{
	"nodes": [
		{
			"id": "9f3a464a-3611-4c7b-b50a-b0e8e46621f7",
			"name": "Chat Trigger",
			"type": "@n8n/n8n-nodes-langchain.chatTrigger",
			"typeVersion": 1.4,
			"position": [250, 450],
			"parameters": {},
			"webhookId": "5a395181-5333-491c-a5a8-1b81cd1488ee"
		},
		{
			"id": "fc489001-f0ef-4429-88b7-556063db7cb7",
			"name": "Workflow Configuration",
			"type": "n8n-nodes-base.set",
			"typeVersion": 3.4,
			"position": [250, 300],
			"parameters": {
				"mode": "manual",
				"duplicateItem": false,
				"assignments": {
					"assignments": [
						{
							"id": "id-1",
							"name": "youtubeApiKey",
							"value": "<__PLACEHOLDER_VALUE__YouTube Data API v3 Key__>",
							"type": "string"
						}
					]
				},
				"includeOtherFields": true,
				"options": {}
			}
		},
		{
			"id": "98394a06-ceef-4c3d-a2c8-38f76258554d",
			"name": "Extract Video ID from URL",
			"type": "n8n-nodes-base.code",
			"typeVersion": 2,
			"position": [250, 300],
			"parameters": {
				"mode": "runOnceForAllItems",
				"language": "javaScript",
				"jsCode": "const url = $input.first().json.chatInput;\nlet videoId = '';\n\nif (url.includes('youtube.com/watch?v=')) {\n  videoId = url.split('v=')[1].split('&')[0];\n} else if (url.includes('youtu.be/')) {\n  videoId = url.split('youtu.be/')[1].split('?')[0];\n}\n\nreturn [{ json: { videoId, videoUrl: url } }];"
			}
		},
		{
			"id": "91c4eeda-0cc1-4362-a343-34120d745648",
			"name": "Get Video Details",
			"type": "n8n-nodes-base.youTube",
			"typeVersion": 1,
			"position": [250, 300],
			"parameters": {
				"resource": "video",
				"operation": "get",
				"videoId": "={{ $json.videoId }}",
				"part": ["snippet", "contentDetails"]
			}
		},
		{
			"id": "3a8e54ab-7bd0-4aae-896f-5ae912187386",
			"name": "Get Video Captions",
			"type": "n8n-nodes-base.httpRequest",
			"typeVersion": 4.3,
			"position": [250, 300],
			"parameters": {
				"method": "GET",
				"url": "=https://www.googleapis.com/youtube/v3/captions?part=snippet&videoId={{ $json.videoId }}&key={{ $('Workflow Configuration').first().json.youtubeApiKey }}",
				"authentication": "none",
				"sendQuery": false,
				"sendHeaders": false,
				"sendBody": false,
				"options": {
					"response": {
						"response": {
							"responseFormat": "json"
						}
					}
				}
			}
		},
		{
			"id": "cf311d08-3466-45cb-9376-3889ba450fd2",
			"name": "Prepare AI Input",
			"type": "n8n-nodes-base.set",
			"typeVersion": 3.4,
			"position": [250, 300],
			"parameters": {
				"mode": "manual",
				"duplicateItem": false,
				"assignments": {
					"assignments": [
						{
							"id": "id-1",
							"name": "transcript",
							"value": "<__PLACEHOLDER_VALUE__Transcript text from captions API__>",
							"type": "string"
						},
						{
							"id": "id-2",
							"name": "videoTitle",
							"value": "={{ $('Get Video Details').first().json.snippet.title }}",
							"type": "string"
						},
						{
							"id": "id-3",
							"name": "currentDescription",
							"value": "={{ $('Get Video Details').first().json.snippet.description }}",
							"type": "string"
						}
					]
				},
				"includeOtherFields": true,
				"include": "all",
				"options": {}
			}
		},
		{
			"id": "b4928db3-ebd6-4a42-9709-9f31da92595e",
			"name": "Chapter Generator Agent",
			"type": "@n8n/n8n-nodes-langchain.agent",
			"typeVersion": 3,
			"position": [250, 300],
			"parameters": {
				"promptType": "define",
				"text": "=Video Title: {{ $json.videoTitle }}\n\nTranscript:\n{{ $json.transcript }}",
				"hasOutputParser": true,
				"options": {
					"systemMessage": "You are a YouTube chapter timestamp generator. Your task is to analyze video transcripts and identify natural topic shifts to create meaningful chapter markers.\n\nInstructions:\n1. Read through the entire transcript carefully\n2. Identify major topic changes, transitions, or distinct sections\n3. Create chapter titles that are clear, descriptive, and engaging\n4. Ensure timestamps are in MM:SS or HH:MM:SS format\n5. Start with 0:00 for the introduction\n6. Space chapters appropriately (typically 1-5 minutes apart depending on content)\n7. Use title case for chapter names\n8. Keep chapter titles concise (under 60 characters)\n\nReturn the chapters in the structured format defined by the output parser."
				}
			}
		},
		{
			"id": "a37380fb-2688-411a-8721-9a53b8bd8969",
			"name": "Structured Output Parser",
			"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
			"typeVersion": 1.3,
			"position": [250, 450],
			"parameters": {
				"schemaType": "fromJson",
				"jsonSchemaExample": "{\n\t\"chapters\": [\n\t\t{\n\t\t\t\"timestamp\": \"0:00\",\n\t\t\t\"title\": \"Introduction\"\n\t\t},\n\t\t{\n\t\t\t\"timestamp\": \"2:15\",\n\t\t\t\"title\": \"Main Topic\"\n\t\t}\n\t]\n}"
			}
		},
		{
			"id": "c5296072-e6ed-412b-8b98-a767ba090954",
			"name": "Anthropic Claude Model",
			"type": "@n8n/n8n-nodes-langchain.lmChatAnthropic",
			"typeVersion": 1.3,
			"position": [250, 450],
			"parameters": {}
		},
		{
			"id": "bc61dab2-efbe-4be8-991a-34ff07e9883c",
			"name": "Append Chapters to Description",
			"type": "n8n-nodes-base.set",
			"typeVersion": 3.4,
			"position": [250, 300],
			"parameters": {
				"mode": "manual",
				"duplicateItem": false,
				"includeOtherFields": true,
				"assignments": {
					"assignments": [
						{
							"id": "id-1",
							"name": "updatedDescription",
							"value": "={{ $json.currentDescription + '\\n\\n📑 CHAPTERS:\\n' + $json.output.chapters.map(ch => ch.timestamp + ' - ' + ch.title).join('\\n') }}",
							"type": "string"
						}
					]
				},
				"include": "all",
				"options": {}
			}
		},
		{
			"id": "2334a33f-e938-49d3-b520-d9110c7dc4b9",
			"name": "Update Video Description",
			"type": "n8n-nodes-base.youTube",
			"typeVersion": 1,
			"position": [250, 300],
			"parameters": {
				"resource": "video",
				"operation": "update",
				"videoId": "={{ $json.videoId }}",
				"title": "={{ $json.videoTitle }}",
				"regionCode": "",
				"categoryId": "",
				"updateFields": {
					"description": "={{ $json.updatedDescription }}"
				}
			}
		},
		{
			"id": "cdbb6701-e39a-4fd3-89e4-33ec09c136c7",
			"name": "Respond to Chat",
			"type": "n8n-nodes-base.respondToWebhook",
			"typeVersion": 1.5,
			"position": [250, 300],
			"parameters": {
				"respondWith": "text",
				"responseBody": "=✅ Successfully generated and added chapters to your YouTube video!\n\nVideo: {{ $json.videoTitle }}\n\nGenerated {{ $json.output.chapters.length }} chapters:\n{{ $json.output.chapters.map(ch => ch.timestamp + ' - ' + ch.title).join('\\n') }}"
			}
		}
	],
	"connections": {
		"Chat Trigger": {
			"main": [
				[
					{
						"node": "Workflow Configuration",
						"type": "main",
						"index": 0
					}
				]
			]
		},
		"Workflow Configuration": {
			"main": [
				[
					{
						"node": "Extract Video ID from URL",
						"type": "main",
						"index": 0
					}
				]
			]
		},
		"Extract Video ID from URL": {
			"main": [
				[
					{
						"node": "Get Video Details",
						"type": "main",
						"index": 0
					}
				]
			]
		},
		"Get Video Details": {
			"main": [
				[
					{
						"node": "Get Video Captions",
						"type": "main",
						"index": 0
					}
				]
			]
		},
		"Get Video Captions": {
			"main": [
				[
					{
						"node": "Prepare AI Input",
						"type": "main",
						"index": 0
					}
				]
			]
		},
		"Prepare AI Input": {
			"main": [
				[
					{
						"node": "Chapter Generator Agent",
						"type": "main",
						"index": 0
					}
				]
			]
		},
		"Anthropic Claude Model": {
			"ai_languageModel": [
				[
					{
						"node": "Chapter Generator Agent",
						"type": "ai_languageModel",
						"index": 0
					}
				]
			]
		},
		"Structured Output Parser": {
			"ai_outputParser": [
				[
					{
						"node": "Chapter Generator Agent",
						"type": "ai_outputParser",
						"index": 0
					}
				]
			]
		},
		"Chapter Generator Agent": {
			"main": [
				[
					{
						"node": "Append Chapters to Description",
						"type": "main",
						"index": 0
					}
				]
			]
		},
		"Append Chapters to Description": {
			"main": [
				[
					{
						"node": "Update Video Description",
						"type": "main",
						"index": 0
					}
				]
			]
		},
		"Update Video Description": {
			"main": [
				[
					{
						"node": "Respond to Chat",
						"type": "main",
						"index": 0
					}
				]
			]
		}
	},
	"name": "YouTube Video Chapter Generator from Captions with AI"
}