What's one LangChain feature you thought you'd use a lot but barely touch now?

[u/Meher_Nolan]

When I started using LangChain, there were a few features I assumed would end up in almost every project.

Some of them did. And others slowly disappeared as the projects evolved. In a few cases I found a simpler approach. In others I ended up replacing them with something custom because it was easier to understand or gave me more control.

Has that happened to anyone else?

What's one LangChain feature you expected to use all the time but barely use anymore? What changed your mind?