code-review

code-review is a skill for Claude Code, Codex from dayfinggg/openai-codex-agent-skills. It costs 34 tokens per session (262 once invoked), scanned A, original, MIT.

A guide to reviewing code changes, branches, or pull requests against requirements and repository standards. It separates ordinary correctness and maintainability review from focused review of security-sensitive changes.

In plain words
What is it for?
Use it to review a proposed change, check its affected code and behavior, and report evidence-based findings before edits or merging.
Why use it?
It helps find missing requirements, behavior regressions, unsafe changes, and maintainability problems without silently turning a review into implementation work.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to review a proposed change, check its affected code and behavior, and report evidence-based findings before edits or merging.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dayfinggg/openai-codex-agent-skills/code-review
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.

Any agent
npx skills add dayfinggg/openai-codex-agent-skills --skill code-review
Clone the repo
git clone --depth 1 https://github.com/dayfinggg/openai-codex-agent-skills

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.

agentmods badge for code-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/dayfinggg/openai-codex-agent-skills/code-review/github.svg)](https://agentmods.dev/skills/dayfinggg/openai-codex-agent-skills/code-review)
Your own site
<a href="https://agentmods.dev/skills/dayfinggg/openai-codex-agent-skills/code-review"><img src="https://agentmods.dev/badge/skills/dayfinggg/openai-codex-agent-skills/code-review/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.

agentmods 80×15 button for code-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/dayfinggg/openai-codex-agent-skills/code-review"><img src="https://agentmods.dev/badge/skills/dayfinggg/openai-codex-agent-skills/code-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 262 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00034 $0.00262
Opus 5.5 $0.00014 $0.00105
Sonnet 5.5 $0.00007 $0.00052
Haiku 4.5 $0.00003 $0.00026

Measured today against content hash 154929883d32, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-review 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 today.

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/code-review/SKILL.md · 21 lines

What it actually says

Recover the requested review scope, verified baseline, requirements, and affected code. Preserve the distinction between a review and implementation work.

Read host integration once for the imported review procedures.

Review task Read
Check requirement coverage, scope, repository standards, and maintainability General review
Review security-sensitive changes, regressions in protection, or concrete attack paths Security-focused differential review

Use the security procedure when the user requests that analysis or the changed trust boundary makes it necessary. An ordinary low-risk review does not require a complete security audit. Keep evidence for requirement failures and security findings distinct.

The security procedure retains its methodology, adversarial analysis, reporting checklist, patterns, and assets. Use report templates as evidence checklists and follow the user's requested output format.

Perform the review directly with available tools. Confirm findings with affected code and behavior. A review request alone does not authorize edits, commits, publication, or new issue creation.

Files

What ships with it

7 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.

  1. today First seen · 21 lines · 34 tokens per session scan A 154929883d32

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository dayfinggg/openai-codex-agent-skills (8 stars, last pushed today), licensed MIT. It adds 34 tokens to every session and 262 once invoked, about $0.0001 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 2026-10-30.

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