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 │ └───────────┴───────────────────────────────────────────────────────────────────────────┘

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: 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 ):

• Use CLI --cover if provided.

• Else use frontmatter (coverImage , featureImage , cover , image ).

• Else check article directory default path: imgs/cover.png .

• Else fallback to first inline content image.

• 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.