{
  "steps": [
    {
      "tool": "text_clean",
      "options": {},
      "enabled": true,
      "name": "1. Clean text (header whitespace, smart quotes, em-dash)"
    },
    {
      "tool": "format_standardize",
      "options": {
        "column_types": {
          "Date": "date",
          "Amount": "currency",
          "Balance": "currency",
          "Vendor": "name"
        },
        "currency_decimal": "auto",
        "currency_preserve_code": false,
        "currency_decimals": 2,
        "date_output_format": "%Y-%m-%d"
      },
      "enabled": true,
      "name": "2. ISO dates · numeric amounts (parens-negative) · vendor casing"
    },
    {
      "tool": "missing",
      "options": {
        "strategy": "none",
        "standardize_sentinels": true,
        "sentinels": ["N/A", "n/a", "—", "-", "?", "(blank)", "(none)", "unknown", "#N/A"]
      },
      "enabled": true,
      "name": "3. Standardize disguised nulls (— / N/A / (blank))"
    },
    {
      "tool": "dedup",
      "options": {
        "survivor_rule": "most_complete",
        "merge": false,
        "date_column": "Date",
        "strategies": [
          {
            "columns": [
              {"column": "Date",   "algorithm": "exact",        "threshold": 100},
              {"column": "Amount", "algorithm": "exact",        "threshold": 100},
              {"column": "Vendor", "algorithm": "jaro_winkler", "threshold": 80}
            ]
          }
        ]
      },
      "enabled": true,
      "name": "4. Dedup transactions on Date+Amount+fuzzy Vendor"
    }
  ]
}