Lisp offers a lot of ways to check what there is. You can inspect, search, look at source code, docs, assembly code. All of these things are dynamically inspect

Lisp offers a lot of ways to check what there is. You can inspect, search, look at source code, docs, assembly code. All of these things are dynamically inspectable. Tools like Emacs and SLIME make it easier. You can still look at the files that get loaded. Lisp organizes itself around systems (libraries) and packages (namespaces). It's good to check what packages a system has, then you can check out the symbols provided by a package. Lisp isn't totally wild-west in the concept of the Lisp image. There is organization to good code.