Clojure Eval Plugin Question

I have been experimenting with Clojure eval using the :results option in the code block. I was wondering if there is any way to control code execution from a plugin. I was able to get the user code from a block and now I would like to run that code one time from my plugin and insert the output as new block… the problem I have having is finding a way to invoke code evaluation from the plugin, I am looking for something like “sci/eval-string”. Not sure if this is even possible, thanks.