XFlow: An Executable Protocol Programming System for Reliable Multi-Agent Workflows

XFlow is introduced as an executable protocol programming system designed to enhance the reliability of multi-agent workflows in LLM-based systems. It features the XFlow Protocol Format (XPF), a domain-specific language that balances readability with executable protocol specifications, allowing for the explicit enforcement of workflow commitments. Key experiments demonstrate that XFlow significantly improves reliability by clarifying constraints and evidence handling, which is crucial for practitioners aiming to build robust multi-agent systems.