Maybe a deontological version would consist of not merely doing enough to avoid violating moral law, but using evidence to absolutely minimize the risk of violating any such duties. For example, the Center for Effective Deontology might research contracts people commonly sign (like cell phones or insurance) and provide advice on how to avoid accidentally violating them to reduce promise-breaking.
Maybe a deontological version would consist of not merely doing enough to avoid violating moral law, but using evidence to absolutely minimize the risk of violating any such duties. For example, the Center for Effective Deontology might research contracts people commonly sign (like cell phones or insurance) and provide advice on how to avoid accidentally violating them to reduce promise-breaking.