Ask a human

{
  "name": "Ask a human",
  "nodes": [
    {
      "id": "a60c8572-56c1-4bf3-8352-a6419a475887",
      "name": "Window Buffer Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "position": [
        900,
        760
      ],
      "parameters": {},
      "typeVersion": 1.1
    },
    {
      "id": "b4f2e26c-903b-46b8-bd8b-110fd64de9e4",
      "name": "Not sure?",
      "type": "@n8n/n8n-nodes-langchain.toolWorkflow",
      "position": [
        1120,
        760
      ],
      "parameters": {
        "name": "dont_know_tool",
        "fields": {
          "values": [
            {
              "name": "chatInput",
              "stringValue": "={{ $('Chat Trigger').item.json.chatInput }}"
            }
          ]
        },
        "workflowId": "={{ $workflow.id}}",
        "description": "Use this tool if you don't know the answer to the user's question, or if you're not very confident about your answer."
      },
      "typeVersion": 1
    },
    {
      "id": "951cc691-b422-4ce6-901f-b7feb3afd1ad",
      "name": "Execute Workflow Trigger",
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "position": [
        540,
        1360
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "194ba9c0-e256-449a-8da7-ac5339123a99",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        500,
        1020
      ],
      "parameters": {
        "color": 7,
        "width": 1118.3459011229047,
        "height": 775.3931210698682,
        "content": "### Sub-workflow: Custom tool
The agent above can call this workflow. It checks if the user has supplied an email address. If they haven't it prompts them to provide one. If they have, it messages a customer support channel for help."
      },
      "typeVersion": 1
    },
    {
      "id": "38c6b363-45a7-4e72-9e40-8c0df3cc480f",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        500,
        460
      ],
      "parameters": {
        "color": 7,
        "width": 927.5,
        "height": 486.5625,
        "content": "### Main workflow: AI agent using custom tool"
      },
      "typeVersion": 1
    },
    {
      "id": "0389315b-e48d-4b00-b9a1-899302b1b094",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1060,
        700
      ],
      "parameters": {
        "color": 5,
        "width": 197.45572294791873,
        "height": 179.21380662202682,
        "content": "**This tool calls the sub-workflow below**"
      },
      "typeVersion": 1
    },
    {
      "id": "fb11064a-4cf5-4110-9e39-af24a3225164",
      "name": "Sticky Note5",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        700,
        680
      ],
      "parameters": {
        "color": 2,
        "width": 150,
        "height": 213.44323866265472,
        "content": "**Set your credentials**"
      },
      "typeVersion": 1
    },
    {
      "id": "d689021d-0a46-4dff-a01a-0b01ecdd198b",
      "name": "Sticky Note4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1020,
        1180
      ],
      "parameters": {
        "color": 2,
        "width": 178.0499248677781,
        "height": 250.57252651663197,
        "content": "**Set your credentials and Slack details**"
      },
      "typeVersion": 1
    },
    {
      "id": "0926cd61-c0b8-4bae-ae65-9afd130d17cd",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        340,
        520
      ],
      "parameters": {
        "color": 4,
        "width": 185.9375,
        "height": 214.8397420554627,
        "content": "## Try it out

Select **Chat** at the bottom and enter:

_Hi! Please respond to this as if you don't know the answer to my query._"
      },
      "typeVersion": 1
    },
    {
      "id": "cde69dfe-252e-4a05-8d56-fa79431df5d8",
      "name": "Sticky Note6",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1580,
        1600
      ],
      "parameters": {
        "height": 144.50520156238127,
        "content": "## Next steps

Learn more about [Advanced AI in n8n](https://docs.n8n.io/advanced-ai/)"
      },
      "typeVersion": 1
    },
    {
      "id": "927b775a-47f6-4067-a1a5-5f13dea28e45",
      "name": "Chat Trigger",
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "position": [
        600,
        520
      ],
      "webhookId": "785e0c0c-12e5-4249-9abe-47bb131975cb",
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "971e7b90-c2d8-4292-9da8-732d7d399f04",
      "name": "Prompt the user to provide an email",
      "type": "n8n-nodes-base.code",
      "position": [
        1060,
        1520
      ],
      "parameters": {
        "jsCode": "response = {\"response\":\"I'm sorry I don't know the answer. Please repeat your question and include your email address so I can request help.\"};
return response;"
      },
      "typeVersion": 2
    },
    {
      "id": "6f5a21b3-c145-46c8-8e69-660100c4a6fc",
      "name": "Confirm that we've messaged a human",
      "type": "n8n-nodes-base.code",
      "position": [
        1300,
        1260
      ],
      "parameters": {
        "jsCode": "response = {\"response\": \"Thank you for getting in touch. I've messaged a human to help.\"}
return response;"
      },
      "typeVersion": 2
    },
    {
      "id": "8b17da5e-e392-4028-91b0-bc02d34e46ed",
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        820,
        520
      ],
      "parameters": {
        "options": {
          "systemMessage": "Try to answer the user's question. When you can't answer, or you're not confident of the answer, use the appropriate tool. When you use the dont_know_tool, respond with the message from the tool."
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "990ecd3b-6aa0-4b17-8d01-d606b9164fa8",
      "name": "Check if user has provided email",
      "type": "n8n-nodes-base.if",
      "position": [
        760,
        1360
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "5e21e7c5-db60-4111-bb17-c289ae0fc159",
              "operator": {
                "type": "string",
                "operation": "regex"
              },
              "leftValue": "={{ $('Execute Workflow Trigger').item.json.chatInput }}",
              "rightValue": "/([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9_-]+)/gi"
            }
          ]
        }
      },
      "typeVersion": 2
    },
    {
      "id": "d14da0ae-06ca-422b-b5b6-e7759e74c787",
      "name": "Message Slack for help",
      "type": "n8n-nodes-base.slack",
      "position": [
        1060,
        1260
      ],
      "parameters": {
        "text": "={{ \"A user had a question the bot couldn't answer. Here's their message: \" + $('Execute Workflow Trigger').item.json.chatInput }}",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "name",
          "value": ""
        },
        "otherOptions": {}
      },
      "typeVersion": 2.1
    },
    {
      "id": "278391c7-6945-495e-a4f1-74fb8fcc3549",
      "name": "GPT4",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        740,
        740
      ],
      "parameters": {
        "model": "gpt-4",
        "options": {
          "temperature": 0.2
        }
      },
      "typeVersion": 1
    }
  ],
  "pinData": {},
  "connections": {
    "GPT4": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Not sure?": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Chat Trigger": {
      "main": [
        [
          {
            "node": "AI Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Window Buffer Memory": {
      "ai_memory": [
        [
          {
            "node": "AI Agent",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "Message Slack for help": {
      "main": [
        [
          {
            "node": "Confirm that we've messaged a human",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Execute Workflow Trigger": {
      "main": [
        [
          {
            "node": "Check if user has provided email",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check if user has provided email": {
      "main": [
        [
          {
            "node": "Message Slack for help",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Prompt the user to provide an email",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}