Bill Processing

Bill Processing Skill

This skill extracts structured data from restaurant bills and receipts.

When to Use

Activate this skill when:

• User uploads an image of a bill or receipt
• User mentions processing a bill/receipt
• User asks to extract data from a restaurant bill

Output Format

Return ONLY a JSON object in this exact format:

{
  "people": [],
  "items": [
    {"id": 0, "name": "Item Name", "price": 0.00, "personQuantities": {}}
  ],
  "nextPersonId": 0,
  "nextItemId": 1,
  "tax": 0,
  "tip": 0,
  "isTransposed": false
}

Field Specifications

• items: Array of menu items with sequential IDs starting from 0
  • id: Sequential number (0, 1, 2, ...)
  • name: Exact item name from bill
  • price: Item price as decimal number
  • personQuantities: Empty object {}
• people: Always empty array []
• nextPersonId: Always 0
• nextItemId: Number of items extracted
• tax: Tax percentage (calculate: (tax_amount / subtotal) × 100)
• tip: Tip percentage (calculate: (tip_amount / subtotal) × 100)
• isTransposed: Always false

Extraction Rules

1. Items: Extract ALL food and drink items with exact names
2. Prices: Use exact decimal values (e.g., 12.99, not "~13")
3. Tax: If only amount shown, calculate percentage from subtotal
4. Tip: If only amount shown, calculate percentage from subtotal
5. Service charges: Treat as additional items if not tip/tax
6. Duplicates: Create separate entries for each occurrence
7. Output: Return ONLY JSON, no markdown code blocks, no explanations

Example

Input: Image of bill with "Burger $12.99, Fries $4.50, Tax $1.57, Tip $3.52"

Calculation:

• Subtotal: $17.49
• Tax %: (1.57 / 17.49) × 100 ≈ 9%
• Tip %: (3.52 / 17.49) × 100 ≈ 20%

Output:

{
  "people": [],
  "items": [
    {"id": 0, "name": "Burger", "price": 12.99, "personQuantities": {}},
    {"id": 1, "name": "Fries", "price": 4.50, "personQuantities": {}}
  ],
  "nextPersonId": 0,
  "nextItemId": 2,
  "tax": 9,
  "tip": 20,
  "isTransposed": false
}