Beta testers wanted: Workout Writer + Intervals.icu

Hey everyone - I’ve been working on an app called Workout Writer, which turns plain-language running and cycling instructions into structured workouts for Apple Watch, Garmin and, now, Intervals.icu.

The bit that might be especially interesting to this community is the macOS MCP/CLI interface. It lets AI agents create, schedule and manage workouts directly. With the new Intervals.icu integration, those workouts can also be sent to Intervals.icu and synced onwards to compatible platforms and devices. I've been using it with Claude on macOS for months, and it's been great for helping me stay fit whilst I can't run, but will really come into its own when I'm training properly again.

Anyway, this is my own project and it’s still evolving, so I’m keen to get feedback from people experimenting with AI-powered training workflows. I’d love your help finding rough edges and shaping where it goes next.

You can join the TestFlight beta here - completely free for testers:

https://testflight.apple.com/join/2VcH6wZQ

General info here:

https://workoutwriter.com

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Beta testers wanted: Workout Writer + Intervals.icu