custom_mc_advancements/data/canopy/advancements/long_may_he_live.json

{
    "display": {
        "icon": {
            "item": "minecraft:axolotl_bucket"
        },
        "title": "LONG MAY HE LIVE.",
        "description": "Name an Axolotl",
        "frame": "task",
        "announce_to_chat": true
    },
    "parent": "canopy:neature",
    "criteria": {
        "name_axolotl": {
            "trigger": "minecraft:player_interacted_with_entity",
            "conditions": {
                "item": {
                    "items": ["minecraft:name_tag"]
                },
                "entity": {
                    "type": "minecraft:axolotl"
                }
            }
        }
    }
}