Check-in Analyzer for Claude: Weekly Client Reviews for Fitness Coaches

Paste a client's weekly check-in and get a review you can act on in two minutes.

What you get:

- Weekly average bodyweight and change as % per week, never judged from a single weigh-in

- Adherence counted honestly, day by day

- Lift-by-lift comparison with last week

- One clear decision: hold, adjust, or review with the client, with the reason tied to the numbers

- Red flags checked every week, including warning signs that need a professional

- A ready-to-send reply in your voice, 80 to 150 words

It changes one variable at a time and never invents data the client didn't log.

Tested side by side against plain Claude on sample check-ins.

Example (shortened)

The client's log: weigh-ins last week 83.4, 83.1, 82.8, 83.2, 82.9, 82.6, 82.7 kg; this week 82.9, 82.3, 82.6, 82.1, 82.5, 82.2, 82.0 kg; nutrition on target 6 of 7 days; 4 of 4 sessions done; goal fat loss.

Trend: weekly average 82.96 kg to 82.37 kg, down 0.59 kg (0.71% of body weight per week). The day-to-day ups, like 82.3 to 82.6, are left out of the decision.

Adherence: nutrition 6 of 7 days, training 4 of 4.

Decision: HOLD. The plan is being followed and the trend is moving at a steady pace, so nothing changes this week.

Who it's for

Online coaches and personal trainers who review weekly check-ins and want the math done the same way every time, plus a reply they only need to tweak.

Questions

Do I need a paid Claude plan? No, it works on all plans, including Free.

Does it replace my judgment? No. It shows the numbers and a suggested call with the reason. You decide and send the reply.

Can I try it first? Yes. Check-in Analyzer Lite is free: https://payhip.com/b/MOo7j, and so are the weight trend calculator: https://temperbyte.github.io/weight-trend-calculator/ and the client adherence calculator: https://temperbyte.github.io/client-adherence-calculator/

How to use: download the file, add it in Claude under Customize > Skills (+ > Create skill > Upload a skill), then paste a client's check-in. Works on all Claude plans, including Free. Code execution must be turned on in Settings > Capabilities.

This is a coaching tool, not medical or dietetic advice. You make the final decisions.