A lot of the ideas expressed here are already available in a couple of the better Clojure development setups (known in Clojure as refactoring tools) -- since it

A lot of the ideas expressed here are already available in a couple of the better Clojure development setups (known in Clojure as refactoring tools) -- since it is a lisp, that makes it a good language for implementing this stuff. However, in reality most Clojure devs are not taking advantage of all that this style of editing provides, partly because it requires more than the tool: it requires a different perspective on the code you write to think in this "refactor" way.