I wanted to test a practical idea: AI should help us make things people can use, not just give us impressive answers. The workflow worth copying 1. Define the experience: a small, gentle 3D café, not an endless feature list. 2. Write constraints: local play, no account required by the game, readable touch controls and a finite first release. 3. Give the assistant appropriate tools and review their actual outputs. A named plugin is not proof it executed a task. 4. Implement a playable loop before polishing the promotional materials. 5. Test the real menus, style changes, recipes and recovery paths. 6. Keep the working version when a newer build regresses. We used JavaScript/WebGL for the game and Python/Playwright for browser checks. Build Web Apps and Test Android Apps workflow instructions informed the work; browser tests did not substitute for Android-device testing. This is a chat-led development case, not evidence that every app can be built, fully tested and approved by a store in a few minutes. Which would you like me to unpack next: the prompt, the tool setup, or the testing process? Play the game: https://sellsystems.itch.io/capy-boba-club Join the discussion: https://www.producthunt.com/posts/capy-boba