Oka Hironobu This workflow corresponds to n8n.io template #13563 — we link there as the canonical source.
This workflow follows the Chainllm → Google Sheets 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": "HIUvWLKMlu3ViZ4KSjn1u",
"name": "Review GitHub pull requests with Gemini AI and post feedback automatically",
"tags": [],
"nodes": [
{
"id": "be776153-13cd-4ece-8e2b-32d3e45d7671",
"name": "GitHub PR webhook",
"type": "n8n-nodes-base.webhook",
"position": [
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64
],
"parameters": {},
"typeVersion": 1
},
{
"id": "fcf3d77c-97fc-4a38-870c-a445a621a5e3",
"name": "Parse PR data",
"type": "n8n-nodes-base.code",
"position": [
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64
],
"parameters": {},
"typeVersion": 2
},
{
"id": "9fcdfed0-4475-4a37-a71f-c46c54acacf0",
"name": "Get PR diff",
"type": "n8n-nodes-base.httpRequest",
"position": [
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],
"parameters": {},
"typeVersion": 4.1
},
{
"id": "4891d361-a30d-410f-a0ce-493ce3283f70",
"name": "Analyze diff",
"type": "n8n-nodes-base.code",
"position": [
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],
"parameters": {},
"typeVersion": 2
},
{
"id": "6391e2d1-e52a-4c86-8f28-8ed20acbacd6",
"name": "Code review",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
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],
"parameters": {},
"typeVersion": 1.4
},
{
"id": "9600490e-13b0-4859-af31-1c2e155ce793",
"name": "Google Gemini AI",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
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],
"parameters": {},
"typeVersion": 1
},
{
"id": "97feb106-fb0a-4a1d-8a2f-7e642652329d",
"name": "Format review",
"type": "n8n-nodes-base.code",
"position": [
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],
"parameters": {},
"typeVersion": 2
},
{
"id": "5888b39d-17ff-40e3-bc0b-262f8af40aa4",
"name": "Post GitHub review",
"type": "n8n-nodes-base.httpRequest",
"position": [
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],
"parameters": {},
"typeVersion": 4.1
},
{
"id": "2a5e717f-01e0-46dd-bb35-be92880c5b92",
"name": "Log to Sheets",
"type": "n8n-nodes-base.googleSheets",
"position": [
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64
],
"parameters": {},
"typeVersion": 4.1
},
{
"id": "42d011aa-ce69-4662-a4b3-abd3cec1f953",
"name": "Notify team",
"type": "n8n-nodes-base.slack",
"position": [
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],
"parameters": {},
"typeVersion": 2.1
},
{
"id": "018f1cfd-bd13-4174-b29c-255f84ed4244",
"name": "Overview Sticky",
"type": "n8n-nodes-base.stickyNote",
"position": [
-512,
-144
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "6051a632-9356-4ef2-be70-79bf2b82aba5",
"name": "Webhook Setup Section",
"type": "n8n-nodes-base.stickyNote",
"position": [
-160,
-144
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "6802776e-ba62-4816-953f-e1626a748ed4",
"name": "Data Analysis Section",
"type": "n8n-nodes-base.stickyNote",
"position": [
256,
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],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "b5c2900a-1f2c-49fd-8836-7402f8fa5474",
"name": "AI Review Section",
"type": "n8n-nodes-base.stickyNote",
"position": [
640,
-144
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "46f68c83-1037-4ce3-ba07-a666b10a74fe",
"name": "Results Section",
"type": "n8n-nodes-base.stickyNote",
"position": [
1088,
-144
],
"parameters": {
"content": ""
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"binaryMode": "separate",
"availableInMCP": false,
"executionOrder": "v1"
},
"versionId": "19a17d5e-d694-4966-a265-0cfd6b86854f",
"connections": {
"Code review": {
"main": [
[
{
"node": "Format review",
"type": "main",
"index": 0
}
]
]
},
"Get PR diff": {
"main": [
[
{
"node": "Analyze diff",
"type": "main",
"index": 0
}
]
]
},
"Analyze diff": {
"main": [
[
{
"node": "Code review",
"type": "main",
"index": 0
}
]
]
},
"Format review": {
"main": [
[
{
"node": "Post GitHub review",
"type": "main",
"index": 0
}
]
]
},
"Log to Sheets": {
"main": [
[
{
"node": "Notify team",
"type": "main",
"index": 0
}
]
]
},
"Parse PR data": {
"main": [
[
{
"node": "Get PR diff",
"type": "main",
"index": 0
}
]
]
},
"Google Gemini AI": {
"ai_languageModel": [
[
{
"node": "Code review",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"GitHub PR webhook": {
"main": [
[
{
"node": "Parse PR data",
"type": "main",
"index": 0
}
]
]
},
"Post GitHub review": {
"main": [
[
{
"node": "Log to Sheets",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
Development teams and tech leads who want to maintain consistent code quality without manual review bottlenecks. Perfect for teams handling multiple PRs daily and wanting AI-powered insights on security, bugs, and best practices.
Source: https://n8n.io/workflows/13563/ — original creator credit. Request a take-down →
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