I'd like to see the whole list as a gist - name, description, sample input, sample output.

Eg: "tac", reverse lines in input, sample input: "first\nsecond\n", output: "second\nfirst\n".

There's already the "standard" gnu coreutils, as well as suckless tools, and 9base from plan9. And projects like https://github.com/uutils/coreutils

So there's plenty of places to draw inspiration from.

Examples of your work?