yux-publish-wechat

name	yux-publish-wechat
description	Post content to WeChat Official Account (微信公众号). Triggers on "发布公众号", "post to wechat", "微信公众号", "发微信", "贴图", "图文".
user-invocable	true
allowed-tools	["Read","Write","Edit","Bash","Grep","Glob","AskUserQuestion"]
metadata	{"author":"wuyuxiangX","version":"1.0.0"}

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

PLUGIN_DIR is the root of this plugin (two levels above this SKILL.md directory). Resolve: PLUGIN_DIR = ${SKILL_DIR}/../..

Script	Path	Purpose
wechat-api.ts	${PLUGIN_DIR}/scripts/wechat/wechat-api.ts	Article posting via API (文章)
wechat-browser.ts	${PLUGIN_DIR}/scripts/wechat/wechat-browser.ts	Image-text posts (图文)
wechat-article.ts	${PLUGIN_DIR}/scripts/wechat/wechat-article.ts	Article posting via browser (文章)
md-to-wechat.ts	${PLUGIN_DIR}/scripts/wechat/md-to-wechat.ts	Markdown → WeChat HTML conversion
check-permissions.ts	${PLUGIN_DIR}/scripts/wechat/check-permissions.ts	Verify environment & permissions

Preferences (EXTEND.md)

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

# Check project-level first
test -f .yux-publish/yux-publish-wechat/EXTEND.md && echo "project"

# Then user-level
test -f "$HOME/.yux-publish/yux-publish-wechat/EXTEND.md" && echo "user"

Path	Location
.yux-publish/yux-publish-wechat/EXTEND.md	Project directory
$HOME/.yux-publish/yux-publish-wechat/EXTEND.md	User home

Result	Action
Found	Read, parse, apply settings
Not found	Run first-time setup (references/config/first-time-setup.md) → Save → Continue

EXTEND.md Supports: Default theme | Default publishing method (api/browser) | Default author | Default open-comment switch | Default fans-only-comment switch | Chrome profile path

Minimum supported keys (case-insensitive, accept 1/0 or true/false):

Key	Default	Mapping
default_author	empty	Fallback for author when CLI/frontmatter not provided
need_open_comment	1	articles[].need_open_comment in draft/add request
only_fans_can_comment	0	articles[].only_fans_can_comment in draft/add request

Recommended EXTEND.md example:

default_theme: default
default_publish_method: api
default_author: yux
need_open_comment: 1
only_fans_can_comment: 0
chrome_profile_path: /path/to/chrome/profile

Value priority:

1. CLI arguments
2. Frontmatter
3. EXTEND.md
4. Skill defaults

Pre-flight Check (Optional)

Before first use, suggest running the environment check. User can skip if they prefer.

npx -y bun ${PLUGIN_DIR}/scripts/wechat/check-permissions.ts

Checks: Chrome, profile isolation, Bun, Accessibility, clipboard, paste keystroke, API credentials, Chrome conflicts.

If any check fails, provide fix guidance:

Check	Fix
Chrome	Install Chrome or set WECHAT_BROWSER_CHROME_PATH env var
Profile dir	Ensure ~/.local/share/wechat-browser-profile is writable
Bun runtime	curl -fsSL https://bun.sh/install | bash
Accessibility (macOS)	System Settings → Privacy & Security → Accessibility → enable terminal app
Clipboard copy	Ensure Swift/AppKit available (macOS Xcode CLI tools: xcode-select --install)
Paste keystroke (macOS)	Same as Accessibility fix above
Paste keystroke (Linux)	Install xdotool (X11) or ydotool (Wayland)
API credentials	Follow guided setup in Step 5, or manually set in .yux-publish/.env

Image-Text Posting (图文)

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

npx -y bun ${PLUGIN_DIR}/scripts/wechat/wechat-browser.ts --markdown article.md --images ./images/
npx -y bun ${PLUGIN_DIR}/scripts/wechat/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 1b: Handle interactive components (if MDX with React components)
- [ ] Step 2: Convert to HTML (built-in)
- [ ] Step 3: Validate metadata (title, summary, cover)
- [ ] Step 4: Select method and configure credentials
- [ ] Step 5: Publish to WeChat
- [ ] Step 6: Report completion

Step 0: Load Preferences

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

CRITICAL: If not found, complete first-time setup BEFORE any other steps or questions.

Resolve and store these defaults for later steps:

• default_author
• need_open_comment (default 1)
• only_fans_can_comment (default 0)

Step 1: Determine Input Type

Input Type	Detection	Action
HTML file	Path ends with .html, file exists	Skip to Step 3
Markdown file	Path ends with .md, file exists	Continue to Step 2
MDX file	Path ends with .mdx, file exists	Continue to Step 1b
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

Step 1b: Handle Interactive Components

Skip if: Input is .html file or plain .md (not .mdx)

For .mdx files that may contain interactive React components (React Flow diagrams, etc.) which WeChat cannot render:

1. Scan the MDX for self-closing capitalized component tags
2. Filter out standard components already handled by preprocessMdx (BlogImage, VideoEmbed, QuoteCard, ArticleCard, GlossaryCard, ProfileCard)
3. Check remaining components against diagramImageMap in ${PLUGIN_DIR}/scripts/wechat/wechat-api.ts
4. If all mapped → Continue to Step 2
5. If unmapped components found → Follow the screenshot workflow in references/interactive-components.md:
   • Start dev server → open page with Chrome DevTools MCP → screenshot each component → check PNG gamma → upload to OSS → update diagramImageMap

Step 2: Convert to HTML

Skip if: Input is .html file

This plugin includes a built-in markdown-to-HTML converter. No external skill needed.

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

Theme	Description
default	Classic theme - traditional layout, centered titles with bottom border, colored heading backgrounds
grace	Elegant theme - text shadows, rounded cards, refined quote blocks
simple	Minimal theme - modern minimalist, asymmetric rounded corners, clean whitespace

2. Execute conversion:

npx -y bun ${PLUGIN_DIR}/scripts/wechat/md-to-wechat.ts <markdown_file> --theme <theme>

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

Step 3: Validate Metadata

Check extracted metadata from Step 2 (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)"
Author	Use fallback chain: CLI --author → frontmatter author → EXTEND.md default_author

Auto-Generation Logic:

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

Cover Image Check (required for article_type=news):

1. Use CLI --cover if provided.
2. Else use frontmatter (coverImage, featureImage, cover, image).
3. Else check article directory default path: imgs/cover.png.
4. Else fallback to first inline content image.
5. If still missing, stop and request a cover image before publishing.

Step 4: 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 .yux-publish/.env && grep -q "WECHAT_APP_ID" .yux-publish/.env && echo "project"

# Check user-level
test -f "$HOME/.yux-publish/.env" && grep -q "WECHAT_APP_ID" "$HOME/.yux-publish/.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: .yux-publish/.env (this project only)
B) User-level: ~/.yux-publish/.env (all projects)

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

WECHAT_APP_ID=<user_input>
WECHAT_APP_SECRET=<user_input>

Step 5: Publish to WeChat

API method:

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

draft/add payload rules:

• Use endpoint: POST https://api.weixin.qq.com/cgi-bin/draft/add?access_token=ACCESS_TOKEN
• article_type: news (default) or newspic
• For news, include thumb_media_id (cover is required)
• Always resolve and send:
  • need_open_comment (default 1)
  • only_fans_can_comment (default 0)
• author resolution: CLI --author → frontmatter author → EXTEND.md default_author

If script parameters do not expose the two comment fields, still ensure final API request body includes resolved values.

Browser method:

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

Step 6: Completion Report

For API method:

WeChat Publishing Complete!

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

Article:
• Title: [title]
• Summary: [summary]
• Images: [N] inline images
• Comments: [open/closed], [fans-only/all users]

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」)

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

Detailed References

Topic	Reference
Image-text parameters, auto-compression	references/image-text-posting.md
Article themes, image handling	references/article-posting.md
Interactive components (React Flow etc.)	references/interactive-components.md

Feature Comparison

Feature	Image-Text	Article (API)	Article (Browser)
Plain text input	No	Yes	Yes
HTML input	No	Yes	Yes
Markdown input	Title/content	Yes (built-in)	Yes (built-in)
Multiple images	Yes (up to 9)	Yes (inline)	Yes (inline)
Themes	No	Yes	Yes
Auto-generate metadata	No	Yes	Yes
Default cover fallback	No	Yes	No
Comment control	No	Yes	No
Requires Chrome	Yes	No	Yes
Requires API credentials	No	Yes	No
Speed	Medium	Fast	Slow

Prerequisites

For API method:

• WeChat Official Account API credentials
• Guided setup in Step 4, or manually set in .yux-publish/.env

For Browser method:

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

Config File Locations (priority order):

1. Environment variables
2. <cwd>/.yux-publish/.env
3. ~/.yux-publish/.env

Troubleshooting

Issue	Solution
Missing API credentials	Follow guided setup in Step 4
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
No cover image	Add frontmatter cover or place imgs/cover.png in article directory
Wrong comment defaults	Check EXTEND.md keys need_open_comment and only_fans_can_comment
Paste fails	Check system clipboard permissions

Extension Support

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