Agent frameworks save you from re-implementing the loop, the tool registry, the cancellation logic, and the multi-agent dispatch. The choice between frameworks is mostly a choice about how you express the agent's shape: code (LangChain, CrewAI), graph (LangGraph), config (Digitorn). Each style has trade-offs. The honest take is in the comparison piece linked below.
Engineering notes from the Digitorn team. No marketing, no launch announcements, no "10 prompts that will change your life". Just the things we write that we'd want to read.