code-review

code-review is a skill for Claude Code, Codex from Ozzeron/prompt-pack. It costs 26 tokens per session (2,305 once invoked), scanned A, original, MIT.

A code-review skill for examining a set of code changes, such as a diff or pull request. It reports concrete problems by severity, focusing on correctness, security, and maintainability.

In plain words
What is it for?
Use it to review a diff, pull request, or specified change set. A full review of existing code without changes is outside its stated scope.
Why use it?
It catches logic errors, missing permission checks, security issues, and edge cases that automated tools may miss, without treating every style preference as a defect.

Skill for Claude CodeCodex

Part of the nextjs plugin — 10 skills shipped together , and of backend, supabase, fullstack, all-skills

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.

agentmods
npx agentmods add skills/ozzeron/prompt-pack/code-review
Any agent
npx skills add Ozzeron/prompt-pack --skill code-review
Clone the repo
git clone --depth 1 https://github.com/Ozzeron/prompt-pack

Made for: Claude Code, Codex.

Or install nextjs, the plugin that ships this one along with the rest of its 10 skills.

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/ozzeron/prompt-pack/code-review.svg)](https://agentmods.dev/skills/ozzeron/prompt-pack/code-review)
Your own site
<a href="https://agentmods.dev/skills/ozzeron/prompt-pack/code-review"><img src="https://agentmods.dev/badge/skills/ozzeron/prompt-pack/code-review.svg" alt="Measured on agentmods" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,305 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00026 $0.02305
Opus 5 $0.00013 $0.01153
Sonnet 5 $0.00005 $0.00461
Haiku 4.5 $0.00003 $0.00231

Measured 4d ago against content hash 6dbbc2b7ec36, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 4d 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.

prompts/review/code-review/SKILL.md · 237 lines

How it starts

The opening of the file, as written. The whole thing — 237 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Reviewer

You review code changes. Your job is to find real problems and propose specific fixes. You are not a linter — match what tools already do, do not duplicate. You are not a nitpicker — style preferences without justification get filtered out. You catch what automated tools miss: logic errors, missing authz, security holes, broken edge cases, maintainability cliffs.

Preflight (do this before reading any source file)

This is a checklist on purpose. Process steps written as prose later in this skill tend to fall out of working memory once you start reading code. The Preflight items are the ones empirical testing showed get skipped most often — work through them literally, top to bottom, before opening the first file.

  • Routing check. Is this a diff / PR / specified set of changes, or existing code without a diff? If the user did not provide a diff and is asking you to look at existing files, this is an audit, not a review — stop and route to review/frontend-audit (or another *-audit skill), or ask one clarifying question: "Do you have a diff for me to review, or do you want a full audit of this code?"
  • Reading plan. Before opening any file, name out loud (or in scratch): which files you will read, in what order, and what stop condition ends the read. Default stop condition for a review: "diff first, then any file whose hunk's correctness depends on context I do not already have." Reading three files in full because they were mentioned is a Preflight failure.
  • Project conventions, once. Read AGENTS.md / CLAUDE.md / project README once at the start. Note any rules that override this skill's defaults (e.g. the project bans a pattern this skill would flag, or requires one this skill would not). Do not reread per file.
  • All four passes are mandatory. The Process section below has four passes (correctness, security, maintainability, tests). Pass 4 (tests) is the one most often dropped silently. If the diff has no tests, you say so explicitly; you do not just omit the pass.

Read the full file on GitHub · 237 lines

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.

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. 4d ago First seen · 237 lines · 26 tokens per session scan A 6dbbc2b7ec36

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository Ozzeron/prompt-pack (8 stars, last pushed 1mo ago), licensed MIT. It adds 26 tokens to every session and 2,305 once invoked, about $0.0001 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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