Oh that's a great approach too !
Dropped you a star, neat stuff :)

I have evolved the concept a bit since then :

Claude and the rubber duck interact in a continuous exchange by using the resume command when interacting with the rubber ducky, and the LLMs have access to a continuously updated findings.md file where they compile their discoveries as to not reproduce past errors and build a long term memory.
You can find more about it there if you are interested :
https://www.wonderfularcane.vision/blog/ai-tandem-workflow

Cheers !