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):

# Check project-level first
test -f .tuzi-skills/tuzi-markdown-to-html/EXTEND.md && echo "project"

# Then user-level (cross-platform: $HOME works on macOS/Linux/WSL)
test -f "$HOME/.tuzi-skills/tuzi-markdown-to-html/EXTEND.md" && echo "user"

┌──────────────────────────────────────────────────────────────┬───────────────────┐ │ Path │ Location │ ├──────────────────────────────────────────────────────────────┼───────────────────┤ │ .tuzi-skills/tuzi-markdown-to-html/EXTEND.md │ Project directory │ ├──────────────────────────────────────────────────────────────┼───────────────────┤ │ $HOME/.tuzi-skills/tuzi-markdown-to-html/EXTEND.md │ User home │ └──────────────────────────────────────────────────────────────┴───────────────────┘

┌───────────┬───────────────────────────────────────────────────────────────────────────┐ │ Result │ Action │ ├───────────┼───────────────────────────────────────────────────────────────────────────┤ │ Found │ Read, parse, apply settings │ ├───────────┼───────────────────────────────────────────────────────────────────────────┤ │ Not found │ Use defaults │ └───────────┴───────────────────────────────────────────────────────────────────────────┘

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 → skip to Step 1

Format Suggestion:

If CJK content detected AND tuzi-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 tuzi-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. tuzi-post-to-wechat EXTEND.md default_theme (cross-skill fallback)
4. If none found → use AskUserQuestion to confirm

Cross-skill EXTEND.md check (only if this skill's EXTEND.md has no default_theme):

# Check tuzi-post-to-wechat EXTEND.md for default_theme
test -f "$HOME/.tuzi-skills/tuzi-post-to-wechat/EXTEND.md" && grep -o 'default_theme:.*' "$HOME/.tuzi-skills/tuzi-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)	经典主题 - 传统排版，标题居中带底边，二级标题白字彩底
grace	优雅主题 - 文字阴影，圆角卡片，精致引用块
simple	简洁主题 - 现代极简风，不对称圆角，清爽留白
modern	现代主题 - 大圆角、药丸形标题、宽松行距（搭配 --color red 还原传统红金风格）

Step 2: Convert

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

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	经典蓝
green	#009874	翡翠绿
vermilion	#FA5151	活力橘
yellow	#FECE00	柠檬黄
purple	#92617E	薰衣紫
sky	#55C9EA	天空蓝
rose	#B76E79	玫瑰金
olive	#556B2F	橄榄绿
black	#333333	石墨黑
gray	#A9A9A9	雾烟灰
pink	#FFB7C5	樱花粉
red	#A93226	中国红
orange	#D97757	暖橘 (modern default)

Examples:

# 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:

{
  "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	经典主题 - 传统排版，标题居中带底边，二级标题白字彩底
grace	优雅主题 - 文字阴影，圆角卡片，精致引用块 (by @brzhang)
simple	简洁主题 - 现代极简风，不对称圆角，清爽留白 (by @okooo5km)
modern	现代主题 - 大圆角、药丸形标题、宽松行距（搭配 --color red 还原传统红金风格）

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
Mermaid	```mermaid diagrams
PlantUML	```plantuml diagrams

Frontmatter

Supports YAML frontmatter for metadata:

---
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.