A set of OpenAI Codex command-line tools for reviewing code, performing adversarial reviews, handing off tasks, and monitoring usage. Codex is an AI coding agent that works in a terminal.

Reviewing code, looking for weaknesses from an attacker’s perspective, passing work to another task or agent, and checking usage.

It helps structure common coding-agent work and makes review, delegation, and usage checks part of the workflow.

How MidnightV1/Claude-Code-Feishu configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to MidnightV1/Claude-Code-Feishu. 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/MidnightV1/Claude-Code-Feishu/master/.claude/skills/codex/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/MidnightV1/Claude-Code-Feishu

Made for: Claude Code.

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/midnightv1/claude-code-feishu/codex/github.svg)](https://agentmods.dev/skills/midnightv1/claude-code-feishu/codex)

Your own site

<a href="https://agentmods.dev/skills/midnightv1/claude-code-feishu/codex"><img src="https://agentmods.dev/badge/skills/midnightv1/claude-code-feishu/codex/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/midnightv1/claude-code-feishu/codex"><img src="https://agentmods.dev/badge/skills/midnightv1/claude-code-feishu/codex.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 593 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown 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	$0.00000	$0.00593
Opus 5.5	$0.00000	$0.00237
Sonnet 5.5	$0.00000	$0.00119
Haiku 4.5	$0.00000	$0.00059

Measured 2mo ago against content hash bc00cbcf3c0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

codex scanned grade B with 1 finding 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/codex_usage.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

- Codex config: `~/.codex/config.toml`

.claude/skills/codex/SKILL.md · 70 lines

The source is not reproduced here

No licence file

Read it on GitHub

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.

scripts/codex_usage.py 6.4 KB runs code

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.

2mo ago First seen · 70 lines · 0 tokens per session scan B bc00cbcf3c0a

Subscribe to this mod's changes

codex is a skill published in the GitHub repository MidnightV1/Claude-Code-Feishu (24 stars, last pushed 6mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 593 tokens. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Building agents Code review

codex next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
codexMidnightV1/Claude-Code-Feishu	Skill	24	6mo ago	none	B	0	Claude Code
autoreviewopenclaw/clawhub	Skill	9.5k	yesterday	MIT	A	17	Claude Code, Codex
agent-teams-simplify-and-hardenLeoYeAI/openclaw-master-skills	Skill	2.2k	6d ago	MIT	A	115	Claude Code, Codex
omh-code-reviewrlaope/oh-my-hermes	Skill	5.2k	yesterday	MIT	A	48	Claude Code, Codex
revdiff-planumputun/revdiff	Skill	945	yesterday	MIT	A	84	Claude Code
explore-unknownsdzhng/skills	Skill	1.4k	2d ago	MIT	A	162	Claude Code, Codex
re0-mergeLilMGenius/paperthin	Skill	1.4k	4d ago	MIT	A	70	Claude Code

Claude-Code-Feishu: Skill for Claude Code

Borrowing it

Wrote this? Show the measurements

What it costs to keep this loaded

Grade B, and why

Reads agent configuration directoriesmediumAgent snooping

The source is not reproduced here

No licence file

What ships with it

What this file has done since we first saw it

codex compared with skills from other repositories