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invoice-openclaw-skill

@joaodriessen

# invoice-openclaw-skill

Choose how to use this skill

You do not need every option. Choose the path your AI client supports. The stable page stays the same; versioned files are immutable.

1. Native installer

This listing has no registered native installer command. Use the complete package or source fallback below, depending on what your client supports.

Do not guess an installer command or replace an existing version without reviewing the diff.

2. Complete package recommended

Download the ZIP when available. It includes SKILL.md plus the references, security notes and version metadata.

No complete ProSkills package is published for this listing yet.

3. Prompt-only

Copy the prompt above when the agent can read the stable page or when you want to adopt the workflow without installing a skill.

Need only the instruction file?

Download SKILL.md only if your client requires a single file. The complete ZIP is safer for a full installation because it preserves the references and release context.

No path installs or executes anything by itself. Your agent still needs access to the project files. Before updating, compare the installed version and review the diff.

7.4/10
Verified
Apr 29, 2026

// RATINGS

⭐GitHub Stars
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New / niche

🟢ProSkills ScoreAI Verified
7.4/10
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Not yet listed on ClawHub or SkillsMP

// README

invoice-openclaw-skill

Invoice generation skill for OpenClaw — creates Dutch ZZP invoices via Apple Numbers, exports to PDF, and drafts Apple Mail messages.

Requirements

  • macOS with Numbers and Mail installed
  • Python 3.9+
  • No additional dependencies (uses only stdlib + osascript)

Setup

No setup required. The skill bundles its own blank Numbers template (templates/blank.numbers).

The template is pre-filled with Joao's contact details, KvK, BTW-ID, and IBAN.

Usage

python3 scripts/invoice.py '<json>'

See SKILL.md for the full agent-facing interface and all options.

BTW rules (Dutch ZZP musician)

Work typeRateLegal basis
Optredens / concerten / repetities9%Verlaagd tarief culturele diensten
Muziekles aan particulieren < 210%Vrijgesteld art. 11 lid 1 letter o Wet OB
Muziekles aan particulieren ≥ 2121%Standaardtarief

Invoice storage

~/Library/Mobile Documents/com~apple~Numbers/Documents/<year>/Factuur <N> - <Project>.numbers

Invoice numbering

Auto-detected by scanning all year folders in the iCloud Numbers directory. Can be overridden with "invoice_number": <N> in the JSON input.

Updating the template

Replace templates/blank.numbers with a new Numbers file. The skill expects:

  • Sheet named Invoice
  • Table named Recipient Information with the layout described in SKILL.md
  • Table named Invoice Table with header row + 10 blank item rows + subtotaal/BTW/totaal rows

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