It has been a huge productivity boost for me as an assistant (not full auto-pilot). Some examples: 1) add relevant indexes to my database schema (it will analyze the code and look for columns that should be indexed). 2) write a Typescript type that takes all the methods of a class and returns a new identical type but where all the return types are void. 3) (firmware development) the on_receive callback is causing a stack overflow, put the crypto operations in a separate thread. Sometimes I get a bit more ambitious and asks for "implement the following feature: <describe feature>", but manually approve code changes and steer it in the right direction.