minecraft-assets/assets/minecraft/advancements/story/create_full_beacon.json

{
    "display": {
        "icon": "minecraft:beacon",
        "title": "Create a full beacon",
        "frame": "challenge"
    },
    "parent": "minecraft:story/create_beacon",
    "criteria": {
        "beacon": {
            "trigger": "minecraft:construct_beacon",
            "conditions": {
                "level": 4
            }
        }
    }
}