Scheduling Assistant - 03 Validate

The workflow JSON

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{
  "name": "Scheduling Assistant - 03 Validate",
  "nodes": [
    {
      "parameters": {},
      "id": "workflow-trigger",
      "name": "When called by another workflow",
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "typeVersion": 1,
      "position": [
        250,
        300
      ]
    },
    {
      "parameters": {
        "jsCode": "// Business logic validation\nconst items = $input.all();\nconst results = [];\n\nfor (const item of items) {\n  const data = item.json.schedulingData || item.json;\n  const normalized = data.normalized;\n  \n  const errors = [];\n  const warnings = [];\n  \n  // Validate date/time is in the future\n  const now = new Date();\n  const startTime = new Date(normalized.startTime);\n  \n  if (startTime <= now) {\n    errors.push('Meeting time must be in the future');\n  }\n  \n  // Validate working hours (9 AM - 5 PM by default)\n  const workingHoursStart = parseInt(process.env.WORKING_HOURS_START?.split(':')[0] || '9');\n  const workingHoursEnd = parseInt(process.env.WORKING_HOURS_END?.split(':')[0] || '17');\n  const meetingHour = startTime.getHours();\n  \n  if (meetingHour < workingHoursStart || meetingHour >= workingHoursEnd) {\n    warnings.push(`Meeting scheduled outside working hours (${workingHoursStart}:00 - ${workingHoursEnd}:00)`);\n  }\n  \n  // Validate weekend\n  const dayOfWeek = startTime.getDay();\n  if (dayOfWeek === 0 || dayOfWeek === 6) {\n    warnings.push('Meeting scheduled on weekend');\n  }\n  \n  // Validate duration\n  if (normalized.duration < 15) {\n    errors.push('Meeting duration must be at least 15 minutes');\n  }\n  if (normalized.duration > 480) {\n    errors.push('Meeting duration cannot exceed 8 hours');\n  }\n  \n  // Validate attendees\n  if (normalized.attendees.length === 0) {\n    errors.push('At least one attendee is required');\n  }\n  if (normalized.attendees.length > 50) {\n    warnings.push('Large number of attendees may impact scheduling');\n  }\n  \n  // Validate meeting not too far in future (1 year max)\n  const oneYearFromNow = new Date();\n  oneYearFromNow.setFullYear(oneYearFromNow.getFullYear() + 1);\n  if (startTime > oneYearFromNow) {\n    warnings.push('Meeting scheduled more than 1 year in advance');\n  }\n  \n  // Check lead time (at least 1 hour notice by default)\n  const minLeadTimeMinutes = parseInt(process.env.MIN_LEAD_TIME_MINUTES || '60');\n  const leadTimeMs = startTime - now;\n  const leadTimeMinutes = leadTimeMs / (1000 * 60);\n  \n  if (leadTimeMinutes < minLeadTimeMinutes) {\n    warnings.push(`Short notice: less than ${minLeadTimeMinutes} minutes lead time`);\n  }\n  \n  const validated = {\n    ...data,\n    validation: {\n      isValid: errors.length === 0,\n      errors: errors,\n      warnings: warnings,\n      validatedAt: new Date().toISOString(),\n      checks: {\n        futureDate: startTime > now,\n        workingHours: meetingHour >= workingHoursStart && meetingHour < workingHoursEnd,\n        validDuration: normalized.duration >= 15 && normalized.duration <= 480,\n        hasAttendees: normalized.attendees.length > 0,\n        adequateLeadTime: leadTimeMinutes >= minLeadTimeMinutes\n      }\n    },\n    stage: 'validated',\n    processedAt: new Date().toISOString()\n  };\n  \n  results.push({ json: validated });\n}\n\nreturn results;"
      },
      "id": "code-validate",
      "name": "Business Logic Validation",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        450,
        300
      ]
    },
    {
      "parameters": {
        "conditions": {
          "boolean": [
            {
              "value1": "={{$json.validation.isValid}}",
              "value2": true
            }
          ]
        }
      },
      "id": "if-valid",
      "name": "Is Valid?",
      "type": "n8n-nodes-base.if",
      "typeVersion": 1,
      "position": [
        650,
        300
      ]
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "valid-data",
              "name": "validatedData",
              "value": "={{$json}}",
              "type": "object"
            },
            {
              "id": "next-workflow",
              "name": "nextWorkflow",
              "value": "04_conflict_scan",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "id": "set-valid-output",
      "name": "Set Valid Output",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.2,
      "position": [
        850,
        200
      ]
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "invalid-data",
              "name": "invalidData",
              "value": "={{$json}}",
              "type": "object"
            },
            {
              "id": "next-workflow-reject",
              "name": "nextWorkflow",
              "value": "06_notify",
              "type": "string"
            },
            {
              "id": "notification-type",
              "name": "notificationType",
              "value": "validation_failed",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "id": "set-invalid-output",
      "name": "Set Invalid Output",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.2,
      "position": [
        850,
        400
      ]
    },
    {
      "parameters": {
        "workflowId": "={{$env.WORKFLOW_ID_CONFLICT_SCAN}}",
        "options": {
          "waitForSubWorkflow": false
        }
      },
      "id": "execute-conflict-scan",
      "name": "Trigger Conflict Scan",
      "type": "n8n-nodes-base.executeWorkflow",
      "typeVersion": 1,
      "position": [
        1050,
        200
      ]
    },
    {
      "parameters": {
        "workflowId": "={{$env.WORKFLOW_ID_NOTIFY}}",
        "options": {
          "waitForSubWorkflow": false
        }
      },
      "id": "execute-notify-failure",
      "name": "Notify Validation Failure",
      "type": "n8n-nodes-base.executeWorkflow",
      "typeVersion": 1,
      "position": [
        1050,
        400
      ]
    }
  ],
  "connections": {
    "When called by another workflow": {
      "main": [
        [
          {
            "node": "Business Logic Validation",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Business Logic Validation": {
      "main": [
        [
          {
            "node": "Is Valid?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Is Valid?": {
      "main": [
        [
          {
            "node": "Set Valid Output",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Set Invalid Output",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set Valid Output": {
      "main": [
        [
          {
            "node": "Trigger Conflict Scan",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set Invalid Output": {
      "main": [
        [
          {
            "node": "Notify Validation Failure",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1",
    "saveExecutionProgress": true,
    "saveDataErrorExecution": "all",
    "saveDataSuccessExecution": "all"
  },
  "staticData": null,
  "tags": [
    {
      "name": "scheduling-assistant",
      "id": "scheduling-tag-001"
    },
    {
      "name": "validation",
      "id": "validation-tag-001"
    }
  ],
  "triggerCount": 0,
  "updatedAt": "2026-01-19T19:59:10.000Z",
  "versionId": "v1.0.0"
}

About this workflow

Scheduling Assistant - 03 Validate. Uses executeWorkflowTrigger. Event-driven trigger; 7 nodes.

Source: https://github.com/jasonv2610/multi-agent-orchestration-architecture/blob/main/examples/scheduling-assistant/workflows/03_validate.json — original creator credit. Request a take-down →

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