AI Support Email Auto-Responder (Human-in-the-Loop)

{
  "name": "AI Support Email Auto-Responder",
  "nodes": [
    {
      "id": "se01aa",
      "name": "New Support Email",
      "type": "n8n-nodes-base.gmailTrigger",
      "typeVersion": 1.2,
      "position": [
        200,
        300
      ],
      "parameters": {
        "pollTimes": {
          "item": [
            {
              "mode": "everyMinute"
            }
          ]
        },
        "filters": {
          "labelIds": [
            "INBOX"
          ],
          "q": "label:support is:unread"
        }
      }
    },
    {
      "id": "se02bb",
      "name": "Draft Reply",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "typeVersion": 1.4,
      "position": [
        420,
        300
      ],
      "parameters": {
        "modelId": "gpt-4o",
        "messages": {
          "values": [
            {
              "role": "system",
              "content": "You are a friendly support agent. Draft a concise, helpful reply."
            },
            {
              "role": "user",
              "content": "From: {{ $json.from }}\nSubject: {{ $json.subject }}\nBody: {{ $json.snippet }}"
            }
          ]
        }
      }
    },
    {
      "id": "se03cc",
      "name": "Approve in Slack",
      "type": "n8n-nodes-base.slack",
      "typeVersion": 2.2,
      "position": [
        640,
        300
      ],
      "parameters": {
        "resource": "message",
        "operation": "post",
        "select": "channel",
        "channelId": "#support-approvals",
        "text": "Draft reply to {{ $('New Support Email').item.json.from }}:\n\n{{ $json.message.content }}\n\nReact with white_check_mark to approve."
      }
    },
    {
      "id": "se04dd",
      "name": "Send Reply",
      "type": "n8n-nodes-base.gmail",
      "typeVersion": 2.1,
      "position": [
        860,
        300
      ],
      "parameters": {
        "resource": "message",
        "operation": "reply",
        "messageId": "={{ $('New Support Email').item.json.id }}",
        "message": "={{ $('Draft Reply').item.json.message.content }}",
        "options": {}
      }
    },
    {
      "id": "se05ee",
      "name": "Label Handled",
      "type": "n8n-nodes-base.gmail",
      "typeVersion": 2.1,
      "position": [
        1080,
        300
      ],
      "parameters": {
        "resource": "message",
        "operation": "addLabels",
        "messageId": "={{ $('New Support Email').item.json.id }}",
        "labelIds": [
          "handled"
        ]
      }
    }
  ],
  "connections": {
    "New Support Email": {
      "main": [
        [
          {
            "node": "Draft Reply",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Draft Reply": {
      "main": [
        [
          {
            "node": "Approve in Slack",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Approve in Slack": {
      "main": [
        [
          {
            "node": "Send Reply",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Send Reply": {
      "main": [
        [
          {
            "node": "Label Handled",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {},
  "meta": {}
}