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 skills add mturac/everything-openai-codex --skill agent-evalgit clone --depth 1 https://github.com/mturac/everything-openai-codexWrote 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.
[](https://agentmods.dev/skills/mturac/everything-openai-codex/agent-eval)<a href="https://agentmods.dev/skills/mturac/everything-openai-codex/agent-eval"><img src="https://agentmods.dev/badge/skills/mturac/everything-openai-codex/agent-eval/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/mturac/everything-openai-codex/agent-eval"><img src="https://agentmods.dev/badge/skills/mturac/everything-openai-codex/agent-eval.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00065 | $0.01516 |
| Opus 5 | $0.00032 | $0.00758 |
| Sonnet 5 | $0.00013 | $0.00303 |
| Haiku 4.5 | $0.00006 | $0.00152 |
Grade A, and why
agent-eval 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.
エージェント評価スキル
再現可能なタスクでコーディングエージェントをヘッドツーヘッドで比較するための軽量 CLI ツールです。「どのコーディングエージェントが最適か?」という比較はすべて感覚に頼りがちです — このツールはそれを体系化します。
起動タイミング
- 自分のコードベースでコーディングエージェント(OpenAI Codex、Aider、Codex など)を比較する
- 新しいツールやモデルを採用する前にエージェントパフォーマンスを測定する
- エージェントがモデルやツールを更新した際にリグレッションチェックを実行する
- チームにデータに基づいたエージェント選択の判断を提供する
インストール
注意: agent-eval はソースを確認した後、リポジトリからインストールしてください。
コアコンセプト
YAML タスク定義
タスクを宣言的に定義します。各タスクは何をするか、どのファイルを操作するか、成功をどう判定するかを指定します:
name: add-retry-logic
description: Add exponential backoff retry to the HTTP client
repo: ./my-project
files:
- src/http_client.py
prompt: |
Add retry logic with exponential backoff to all HTTP requests.
Max 3 retries. Initial delay 1s, max delay 30s.
judge:
- type: pytest
command: pytest tests/test_http_client.py -v
- type: grep
pattern: "exponential_backoff|retry"
files: src/http_client.py
commit: "abc1234" # 再現性のために特定コミットに固定
Git ワークツリー分離
各エージェント実行は独自の git ワークツリーを取得します — Docker 不要。これにより再現性の分離が提供され、エージェントが互いに干渉したりベースリポジトリを破壊したりしません。
収集メトリクス
| メトリクス | 測定内容 |
|---|---|
| 合格率 | エージェントはジャッジをパスするコードを生成できたか? |
| コスト | タスクあたりの API 費用(利用可能な場合) |
| 時間 | 完了までのウォールクロック秒数 |
| 一貫性 | 繰り返し実行での合格率(例:3/3 = 100%) |
ワークフロー
1. タスクの定義
タスクごとに 1 つの YAML ファイルを持つ tasks/ ディレクトリを作成します:
mkdir tasks
# タスク定義を作成(上記のテンプレートを参照)
2. エージェントの実行
タスクに対してエージェントを実行します:
agent-eval run --task tasks/add-retry-logic.yaml --agent codex --agent aider --runs 3
各実行:
- 指定されたコミットから新しい git ワークツリーを作成
- エージェントにプロンプトを渡す
- ジャッジ基準を実行
- 合格・不合格、コスト、時間を記録
3. 結果の比較
比較レポートを生成します:
agent-eval report --format table
Task: add-retry-logic (3 runs each)
┌──────────────┬───────────┬────────┬────────┬─────────────┐
│ Agent │ Pass Rate │ Cost │ Time │ Consistency │
├──────────────┼───────────┼────────┼────────┼─────────────┤
│ codex │ 3/3 │ $0.12 │ 45s │ 100% │
│ aider │ 2/3 │ $0.08 │ 38s │ 67% │
└──────────────┴───────────┴────────┴────────┴─────────────┘
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.
- 5d ago First seen · 146 lines · 65 tokens per session scan A 908c2b320bcb
agent-eval is a skill published in the GitHub repository mturac/everything-openai-codex (89 stars, last pushed 15d ago), licensed MIT. It adds 65 tokens to every session and 1,516 once invoked, about $0.0003 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 2026-09-03.
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