RoadRaven turns a plain roadmap.json into a live visual tree. Any process can update a node over WebSocket — so Claude Code (via the bundled MCP plugin) moves your tasks as it finishes them, and a CI run can flip a node to green. It's local-first (binds to 127.0.0.1, works offline, no cloud), keyboard-first to edit, and the schema is yours to define. Windows + Linux, alpha. Free for personal & noncommercial use.