Wabi is a personal AI assistant that enables users to create functional mini-apps within chat conversations without coding. Users simply describe their desired app in plain English, and Wabi generates tools like trackers, polls, lists, or widgets. The author has compiled favorite prompts from an unofficial guide called Wabi Wiki. One useful prompt is to create a poll for group decisions, like choosing a movie for Friday night. Wabi excels at group applications and can be directed to specific threads or participants. Another effective use is to build trackers directly within chat threads, such as a weight tracker that logs entries when prompted. Habit trackers can also be created for morning routines with daily check-ins. Wabi can also place widgets on your home screen, like a countdown for an important date or event. Shared grocery lists are another feature, allowing multiple users to add items from their phones collaboratively. Additionally, Wabi can facilitate daily rituals between partners, such as a question of the day to answer together. For book clubs, it can create shared reading lists. Tips for effective prompting include requesting one tool per prompt, specifying the audience, indicating where the app should reside, and refining existing apps rather than starting over.