{"name":"tip_split","title":"Tip & Bill Split Calculator","category":"math","description":"Tip amount, grand total and per-person share for a bill.","price_usd":0.001,"input_schema":{"type":"object","properties":{"bill_amount":{"type":"number","description":"Bill amount in USD"},"tip_pct":{"type":"number","description":"Tip percent (default 18)"},"num_people":{"type":"integer","description":"Number of people splitting (default 1)"},"round_up":{"type":"boolean","description":"Round each person's share up to the cent"}},"additionalProperties":false,"required":["bill_amount"]}}