invoice-openclaw-skill

# 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 ```bash python3 scripts/invoice.py '<json>' ``` See `SKILL.md` for the full agent-facing interface and all options. ## BTW rules (Dutch ZZP musician) | Work type | Rate | Legal basis | |-----------|------|-------------| | Optredens / concerten / repetities | 9% | Verlaagd tarief culturele diensten | | Muziekles aan particulieren < 21 | 0% | Vrijgesteld art. 11 lid 1 letter o Wet OB | | Muziekles aan particulieren ≥ 21 | 21% | 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