journal

journal is a skill for Claude Code from kazukinagata/shinkoku. It costs 135 tokens per session (5,157 once invoked), scanned A, original, MIT.

A bookkeeping tool for recording financial transactions in a general ledger, including entries imported from CSV files, receipts, or invoices. A general ledger is a record of a business’s income and expenses.

In plain words
What is it for?
Use it to import transaction data, add or edit journal entries, search records, delete entries, and initialize the ledger.
Why use it?
It removes the need to enter every transaction manually and helps keep imported records under user review before they are saved.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: names the AskUserQuestion tool.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/user/tax-2025/.

Part of the shinkoku plugin — 24 skills shipped together

Good fit Use it to import transaction data, add or edit journal entries, search records, delete entries, and initialize the ledger.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add kazukinagata/shinkoku
Claude Code
/plugin install shinkoku

Made for: Claude Code.

Or install shinkoku, the plugin that ships this one along with the rest of its 24 skills.

Wrote 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.

agentmods badge for journal

README.md
[![agentmods](https://agentmods.dev/badge/skills/kazukinagata/shinkoku/journal/github.svg)](https://agentmods.dev/skills/kazukinagata/shinkoku/journal)
Your own site
<a href="https://agentmods.dev/skills/kazukinagata/shinkoku/journal"><img src="https://agentmods.dev/badge/skills/kazukinagata/shinkoku/journal/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.

agentmods 80×15 button for journal

Your own site · 80×15
<a href="https://agentmods.dev/skills/kazukinagata/shinkoku/journal"><img src="https://agentmods.dev/badge/skills/kazukinagata/shinkoku/journal.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 135 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,157 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 18 Mar 2026
  • Snyk pass 22 Feb 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00135 $0.05157
Opus 5 $0.00068 $0.02579
Sonnet 5 $0.00027 $0.01031
Haiku 4.5 $0.00014 $0.00516

Measured 13d ago against content hash ebb4345d93a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

journal 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 13d 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.

skills/journal/SKILL.md · 446 lines

How it starts

The opening of the file, as written. The whole thing — 446 lines — stays where its author put it; the contents beside it link to each section on GitHub.

仕訳入力・帳簿管理(Journal Entry & Ledger Management)

CSV・レシート・請求書からデータを取り込み、ユーザー確認のうえ仕訳を登録するスキル。 帳簿の初期化、仕訳の検索・修正・削除も本スキルで対応する。

CLI スクリプト

本スキルでは以下の CLI スクリプトを使用する:

  • 帳簿管理: shinkoku ledger <subcommand> [args]
  • データ取り込み: shinkoku import <subcommand> [args]

すべてのコマンドは JSON を stdout に出力する。入力はコマンドライン引数または --input <json_file> で渡す。

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: CLI スクリプトの --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

パス解決の例(db_path)

config の db_path./shinkoku.db で CWD が /home/user/tax-2025/ の場合、CLI スクリプトには絶対パス /home/user/tax-2025/shinkoku.db--db-path で渡す。init, journal-add, journal-batch-add, search, journal-update, journal-delete すべてに同じ絶対パスを使用する。

進捗情報の読み込み

設定の読み込み後、引継書ファイルを読み込んで前ステップの結果を把握する。

  1. .shinkoku/progress/progress-summary.md を Read ツールで読み込む(存在する場合)
  2. 以下の引継書を Read ツールで読み込む(存在する場合):
    • .shinkoku/progress/01-setup.md
  3. 読み込んだ情報を以降のステップで活用する(ユーザーへの再質問を避ける)
  4. ファイルが存在しない場合はスキップし、ユーザーに必要情報を直接確認する

基本方針

  • CSV取り込み → ユーザー確認 → 仕訳登録 の3ステップを基本フローとする
  • 勘定科目は references/account-master.md のマスタデータに準拠する
  • 仕訳登録前に必ずユーザーに内容を確認する(自動登録しない)
  • 消費税区分(課税/非課税/不課税/対象外)を正確に設定する
  • 日付・金額・勘定科目の整合性を検証してからツールを呼び出す
  • エラー発生時はエラー内容を日本語で分かりやすく伝え、修正方法を提案する

前提条件の確認

仕訳入力を開始する前に以下を確認する:

  1. 帳簿が初期化済みか: 未初期化の場合は init コマンドで初期化を案内する
  2. 会計年度: 対象の会計年度(例: 2025)を確認する
  3. 青色申告 or 白色申告: 複式簿記(青色65万円控除)か簡易簿記かで記帳方法が変わる

ステップ1: 帳簿の初期化

初回利用時、または新しい会計年度を開始する際に帳簿を初期化する。

init コマンド

shinkoku ledger init \
  --db-path /path/to/shinkoku.db \
  --fiscal-year 2025
  • 会計年度と保存先パスをユーザーに確認してから実行する
  • 既存のデータベースがある場合は上書き警告を表示する
  • 初期化完了後、勘定科目マスタが登録されたことを確認する

ステップ2: データの取り込み

ユーザーが持つ取引データの形式に応じて適切なインポートツールを選択する。

2-1. CSV取り込み(csv コマンド)

クレジットカード明細・銀行取引明細・会計ソフトのエクスポートデータ等を読み込む。

shinkoku import csv \
  --file-path /path/to/transactions.csv

戻り値(JSON):

  • headers: 検出されたカラムヘッダ一覧
  • rows: パースされた各行のデータ
  • encoding: 自動検出されたエンコーディング
  • row_count: 行数

Read the full file on GitHub · 446 lines

Files

What ships with it

2 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.

Changes

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.

  1. 13d ago First seen · 446 lines · 135 tokens per session scan A ebb4345d93a9

Subscribe to this mod's changes

journal is a skill published in the GitHub repository kazukinagata/shinkoku (359 stars, last pushed 3d ago), licensed MIT. It adds 135 tokens to every session and 5,157 once invoked, about $0.0007 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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