Founder of http://commando.io here - Really cool interface. We are doing some of the same sort of things to help with orchestration of servers. Currently we are using `libssh2` via a PHP module, but switching to a sparkling new node.js interface for the SSH and SCP connections and executions shortly.
This seems to be more like a Rundeck to me, i.e. parallel script dispatch?
Idempotent models are kind of important when managing systems in production environments as systems can be in heterogenous states and well, scripts fail. Part of the goal should be to get out of the practice of writing scripts.
