Show HN: Symphony – a live map of your AI coding agents (github.com)

Symphony, an open-source control room for AI coding agents, has been announced, enabling real-time collaboration by visualizing edits made by agents such as Claude Code, Codex, and opencode within software repositories. This tool addresses a fundamental challenge faced by teams using coding agents: understanding which agents are accessing a repository simultaneously, and thereby preventing merge conflicts. Symphony achieves this by utilizing a lightweight hook that streams every edit by agents into a shared live map of the codebase, with innovative features for collision detection and dependency visualization. The significance of Symphony lies in its blend of decades of research in human-computer interaction with the needs of modern AI-driven development. By providing a shared visual workspace that highlights agent activity and potential conflicts, teams can enhance awareness and collaboration when managing AI agents. The platform offers advanced functionalities such as a 3D agent map, collision alerts through Slack integrations, and optional LLM enrichment for summarizing activity. Easy to deploy with a few environment variable configurations and a free Supabase project, Symphony promises to streamline operations for teams working with autonomous coding agents, making it a noteworthy addition to the AI/ML landscape.