If it's useful to anyone, I made a VS Code/Cursor extension that combines all open files into one big text document.

I use it with ChatGPT's o1 pro (which can handle around 100,000 tokens).

1. Open all of the files I think are relevant

2. Use the extension to combine them

3. Copy and paste into ChatGPT

https://marketplace.visualstudio.com/items?itemName=DVYIO.co...