, output path (`cover.png`), aspect ratio
-2. If references with `direct` usage AND skill supports `--ref`: include `--ref` parameter
-3. On failure: auto-retry once before reporting error
+1. **Backup existing** `cover.png` if regenerating
+2. **Check image generation skills**; if multiple, ask preference
+3. **Process references** from prompt frontmatter:
+   - `direct` usage → pass via `--ref` (use ref-capable backend)
+   - `style`/`palette` → extract traits, append to prompt
+4. **Generate**: Call skill with prompt file, output path, aspect ratio
+5. On failure: auto-retry once

 ### Step 5: Completion Report

@@ -431,67 +185,49 @@ Cover Generated!

 Topic: [topic]
 Type: [type] | Palette: [palette] | Rendering: [rendering]
-Text: [text] | Mood: [mood] | Aspect: [ratio]
-Title: [title text or "visual only"]
+Text: [text] | Mood: [mood] | Font: [font] | Aspect: [ratio]
+Title: [title or "visual only"]
 Language: [lang] | Watermark: [enabled/disabled]
-References: [N images (direct/style/palette) or "extracted style" or "none"]
+References: [N images or "extracted style" or "none"]
 Location: [directory path]

 Files:
 ✓ source-{slug}.{ext}
-[✓ refs/ref-01-{slug}.{ext} ... (if references saved)]
-[✓ refs/ref-01-{slug}.md ... (description files)]
-[✓ refs/extracted-style.md (if style extracted verbally)]
 ✓ prompts/cover.md
 ✓ cover.png
-[✓ cover-backup-{timestamp}.png (if regenerated)]
 ```

 ## Image Modification

 | Action | Steps |
 |--------|-------|
-| **Regenerate** | Backup existing → **Update prompt file FIRST** → Regenerate with same settings |
-| **Change dimension** | Backup existing → Confirm new value → **Update prompt file FIRST** → Regenerate |
+| **Regenerate** | Backup → Update prompt file FIRST → Regenerate |
+| **Change dimension** | Backup → Confirm new value → Update prompt → Regenerate |

-**IMPORTANT**: When regenerating, ALWAYS update the prompt file (`prompts/cover.md`) FIRST before regenerating. This ensures changes are documented and reproducible.
+## Composition Principles

-All modifications automatically backup existing `cover.png` before regenerating.
+- **Whitespace**: 40-60% breathing room
+- **Visual anchor**: Main element centered or offset left
+- **Characters**: Simplified silhouettes; NO realistic humans
+- **Title**: Use exact title from user/source; never invent

-## Notes
+## Extension Support

- Cover must be readable at small preview sizes
- Visual metaphors > literal representations
- Title: readable, impactful
- Two confirmation points: Step 0 (first-time setup) + Step 2 (options) - skip Step 2 with `--quick`
- Use confirmed language for title text
- Maintain watermark consistency if enabled
- Check compatibility matrices when selecting combinations
- `--no-title` is alias for `--text none`
- `--style` presets are backward-compatible; explicit `--palette`/`--rendering` override preset values
+Custom configurations via EXTEND.md. See **Step 0** for paths.

-### Composition Principles
+Supports: Watermark | Preferred dimensions | Default aspect/output | Quick mode | Custom palettes | Language

- **Generous whitespace**: 40-60% breathing room; avoid cluttered layouts
- **Visual anchor**: Main element centered or offset left (reserve right for title)
- **Character handling**: Simplified silhouettes or icon-style figures; NO realistic humans
- **Icon vocabulary**: Use simple, recognizable symbols (see [references/visual-elements.md](references/visual-elements.md))
-
-### Title Handling
-
- **Source**: Use the exact title provided by user, or extract from source content
- **Do NOT invent titles**: Stay faithful to the original
- If no title in source and user doesn't provide one, ask user to specify
+Schema: [references/config/preferences-schema.md](references/config/preferences-schema.md)

 ## References

-**Dimensions**: [text.md](references/dimensions/text.md) | [mood.md](references/dimensions/mood.md)
+**Dimensions**: [text.md](references/dimensions/text.md) | [mood.md](references/dimensions/mood.md) | [font.md](references/dimensions/font.md)
 **Palettes**: [references/palettes/](references/palettes/)
 **Renderings**: [references/renderings/](references/renderings/)
+**Types**: [references/types.md](references/types.md)
 **Auto-Selection**: [references/auto-selection.md](references/auto-selection.md)
 **Style Presets**: [references/style-presets.md](references/style-presets.md)
 **Compatibility**: [references/compatibility.md](references/compatibility.md)
-**Types**: [references/types.md](references/types.md)
 **Visual Elements**: [references/visual-elements.md](references/visual-elements.md)
-**Workflow**: [confirm-options.md](references/workflow/confirm-options.md) | [prompt-template.md](references/workflow/prompt-template.md)
+**Workflow**: [confirm-options.md](references/workflow/confirm-options.md) | [prompt-template.md](references/workflow/prompt-template.md) | [reference-images.md](references/workflow/reference-images.md)
 **Config**: [preferences-schema.md](references/config/preferences-schema.md) | [first-time-setup.md](references/config/first-time-setup.md) | [watermark-guide.md](references/config/watermark-guide.md)
@@ -58,3 +58,14 @@ Default: `title-only`
 | Launch, announcement, promotion, event, gaming, entertainment | `bold` |

 Default: `balanced`
+
+## Auto Font Selection
+
+| Signals | Font |
+|---------|------|
+| Personal, lifestyle, human, warm, friendly, story | `handwritten` |
+| Technical, professional, clean, modern, minimal, data | `clean` |
+| Editorial, academic, luxury, classic, literary | `serif` |
+| Announcement, entertainment, promotion, bold, event, gaming | `display` |
+
+Default: `clean`
@@ -48,3 +48,12 @@
 | metaphor | ✓✓ | ✓✓ | ✓ |
 | scene | ✓✓ | ✓✓ | ✓ |
 | minimal | ✓✓ | ✓✓ | ✗ |
+
+## Font × Rendering
+
+| | flat-vector | hand-drawn | painterly | digital | pixel | chalk |
+|---|:---:|:---:|:---:|:---:|:---:|:---:|
+| clean | ✓✓ | ✗ | ✗ | ✓✓ | ✓ | ✗ |
+| handwritten | ✓ | ✓✓ | ✓✓ | ✓ | ✗ | ✓✓ |
+| serif | ✓ | ✗ | ✓ | ✓✓ | ✗ | ✗ |
+| display | ✓✓ | ✓ | ✓ | ✓✓ | ✓✓ | ✓ |
@@ -0,0 +1,163 @@
+---
+name: font-dimension
+description: Typography style dimension for cover images
+---
+
+# Font Dimension
+
+Controls typography style and character feel.
+
+## Values
+
+| Font | Visual Style | Line Quality | Character |
+|------|--------------|--------------|-----------|
+| `clean` | Geometric sans-serif | Sharp, uniform | Modern, precise, neutral |
+| `handwritten` | Hand-lettered, brush | Organic, varied | Warm, personal, friendly |
+| `serif` | Classic serifs, elegant | Refined, structured | Editorial, authoritative |
+| `display` | Bold, decorative | Heavy, expressive | Attention-grabbing, playful |
+
+## Detail
+
+### clean
+
+Modern, universal typography with neutral character.
+
+**Characteristics**:
+- Geometric sans-serif letterforms
+- Sharp, uniform line weight
+- Clean edges, no flourishes
+- High readability at all sizes
+- Minimal personality, maximum clarity
+
+**Use Cases**:
+- Technical documentation
+- Professional/corporate content
+- Minimal design approaches
+- Data-driven articles
+- Modern brand aesthetics
+
+**Prompt Hints**:
+- Use clean geometric sans-serif typography
+- Modern, minimal letterforms
+- Sharp edges, uniform stroke weight
+- High contrast against background
+
+### handwritten
+
+Warm, organic typography with personal character.
+
+**Characteristics**:
+- Hand-lettered or brush style
+- Organic, varied line weight
+- Natural imperfections
+- Approachable, human feel
+- Casual yet intentional
+
+**Use Cases**:
+- Personal stories
+- Lifestyle content
+- Wellness and self-improvement
+- Creative tutorials
+- Friendly brand voices
+
+**Prompt Hints**:
+- Use warm hand-lettered typography with organic brush strokes
+- Friendly, personal feel
+- Natural variation in stroke weight
+- Approachable, human character
+
+### serif
+
+Classic, elegant typography with editorial authority.
+
+**Characteristics**:
+- Traditional serif letterforms
+- Refined, structured strokes
+- Elegant proportions
+- Timeless sophistication
+- Formal, trustworthy feel
+
+**Use Cases**:
+- Editorial content
+- Academic articles
+- Luxury brand content
+- Historical topics
+- Literary pieces
+
+**Prompt Hints**:
+- Use elegant serif typography with refined letterforms
+- Classic, editorial character
+- Structured, proportional spacing
+- Authoritative, sophisticated feel
+
+### display
+
+Bold, decorative typography for maximum impact.
+
+**Characteristics**:
+- Heavy, expressive letterforms
+- Decorative elements
+- Strong visual presence
+- Playful or dramatic character
+- Designed for headlines
+
+**Use Cases**:
+- Announcements
+- Entertainment content
+- Promotional materials
+- Event marketing
+- Gaming topics
+
+**Prompt Hints**:
+- Use bold decorative display typography
+- Heavy, expressive headlines
+- Strong visual impact
+- Attention-grabbing character
+
+## Default
+
+`clean` — Universal, pairs well with most rendering styles.
+
+## Rendering Compatibility
+
+| Font × Rendering | flat-vector | hand-drawn | painterly | digital | pixel | chalk |
+|------------------|:-----------:|:----------:|:---------:|:-------:|:-----:|:-----:|
+| clean | ✓✓ | ✗ | ✗ | ✓✓ | ✓ | ✗ |
+| handwritten | ✓ | ✓✓ | ✓✓ | ✓ | ✗ | ✓✓ |
+| serif | ✓ | ✗ | ✓ | ✓✓ | ✗ | ✗ |
+| display | ✓✓ | ✓ | ✓ | ✓✓ | ✓✓ | ✓ |
+
+✓✓ = highly recommended | ✓ = compatible | ✗ = not recommended
+
+## Type Compatibility
+
+| Font × Type | hero | conceptual | typography | metaphor | scene | minimal |
+|-------------|:----:|:----------:|:----------:|:--------:|:-----:|:-------:|
+| clean | ✓ | ✓✓ | ✓✓ | ✓ | ✗ | ✓✓ |
+| handwritten | ✓✓ | ✓ | ✓ | ✓✓ | ✓✓ | ✓ |
+| serif | ✓ | ✓ | ✓✓ | ✓ | ✓ | ✓ |
+| display | ✓✓ | ✓ | ✓✓ | ✓ | ✓ | ✗ |
+
+## Palette Interaction
+
+Font style adapts to palette characteristics:
+
+| Palette Category | clean | handwritten | serif | display |
+|------------------|-------|-------------|-------|---------|
+| Warm (warm, earth, pastel) | Softer weight | Natural fit | Warm tones | Playful energy |
+| Cool (cool, mono, elegant) | Perfect match | Contrast | Classic pairing | Bold statement |
+| Dark (dark, vivid) | High contrast | Glow effects | Dramatic | Maximum impact |
+| Vintage (retro) | Modern contrast | Nostalgic fit | Period-appropriate | Retro headlines |
+
+## Auto Selection
+
+When `--font` is omitted, select based on signals:
+
+| Signals | Font |
+|---------|------|
+| Personal, lifestyle, human, warm, friendly, story | `handwritten` |
+| Technical, professional, clean, modern, minimal, data | `clean` |
+| Editorial, academic, luxury, classic, literary | `serif` |
+| Announcement, entertainment, promotion, bold, event, gaming | `display` |
+
+Default: `clean`
@@ -22,6 +22,7 @@
 | `vector-illustration` | `retro` | `flat-vector` |
 | `vintage` | `retro` | `hand-drawn` |
 | `warm` | `warm` | `hand-drawn` |
+| `warm-flat` | `warm` | `flat-vector` |
 | `watercolor` | `earth` | `painterly` |

 ## Override Examples
@@ -2,22 +2,22 @@

 ## Purpose

-Validate all 5 dimensions + aspect ratio.
+Validate all 6 dimensions + aspect ratio.

 ## Skip Conditions

 | Condition | Skipped Questions | Still Asked |
 |-----------|-------------------|-------------|
-| `--quick` flag | Type, Palette, Rendering, Text, Mood | **Aspect Ratio** (unless `--aspect` specified) |
-| All 5 dimensions + `--aspect` specified | All | None |
-| `quick_mode: true` in EXTEND.md | Type, Palette, Rendering, Text, Mood | **Aspect Ratio** (unless `--aspect` specified) |
-| Otherwise | None | All 6 questions |
+| `--quick` flag | Type, Palette, Rendering, Text, Mood, Font | **Aspect Ratio** (unless `--aspect` specified) |
+| All 6 dimensions + `--aspect` specified | All | None |
+| `quick_mode: true` in EXTEND.md | Type, Palette, Rendering, Text, Mood, Font | **Aspect Ratio** (unless `--aspect` specified) |
+| Otherwise | None | All 7 questions |

 **Important**: Aspect ratio is ALWAYS asked unless explicitly specified via `--aspect` CLI flag. User presets in EXTEND.md are shown as recommended option, not auto-selected.

 ## Quick Mode Output

-When skipping 5 dimensions:
+When skipping 6 dimensions:

 ```
 Quick Mode: Auto-selected dimensions
@@ -26,8 +26,9 @@ Quick Mode: Auto-selected dimensions
 • Rendering: [rendering] ([reason])
 • Text: [text] ([reason])
 • Mood: [mood] ([reason])
+• Font: [font] ([reason])

-[Then ask Question 6: Aspect Ratio]
+[Then ask Question 7: Aspect Ratio]
 ```

 ## Confirmation Flow
@@ -91,7 +92,26 @@ options:
    description: "Polished, precise, subtle gradients"
 ```

-### Q4: Other Settings (skip if all remaining dimensions already specified)
+### Q4: Font (skip if `--font`)
+
+```yaml
+header: "Font"
+question: "Which font style?"
+multiSelect: false
+options:
+  - label: "[auto-recommended font] (Recommended)"
+    description: "[reason based on content signals]"
+  - label: "clean"
+    description: "Modern geometric sans-serif - tech, professional"
+  - label: "handwritten"
+    description: "Warm hand-lettered - personal, friendly"
+  - label: "serif"
+    description: "Classic elegant - editorial, luxury"
+  - label: "display"
+    description: "Bold decorative - announcements, entertainment"
+```
+
+### Q5: Other Settings (skip if all remaining dimensions already specified)

 Combine remaining settings into one question. Include: Output Dir (if no preference + file path input), Text, Mood, Aspect. Show auto-selected values as recommended option. User can accept all or type adjustments via "Other".

@@ -26,6 +26,7 @@ Cover theme: [2-3 words visual interpretation]
 Type: [confirmed type]
 Palette: [confirmed palette]
 Rendering: [confirmed rendering]
+Font: [confirmed font]
 Text level: [confirmed text level]
 Mood: [confirmed mood]
 Aspect ratio: [confirmed ratio]
@@ -44,6 +45,13 @@ Language: [confirmed language]
 - balanced: "Use medium contrast, normal saturation, balanced visual weight"
 - bold: "Use high contrast, vivid saturated colors, heavy visual weight, dynamic energy"

+# Font Application
+[Based on font style:]
+- clean: "Use clean geometric sans-serif typography. Modern, minimal letterforms."
+- handwritten: "Use warm hand-lettered typography with organic brush strokes. Friendly, personal feel."
+- serif: "Use elegant serif typography with refined letterforms. Classic, editorial character."
+- display: "Use bold decorative display typography. Heavy, expressive headlines."
+
 # Composition
 Type composition:
 - [Type-specific layout and structure]
@@ -60,9 +68,15 @@ Palette notes: [key characteristics from palette definition]

 [Watermark section if enabled]

-[Reference images section if provided — see below]
+[Reference images section if provided — REQUIRED, see below]
 ```

+## Reference-Driven Design ⚠️ HIGH PRIORITY
+
+When reference images are provided, they are the **primary visual input** and MUST strongly influence the output. The cover should look like it belongs to the same visual family as the references.
+
+**Passing `--ref` alone is NOT enough.** Image generation models often ignore reference images unless the prompt text explicitly describes what to reproduce. Always combine `--ref` with detailed textual instructions.
+
 ## Content-Driven Design

 - Article title and summary inform the visual metaphor choice
@@ -167,63 +181,67 @@ For each reference image, extract:
 - **Color mood**: Palette characteristics (without specific colors)
 - **Elements**: Key visual elements and symbols used

-### Step 2: Embed in Prompt
+### Step 2: Embed in Prompt ⚠️ CRITICAL

-**If file saved AND skill supports `--ref`** (e.g., baoyu-image-gen with Google):
- Pass ref images directly via `--ref` parameter
- Add brief style note in prompt:
+**Passing `--ref` alone is NOT enough.** Image generation models frequently ignore reference images unless the prompt text explicitly and forcefully describes what to reproduce. You MUST always write detailed textual instructions regardless of whether `--ref` is used.
+
+**If file saved (with or without `--ref` support)**:
+- Pass ref images via `--ref` parameter if skill supports it
+- **ALWAYS** add a detailed mandatory section in the prompt body:

 ```
-# Reference Style
-Follow the visual style of the attached reference image(s):
- [1-2 sentence style summary from analysis]
+# Reference Style — MUST INCORPORATE
+
+CRITICAL: The generated cover MUST visually reference the provided images. The cover must feel like it belongs to the same visual family.
+
+## From Ref 1 ([filename]) — REQUIRED elements:
+- [Brand element]: [Specific description of logo/wordmark treatment, e.g., "The logo uses vertical parallel lines (|||) for the letter 'm'. Reproduce this exact treatment."]
+- [Signature pattern]: [Specific description, e.g., "Woven intersecting curves forming a diamond/lozenge grid pattern. This MUST appear prominently as a banner, border, or background section."]
+- [Colors]: [Exact hex values, e.g., "Dark teal #2D4A3E background, cream #F5F0E0 text"]
+- [Typography]: [Specific treatment, e.g., "Uppercase text with wide letter-spacing"]
+- [Layout element]: [Specific spatial element, e.g., "Bottom banner strip in dark color"]
+
+## From Ref 2 ([filename]) — REQUIRED elements:
+[Same detailed breakdown]
+
+## Integration approach:
+[Specific layout instruction describing how reference elements combine with the cover content, e.g., "Use a SPLIT LAYOUT: main illustration area (warm cream background) occupies ~65% of the image, while a dark teal BANNER STRIP (with the woven line pattern from Ref 2) runs along the bottom ~35%, containing branding elements from Ref 1."]
 ```

-**If file saved BUT skill does NOT support `--ref`**:
- Embed detailed text description in prompt:
-
-```
-# Reference Style (Text Description)
-Emulate the following visual style from reference image(s):
-
-Reference 1: [filename]
- Style: [detailed rendering technique description]
- Composition: [layout and hierarchy description]
- Elements: [key visual elements used]
- Mood: [emotional tone and visual weight]
-
-[Repeat for additional references]
-
-Apply these style characteristics to the cover design while maintaining the specified Type, Palette, and Rendering dimensions.
-```
+**Key rules**:
+- Each visual element gets its own bullet with "MUST" or "REQUIRED"
+- Descriptions must be **specific enough to reproduce** — not vague ("clean style")
+- The integration approach must describe **exact spatial arrangement**
+- After generation, verify reference elements are visible; if not, strengthen and regenerate

 **If style/palette extracted verbally (NO file saved)**:
 - DO NOT add references metadata to prompt
- Append extracted info directly to prompt body:
+- Append extracted info directly to prompt body using the same MUST INCORPORATE format above:

 ```
-# Extracted Style (from reference)
+# Reference Style — MUST INCORPORATE (extracted from visual analysis)

-COLORS (from reference):
- Primary: #E8756D coral
- Secondary: #7ECFC0 mint
-...
+CRITICAL: Apply these specific visual elements extracted from the reference images.

-STYLE (from reference):
- Clean lines, minimal shadows
- Gradient backgrounds
- Flat vector icons
-...
+## REQUIRED elements:
+- [Same detailed bullet format as above]
+
+## Integration approach:
+[Same spatial layout instruction]
 ```

 ### Reference Analysis Template

-Use this format when analyzing reference images:
+Use this format when analyzing reference images. Extract **specific, concrete, reproducible** details — not vague summaries.

-| Aspect | Analysis Points |
-|--------|-----------------|
-| **Rendering** | Line quality (clean/sketchy/painted), texture presence, depth treatment |
-| **Composition** | Element placement, whitespace ratio, visual flow |
-| **Typography** | Font style, text placement, hierarchy (if present) |
-| **Elements** | Icon vocabulary, decorative motifs, character style |
-| **Mood** | Contrast level, saturation, visual weight |
+| Aspect | Analysis Points | Good Example | Bad Example |
+|--------|-----------------|--------------|-------------|
+| **Brand elements** | Logos, wordmarks, distinctive typography | "Logo 'm' formed by 3 vertical lines" | "Has a logo" |
+| **Signature patterns** | Unique motifs, textures, geometric patterns | "Woven curves forming diamond grid" | "Has patterns" |
+| **Colors** | Exact hex values or close approximations | "#2D4A3E dark teal, #F5F0E0 cream" | "Dark and light" |
+| **Layout** | Spatial zones, banner placement, proportions | "Bottom 30% is dark banner with branding" | "Has a banner" |
+| **Typography** | Font style, weight, case, spacing, position | "Uppercase, wide letter-spacing, right-aligned" | "Has text" |
+| **Rendering** | Line quality, texture, depth treatment | "Topographic contour lines as background texture" | "Clean style" |
+| **Elements** | Icon vocabulary, decorative motifs | "Geometric intersecting line ornaments at corners" | "Has decorations" |
+
+**Output**: Each extracted element should be written as a **copy-pasteable prompt instruction** prefixed with "MUST" or "REQUIRED".
@@ -0,0 +1,86 @@
+# Reference Image Handling
+
+Guide for processing user-provided reference images in cover generation.
+
+## Input Detection
+
+| Input Type | Action |
+|------------|--------|
+| Image file path provided | Copy to `refs/` → can use `--ref` |
+| Image in conversation (no path) | **ASK user for file path** with AskUserQuestion |
+| User can't provide path | Extract style/palette verbally → append to prompt (NO frontmatter references) |
+
+**CRITICAL**: Only add `references` to prompt frontmatter if files are ACTUALLY SAVED to `refs/` directory.
+
+## File Saving
+
+**If user provides file path**:
+1. Copy to `refs/ref-NN-{slug}.{ext}` (NN = 01, 02, ...)
+2. Create description: `refs/ref-NN-{slug}.md`
+3. Verify files exist before proceeding
+
+**Description File Format**:
+```yaml
+---
+ref_id: NN
+filename: ref-NN-{slug}.{ext}
+usage: direct | style | palette
+---
+[User's description or auto-generated description]
+```
+
+| Usage | When to Use |
+|-------|-------------|
+| `direct` | Reference matches desired output closely |
+| `style` | Extract visual style characteristics only |
+| `palette` | Extract color scheme only |
+
+## Verbal Extraction (No File)
+
+When user can't provide file path:
+1. Analyze image visually, extract: colors, style, composition
+2. Create `refs/extracted-style.md` with extracted info
+3. DO NOT add `references` to prompt frontmatter
+4. Append extracted style/colors directly to prompt text
+
+## Deep Analysis ⚠️ CRITICAL
+
+References are high-priority inputs. Extract **specific, concrete, reproducible** elements:
+
+| Analysis | Description | Example (good vs bad) |
+|----------|-------------|----------------------|
+| **Brand elements** | Logos, wordmarks, specific typography | Good: "Logo uses vertical parallel lines for 'm'" / Bad: "Has a logo" |
+| **Signature patterns** | Unique decorative motifs, textures | Good: "Woven intersecting curves forming diamond grid" / Bad: "Has patterns" |
+| **Color palette** | Exact hex values for key colors | Good: "#2D4A3E dark teal, #F5F0E0 cream" / Bad: "Dark and light colors" |
+| **Layout structure** | Specific spatial arrangement | Good: "Bottom 30% dark banner with branding" / Bad: "Has a banner" |
+| **Typography** | Font style, weight, spacing, case | Good: "Uppercase, wide letter-spacing" / Bad: "Has text" |
+| **Content/subject** | What the reference depicts | Factual description |
+| **Usage recommendation** | `direct` / `style` / `palette` | Based on analysis |
+
+**Output format**: List each element as bullet that can be copy-pasted into prompt as mandatory instruction.
+
+## Verification Output
+
+**For saved files**:
+```
+Reference Images Saved:
+- ref-01-{slug}.png ✓ (can use --ref)
+- ref-02-{slug}.png ✓ (can use --ref)
+```
+
+**For extracted style**:
+```
+Reference Style Extracted (no file):
+- Colors: #E8756D coral, #7ECFC0 mint...
+- Style: minimal flat vector, clean lines...
+→ Will append to prompt text (not --ref)
+```
+
+## Priority Rules
+
+When user provides references, they are **HIGH PRIORITY**:
+
+- **References override defaults**: If reference conflicts with preferred palette/rendering, reference takes precedence
+- **Concrete > abstract**: Extract specific elements — not vague "clean style"
+- **Mandatory language**: Use "MUST", "REQUIRED" in prompt for reference elements
+- **Visible in output**: Verify elements are present after generation; strengthen prompt if not
@@ -41,7 +41,9 @@ test -f "$HOME/.baoyu-skills/baoyu-image-gen/EXTEND.md" && echo "user"
 │ Not found │ Use defaults                                                              │
 └───────────┴───────────────────────────────────────────────────────────────────────────┘

-**EXTEND.md Supports**: Default provider | Default quality | Default aspect ratio
+**EXTEND.md Supports**: Default provider | Default quality | Default aspect ratio | Default image size | Default models
+
+Schema: `references/config/preferences-schema.md`

 ## Usage

@@ -58,9 +60,12 @@ npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "A cat" --image out.png --quali
 # From prompt files
 npx -y bun ${SKILL_DIR}/scripts/main.ts --promptfiles system.md content.md --image out.png

-# With reference images (Google multimodal only)
+# With reference images (Google multimodal or OpenAI edits)
 npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "Make blue" --image out.png --ref source.png

+# With reference images (explicit provider/model)
+npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "Make blue" --image out.png --provider google --model gemini-3-pro-image-preview --ref source.png
+
 # Specific provider
 npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "A cat" --image out.png --provider openai

@@ -76,12 +81,12 @@ npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "一只可爱的猫" --image ou
 | `--promptfiles <files...>` | Read prompt from files (concatenated) |
 | `--image <path>` | Output image path (required) |
 | `--provider google\|openai\|dashscope` | Force provider (default: google) |
-| `--model <id>`, `-m` | Model ID |
+| `--model <id>`, `-m` | Model ID (`--ref` with OpenAI requires GPT Image model, e.g. `gpt-image-1.5`) |
 | `--ar <ratio>` | Aspect ratio (e.g., `16:9`, `1:1`, `4:3`) |
 | `--size <WxH>` | Size (e.g., `1024x1024`) |
 | `--quality normal\|2k` | Quality preset (default: 2k) |
 | `--imageSize 1K\|2K\|4K` | Image size for Google (default: from quality) |
-| `--ref <files...>` | Reference images (Google multimodal only) |
+| `--ref <files...>` | Reference images. Supported by Google multimodal and OpenAI edits (GPT Image models). If provider omitted: Google first, then OpenAI |
 | `--n <count>` | Number of images |
 | `--json` | JSON output |

@@ -99,13 +104,14 @@ npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "一只可爱的猫" --image ou
 | `GOOGLE_BASE_URL` | Custom Google endpoint |
 | `DASHSCOPE_BASE_URL` | Custom DashScope endpoint |

-**Load Priority**: CLI args > env vars > `<cwd>/.baoyu-skills/.env` > `~/.baoyu-skills/.env`
+**Load Priority**: CLI args > EXTEND.md > env vars > `<cwd>/.baoyu-skills/.env` > `~/.baoyu-skills/.env`

 ## Provider Selection

-1. `--provider` specified → use it
-2. Only one API key available → use that provider
-3. Multiple available → default to Google
+1. `--ref` provided + no `--provider` → auto-select Google first, then OpenAI
+2. `--provider` specified → use it (if `--ref`, must be `google` or `openai`)
+3. Only one API key available → use that provider
+4. Multiple available → default to Google

 ## Quality Presets

@@ -155,7 +161,7 @@ Supported: `1:1`, `16:9`, `9:16`, `4:3`, `3:4`, `2.35:1`
 - Missing API key → error with setup instructions
 - Generation failure → auto-retry once
 - Invalid aspect ratio → warning, proceed with default
- Reference images with non-multimodal model → warning, ignore refs
+- Reference images with unsupported provider/model → error with fix hint (switch to Google multimodal or OpenAI GPT Image edits)

 ## Extension Support

@@ -0,0 +1,66 @@
+---
+name: preferences-schema
+description: EXTEND.md YAML schema for baoyu-image-gen user preferences
+---
+
+# Preferences Schema
+
+## Full Schema
+
+```yaml
+---
+version: 1
+
+default_provider: null      # google|openai|dashscope|null (null = auto-detect)
+
+default_quality: null       # normal|2k|null (null = use default: 2k)
+
+default_aspect_ratio: null  # "16:9"|"1:1"|"4:3"|"3:4"|"2.35:1"|null
+
+default_image_size: null    # 1K|2K|4K|null (Google only, overrides quality)
+
+default_model:
+  google: null              # e.g., "gemini-3-pro-image-preview"
+  openai: null              # e.g., "gpt-image-1.5"
+  dashscope: null           # e.g., "z-image-turbo"
+---
+```
+
+## Field Reference
+
+| Field | Type | Default | Description |
+|-------|------|---------|-------------|
+| `version` | int | 1 | Schema version |
+| `default_provider` | string\|null | null | Default provider (null = auto-detect) |
+| `default_quality` | string\|null | null | Default quality (null = 2k) |
+| `default_aspect_ratio` | string\|null | null | Default aspect ratio |
+| `default_image_size` | string\|null | null | Google image size (overrides quality) |
+| `default_model.google` | string\|null | null | Google default model |
+| `default_model.openai` | string\|null | null | OpenAI default model |
+| `default_model.dashscope` | string\|null | null | DashScope default model |
+
+## Examples
+
+**Minimal**:
+```yaml
+---
+version: 1
+default_provider: google
+default_quality: 2k
+---
+```
+
+**Full**:
+```yaml
+---
+version: 1
+default_provider: google
+default_quality: 2k
+default_aspect_ratio: "16:9"
+default_image_size: 2K
+default_model:
+  google: "gemini-3-pro-image-preview"
+  openai: "gpt-image-1.5"
+  dashscope: "z-image-turbo"
+---
+```
@@ -1,8 +1,8 @@
 import path from "node:path";
 import process from "node:process";
 import { homedir } from "node:os";
-import { mkdir, readFile, writeFile } from "node:fs/promises";
-import type { CliArgs, Provider } from "./types";
+import { access, mkdir, readFile, writeFile } from "node:fs/promises";
+import type { CliArgs, Provider, ExtendConfig } from "./types";

 function printUsage(): void {
  console.log(`Usage:
@@ -20,7 +20,7 @@ Options:
  --size <WxH>              Size (e.g., 1024x1024)
  --quality normal|2k       Quality preset (default: 2k)
  --imageSize 1K|2K|4K      Image size for Google (default: from quality)
-  --ref <files...>          Reference images (Google multimodal only)
+  --ref <files...>          Reference images (Google multimodal or OpenAI edits)
  --n <count>               Number of images (default: 1)
  --json                    JSON output
  -h, --help                Show help
@@ -37,7 +37,7 @@ Environment variables:
  GOOGLE_BASE_URL           Custom Google endpoint
  DASHSCOPE_BASE_URL        Custom DashScope endpoint

-Env file load order: CLI args > process.env > <cwd>/.baoyu-skills/.env > ~/.baoyu-skills/.env`);
+Env file load order: CLI args > EXTEND.md > process.env > <cwd>/.baoyu-skills/.env > ~/.baoyu-skills/.env`);
 }

 function parseArgs(argv: string[]): CliArgs {
@@ -49,7 +49,7 @@ function parseArgs(argv: string[]): CliArgs {
    model: null,
    aspectRatio: null,
    size: null,
-    quality: "2k",
+    quality: null,
    imageSize: null,
    referenceImages: [],
    n: 1,
@@ -215,6 +215,87 @@ async function loadEnv(): Promise<void> {
  }
 }

+function extractYamlFrontMatter(content: string): string | null {
+  const match = content.match(/^---\s*\n([\s\S]*?)\n---\s*$/m);
+  return match ? match[1] : null;
+}
+
+function parseSimpleYaml(yaml: string): Partial<ExtendConfig> {
+  const config: Partial<ExtendConfig> = {};
+  const lines = yaml.split("\n");
+  let currentKey: string | null = null;
+
+  for (const line of lines) {
+    const trimmed = line.trim();
+    if (!trimmed || trimmed.startsWith("#")) continue;
+
+    if (trimmed.includes(":") && !trimmed.startsWith("-")) {
+      const colonIdx = trimmed.indexOf(":");
+      const key = trimmed.slice(0, colonIdx).trim();
+      let value = trimmed.slice(colonIdx + 1).trim();
+
+      if (value === "null" || value === "") {
+        value = "null";
+      }
+
+      if (key === "version") {
+        config.version = value === "null" ? 1 : parseInt(value, 10);
+      } else if (key === "default_provider") {
+        config.default_provider = value === "null" ? null : (value as Provider);
+      } else if (key === "default_quality") {
+        config.default_quality = value === "null" ? null : (value as "normal" | "2k");
+      } else if (key === "default_aspect_ratio") {
+        const cleaned = value.replace(/['"]/g, "");
+        config.default_aspect_ratio = cleaned === "null" ? null : cleaned;
+      } else if (key === "default_image_size") {
+        config.default_image_size = value === "null" ? null : (value as "1K" | "2K" | "4K");
+      } else if (key === "default_model") {
+        config.default_model = { google: null, openai: null, dashscope: null };
+        currentKey = "default_model";
+      } else if (currentKey === "default_model" && (key === "google" || key === "openai" || key === "dashscope")) {
+        const cleaned = value.replace(/['"]/g, "");
+        config.default_model![key] = cleaned === "null" ? null : cleaned;
+      }
+    }
+  }
+
+  return config;
+}
+
+async function loadExtendConfig(): Promise<Partial<ExtendConfig>> {
+  const home = homedir();
+  const cwd = process.cwd();
+
+  const paths = [
+    path.join(cwd, ".baoyu-skills", "baoyu-image-gen", "EXTEND.md"),
+    path.join(home, ".baoyu-skills", "baoyu-image-gen", "EXTEND.md"),
+  ];
+
+  for (const p of paths) {
+    try {
+      const content = await readFile(p, "utf8");
+      const yaml = extractYamlFrontMatter(content);
+      if (!yaml) continue;
+
+      return parseSimpleYaml(yaml);
+    } catch {
+      continue;
+    }
+  }
+
+  return {};
+}
+
+function mergeConfig(args: CliArgs, extend: Partial<ExtendConfig>): CliArgs {
+  return {
+    ...args,
+    provider: args.provider ?? extend.default_provider ?? null,
+    quality: args.quality ?? extend.default_quality ?? null,
+    aspectRatio: args.aspectRatio ?? extend.default_aspect_ratio ?? null,
+    imageSize: args.imageSize ?? extend.default_image_size ?? null,
+  };
+}
+
 async function readPromptFromFiles(files: string[]): Promise<string> {
  const parts: string[] = [];
  for (const f of files) {
@@ -242,12 +323,26 @@ function normalizeOutputImagePath(p: string): string {
 }

 function detectProvider(args: CliArgs): Provider {
+  if (args.referenceImages.length > 0 && args.provider && args.provider !== "google" && args.provider !== "openai") {
+    throw new Error(
+      "Reference images require a ref-capable provider. Use --provider google (Gemini multimodal) or --provider openai (GPT Image edits)."
+    );
+  }
+
  if (args.provider) return args.provider;

  const hasGoogle = !!(process.env.GOOGLE_API_KEY || process.env.GEMINI_API_KEY);
  const hasOpenai = !!process.env.OPENAI_API_KEY;
  const hasDashscope = !!process.env.DASHSCOPE_API_KEY;

+  if (args.referenceImages.length > 0) {
+    if (hasGoogle) return "google";
+    if (hasOpenai) return "openai";
+    throw new Error(
+      "Reference images require Google or OpenAI. Set GOOGLE_API_KEY/GEMINI_API_KEY or OPENAI_API_KEY, or remove --ref."
+    );
+  }
+
  const available = [hasGoogle && "google", hasOpenai && "openai", hasDashscope && "dashscope"].filter(Boolean) as Provider[];

  if (available.length === 1) return available[0]!;
@@ -259,11 +354,34 @@ function detectProvider(args: CliArgs): Provider {
  );
 }

+async function validateReferenceImages(referenceImages: string[]): Promise<void> {
+  for (const refPath of referenceImages) {
+    const fullPath = path.resolve(refPath);
+    try {
+      await access(fullPath);
+    } catch {
+      throw new Error(`Reference image not found: ${fullPath}`);
+    }
+  }
+}
+
 type ProviderModule = {
  getDefaultModel: () => string;
  generateImage: (prompt: string, model: string, args: CliArgs) => Promise<Uint8Array>;
 };

+function isRetryableGenerationError(error: unknown): boolean {
+  const msg = error instanceof Error ? error.message : String(error);
+  const nonRetryableMarkers = [
+    "Reference image",
+    "not supported",
+    "only supported",
+    "No API key found",
+    "is required",
+  ];
+  return !nonRetryableMarkers.some((marker) => msg.includes(marker));
+}
+
 async function loadProviderModule(provider: Provider): Promise<ProviderModule> {
  if (provider === "google") {
    return (await import("./providers/google")) as ProviderModule;
@@ -283,9 +401,13 @@ async function main(): Promise<void> {
  }

  await loadEnv();
+  const extendConfig = await loadExtendConfig();
+  const mergedArgs = mergeConfig(args, extendConfig);

-  let prompt: string | null = args.prompt;
-  if (!prompt && args.promptFiles.length > 0) prompt = await readPromptFromFiles(args.promptFiles);
+  if (!mergedArgs.quality) mergedArgs.quality = "2k";
+
+  let prompt: string | null = mergedArgs.prompt;
+  if (!prompt && mergedArgs.promptFiles.length > 0) prompt = await readPromptFromFiles(mergedArgs.promptFiles);
  if (!prompt) prompt = await readPromptFromStdin();

  if (!prompt) {
@@ -295,27 +417,39 @@ async function main(): Promise<void> {
    return;
  }

-  if (!args.imagePath) {
+  if (!mergedArgs.imagePath) {
    console.error("Error: --image is required");
    printUsage();
    process.exitCode = 1;
    return;
  }

-  const provider = detectProvider(args);
+  if (mergedArgs.referenceImages.length > 0) {
+    await validateReferenceImages(mergedArgs.referenceImages);
+  }
+
+  const provider = detectProvider(mergedArgs);
  const providerModule = await loadProviderModule(provider);
-  const model = args.model || providerModule.getDefaultModel();
-  const outputPath = normalizeOutputImagePath(args.imagePath);
+
+  let model = mergedArgs.model;
+  if (!model && extendConfig.default_model) {
+    if (provider === "google") model = extendConfig.default_model.google ?? null;
+    if (provider === "openai") model = extendConfig.default_model.openai ?? null;
+    if (provider === "dashscope") model = extendConfig.default_model.dashscope ?? null;
+  }
+  model = model || providerModule.getDefaultModel();
+
+  const outputPath = normalizeOutputImagePath(mergedArgs.imagePath);

  let imageData: Uint8Array;
  let retried = false;

  while (true) {
    try {
-      imageData = await providerModule.generateImage(prompt, model, args);
+      imageData = await providerModule.generateImage(prompt, model, mergedArgs);
      break;
    } catch (e) {
-      if (!retried) {
+      if (!retried && isRetryableGenerationError(e)) {
        retried = true;
        console.error("Generation failed, retrying...");
        continue;
@@ -328,7 +462,7 @@ async function main(): Promise<void> {
  await mkdir(dir, { recursive: true });
  await writeFile(outputPath, imageData);

-  if (args.json) {
+  if (mergedArgs.json) {
    console.log(
      JSON.stringify(
        {
@@ -58,7 +58,9 @@ export async function generateImage(
  if (!apiKey) throw new Error("DASHSCOPE_API_KEY is required");

  if (args.referenceImages.length > 0) {
-    console.error("Warning: Reference images not yet supported with DashScope, ignoring.");
+    throw new Error(
+      "Reference images are not supported with DashScope provider in baoyu-image-gen. Use --provider google with a Gemini multimodal model."
+    );
  }

  const size = args.size ? normalizeSize(args.size) : getSizeFromAspectRatio(args.aspectRatio, args.quality);
@@ -216,13 +216,17 @@ export async function generateImage(
 ): Promise<Uint8Array> {
  if (isGoogleImagen(model)) {
    if (args.referenceImages.length > 0) {
-      console.error("Warning: Reference images not supported with Imagen models, ignoring.");
+      throw new Error(
+        "Reference images are not supported with Imagen models. Use gemini-3-pro-image-preview or gemini-3-flash-preview."
+      );
    }
    return generateWithImagen(prompt, model, args);
  }

  if (!isGoogleMultimodal(model) && args.referenceImages.length > 0) {
-    console.error("Warning: Reference images are only supported with Gemini multimodal models.");
+    throw new Error(
+      "Reference images are only supported with Gemini multimodal models. Use gemini-3-pro-image-preview or gemini-3-flash-preview."
+    );
  }

  return generateWithGemini(prompt, model, args);
@@ -1,9 +1,13 @@
+import path from "node:path";
+import { readFile } from "node:fs/promises";
 import type { CliArgs } from "../types";

 export function getDefaultModel(): string {
  return process.env.OPENAI_IMAGE_MODEL || "gpt-image-1.5";
 }

+type OpenAIImageResponse = { data: Array<{ url?: string; b64_json?: string }> };
+
 function parseAspectRatio(ar: string): { width: number; height: number } | null {
  const match = ar.match(/^(\d+(?:\.\d+)?):(\d+(?:\.\d+)?)$/);
  if (!match) return null;
@@ -66,20 +70,32 @@ export async function generateImage(

  if (!apiKey) throw new Error("OPENAI_API_KEY is required");

-  if (args.referenceImages.length > 0) {
-    console.error("Warning: Reference images not supported with OpenAI, ignoring.");
-  }
-
  const size = args.size || getOpenAISize(model, args.aspectRatio, args.quality);

-  const body: Record<string, any> = {
-    model,
-    prompt,
-    size,
-  };
+  if (args.referenceImages.length > 0) {
+    if (model.includes("dall-e-2") || model.includes("dall-e-3")) {
+      throw new Error(
+        "Reference images with OpenAI in this skill require GPT Image models. Use --model gpt-image-1.5 (or another gpt-image model)."
+      );
+    }
+    return generateWithOpenAIEdits(baseURL, apiKey, prompt, model, size, args.referenceImages, args.quality);
+  }
+
+  return generateWithOpenAIGenerations(baseURL, apiKey, prompt, model, size, args.quality);
+}
+
+async function generateWithOpenAIGenerations(
+  baseURL: string,
+  apiKey: string,
+  prompt: string,
+  model: string,
+  size: string,
+  quality: CliArgs["quality"]
+): Promise<Uint8Array> {
+  const body: Record<string, any> = { model, prompt, size };

  if (model.includes("dall-e-3")) {
-    body.quality = args.quality === "2k" ? "hd" : "standard";
+    body.quality = quality === "2k" ? "hd" : "standard";
  }

  const res = await fetch(`${baseURL}/images/generations`, {
@@ -96,7 +112,62 @@ export async function generateImage(
    throw new Error(`OpenAI API error: ${err}`);
  }

-  const result = (await res.json()) as { data: Array<{ url?: string; b64_json?: string }> };
+  const result = (await res.json()) as OpenAIImageResponse;
+  return extractImageFromResponse(result);
+}
+
+async function generateWithOpenAIEdits(
+  baseURL: string,
+  apiKey: string,
+  prompt: string,
+  model: string,
+  size: string,
+  referenceImages: string[],
+  quality: CliArgs["quality"]
+): Promise<Uint8Array> {
+  const form = new FormData();
+  form.append("model", model);
+  form.append("prompt", prompt);
+  form.append("size", size);
+
+  if (model.includes("gpt-image")) {
+    form.append("quality", quality === "2k" ? "high" : "medium");
+  }
+
+  for (const refPath of referenceImages) {
+    const bytes = await readFile(refPath);
+    const filename = path.basename(refPath);
+    const mimeType = getMimeType(filename);
+    const blob = new Blob([bytes], { type: mimeType });
+    form.append("image[]", blob, filename);
+  }
+
+  const res = await fetch(`${baseURL}/images/edits`, {
+    method: "POST",
+    headers: {
+      Authorization: `Bearer ${apiKey}`,
+    },
+    body: form,
+  });
+
+  if (!res.ok) {
+    const err = await res.text();
+    throw new Error(`OpenAI edits API error: ${err}`);
+  }
+
+  const result = (await res.json()) as OpenAIImageResponse;
+  return extractImageFromResponse(result);
+}
+
+function getMimeType(filename: string): string {
+  const ext = path.extname(filename).toLowerCase();
+  if (ext === ".jpg" || ext === ".jpeg") return "image/jpeg";
+  if (ext === ".webp") return "image/webp";
+  if (ext === ".gif") return "image/gif";
+  return "image/png";
+}
+
+async function extractImageFromResponse(result: OpenAIImageResponse): Promise<Uint8Array> {
  const img = result.data[0];

  if (img?.b64_json) {
@@ -9,10 +9,23 @@ export type CliArgs = {
  model: string | null;
  aspectRatio: string | null;
  size: string | null;
-  quality: Quality;
+  quality: Quality | null;
  imageSize: string | null;
  referenceImages: string[];
  n: number;
  json: boolean;
  help: boolean;
 };
+
+export type ExtendConfig = {
+  version: number;
+  default_provider: Provider | null;
+  default_quality: Quality | null;
+  default_aspect_ratio: string | null;
+  default_image_size: "1K" | "2K" | "4K" | null;
+  default_model: {
+    google: string | null;
+    openai: string | null;
+    dashscope: string | null;
+  };
+};
@@ -126,7 +126,18 @@ export async function convertMarkdown(markdownPath: string, options?: { title?:

  const { frontmatter, body } = parseFrontmatter(content);

-  let title = options?.title ?? frontmatter.title ?? '';
+  const stripQuotes = (s?: string): string => {
+    if (!s) return '';
+    if ((s.startsWith('"') && s.endsWith('"')) || (s.startsWith("'") && s.endsWith("'"))) {
+      return s.slice(1, -1);
+    }
+    if ((s.startsWith('\u201c') && s.endsWith('\u201d')) || (s.startsWith('\u2018') && s.endsWith('\u2019'))) {
+      return s.slice(1, -1);
+    }
+    return s;
+  };
+
+  let title = options?.title ?? stripQuotes(frontmatter.title) ?? '';
  if (!title) {
    const lines = body.split('\n');
    for (const line of lines) {
@@ -138,8 +149,8 @@ export async function convertMarkdown(markdownPath: string, options?: { title?:
    }
  }
  if (!title) title = path.basename(markdownPath, path.extname(markdownPath));
-  const author = frontmatter.author || '';
-  let summary = frontmatter.description || frontmatter.summary || '';
+  const author = stripQuotes(frontmatter.author);
+  let summary = stripQuotes(frontmatter.description) || stripQuotes(frontmatter.summary);

  if (!summary) {
    const lines = body.split('\n');
@@ -708,14 +708,28 @@ function normalizeThemeCss(css: string): string {
  return stripOutputScope(css);
 }

-function buildHtmlDocument(title: string, css: string, html: string): string {
-  return [
+interface HtmlDocumentMeta {
+  title: string;
+  author?: string;
+  description?: string;
+}
+
+function buildHtmlDocument(meta: HtmlDocumentMeta, css: string, html: string): string {
+  const lines = [
    "<!doctype html>",
    "<html>",
    "<head>",
    '  <meta charset="utf-8" />',
    '  <meta name="viewport" content="width=device-width, initial-scale=1" />',
-    `  <title>${title}</title>`,
+    `  <title>${meta.title}</title>`,
+  ];
+  if (meta.author) {
+    lines.push(`  <meta name="author" content="${meta.author}" />`);
+  }
+  if (meta.description) {
+    lines.push(`  <meta name="description" content="${meta.description}" />`);
+  }
+  lines.push(
    `  <style>${css}</style>`,
    "</head>",
    "<body>",
@@ -723,8 +737,9 @@ function buildHtmlDocument(title: string, css: string, html: string): string {
    html,
    "  </div>",
    "</body>",
-    "</html>",
-  ].join("\n");
+    "</html>"
+  );
+  return lines.join("\n");
 }

 async function inlineCss(html: string): Promise<string> {
@@ -814,6 +829,7 @@ async function main(): Promise<void> {
  const markdown = fs.readFileSync(inputPath, "utf-8");

  const renderer = initRenderer({});
+  const { yamlData } = renderer.parseFrontMatterAndContent(markdown);
  const { html: baseHtml, readingTime: readingTimeResult } = renderMarkdown(
    markdown,
    renderer
@@ -823,8 +839,23 @@ async function main(): Promise<void> {
    content = removeFirstHeading(content);
  }

-  const title = path.basename(outputPath, ".html");
-  const html = buildHtmlDocument(title, css, content);
+  const stripQuotes = (s?: string): string | undefined => {
+    if (!s) return s;
+    if ((s.startsWith('"') && s.endsWith('"')) || (s.startsWith("'") && s.endsWith("'"))) {
+      return s.slice(1, -1);
+    }
+    if ((s.startsWith('\u201c') && s.endsWith('\u201d')) || (s.startsWith('\u2018') && s.endsWith('\u2019'))) {
+      return s.slice(1, -1);
+    }
+    return s;
+  };
+
+  const meta: HtmlDocumentMeta = {
+    title: stripQuotes(yamlData.title) || path.basename(outputPath, ".html"),
+    author: stripQuotes(yamlData.author),
+    description: stripQuotes(yamlData.description) || stripQuotes(yamlData.summary),
+  };
+  const html = buildHtmlDocument(meta, css, content);
  const inlinedHtml = normalizeInlineCss(await inlineCss(html));
  const finalHtml = modifyHtmlStructure(inlinedHtml);

@@ -120,22 +120,28 @@ export async function convertMarkdown(markdownPath: string, options?: { title?:
  const { frontmatter, body } = parseFrontmatter(content);

  let title = options?.title ?? frontmatter.title ?? '';
+  let bodyWithoutTitle = body;
  if (!title) {
    const lines = body.split('\n');
    for (const line of lines) {
      const trimmed = line.trim();
      if (!trimmed) continue;
      const headingMatch = trimmed.match(/^#{1,2}\s+(.+)$/);
-      if (headingMatch) title = headingMatch[1]!;
+      if (headingMatch) {
+        title = headingMatch[1]!;
+        bodyWithoutTitle = body.replace(/^#{1,2}\s+.+\r?\n?/, '');
+      }
      break;
    }
+  } else {
+    bodyWithoutTitle = body.replace(/^#{1,2}\s+.+\r?\n?/, '');
  }
  if (!title) title = path.basename(markdownPath, path.extname(markdownPath));
  const author = frontmatter.author || '';
  let summary = frontmatter.description || frontmatter.summary || '';

  if (!summary) {
-    const lines = body.split('\n');
+    const lines = bodyWithoutTitle.split('\n');
    for (const line of lines) {
      const trimmed = line.trim();
      if (!trimmed) continue;
@@ -161,7 +167,7 @@ export async function convertMarkdown(markdownPath: string, options?: { title?:
  const images: Array<{ src: string; placeholder: string }> = [];
  let imageCounter = 0;

-  const modifiedBody = body.replace(/!\[([^\]]*)\]\(([^)]+)\)/g, (match, alt, src) => {
+  const modifiedBody = bodyWithoutTitle.replace(/!\[([^\]]*)\]\(([^)]+)\)/g, (match, alt, src) => {
    const placeholder = `WECHATIMGPH_${++imageCounter}`;
    images.push({ src, placeholder });
    return placeholder;
@@ -374,7 +374,7 @@ export function initRenderer(opts: IOpts = {}): RendererAPI {

      listCounters[listCounters.length - 1] = idx + 1;

-      const prefix = ordered ? `${idx}. ` : "• ";
+      const prefix = ordered ? "" : "• ";

      let content: string;
      try {
@@ -273,22 +273,31 @@ async function selectAndReplacePlaceholder(session: ChromeSession, placeholder:
        const editor = document.querySelector('.ProseMirror');
        if (!editor) return false;

+        const placeholder = ${JSON.stringify(placeholder)};
        const walker = document.createTreeWalker(editor, NodeFilter.SHOW_TEXT, null, false);
        let node;

        while ((node = walker.nextNode())) {
          const text = node.textContent || '';
-          const idx = text.indexOf(${JSON.stringify(placeholder)});
-          if (idx !== -1) {
-            node.parentElement.scrollIntoView({ behavior: 'smooth', block: 'center' });
+          let searchStart = 0;
+          let idx;
+          // Search for exact match (not prefix of longer placeholder like XIMGPH_1 in XIMGPH_10)
+          while ((idx = text.indexOf(placeholder, searchStart)) !== -1) {
+            const afterIdx = idx + placeholder.length;
+            const charAfter = text[afterIdx];
+            // Exact match if next char is not a digit
+            if (charAfter === undefined || !/\\d/.test(charAfter)) {
+              node.parentElement.scrollIntoView({ behavior: 'smooth', block: 'center' });

-            const range = document.createRange();
-            range.setStart(node, idx);
-            range.setEnd(node, idx + ${placeholder.length});
-            const sel = window.getSelection();
-            sel.removeAllRanges();
-            sel.addRange(range);
-            return true;
+              const range = document.createRange();
+              range.setStart(node, idx);
+              range.setEnd(node, idx + placeholder.length);
+              const sel = window.getSelection();
+              sel.removeAllRanges();
+              sel.addRange(range);
+              return true;
+            }
+            searchStart = afterIdx;
          }
        }
        return false;
@@ -306,6 +315,71 @@ async function pressDeleteKey(session: ChromeSession): Promise<void> {
  await session.cdp.send('Input.dispatchKeyEvent', { type: 'keyUp', key: 'Backspace', code: 'Backspace', windowsVirtualKeyCode: 8 }, { sessionId: session.sessionId });
 }

+async function removeExtraEmptyLineAfterImage(session: ChromeSession): Promise<boolean> {
+  const removed = await evaluate<boolean>(session, `
+    (function() {
+      const editor = document.querySelector('.ProseMirror');
+      if (!editor) return false;
+
+      const sel = window.getSelection();
+      if (!sel || sel.rangeCount === 0) return false;
+
+      let node = sel.anchorNode;
+      if (!node) return false;
+      let element = node.nodeType === Node.ELEMENT_NODE ? node : node.parentElement;
+      if (!element || !editor.contains(element)) return false;
+
+      const isEmptyParagraph = (el) => {
+        if (!el || el.tagName !== 'P') return false;
+        const text = (el.textContent || '').trim();
+        if (text.length > 0) return false;
+        return el.querySelectorAll('img, figure, video, iframe').length === 0;
+      };
+
+      const hasImage = (el) => {
+        if (!el) return false;
+        return !!el.querySelector('img, figure img, picture img');
+      };
+
+      const placeCursorAfter = (el) => {
+        if (!el) return;
+        const range = document.createRange();
+        range.setStartAfter(el);
+        range.collapse(true);
+        sel.removeAllRanges();
+        sel.addRange(range);
+      };
+
+      // Case 1: caret is inside an empty paragraph right after an image block.
+      const emptyPara = element.closest('p');
+      if (emptyPara && editor.contains(emptyPara) && isEmptyParagraph(emptyPara)) {
+        const prev = emptyPara.previousElementSibling;
+        if (prev && hasImage(prev)) {
+          emptyPara.remove();
+          placeCursorAfter(prev);
+          return true;
+        }
+      }
+
+      // Case 2: caret is on the image block itself; remove the next empty paragraph.
+      const imageBlock = element.closest('figure, p');
+      if (imageBlock && editor.contains(imageBlock) && hasImage(imageBlock)) {
+        const next = imageBlock.nextElementSibling;
+        if (next && isEmptyParagraph(next)) {
+          next.remove();
+          placeCursorAfter(imageBlock);
+          return true;
+        }
+      }
+
+      return false;
+    })()
+  `);
+
+  if (removed) console.log('[wechat] Removed extra empty line after image.');
+  return removed;
+}
+
 export async function postArticle(options: ArticleOptions): Promise<void> {
  const { title, content, htmlFile, markdownFile, theme, author, summary, images = [], submit = false, profileDir, cdpPort } = options;
  let { contentImages = [] } = options;
@@ -445,11 +519,6 @@ export async function postArticle(options: ArticleOptions): Promise<void> {
      await evaluate(session, `document.querySelector('#author').value = ${JSON.stringify(effectiveAuthor)}; document.querySelector('#author').dispatchEvent(new Event('input', { bubbles: true }));`);
    }

-    if (effectiveSummary) {
-      console.log(`[wechat] Filling summary: ${effectiveSummary}`);
-      await evaluate(session, `document.querySelector('#js_description').value = ${JSON.stringify(effectiveSummary)}; document.querySelector('#js_description').dispatchEvent(new Event('input', { bubbles: true }));`);
-    }
-
    await sleep(500);

    if (effectiveTitle) {
@@ -461,15 +530,6 @@ export async function postArticle(options: ArticleOptions): Promise<void> {
      }
    }

-    if (effectiveSummary) {
-      const actualSummary = await evaluate<string>(session, `document.querySelector('#js_description')?.value || ''`);
-      if (actualSummary === effectiveSummary) {
-        console.log('[wechat] Summary verified OK.');
-      } else {
-        console.warn(`[wechat] Summary verification failed. Expected: "${effectiveSummary}", got: "${actualSummary}"`);
-      }
-    }
-
    console.log('[wechat] Clicking on editor...');
    await clickElement(session, '.ProseMirror');
    await sleep(1000);
@@ -525,6 +585,7 @@ export async function postArticle(options: ArticleOptions): Promise<void> {
          console.log('[wechat] Pasting image...');
          await pasteFromClipboardInEditor(session);
          await sleep(3000);
+          await removeExtraEmptyLineAfterImage(session);
        }
        console.log('[wechat] All images inserted.');
      }
@@ -536,6 +597,7 @@ export async function postArticle(options: ArticleOptions): Promise<void> {
          await sleep(500);
          await pasteInEditor(session);
          await sleep(2000);
+          await removeExtraEmptyLineAfterImage(session);
        }
      }

@@ -558,6 +620,30 @@ export async function postArticle(options: ArticleOptions): Promise<void> {
      }
    }

+    if (effectiveSummary) {
+      console.log(`[wechat] Filling summary (after content paste): ${effectiveSummary}`);
+      await evaluate(session, `
+        (function() {
+          const el = document.querySelector('#js_description');
+          if (!el) return;
+          el.focus();
+          el.select();
+          el.value = ${JSON.stringify(effectiveSummary)};
+          el.dispatchEvent(new Event('input', { bubbles: true }));
+          el.dispatchEvent(new Event('change', { bubbles: true }));
+          el.dispatchEvent(new Event('blur', { bubbles: true }));
+        })()
+      `);
+      await sleep(500);
+
+      const actualSummary = await evaluate<string>(session, `document.querySelector('#js_description')?.value || ''`);
+      if (actualSummary === effectiveSummary) {
+        console.log('[wechat] Summary verified OK.');
+      } else {
+        console.warn(`[wechat] Summary verification failed. Expected: "${effectiveSummary}", got: "${actualSummary}"`);
+      }
+    }
+
    console.log('[wechat] Saving as draft...');
    await evaluate(session, `document.querySelector('#js_submit button').click()`);
    await sleep(3000);
@@ -61,6 +61,25 @@ interface ArticleOptions {
  chromePath?: string;
 }

+async function findExistingDebugPort(profileDir: string): Promise<number | null> {
+  const portFile = path.join(profileDir, 'DevToolsActivePort');
+  if (!fs.existsSync(portFile)) return null;
+
+  try {
+    const content = fs.readFileSync(portFile, 'utf-8').trim();
+    if (!content) return null;
+    const [portLine] = content.split(/\r?\n/);
+    const port = Number(portLine);
+    if (!Number.isFinite(port) || port <= 0) return null;
+
+    // Verify the port is actually active.
+    await waitForChromeDebugPort(port, 1500, { includeLastError: true });
+    return port;
+  } catch {
+    return null;
+  }
+}
+
 export async function publishArticle(options: ArticleOptions): Promise<void> {
  const { markdownPath, submit = false, profileDir = getDefaultProfileDir() } = options;

@@ -83,28 +102,33 @@ export async function publishArticle(options: ArticleOptions): Promise<void> {
  if (!chromePath) throw new Error('Chrome not found');

  await mkdir(profileDir, { recursive: true });
-  const port = await getFreePort();
+  const existingPort = await findExistingDebugPort(profileDir);
+  const port = existingPort ?? await getFreePort();

-  console.log(`[x-article] Launching Chrome...`);
-  const chrome = spawn(chromePath, [
-    `--remote-debugging-port=${port}`,
-    `--user-data-dir=${profileDir}`,
-    '--no-first-run',
-    '--no-default-browser-check',
-    '--disable-blink-features=AutomationControlled',
-    '--start-maximized',
-    X_ARTICLES_URL,
-  ], { stdio: 'ignore' });
+  if (existingPort) {
+    console.log(`[x-article] Reusing existing Chrome instance on port ${port}`);
+  } else {
+    console.log(`[x-article] Launching Chrome...`);
+    spawn(chromePath, [
+      `--remote-debugging-port=${port}`,
+      `--user-data-dir=${profileDir}`,
+      '--no-first-run',
+      '--no-default-browser-check',
+      '--disable-blink-features=AutomationControlled',
+      '--start-maximized',
+      X_ARTICLES_URL,
+    ], { stdio: 'ignore' });
+  }

  let cdp: CdpConnection | null = null;

  try {
-    const wsUrl = await waitForChromeDebugPort(port, 30_000);
+    const wsUrl = await waitForChromeDebugPort(port, 30_000, { includeLastError: true });
    cdp = await CdpConnection.connect(wsUrl, 30_000, { defaultTimeoutMs: 30_000 });

    // Get page target
    const targets = await cdp.send<{ targetInfos: Array<{ targetId: string; url: string; type: string }> }>('Target.getTargets');
-    let pageTarget = targets.targetInfos.find((t) => t.type === 'page' && t.url.includes('x.com'));
+    let pageTarget = targets.targetInfos.find((t) => t.type === 'page' && t.url.startsWith(X_ARTICLES_URL));

    if (!pageTarget) {
      const { targetId } = await cdp.send<{ targetId: string }>('Target.createTarget', { url: X_ARTICLES_URL });
@@ -409,15 +433,23 @@ export async function publishArticle(options: ArticleOptions): Promise<void> {

      console.log('[x-article] Checking for placeholders in content...');
      for (const img of parsed.contentImages) {
-        if (editorContent.result.value.includes(img.placeholder)) {
+        // Use regex for exact match (not followed by digit, e.g., XIMGPH_1 should not match XIMGPH_10)
+        const regex = new RegExp(img.placeholder + '(?!\\d)');
+        if (regex.test(editorContent.result.value)) {
          console.log(`[x-article] Found: ${img.placeholder}`);
        } else {
          console.log(`[x-article] NOT found: ${img.placeholder}`);
        }
      }

-      // Process images in sequential order (1, 2, 3, ...)
-      const sortedImages = [...parsed.contentImages].sort((a, b) => a.blockIndex - b.blockIndex);
+      // Process images in XIMGPH order (1, 2, 3, ...) regardless of blockIndex
+      const getPlaceholderIndex = (placeholder: string): number => {
+        const match = placeholder.match(/XIMGPH_(\d+)/);
+        return match ? Number(match[1]) : Number.POSITIVE_INFINITY;
+      };
+      const sortedImages = [...parsed.contentImages].sort(
+        (a, b) => getPlaceholderIndex(a.placeholder) - getPlaceholderIndex(b.placeholder),
+      );

      for (let i = 0; i < sortedImages.length; i++) {
        const img = sortedImages[i]!;
@@ -440,22 +472,30 @@ export async function publishArticle(options: ArticleOptions): Promise<void> {

                while ((node = walker.nextNode())) {
                  const text = node.textContent || '';
-                  const idx = text.indexOf(placeholder);
-                  if (idx !== -1) {
-                    // Found the placeholder - scroll to it first
-                    const parentElement = node.parentElement;
-                    if (parentElement) {
-                      parentElement.scrollIntoView({ behavior: 'smooth', block: 'center' });
-                    }
+                  let searchStart = 0;
+                  let idx;
+                  // Search for exact match (not prefix of longer placeholder like XIMGPH_1 in XIMGPH_10)
+                  while ((idx = text.indexOf(placeholder, searchStart)) !== -1) {
+                    const afterIdx = idx + placeholder.length;
+                    const charAfter = text[afterIdx];
+                    // Exact match if next char is not a digit (XIMGPH_1 should not match XIMGPH_10)
+                    if (charAfter === undefined || !/\\d/.test(charAfter)) {
+                      // Found exact placeholder - scroll to it first
+                      const parentElement = node.parentElement;
+                      if (parentElement) {
+                        parentElement.scrollIntoView({ behavior: 'smooth', block: 'center' });
+                      }

-                    // Select it
-                    const range = document.createRange();
-                    range.setStart(node, idx);
-                    range.setEnd(node, idx + placeholder.length);
-                    const sel = window.getSelection();
-                    sel.removeAllRanges();
-                    sel.addRange(range);
-                    return true;
+                      // Select it
+                      const range = document.createRange();
+                      range.setStart(node, idx);
+                      range.setEnd(node, idx + placeholder.length);
+                      const sel = window.getSelection();
+                      sel.removeAllRanges();
+                      sel.addRange(range);
+                      return true;
+                    }
+                    searchStart = afterIdx;
                  }
                }
                return false;
@@ -505,31 +545,54 @@ export async function publishArticle(options: ArticleOptions): Promise<void> {
        // Wait for clipboard to be fully ready
        await sleep(1000);

-        // Delete placeholder by pressing Backspace (more reliable than Enter for replacing selection)
+        // Delete placeholder using execCommand (more reliable than keyboard events for DraftJS)
        console.log(`[x-article] Deleting placeholder...`);
-        await cdp.send('Input.dispatchKeyEvent', { type: 'keyDown', key: 'Backspace', code: 'Backspace', windowsVirtualKeyCode: 8 }, { sessionId });
-        await cdp.send('Input.dispatchKeyEvent', { type: 'keyUp', key: 'Backspace', code: 'Backspace', windowsVirtualKeyCode: 8 }, { sessionId });
+        const deleteResult = await cdp.send<{ result: { value: boolean } }>('Runtime.evaluate', {
+          expression: `(() => {
+            const sel = window.getSelection();
+            if (!sel || sel.isCollapsed) return false;
+            // Try execCommand delete first
+            if (document.execCommand('delete', false)) return true;
+            // Fallback: replace selection with empty using insertText
+            document.execCommand('insertText', false, '');
+            return true;
+          })()`,
+          returnByValue: true,
+        }, { sessionId });

-        // Wait and verify placeholder is deleted
        await sleep(500);

-        // Check that placeholder is no longer in editor
+        // Check that placeholder is no longer in editor (exact match, not substring)
        const afterDelete = await cdp.send<{ result: { value: boolean } }>('Runtime.evaluate', {
          expression: `(() => {
            const editor = document.querySelector('.DraftEditor-editorContainer [data-contents="true"]');
            if (!editor) return true;
-            return !editor.innerText.includes(${JSON.stringify(img.placeholder)});
+            const text = editor.innerText;
+            const placeholder = ${JSON.stringify(img.placeholder)};
+            // Use regex to find exact match (not followed by digit)
+            const regex = new RegExp(placeholder + '(?!\\\\d)');
+            return !regex.test(text);
          })()`,
          returnByValue: true,
        }, { sessionId });

        if (!afterDelete.result.value) {
-          console.warn(`[x-article] Placeholder may not have been deleted, trying again...`);
-          // Try selecting and deleting again
+          console.warn(`[x-article] Placeholder may not have been deleted, trying dispatchEvent...`);
+          // Try selecting and deleting with InputEvent
          await selectPlaceholder(1);
          await sleep(300);
-          await cdp.send('Input.dispatchKeyEvent', { type: 'keyDown', key: 'Backspace', code: 'Backspace', windowsVirtualKeyCode: 8 }, { sessionId });
-          await cdp.send('Input.dispatchKeyEvent', { type: 'keyUp', key: 'Backspace', code: 'Backspace', windowsVirtualKeyCode: 8 }, { sessionId });
+          await cdp.send('Runtime.evaluate', {
+            expression: `(() => {
+              const editor = document.querySelector('.DraftEditor-editorContainer [contenteditable="true"]');
+              if (!editor) return;
+              editor.focus();
+              // Dispatch beforeinput and input events for deletion
+              const beforeEvent = new InputEvent('beforeinput', { inputType: 'deleteContentBackward', bubbles: true, cancelable: true });
+              editor.dispatchEvent(beforeEvent);
+              const inputEvent = new InputEvent('input', { inputType: 'deleteContentBackward', bubbles: true });
+              editor.dispatchEvent(inputEvent);
+            })()`,
+          }, { sessionId });
          await sleep(500);
        }
Author	SHA1	Message	Date
Jim Liu 宝玉	7465f37dcf	chore: release v1.30.3	2026-02-06 16:22:02 -06:00
Jim Liu 宝玉	38a1b90db3	refactor(baoyu-article-illustrator): optimize SKILL.md from 197 to 150 lines	2026-02-06 16:21:58 -06:00
Jim Liu 宝玉	b53a5db60a	chore: release v1.30.2	2026-02-06 16:13:51 -06:00
Jim Liu 宝玉	372e03cef3	refactor(baoyu-cover-image): optimize SKILL.md from 532 to 233 lines	2026-02-06 16:13:47 -06:00
Jim Liu 宝玉	ea8ad82786	chore: release v1.30.1	2026-02-06 16:07:34 -06:00
Jim Liu 宝玉	6fffe252c0	fix(baoyu-cover-image): enhance reference image analysis and prompt generation - Add deep analysis template for extracting specific visual elements - Require MUST INCORPORATE section with concrete, reproducible details - Add integration approach for spatial layout instructions - Clarify ref-capable backend requirements (Google/OpenAI)	2026-02-06 16:07:09 -06:00
Jim Liu 宝玉	86a84739e8	feat(baoyu-image-gen): add OpenAI GPT Image edits support for reference images - Support --ref with OpenAI GPT Image models (gpt-image-1.5) - Auto-select Google or OpenAI when --ref provided - Change ref-related warnings to explicit errors with fix hints - Add reference image validation before generation - Improve retry logic to skip non-retryable errors	2026-02-06 16:06:58 -06:00
Jim Liu 宝玉	7f80100b3e	chore: release v1.30.0	2026-02-06 14:56:00 -06:00
Jim Liu 宝玉	61960961ba	feat(baoyu-cover-image): add font dimension with 4 styles Add 6th dimension for typography control: - clean: modern geometric sans-serif - handwritten: warm hand-lettered style - serif: classic elegant typography - display: bold decorative headlines Includes auto-selection rules, compatibility matrix, and warm-flat preset. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-06 14:55:11 -06:00
Jim Liu 宝玉	cdd9ee042d	chore: release v1.29.0	2026-02-06 13:36:08 -06:00
Jim Liu 宝玉	c742bfa1af	fix(baoyu-url-to-markdown): improve html extraction and markdown conversion	2026-02-06 13:35:28 -06:00
Jim Liu 宝玉	0faea4ecaa	Merge pull request #38 from kingdomad/feature/baoyu-image-gen-extend-config add EXTEND.md configuration support	2026-02-05 23:10:11 -06:00
Jim Liu 宝玉	7c9ec259a1	Merge pull request #36 from NantesCheval/fix/wechat-title-and-list-duplication fix(baoyu-post-to-wechat): fix title and list number duplication in WeChat articles	2026-02-05 23:09:17 -06:00
史提芬达	24a17709a8	add EXTEND.md configuration support	2026-02-05 19:46:22 +08:00
AlexCheval	a3849af0cf	fix(baoyu-post-to-wechat): fix title and list number duplication in WeChat articles - Remove title from body content when extracting it for WeChat title field to prevent duplicate title display (one in header, one in content) - Remove manual ordered list prefix since HTML <ol> already provides numbering, preventing "1.1.", "2.2.", "3.3." duplication Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-05 10:04:34 +08:00
Jim Liu 宝玉	cc95e6fe05	chore: release v1.28.4	2026-02-03 11:49:41 -06:00
Jim Liu 宝玉	e7d9ed7917	fix(baoyu-post-to-wechat): remove extra empty lines after image paste and fix summary timing Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 11:49:13 -06:00
Jim Liu 宝玉	876c6332f6	feat(baoyu-markdown-to-html): add HTML meta tags and quote stripping for frontmatter Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>	2026-02-03 11:49:07 -06:00
Jim Liu 宝玉	502d2448b2	chore: release v1.28.3	2026-02-03 11:06:59 -06:00
Jim Liu 宝玉	b9e48d9483	fix(baoyu-post-to-wechat): fix placeholder matching to avoid WECHATIMGPH_1 matching WECHATIMGPH_10	2026-02-03 11:06:41 -06:00
Jim Liu 宝玉	b0554f8d0c	chore: release v1.28.2	2026-02-03 11:01:25 -06:00
Jim Liu 宝玉	12f3d95639	fix(baoyu-post-to-x): improve Chrome reuse and placeholder matching in x-article	2026-02-03 11:01:09 -06:00
Jim Liu 宝玉	809fb29ca9	chore: release v1.28.1	2026-02-02 09:11:49 -06:00
Jim Liu 宝玉	be20bdf0be	refactor(baoyu-article-illustrator): simplify SKILL.md and add Core Styles tier - Extract detailed workflow to references/workflow.md - Add Core Styles for quick selection (vector, minimal-flat, sci-fi, hand-drawn, editorial, scene) - Add vector-illustration as recommended default style - Add Illustration Purpose (information/visualization/imagination) - Add default composition, character rendering, text styling to prompts	2026-02-02 09:11:43 -06:00