Rey Invoice Generator

What This Skill Does

The Rey Invoice Generator is a specialized OpenClaw skill designed to streamline the billing process for freelancers and independent contractors. It automates the generation of professional, high-quality PDF invoices directly from structured data inputs. By abstracting the complexity of document formatting and PDF rendering, this tool ensures that your billing remains consistent, compliant, and visually professional. The skill supports advanced features such as multi-currency handling, automatic tax calculation, and customizable invoice numbering conventions to suit diverse business requirements.

Installation

To integrate this skill into your OpenClaw environment, use the CLI command: clawhub install openclaw/skills/skills/sa9saq/rey-invoice-generator.

Ensure your system has either Node.js 18+ with the Puppeteer library or the wkhtmltopdf utility installed. Puppeteer is recommended for superior visual fidelity, while wkhtmltopdf serves as a lightweight alternative for server-side environments without full browser support.

Use Cases

• Freelance Consulting: Quickly generate invoices after finishing project milestones for clients globally.
• Recurring Retainers: Manage ongoing monthly billing by leveraging sequential invoice numbering (e.g., INV-2025-005).
• International Clients: Utilize built-in currency formatting for USD, EUR, JPY, and GBP to ensure professional presentation in different markets.
• Small Business Billing: Batch process line items, apply tax rates, and generate branded payment documents for quick delivery to accounts payable departments.

Example Prompts

1. "Generate an invoice for ACME Corp for 10 hours of web development at $75/hr. Use invoice number INV-2025-010 and include a 5% tax rate. My address is 123 Dev Lane, and their address is 456 Corporate Blvd."
2. "Create a recurring invoice template for client 'DesignCo'. I need a table with three items: Logo Design, UI Assets, and Prototyping. Please format it in EUR and set the due date for 30 days from today."
3. "I have the following project data: [Paste JSON]. Please convert this into a professional PDF invoice, applying a 10% discount to the subtotal and hiding the tax row since it is tax-exempt."

Tips & Limitations

• Security: Always sanitize your input data. Since this skill processes user input into HTML, ensure that no external tracking scripts are included to prevent XSS vulnerabilities.
• Customization: While the tool provides a standard template, ensure your logo URL points to an accessible image source. If your requirements are highly custom, consider adjusting the CSS within the HTML template before PDF generation.
• Missing Dependencies: If neither Puppeteer nor wkhtmltopdf is detected, the skill will gracefully fall back to providing the rendered HTML structure, which you can save manually.