u/Eeshita77

There's no shortage of APIs for the input side of health (especially food) tracking:

• Nutritionix
• Passio
• Edamam, etc...

And with LLMs, the input layer is basically solved: drop a photo or type a description and get clean structured macros back.

Tracking health data is easier than it's ever been.

What I haven't been able to find is a clean Swift package for the write side of the pipeline.

Example: user sends text or a photo in chat, macros calculated with LLM, app pushes the result into HealthKit.

• HKCorrelation(.food) to bundle kcal + macros as one expandable entry
• Atwater (4/4/9) auto-balancer for editable fields
• Deduplication so re-sending the same input doesn't double write
• Handling deletion, edits etc.

Same shape would apply to workouts, body measurements, cycle data, etc.

Is there a package that handles this cleanly that I missed, or is everyone doing it manually?

I revived an old iOS app I built 2 years ago.

Claude agents in Xcode are slower, stupider, and miss all the cool CC features (/btw anyone...)

The only upgrade was not having to screenshot the ux as the agent can screenshot the Canvas itself.

Overall, still making majority of the updates in Claude Code and using Xcode just for UX changes and testing.