I noticed a similar optimization path with skills, where I now have subagents to analyze the performance of a previous skill/command/hook execution, triggered by a command. I've pushed this to my plugin marketplace https://github.com/athola/claude-night-market

I have been experimenting with these same type of factory pattern skills. Thanks for sharing.

After a session with Claude Code I just tell it "turn this into a skill, incorporate what we've learned in this session".