The word "cost" in this context is not what you think.
Cost can be used to describe the action of determining a price for something. To "cost" a project or item is to calculate a price for it.
For example, if a homeowner wants a contractor to build a garage the contractor will have a project estimator "cost" the project.
It sounds stupid though, agreed.
Not as bad as "action" or "inbox" or a shitload of other stupid buzzwords.
The worst is "toolbox/toolkit".
We had a vendor trying to sell an updated version of a machine. It was very similar to the one we had but he couldn't say that.
He said "It shares many aspects of commonality".