Here is the full project prompt that turns Claude into a personal trainer that reads your real health data, builds workouts around your sleep and recovery, and drops them into your calendar. Copy it, paste it into your Claude project's custom instructions, and you're done.
The plan · 5 steps
The Full Prompt
How to Set It Up
This takes about 5 minutes. Once it's done, Claude becomes a personal trainer that reads your actual health data, builds workouts around how you slept and recovered, and drops them straight into your calendar.
Step 1: Create a Project in Claude
Go to claude.ai and click Projects in the left sidebar, then Create Project. Name it Fitness Coach. This project is where Claude will store all your fitness preferences, workout history, and the master prompt.
Step 2: Connect Apple Health (or Health Connect)
Open the Claude app on your iPhone. Go to Settings, then Permissions. Toggle on Health and approve all the data categories: steps, sleep, heart rate, workouts, and anything else it asks for. The more data you share, the better the recommendations get. On Android, connect Health Connect the same way through the Claude Android app settings.
If you wear an Apple Watch, Garmin, Whoop, or any wearable that syncs to Apple Health, Claude gets all of that data too. Your watch data flows into Apple Health, and Claude reads it from there.
Step 3: Connect Google Calendar
Go to claude.ai and open Settings (bottom left). Click Connectors, find Google Calendar, and hit Connect. Once connected, Claude can create calendar events for each workout at your preferred time.
Step 4: Paste the Project Instructions
Go back to your Fitness Coach project. Click Set custom instructions. Paste the entire prompt above. This is the brain of the whole system.
Step 5: Tell Claude Your Goal
Open a conversation inside the project and just tell Claude what you want. Something like "I want to lose 20 pounds. I have dumbbells at home and can work out 4 days a week." Claude will ask follow-up questions to build your profile, then start building your plan.
What You Need
You need a Claude Pro or Max plan for this to work. The Apple Health integration is currently in beta and available in the US. Claude can read your health data but cannot write to Apple Health. It can add events to your Google Calendar.
Bonus: Daily Auto-Check
Once your first plan is built, you can set Claude to automatically check your health data every morning and adjust your workout for the day. Go to Cowork, then Schedule a Task. Set it to run daily about 30 minutes before you usually check your phone in the morning.
Things to Say to Your Fitness Coach
Get the Full Guide
Download the PDF below for the printable version with the full setup walkthrough, decision engine breakdown, and prompt reference.