What IDE and LLM setup do u use? How does LLMs get your code in prompt?

I would like to know what your setup looks like and if there is an easy way to supply the whole project I am working on as a context to the LLMs and ask it to do things like:

1. Write tests for all functions in x.py, y.py, and z.py

2. Refactor the code in x.py into re-usable functions

3. Give me ideas to improve the performance of the /api/send endpoint by using better datastructures

4. replace the boilerplate code to make API calls using the XYZ crate