Would you say the same for Mastra? If so, what would you say indicates a high quality candidate when they are discussing agent harnessing and orchestration?
I somewhat take issue as a LangChain hater + Mastra lover with 20+ years of coding experience and coding awards to my name (which I don't care about, I only mention it for context).
Langchain is `left-pad` -- a big waste of your time, and Mastra is Next.js -- mostly saving you infrastructure boilerplate if you use it right.
But I think the primary difference is that Python is a very bad language for agent/LLM stuff (e.g. static typesystem, streaming, isomorphic code, strong package management ecosystem is what you want, all of which Python is bad with). And if for some ungodly reason you had to do it in Python, you'd avoid LangChain anyway so you could bolt on strong shim layers to fix Python's shortcomings in a way that won't break when you upgrade packages.
Yes, I know there's LangChain.js. But at that point you might as well use something that isn't a port from Python.
> what would you say indicates a high quality candidate when they are discussing agent harnessing and orchestration?
Anything that shows they understand exactly how data flows through the system (because at some point you're gonna be debugging it). You can even do that with LangChain, but then all you'd be doing is complaining about LangChain.
> And if for some ungodly reason you had to do it in Python
I literally invoke sglang and vllm in Python. You are supposed to (if not using them over-the-network) use the two fastest inference engines there is via Python.
Python being a very bad language for LLM stuff is a hot take I haven’t heard before. Your arguments sound mostly like personal preferences that apply to any problem, not just agentic / LLM.
If we’re going to throw experience around, after 30+ years of coding experience, I really don’t care too much anymore as long as it gets the job done and it doesn’t get in the way.
LangChain is ok, LangGraph et al I try to avoid like the plague as it’s too “framework”-ish and doesn’t compose well with other things.
I'm not familiar with it. My first question would be: Are there any prominent projects that use it?
A lot of these frameworks are lauded, but if they were as good as they claim you would run into them in all sorts of apps. The only agents that i ever end up using are coding agents, i think they're obviously the most popular implementations of agents. Do they use langchain? No, i don't think so. They probably use in house logic cus it's just as easy and gives them more flexibility and less dependencies
avaer|2 months ago
Langchain is `left-pad` -- a big waste of your time, and Mastra is Next.js -- mostly saving you infrastructure boilerplate if you use it right.
But I think the primary difference is that Python is a very bad language for agent/LLM stuff (e.g. static typesystem, streaming, isomorphic code, strong package management ecosystem is what you want, all of which Python is bad with). And if for some ungodly reason you had to do it in Python, you'd avoid LangChain anyway so you could bolt on strong shim layers to fix Python's shortcomings in a way that won't break when you upgrade packages.
Yes, I know there's LangChain.js. But at that point you might as well use something that isn't a port from Python.
> what would you say indicates a high quality candidate when they are discussing agent harnessing and orchestration?
Anything that shows they understand exactly how data flows through the system (because at some point you're gonna be debugging it). You can even do that with LangChain, but then all you'd be doing is complaining about LangChain.
runeblaze|2 months ago
I literally invoke sglang and vllm in Python. You are supposed to (if not using them over-the-network) use the two fastest inference engines there is via Python.
stingraycharles|2 months ago
If we’re going to throw experience around, after 30+ years of coding experience, I really don’t care too much anymore as long as it gets the job done and it doesn’t get in the way.
LangChain is ok, LangGraph et al I try to avoid like the plague as it’s too “framework”-ish and doesn’t compose well with other things.
peab|2 months ago
A lot of these frameworks are lauded, but if they were as good as they claim you would run into them in all sorts of apps. The only agents that i ever end up using are coding agents, i think they're obviously the most popular implementations of agents. Do they use langchain? No, i don't think so. They probably use in house logic cus it's just as easy and gives them more flexibility and less dependencies