@welshpixie all ours are old, is the thing? https://web.archive.org/web/20151105174155/https://adainitiative.org/2014/02/18/howto-design-a-code-of-conduct-for-your-community/ isn't even on the live Internet as far as we know

other than that, there's https://www.ashedryden.com/blog/codes-of-conduct-101-faq and https://geekfeminism.fandom.com/wiki/Code_of_conduct_evaluations - that last one links several examples

and there's https://frameshiftconsulting.com/2018/12/10/free-code-of-conduct-enforcement-book-available-now/ , which we haven't read but was written by the experts who made the very first link