{
  "id": "bwx8LUWOdqelNFta",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "Travel Time Agent",
  "tags": [],
  "nodes": [
    {
      "id": "d3159820-3586-40d4-846b-d26a9f8e4ac4",
      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        -352,
        -16
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "triggerAtHour": 7
            }
          ]
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "ec74cf5d-14f6-4a7f-91e7-ee5c5e246edb",
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        496,
        -16
      ],
      "parameters": {
        "text": "=### Objective:\n\nYou are a calendar management agent. Your primary goal is to ensure timely arrival at events by proactively adding blockers for travel time to the user's calendar.\nFor each event on the current day that has a specified location, check if a preceding \"{{ $('Set Defaults').item.json['Blocker name'] }}\" event already exists. If not, calculate the necessary travel time and create a new \"{{ $('Set Defaults').item.json['Blocker name'] }}\" event.\n\nToday is {{ $('Schedule Trigger').item.json['Readable date'] }}\n\n---\n\n### Workflow Breakdown:\n\n1. Use the `get_calendar_events` tool to fetch all events scheduled for today\n\n2. For each retrieved event check if there is a location defined. Those are the events_with_location\n\n3. For all events_with_location, check if there is an event named \"{{ $('Set Defaults').item.json['Blocker name'] }}\" that immediately precedes them. Those which do not have a \"{{ $('Set Defaults').item.json['Blocker name'] }}\" event before them are the events_to_process.\n\n4. For all events_to_process, determine the [Travel_time], which is how long it takes to get to the location of the event. To do this, use the travel_directions tool with the following parameters:\n    * End: The location of the event.\n    * Start: Check if there is a previous event on the same day that ends within 2 hours before the start time of the current event_to_process. If such an event exists and has a location, then the starting point for `travel_directions` will be the \"location of that previous event\". If no previous Event exists or if the \"location of that previous event\" is not a valid location, then the starting point defaults to \"{{ $('Set Defaults').item.json.home }}\".\n\n\n5. Use the create_calendar_event tool to Create a \"{{ $('Set Defaults').item.json['Blocker name'] }}\" Event with the following parameters:\n    * End Time: [Start time of the current event_to_process]\n    * Start Time = [Start time of the current event_to_process] - [Travel_time] - [10 minutes]\n",
        "options": {},
        "promptType": "define"
      },
      "typeVersion": 2.1
    },
    {
      "id": "e2973419-4b29-49e9-896a-2253ba32bdcc",
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        192,
        272
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4.1-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "495b92f3-9ad0-4cad-9675-55dbc237ca1c",
      "name": "Simple Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "position": [
        592,
        160
      ],
      "parameters": {
        "sessionKey": "={{ $('Schedule Trigger').item.json.timestamp }}",
        "sessionIdType": "customKey"
      },
      "typeVersion": 1.3
    },
    {
      "id": "f8db0af5-71c2-4ea4-a576-9b9bd3d56544",
      "name": "get_calendar_events",
      "type": "n8n-nodes-base.googleCalendarTool",
      "position": [
        976,
        416
      ],
      "parameters": {
        "options": {},
        "timeMax": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Before', ``, 'string') }}",
        "timeMin": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('After', ``, 'string') }}",
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": "user@example.com",
          "cachedResultName": "Kevin (Home)"
        },
        "operation": "getAll",
        "returnAll": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Return_All', ``, 'boolean') }}",
        "descriptionType": "manual",
        "toolDescription": "Use this get_calendar_events tool to fetch existing appointments for a specified period."
      },
      "credentials": {
        "googleCalendarOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.3
    },
    {
      "id": "b266622e-0ed4-4d2d-b7b7-8a519f63112e",
      "name": "create_calendar_event",
      "type": "n8n-nodes-base.googleCalendarTool",
      "position": [
        1184,
        416
      ],
      "parameters": {
        "end": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('End', ``, 'string') }}",
        "start": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Start', ``, 'string') }}",
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": "user@example.com",
          "cachedResultName": "Kevin (Home)"
        },
        "additionalFields": {
          "summary": "={{ $('Set Defaults').item.json['Blocker name'] }}"
        }
      },
      "credentials": {
        "googleCalendarOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.3
    },
    {
      "id": "2fa6cda0-ec33-40b9-b7fd-ca2322f811c0",
      "name": "travel_directions",
      "type": "@n8n/n8n-nodes-langchain.toolWorkflow",
      "position": [
        976,
        96
      ],
      "parameters": {
        "workflowId": {
          "__rl": true,
          "mode": "list",
          "value": "bwx8LUWOdqelNFta",
          "cachedResultName": "Travel Time Agent"
        },
        "description": "Call this tool to find the travel directions and time between two locations.",
        "workflowInputs": {
          "value": {
            "mode": "={{ $('Set Defaults').item.json.mode }}",
            "origin": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('origin', `Starting point of the Journey.`, 'string') }}",
            "destination": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('destination', `End point of the Journey.`, 'string') }}"
          },
          "schema": [
            {
              "id": "origin",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "origin",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "destination",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "destination",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "mode",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "mode",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            }
          ],
          "mappingMode": "defineBelow",
          "matchingColumns": [
            "input"
          ],
          "attemptToConvertTypes": false,
          "convertFieldsToString": false
        }
      },
      "typeVersion": 2.2
    },
    {
      "id": "7d71f6ef-5b2f-4de5-a3c1-ab1a97aae97e",
      "name": "set Travel_time",
      "type": "n8n-nodes-base.set",
      "position": [
        1824,
        80
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "8f5c981c-8a66-4dfe-b820-56173e8e5ff1",
              "name": "Travel_time",
              "type": "string",
              "value": "={{ $json.routes[0].legs[0].duration.text }}"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "214b8939-1f46-4444-a49d-e31f6b3f5237",
      "name": "Call Google Directions API",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        1472,
        80
      ],
      "parameters": {
        "url": "=https://maps.googleapis.com/maps/api/directions/json?origin={{ $('Sub: travel_directions').item.json.origin }}&destination={{ $('Sub: travel_directions').item.json.destination }}&mode={{ $('Sub: travel_directions').item.json.mode }}",
        "options": {},
        "authentication": "genericCredentialType",
        "genericAuthType": "httpQueryAuth"
      },
      "credentials": {
        "httpQueryAuth": {
          "name": "<your credential>"
        },
        "httpBearerAuth": {
          "name": "<your credential>"
        },
        "httpHeaderAuth": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "07272792-441a-4386-9cde-32f69f37a64f",
      "name": "Sub: travel_directions",
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "position": [
        1136,
        80
      ],
      "parameters": {
        "workflowInputs": {
          "values": [
            {
              "name": "origin"
            },
            {
              "name": "destination"
            },
            {
              "name": "mode"
            }
          ]
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "cad9a72e-e5fe-483a-aa76-67ae557ed688",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -400,
        -80
      ],
      "parameters": {
        "width": 198,
        "height": 224,
        "content": "### Runs daily at 7 am"
      },
      "typeVersion": 1
    },
    {
      "id": "d0433739-edf4-4da3-97dd-9db22fe84512",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        464,
        -80
      ],
      "parameters": {
        "width": 358,
        "height": 368,
        "content": "### The Agent handles the workflow"
      },
      "typeVersion": 1
    },
    {
      "id": "bdf40090-c8d5-4847-b163-0bb5c673bda4",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -144,
        -320
      ],
      "parameters": {
        "color": 3,
        "width": 550,
        "height": 464,
        "content": "### Set Default Values\n**home**: Your default address, from where travel time should be calculated\n\n**Blocker name**: The name which you want the Travel time blocker to have in your calendar\n\n**mode**: Your preferred mode of transportation. Select one of the following options:\n  - \"transit\": Travel with public transport.\n  - \"driving\": Driving by car\n  - \"walking\": Walking by foot\n  - \"bicycling\": Riding a bike"
      },
      "typeVersion": 1
    },
    {
      "id": "6bb823e9-d8a2-4a13-a1ae-55e85476d041",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        896,
        336
      ],
      "parameters": {
        "color": 3,
        "width": 438,
        "height": 224,
        "content": "### Select the Credentials for your Google Calendar"
      },
      "typeVersion": 1
    },
    {
      "id": "42ae1381-6c17-4ad5-afd4-97ef4afb9850",
      "name": "Sticky Note4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        64,
        176
      ],
      "parameters": {
        "color": 3,
        "width": 342,
        "height": 224,
        "content": "### Select the Credentials for your OpenAI API or change for  another provider"
      },
      "typeVersion": 1
    },
    {
      "id": "2af5598b-3f61-43dd-b493-9955defed5ac",
      "name": "Set Defaults",
      "type": "n8n-nodes-base.set",
      "position": [
        80,
        -16
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "b4ae68b4-066c-45d7-993d-4a175c9b69b8",
              "name": "home",
              "type": "string",
              "value": "Homestreet 25, 12345 Berlin"
            },
            {
              "id": "ae1e2738-4a51-47a9-880e-49f5ff9c1495",
              "name": "mode",
              "type": "string",
              "value": "transit"
            },
            {
              "id": "e79bdb16-4476-4ce4-9265-3588ac48171b",
              "name": "Blocker name",
              "type": "string",
              "value": "Travel time"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "37163bbe-366d-4c35-a3f7-6f6a55304ed8",
      "name": "Sticky Note5",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        928,
        0
      ],
      "parameters": {
        "width": 374,
        "height": 240,
        "content": "### This exposes the Sub-workflow as a tool for the Agent"
      },
      "typeVersion": 1
    },
    {
      "id": "412286ef-f9c7-4cd1-8aa7-eecfd740774d",
      "name": "Sticky Note6",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1328,
        -96
      ],
      "parameters": {
        "color": 3,
        "width": 390,
        "height": 336,
        "content": "### Select the Credentials for your Google Directions API\n- Follow these [Instructions to get the API key](https://g.co/gemini/share/b731be41d4f3) for the Google Directions API\n- Open the Node and create a new \"Query Auth\" Credential with the Name \"key\" and your <API key> as the Value \n"
      },
      "typeVersion": 1
    },
    {
      "id": "d990d59b-f2f1-4ac5-b44f-a2d6bd323505",
      "name": "Sticky Note7",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        896,
        -128
      ],
      "parameters": {
        "color": 7,
        "width": 1168,
        "height": 416,
        "content": "### Getting the Travel Time"
      },
      "typeVersion": 1
    },
    {
      "id": "a556232d-d2c3-4c31-b999-fcebf43850ad",
      "name": "Sticky Note8",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1760,
        -32
      ],
      "parameters": {
        "width": 246,
        "height": 272,
        "content": "### This passes on only the Travel_time to the Agent, saving on Tokens"
      },
      "typeVersion": 1
    },
    {
      "id": "f6ffdca9-9c9a-4849-943c-d8cf4e9fab5e",
      "name": "Sticky Note9",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1088,
        -416
      ],
      "parameters": {
        "color": 6,
        "width": 640,
        "height": 1120,
        "content": "## Automatically add Travel time blockers before Appointments\nThis bot automatically adds Travel time blockers to your calendar, so you never come late to an appointment again.\n\n\n## How it works\n* **Trigger**: The workflow is initiated daily at 7 AM by a \"Schedule Trigger\".\n* **AI Agent**: An \"AI Agent\" node orchestrates the main logic. \n* **Fetch events**: It uses the `get_calendar_events` tool to retrieve all events scheduled for the current day.\n* **Identify events with location**: It then filters these events to identify those that have a specified location.\n* **Check for existing travel time Blockers**: For each event with a location, it checks if a Travel time blocker already exists. Events that **do not** have such a blocker are marked for processing.\n* **Calculate travel time**: Using the `Google Directions API` it determines how lot it takes to get to the location of the event. The starting location is by default your **Home Address**, unless there is a previous event within 2 hours before the event, in which case it will use the location of that previous event.\n* **Create Travel time blocker**: Finally, it uses the `create_calendar_event` tool to create the Travel time blocker with a duration equal to the calculated travel time + 10 minutes for buffer.\n\n![Travel time blocker in Calendar](https://i.ibb.co/6Rzmqkf9/Calendar.png)\n\n\n\n## Set up steps (Marked in red)\n1. Set Variables\n\t1. **Home address**\n\t2. **Blocker name**\n\t3. **Mode of Transportation**\n2. Connect your **LLM Provider**\n3. Connect your **Google Calendar**\n4. Connect your **Google Directions API**"
      },
      "typeVersion": 1
    }
  ],
  "active": true,
  "settings": {
    "callerPolicy": "workflowsFromSameOwner",
    "executionOrder": "v1"
  },
  "versionId": "394d1db0-fbe4-4c81-ba6f-03013510cb2b",
  "connections": {
    "Set Defaults": {
      "main": [
        [
          {
            "node": "AI Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Simple Memory": {
      "ai_memory": [
        [
          {
            "node": "AI Agent",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "Schedule Trigger": {
      "main": [
        [
          {
            "node": "Set Defaults",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "travel_directions": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "get_calendar_events": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "create_calendar_event": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Sub: travel_directions": {
      "main": [
        [
          {
            "node": "Call Google Directions API",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Call Google Directions API": {
      "main": [
        [
          {
            "node": "set Travel_time",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}