Yasser Sami This workflow corresponds to n8n.io template #9161 — we link there as the canonical source.
This workflow follows the Agent → Documentdefaultdataloader recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"id": "udLJ2xzM6OGUAEQn",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Customer Support",
"tags": [],
"nodes": [
{
"id": "9f52a98d-5268-4e3a-97f3-5b8719e5aaff",
"name": "Text Classifier",
"type": "@n8n/n8n-nodes-langchain.textClassifier",
"position": [
192,
64
],
"parameters": {
"options": {},
"inputText": "={{ $json.text }}",
"categories": {
"categories": [
{
"category": "Customer Support",
"description": "An email that is related to helping out a customer. They may be asking questions about our policies or questions about product or services."
},
{
"category": "Other",
"description": "Any email is not customer support related."
}
]
}
},
"typeVersion": 1.1
},
{
"id": "3ca0071b-686d-4dea-84fd-6ed71bdfa14c",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
160,
240
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini",
"cachedResultName": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "7157699d-02ec-4d0e-b676-687fb0b25f75",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
624,
-16
],
"parameters": {
"text": "={{ $('Gmail Trigger').item.json.text }}",
"options": {
"systemMessage": "=# Overview\n\nYou are a customer support agent from Blueproof. Your role is to reply to incoming emails using your knowledgebase tool.\n\n## Output\nonly output the email body\n\n## Instructions\n-sign off as Yasser @ Blueproof\n\n## Final Notes\nif you didn't found the answer in your knowledgebase do not come up with hallusinated answer, just tell the user that you don't have the information in a proper way."
},
"promptType": "define"
},
"typeVersion": 2.2
},
{
"id": "7bfeebf7-120a-4785-a4a5-f6cd2ef764b8",
"name": "Embeddings OpenAI",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
864,
336
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "b58e1ae7-70ab-4aa2-861e-b6177b7f2dc2",
"name": "knowledgebase",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
784,
192
],
"parameters": {
"mode": "retrieve-as-tool",
"options": {
"pineconeNamespace": "FAQ"
},
"pineconeIndex": {
"__rl": true,
"mode": "list",
"value": "n8n",
"cachedResultName": "n8n"
},
"toolDescription": "call this tool to access knowledgebase"
},
"credentials": {
"pineconeApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.3
},
{
"id": "b1ba03dc-9d94-4233-850f-c67586428e74",
"name": "Reply to a message",
"type": "n8n-nodes-base.gmail",
"position": [
1184,
-16
],
"parameters": {
"message": "={{ $('AI Agent').item.json.output }}",
"options": {
"appendAttribution": false
},
"emailType": "text",
"messageId": "={{ $('Gmail Trigger').item.json.id }}",
"operation": "reply"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "c3810836-c0b5-448b-ab0c-7167b6ba3584",
"name": "Add label to message",
"type": "n8n-nodes-base.gmail",
"position": [
976,
-16
],
"parameters": {
"labelIds": [
"IMPORTANT"
],
"messageId": "={{ $('Gmail Trigger').item.json.id }}",
"operation": "addLabels"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "8fb33be4-21d9-4a49-9f1f-e3c89c49540e",
"name": "No Operation, do nothing",
"type": "n8n-nodes-base.noOp",
"position": [
384,
304
],
"parameters": {},
"typeVersion": 1
},
{
"id": "9339887b-461b-4a3e-a483-1f29dd446b7a",
"name": "Google Drive Trigger",
"type": "n8n-nodes-base.googleDriveTrigger",
"position": [
-208,
-592
],
"parameters": {
"event": "fileCreated",
"options": {},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"mode": "list",
"value": "1Z4mmP2gGcUAIHoKzN0Cjuf9r23bCx8fl",
"cachedResultUrl": "https://drive.google.com/drive/folders/1Z4mmP2gGcUAIHoKzN0Cjuf9r23bCx8fl",
"cachedResultName": "n8n"
}
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "73189044-3324-4dff-a8cc-9174900cc0fb",
"name": "Download file",
"type": "n8n-nodes-base.googleDrive",
"position": [
0,
-592
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 3
},
{
"id": "009d65e5-4f02-460a-a395-2fa8eea7a70b",
"name": "Pinecone Vector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
208,
-592
],
"parameters": {
"mode": "insert",
"options": {
"pineconeNamespace": "FAQ"
},
"pineconeIndex": {
"__rl": true,
"mode": "list",
"value": "n8n",
"cachedResultName": "n8n"
}
},
"credentials": {
"pineconeApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.3
},
{
"id": "731aa45f-e2d2-405e-aebf-d796830d9ebb",
"name": "Default Data Loader",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"position": [
336,
-416
],
"parameters": {
"options": {},
"dataType": "binary",
"textSplittingMode": "custom"
},
"typeVersion": 1.1
},
{
"id": "26a54599-e00a-40c9-8b6f-8f98ec1431a7",
"name": "Recursive Character Text Splitter",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"position": [
416,
-240
],
"parameters": {
"options": {}
},
"typeVersion": 1
},
{
"id": "f7447b47-e6fa-4a2f-a7c9-c313eea0bcb8",
"name": "Embeddings OpenAI1",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
160,
-368
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "f0658841-a213-4d9a-b87d-0174f2dc4bfa",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-304,
32
],
"parameters": {
"width": 256,
"content": "## AI Gmail Customer Support \nThis template auto-replies to customer emails in Gmail using AI + your knowledge base."
},
"typeVersion": 1
},
{
"id": "792141cb-cf13-4515-bd10-db61b9bf479d",
"name": "Gmail Trigger",
"type": "n8n-nodes-base.gmailTrigger",
"position": [
0,
64
],
"parameters": {
"simple": false,
"filters": {},
"options": {},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
}
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 1.3
},
{
"id": "a6b06e9a-ef64-4c29-aad8-3346eb1f448b",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-176,
-336
],
"parameters": {
"color": 4,
"height": 192,
"content": "## Auto Update Knowledge Base \nWhen you add a file to a specific folder in your google drive it automatically update the vector database and add the file to the knowledge base."
},
"typeVersion": 1
},
{
"id": "37d7d970-e076-4eb1-a1e6-62fc155062fc",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-256,
-624
],
"parameters": {
"width": 848,
"height": 528,
"content": ""
},
"typeVersion": 1
},
{
"id": "48575e3f-6579-4a29-a56a-ab0c8c2e6d3e",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
112,
-32
],
"parameters": {
"width": 352,
"height": 80,
"content": "## Classification \nAI checks if the email is customer support or not."
},
"typeVersion": 1
},
{
"id": "7854ddf5-7119-4e0d-abcd-459611f97278",
"name": "OpenAI Chat Model1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
576,
192
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "5d60f0df-53c7-4a1e-b3bb-c1869dd14401",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
624,
-128
],
"parameters": {
"width": 208,
"height": 96,
"content": "## AI Agent \nSearches your knowledge base and drafts a reply."
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "4c6edfde-4bb9-4b1d-ac1a-a4b62e359bee",
"connections": {
"AI Agent": {
"main": [
[
{
"node": "Add label to message",
"type": "main",
"index": 0
}
]
]
},
"Download file": {
"main": [
[
{
"node": "Pinecone Vector Store",
"type": "main",
"index": 0
}
]
]
},
"Gmail Trigger": {
"main": [
[
{
"node": "Text Classifier",
"type": "main",
"index": 0
}
]
]
},
"knowledgebase": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Text Classifier": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
],
[
{
"node": "No Operation, do nothing",
"type": "main",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "knowledgebase",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Text Classifier",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Embeddings OpenAI1": {
"ai_embedding": [
[
{
"node": "Pinecone Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Default Data Loader": {
"ai_document": [
[
{
"node": "Pinecone Vector Store",
"type": "ai_document",
"index": 0
}
]
]
},
"Add label to message": {
"main": [
[
{
"node": "Reply to a message",
"type": "main",
"index": 0
}
]
]
},
"Google Drive Trigger": {
"main": [
[
{
"node": "Download file",
"type": "main",
"index": 0
}
]
]
},
"Recursive Character Text Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader",
"type": "ai_textSplitter",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
gmailOAuth2googleDriveOAuth2ApiopenAiApipineconeApi
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About this workflow
This n8n template demonstrates how to build an AI-powered customer support workflow that automatically handles incoming Gmail messages, classifies them, finds answers from your knowledge base, and sends a personalized reply. SaaS founders or teams who want to automate customer…
Source: https://n8n.io/workflows/9161/ — original creator credit. Request a take-down →
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