Ask HN: Building Applications with Langchain

Hey everyone,

I am super interested to learn more about challenges you faced when building and deploying applications with langchain.

Some questions that I had while building a small tool: How do you manage cost considering the big request overhead? How do you monitor if users actually get the expected responses? Have you encountered problems that were too complex for langchain and how did you work around?

Any extra insights are welcome! Cheers