Mine

if ($1 == ?mode) {
  if ($2) && (!$3) {
    if ($left($2,1) == $chr(43)) || ($left($2,1) == $chr(45)) {
      if ($remove($2,$left($2,1)) !iswmcs $chan(#ashdod).mode) { mode #ashdod $2 | msg #ashdod Done. | halt }
      else { halt }
    }
  }
}