CarbSnap

Manage T1D just by talking

In Claude or ChatGPT

A meal, start to finish

remember: a slice of school pizza is 30g of carbs

Add or change one of this care circle's carb entries

Saved to Liam’s carb book: school pizza, 1 slice = 30 g.

liam’s lunch tomorrow: 2 slices of school pizza and 85g of apple

Estimate the carbs in a weighed meal

School pizza2 slices × 30 g, from your carb book60 g
Apple85 g × 13.8 g carbs/100 g11.7 g
Totalyour carb book, and USDA for the apple71.7 g

Look right? When should it go?

yes, lunch tomorrow

Prepare a meal

Ready to review, not yet sent. The link goes out at lunch tomorrow, 11:45 AM.

One press sends the carbs to Loop; a second press delivers the dose Loop works out.

text it to the nurse group at 8:30 tomorrow

Preview a text

For the Nurse group, 8:30 AM tomorrow — nothing queued yet:

“Good morning. Lunch is 72 g today. School pizza, Apple”

yes

Queue a previewed text

Queued, not sent yet. Your Mac sends it from your number.

Nurse groupKim (555) 010-2231 · Pat (555) 010-8890
Tomorrow 8:30 AM
Good morning. Lunch is 72 g today. School pizza, Apple
iMessage · from (555) 010-4477

The daily digest

CarbSnap · to you · 8:05 AM
Liam · 3 things to do, in order

The picture. Two separate, related things. Loop is correcting from inside its range, and those corrections are ending in lows — that is the correction range, which is set too low to leave room. And when Loop does correct, it overshoots — that is the ISF, which is set too strong. Raising the range stops the corrections that should not happen; raising the ISF number makes the ones that do smaller.

1
Raise the correction range. 100–115 → 110–125. Corrections from inside it are ending in lows. Loop › Therapy Settings › Correction Range
2
Weaken the ISF. 00:00–06:00: 130 → 143 mg/dL/U (+10%). Each correction gets smaller. Loop › Therapy Settings › Insulin Sensitivities
3
Low around 10:00 on school days — recess?. Add a “Recess” preset, on by 09:00: correction range 150–165, Overall Insulin Needs 50%. Loop › Overrides › +

Nothing changes until you make the change. Not a medical device.

Tell Claude or ChatGPT what’s for lunch — out loud in voice mode, typed, or as a photo. CarbSnap works out the carbs, texts the school nurse for you, and sends a daily digest that suggests Loop setting changes when the data points to one. Nothing reaches the pump on its own: you get a link, and one tap on that link sends the meal to Loop; a second delivers the dose Loop worked out. See everything it can do.

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