Daily Documentation Update (nightly)

The workflow JSON

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{
  "name": "Daily Documentation Update (Nightly)",
  "nodes": [
    {
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "cronExpression",
              "expression": "0 2 * * *"
            }
          ]
        }
      },
      "name": "Every Day at 2 AM",
      "type": "n8n-nodes-base.scheduleTrigger",
      "typeVersion": 1.1,
      "position": [
        250,
        300
      ],
      "id": "node-1"
    },
    {
      "parameters": {
        "command": "cd /home/justin/Code/ai-rag-stack && make update-docs"
      },
      "name": "Update Documentation",
      "type": "n8n-nodes-base.executeCommand",
      "typeVersion": 1,
      "position": [
        450,
        300
      ],
      "id": "node-2"
    },
    {
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{$json.exitCode}}",
              "operation": "equals",
              "value2": "0"
            }
          ]
        }
      },
      "name": "Check if Updates Found",
      "type": "n8n-nodes-base.if",
      "typeVersion": 1,
      "position": [
        650,
        300
      ],
      "id": "node-3"
    },
    {
      "parameters": {
        "functionCode": "// Only send notification if updates were found (nightly mode = quiet unless needed)\nconst output = $input.item.json.stdout;\nconst updatedMatch = output.match(/Repositories updated: (\\d+)/);\nconst updatedCount = parseInt(updatedMatch ? updatedMatch[1] : '0');\n\nif (updatedCount > 0) {\n  return {\n    json: {\n      message: `\ud83c\udf19 Nightly Documentation Update\\n\\n\u2713 ${updatedCount} repositories updated and re-ingested.\\n\\nTimestamp: ${new Date().toLocaleString()}`,\n      shouldNotify: true\n    }\n  };\n}\n\nreturn { json: { shouldNotify: false } };"
      },
      "name": "Format Notification",
      "type": "n8n-nodes-base.function",
      "typeVersion": 1,
      "position": [
        850,
        200
      ],
      "id": "node-4"
    },
    {
      "parameters": {
        "authentication": "headerAuth",
        "url": "https://hooks.slack.com/services/YOUR/SLACK/WEBHOOK",
        "options": {},
        "bodyParametersJson": "={\n  \"text\": \"{{$json.message}}\",\n  \"username\": \"AI RAG Documentation Bot\",\n  \"icon_emoji\": \":crescent_moon:\"\n}"
      },
      "name": "Send Slack Notification (Only if Updated)",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.1,
      "position": [
        1050,
        200
      ],
      "id": "node-5"
    }
  ],
  "connections": {
    "Every Day at 2 AM": {
      "main": [
        [
          {
            "node": "Update Documentation",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Update Documentation": {
      "main": [
        [
          {
            "node": "Check if Updates Found",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check if Updates Found": {
      "main": [
        [
          {
            "node": "Format Notification",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Format Notification": {
      "main": [
        [
          {
            "node": "Send Slack Notification (Only if Updated)",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "staticData": null,
  "tags": [
    {
      "name": "automation",
      "id": "1"
    },
    {
      "name": "nightly",
      "id": "3"
    }
  ],
  "triggerCount": 0,
  "updatedAt": "2025-10-17T00:00:00.000Z",
  "versionId": "1"
}

About this workflow

Daily Documentation Update (Nightly). Uses executeCommand, httpRequest. Scheduled trigger; 5 nodes.

Source: https://github.com/jconover/nexus-cortex/blob/6b8f6f05d5ebdc85e2d686c7a9d681b49810acec/n8n-workflows/daily-doc-update.json — original creator credit. Request a take-down →

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