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 {baseDir}, then use {baseDir}/scripts/<name>.ts. Resolve ${BUN_X} runtime: if bun installed → bun; if npx available → npx -y bun; else suggest installing bun.

Script	Purpose
scripts/wechat-browser.ts	Image-text posts (圖文)
scripts/wechat-article.ts	Article posting via browser (文章)
scripts/wechat-api.ts	Article posting via API (文章)
scripts/md-to-wechat.ts	Markdown → WeChat-ready HTML with image placeholders
scripts/check-permissions.ts	Verify environment & permissions

Preferences (EXTEND.md)

Check EXTEND.md existence (priority order):

# macOS, Linux, WSL, Git Bash
test -f .baoyu-skills/baoyu-post-to-wechat/EXTEND.md && echo "project"
test -f "${XDG_CONFIG_HOME:-$HOME/.config}/baoyu-skills/baoyu-post-to-wechat/EXTEND.md" && echo "xdg"
test -f "$HOME/.baoyu-skills/baoyu-post-to-wechat/EXTEND.md" && echo "user"

# PowerShell (Windows)
if (Test-Path .baoyu-skills/baoyu-post-to-wechat/EXTEND.md) { "project" }
$xdg = if ($env:XDG_CONFIG_HOME) { $env:XDG_CONFIG_HOME } else { "$HOME/.config" }
if (Test-Path "$xdg/baoyu-skills/baoyu-post-to-wechat/EXTEND.md") { "xdg" }
if (Test-Path "$HOME/.baoyu-skills/baoyu-post-to-wechat/EXTEND.md") { "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 │ Run first-time setup (references/config/first-time-setup.md) → Save → Continue │ └───────────┴───────────────────────────────────────────────────────────────────────────┘

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

First-time setup: references/config/first-time-setup.md

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_color: blue
default_publish_method: api
default_author: 寶玉
need_open_comment: 1
only_fans_can_comment: 0
chrome_profile_path: /path/to/chrome/profile

Theme options: default, grace, simple, modern

Color presets: blue, green, vermilion, yellow, purple, sky, rose, olive, black, gray, pink, red, orange (or hex value)

Value priority:

1. CLI arguments
2. Frontmatter
3. EXTEND.md (account-level → global-level)
4. Skill defaults

Multi-Account Support

EXTEND.md supports managing multiple WeChat Official Accounts. When accounts: block is present, each account can have its own credentials, Chrome profile, and default settings.

Compatibility rules:

Condition	Mode	Behavior
No accounts block	Single-account	Current behavior, unchanged
accounts with 1 entry	Single-account	Auto-select, no prompt
accounts with 2+ entries	Multi-account	Prompt to select before publishing
accounts with default: true	Multi-account	Pre-select default, user can switch

Multi-account EXTEND.md example:

default_theme: default
default_color: blue

accounts:
  - name: 寶玉的技術分享
    alias: baoyu
    default: true
    default_publish_method: api
    default_author: 寶玉
    need_open_comment: 1
    only_fans_can_comment: 0
    app_id: your_wechat_app_id
    app_secret: your_wechat_app_secret
  - name: AI工具集
    alias: ai-tools
    default_publish_method: browser
    default_author: AI工具集
    need_open_comment: 1
    only_fans_can_comment: 0

Per-account keys (can be set per-account or globally as fallback): default_publish_method, default_author, need_open_comment, only_fans_can_comment, app_id, app_secret, chrome_profile_path

Global-only keys (always shared across accounts): default_theme, default_color

Account Selection (Step 0.5)

Insert between Step 0 and Step 1 in the Article Posting Workflow:

if no accounts block:
    → single-account mode (current behavior)
elif accounts.length == 1:
    → auto-select the only account
elif --account <alias> CLI arg:
    → select matching account
elif one account has default: true:
    → pre-select, show: "Using account: <name> (--account to switch)"
else:
    → prompt user:
      "Multiple WeChat accounts configured:
       1) <name1> (<alias1>)
       2) <name2> (<alias2>)
       Select account [1-N]:"

Credential Resolution (API Method)

For a selected account with alias {alias}:

1. app_id / app_secret inline in EXTEND.md account block
2. Env var WECHAT_{ALIAS}_APP_ID / WECHAT_{ALIAS}_APP_SECRET (alias uppercased, hyphens → underscores)
3. .baoyu-skills/.env with prefixed key WECHAT_{ALIAS}_APP_ID
4. ~/.baoyu-skills/.env with prefixed key
5. Fallback to unprefixed WECHAT_APP_ID / WECHAT_APP_SECRET

.env multi-account example:

# Account: baoyu
WECHAT_BAOYU_APP_ID=your_wechat_app_id
WECHAT_BAOYU_APP_SECRET=your_wechat_app_secret

# Account: ai-tools
WECHAT_AI_TOOLS_APP_ID=your_ai_tools_wechat_app_id
WECHAT_AI_TOOLS_APP_SECRET=your_ai_tools_wechat_app_secret

Chrome Profile (Browser Method)

Each account uses an isolated Chrome profile for independent login sessions:

Source	Path
Account chrome_profile_path in EXTEND.md	Use as-is
Auto-generated from alias	{shared_profile_parent}/wechat-{alias}/
Single-account fallback	Shared default profile (current behavior)

CLI --account Argument

All publishing scripts accept --account <alias>:

${BUN_X} {baseDir}/scripts/wechat-api.ts <file> --theme default --account ai-tools
${BUN_X} {baseDir}/scripts/wechat-article.ts --markdown <file> --theme default --account baoyu
${BUN_X} {baseDir}/scripts/wechat-browser.ts --markdown <file> --images ./photos/ --account baoyu

Pre-flight Check (Optional)

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

${BUN_X} {baseDir}/scripts/check-permissions.ts

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

If any check fails, provide fix guidance per item:

Check	Fix
Chrome	Install Chrome or set WECHAT_BROWSER_CHROME_PATH env var
Profile dir	Shared profile at baoyu-skills/chrome-profile (see CLAUDE.md Chrome Profile section)
Bun runtime	brew install oven-sh/bun/bun (macOS) or npm install -g bun
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 2, or manually set in .baoyu-skills/.env

Image-Text Posting (圖文)

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

${BUN_X} {baseDir}/scripts/wechat-browser.ts --markdown article.md --images ./images/
${BUN_X} {baseDir}/scripts/wechat-browser.ts --title "標題" --content "內容" --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 0.5: Resolve account (multi-account only)
- [ ] Step 1: Determine input type
- [ ] Step 2: Select method and configure credentials
- [ ] Step 3: Resolve theme/color and validate metadata
- [ ] Step 4: Publish to WeChat
- [ ] Step 5: 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_theme (default default)
• default_color (omit if not set — theme default applies)
• 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
Plain text	Not a file path, or file doesn't exist	Save to markdown, continue to 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
• "人工智慧的未來" → ai-future (translate to English for slug)

Step 2: 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:

# macOS, Linux, WSL, Git Bash
test -f .baoyu-skills/.env && grep -q "WECHAT_APP_ID" .baoyu-skills/.env && echo "project"
test -f "$HOME/.baoyu-skills/.env" && grep -q "WECHAT_APP_ID" "$HOME/.baoyu-skills/.env" && echo "user"

# PowerShell (Windows)
if ((Test-Path .baoyu-skills/.env) -and (Select-String -Quiet -Pattern "WECHAT_APP_ID" .baoyu-skills/.env)) { "project" }
if ((Test-Path "$HOME/.baoyu-skills/.env") -and (Select-String -Quiet -Pattern "WECHAT_APP_ID" "$HOME/.baoyu-skills/.env")) { "user" }

If Credentials Missing - Guide Setup:

WeChat API credentials not found.

To obtain credentials:
1. Visit https://mp.weixin.qq.com
2. Go to: 開發 → 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 3: Resolve Theme/Color and Validate Metadata

1. Resolve theme (first match wins, do NOT ask user if resolved):

   • CLI --theme argument
   • EXTEND.md default_theme (loaded in Step 0)
   • Fallback: default

2. Resolve color (first match wins):

   • CLI --color argument
   • EXTEND.md default_color (loaded in Step 0)
   • Omit if not set (theme default applies)

3. Validate metadata from frontmatter (markdown) or HTML meta tags (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

4. Cover Image Check (required for API 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: Publish to WeChat

CRITICAL: Publishing scripts handle markdown conversion internally. Do NOT pre-convert markdown to HTML — pass the original markdown file directly. This ensures the API method renders images as <img> tags (for API upload) while the browser method uses placeholders (for paste-and-replace workflow).

Markdown citation default:

• For markdown input, ordinary external links are converted to bottom citations by default.
• Use --no-cite only if the user explicitly wants to keep ordinary external links inline.
• Existing HTML input is left as-is; no extra citation conversion is applied.

API method (accepts .md or .html):

${BUN_X} {baseDir}/scripts/wechat-api.ts <file> --theme <theme> [--color <color>] [--title <title>] [--summary <summary>] [--author <author>] [--cover <cover_path>] [--no-cite]

CRITICAL: Always include --theme parameter. Never omit it, even if using default. Only include --color if explicitly set by user or EXTEND.md.

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 (accepts --markdown or --html):

${BUN_X} {baseDir}/scripts/wechat-article.ts --markdown <markdown_file> --theme <theme> [--color <color>] [--no-cite]
${BUN_X} {baseDir}/scripts/wechat-article.ts --html <html_file>

Step 5: Completion Report

For API method, include draft management link:

WeChat Publishing Complete!

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

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 (登入後進入「內容管理」→「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] [color if set]

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	✓	✓
Multiple images	✓ (up to 9)	✓ (inline)	✓ (inline)
Themes	✗	✓	✓
Auto-generate metadata	✗	✓	✓
Default cover fallback (imgs/cover.png)	✗	✓	✗
Comment control (need_open_comment, only_fans_can_comment)	✗	✓	✗
Requires Chrome	✓	✗	✓
Requires API credentials	✗	✓	✗
Speed	Medium	Fast	Slow

Prerequisites

For API method:

• WeChat Official Account API credentials
• Guided setup in Step 2, or manually set in .baoyu-skills/.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>/.baoyu-skills/.env
3. ~/.baoyu-skills/.env

Troubleshooting

Issue	Solution
Missing API credentials	Follow guided setup in Step 2
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.