Yeah, the basics of LangChain are fairly simple, and reimplementing a loop like that in Go, including tool usage, was very straightforward when I was writing Cuttlefish[0] (a toy desktop chat app for ChatGPT that can use stuff like your local terminal or Google).
The magic in LangChain, though, is the ecosystem. I.e. they have integrations with tons of indexes, they have many tool implementations, etc. This is the real value of LangChain. The core ReAct loop is quite trivial (as this article demonstrates).
The magic in LangChain, though, is the ecosystem. I.e. they have integrations with tons of indexes, they have many tool implementations, etc. This is the real value of LangChain. The core ReAct loop is quite trivial (as this article demonstrates).
[0]: https://github.com/cube2222/cuttlefish