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invoice-system

100 / 100 · Low risk

Fine to try.

By kazukinagata/shinkoku (GitHub) · coding · 371 stars · scanned at commit 607574d

This skill should be used when the user asks about the invoice system (インボイス制度), qualified invoices (適格請求書), registration numbers (登録番号), input tax credits (仕入税額控除), the 20% special measure (2割特例), the 30% special measure (3割特例), tax-exempt businesses (免税事業者), transitional measures (経過措置), small-amount exceptions (少額特例), corrected invoices (修正インボイス), or any related topics. Trigger phrases include: "インボイス", "適格請求書", "登録番号", "仕入税額控除", "2割特例", "3割特例", "免税事業者", "経過措置", "少額特例", "修正インボイス", "返還インボイス",…

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'invoice-system' ] || [ -L ~/.agents/skills/'invoice-system' ]; then echo 'A skill folder named invoice-system already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/kazukinagata/shinkoku' "$d" && git -C "$d" checkout --quiet '607574d5e5ce63898b2560e083a555d074ef258d' -- 'skills/invoice-system' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/invoice-system' ~/.agents/skills/'invoice-system' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'invoice-system' ~/.claude/skills/'invoice-system' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

DateVersionScore
2026-11-07607574d100