---name: wechat-bindingversion: 1.0.1description: |WeChat binding: QR scan, bind, unbind, reconnect, status check.author: starchildtags: [wechat, binding, connection, qrcode, ilink]---

📱 WeChat Binding

Connect / reconnect / disconnect the user's WeChat account so the agent can push messages via send_to_wechat.

The wechat tool stays built-in. This SKILL.md is the reference doc.

See also

• config/context/references/messaging-channels.md — how to actually send messages once bound
• skills/tg-bot-binding/SKILL.md — analogous Telegram flow

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Typical binding flow

qrcode → user scans → qrcode_status(qrcode=...) → connect(bot_token=...)

1. Generate QR: wechat(action="qrcode") — saves an image to workspace, returns qrcode (id) + file_path.
2. Show the QR to the user. On web channel: include the file_path so the frontend renders the image. On TG/WeChat channel: send the image via send_to_telegram with the file_path.
3. Wait for the user to scan + confirm in WeChat. Don't auto-poll — let them say "scanned" / "done" first.
4. Poll for completion: wechat(action="qrcode_status", qrcode=<id from step 1>). Returns bot_token once scan + confirm completes.
5. Connect: wechat(action="connect", bot_token=<from step 4>). Optional: ilink_bot_id, ilink_user_id if the user has multiple WeChat accounts.
6. Confirm to user: "WeChat connected. You can now push messages with send_to_wechat."

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Actions

action	required	purpose
status	—	Current WeChat connection state. Use before reconnect, to verify binding.
qrcode	—	Generate QR code image (saved to workspace). Returns qrcode id + file_path.
qrcode_status	qrcode	Poll whether user has scanned + confirmed. Returns bot_token on success.
connect	bot_token	Complete a NEW WeChat connection (after first-ever QR scan). Optional: ilink_bot_id, ilink_user_id.
disconnect	—	Terminate current WeChat session (unlink).
reconnect	bot_token	Re-establish a previously-bound WeChat (token from a fresh QR scan).

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connect vs. reconnect

• connect — first-time binding. The user has NEVER bound this WeChat before.
• reconnect — the user was previously connected, the connection dropped (e.g. ilink session expired), and they just scanned a fresh QR.

When in doubt, call status first:

• connected: false + no prior history → connect
• connected: false + prior history exists → reconnect

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Channel-aware QR display

User channel	How to show the QR
Web	Include file_path in your reply — frontend renders it inline
Telegram	send_to_telegram(file_path=<qr_path>, message_type="photo")
WeChat	(You can't — they're trying to bind WeChat in the first place. Tell them to open the web app.)

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Critical rules

• Don't auto-poll qrcode_status after qrcode. Wait for user confirmation that they scanned + confirmed in WeChat. Auto-polling spams the upstream API.
• Each qrcode call generates a fresh image. Don't re-use an old qrcode id with a new image — the upstream session is tied to the id.
• Never paste bot_token in chat. It's a credential. Once you have it from qrcode_status, immediately pass it to connect / reconnect and don't echo it back to the user.
• disconnect is destructive — confirm with the user before calling it.