gBASIC. `help` for prompt commands, `quit` to leave.
> nodes = []
> append(nodes, { kind: "answer", text: "a dog" })
[{"kind":"answer","text":"a dog"}]
> count(nodes)
1
> list
  1  nodes = []
  2  append(nodes, { kind: "answer", text: "a dog" })
> run
> count(nodes)
1
> quit
Your program was not saved; `recover` will bring it back next time.
