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.
npx agentmods add skills/thkt/dotclaude/checkoutnpx skills add thkt/dotclaude --skill checkoutgit clone --depth 1 https://github.com/thkt/dotclaudeWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00024 | $0.00428 |
| Opus 5 | $0.00012 | $0.00214 |
| Sonnet 5 | $0.00005 | $0.00086 |
| Haiku 4.5 | $0.00002 | $0.00043 |
Grade A, and why
checkout 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 2d 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.
What it actually says
/checkout - Git ブランチ作成
build の Branch 段を手で行う版。ブランチ名は同じ規則で組み立てる。
入力
$ARGUMENTS はコンテキストまたはチケット番号を含み得る。空白を除去し、空文字列なら git の変更内容のみで解析する。非空ならブランチ名のスコープやチケット ID のヒントとして扱う。
実行
git statusとgit diff HEADを並列で実行し、変更内容を読む。git diffだけではステージ済みの変更が見えない- 変更内容と
$ARGUMENTSから、ブランチ名を 1 つ決める (§ ブランチ命名) git checkout -b <決めた名前>で新しいブランチを作成する
ブランチ命名
名前の組み立てと type の判定は ${CLAUDE_SKILL_DIR}/references/branch-naming.md に従う。
エラー処理
| エラー | 扱い |
|---|---|
| 変更が無い | ブランチを作らず、変更が無いことを報告する |
| 同名のブランチが有る | 別の名前を決めて作り直す |
| git リポジトリでない | ブランチを作らず、その旨を報告する |
What ships with it
1 file 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.
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.
- 2d ago First seen · 35 lines · 24 tokens per session scan A b70849d7eb1d
checkout is a skill published in the GitHub repository thkt/dotclaude (11 stars, last pushed 3d ago), licensed MIT. It adds 24 tokens to every session and 428 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 2026-08-30.
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