baoyu-post-to-wechat

name	baoyu-post-to-wechat
description	Posts content to WeChat Official Account (微信公众号) via API or Chrome CDP. Supports article posting (文章) with HTML, markdown, or plain text input, and image-text posting (图文) with multiple images. Use when user mentions "发布公众号", "post to wechat", "微信公众号", or "图文/文章".

Post to WeChat Official Account

Language

Match user's language: Respond in the same language the user uses. If user writes in Chinese, respond in Chinese. If user writes in English, respond in English.

Script Directory

Agent Execution: Determine this SKILL.md directory as SKILL_DIR, then use ${SKILL_DIR}/scripts/<name>.ts.

Script	Purpose
scripts/wechat-browser.ts	Image-text posts (图文)
scripts/wechat-article.ts	Article posting via browser (文章)
scripts/wechat-api.ts	Article posting via API (文章)

Preferences (EXTEND.md)

Use Bash to check EXTEND.md existence (priority order):

# Check project-level first
test -f .baoyu-skills/baoyu-post-to-wechat/EXTEND.md && echo "project"

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

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

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

EXTEND.md Supports: Default theme | Default publishing method (api/browser) | Default author | Chrome profile path

Image-Text Posting (图文)

For short posts with multiple images (up to 9):

npx -y bun ${SKILL_DIR}/scripts/wechat-browser.ts --markdown article.md --images ./images/
npx -y bun ${SKILL_DIR}/scripts/wechat-browser.ts --title "标题" --content "内容" --image img.png --submit

See references/image-text-posting.md for details.

Article Posting Workflow (文章)

Copy this checklist and check off items as you complete them:

Publishing Progress:
- [ ] Step 0: Load preferences (EXTEND.md)
- [ ] Step 1: Determine input type
- [ ] Step 2: Check markdown-to-html skill
- [ ] Step 3: Convert to HTML
- [ ] Step 4: Validate metadata (title, summary)
- [ ] Step 5: Select method and configure credentials
- [ ] Step 6: Publish to WeChat
- [ ] Step 7: Report completion

Step 0: Load Preferences

Check and load EXTEND.md settings (see Preferences section above).

Step 1: Determine Input Type

Input Type	Detection	Action
HTML file	Path ends with .html, file exists	Skip to Step 4
Markdown file	Path ends with .md, file exists	Continue to Step 2
Plain text	Not a file path, or file doesn't exist	Save to markdown, then Step 2

Plain Text Handling:

1. Generate slug from content (first 2-4 meaningful words, kebab-case)
2. Create directory and save file:

mkdir -p "$(pwd)/post-to-wechat/$(date +%Y-%m-%d)"
# Save content to: post-to-wechat/yyyy-MM-dd/[slug].md

3. Continue processing as markdown file

Slug Examples:

• "Understanding AI Models" → understanding-ai-models
• "人工智能的未来" → ai-future (translate to English for slug)

Step 2: Check Markdown-to-HTML Skill

Skip if: Input is .html file

Skill Discovery:

# Check if baoyu-markdown-to-html exists
test -f skills/baoyu-markdown-to-html/SKILL.md && echo "found"

Result	Action
Found	Read its SKILL.md, continue to Step 3
Multiple skills	AskUserQuestion to choose
Not found	Show installation suggestion

When Not Found:

No markdown-to-html skill found.

Suggested installation:
https://github.com/JimLiu/baoyu-skills/blob/main/skills/baoyu-markdown-to-html/SKILL.md

Options:
A) Cancel - install the skill first
B) Continue - provide HTML file manually

Step 3: Convert Markdown to HTML

Skip if: Input is .html file

1. Ask theme preference (unless specified in EXTEND.md or CLI):

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
simple	简洁主题 - 现代极简风，不对称圆角，清爽留白

2. Execute conversion (using the discovered skill):

npx -y bun ${MD_TO_HTML_SKILL_DIR}/scripts/main.ts <markdown_file> --theme <theme>

3. Parse JSON output to get: htmlPath, title, author, summary, contentImages

Step 4: Validate Metadata

Check extracted metadata from Step 3 (or HTML meta tags if direct HTML input).

Field	If Missing
Title	Prompt: "Enter title, or press Enter to auto-generate from content"
Summary	Prompt: "Enter summary, or press Enter to auto-generate (recommended for SEO)"

Auto-Generation Logic:

• Title: First H1/H2 heading, or first sentence
• Summary: First paragraph, truncated to 120 characters

Step 5: Select Publishing Method and Configure

Ask publishing method (unless specified in EXTEND.md or CLI):

Method	Speed	Requirements
api (Recommended)	Fast	API credentials
browser	Slow	Chrome, login session

If API Selected - Check Credentials:

# Check project-level
test -f .baoyu-skills/.env && grep -q "WECHAT_APP_ID" .baoyu-skills/.env && echo "project"

# Check user-level
test -f "$HOME/.baoyu-skills/.env" && grep -q "WECHAT_APP_ID" "$HOME/.baoyu-skills/.env" && echo "user"

If Credentials Missing - Guide Setup:

WeChat API credentials not found.

To obtain credentials:
1. Visit https://mp.weixin.qq.com
2. Go to: 开发 → 基本配置
3. Copy AppID and AppSecret

Where to save?
A) Project-level: .baoyu-skills/.env (this project only)
B) User-level: ~/.baoyu-skills/.env (all projects)

After location choice, prompt for values and write to .env:

WECHAT_APP_ID=<user_input>
WECHAT_APP_SECRET=<user_input>

Step 6: Publish to WeChat

API method:

npx -y bun ${SKILL_DIR}/scripts/wechat-api.ts <html_file> [--title <title>] [--summary <summary>]

Browser method:

npx -y bun ${SKILL_DIR}/scripts/wechat-article.ts --html <html_file>

Step 7: Completion Report

For API method, include draft management link:

WeChat Publishing Complete!

Input: [type] - [path]
Method: API
Theme: [theme name]

Article:
• Title: [title]
• Summary: [summary]
• Images: [N] inline images

Result:
✓ Draft saved to WeChat Official Account
• media_id: [media_id]

Next Steps:
→ Manage drafts: https://mp.weixin.qq.com (登录后进入「内容管理」→「草稿箱」)

Files created:
[• post-to-wechat/yyyy-MM-dd/slug.md (if plain text)]
[• slug.html (converted)]

For Browser method:

WeChat Publishing Complete!

Input: [type] - [path]
Method: Browser
Theme: [theme name]

Article:
• Title: [title]
• Summary: [summary]
• Images: [N] inline images

Result:
✓ Draft saved to WeChat Official Account

Files created:
[• post-to-wechat/yyyy-MM-dd/slug.md (if plain text)]
[• slug.html (converted)]

Detailed References

Topic	Reference
Image-text parameters, auto-compression	references/image-text-posting.md
Article themes, image handling	references/article-posting.md

Feature Comparison

Feature	Image-Text	Article (API)	Article (Browser)
Plain text input	✗	✓	✓
HTML input	✗	✓	✓
Markdown input	Title/content	✓ (via skill)	✓ (via skill)
Multiple images	✓ (up to 9)	✓ (inline)	✓ (inline)
Themes	✗	✓	✓
Auto-generate metadata	✗	✓	✓
Requires Chrome	✓	✗	✓
Requires API credentials	✗	✓	✗
Speed	Medium	Fast	Slow

Prerequisites

For API method:

• WeChat Official Account API credentials
• Guided setup in Step 5, or manually set in .baoyu-skills/.env

For Browser method:

• Google Chrome
• First run: log in to WeChat Official Account (session preserved)

For Markdown conversion:

• A markdown-to-html skill (e.g., baoyu-markdown-to-html)
• If not installed, the workflow will suggest installation

Config File Locations (priority order):

1. Environment variables
2. <cwd>/.baoyu-skills/.env
3. ~/.baoyu-skills/.env

Troubleshooting

Issue	Solution
No markdown-to-html skill	Install baoyu-markdown-to-html from suggested URL
Missing API credentials	Follow guided setup in Step 5
Access token error	Check if API credentials are valid and not expired
Not logged in (browser)	First run opens browser - scan QR to log in
Chrome not found	Set WECHAT_BROWSER_CHROME_PATH env var
Title/summary missing	Use auto-generation or provide manually
Paste fails	Check system clipboard permissions

Extension Support

Custom configurations via EXTEND.md. See Preferences section for paths and supported options.