A setup hub for initializing projects and configuring development tools and workflows. It covers project files, continuous integration, language servers, external tool connections, agent workflows, and related settings.

Use it for new-project setup, CI configuration, language-server or tool setup, external-service connections, agent-workflow files, and rule or memory configuration.

It brings many setup tasks into one workflow, reducing the need to remember separate procedures for each tool or project type.

How Chachamaru127/codex-harness configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to Chachamaru127/codex-harness. 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/Chachamaru127/codex-harness/main/.codex/skills/setup/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/Chachamaru127/codex-harness

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/chachamaru127/codex-harness/setup.svg)](https://agentmods.dev/skills/chachamaru127/codex-harness/setup)

Your own site

<a href="https://agentmods.dev/skills/chachamaru127/codex-harness/setup"><img src="https://agentmods.dev/badge/skills/chachamaru127/codex-harness/setup.svg" alt="Measured on agentmods" height="20"></a>

Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,083 The whole file, excluding the scripts and references it only reads on demand.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00109	$0.01083
Opus 5	$0.00055	$0.00541
Sonnet 5	$0.00022	$0.00217
Haiku 4.5	$0.00011	$0.00108

Measured 6d ago against content hash 9f02a30b0da5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

setup 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 6d 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.

.codex/skills/setup/SKILL.md · 61 lines

What it actually says

Setup Skills

プロジェクトセットアップ、ツール設定、ワークフロー構成を一元管理するスキル群です。

ルーティングテーブル

ユーザーの意図に応じて適切な reference にルーティングします。

プロジェクト初期化

機能	詳細
適応的セットアップ	See references/adaptive-setup.md
スキャフォールディング	See references/project-scaffolding.md
ワークフローファイル	See references/workflow-files.md
設定ファイル	See references/claude-settings.md
プロジェクト種別確認	See references/project-type-detection.md

ツールセットアップ

サブコマンド	詳細
CI/CD	See references/ci-setup.md
開発ツール (AST-Grep + LSP)	See references/dev-tools-setup.md
LSP	See references/lsp-setup.md
MCP サーバー	See references/mcp-setup.md
OpenCode.ai	See references/opencode-setup.md
Codex CLI	See references/codex-setup.md
Webhook	See references/webhook-setup.md
Remotion	See references/remotion-setup.md

2-Agent ワークフロー

機能	詳細
初期設定	See references/2agent-setup.md
ファイル更新	See references/2agent-updating.md
Cursor連携	See references/cursor-setup.md

メモリ・ルール

機能	詳細
Harness-Mem セットアップ	See references/harness-mem.md
ルールローカライズ	See references/localize-rules.md

実行手順

ユーザーのリクエストを分類
上記の「ルーティングテーブル」から適切な参照ファイルを読む
その内容に従って実行

Files

What ships with it

19 files 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.

6d ago First seen · 61 lines · 109 tokens per session scan A 9f02a30b0da5

Subscribe to this mod's changes

setup is a skill published in the GitHub repository Chachamaru127/codex-harness (2 stars, last pushed 6mo ago), licensed MIT. It adds 109 tokens to every session and 1,083 once invoked, about $0.0005 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 2026-08-31.

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codex-harness: Skill for Claude Code