Developed and delivered the Age-Client Plus Contract Term Denial Rule for the Jesus-Santos-babelgroup/Proyecto-Final repository, focusing on policy enforcement and robust validation. The solution computes the sum of a client’s age and contract term in years, denying eligibility when the total is less than or equal to 80. Implemented in Java using Spring Boot, the rule explicitly handles missing birth or contract dates by throwing clear errors. Comprehensive unit tests were written to cover scenarios below, at, and above the threshold, as well as cases with missing data, ensuring reliable validation and maintainable code for future compliance needs.