Good practices in data scripts

Hey guys! Hope youre having a great weekend. Need some help on advice or tips to build sustainable and scalable code, currently im working as a data analyst and tend to do some projects in the ML side, i use AI to help me handle the coding part while i manage the business side and logic, the way i use Claude or GPT is that i ask for specific snippets that handle what im building in the moment instead of asking for a full script, but tend to notice that AI always