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Agent skill

Incorporation

by kazukinagata in kazukinagata/shinkoku

法人成り（個人事業主から法人への移行）に関する相談。税額比較シミュレーション、 法人形態の選択、設立手続き、役員報酬戦略、社会保険の比較を支援する。

MITAuto-check passedBusiness, Finance & HR

Install Incorporation

skills CLI
$ npx skills add kazukinagata/shinkoku --skill incorporation -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install kazukinagata/shinkoku incorporation --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/kazukinagata/shinkoku.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/incorporation .claude/skills/incorporation && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
incorporation
GitHub stars
365
Token cost
~687 tokens
SKILL.md length
160 words
Files
4 (incl. references)
Skills in repo
24
Repo updated
First seen
Licence
MIT

At a glance

法人成り（個人事業主から法人への移行）に関する相談。税額比較シミュレーション、 法人形態の選択、設立手続き、役員報酬戦略、社会保険の比較を支援する。

  • Works in 3 steps: シミュレーション積極提示 → 正確性の担保 → 回答の構造
  • Business, Finance & HR work in your project
  • SKILL.md covers 設定の読み込み（最初に実行）, 回答の基本方針, リファレンスファイル参照ガイド and 回答パターン, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Incorporation is an agent skill from kazukinagata/shinkoku. 法人成り（個人事業主から法人への移行）に関する相談。税額比較シミュレーション、 法人形態の選択、設立手続き、役員報酬戦略、社会保険の比較を支援する。 Trigger: "法人成り", "会社設立", "法人化", "株式会社にしたい", "合同会社", "法人税と所得税の比較", "役員報酬", "法人成りのタイミング", "マイクロ法人", "1人法人"

Its SKILL.md is about 690 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `references/compensation-strategy.md`, `references/corporate-forms.md` and `references/tax-simulation.md`).

It sits in Business, Finance & HR. The repository describes itself as: 確定申告自動化 AI エージェントプラグイン — 帳簿管理から e-Tax 入力代行まで. The licence is MIT.

When your agent uses it

  • Business, Finance & HR work in your project

Example prompts

  • “株式会社にしたい”
  • “法人税と所得税の比較”
  • “法人成りのタイミング”
  • “/incorporation”

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. シミュレーション積極提示
  2. 正確性の担保
  3. 回答の構造

What it can do on your machine

Read from SKILL.md and the folder at commit 607574d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Incorporation loads about 687 tokens when it runs, and up to ~11k if it reads all its reference files. Until then it costs about 48 tokens; SKILL.md has 160 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~48
When it runs · the whole SKILL.md, loaded when a task matches
~687
With references · SKILL.md plus every file in references/, read only if the agent opens them
~11k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from kazukinagata/shinkoku at commit 607574d, republished under its MIT licence (© kazukinagata). 160 words, ~687 tokens.

Download SKILL.mdSave it as .claude/skills/incorporation/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
incorporation
description
法人成り（個人事業主から法人への移行）に関する相談。税額比較シミュレーション、 法人形態の選択、設立手続き、役員報酬戦略、社会保険の比較を支援する。 Trigger: "法人成り", "会社設立", "法人化", "株式会社にしたい", "合同会社", "法人税と所得税の比較", "役員報酬", "法人成りのタイミング", "マイクロ法人", "1人法人"

法人成り（Incorporation）

個人事業主から法人への移行（法人成り）に関する包括的な知識ベース。 税額比較シミュレーション、法人形態の選択、設立手続き、役員報酬戦略を支援する。

設定の読み込み（最初に実行）

  1. shinkoku.config.yaml を Read ツールで読み込む
  2. 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
  3. 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. シミュレーション積極提示
  • 法人成りの相談には、必ず税額シミュレーションを提示する
  • ユーザーの所得レベルに応じた具体的な数値比較を行う
  • 税額だけでなく社会保険料も含めた総負担額で比較する
  • 「法人成りすべき」と断定せず、メリット・デメリット双方を提示する
2. 正確性の担保
  • 回答は必ず references/ 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: 法人税法第66条、会社法第575条）
3. 回答の構造

以下の構造で回答を組み立てる:

  1. 結論を先に: 法人成りの有利/不利の概要
  2. シミュレーション: 個人 vs 法人の税負担比較
  3. 具体的な手続き: 必要なステップと届出
  4. 注意点・落とし穴: よくある失敗パターン
  5. 免責事項: 回答の末尾に必ず disclaimer を付記

リファレンスファイル参照ガイド

質問の内容に応じて、以下のリファレンスファイルを参照する:

質問カテゴリ参照ファイル
個人 vs 法人の税額比較・損益分岐references/tax-simulation.md
株式会社 vs 合同会社・設立手続きreferences/corporate-forms.md
役員報酬の設定・社会保険戦略references/compensation-strategy.md

回答パターン

パターンA: 法人成りすべきか
  1. 現在の事業所得をヒアリングする（不足情報は質問する）
  2. references/tax-simulation.md の所得レベル別シミュレーションで該当区分を特定
  3. 個人 vs 法人の税負担を具体的な金額で比較
  4. 社会保険料の差額も含めた総合判断を提示
  5. 注意: 「すべき」と断定せず判断材料を提供する
パターンB: いつ法人成りすべきか
  1. 現在の所得と今後の見通しをヒアリングする
  2. references/tax-simulation.md の損益分岐点（事業所得800万円前後）を提示
  3. 消費税の免税リセット効果（references/tax-simulation.md）を説明
  4. references/corporate-forms.md のタイミング最適化（決算月の選択等）を案内
  5. インボイス登録済みの場合の注意点を付記
パターンC: どの法人形態にすべきか
  1. 事業の規模・業種・将来計画をヒアリングする
  2. references/corporate-forms.md の株式会社 vs 合同会社の比較表を提示
  3. 1人法人（マイクロ法人）の検討が適切かを判定
  4. 設立費用・ランニングコストの比較を具体額で示す
  5. 社会的信用・資金調達の観点からの助言を付記
パターンD: 設立手続きを教えて
  1. references/corporate-forms.md の設立手続きフローを提示
  2. 必要書類・届出先・期限を一覧で示す
  3. 個人事業の廃業手続きも案内
  4. 消費税のインボイス登録移行の注意点を付記
  5. 税理士・司法書士への依頼が推奨される場面を説明

他スキルとのクロスリファレンス

関連スキル用途参照タイミング
tax-advisor所得税の税率・控除の詳細、ライフプランニング法人成り前の個人税額計算、iDeCo・小規模企業共済との比較
invoice-systemインボイス制度・消費税の経過措置法人成り時のインボイス登録移行、2割特例の適用判定
consumption-tax消費税の計算方法・簡易課税法人の消費税負担のシミュレーション

免責事項

すべての回答の末尾に以下の免責事項を付記する:

---
この回答は一般的な税務情報の提供を目的としたものであり、個別の税務アドバイスではありません。
法人成りは税務・法務・社会保険等の多面的な判断が必要です。
具体的な意思決定にあたっては、税理士・司法書士等の専門家にご相談ください。
情報は令和7年分（2025年課税年度）の税制に基づいています。
特に免責を強調すべきケース
  • 税額シミュレーション結果に基づく法人成りの判断
  • 役員報酬の最適額の提案
  • マイクロ法人＋個人事業の二刀流スキームの提案
  • 社会保険の適用に関する判断（年金事務所への確認を推奨）
  • 税理士法第52条に抵触する可能性のある個別具体的な税務代理行為

© kazukinagata, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (references) in skills/incorporation of kazukinagata/shinkoku.

  • SKILL.md
  • references/compensation-strategy.md
  • references/corporate-forms.md
  • references/tax-simulation.md

Open the folder on GitHubat commit 607574d

Compare with similar skills

Incorporation next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Incorporation compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Incorporation this skillkazukinagata/shinkoku365—~687Automated safety check: PassMIT
Technical Analysttradermonty/claude-trading-skills3k4 repos~4.6kAutomated safety check: PassMIT
Theme Detectortradermonty/claude-trading-skills3k2 repos~4.9kAutomated safety check: PassMIT
Creating Financial ModelsChen-zexi/open-ptc-agent7293 repos~1.3kAutomated safety check: PassMIT
Stock APIzhangxiangliang/stock-api2k—~507Automated safety check: PassMIT
Itr Walakaranb192/itr-wala871—~3.6kAutomated safety check: PassMIT

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Categories

Questions about Incorporation

What does Incorporation do?

法人成り（個人事業主から法人への移行）に関する相談。税額比較シミュレーション、 法人形態の選択、設立手続き、役員報酬戦略、社会保険の比較を支援する。. Incorporation is an agent skill from kazukinagata/shinkoku.

When should I use Incorporation?

Incorporation fits situations like: business, Finance & HR work in your project.

How do I install Incorporation in Claude Code?

Run `npx skills add kazukinagata/shinkoku --skill incorporation -a claude-code`. Or copy the skill folder (skills/incorporation in kazukinagata/shinkoku) into .claude/skills/incorporation in your project. Claude Code loads it when a task matches its description.

How do I install Incorporation in Codex?

Run `npx skills add kazukinagata/shinkoku --skill incorporation -a codex`. Or copy the skill folder (skills/incorporation in kazukinagata/shinkoku) into .agents/skills/incorporation in your project. Codex loads it when a task matches its description.

Can I use Incorporation in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add kazukinagata/shinkoku --skill incorporation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/incorporation, .gemini/skills/incorporation, .github/skills/incorporation and .opencode/skills/incorporation in your project.

What does Incorporation need to run?

SKILL.md names no scripts, command-line tools or credentials: Incorporation is instructions for the agent only.

Does Incorporation access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Incorporation safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Incorporation use?

Incorporation is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Incorporation use?

About 687 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 11k tokens, read only when the agent opens those files.

What are the alternatives to Incorporation?

Skills that share tags, products or a category with Incorporation: Technical Analyst (tradermonty/claude-trading-skills, 3k stars), Theme Detector (tradermonty/claude-trading-skills, 3k stars), Creating Financial Models (Chen-zexi/open-ptc-agent, 729 stars) and Stock API (zhangxiangliang/stock-api, 2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Incorporation?

kazukinagata (a GitHub user) maintains it in kazukinagata/shinkoku, which has 365 GitHub stars. The repository holds 24 skills in this directory. The repository was last updated on September 9, 2026.

Source: kazukinagata/shinkoku on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.