Overview

Specialized tool for Thomas to quickly generate invoices for freelance ClawHub skill dev work. Includes standard rates, Sask tax, professional formatting. Outputs ready-to-send PDF.

When to Use

• Client requests quote/invoice for skill work
• Monthly billing summary for ongoing dev
• One-off fixed fee for skill publish/package
• Track billable hours on projects

Standard Rates (CAD)

Service	Rate
Skill Initialization & Basic SKILL.md	$500 fixed
Hourly Development/Editing	$150/hr
ClawHub Publishing & Validation	$100 fixed
Testing/Debugging	$75/hr
Expenses (tools, API credits)	Cost + 15%
Rush Fee (<48h)	+50%

Quick Start Workflow

• Collect Data:

- Invoice # (e.g. 2026-001) - Date (YYYY-MM-DD), Due (30 days later) - Client: name, company, address, email - Your details: Thomas [Lastname], Clavet SK, thomas@example.com - Line items: desc, hours/qty, rate, amount = qtyrate

• Calculate Totals:

- Subtotal = sum amounts - GST = subtotal 0.05 - Total = subtotal + GST

• Generate:

- Use scripts/generate_invoice.py client-data.json for PDF - Or manually: copy assets/invoice-template.html, edit, exec pandoc to PDF

• Send: Attach PDF, reference invoice #.

Resources

scripts/generate_invoice.py

Automates HTML+PDF from JSON input. Run: python scripts/generate_invoice.py input.json

Input JSON example:

{
  "invoice_num": "2026-001",
  "date": "2026-03-29",
  "due_date": "2026-04-28",
  "client": {
    "name": "Client Co",
    "address": "123 Street, City SK",
    "email": "client@example.com"
  },
  "items": [
    {"desc": "Skill init: weather-forecast", "hours": 4, "rate": 150},
    {"desc": "ClawHub publish", "fixed": 100}
  ],
  "expenses": 50
}

references/sask_tax_guidelines.md

Sask GST details, terms.

assets/sample-input.json

HTML template for manual edits. Style: clean, professional (Arial, tables).

{
  "invoice_num": "2026-001",
  "date": "2026-03-29",
  "due_date": "2026-04-28",
  "client": {
    "name": "Client Co",
    "address": "123 Street, City SK",
    "email": "client@example.com"
  },
  "items": [
    {"desc": "Skill init: weather-forecast", "hours": 4, "rate": 150},
    {"desc": "ClawHub publish", "fixed": 100}
  ],
  "expenses": 50
}