Which of the following is not a template element that is designed to make the project more effective?

Descriptions of work packages are a core template element that define the scope of discrete deliverables and guide team members in executing the work correctly.

Required resources and skills are a key template element that ensures the right people and materials are identified and planned for each work package.

Required actions to complete the project scope define the specific steps needed to achieve deliverables and are a standard template element for guiding execution.

A contract file is a procurement and legal document that records the terms, obligations, and records of an agreement with an external vendor or supplier - it is not a template element used to structure or guide the execution of project work. Templates are internal planning tools designed to standardize and improve project delivery, while a contract file belongs to procurement management and legal recordkeeping.