Comment by dhamidi

Maybe useful inspiration from TCL: there are many commands that define new variables, which makes modeling the stack unnecessary.

For example:

  lappend responses [dict status 200 body ...]

Appends a new dict to the list held in the variable responses, creating the variable if necessary.

I can see that being an attribute:

  <request-send url="..." as="greeting" />
  <response-text response="greeting" as="text" />
  <selection-set-text text="text" />