Show HN: CursorBird – Flap some wings while Cursor's agent is generating code (github.com)

CursorBird is an open-source Cursor extension (MIT) that launches a Flappy Bird–style mini-game whenever Cursor AI agents start generating code — automatically opening the game in a paused state and closing it when all agents finish. Installable from Cursor’s Extensions panel or via a VSIX, it requires Node.js in PATH and uses Cursor Hooks to detect agent lifecycle events; the extension auto-generates hook scripts (Node/SH or BAT) and configures ~/.cursor/hooks.json (or per-workspace .cursor/hooks.json) to track agents. The UI is simple: press Tab (configurable) to flap, track workspace-specific best scores, and customize physics, visuals and behavior through Cursor settings. For the AI/ML dev workflow the significance is pragmatic and cultural: it’s a lightweight, developer-focused UX enhancement that keeps engineers engaged during asynchronous agent runs (and avoids doomscrolling), while demonstrating how Cursor’s Hooks system can be extended for non-blocking integrations. Technical caveats: hooks are workspace-level (multi-root uses only the first folder; multiple windows on the same workspace share state), the extension writes workspace status files (.cursor/cursor-bird-status.json), and a restart of Cursor is required after hook setup. The project supports manual per-workspace hook setup, full uninstall cleanup, and contributions via GitHub.