langchain create_agent is a super minimal agent harness very easy to customize with... middleware!!! as you build task-specific harnesses, g…

The create_agent function in LangChain provides a minimal, lightweight agent framework designed for easy customization through middleware, enabling developers to build task-specific agent harnesses with flexible extensibility. This approach allows users to modify agent behavior without extensive boilerplate code while maintaining clean architecture patterns.

Source: Harrison Chase (X) | 2026-06-03