release-post

A workflow that turns Git release information into a Japanese post for X, formerly known as Twitter.

In plain words
What is it for?
Use it to compare release tags, read the matching changelog entries, and generate a post with the release summary, project link, and hashtags.
Why use it?
It saves the work of finding the relevant versions and summarizing their changes in a short, consistent format.

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/kewton/commandmate/release-post
Any agent
npx skills add Kewton/CommandMate --skill release-post
Clone the repo
git clone --depth 1 https://github.com/Kewton/CommandMate

Made for: Claude Code, Codex.

Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 939 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 $0.00042 $0.00939
Opus 5 $0.00021 $0.00469
Sonnet 5 $0.00008 $0.00188
Haiku 4.5 $0.00004 $0.00094

Measured yesterday against content hash c79784fd9072, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

release-post 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 yesterday.

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.

.claude/skills/release-post/SKILL.md · 90 lines

What it actually says

リリース投稿スキル

リリース情報をX(Twitter)投稿用の文面として生成します。

使用方法

/release-post v0.2.4 v0.2.9    # v0.2.4〜v0.2.9の範囲で生成
/release-post v0.2.9            # 直前バージョンからv0.2.9までの範囲で生成
/release-post                   # 最新リリースの投稿を生成

実行手順

1. バージョン範囲の特定

$ARGUMENTS から開始バージョンと終了バージョンを特定する。

  • 引数が2つ: from-versionto-version として使用
  • 引数が1つ: そのバージョンを to-version とし、1つ前のタグを from-version とする
  • 引数なし: 最新タグを to-version、1つ前のタグを from-version とする
# タグ一覧から特定
git tag -l --sort=-v:refname

2. CHANGELOG.mdから変更内容を収集

CHANGELOG.md を読み、対象バージョン範囲のセクションからすべての変更内容を収集する。

3. 投稿文面の生成

以下のフォーマットルールに従って投稿文を生成する。

フォーマットルール
  • 文字数: 280文字以内(URLを除く)
  • 言語: 日本語
  • トーン: カジュアルだがプロフェッショナル
  • 構成:
    1. タイトル行: CommandMate v{to-version} リリース 🎉(複数バージョンの場合は v{from}〜v{to}
    2. サブタイトル: 前バージョンからの進化を簡潔に
    3. 主要変更の箇条書き(各項目に絵文字アイコン付き)
    4. プロジェクト説明の固定行
    5. GitHubリンク
    6. ハッシュタグ
絵文字の使い方

変更カテゴリに応じた絵文字を使用する:

カテゴリ 絵文字例
新機能 ✨, 🆕, 📁, 🔔, 🌐
バグ修正 🩹, 🔧, 🐛
セキュリティ 🔒, 🛡️
パフォーマンス ⚡, 🚀
UI/UX 🎨, 📱
CLI 💻, ⌨️
AI/LLM 🤖
固定フッター
Git worktree × Claude Code/Codex CLI × tmux の統合ツール
github.com/Kewton/CommandMate

#CommandMate #ClaudeCode #git #Tmux #codex
箇条書きのルール
  • 各項目は機能のユーザー向けメリットを簡潔に記載(実装詳細は不要)
  • 1項目は20文字程度を目安に
  • 最大6項目まで(多い場合は主要なものに絞る)
  • 優先順位: 新機能 > バグ修正 > リファクタリング

4. 出力

生成した投稿文をコードブロックで表示し、文字数(URL除く概算)を併記する。

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. yesterday First seen · 90 lines · 42 tokens per session scan A c79784fd9072

Subscribe to this mod's changes

release-post is a skill published in the GitHub repository Kewton/CommandMate (39 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 939 once invoked, about $0.0002 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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