Real AI agent use cases, with sources and setup prompts
Training plans, health trackers and medical paperwork people handed to AI agents, linked to the original posts. 11 matching use cases below, each with a public source.
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A personal trainer bot reads your sleep, HRV, resting heart rate and workouts from Apple Health through the HealthAgent app, builds a plan and adjusts it every week. You approve every data export on your phone.
He asked Claude Code for a treadmill app at 22:05 and it was done by 07:05. When he called the 3D "a bit cheap" at 01:59, three agents each built a new world and a jury of agents picked the winner.
LiftNote, a first app built with Claude Code in about 72 hours: type "bench 185 5x5" and it becomes a clean workout log with a built-in rest timer. Free, no account, no ads.
The author used AI to reverse engineer the SunnyFit BLE protocol and built a small terminal connector that publishes live workout data to Redis pub/sub for any visualization.
Last week the author set up a Grok Bot as a personal trainer.
A Show HN shared an app created with Gemini that uses Pennsylvania insurance law to help people improve their health insurance appeals.
Set up a finance bot that asked for his healthcare portal login and found a year-old surgery bill that had gone to collections without his knowledge.
Built Repstack, a no-gym calisthenics app with programs, rep counting, streaks and progress, using Claude Code.
Used Claude Code with Opus to analyze his own MRI files and wrote up the process.
A 17-year-old vibe-coded with Claude a fitness app that estimates body fat percentage from three photos.
A parent wrote about vibe coding his way to tools for his family's health and launched Gamow Labs.
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