Mostly use homegrown skills. For shared skillset at work, it's a standalone repo with a script for everyone to install the full set. For a personal collection I also use a script to sync a few upstream ones to keep everything in one place.

For evals I use the method outlined in the `skill-creator` skill from Anthropic.

In the skills, I try to use scripts, along with templates and json worksheets, as much as possible to scaffold and validate the work to make things more consistent and reliable.