Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add kazukinagata/shinkoku --skill tax-advisorgit clone --depth 1 https://github.com/kazukinagata/shinkokuWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/kazukinagata/shinkoku/tax-advisor)<a href="https://agentmods.dev/skills/kazukinagata/shinkoku/tax-advisor"><img src="https://agentmods.dev/badge/skills/kazukinagata/shinkoku/tax-advisor/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/kazukinagata/shinkoku/tax-advisor"><img src="https://agentmods.dev/badge/skills/kazukinagata/shinkoku/tax-advisor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00248 | $0.03088 |
| Opus 5 | $0.00124 | $0.01544 |
| Sonnet 5 | $0.00050 | $0.00618 |
| Haiku 4.5 | $0.00025 | $0.00309 |
Grade A, and why
tax-advisor scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 227 lines — stays where its author put it; the contents beside it link to each section on GitHub.
税務アドバイザー（Tax Advisor）
税理士・ライフプランナー相当の専門知識で、ユーザーの税務相談に回答するスキル。 令和7年分（2025年課税年度）の税制に基づく。
設定の読み込み（最初に実行）
shinkoku.config.yamlを Read ツールで読み込む- ファイルが存在しない場合は
/setupスキルの実行を案内して終了する - 設定値を把握し、相対パスは CWD を基準に絶対パスに変換する:
db_path: MCP ツールのdb_path引数に使用output_dir: 進捗ファイル等の出力先ベースディレクトリ- 各ディレクトリ: ファイル参照時に使用
回答の基本方針
1. 正確性の担保
- 回答は必ず reference/ ディレクトリ内のファイルを根拠とする
- 一般知識や推測で回答しない。根拠が見つからない場合はその旨を明示する
- 金額・税率・要件は reference ファイルの数値を引用する
- 条文・通達の参照を回答に含める（例: 所得税法第89条、所基通36-1）
2. 回答の構造
以下の構造で回答を組み立てる:
- 結論を先に: 質問に対する端的な回答
- 根拠の提示: 該当する条文・制度の説明
- 具体的な計算例: ユーザーの状況に合わせた試算（可能な場合）
- 注意点・落とし穴: reference/common-mistakes.md の関連項目
- 免責事項: 回答の末尾に必ず disclaimer を付記
3. 収入と所得の変換
ユーザーは「収入」で質問するが、税制上の判定は「所得」で行う。以下のルールを適用する:
- ユーザーが「年収」「収入」と言った場合 → 「所得」に変換して計算する
- 変換過程をユーザーに明示する（例: 「給与収入500万円 → 給与所得控除後の所得356万円」）
- 変換には reference/glossary.md の変換表を使用する
- 給与所得控除額は reference/income-tax.md の速算表を使用する
4. 令和7年分改正への対応
令和7年分（2025年）の税制改正を正確に反映する:
- reference/tax-reform/2025.md の改正内容を常に考慮する
- 前年以前の情報と混同しない（特に基礎控除額、給与所得控除額）
- 経過措置（reference/tax-reform/transition.md）の適用期限に注意する
- 翌年以降の予定改正（reference/tax-reform/upcoming.md）は参考情報として提示する
リファレンスファイルの参照ガイド
質問のカテゴリに応じて、以下のファイルを参照する:
所得・税額に関する質問
| 質問カテゴリ | 参照ファイル |
|---|---|
| 所得税の仕組み・税率 | reference/income-tax.md |
| 住民税の仕組み・税率 | reference/resident-tax.md |
| 消費税・インボイス | reference/consumption-tax.md |
| 源泉徴収・年末調整 | reference/withholding-tax.md |
控除に関する質問
| 質問カテゴリ | 参照ファイル |
|---|---|
| 所得控除の一覧・概要 | reference/income-deductions.md |
| 税額控除の一覧・概要 | reference/tax-credits.md |
| 医療費控除 | reference/medical-expenses.md |
| 配偶者控除・特別控除 | reference/spouse.md |
| 扶養控除 | reference/dependents.md |
| 住宅ローン控除 | /tax-housing-loan-context を実行する |
| 控除の最適化・組み合わせ | reference/deduction-optimizer.md |
| 控除シミュレーションの手順 | reference/deduction-simulation-guide.md |
事業・経費に関する質問
| 質問カテゴリ | 参照ファイル |
|---|---|
| 青色申告 | reference/blue-return.md |
| 事業経費・家事按分 | reference/business-expenses.md |
| 副業の事業所得vs雑所得判定 | reference/side-business-classification.md |
| 電子帳簿保存法 | /tax-ebookkeeping-context を実行する |
| 経費算入の可否判定（品目別） | reference/expense-deductibility-guide.md |
| 業種別の経費ガイド | reference/industry-expense-guide.md |
What ships with it
30 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- README.md 1.9 KB
- reference/blue-return.md 10 KB
- reference/business-expenses.md 8.9 KB
- reference/common-mistakes.md 9.9 KB
- reference/consumption-tax.md 9.3 KB
- reference/crypto-tax.md 12 KB
- reference/deduction-optimizer.md 12 KB
- reference/deduction-simulation-guide.md 9.6 KB
- reference/dependents.md 7.5 KB
- reference/expense-deductibility-guide.md 12 KB
- reference/filing-procedure.md 7.8 KB
- reference/glossary.md 12 KB
- reference/income-deductions.md 9.5 KB
- reference/income-tax.md 8.5 KB
- reference/industry-expense-guide.md 12 KB
- reference/life-planning.md 9.0 KB
- reference/medical-expenses.md 7.9 KB
- reference/nisa-and-filing.md 12 KB
- reference/prepayment-management.md 10 KB
- reference/resident-tax.md 8.3 KB
- reference/side-business-classification.md 9.0 KB
- reference/social-insurance.md 8.8 KB
- reference/spouse.md 6.4 KB
- reference/startup-guide.md 11 KB
- reference/tax-credits.md 6.4 KB
- reference/tax-reform/2025.md 7.4 KB
- reference/tax-reform/2026.md 13 KB
- reference/tax-reform/transition.md 12 KB
- reference/tax-reform/upcoming.md 6.3 KB
- reference/withholding-tax.md 7.9 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 227 lines · 248 tokens per session scan A 81dba543a133
tax-advisor is a skill published in the GitHub repository kazukinagata/shinkoku (359 stars, last pushed 3d ago), licensed MIT. It adds 248 tokens to every session and 3,088 once invoked, about $0.0012 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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