agent-skills: Instructions file for Claude Code

CLAUDE.md

agent-skills CLAUDE.md is an instructions file for Claude Code from simota/agent-skills. It costs 1,547 tokens per session, scanned A, original, MIT.

A set of instructions for organizing and routing skills in an agent-skills repository. It describes the repository structure, shared rules, project-specific skills, and how complex requests enter through a single routing skill.

In plain words
What is it for?
Use it when maintaining the simota/agent-skills repository, creating or checking SKILL.md files, routing multi-step requests, or reviewing audit outputs.
Why use it?
It helps agents choose the right skill and follow the repository's conventions instead of handling each request inconsistently.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths.

This is simota/agent-skills's own configuration. It tells Claude Code how to work on agent-skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything agent-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to simota/agent-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/simota/agent-skills/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/simota/agent-skills

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 1,547 This file is loaded in full into every session.
When invoked 1,547 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.01547 $0.01547
Opus 5.5 $0.00619 $0.00619
Sonnet 5.5 $0.00309 $0.00309
Haiku 4.5 $0.00155 $0.00155

Measured 11d ago against content hash 95f0a8feeca0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-skills CLAUDE.md 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 11d 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.

CLAUDE.md · 40 lines

How it starts

The opening of the file, as written. The whole thing — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.

claude-skills

90のグローバルスキルと、このリポジトリ専用の3スキル(orbit / lore / darwin)で構成されるプロンプトエンジニアリングリポジトリ。 成果物はコードではなく SKILL.md ファイル群。

構造

  • 各スキル: {skill-name}/SKILL.md + オプションの reference/
  • project-localスキル: .claude/skills/(正本)+ .agents/skills/(同期ミラー)。利用可否とfallbackは _common/PROJECT_LOCAL_SKILLS.md
  • 共通プロトコル: _common/ (BOUNDARIES.md, HANDOFF.md 等)
  • テンプレート: _templates/SKILL_TEMPLATE.md
  • エージェントジャーナル: .agents/ (gitignore対象)
  • 外部スキル群: rig-* は別リポジトリ (github.com/simota/rig-agent-skills) への symlink で .gitignore 対象。独自の core/・registry/・rig-route を持つ完結した別設計であり、本リポの _common/ 契約・routing-matrix・Recipe 規約はいずれも適用されない。検査系は symlink を境界として自動除外する(_common/scripts/_corpus.py)ため、rig-* に対する指摘は出ない。両系統の統合可否は未決。
  • 監査成果物: docs/audit/ (gitignore対象) — 本 repo は監査/レビューの成果物をコミットしない。verity / abide など report-only レシピの書き込み先はここに限り、結果はコミットメッセージと会話で伝える。

ルーティング(単一入口)

  • 非自明な依頼(複数ステップ・複数領域・スキル選択が自明でないもの)は nexus を単一入口とする — 分類 → レシピ/チェーン選択 → 実行までを nexus が担う。
  • どのスキルにも該当しない依頼も nexus に投げてよい: LADDER(compass → architect → 明示的フォールバック)がカバレッジを保証する(nexus/reference/routing-matrix.md § Classify Flow (LADDER))。
  • 個別スキルの直接呼び出しは、次の3条件をすべて満たす場合に限る: (1) 担当スキルが1つに確定している (2) 成果物が1種類 (3) _common/BOUNDARIES.md の境界を1つしか跨がない。1つでも満たさなければ nexus を通す — 「たぶんこのスキル」は条件(1)を満たさない。
  • 呼び出し経路にかかわらず、完了判定は _common/OPERATIONAL.md § Completion Contract に従う(AC凍結・証拠束縛・型付き繰越・完了スイープ・status非膨張)。nexus 経由かどうかで完了の基準は変わらない。
  • 環境レベルの強制(hooks 等によるプロンプト介入)はリポジトリ範囲外のため行わない — 本宣言が単一入口の境界である。
  • 自己監査: 30日間隔の監査ルーチンが schedule 登録済み。未登録を検知した場合は _common/HARNESS_EVOLUTION.md § Evaluation Cycle の手順で再登録する。

規約

  • Conventional Commits: feat(skill-name): description
  • SKILL.md 編集時は既存の CAPABILITIES_SUMMARY コメントブロック形式を維持
  • 新規スキル/レシピ/_common/ プロトコル/ゲートの追加は Complexity Budget(_common/HARNESS_DEBT.md §3b)の4項目 failure / effect / owner / removal を宣言する。removal 空欄は却下 — 既存資産への遡及適用はしない(次に別件で編集する際に付与)
  • 実測値(スキル本数等)を散文に直書きしない — 検査が再導出できる形にする(_common/OPERATIONAL.md § Derived Numbers)。閾値の定義値はルールなので対象外
  • _common/ は全スキルに影響するため慎重に変更
  • 価値が衝突したとき(丁寧さ vs 出荷、安全 vs 使いやすさ)の優先順は _common/VALUES.md。文書同士の衝突は § Contract Precedence が別に決める
  • Git: @_common/GIT_GUIDELINES.md

Read the full file on GitHub · 40 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. 11d ago Changed · +42 tokens per session 95f0a8feeca0
  2. 12d ago Changed · +51 tokens per session 3a6d22d747c8
  3. 17d ago Changed · +4 tokens per session 1e28238c6705
  4. 1mo ago First seen · 40 lines · 1,450 tokens per session scan A 0b7f25fd6773

Subscribe to this mod's changes

agent-skills CLAUDE.md is an instructions file published in the GitHub repository simota/agent-skills (95 stars, last pushed yesterday), licensed MIT. It adds 1,547 tokens to every session, about $0.0062 per session on Opus 5.5. 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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