init-typescript-project

init-typescript-project is a skill for Claude Code, Codex from tk0miya/skills. It costs 21 tokens per session (4,541 once invoked), scanned A, original, Apache-2.0.

A setup guide for starting a TypeScript project in the current directory. TypeScript is JavaScript with optional type checking; the guide checks existing project files before adding setup.

In plain words
What is it for?
Checking Node.js and GitHub CLI access, creating or preserving package and Biome configuration, and preparing the repository.
Why use it?
It avoids replacing existing configuration and identifies which parts of the project setup are already complete.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/tk0miya/skills/init-typescript-project
Any agent
npx skills add tk0miya/skills --skill init-typescript-project
Clone the repo
git clone --depth 1 https://github.com/tk0miya/skills

Made for: Claude Code, Codex.

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 init-typescript-project

README.md
[![agentmods](https://agentmods.dev/badge/skills/tk0miya/skills/init-typescript-project.svg)](https://agentmods.dev/skills/tk0miya/skills/init-typescript-project)
Your own site
<a href="https://agentmods.dev/skills/tk0miya/skills/init-typescript-project"><img src="https://agentmods.dev/badge/skills/tk0miya/skills/init-typescript-project.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,541 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00021 $0.04541
Opus 5 $0.00010 $0.02270
Sonnet 5 $0.00004 $0.00908
Haiku 4.5 $0.00002 $0.00454

Measured 3d ago against content hash 2c49cf285109, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

init-typescript-project 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 3d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (add-required-checks.sh, hooks/pre-commit-check.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/init-typescript-project/SKILL.md · 323 lines

How it starts

The opening of the file, as written. The whole thing — 323 lines — stays where its author put it; the contents beside it link to each section on GitHub.

init-typescript-project

TypeScript プロジェクトの初期セットアップを自動化するスキルです。

事前チェック(自動実行)

実行環境

以下を実行し、gh が認証済みか、node が利用可能かをチェックする。

gh auth status
node --version

カレントディレクトリの状況

このスキルはカレントディレクトリをプロジェクトディレクトリとして扱う。ディレクトリの作成も npm init による雛形生成も行わない(新規プロジェクトなら、先にユーザーが空のディレクトリを作ってそこでこの スキルを呼ぶ)。初期セットアップの一部が済んでいることがあるので、カレントディレクトリを調べてどこまで 済んでいるかを判定する。

ls -1d .git package.json biome.json biome.jsonc 2>/dev/null
[[ -e .git ]] && git remote get-url origin 2>/dev/null
[[ -e .git ]] && git rev-parse --verify -q HEAD && git status --porcelain
判定 条件 影響
package.json 作成済み package.json がある Phase 1 の npm init -y をスキップし、既存の内容は上書きしない
Biome 設定作成済み biome.jsonbiome.jsonc がある Phase 2 の npx biome init --jsonc をスキップ(biome.json なら biome.jsonc にリネーム)
リポジトリ作成済み カレントディレクトリに .git があり、origin がある Phase 3 の gh repo create をスキップする

origin を見る前にカレントディレクトリの .git を確認するのは、別のリポジトリの配下に作った ディレクトリで実行したときに、親リポジトリの origin を拾って「作成済み」と誤判定しないため (worktree や submodule では .git がファイルなので、ディレクトリかどうかでは判定しない)。

コミットが 1 つ以上あるリポジトリで git status --porcelain に未コミットの変更があれば、Phase 3 の コミットにユーザーの作業を巻き込むことになるので、この時点でユーザーに伝えて、先に片付けるか承知の うえで進めるかを確認する。履歴がまだ無い場合(手動で npm init を実行した直後など)は、雛形が まるごと未コミットなのが当たり前なので確認しない。

想定している典型シナリオは次の 4 つ。

  • 作ったばかりの空のディレクトリでこのスキルを実行する(package.json なし・履歴なし・ リポジトリ未作成)
  • GitHub で作ったリポジトリを clone したディレクトリでこのスキルを実行する(履歴あり・ リポジトリ作成済み)
  • 手動で npm init を実行し、そのディレクトリでこのスキルを実行する(package.json あり・ 履歴なし・リポジトリ未作成)
  • ドキュメントだけ、あるいは他言語で書かれた既存プロジェクトに TypeScript を足す(履歴あり・ リポジトリ作成済み。TypeScript 以外のファイルが既にある)

プロジェクト名は package.jsonnameorigin のリポジトリ名 → カレントディレクトリ名の順で 決める。判定はディレクトリの中身から決まるもので、名前もカレントディレクトリがプロジェクト ディレクトリである以上そこから決まるので、確認は求めない。判定結果と決定したプロジェクト名は Phase 0 の質問と一緒に伝える(何をスキップして何の名前で進むかが分かるように)。

Phase 0: ユーザーへの確認(未確定の項目だけを一度に質問する)

事前チェックで確定しなかった項目だけをまとめて質問し、回答を得てから次のフェーズに進む。

項目 質問する条件
対象 Node.js バージョン(例: 24) 常時
GitHub リポジトリを今すぐ作成するか(yes / no)。yes の場合は visibility(public / private) リポジトリ作成済みでない場合

Read the full file on GitHub · 323 lines

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. 3d ago First seen · 323 lines · 21 tokens per session scan A 2c49cf285109

Subscribe to this mod's changes

init-typescript-project is a skill published in the GitHub repository tk0miya/skills (2 stars, last pushed 3d ago), licensed Apache-2.0. It adds 21 tokens to every session and 4,541 once invoked, about $0.0001 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 2026-08-31.

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