Introduction
# Diet Tracker
This skill helps track daily diet and achieve weight loss goals with automated meal reminders.
## Trigger Conditions
User might say: - "I had [food] for lunch/dinner" - "What's my remaining calorie budget?" - "How many calories have I eaten today?" - "Log my meal" - "Check my diet progress"
Or automatically triggered by cron job for meal reminders.
## Cron Job Integration
This skill works with automated cron jobs:
- **Lunch reminder**: ~12:30 (checks if lunch logged, sends reminder if not) - **Dinner reminder**: ~18:00 (checks if dinner logged, sends reminder if not)
Cron job system event: `饮食记录检查:午餐` or `饮食记录检查:晚餐`
## User Profile (Required)
The skill reads from `USER.md`: - Daily calorie target (default: 1650 kcal) - Macronutrient targets (protein/carbs/fat) - Height, weight, age, gender, activity level (for TDEE calculation)
**Activity levels**: - Sedentary (little or no exercise) - Lightly active (light exercise 1-3 days/week) - Moderately active (moderate exercise 3-5 days/week) - Very active (hard exercise 6-7 days/week) - Extra active (very hard exercise + physical job)
## Workflow
### When User Logs a Meal:
1. **Identify food items** from user's description 2. **Fetch nutrition data** via `scripts/get_food_nutrition.py` - Searches web for calorie/protein/carbs/fat info - Falls back to `references/food_database.json` if needed 3. **Update daily log** via `scripts/update_memory.py` - Saves to `memory/YYYY-MM-DD.md` - Calculates meal totals - Updates daily running totals 4. **Report to user**: - Meal nutrition breakdown - Today's consumed / remaining calories - Predicted weight change based on deficit/surplus - Macronutrient progress (if targets set)
### When User Asks for Status:
1. Read current day's memory file 2. Calculate totals consumed 3. Report: - Remaining calorie budget - Remaining protein/carbs/fat (if targets set) - Weight change prediction
## Scripts
- `scripts/get_food_nutrition.py`: Fetches nutrition info + calculates TDEE - `scripts/update_memory.py`: Updates daily memory file with meal data - `references/food_database.json`: Fallback database of common foods
## Error Handling
### Common Issues
**Issue**: "Cannot read USER.md" or missing user data - **Cause**: User profile not configured - **Solution**: Ask user for height, weight, age, gender, activity level, and calorie target
**Issue**: Nutrition lookup fails for uncommon foods - **Cause**: Food not found in online databases - **Solution**: Ask user for approximate calorie count or use similar food from database
**Issue**: Multiple food items in one meal - **Cause**: User says "I had pizza, salad, and coke" - **Solution**: Process each item separately, sum the nutrition values
## Data Format
### Daily Memory Entry (memory/YYYY-MM-DD.md)
```markdown ## Diet Log
**Breakfast**: [food] - [X] kcal (P: [X]g, C: [X]g, F: [X]g) **Lunch**: [food] - [X] kcal (P: [X]g, C: [X]g, F: [X]g) **Dinner**: [food] - [X] kcal (P: [X]g, C: [X]g, F: [X]g)
**Daily Total**: [X] / [target] kcal **Remaining**: [X] kcal **Predicted weight change**: [-/+ X] kg ```
## Progressive Disclosure
- **Level 1 (frontmatter)**: Skill activation criteria - **Level 2 (SKILL.md)**: Full workflow instructions (this file) - **Level 3 (references/)**: Food database and nutrition guidelines