基于Gemini 2.5、RAG和Cohere重排的Gmail客服代理

• •Google 账号和 Gmail API 凭证
• •OpenAI API Key
• •Google Gemini API Key
• •PostgreSQL 数据库连接信息
• •Pinecone API Key

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      "parameters": {
        "simple": false,
        "filters": {},
        "options": {},
        "pollTimes": {
          "item": [
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              "mode": "everyMinute"
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      "credentials": {
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      "webhookId": "781b8efc-e90e-4f90-98f1-d92c2a42f088",
      "parameters": {
        "message": "={{ $json.output }}",
        "options": {
          "appendAttribution": false
        },
        "emailType": "text",
        "messageId": "={{ $('Gmail Trigger').item.json.id }}",
        "operation": "reply"
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      "credentials": {
        "gmailOAuth2": {
          "id": "JpuoplF0PostDvKB",
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    {
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        "topK": 10,
        "options": {},
        "useReranker": true,
        "pineconeIndex": {
          "__rl": true,
          "mode": "list",
          "value": "agency-info",
          "cachedResultName": "agency-info"
        },
        "toolDescription": "Info About <agency> services, owner and general FAQ"
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    {
      "id": "b587ef62-ec9c-4727-ac16-6e5b2862fe78",
      "name": "电子邮件支持代理",
      "type": "@n8n/n8n-nodes-langchain.agent",
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      "parameters": {
        "text": "={{ $json.text }}",
        "options": {
          "systemMessage": "You are an email support agent for the agency. Use the pinecone tool to access its knowledge base."
        },
        "promptType": "define"
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      "typeVersion": 2.2
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      "id": "11ccc8a7-11fb-4bbc-8593-7d203de1614e",
      "name": "Postgres 内存",
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      "parameters": {
        "tableName": "email_support_agent_",
        "sessionKey": "={{ $json.id }}",
        "sessionIdType": "customKey"
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      "credentials": {
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        "content": "## 🗄️ 节点：Pinecone 检索器"
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        "color": 3,
        "width": 398,
        "height": 244,
        "content": "## 🔄 节点：Cohere 重新排序器"
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        "content": "## 🤖 节点：电子邮件支持代理"
      },
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        "content": "# 带有 RAG 和 Cohere 重新排序的 AI 电子邮件支持代理"
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  "pinData": {},
  "connections": {
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