Show HN: Agent-contracts, contract-based LangGraph agents (github.com)

A new project called "agent-contracts" has been announced, introducing a modular, contract-driven architecture for building scalable LangGraph agents. This framework addresses the challenges associated with constructing complex multi-agent systems by decoupling node behavior from graph topology, thereby enabling developers to define strict interfaces while maintaining flexibility in LLM-based routing. Instead of the traditional manual wiring of graph nodes, developers can create a NodeContract for each agent specifying its inputs, outputs, and operational triggers, with the framework automating the routing and state management processes. This development is significant for the AI/ML community as it enhances maintainability and scalability for multi-agent applications, crucial in production environments. By providing a structured way to manage multiple agents and their interactions, "agent-contracts" facilitates collaborative development across teams and ensures type safety through strict interface definitions. Key features include enhanced observability, modular agent development, and a robust runtime capable of integrating deterministic rules with LLM decision-making. This positions "agent-contracts" as a valuable tool for developers seeking to build complex AI systems while maintaining clarity and efficiency in their architecture.