pocket_archive/config/model/schema/collection.lua

return {
    core = true,

    properties = {
        long_description = {
            uri = "pas:longDescription",
            label = "Long description",
            description = "Text document in Markdown format with a detailed \z
                description of the collection.",
            type = "resource",
            range = {file = true},
        },
    }
}