CodeAct is a technique to do tool calling that does NOT rely on built in tool calling in model APIs, but rather writes code to call functions.
In this video, we explore an open source prebuilt package for getting started with CodeAct, built on top of LangGraph
GitHub: https://github.com/langchain-ai/langgraph-codeact/tree/harrison/some-changes
CodeAct paper: https://arxiv.org/abs/2402.01030