# Invoice Total Fixer

> Use when fixing invoice total calculations in the sandbox quickstart repository.

- Skill: `openai/invoice-total-fixer` (Agent Skill)
- Install (CLI): `npx skillmds@latest add openai/invoice-total-fixer`
- Raw SKILL.md: https://api.skillmd.com/api/skills/openai/invoice-total-fixer/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Finance & Business
- Author: OpenAI (https://skillmd.com/u/openai)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/openai/invoice-total-fixer

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# Invoice Total Fixer

Inspect the implementation and test before editing. The total should apply tax as a percentage of the subtotal, so the expected formula is `subtotal + subtotal * taxRate`.

After editing, run `npm test` from the repository directory and report the command result.