function __scriptura_seen_script
    test (count $argv) -ne 0
    or set --function argv (commandline -xpc)[2..]

    argparse --stop-nonopt --move-unknown n/new -- $argv

    if not set --query argv[1]
        return 1
    end

    set --function target $SCRIPTURA_ROOT

    for arg in $argv
        if test "$arg" = --
            break
        else if path is --type dir $target/$arg
            set --function target $target/$arg
        else if path is --type file --perm exec $target/$arg
            return 0
        else
            if set --query _flag_new
                # the first non-directory argument is probably a script name
                return 0
            end
            break
        end
    end

    return 1
end