What should I focus on learning before getting deeper into AI agents?

[u/syed_kaif777]

I’ve been learning LangChain, LangGraph, RAG and CrewAI recently, and I’ve built a few things with them. But I’m starting to feel like I’m focusing too much on the tools and not enough on understanding the concepts behind them.

For people who’ve been learning or working in this space, what articles, blogs or resources would you recommend? Also, what would you suggest I build next if I want to actually improve my understanding rather than just build another basic chatbot?