Tampermonkey Greasemonkey userscript

Hello, I read your project brief. Can you please elaborate what you mean by link verification and calculations on webpage so I can better understand the problem you'd like to get solved using Greasemonkey? I have experience in writing user scripts for Greasemonkey. In fact I'm the regular user of Greasemonkey. I use it in Firefox. Feel free to contact me if you'd like to discuss your project even while I'm offline. I get notified by Freelancer.com when someone sends me a message. I'll do my best to give you a reply as soon as possible. Thank you.

I have 15 year of JavaScript experience with engineering and IT computing. Computation with JavaScript in some cases require engineering experience.