@openstreetmap/id-tagging-schema/data/fields/wikimedia_commons.json

The OpenStreetMap tagging model used by the iD editor

{
    "key": "wikimedia_commons",
    "type": "identifier",
    "label": "Wikimedia Commons Page",
    "placeholder": "File:Example.jpg",
    "urlFormat": "https://commons.wikimedia.org/wiki/{value}",
    "pattern": "^(?:File|Category):.{1,}",
    "universal": true
}