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Message: [QUOTE="ghorner, post: 4639152"] I'm wondering what you all consider the best way for creating a large number of irb commands. By commands I'm referring to methods for the default irb object like irb,fg and jobs. Here are some of the different ways that come to mind: * Extend the default irb object with modules. * Include modules into the default irb object. However this has the nasty side effect of making those methods accessible to all objects. * Just define methods in the default irb object. Simple and seems to be the common way in irbrc's. * Use irb's internal command system i.e. self.def_extend_command() in [URL]http://github.com/rubyspec/matzruby/blob/9ca4e66f27e2563512afdd4c70afab34d80d513d/lib/irb/extend-command.rb[/URL] Seems like overkill. To me the only serious options are extending or just defining the method. By extending I get an ancestry trace on where commands came from which is important when dealing with a large number of commands. Also, if i do switch subsessions or workspaces I can just extend in needed functionality. Since defining methods in the irb object lacks the ancestry trace and the ability to reuse them in other context, my vote is for extending. Thoughts? Gabriel [/QUOTE]