Consider the Multi-tool. I randomly encountered an Alien who gave me a very good multi-tool with very strong lasers and stuff. All I had to add was the scanner and I was good to go.
However, after a while, I began wondering if it was worth deconstructing some of the upgrades in case I know a higher-tier blueprint. But I am not certain about which blueprints I know. As far as I'm aware, the only way to view the list of my known multi-tool blueprints is to deconstruct one slot and try to craft something new in it. But this seems wasteful. Is there not a way to view the list of known blueprints otherwise?