What problem does it solve? Freelancers in Japan must issue compliant qualified invoices (適格請求書) with registration numbers, correct consumption tax breakdowns, and consistent formatting. Manually building these PDFs each month is repetitive and error-prone, especially when recalculating subtotals, tax, and totals after quantity changes. ## Core Features & Use Cases - Invoice PDF Generation: Fills a fixed HTML template with client name, billing period, hours, rate, and issuer details, then prints to PDF via headless Chrome. - Automatic Tax Calculation: Computes subtotal, 10% consumption tax, and grand total with comma formatting, keeping all five amount fields in sync when quantities change. - Issuer Config Management: Reads issuer identity, registration number, and bank transfer details from a gitignored personal-config.json, with an example file to bootstrap setup. - Use Case: A freelance developer says "請求書出して" at month end; the Skill collects client name, hours (e.g., 74.5), and rate, then produces 20250101-1_請求書.pdf ready to send. ## Quick Start Ask the assistant to create an invoice for a client by providing the client name, target month, hours worked, and hourly rate, and it will generate the invoice PDF.
