Feishu Merged Message Fetcher

Feishu's merge_forward messages appear as "Merged and Forwarded Message" with no content in the bot API. Use the Feishu REST API to retrieve the actual sub-messages.

When to Use

• Message body contains only "Merged and Forwarded Message"
• msg_type is merge_forward
• User asks about a forwarded/合并转发 message you can't read

How It Works

The Feishu GET /open-apis/im/v1/messages/{message_id} endpoint returns the parent message plus all sub-messages in data.items[]. Sub-messages have upper_message_id pointing to the parent.

Steps

1. Get the message_id of the merged message (from inbound context or replied message metadata).

2. Run the fetch script:

   bash <skill_dir>/scripts/fetch_merged_msg.sh <message_id> <app_id> <app_secret>
   

   • app_id / app_secret: from OpenClaw config at .channels.feishu in openclaw.json
   • If credentials are not readily available, extract them:

     python3 -c "import json; d=json.load(open('/root/.openclaw/openclaw.json')); c=d['channels']['feishu']; print(c.get('appId',''), c.get('appSecret',''))"
     

3. Parse the JSON response:

   • data.items[0] is the parent (merge_forward) message
   • data.items[1:] are the sub-messages in chronological order
   • Each sub-message has body.content with the actual text/post content
   • mentions[] maps @_user_N placeholders to real names
   • sender.id identifies who sent each sub-message

4. Summarize the conversation thread for the user.

Notes

• The API requires im:message:readonly scope on the Feishu app.
• Images inside sub-messages show as image_key references; they cannot be directly displayed but can be described from context.
• Sub-messages may come from different chats (check chat_id); the original chat context may differ from the current group.