fix

A quick bug-fixing workflow for problems that can be safely corrected in one to three files. It also accepts an existing issue number or a finding from an audit.

In plain words
What is it for?
Use it to inspect the project outcome, detect the build command, triage the bug, check applicable project rules, and either make the small fix or escalate it when the cause or scope is unclear.
Why use it?
It provides a defined path for small, well-understood fixes while sending larger or uncertain work to a fuller planning and build process.

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/thkt/dotclaude/fix
Any agent
npx skills add thkt/dotclaude --skill fix
Clone the repo
git clone --depth 1 https://github.com/thkt/dotclaude

Made for: Claude Code, Codex.

Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,668 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 $0.00086 $0.01668
Opus 5 $0.00043 $0.00834
Sonnet 5 $0.00017 $0.00334
Haiku 4.5 $0.00009 $0.00167

Measured 2d ago against content hash e6e0203ec00b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fix 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.

.ja/skills/fix/SKILL.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/fix - クイックバグ修正

入力

$ARGUMENTS の形が入り口を決める。対象は十分に理解できている 1〜3 ファイル規模の問題に限る。audit が返した finding をそのまま渡すときは、複数あれば severity の高い順に 1 件ずつ直す。影響が 4 ファイル以上に及ぶ場合は先に § エスカレーションの複数ファイル判定を確認する。

パターン 読み方 開始点
file:line と severity を持つ finding そのまま使う トリアージ
/^#?[0-9]+$/ gh issue view <番号> で本文を読む ビルドチェック
AskUserQuestion でバグ説明を尋ねる アウトカム参照
その他 バグ説明とみなす アウトカム参照

アウトカム参照

ビルドチェックの前に .claude/OUTCOME.md を読む。不在なら /outcome で stub を生成。バグまたは修正が outcome 状態の中にあるか確認する。範囲外なら § エスカレーション。

ビルドチェック

package.json やプロジェクト設定からビルドコマンドを検出して実行。

結果 動作
ビルドエラー Agent(subagent_type: resolver-build) 起動、END
エラーなし トリアージに進む

トリアージ

Obvious は RCA と regression test 生成の双方を省くため、誤修正リスクの低い finding に限る。

入力 条件 パス
バグ説明 単一箇所が特定 + 1〜3 行修正 + 類似パターンなし Obvious
バグ説明 断続的、複数の再現条件、または根本原因が不明 Non-obvious
finding severity low / medium かつ 1〜3 行修正 Obvious
finding severity critical / high、または修正が非自明 Non-obvious

決まりごとの参照

修正するファイルが定まったら、着手の前に python3 ${CLAUDE_SKILL_DIR}/../scribe/scripts/find_wiki_rule.py docs/wiki <バグの語> <触るファイル> --scene implement を実行する。matched のページは今回触るファイルに効く決まりごとなので全て読んでから直す。scenes のページも読む。/think を通らないこの経路にも決まりごとが届くようにするための手順で、plan が無いぶん引くのはこの 1 回きりになる。

Obvious

  1. 最小限の修正を適用する
  2. テストを実行し、他のテストに regression がないことを確認する

Non-obvious

RCA の起点は経路で変わる。下表に無い経路はバグ説明から始める。

経路 RCA の扱い
finding をそのまま渡した その file:line と summary を起点として渡す
issue 番号を渡し、本文が原因を file:line まで特定している 省く。その原因を Root cause として引き継ぎ、Pattern だけ判定する

Read the full file on GitHub · 98 lines

Files

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.

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. 2d ago First seen · 98 lines · 86 tokens per session scan A e6e0203ec00b

Subscribe to this mod's changes

fix is a skill published in the GitHub repository thkt/dotclaude (11 stars, last pushed 2d ago), licensed MIT. It adds 86 tokens to every session and 1,668 once invoked, about $0.0004 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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