@openstreetmap/id-tagging-schema/data/presets/natural/coastline.json

The OpenStreetMap tagging model used by the iD editor

{
    "icon": "temaki-beach",
    "geometry": [
        "line"
    ],
    "tags": {
        "natural": "coastline"
    },
    "terms": [
        "shore"
    ],
    "name": "Coastline"
}