minecraft-assets/data/minecraft/advancements/adventure/trade_at_world_height.json

{
  "parent": "minecraft:adventure/trade",
  "display": {
    "icon": {
      "item": "minecraft:emerald"
    },
    "title": {
      "translate": "advancements.adventure.trade_at_world_height.title"
    },
    "description": {
      "translate": "advancements.adventure.trade_at_world_height.description"
    },
    "frame": "task",
    "show_toast": true,
    "announce_to_chat": true,
    "hidden": false
  },
  "criteria": {
    "trade_at_world_height": {
      "trigger": "minecraft:villager_trade",
      "conditions": {
        "player": [
          {
            "condition": "minecraft:entity_properties",
            "predicate": {
              "location": {
                "position": {
                  "y": {
                    "min": 319.0
                  }
                }
              }
            },
            "entity": "this"
          }
        ]
      }
    }
  },
  "requirements": [
    [
      "trade_at_world_height"
    ]
  ]
}