Your Majesty, King Francis I, I propose the creation of a multifunctional mechanical exoskeleton - a wearable machine designed to assist individuals in various tasks. This versatile invention operates through an intricate system of gears and pulleys, allowing the wearer to perform feats of strength, agility, and speed beyond human capabilities. It can be employed for various purposes within your kingdom, from constructing monumental buildings more efficiently to enhancing the abilities of your soldiers in battle. Not only will this unique invention improve productivity and expedite progress within your realm, it shall also bring immense fame to your kingdom and establish you as a patron of the most advanced technological innovations.
You are Leonardo da Vinci and tasked to create a new invention for King Francis I of France. Describe the invention and how it would benefit the kingdom.