IRON/OS

About IRON/OS

IRON/OS is a Claude skill for strength training. It interviews you once about your goal, equipment, schedule, current lifts and any injuries, writes a training programme for you to read and approve, then builds a single-file workout app you keep on your phone. After a session you paste the app's summary back to Claude, which rewrites the plan based on what you logged — and if a movement starts hurting, you say so in plain words and it swaps in an alternative and rebuilds the app. Requires Claude; installers are provided for Windows and Mac. It states it is fitness guidance, not medical advice, and to see a physiotherapist or doctor for pain that is severe, worsening, or follows an injury.

Key features

• One interview covering goals, equipment, schedule and injuries
• Programme you review and approve before starting
• Builds a single-file workout app for your phone
• Rewrites the plan from your logged sessions
• Swaps out movements that cause pain