A method of insulin delivery, the method may include obtaining one or more blood glucose readings of a user, and, based on the blood glucose readings, generating a set of insulin delivery actions that may include delivery of a baseline basal rate or predefined variations of the baseline basal rate. The method may also include monitoring previous insulin delivery actions to the user to determine whether the previous insulin delivery actions include insulin beyond a threshold amount, where the previous insulin delivery actions may include delivery of the baseline basal rate or predefined variations of the baseline basal rate, and, based on the previous insulin delivery actions including insulin beyond the threshold amount, adjusting the set of insulin delivery actions.
