{
  "version": 1,
  "input": {
    "format": "csv",
    "encoding": "utf-8",
    "deduplicate_by": ["email"]
  },
  "rules": [
    {"id": "trim", "operation": "trim_whitespace", "columns": ["name", "email", "city"]},
    {"id": "email-case", "operation": "lowercase", "columns": ["email"]},
    {"id": "title-case", "operation": "title_case", "columns": ["name", "city"]},
    {"id": "date-iso", "operation": "normalize_date", "columns": ["signup_date"], "output": "YYYY-MM-DD"}
  ],
  "deduplication": {
    "keep": "first",
    "key": ["email"],
    "applied_after_normalization": true
  }
}