we are in the world where everyone is doing things differently now, but here is my 5 cents.

I almost 100% sure everything that you described is part of nested harness of your company, not some external registry.

what would you like to share? there a few generic skills, that are optional , e.g. tdd, etc. sure. Maybe environment related items, like going to db , how to use secrets etc, the surface of that is very very thin.

you place them in git, and vibe code a tiny script on how to pull it in. done?

the rest are debugging scripts, very specific skills, that are very coupled to the root repo. I tried a few similar "external" systems. Anything beyond ralph loop/use tdd skills, feels hostile in your internal system.