Call via POST http://127.0.0.1:3000/share_group_ex (JSON params as the body) or WebSocket.
| Param | Type | Required | Default | Description |
|---|---|---|---|---|
group_id |
uint | ✓ |
服务端生成的群推荐 Ark 卡片 JSON 字符串。
data is string.
MCP-capable clients can discover and call this action directly — no hand-written HTTP. See MCP.