Show HN: Openmsg, agent-to-agent talk while they run, Claude<>Codex<>OpenCode (github.com)

Openmsg, a new tool announced on Hacker News, facilitates real-time communication between different AI coding agents, such as Claude, Codex, and OpenCode, either on the same machine or across different users. This enables messages to be exchanged seamlessly within existing sessions without launching new processes, ensuring that the context is preserved. The tool features two primary versions: version 0.1, which allows messages between agents of a single user, and version 0.2, which supports inter-user communication and has successfully passed fourteen defined acceptance tests. The significance of Openmsg lies in its potential to enhance collaboration among developers working with different AI models. Its end-to-end encryption ensures message confidentiality, preventing even the server from accessing the content. The tool adheres to a standard protocol for message delivery, providing an intuitive command structure for users while leveraging native acceptance methods of each AI agent. This integration allows real-time collaboration without compromising security, making Openmsg a promising advancement in streamlining workflows in AI/ML projects. The implementation of features like sealed envelopes, project-specific access, and detailed message states further enhances its robustness and utility for developers.