- name
- baoyu-markdown-to-html
- description
- Converts Markdown to styled HTML with WeChat-compatible themes. Supports code highlighting, math, PlantUML, footnotes, alerts, and infographics. Use when user asks for "markdown to html", "convert md to html", "md่ฝฌhtml", or needs styled HTML output from markdown.
# Markdown to HTML Converter
Converts Markdown files to beautifully styled HTML with inline CSS, optimized for WeChat Official Account and other platforms.
## Script Directory
**Agent Execution**: Determine this SKILL.md directory as `SKILL_DIR`, then use `${SKILL_DIR}/scripts/<name>.ts`.
| Script | Purpose |
|--------|---------|
| `scripts/main.ts` | Main entry point |
## Preferences (EXTEND.md)
Use Bash to check EXTEND.md existence (priority order):
```bash
# Check project-level first
test -f .baoyu-skills/baoyu-markdown-to-html/EXTEND.md && echo "project"
# Then user-level (cross-platform: $HOME works on macOS/Linux/WSL)
test -f "$HOME/.baoyu-skills/baoyu-markdown-to-html/EXTEND.md" && echo "user"
```
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโฌโโโโโโโโโโโโโโโโโโโโ
โ Path โ Location โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโค
โ .baoyu-skills/baoyu-markdown-to-html/EXTEND.md โ Project directory โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโค
โ $HOME/.baoyu-skills/baoyu-markdown-to-html/EXTEND.md โ User home โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโดโโโโโโโโโโโโโโโโโโโโ
โโโโโโโโโโโโโฌโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ Result โ Action โ
โโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโค
โ Found โ Read, parse, apply settings โ
โโโโโโโโโโโโโผโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโค
โ Not found โ Use defaults โ
โโโโโโโโโโโโโดโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
**EXTEND.md Supports**: Default theme | Custom CSS variables | Code block style
## Workflow
### Step 0: Pre-check (Chinese Content)
**Condition**: Only execute if input file contains Chinese text.
**Detection**:
1. Read input markdown file
2. Check if content contains CJK characters (Chinese/Japanese/Korean)
3. If no CJK content โ skip to Step 1
**Format Suggestion**:
If CJK content detected AND `baoyu-format-markdown` skill is available:
Use `AskUserQuestion` to ask whether to format first. Formatting can fix:
- Bold markers with punctuation inside causing `**` parse failures
- CJK/English spacing issues
**If user agrees**: Invoke `baoyu-format-markdown` skill to format the file, then use formatted file as input.
**If user declines**: Continue with original file.
### Step 1: Determine Theme
**Theme resolution order** (first match wins):
1. User explicitly specified theme (CLI `--theme` or conversation)
2. EXTEND.md `default_theme` (this skill's own EXTEND.md, checked in Step 0)
3. `baoyu-post-to-wechat` EXTEND.md `default_theme` (cross-skill fallback)
4. If none found โ use AskUserQuestion to confirm
**Cross-skill EXTEND.md check** (only if this skill's EXTEND.md has no `default_theme`):
```bash
# Check baoyu-post-to-wechat EXTEND.md for default_theme
test -f "$HOME/.baoyu-skills/baoyu-post-to-wechat/EXTEND.md" && grep -o 'default_theme:.*' "$HOME/.baoyu-skills/baoyu-post-to-wechat/EXTEND.md"
```
**If theme is resolved from EXTEND.md**: Use it directly, do NOT ask the user.
**If no default found**: Use AskUserQuestion to confirm:
| Theme | Description |
|-------|-------------|
| `default` (Recommended) | ็ปๅ
ธไธป้ข - ไผ ็ปๆ็๏ผๆ ้ขๅฑ
ไธญๅธฆๅบ่พน๏ผไบ็บงๆ ้ข็ฝๅญๅฝฉๅบ |
| `grace` | ไผ้
ไธป้ข - ๆๅญ้ดๅฝฑ๏ผๅ่งๅก็๏ผ็ฒพ่ดๅผ็จๅ |
| `simple` | ็ฎๆดไธป้ข - ็ฐไปฃๆ็ฎ้ฃ๏ผไธๅฏน็งฐๅ่ง๏ผๆธ
็ฝ็็ฝ |
| `modern` | ็ฐไปฃไธป้ข - ๅคงๅ่งใ่ฏไธธๅฝขๆ ้ขใๅฎฝๆพ่ก่ท๏ผๆญ้
`--color red` ่ฟๅไผ ็ป็บข้้ฃๆ ผ๏ผ |
### Step 2: Convert
```bash
npx -y bun ${SKILL_DIR}/scripts/main.ts <markdown_file> --theme <theme>
```
### Step 3: Report Result
Display the output path from JSON result. If backup was created, mention it.
## Usage
```bash
npx -y bun ${SKILL_DIR}/scripts/main.ts <markdown_file> [options]
```
**Options:**
| Option | Description | Default |
|--------|-------------|---------|
| `--theme <name>` | Theme name (default, grace, simple, modern) | default |
| `--color <name\|hex>` | Primary color: preset name or hex value | theme default |
| `--font-family <name>` | Font: sans, serif, serif-cjk, mono, or CSS value | theme default |
| `--font-size <N>` | Font size: 14px, 15px, 16px, 17px, 18px | 16px |
| `--title <title>` | Override title from frontmatter | |
| `--keep-title` | Keep the first heading in content | false (removed) |
| `--help` | Show help | |
**Color Presets:**
| Name | Hex | Label |
|------|-----|-------|
| blue | #0F4C81 | ็ปๅ
ธ่ |
| green | #009874 | ็ฟก็ฟ ็ปฟ |
| vermilion | #FA5151 | ๆดปๅๆฉ |
| yellow | #FECE00 | ๆ ๆชฌ้ป |
| purple | #92617E | ่ฐ่กฃ็ดซ |
| sky | #55C9EA | ๅคฉ็ฉบ่ |
| rose | #B76E79 | ็ซ็ฐ้ |
| olive | #556B2F | ๆฉๆฆ็ปฟ |
| black | #333333 | ็ณๅขจ้ป |
| gray | #A9A9A9 | ้พ็็ฐ |
| pink | #FFB7C5 | ๆจฑ่ฑ็ฒ |
| red | #A93226 | ไธญๅฝ็บข |
| orange | #D97757 | ๆๆฉ (modern default) |
**Examples:**
```bash
# Basic conversion (uses default theme, removes first heading)
npx -y bun ${SKILL_DIR}/scripts/main.ts article.md
# With specific theme
npx -y bun ${SKILL_DIR}/scripts/main.ts article.md --theme grace
# Theme with custom color
npx -y bun ${SKILL_DIR}/scripts/main.ts article.md --theme modern --color red
# Keep the first heading in content
npx -y bun ${SKILL_DIR}/scripts/main.ts article.md --keep-title
# Override title
npx -y bun ${SKILL_DIR}/scripts/main.ts article.md --title "My Article"
```
## Output
**File location**: Same directory as input markdown file.
- Input: `/path/to/article.md`
- Output: `/path/to/article.html`
**Conflict handling**: If HTML file already exists, it will be backed up first:
- Backup: `/path/to/article.html.bak-YYYYMMDDHHMMSS`
**JSON output to stdout:**
```json
{
"title": "Article Title",
"author": "Author Name",
"summary": "Article summary...",
"htmlPath": "/path/to/article.html",
"backupPath": "/path/to/article.html.bak-20260128180000",
"contentImages": [
{
"placeholder": "MDTOHTMLIMGPH_1",
"localPath": "/path/to/img.png",
"originalPath": "imgs/image.png"
}
]
}
```
## Themes
| Theme | Description |
|-------|-------------|
| `default` | ็ปๅ
ธไธป้ข - ไผ ็ปๆ็๏ผๆ ้ขๅฑ
ไธญๅธฆๅบ่พน๏ผไบ็บงๆ ้ข็ฝๅญๅฝฉๅบ |
| `grace` | ไผ้
ไธป้ข - ๆๅญ้ดๅฝฑ๏ผๅ่งๅก็๏ผ็ฒพ่ดๅผ็จๅ (by @brzhang) |
| `simple` | ็ฎๆดไธป้ข - ็ฐไปฃๆ็ฎ้ฃ๏ผไธๅฏน็งฐๅ่ง๏ผๆธ
็ฝ็็ฝ (by @okooo5km) |
| `modern` | ็ฐไปฃไธป้ข - ๅคงๅ่งใ่ฏไธธๅฝขๆ ้ขใๅฎฝๆพ่ก่ท๏ผๆญ้
`--color red` ่ฟๅไผ ็ป็บข้้ฃๆ ผ๏ผ |
## Supported Markdown Features
| Feature | Syntax |
|---------|--------|
| Headings | `# H1` to `###### H6` |
| Bold/Italic | `**bold**`, `*italic*` |
| Code blocks | ` ```lang ` with syntax highlighting |
| Inline code | `` `code` `` |
| Tables | GitHub-flavored markdown tables |
| Images | `` |
| Links | `[text](url)` with footnote references |
| Blockquotes | `> quote` |
| Lists | `-` unordered, `1.` ordered |
| Alerts | `> [!NOTE]`, `> [!WARNING]`, etc. |
| Footnotes | `[^1]` references |
| Ruby text | `{base|annotation}` |
| Mermaid | ` ```mermaid ` diagrams |
| PlantUML | ` ```plantuml ` diagrams |
## Frontmatter
Supports YAML frontmatter for metadata:
```yaml
---
title: Article Title
author: Author Name
description: Article summary
---
```
If no title is found, extracts from first H1/H2 heading or uses filename.
## Extension Support
Custom configurations via EXTEND.md. See **Preferences** section for paths and supported options.
View on GitHub