Ask HN: What framework/tool should I use for building agents?

Hi all,

I recently started getting into agents and am looking into tools/frameworks to build my own agents. I am specifically looking for tools that allow me to "build from scratch", so preferably no n8n or some other agent builder platform. I stumbled upon Pydantic AI and it looks very promising. However, I was wondering the following: what is the current go-to standard in industry when it comes to tools/frameworks for building agents "from scratch"?

Best,

Berke