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)
`scripts/md-to-wechat.ts`	Markdown → WeChat-ready HTML with image placeholders
`scripts/check-permissions.ts`	Verify environment & permissions

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 │ Run first-time setup (references/config/first-time-setup.md) → Save → Continue │ └───────────┴───────────────────────────────────────────────────────────────────────────┘

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: 宝玉
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:

CLI arguments
Frontmatter
EXTEND.md
Skill defaults

Pre-flight Check (Optional)

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

npx -y bun ${SKILL_DIR}/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	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 2, or manually set in `.baoyu-skills/.env`

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: 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:

Generate slug from content (first 2-4 meaningful words, kebab-case)
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

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: 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 3: Resolve Theme/Color and Validate Metadata

Resolve theme (first match wins, do NOT ask user if resolved):
- CLI --theme argument
- EXTEND.md default_theme (loaded in Step 0)
- Fallback: default
Resolve color (first match wins):
- CLI --color argument
- EXTEND.md default_color (loaded in Step 0)
- Omit if not set (theme default applies)
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

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).

API method (accepts .md or .html):

npx -y bun ${SKILL_DIR}/scripts/wechat-api.ts <file> --theme <theme> [--color <color>] [--title <title>] [--summary <summary>] [--author <author>] [--cover <cover_path>]

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):

npx -y bun ${SKILL_DIR}/scripts/wechat-article.ts --markdown <markdown_file> --theme <theme> [--color <color>]
npx -y bun ${SKILL_DIR}/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] [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):

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