definitions/feature_rules/desert_after_surface_desert_well_feature.json

{
  "format_version": "1.13.0",
  "minecraft:feature_rules": {
    "description": {
      "identifier": "minecraft:desert_after_surface_desert_well_feature",
      "places_feature": "minecraft:desert_well_feature"
    },
    "conditions": {
      "placement_pass": "after_surface_pass",
      "minecraft:biome_filter": [
        {
          "test": "has_biome_tag",
          "operator": "==",
          "value": "desert"
        }
      ]
    },
    "distribution": {
      "iterations": 1,
      "scatter_chance": {
        "numerator": 1,
        "denominator": 500
      },
      "coordinate_eval_order": "zxy",
      "x": {
        "distribution": "uniform",
        "extent": [ 0, 16 ]
      },
      "y": 128,
      "z": {
        "distribution": "uniform",
        "extent": [ 0, 16 ]
      }
    }
  }
}