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Baoyu Post To Wechat

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Publish articles and image-text posts to a WeChat Official Account via API, Chrome, or remote SSH tunnel.

What it does

Publishes content to WeChat Official Account (微信公众号) in two formats: articles (文章) from HTML, markdown, or plain text, and image-text posts (图文) carrying up to 9 images. Articles support three publishing paths — direct API, Chrome browser automation, or remote API that tunnels HTTPS calls through an SSH SOCKS5 dynamic port forward when the local machine's IP is not on WeChat's allowlist. Markdown input converts ordinary external links to bottom citations by default. Themes, color presets, cover images, source URL ("阅读原文"), and comment controls resolve from CLI flags, markdown frontmatter, or an EXTEND.md preferences file, and multi-account workflows are supported.

When to use it

  • Publishing a markdown article draft to WeChat Official Account via the API
  • Posting a short image-text (图文) update with multiple images through Chrome
  • Publishing from a machine not on WeChat's IP allowlist using the remote SSH tunnel
  • Configuring account defaults, themes, and colors via EXTEND.md for repeated posts

The skill document

Post to WeChat Official Account

User Input Tools

When this skill prompts the user, follow this tool-selection rule (priority order):

  1. Prefer built-in user-input tools exposed by the current agent runtime — e.g., AskUserQuestion, request_user_input, clarify, ask_user, or any equivalent.
  2. Fallback: if no such tool exists, emit a numbered plain-text message and ask the user to reply with the chosen number/answer for each question.
  3. Batching: if the tool supports multiple questions per call, combine all applicable questions into a single call; if only single-question, ask them one at a time in priority order.

Concrete AskUserQuestion references below are examples — substitute the local equivalent in other runtimes.

Language

Respond in the user's language. If they write in Chinese, reply in Chinese; if English, English. Keep technical tokens (paths, flags, field names) in English.

Script Directory

{baseDir} = this SKILL.md's directory. Resolve ${BUN_X}: prefer bun; else npx -y bun; else suggest brew install oven-sh/bun/bun.

ScriptPurpose
scripts/wechat-browser.tsImage-text posts (图文)
scripts/wechat-article.tsArticle posting via browser (文章)
scripts/wechat-api.tsArticle posting via API (文章)
scripts/md-to-wechat.tsMarkdown → WeChat-ready HTML with image placeholders
scripts/check-permissions.tsVerify environment & permissions

Preferences (EXTEND.md)

Check these paths in order; first hit wins:

PathScope
.baoyu-skills/baoyu-post-to-wechat/EXTEND.mdProject
${XDG_CONFIG_HOME:-$HOME/.config}/baoyu-skills/baoyu-post-to-wechat/EXTEND.mdXDG
$HOME/.baoyu-skills/baoyu-post-to-wechat/EXTEND.mdUser home

Found → read, parse, apply. Not found → run first-time setup (references/config/first-time-setup.md) before anything else.

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

KeyDefaultMapping
default_authoremptyFallback for author when CLI/frontmatter not provided
need_open_comment1articles[].need_open_comment in draft/add
only_fans_can_comment0articles[].only_fans_can_comment in draft/add

Recommended EXTEND.md:

default_theme: default
default_color: blue
default_publish_method: browser
default_author: 宝玉
need_open_comment: 1
only_fans_can_comment: 0
chrome_profile_path: /path/to/chrome/profile

# Remote API publishing (optional) — only set if WeChat's IP allowlist
# excludes your local machine. See "Remote API Method" below.
# remote_publish_host: server.example.com
# remote_publish_user: deploy
# remote_publish_port: 22
# remote_publish_identity_file: ~/.ssh/id_ed25519
# remote_publish_known_hosts_file: ~/.ssh/known_hosts
# remote_publish_strict_host_key_checking: accept-new
# remote_publish_connect_timeout: 10
# remote_publish_proxy_jump: bastion.example.com

Raw ssh / scp options are intentionally not supported; only the typed keys above are honored. Authentication is SSH key only (no passwords).

Theme options: default, grace, simple, modern. Color presets: blue, green, vermilion, yellow, purple, sky, rose, olive, black, gray, pink, red, orange (or hex).

Value priority: CLI args → frontmatter → EXTEND.md (account-level → global) → skill defaults.

Multi-Account Support

EXTEND.md supports an accounts: block for managing multiple Official Accounts. With 2+ entries, the workflow inserts a Step 0.5 to prompt for account selection (or auto-selects based on default: true or --account ).

Full details — compatibility rules, per-account keys, credential resolution, per-account Chrome profiles, CLI usage — in references/multi-account.md.

Pre-flight Check (Optional)

Before first use, suggest the environment check (user can skip):

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

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

Check failsFix
ChromeInstall Chrome or set WECHAT_BROWSER_CHROME_PATH
Profile dirShared profile at baoyu-skills/chrome-profile
Bun runtimebrew install oven-sh/bun/bun or npm install -g bun
Accessibility (macOS)System Settings → Privacy & Security → Accessibility → enable terminal app
Clipboard copyEnsure Swift/AppKit (macOS: xcode-select --install)
Paste keystroke (Linux)Install xdotool (X11) or ydotool (Wayland)
API credentialsFollow guided setup in Step 2, or set in .baoyu-skills/.env

Image-Text Posting (图文)

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 "标题" --content "内容" --image img.png --submit

Details: references/image-text-posting.md.

Article Posting Workflow (文章)

- [ ] Step 0: Load preferences (EXTEND.md)
- [ ] Step 0.5: Resolve account (multi-account only — see references/multi-account.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 (see "Preferences" above). If not found, complete first-time setup before any other questions. Resolve and cache for later steps: default_theme, default_color, default_author, need_open_comment, only_fans_can_comment.

Step 1: Determine Input Type

InputDetectionNext
HTML filePath ends .html, file existsSkip to Step 3
Markdown filePath ends .md, file existsStep 2
Plain textNot a file path, or file doesn't existSave to markdown, then Step 2

Plain-text handling:

  1. Generate slug (first 2-4 meaningful words, kebab-case; translate Chinese to English for the slug).
  2. Save to post-to-wechat/YYYY-MM-DD/.md (create directory if needed).
  3. Continue as a markdown file.

Step 2: Select Publishing Method and Configure

Ask method unless specified in EXTEND.md or CLI:

MethodSpeedRequires
api (Recommended)FastAPI credentials (local IP allowlisted)
browserSlowChrome + logged-in session
remote-apiFastAPI credentials + an SSH-reachable server whose IP is on the WeChat allowlist

API selected + missing credentials → run guided setup per references/api-setup.md (writes to .baoyu-skills/.env).

remote-api method: WeChat's "公众号设置 → IP 白名单" often limits API access to one or two fixed IPs. If your local machine's IP is not on that list but a cloud server's is, use remote-api: all markdown rendering, image processing, draft assembly, and HTML rewriting still happen locally, and only the outbound HTTPS calls to api.weixin.qq.com (token, uploadimg, add_material, draft/add) are tunneled through an SSH SOCKS5 dynamic port forward (ssh -N -D) so that WeChat sees the remote server as the source IP. No files are written to the remote host; AppSecret never leaves the local process. Requires only sshd and outbound network on the remote host — no Python, no agent process. See "Remote API Method" below.

Step 3: Resolve Theme/Color and Validate Metadata

  1. Theme: CLI --theme → EXTEND.md default_themedefault (first match wins; do NOT ask if resolved).
  2. Color: CLI --color → EXTEND.md default_color → omit (theme default applies).
  3. Validate metadata (frontmatter for markdown, meta tags for HTML):
FieldMissing →
TitleAsk, or press Enter to auto-generate from content
SummaryFrontmatter descriptionsummary → ask or auto-generate
AuthorCLI --author → frontmatter author → EXTEND.md default_author
Source URLCLI --source-url → frontmatter sourceUrl/contentSourceUrl/content_source_url

Auto-generation: title = first H1/H2 or first sentence; summary = first paragraph, truncated to 120 chars.

  1. Cover image (required for API article_type=news): CLI --cover → frontmatter (coverImage / featureImage / cover / image) → imgs/cover.png → first inline image → stop and request one if still missing.

Step 4: Publish

Important — never pre-convert markdown to HTML. Publishing scripts handle the conversion internally and the two methods render images differently: API renders `` tags for upload, browser uses placeholders for paste-and-replace. Passing a pre-converted HTML breaks one or the other.

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 inline links. Existing HTML input is left as-is.

API method (accepts .md or .html):

${BUN_X} {baseDir}/scripts/wechat-api.ts  --theme  [--color ] [--title ] [--summary ] [--author ] [--cover ] [--source-url ] [--no-cite]

Always pass --theme even if it's default. Only pass --color when explicitly set by the user or EXTEND.md.

Remote API method (same script, adds --remote):

${BUN_X} {baseDir}/scripts/wechat-api.ts  --theme  --remote [--remote-host ] [--remote-user ] [--remote-port ] [--remote-identity-file ] [--remote-known-hosts-file ] [--remote-strict-host-key-checking yes|no|accept-new] [--remote-connect-timeout ] [--remote-proxy-jump ]

Any --remote-* flag implies --remote. CLI values override account-level then global remote_publish_* keys from EXTEND.md. Setting default_publish_method: remote-api also enables remote mode without --remote.

draft/add payload rules:

  • 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 required)
  • Always include need_open_comment (default 1) and only_fans_can_comment (default 0) in the request body, even if the CLI doesn't expose them
  • For news, optionally include content_source_url (original article URL, shown as "阅读原文" link, max 1KB). Provide via --source-url CLI flag or frontmatter sourceUrl/contentSourceUrl/content_source_url

Browser method (accepts --markdown or --html):

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

Step 5: Completion Report

WeChat Publishing Complete!

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

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

Result:
✓ Draft saved to WeChat Official Account
• media_id: [media_id]                         ← API method only

Next Steps (API):
→ 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 input)]
[• slug.html (converted)]

Feature Comparison

FeatureImage-TextArticle (API)Article (Remote API)Article (Browser)
Plain text input
HTML input
Markdown inputTitle/content
Multiple images✓ (up to 9)✓ (inline)✓ (inline)✓ (inline)
Themes
Auto-generate metadata
Default cover fallback (imgs/cover.png)
Comment control
Requires Chrome
Requires API credentials
Requires SSH-reachable server with allowlisted IP
SpeedMediumFastFastSlow

Troubleshooting

IssueFix
Missing API credentialsFollow guided setup in Step 2
Access token errorVerify credentials valid and not expired
Not logged in (browser)First run opens browser — scan QR to log in. Set TELEGRAM_BOT_TOKEN + TELEGRAM_CHAT_ID to receive the QR image via Telegram
Chrome not foundSet WECHAT_BROWSER_CHROME_PATH
Title/summary missingUse auto-generation or provide manually
No cover imageAdd frontmatter cover or place imgs/cover.png in article directory
Wrong comment defaultsCheck need_open_comment / only_fans_can_comment in EXTEND.md
Paste failsCheck system clipboard permissions
Remote publish host is requiredSet --remote-host or remote_publish_host in EXTEND.md
SOCKS proxy on 127.0.0.1:… not readySSH could not start the tunnel — check key, host, StrictHostKeyChecking, or use --remote-connect-timeout
ssh exited early during remote publishVerify the user can ssh non-interactively to the server; raise --remote-connect-timeout if the link is slow
Remote API call returns errcode 40164 (invalid IP)The remote server's egress IP is not on WeChat's allowlist; add it in 公众号设置 → IP 白名单

References

FileContent
references/image-text-posting.mdImage-text parameters, auto-compression
references/article-posting.mdArticle themes, image handling
references/multi-account.mdMulti-account compatibility, credentials, Chrome profiles, CLI
references/api-setup.mdGuided credential setup
references/config/first-time-setup.mdFirst-time EXTEND.md setup

Extension Support

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

Questions people ask

How does the remote API method work?
It opens an SSH SOCKS5 dynamic port forward so WeChat sees the remote server's IP. Markdown rendering, image processing, draft assembly, and the AppSecret stay on the local machine; only outbound calls to api.weixin.qq.com are tunneled, and no files are written to the remote host.

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