Of course you can alias, but I was not very clear indeed. My point is that these tools ship multiple commands (z, zi, etc. autojump does too). I treat core shell commands as interfaces: keep the name, swap the implementation. If there's just one command, you can of course alias it (but why should I do this final step); if there are many, it turns into clutter. These tools should enhance existing commands instead of reinventing them: the goal is the same result, just faster and better. The philosophy is non-intrusive augmentation, like bash_completion or fzf.