使用AI Tool Node和GPT-4、DALL-E的多智能体图书创作工作流

• •AWS Access Key 和 Secret
• •Google Drive API 凭证
• •可能需要目标 API 的认证凭证
• •OpenAI API Key

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  "name": "使用 AI Tool Node 和 GPT-4、DALL-E 的多智能体图书创作工作流",
  "tags": [],
  "nodes": [
    {
      "id": "8186d3a3-15f5-456b-8ba4-d62ea9ea1bd4",
      "name": "当收到聊天消息时",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "position": [
        -528,
        -432
      ],
      "webhookId": "d41b30e6-1c2d-4d84-8bcc-bb47a361e608",
      "parameters": {
        "options": {}
      },
      "typeVersion": 1.1
    },
    {
      "id": "582637d7-5961-463c-bf35-d4172eceec30",
      "name": "设计师智能体",
      "type": "@n8n/n8n-nodes-langchain.agentTool",
      "position": [
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      "parameters": {
        "text": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Prompt__User_Message_', ``, 'string') }}",
        "options": {},
        "toolDescription": "You are Designer Agent, your job is to generate the prompt to create the book cover\n\nThe prompt must be ready for DALL·E 2 and include:\n- focal motif(s) matching brief.visual_motifs (1–3)\n- composition with clean top third for title; safe margins\n- style/medium; lighting; background texture/gradient\n- color direction (brief.color_palette)\n- typography guidance: “bold sans-serif title, high contrast”\n- aspect ratio mention: “aspect ratio 1:1.6”\n\nDo NOT generate images, return the prompt only, nothing else Do NOT return anything else."
      },
      "typeVersion": 2.2
    },
    {
      "id": "1508974a-2b9d-41de-bea8-6b69f52ec91a",
      "name": "内容撰写智能体",
      "type": "@n8n/n8n-nodes-langchain.agentTool",
      "position": [
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      ],
      "parameters": {
        "text": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Prompt__User_Message_', ``, 'string') }}",
        "options": {},
        "toolDescription": "You are a Book Writer Agent\nYour task is to write the entire book in Markdown format following the provided writing_brief.\n\nOutput Rules\n\t•\tFormat strictly in Markdown\n\t•\tNo extra text, no explanations, no keys, no JSON\n\t•\tNo fabricated citations\n\nStructure\n\t•\t# Title page with title, subtitle, author\n\t•\t## Table of Contents listing all chapters\n\t•\t## Chapters (match chapter_count), use ## for chapter titles and ### for sections\n\t•\tInclude practical sections, examples, and brief checklists where relevant\n\t•\tEnd with:\n\t•\t## Conclusion / Key Takeaways\n\t•\t## Next Steps / Further Reading (if applicable)\n\nConstraints\n\t•\tRespect language, tone, target_word_count (±15%), and chapter_count.\nDo not add break line between chapter, each chapter should be long and informative.\nReturn in markdown only, nothing else."
      },
      "typeVersion": 2.2
    },
    {
      "id": "8a921536-1306-456a-a606-bed24c4a96ed",
      "name": "结构化输出解析器",
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "position": [
        -144,
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      ],
      "parameters": {
        "jsonSchemaExample": "{\n  \"book_brief\": {\n    \"working_title\": \"Navigating AI Automation\",\n    \"subtitle\": \"A Practical Guide for Busy Teams\",\n    \"topic\": \"AI automation for SMEs\",\n    \"audience\": \"General readers with interest in the topic.\",\n    \"goals\": \"Teach a simple, repeatable automation playbook.\",\n    \"tone\": \"Clear, practical, friendly\",\n    \"language\": \"English\",\n    \"keywords\": [\"automation\",\"AI\",\"workflows\",\"n8n\"],\n    \"target_word_count\": 4000,\n    \"chapter_count\": 6\n  },\n  \"cover_design_brief\": {\n    \"title\": \"Navigating AI Automation\",\n    \"subtitle\": \"A Practical Guide for Busy Teams\",\n    \"author\": \"Anonymous\",\n    \"language\": \"English\",\n    \"style_descriptors\": [\"minimalist\",\"bold typography\",\"clean vector\",\"subtle texture\"],\n    \"visual_motifs\": [\"compass\",\"grid\",\"workflow nodes\"],\n    \"avoid\": [\"logos\",\"trademarked characters\",\"NSFW\"],\n    \"color_palette\": \"High-contrast, modern\",\n    \"composition_notes\": \"Leave top third clean for bold title\",\n    \"aspect_ratio\": \"1:1.6\"\n  },\n  \"writing_brief\": {\n    \"title\": \"Navigating AI Automation\",\n    \"subtitle\": \"A Practical Guide for Busy Teams\",\n    \"author\": \"Anonymous\",\n    \"language\": \"English\",\n    \"tone\": \"Clear, practical, friendly\",\n    \"target_word_count\": 4000,\n    \"chapter_count\": 6,\n    \"outline\": [\"Intro\",\"Foundations\",\"Core Concepts\",\"Workflow\",\"Case Study\",\"Pitfalls & Next Steps\"],\n    \"include_front_matter\": true,\n    \"include_back_matter\": true,\n    \"image_placeholders\": true,\n    \"citations_policy\": \"none unless sources provided\"\n  }\n}"
      },
      "typeVersion": 1.3
    },
    {
      "id": "700133ce-dbda-4f44-99d4-eef15c49e96c",
      "name": "图书概要智能体",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        -304,
        -432
      ],
      "parameters": {
        "text": "=Create a short book brief from this request:\n- Topic: {{ $json.chatInput }}\n- Audience (optional): Kid\n- Language (optional): English\n- Target word count (optional): 10000\n- Chapter count (optional): 5\n- Author (optional): Trung Tran",
        "options": {
          "systemMessage": "You are General Agent. Your ONLY job in this call: return a single planning JSON object with keys\n{ book_brief, cover_design_brief, writing_brief }.\n\nHard rules:\n- Return EXACTLY one JSON object. No arrays, no markdown, no prose, no notes, no explanations.\n- If a field is missing, FILL a sensible default. Do NOT ask follow-ups or add “please provide”.\n- Top-level keys MUST be exactly: book_brief, cover_design_brief, writing_brief.\n- All arrays MUST be arrays of strings/integers as appropriate (no objects unless specified).\n- Language must mirror the request or default to \"English\".\n- Audience/tone defaults: audience=\"General readers with interest in the topic.\", tone=\"Clear, practical, friendly\".\n- Numbers are integers (e.g., target_word_count, chapter_count).\n\nSchema (shape, not instructions):\n{\n  \"book_brief\": {\n    \"working_title\": \"string\",\n    \"subtitle\": \"string\",\n    \"topic\": \"string\",\n    \"audience\": \"string\",\n    \"goals\": \"string\",\n    \"tone\": \"string\",\n    \"language\": \"string\",\n    \"keywords\": [\"string\"],\n    \"target_word_count\": 4000,\n    \"chapter_count\": 6,\n    \"author\": \"string\"\n  },\n  \"cover_design_brief\": {\n    \"title\": \"string\",\n    \"subtitle\": \"string\",\n    \"author\": \"string\",\n    \"language\": \"string\",\n    \"style_descriptors\": [\"string\"],\n    \"visual_motifs\": [\"string\"],\n    \"avoid\": [\"string\"],\n    \"color_palette\": \"string\",\n    \"composition_notes\": \"string\",\n    \"aspect_ratio\": \"1:1.6\"\n  },\n  \"writing_brief\": {\n    \"title\": \"string\",\n    \"subtitle\": \"string\",\n    \"author\": \"string\",\n    \"language\": \"string\",\n    \"tone\": \"string\",\n    \"target_word_count\": 4000,\n    \"chapter_count\": 6,\n    \"outline\": [\"string\"],\n    \"include_front_matter\": true,\n    \"include_back_matter\": true,\n    \"image_placeholders\": true,\n    \"citations_policy\": \"string\"\n  }\n}"
        },
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 2.1
    },
    {
      "id": "b8def711-2648-4065-adaf-e1d7265050ca",
      "name": "图书写作智能体",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
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        -432
      ],
      "parameters": {
        "text": "=Given the following input:\n{{ $json.output.toJsonString() }}\nUse the Designer Agent and Content Writer Agent to produce the final JSON output with:\n1.\tcover_prompt: a DALL·E input prompt generated from cover_design_brief.\n2.\tbook_content_markdown: the full book content in markdow (must be markdown format) generated from writing_brief.",
        "options": {
          "systemMessage": "You are the Orchestration Agent responsible for managing two specialized tool agents to create a children-friendly book project. Your job is to:\n\t1.\tAnalyze the input JSON which contains:\n\t•\tbook_brief: metadata about the book project\n\t•\tcover_design_brief: instructions for designing the book cover\n\t•\twriting_brief: instructions for writing the book content\n\t2.\tCoordinate two tool agents:\n\t•\tDesigner Agent → Generate a DALL·E-compatible prompt using cover_design_brief.\n\t•\tContent Writer Agent → Generate full book content in Markdown format using writing_brief.\n\t3.\tFinal Output:\n\t•\tA cover prompt (string) to be used later with DALL·E for cover creation.\n\t•\tThe full book manuscript in Markdown format, including front matter, chapters, image placeholders, and back matter as specified.\n\t4.\tConstraints & Style:\n\t•\tThe book should follow the tone, audience, and structure defined in the input.\n\t•\tThe Designer prompt must be visual, concise, and descriptive.\n\t•\tThe book content must be clear, practical, friendly, and suitable for kids.\n\t•\tReturn the results in JSON format with two fields:\n\t•\tcover_prompt\n\t•\tbook_content_markdown (must be markdown format)"
        },
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 2.1
    },
    {
      "id": "74667209-1051-4390-a98d-8c1b3cf3e281",
      "name": "gpt-4.1-mini",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
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      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4.1-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "PPSwAKeLQYgAPobT",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "a4ca95db-4b95-4e60-881e-9007443b049d",
      "name": "gpt-4.1-mini1",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
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      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4.1-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "PPSwAKeLQYgAPobT",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "5bdcf76c-a163-4ff8-aa6a-38c282ccc479",
      "name": "gpt-4.1-mini2",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        640,
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      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4.1-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "PPSwAKeLQYgAPobT",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "52af3ecd-4d98-4553-becb-1dfc09860bf0",
      "name": "结构化输出解析器1",
      "type": "@n8n/n8n-nodes-langchain.outputParserStructured",
      "position": [
        864,
        -208
      ],
      "parameters": {
        "jsonSchemaExample": "{\n  \"bookCoverPrompt\": \"prompt\",\n  \"bookContentMarkdown\": \"markdown\"\n}"
      },
      "typeVersion": 1.3
    },
    {
      "id": "04bc9c11-9816-4d26-b3da-9f92559d1f67",
      "name": "配置元数据",
      "type": "n8n-nodes-base.set",
      "position": [
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      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "1ff0b9a4-7d60-44ec-b047-e49252f1ace9",
              "name": "Drive Folder ID",
              "type": "string",
              "value": "your_folder_id"
            },
            {
              "id": "523998b6-631e-484e-bb78-fb0b38f00184",
              "name": "S3BaseURL",
              "type": "string",
              "value": "https://your_bucket_name.s3.ap-southeast-1.amazonaws.com/"
            },
            {
              "id": "630ed341-4064-4ae1-b3e1-cf36555bb04c",
              "name": "=PictureURL",
              "type": "string",
              "value": "=https://your_bucket_name.s3.ap-southeast-1.amazonaws.com/{{ $('Book Brief Agent').item.json.output.book_brief.working_title.replaceAll(\" \",'')}}-{{ $workflow.id }}.png"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "770f93e9-f4b7-4d08-861c-5d89de5fa601",
      "name": "将文档转换为 PDF",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        2192,
        -432
      ],
      "parameters": {
        "fileId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $json.id }}"
        },
        "options": {
          "googleFileConversion": {
            "conversion": {
              "docsToFormat": "application/pdf"
            }
          }
        },
        "operation": "download"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "fC471es5gk5Mm900",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "8688f126-e490-49e5-9a15-a1f80e999389",
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        320,
        0
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4.1-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "PPSwAKeLQYgAPobT",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "0a085c77-8a24-4297-8b42-de7bfbb64a11",
      "name": "生成封面图像",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "position": [
        1072,
        -432
      ],
      "parameters": {
        "model": "dall-e-2",
        "prompt": "={{ $json.output.bookCoverPrompt }}",
        "options": {},
        "resource": "image"
      },
      "credentials": {
        "openAiApi": {
          "id": "PPSwAKeLQYgAPobT",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1.8
    },
    {
      "id": "d7705daf-bf94-40a9-8358-661c7617583b",
      "name": "上传至 AWS S3",
      "type": "n8n-nodes-base.awsS3",
      "position": [
        1296,
        -432
      ],
      "parameters": {
        "fileName": "={{ $('Book Brief Agent').item.json.output.book_brief.working_title.replaceAll(\" \",'')}}-{{ $workflow.id }}.{{ $json.fileExtension }}",
        "operation": "upload",
        "bucketName": "wisestackai",
        "additionalFields": {
          "acl": "publicRead",
          "grantRead": true,
          "grantReadAcp": true
        }
      },
      "credentials": {
        "aws": {
          "id": "IZYsJuHhfVJ3PIrC",
          "name": "AWS account"
        }
      },
      "typeVersion": 2
    },
    {
      "id": "b0dd7e17-b059-4ac2-bde6-ed3b15dc270a",
      "name": "构建图书 HTML",
      "type": "n8n-nodes-base.markdown",
      "position": [
        1744,
        -432
      ],
      "parameters": {
        "mode": "markdownToHtml",
        "options": {},
        "markdown": "=![Alt text]({{ $json.PictureURL }})\n\n{{ $('Book Writer Agent').item.json.output.bookContentMarkdown.replaceAll(\"---\",'/n') }}"
      },
      "typeVersion": 1
    },
    {
      "id": "2254d49e-29c7-4e06-ac75-f4c4c0b60f02",
      "name": "上传到 Google Drive",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        1968,
        -432
      ],
      "parameters": {
        "url": "https://www.googleapis.com/upload/drive/v3/files?uploadType=multipart&supportsAllDrives=true",
        "body": "=--foo_bar_baz\nContent-Type: application/json; charset=UTF-8\n\n{\n  \"name\": \"{{ $('Book Brief Agent').item.json.output.book_brief.working_title }}: {{ $('Book Brief Agent').item.json.output.book_brief.subtitle }}\",\n  \"mimeType\": \"application/vnd.google-apps.document\",\n  \"parents\": [\"{{ $json['Drive Folder ID'] }}\"]\n}\n\n--foo_bar_baz\nContent-Type: text/html; charset=UTF-8\n\n{{ $json.data }}\n--foo_bar_baz--",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "sendQuery": true,
        "contentType": "raw",
        "sendHeaders": true,
        "authentication": "predefinedCredentialType",
        "rawContentType": "multipart/related; boundary=foo_bar_baz",
        "queryParameters": {
          "parameters": [
            {
              "name": "uploadType",
              "value": "multipart"
            },
            {
              "name": "supportsAllDrives",
              "value": "true"
            }
          ]
        },
        "headerParameters": {
          "parameters": [
            {
              "name": "boundary",
              "value": "foo_bar_baz"
            }
          ]
        },
        "nodeCredentialType": "googleDriveOAuth2Api"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "fC471es5gk5Mm900",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "53f746bb-13f6-4807-9bc8-154f546da928",
      "name": "归档至 Drive 文件夹",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        2416,
        -432
      ],
      "parameters": {
        "name": "={{ $json.name }}.pdf",
        "driveId": {
          "__rl": true,
          "mode": "list",
          "value": "My Drive"
        },
        "options": {},
        "folderId": {
          "__rl": true,
          "mode": "list",
          "value": "1IPcko8bzogO3W4mxhrW2Q017QA0Lc5MI",
          "cachedResultUrl": "https://drive.google.com/drive/folders/1IPcko8bzogO3W4mxhrW2Q017QA0Lc5MI",
          "cachedResultName": "SmartSales"
        }
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "fC471es5gk5Mm900",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "45fd8cf7-c850-4c7a-bb7a-af78cf6fd675",
      "name": "便签",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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        -1008
      ],
      "parameters": {
        "width": 992,
        "height": 1920,
        "content": "# 使用 AI Tool Node 和 GPT-4、DALL-E 的多智能体图书创作工作流"
      },
      "typeVersion": 1
    },
    {
      "id": "e9b3dc5a-aac3-4323-8071-e873c0e4dbc5",
      "name": "便签1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -560,
        -608
      ],
      "parameters": {
        "height": 128,
        "content": "### 1. 聊天消息触发器"
      },
      "typeVersion": 1
    },
    {
      "id": "e24ae4de-8286-4b5b-a47d-296c53c065bf",
      "name": "便签 2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -272,
        -624
      ],
      "parameters": {
        "content": "### 2. 生成图书概要"
      },
      "typeVersion": 1
    },
    {
      "id": "e8b11622-5a76-4de4-8c93-fcdc17368d8e",
      "name": "便签 3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        272,
        -624
      ],
      "parameters": {
        "width": 512,
        "height": 144,
        "content": "### 3. 通过图书写作智能体扩展内容"
      },
      "typeVersion": 1
    },
    {
      "id": "1fd03f2c-4309-4ffc-96cd-aa7b3b0063d3",
      "name": "便签 4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1040,
        -608
      ],
      "parameters": {
        "width": 384,
        "height": 128,
        "content": "### 4. 创建图书封面图像"
      },
      "typeVersion": 1
    },
    {
      "id": "0494df9e-3262-43c4-b805-1ad2523062ee",
      "name": "便签 5",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1504,
        -608
      ],
      "parameters": {
        "width": 560,
        "height": 144,
        "content": "### 5. 构建 HTML 格式图书"
      },
      "typeVersion": 1
    },
    {
      "id": "242a61f9-9867-4db4-82c7-7f1cd63555b0",
      "name": "便签6",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      ],
      "parameters": {
        "width": 448,
        "height": 144,
        "content": ""
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "pinData": {},
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "6b734114-8c9f-465a-a39a-dec9e185ad7e",
  "connections": {
    "gpt-4.1-mini": {
      "ai_languageModel": [
        [
          {
            "node": "Book Brief Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "gpt-4.1-mini1": {
      "ai_languageModel": [
        [
          {
            "node": "Book Writer Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "gpt-4.1-mini2": {
      "ai_languageModel": [
        [
          {
            "node": "Content Writer Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Designer Agent": {
      "ai_tool": [
        [
          {
            "node": "Book Writer Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Build book html": {
      "main": [
        [
          {
            "node": "Upload to Google Drive",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Book Brief Agent": {
      "main": [
        [
          {
            "node": "Book Writer Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Upload to AWS S3": {
      "main": [
        [
          {
            "node": "Configure metadata ",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Book Writer Agent": {
      "main": [
        [
          {
            "node": "Generate cover image",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "Designer Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Configure metadata ": {
      "main": [
        [
          {
            "node": "Build book html",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Content Writer Agent": {
      "ai_tool": [
        [
          {
            "node": "Book Writer Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Generate cover image": {
      "main": [
        [
          {
            "node": "Upload to AWS S3",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Upload to Google Drive": {
      "main": [
        [
          {
            "node": "Convert document to PDF",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Convert document to PDF": {
      "main": [
        [
          {
            "node": "Archive to Drive Folder",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Structured Output Parser": {
      "ai_outputParser": [
        [
          {
            "node": "Book Brief Agent",
            "type": "ai_outputParser",
            "index": 0
          }
        ]
      ]
    },
    "Structured Output Parser1": {
      "ai_outputParser": [
        [
          {
            "node": "Book Writer Agent",
            "type": "ai_outputParser",
            "index": 0
          }
        ]
      ]
    },
    "When chat message received": {
      "main": [
        [
          {
            "node": "Book Brief Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}