To track workouts with AI, build your week at /#plan, paste the example coach instructions once into a new Project in Claude, ChatGPT or a similar tool, then paste each week's plan, log your sessions and answer the end-of-week check-in.
Please check with your doctor before starting a new plan, especially after a long break, an injury or if you take medication.
Who is doing the tracking?
Not the app. The weekly plan builder doesn't save your plan, store your answers or track progress. Refresh the page and the plan is gone.
Tracking happens in a place you control: a notes app, a Word document or, if you like, an AI tool. That AI tool is independent. It doesn't represent Fatboy Fitness in any way, and Fatboy Fitness doesn't make, endorse or review it. Whatever you paste into it is handled by that tool, so check its privacy settings and don't paste anything you wouldn't want it to hold.
How do you set it up, step by step?
- Build your plan at /#plan.
- Copy the "Coach instructions". This is an example prompt offered on the page.
- Create a new Project in Claude, ChatGPT or a similar tool, and paste the instructions in once, as the Project's instructions.
- Edit them. You're encouraged to change goals, injuries, tone and coaching style. They're an example, not a rulebook.
- Copy "This week's plan", or download it as a .md or .txt file, and paste it into the Project.
- Log each session as you finish it.
- Answer the end-of-week check-in when the AI asks.
- Return to the builder, choose "Coming back" and enter your answers for next week's plan.
- Repeat from step 5 each week.
What goes in the weekly text?
"This week's plan" is plain text. It includes a log line for each day, covering whether you did it, your effort out of 10, your steps and any notes. It also ends with a check-in of four questions.
Logging is quick. A message like "Done, 7 out of 10, 11,000 steps" is enough. Add a note if something hurt or went especially well.
What should you edit in the coach instructions?
Make them yours. Useful things to add:
- Your goal: what you're actually after this month.
- Injuries or niggles: so the AI doesn't suggest the wrong thing.
- Tone: blunt, gentle or somewhere in between.
- Coaching style: short replies, one question at a time, no pep talks.
An AI tool can make mistakes and isn't a doctor. For pain or anything health-related, talk to a qualified professional. The builder's percentage rules come from the builder, so use its output for the next week's plan. The full idea is in using AI with the weekly plan builder.
Why bother?
The builder handles the numbers. The AI tool gives you somewhere to talk through a week, keep notes and answer the check-in honestly, rather than guessing from memory. It's a bit like telling a training partner how it went, which is its own kind of accountability. If you'd rather have a human, workout partner or solo weighs up the options.
FAQs
Do I need an AI tool?
No. The plan works as plain text in any notes app or Word document, and you can log your sessions there.
Is the AI tool part of Fatboy Fitness?
No. It is independent and does not represent Fatboy Fitness.
Can I change the coach instructions?
Yes. They're an example, and you're encouraged to edit them.
The bottom line
Set the Project up once, paste in a week at a time and log honestly. Then take the check-in answers back to the builder for the next week. Build your weekly plan.
Go train, FATBOY.
This article is general information, not medical advice. Train at your own risk. If you have a health condition, take medication or are unsure whether exercise or a diet change is right for you, talk to your doctor first.
- weekly plan
- track workouts with AI
- Claude
- ChatGPT