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Agent skill

Capabilities

by kazukinagata in kazukinagata/shinkoku

Display shinkoku's current capabilities, supported personas, and known limitations.

MITAuto-check passedBusiness, Finance & HR

Install Capabilities

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

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

GitHub CLI
$ gh skill install kazukinagata/shinkoku capabilities --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/capabilities .claude/skills/capabilities && 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
capabilities
GitHub stars
365
Token cost
~393 tokens
SKILL.md length
86 words
Files
2
Skills in repo
24
Repo updated
First seen
Licence
MIT

At a glance

Display shinkoku's current capabilities, supported personas, and known limitations.

  • The user asks what can you do?
  • SKILL.md covers ペルソナ対応状況, 添付書類の省略ルール（e-Tax） and Out 対応のペルソナへの案内テンプレート
  • Reaches keisan.nta.go.jp
  • Whats supported?

What it does

Capabilities is an agent skill from kazukinagata/shinkoku. Display shinkoku's current capabilities, supported personas, and known limitations. Use when the user asks "what can you do?", "what's supported?", or similar questions.

Its SKILL.md is about 390 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `README.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

  • The user asks what can you do?
  • Whats supported?
  • Similar questions

Example prompts

  • “what can you do?”
  • “s supported?”
  • “/capabilities”

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

    Hosts in commands or code, which the agent is likely to contact:

    • keisan.nta.go.jp

    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

Capabilities loads about 393 tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 86 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~393

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). 86 words, ~393 tokens.

Download SKILL.mdSave it as .claude/skills/capabilities/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
capabilities
description
Display shinkoku's current capabilities, supported personas, and known limitations. Use when the user asks "what can you do?", "what's supported?", or similar questions.

shinkoku 対応状況

shinkoku が現在対応している申告パターン、帳票種類、既知の制限事項を一覧する。

ペルソナ対応状況

レベル意味
Full計算＋確定申告書等作成コーナーへの入力代行
Out対象外（税理士への相談を案内）
ペルソナレベル備考
個人事業主（青色申告・一般用）Fullメインターゲット。帳簿→決算書→税額計算→作成コーナー入力
会社員＋副業（事業所得）Full源泉徴収票＋事業所得の税額計算→作成コーナー入力
給与所得のみ（会社員）Full還付申告・医療費控除等→作成コーナー入力
消費税課税事業者Full2割特例・簡易課税・本則課税すべて対応
ふるさと納税利用者FullCRUD + 控除計算 + 限度額推定。ワンストップ特例との注意点も案内
住宅ローン控除（初年度）Full控除額計算。初年度は添付書類が別途必要
医療費控除Full明細集計＋控除額計算
仮想通貨トレーダーFull雑所得（総合課税）として申告書に自動反映
株式投資家（分離課税）Out株式譲渡所得・配当の分離課税には対応していません
FXトレーダーOut先物取引に係る雑所得等には対応していません
不動産所得Out不動産所得用の決算書・申告に対応していません
退職所得Out退職所得控除の計算に対応していません
譲渡所得（不動産売却）Out長期/短期税率、3,000万円特別控除なし
外国税額控除Out外国税支払額の追跡・控除計算なし
農業所得・山林所得Out専用所得区分なし
非居住者Out日本居住者専用

添付書類の省略ルール（e-Tax）

e-Tax で電子申告する場合、以下の添付書類は提出を省略できる（5年間の保存義務あり）:

書類省略可否
源泉徴収票省略可（記載内容の転記が必要）
生命保険料控除証明書省略可
地震保険料控除証明書省略可
医療費の領収書省略可（明細書の添付が必要）
寄附金受領証明書省略可
社会保険料控除証明書省略可

注意: 省略できるのは e-Tax（電子申告）の場合のみ。書面提出の場合は原本の添付が必要。

Out 対応のペルソナへの案内テンプレート

shinkoku では {ペルソナ名} の確定申告には対応していません。

{理由の説明}

以下の対応をお勧めします:
- 税理士への相談
- 国税庁の確定申告書等作成コーナーの利用
  https://www.keisan.nta.go.jp/

© 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 1 other file in skills/capabilities of kazukinagata/shinkoku.

  • SKILL.md
  • README.md

Open the folder on GitHubat commit 607574d

Compare with similar skills

Capabilities 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.

Capabilities compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Capabilities this skillkazukinagata/shinkoku365—~393Automated 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 Capabilities

What does Capabilities do?

Display shinkoku's current capabilities, supported personas, and known limitations. Capabilities is an agent skill from kazukinagata/shinkoku. Display shinkoku's current capabilities, supported personas, and known limitations.

When should I use Capabilities?

Capabilities fits situations like: the user asks what can you do?; whats supported?; similar questions.

How do I install Capabilities in Claude Code?

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

How do I install Capabilities in Codex?

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

Can I use Capabilities 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 capabilities -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/capabilities, .gemini/skills/capabilities, .github/skills/capabilities and .opencode/skills/capabilities in your project.

What does Capabilities need to run?

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

Does Capabilities access the network?

SKILL.md names 1 domain. In commands or code: keisan.nta.go.jp; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Capabilities 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 Capabilities use?

Capabilities 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 Capabilities use?

About 393 tokens (SKILL.md is roughly 1.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Capabilities?

Skills that share tags, products or a category with Capabilities: 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 Capabilities?

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.