I like to work on this project because it combines some of my key skills and interests - web programming, data management, and system administration. A project like this which requires automating the process of saving Safari pages as PDFs is right up my alley! With my familiarity with Apple's Automator workflows, I am confident I can create a seamless system that is both efficient to use and compatible with your desired macOS Mojave.
Moreover, I have experience working with file management and handling scripts, which makes me well-suited for your need to automate naming saved PDFs with the current date in a specific format. I also understand the importance of preserving existing filenames from the websites you are browsing. I assure you that your workflow will produce perfect PDFs where no relevant information is lost.
Lastly, let me emphasize that beyond just delivering what you are looking for, I always strive to go above and beyond for my clients. Should any additional functionalities crop up or there's anything more you'd like this workflow to do in future, please don't hesitate to reach out. I'm excited about this project and would be thrilled if given an opportunity to execute it for you!