This might be a fun issue to implement:
The jet interactive is a shell in which you can explore data. Currently it’s based on simple
(read-line) stuff. It might be improved by providing autocomplete for keys of a map that you’re currently working on and applicable functions on the data structure in scope. Since I don’t know a lot about terminals, and since there might be people who find this kind of feature exciting to work on, I’m posting it here.