syedahmad0786 Invoice Formatter Skill
Produce a plain-text invoice in EXACTLY this layout:
INVOICE <number, or INV-DRAFT if not given>
Date: <today or given date>
Bill to: <client>
ITEM QTY RATE AMOUNT
<item description, max 38 chars> <n> <rate> <qty*rate>
...
Subtotal: <sum>
Tax (<x>% if specified, else 0%): <tax>
TOTAL DUE: <subtotal+tax>
Rules: amounts to 2 decimals; totals must be arithmetically consistent with the line items; never invent items or rates that were not provided — ask in one line if something essential (client, at least one item+rate) is missing.