{
  "steps": [
    {
      "tool": "text_clean",
      "enabled": true,
      "options": {
        "trim": true,
        "collapse_whitespace": true,
        "fold_smart_chars": true,
        "strip_zero_width": true
      }
    },
    {
      "tool": "format_standardize",
      "enabled": true,
      "options": {
        "column_types": {
          "Invoice_Date": "date",
          "Due_Date": "date",
          "Amount": "currency",
          "Email": "email"
        }
      }
    },
    {
      "tool": "missing",
      "enabled": true,
      "options": {
        "strategy": "none",
        "standardize_sentinels": true,
        "sentinels": ["—", "-", "?", "(blank)", "TBD", "unknown", "(none)", "N/A", "#N/A"]
      }
    },
    {
      "tool": "dedup",
      "enabled": true,
      "options": {
        "survivor_rule": "most_complete",
        "merge": true,
        "strategies": [
          {
            "columns": [
              {"column": "Invoice", "algorithm": "exact", "threshold": 100}
            ]
          }
        ]
      }
    }
  ]
}