About this recipe
A recipe for Ask A Human For Help When The Ai Doesn T Know The Answer
Recipe Template
{
"name": "Ask a human",
"nodes": [
{
"id": "a60c8572-56c1-4bf3-8352-a6419a475887",
"name": "Window Buffer Memory",
"type": "@n8n\/n8n-nodes-langchain.memoryBufferWindow",
"position": [
900,
760
],
"parameters": [],
"typeVersion": 1.1
},
{
"id": "b4f2e26c-903b-46b8-bd8b-110fd64de9e4",
"name": "Not sure?",
"type": "@n8n\/n8n-nodes-langchain.toolWorkflow",
"position": [
1120,
760
],
"parameters": {
"name": "dont_know_tool",
"fields": {
"values": [
{
"name": "chatInput",
"stringValue": "={{ $('Chat Trigger').item.json.chatInput }}"
}
]
},
"workflowId": "={{ $workflow.id}}",
"description": "Use this tool if you don't know the answer to the user's question, or if you're not very confident about your answer."
},
"typeVersion": 1
},
{
"id": "951cc691-b422-4ce6-901f-b7feb3afd1ad",
"name": "Execute Workflow Trigger",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
540,
1360
],
"parameters": [],
"typeVersion": 1
},
{
"id": "194ba9c0-e256-449a-8da7-ac5339123a99",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
500,
1020
],
"parameters": {
"color": 7,
"width": 1118.3459011229047,
"height": 775.3931210698682,
"content": "### Sub-workflow: Custom tool\nThe agent above can call this workflow. It checks if the user has supplied an email address. If they haven't it prompts them to provide one. If they have, it messages a customer support channel for help."
},
"typeVersion": 1
},
{
"id": "38c6b363-45a7-4e72-9e40-8c0df3cc480f",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
500,
460
],
"parameters": {
"color": 7,
"width": 927.5,
"height": 486.5625,
"content": "### Main workflow: AI agent using custom tool"
},
"typeVersion": 1
},
{
"id": "0389315b-e48d-4b00-b9a1-899302b1b094",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
1060,
700
],
"parameters": {
"color": 5,
"width": 197.45572294791873,
"height": 179.21380662202682,
"content": "**This tool calls the sub-workflow below**"
},
"typeVersion": 1
},
{
"id": "fb11064a-4cf5-4110-9e39-af24a3225164",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
700,
680
],
"parameters": {
"color": 2,
"width": 150,
"height": 213.44323866265472,
"content": "**Set your credentials**"
},
"typeVersion": 1
},
{
"id": "d689021d-0a46-4dff-a01a-0b01ecdd198b",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
1020,
1180
],
"parameters": {
"color": 2,
"width": 178.0499248677781,
"height": 250.57252651663197,
"content": "**Set your credentials and Slack details**"
},
"typeVersion": 1
},
{
"id": "0926cd61-c0b8-4bae-ae65-9afd130d17cd",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
340,
520
],
"parameters": {
"color": 4,
"width": 185.9375,
"height": 214.8397420554627,
"content": "## Try it out\n\nSelect **Chat** at the bottom and enter:\n\n_Hi! Please respond to this as if you don't know the answer to my query._"
},
"typeVersion": 1
},
{
"id": "cde69dfe-252e-4a05-8d56-fa79431df5d8",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
1580,
1600
],
"parameters": {
"height": 144.50520156238127,
"content": "## Next steps\n\nLearn more about [Advanced AI in n8n](https:\/\/docs.n8n.io\/advanced-ai\/)"
},
"typeVersion": 1
},
{
"id": "927b775a-47f6-4067-a1a5-5f13dea28e45",
"name": "Chat Trigger",
"type": "@n8n\/n8n-nodes-langchain.chatTrigger",
"position": [
600,
520
],
"webhookId": "785e0c0c-12e5-4249-9abe-47bb131975cb",
"parameters": [],
"typeVersion": 1
},
{
"id": "971e7b90-c2d8-4292-9da8-732d7d399f04",
"name": "Prompt the user to provide an email",
"type": "n8n-nodes-base.code",
"position": [
1060,
1520
],
"parameters": {
"jsCode": "response = {\"response\":\"I'm sorry I don't know the answer. Please repeat your question and include your email address so I can request help.\"};\nreturn response;"
},
"typeVersion": 2
},
{
"id": "6f5a21b3-c145-46c8-8e69-660100c4a6fc",
"name": "Confirm that we've messaged a human",
"type": "n8n-nodes-base.code",
"position": [
1300,
1260
],
"parameters": {
"jsCode": "response = {\"response\": \"Thank you for getting in touch. I've messaged a human to help.\"}\nreturn response;"
},
"typeVersion": 2
},
{
"id": "8b17da5e-e392-4028-91b0-bc02d34e46ed",
"name": "AI Agent",
"type": "@n8n\/n8n-nodes-langchain.agent",
"position": [
820,
520
],
"parameters": {
"options": {
"systemMessage": "Try to answer the user's question. When you can't answer, or you're not confident of the answer, use the appropriate tool. When you use the dont_know_tool, respond with the message from the tool."
}
},
"typeVersion": 1.2
},
{
"id": "990ecd3b-6aa0-4b17-8d01-d606b9164fa8",
"name": "Check if user has provided email",
"type": "n8n-nodes-base.if",
"position": [
760,
1360
],
"parameters": {
"options": [],
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "5e21e7c5-db60-4111-bb17-c289ae0fc159",
"operator": {
"type": "string",
"operation": "regex"
},
"leftValue": "={{ $('Execute Workflow Trigger').item.json.chatInput }}",
"rightValue": "\/([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\\.[a-zA-Z0-9_-]+)\/gi"
}
]
}
},
"typeVersion": 2
},
{
"id": "d14da0ae-06ca-422b-b5b6-e7759e74c787",
"name": "Message Slack for help",
"type": "n8n-nodes-base.slack",
"position": [
1060,
1260
],
"parameters": {
"text": "={{ \"A user had a question the bot couldn't answer. Here's their message: \" + $('Execute Workflow Trigger').item.json.chatInput }}",
"select": "channel",
"channelId": {
"__rl": true,
"mode": "name",
"value": ""
},
"otherOptions": []
},
"typeVersion": 2.1
},
{
"id": "278391c7-6945-495e-a4f1-74fb8fcc3549",
"name": "GPT4",
"type": "@n8n\/n8n-nodes-langchain.lmChatOpenAi",
"position": [
740,
740
],
"parameters": {
"model": "gpt-4",
"options": {
"temperature": 0.2
}
},
"typeVersion": 1
}
],
"pinData": [],
"connections": {
"GPT4": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Not sure?": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Chat Trigger": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Window Buffer Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Message Slack for help": {
"main": [
[
{
"node": "Confirm that we've messaged a human",
"type": "main",
"index": 0
}
]
]
},
"Execute Workflow Trigger": {
"main": [
[
{
"node": "Check if user has provided email",
"type": "main",
"index": 0
}
]
]
},
"Check if user has provided email": {
"main": [
[
{
"node": "Message Slack for help",
"type": "main",
"index": 0
}
],
[
{
"node": "Prompt the user to provide an email",
"type": "main",
"index": 0
}
]
]
}
}
}How to Use an n8n Template
1
Create a New Workflow
Click "New Workflow" in your n8n dashboard to get started.
2
Copy & Paste Template
First, copy this template:
Click here to copy the JSON
.
Then, in n8n, click the three dots (···) → "Import from file" and paste the JSON code.
3
Customize the Nodes
Go through each node in the workflow to update inputs like spreadsheet IDs, email addresses, or message content. Adjust field mappings to match your data.
4
Grant Access
For nodes that connect to external apps (like Google Sheets or Slack), you'll need to grant access. Connect your accounts using OAuth or an API key and save the credentials in the node.
5
Test It
Run the workflow by clicking "Execute Node" for each step or "Run Once" for the whole thing. Check the right sidebar to inspect data and debug any errors (they'll show up in red).
6
Activate Workflow
Once everything works as expected, click the "Activate" toggle to turn your workflow on. You're all set!