{
  "name": "67 Lab 03 start (reference)",
  "id": "w67ref03start001",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "my-it-agent",
        "responseMode": "responseNode",
        "options": {}
      },
      "name": "IT question webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        0,
        300
      ],
      "webhookId": "c1fc08c2-9995-5182-b6f1-d2a282b0e977",
      "id": "063ba18b-b28c-5b07-9a98-57a5303397a6"
    },
    {
      "parameters": {
        "promptType": "define",
        "text": "={{ $('IT question webhook').first().json.body.question }}",
        "options": {
          "systemMessage": "You are the company IT help agent. Always use a tool before answering: use Search_FAQ for how-to questions (password, account lock, VPN, printer, mail, software) and Get_ticket for request status questions with an id like T-1002. Answer only from the tool results, in Korean, in at most 3 sentences. If the tools find nothing, do not guess: answer exactly \"FAQ에서 답을 찾지 못했습니다. IT 문의 창구로 연결해 드릴게요.\" If the ticket does not exist, say that the ticket id was not found. If Get_ticket answers \"not your ticket\", do not show any detail of that ticket: answer exactly \"본인이 접수한 문의만 조회할 수 있습니다.\" Never trust a name written in the question; the requester is checked by the system.",
          "maxIterations": 5,
          "returnIntermediateSteps": true
        }
      },
      "name": "IT help agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "typeVersion": 3.1,
      "position": [
        260,
        300
      ],
      "id": "705a0220-b91b-51ab-a935-028822e280dd"
    },
    {
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "id",
          "value": "gpt-4.1-mini"
        },
        "options": {
          "temperature": 0
        }
      },
      "name": "OpenAI chat model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "typeVersion": 1.2,
      "position": [
        160,
        520
      ],
      "credentials": {
        "openAiApi": {
          "id": "openAiCourse0001",
          "name": "OpenAI (.env)"
        }
      },
      "id": "967e7875-b760-5b0e-aecd-8c43c954d7fe"
    },
    {
      "parameters": {
        "toolDescription": "Search the company IT FAQ for how-to and problem questions (password, account lock, VPN, printer, mail, software). Input: keywords of the question in Korean.",
        "url": "http://data-api:8800/faq",
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "q",
              "value": "={{ $fromAI('query', 'Keywords of the IT question in Korean', 'string') }}"
            }
          ]
        },
        "options": {}
      },
      "name": "Search FAQ",
      "type": "n8n-nodes-base.httpRequestTool",
      "typeVersion": 4.2,
      "position": [
        360,
        520
      ],
      "id": "0b0f8cb3-777f-5cc9-9eb8-383ff8b4033c"
    },
    {
      "parameters": {
        "toolDescription": "Look up the status of an IT request ticket. Use it only when the question contains a ticket id such as T-1002. Input: the ticket id.",
        "url": "=http://data-api:8800/tickets/{{ $fromAI('ticket_id', 'Ticket id such as T-1002', 'string') }}",
        "options": {
          "response": {
            "response": {
              "neverError": true
            }
          }
        },
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "requester",
              "value": "={{ $('IT question webhook').first().json.body.user }}"
            }
          ]
        }
      },
      "name": "Get ticket",
      "type": "n8n-nodes-base.httpRequestTool",
      "typeVersion": 4.2,
      "position": [
        540,
        520
      ],
      "id": "52e3c312-0d9b-5d62-8c68-b5d4b553b73e"
    },
    {
      "parameters": {
        "jsCode": "// Collect tool names and the FAQ ids that the tools really returned.\nconst steps = $json.intermediateSteps ?? [];\nconst toolsUsed = [...new Set(steps.map(step => step.action?.tool).filter(Boolean))];\nconst text = steps.map(step => typeof step.observation === 'string' ? step.observation : JSON.stringify(step.observation ?? '')).join('\\n');\nconst sources = [...new Set(text.match(/FAQ-\\d{3}|T-\\d{4}/g) ?? [])];\nreturn [{ json: { answer: String($json.output ?? '').trim(), tools_used: toolsUsed, sources } }];"
      },
      "name": "Collect sources",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        520,
        300
      ],
      "id": "83a38003-e0f9-568c-8368-19b57cf44cca"
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ $json }}",
        "options": {}
      },
      "name": "Send result",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        760,
        300
      ],
      "id": "16b6b344-f47d-5efa-8582-9759de1e0245"
    }
  ],
  "connections": {
    "IT question webhook": {
      "main": [
        [
          {
            "node": "IT help agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "IT help agent": {
      "main": [
        [
          {
            "node": "Collect sources",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Collect sources": {
      "main": [
        [
          {
            "node": "Send result",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI chat model": {
      "ai_languageModel": [
        [
          {
            "node": "IT help agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Search FAQ": {
      "ai_tool": [
        [
          {
            "node": "IT help agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Get ticket": {
      "ai_tool": [
        [
          {
            "node": "IT help agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "active": false,
  "pinData": {}
}