Positive feedback and inquiry about the AI system

I was really impressed with the RPG AI system you made. I had tried to make one at home with Python, Langraph and Notepad. I had made several functions for it, but I couldn't keep it consistent because I had to use 5 different AIs and if one of them sent a response in the wrong format, the whole system would crash and I would have to start over. I would like to know what languages ​​and modules you used to make this system and how you managed to make the AI ​​pull characters and items that were out of context to use in the RPG. I tried to do this in my project, but I always ended up with a disorganized context or characters that kept appearing too early and repeatedly. ps: sorry for the confusing English, I'm using google translate because I don't speak English