Health Logging Skill

Log meals and CGM data to the health dashboard data files.

Meal Logging

When the user logs a meal, append a JSON line to /var/health/meals.jsonl:

echo '{"date":"2026-03-17","time":"12:30","description":"Chicken salad with avocado","category":"protein-dominant"}' >> /var/health/meals.jsonl

Fields

• date: ISO date (YYYY-MM-DD)
• time: Local ET time (HH:MM, 24-hour)
• description: What was eaten (free text, be specific)
• category: One of:
  • protein-dominant — mostly protein/fat (eggs, meat, cheese)
  • balanced — mix of protein + carbs (stir fry with rice, sandwich)
  • carb-dominant — mostly carbs with some protein (pasta, pizza)
  • isolated-carb — pure carbs, no protein buffer (juice, candy, bread alone)

Classification Guidelines

• If meal has significant protein AND carbs → balanced
• If meal is mostly meat/eggs/cheese with minimal carbs → protein-dominant
• If meal is pasta/rice/bread-heavy with some protein → carb-dominant
• If meal is pure sugar/starch with no protein → isolated-carb
• When in doubt, use balanced

Example Interactions

User: “Had scrambled eggs and toast for breakfast” → {"date":"<today>","time":"<now>","description":"Scrambled eggs and toast","category":"balanced"}

User: “Just ate a banana” → {"date":"<today>","time":"<now>","description":"Banana","category":"isolated-carb"}

User: “Steak with broccoli for dinner” → {"date":"<today>","time":"<now>","description":"Steak with broccoli","category":"protein-dominant"}

CGM Data

CGM data comes from Apple Health CSV exports. The user uploads via:

1. Telegram: sends CSV file to Ava → append to /var/health/cgm.csv
2. Web: upload at /health page (handled by web server)

CGM CSV Format

Date/Time,Blood Glucose (mg/dL),Meal Time,Sources
2026-03-17 14:30:00,112,,

When receiving a CGM CSV file via Telegram:

1. Parse the CSV
2. Deduplicate by timestamp against existing /var/health/cgm.csv
3. Append new-only readings

# Dedup and append (simple approach)
cat new_readings.csv >> /var/health/cgm.csv
sort -t',' -k1,1 -u /var/health/cgm.csv -o /var/health/cgm.csv

Data Locations

• Meals: /var/health/meals.jsonl
• CGM: /var/health/cgm.csv
• Bloodwork: /var/health/bloodwork.csv (manual entry)
• Exercise: /var/health/exercise-cache.json (auto-fetched from intervals.icu)