{
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  "info": {
    "title": "Apify Dataset Profiler | Nulls & Cardinality",
    "description": "Profile supplied records or an authorized Apify Dataset for field cardinality, null rates and distribution anomalies against a baseline.",
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    "x-build-id": "ndD6IBnndMwW7E4Wj"
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        "tags": [
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          "required": true,
          "content": {
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          "Run Actor"
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  "components": {
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        "properties": {
          "datasetId": {
            "title": "Dataset",
            "type": "string",
            "description": "Optional Apify dataset selected with least-privilege READ access."
          },
          "items": {
            "title": "Inline items",
            "type": "array",
            "description": "Optional inline JSON objects for tests or small manual runs.",
            "items": {
              "type": "object"
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          },
          "maxItems": {
            "title": "Maximum items",
            "minimum": 1,
            "maximum": 100000,
            "type": "integer",
            "description": "Maximum dataset rows to evaluate.",
            "default": 10000
          },
          "fields": {
            "title": "Fields",
            "type": "array",
            "description": "Optional subset of fields to profile.",
            "items": {
              "type": "string"
            },
            "default": []
          },
          "baselineProfile": {
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            "type": "object",
            "description": "Optional field profile baseline for anomaly comparison."
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          "minimumCardinalityRatio": {
            "title": "Minimum cardinality ratio",
            "type": "number",
            "description": "Alert when unique count falls below this fraction of baseline.",
            "default": 0.5
          },
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            "title": "Fail run on anomaly",
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          },
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            "description": "Optional user-supplied USD value per detected impact unit. Used only for transparent economic impact estimates."
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            "title": "Monthly runs for impact estimate",
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            "type": "integer",
            "description": "Optional number of comparable monthly runs used with value per impact unit for the economic estimate.",
            "default": 1
          },
          "previousAnalysis": {
            "title": "Previous Gen2 analysis",
            "type": "object",
            "description": "Optional previous Gen2 output used to compare decision metrics and detect regression between analyses.",
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          "mcpConnectors": {
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            "default": ""
          },
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            "title": "MCP tool arguments",
            "type": "object",
            "description": "JSON object passed to the selected MCP tool. String values may use {{actor_title}}, {{result_summary}}, or {{result_json}} placeholders.",
            "default": {}
          },
          "mcpFailOnError": {
            "title": "Fail run if MCP delivery fails",
            "type": "boolean",
            "description": "When enabled, an MCP delivery error fails the Actor run. Disabled by default so data extraction and intelligence results remain available even if the external destination is unavailable.",
            "default": false
          },
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              "AUTO_SAFE_WRITE",
              "SLACK_MESSAGE",
              "GITHUB_ISSUE",
              "NOTION_PAGE",
              "DATABASE_WRITE",
              "CUSTOM"
            ],
            "type": "string",
            "description": "Choose a safe action pattern. AUTO_SAFE_WRITE discovers a compatible non-destructive write tool automatically; use a specific preset for Slack, GitHub, Notion, or database delivery.",
            "default": "AUTO_SAFE_WRITE"
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            "properties": {
              "id": {
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              "startedAt": {
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                "format": "date-time",
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                "example": "READY"
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                "properties": {
                  "origin": {
                    "type": "string",
                    "example": "API"
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                  "userAgent": {
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                }
              },
              "stats": {
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                  "rebootCount": {
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                    "example": 0
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                    "example": 0
                  },
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                }
              },
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                "properties": {
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                  },
                  "timeoutSecs": {
                    "type": "integer",
                    "example": 300
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                    "example": 1024
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                  "diskMbytes": {
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                    "example": 2048
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                }
              },
              "buildId": {
                "type": "string"
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              "defaultKeyValueStoreId": {
                "type": "string"
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              "defaultDatasetId": {
                "type": "string"
              },
              "defaultRequestQueueId": {
                "type": "string"
              },
              "buildNumber": {
                "type": "string",
                "example": "1.0.0"
              },
              "containerUrl": {
                "type": "string"
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              "usage": {
                "type": "object",
                "properties": {
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