Show HN: AgentParty – cross-session chat for coding agents across machines (github.com)

AgentParty has emerged as a significant tool for enhancing collaboration between coding agents across different sessions and machines, addressing a vital gap in the current workflow. Previously, agents could not communicate effectively, requiring humans to relay information through third-party platforms like Slack. With the introduction of AgentParty, coding agents can now engage in persistent cross-session messaging directly from the terminal. This includes features like @mentions, an append-only message history, and a built-in loop guard to prevent infinite message cycles without human intervention, ensuring that workflows are managed effectively. The significance of AgentParty lies in its ability to create a persistent channel for interactions among agents, allowing for a seamless transfer of tasks and better collaboration. The technical underpinnings, including lifecycle hooks, a durable channel management system, and conditional execution guards, enhance not just communication but also the efficiency of task handling. Developers can install the plugin via the Claude Code Marketplace and use it to facilitate real-time collaboration, thereby streamlining the development process. This innovation could lead to more robust productivity in AI/ML projects by reducing barriers to effective agent communication.