| { |
| "type": "object", |
| "title": "InvoiceSchema", |
| "description": "Structured-extraction JSON schema for invoices. Mandatory fields per the relevant national VAT act (e.g. HU VAT Act §169 for Hungarian invoices). _quotes and _confidence are anti-hallucination layers.", |
| "properties": { |
| "invoice_number": { |
| "type": ["string", "null"], |
| "description": "Invoice serial number. If incomplete, use null." |
| }, |
| "issue_date": { |
| "type": ["string", "null"], |
| "description": "Issue date in ISO 8601 format (YYYY-MM-DD). Normalize from other formats." |
| }, |
| "fulfillment_date": { |
| "type": ["string", "null"], |
| "description": "Fulfillment / service-delivery date in ISO 8601 format (YYYY-MM-DD)." |
| }, |
| "payment_due_date": { |
| "type": ["string", "null"], |
| "description": "Payment due date in ISO 8601 format (YYYY-MM-DD)." |
| }, |
| "payment_method": { |
| "type": ["string", "null"], |
| "description": "e.g. transfer, cash, card" |
| }, |
| "currency": { |
| "type": "string", |
| "description": "ISO 4217 code or well-known: USD, EUR, HUF, GBP, CHF", |
| "default": "USD" |
| }, |
| "issuer": { |
| "type": ["object", "null"], |
| "properties": { |
| "name": { "type": ["string", "null"] }, |
| "tax_id": { "type": ["string", "null"], "description": "Format depends on jurisdiction (HU: XXXXXXXX-X-XX, US: XX-XXXXXXX EIN, EU: VAT ID)" }, |
| "address": { "type": ["string", "null"] } |
| } |
| }, |
| "customer": { |
| "type": ["object", "null"], |
| "properties": { |
| "name": { "type": ["string", "null"] }, |
| "tax_id": { "type": ["string", "null"] }, |
| "address": { "type": ["string", "null"] } |
| } |
| }, |
| "line_items": { |
| "type": "array", |
| "description": "Invoice line items", |
| "items": { |
| "type": "object", |
| "properties": { |
| "item_code": { "type": ["string", "null"] }, |
| "description": { "type": ["string", "null"] }, |
| "quantity": { "type": ["number", "null"] }, |
| "unit": { "type": ["string", "null"] }, |
| "unit_price_net": { "type": ["number", "null"] }, |
| "vat_rate": { "type": ["number", "null"], "description": "As a percentage (e.g. 20)" }, |
| "total_net": { "type": ["number", "null"] }, |
| "total_vat": { "type": ["number", "null"] }, |
| "total_gross": { "type": ["number", "null"] } |
| } |
| } |
| }, |
| "total_net": { "type": ["number", "null"] }, |
| "total_vat": { "type": ["number", "null"] }, |
| "total_gross": { "type": ["number", "null"] }, |
| "_quotes": { |
| "type": "array", |
| "items": { "type": "string" }, |
| "description": "ANTI-HALLUCINATION: verbatim document quotes (at least 3 quotes for key fields)" |
| }, |
| "_confidence": { |
| "type": "object", |
| "description": "ANTI-HALLUCINATION: per-field reliability: high | medium | low" |
| }, |
| "_source": { |
| "type": "object", |
| "properties": { |
| "file_name": { "type": "string" }, |
| "page_number": { "type": ["integer", "null"] } |
| } |
| } |
| }, |
| "required": ["_quotes", "_confidence"] |
| } |
|
|
