Making command line tools at work really made me appreciate the work it takes to make a good one. Do you have a good `--help`? Did you catch the common mistake

Making command line tools at work really made me appreciate the work it takes to make a good one. Do you have a good `--help`? Did you catch the common mistakes and return a helpful error message? Did you put reasonable defaults? Do you have enough examples on how to actually use it: not just one running example, but actually one that uses at least _some_ of the options. Your UX instincts do get tested in this.