The workflow JSON
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{
"name": "Main Agent Chain - HattieB",
"nodes": [
{
"parameters": {},
"id": "8c2bef99-8bc2-41f7-9c9f-3d5e1b7a2f4c",
"name": "Manual Trigger",
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
250,
300
]
},
{
"parameters": {
"promptType": "define",
"text": "You are CinnaMon, a sentiment analysis expert. Analyze the provided text and return: sentiment (positive/negative/neutral), confidence (0-1), and brief reasoning.",
"options": {}
},
"id": "a1c4d8e2-7f3b-4a9e-8b5c-2e9d1c6f4b3a",
"name": "CinnaMon - Sentiment",
"type": "n8n-nodes-langchain.agent",
"typeVersion": 1,
"position": [
450,
200
]
},
{
"parameters": {
"promptType": "define",
"text": "You are Hatch, an expert domain knowledge retriever. Based on the sentiment analysis and context provided, retrieve relevant knowledge base entries and expertise to inform the response.",
"options": {}
},
"id": "b2d5e9f3-8g4c-5b0f-9c6d-3f0e2d7g5c4b",
"name": "Hatch - Expert",
"type": "n8n-nodes-langchain.agent",
"typeVersion": 1,
"position": [
650,
200
]
},
{
"parameters": {
"promptType": "define",
"text": "You are YGM, a master drafter. Using the sentiment analysis and expert knowledge provided, draft a comprehensive response that addresses the user's needs with clarity and empathy.",
"options": {}
},
"id": "c3e6fa04-9h5d-6c1g-0d7e-4g1f3e8h6d5c",
"name": "YGM - Draft",
"type": "n8n-nodes-langchain.agent",
"typeVersion": 1,
"position": [
850,
200
]
},
{
"parameters": {
"promptType": "define",
"text": "You are QA, a quality assurance agent. Evaluate the drafted response for: clarity, accuracy, tone appropriateness, and completeness. Return a QA score (0-1) and recommendations for improvement.",
"options": {}
},
"id": "d4f7gb15-0i6e-7d2h-1e8f-5h2g4f9i7e6d",
"name": "QA - Evaluate",
"type": "n8n-nodes-langchain.agent",
"typeVersion": 1,
"position": [
1050,
200
]
},
{
"parameters": {
"conditions": {
"number": [
{
"comparator": ">=",
"value1": "={{ $node[\"QA - Evaluate\"].json.qaScore }}",
"value2": 0.8
}
]
}
},
"id": "e5g8hc26-1j7f-8e3i-2f9g-6i3h5g0j8f7e",
"name": "QA Pass Check",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
1250,
200
]
},
{
"parameters": {
"keepOnlySet": false,
"values": {
"string": [
{
"name": "finalResponse",
"value": "={{ $node[\"YGM - Draft\"].json.response }}"
},
{
"name": "sentiment",
"value": "={{ $node[\"CinnaMon - Sentiment\"].json.sentiment }}"
},
{
"name": "qaScore",
"value": "={{ $node[\"QA - Evaluate\"].json.qaScore }}"
},
{
"name": "status",
"value": "completed"
}
]
},
"options": {}
},
"id": "f6h9id37-2k8g-9f4j-3g0h-7j4i6h1k9g8f",
"name": "Set Output",
"type": "n8n-nodes-base.set",
"typeVersion": 1,
"position": [
1450,
200
]
}
],
"connections": {
"Manual Trigger": {
"main": [
[
{
"node": "CinnaMon - Sentiment",
"type": "main",
"index": 0
}
]
]
},
"CinnaMon - Sentiment": {
"main": [
[
{
"node": "Hatch - Expert",
"type": "main",
"index": 0
}
]
]
},
"Hatch - Expert": {
"main": [
[
{
"node": "YGM - Draft",
"type": "main",
"index": 0
}
]
]
},
"YGM - Draft": {
"main": [
[
{
"node": "QA - Evaluate",
"type": "main",
"index": 0
}
]
]
},
"QA - Evaluate": {
"main": [
[
{
"node": "QA Pass Check",
"type": "main",
"index": 0
}
]
]
},
"QA Pass Check": {
"main": [
[
{
"node": "Set Output",
"type": "main",
"index": 0
}
],
[
{
"node": "YGM - Draft",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"nodeTypes": {
"n8n-nodes-base.manualTrigger": {
"group": [
"trigger"
],
"name": "Manual Trigger",
"description": "Trigger the workflow manually"
},
"n8n-nodes-langchain.agent": {
"group": [
"ai"
],
"name": "AI Agent",
"description": "LangChain AI Agent"
},
"n8n-nodes-base.if": {
"group": [
"logic"
],
"name": "IF",
"description": "Conditionally execute nodes"
},
"n8n-nodes-base.set": {
"group": [
"transform"
],
"name": "Set",
"description": "Set data in workflow"
}
},
"settings": {
"executionOrder": "v1",
"saveDataErrorExecution": "all",
"saveDataSuccessExecution": "all"
}
}
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About this workflow
Main Agent Chain - HattieB. Uses n8n-nodes-langchain. Event-driven trigger; 7 nodes.
Source: https://github.com/8Dvibes/mindvalley-ai-mastery-students/blob/3f14c402928e68e6970d96942f5a45a8657f9400/demo/hattieb/workflows/main-agent-chain-hattieb.json — original creator credit. Request a take-down →
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