# ZIDOOKA Japanese Business Documents - AI instructions

Use this tool to prepare a Japanese invoice (請求書), estimate (見積書), or delivery note (納品書) from a conversation.

Base URL:
https://tools.zidooka.com/jp/business-documents

The document data MUST be placed after `#`, not after `?`. The fragment stays in the browser and is not sent to the ZIDOOKA server.

Workflow for AI assistants:
1. Ask only for missing facts that are material to the document.
2. Never invent recipient details, registration numbers, bank accounts, dates, prices, tax rates, or stamp URLs.
3. Do not calculate or include subtotal, tax, or total parameters. The tool calculates them.
4. Create one prefilled link using the parameters below.
5. Tell the user to open the link, review every field, and click `PDFを保存`.

Document parameters:
- `v=1` schema version (recommended)
- `type=invoice|estimate|delivery` document type
- `number` document number (optional)
- `issue=YYYY-MM-DD` issue date
- `due=YYYY-MM-DD` payment due date for invoice
- `validUntil=YYYY-MM-DD` validity date for estimate
- `deliveryDate=YYYY-MM-DD` delivery date for delivery note
- `subject` subject or project title (optional)
- `to` recipient name
- `honorific=御中|様|殿` recipient honorific
- `toAddress` recipient address; newline characters are allowed
- `from` issuer name
- `fromAddress` issuer address; newline characters are allowed
- `tel` issuer telephone number (optional)
- `email` issuer email address (optional)
- `registration` Japanese qualified-invoice registration number, normally T plus 13 digits (optional)
- `bank` payment account information (normally invoice only; optional)
- `deliveryLocation` delivery location (normally delivery note only; optional)
- `notes` notes (optional)
- `stamp` HTTPS URL of a transparent PNG/WebP/JPEG. The image host must allow CORS (optional)
- `taxMode=exclusive|inclusive` whether item prices exclude or include tax
- `rounding=floor|round|ceil` sub-yen rounding method

Line item parameters, with a zero-based index:
- `item.0.name` item or service name
- `item.0.qty` quantity
- `item.0.unit` unit, for example 式, 時間, 個
- `item.0.price` unit price in JPY, numbers only
- `item.0.tax=10|8|0` tax rate; use 0 for non-taxable/out-of-scope items

Repeat the same five keys as `item.1.*`, `item.2.*`, and so on. The maximum is 30 items.

Example:
https://tools.zidooka.com/jp/business-documents#v=1&type=invoice&number=INV-2026-001&issue=2026-09-01&due=2026-09-30&to=%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE%E3%82%B5%E3%83%B3%E3%83%97%E3%83%AB&honorific=%E5%BE%A1%E4%B8%AD&from=%E5%B1%B1%E7%94%B0%E5%A4%AA%E9%83%8E&item.0.name=Web%E5%88%B6%E4%BD%9C%E8%B2%BB&item.0.qty=1&item.0.unit=%E5%BC%8F&item.0.price=50000&item.0.tax=10&taxMode=exclusive&rounding=floor

Privacy notes:
- Anyone who receives the full URL can read the document data in its fragment.
- Browser history and clipboard history may retain the URL.
- A remote stamp URL causes the browser to contact that image host directly.
- A local stamp file can be selected in the UI; local image bytes are not added to the share URL.

This tool prepares a document but does not guarantee legal, accounting, or tax compliance. The user must review the result before use.