Nico, if I understand correctly, that's not going to work for you. Even though both are written in javascript, plug-ins for Construct must be written specifically to support the Construct plugin APIs. Where NPM is a collection of node.js plug-ins.
So you could take the source of an NPM plugin, if the license allowed, and port it to Construct.
SDK docs
https://www.construct.net/make-games/manuals/addon-sdk