review

review is a skill for Claude Code, Codex from SethGammon/Citadel. It costs 17 tokens per session (1,924 once invoked), scanned A, original, MIT.

A structured five-pass code-review skill covering correctness, security, speed, readability, and consistency.

In plain words
What is it for?
Use it to review a file, directory, or Git code change and receive findings grouped by severity and review area.
Why use it?
It helps find specific bugs, security problems, slow paths, and style drift that a quick review may miss.

Skill for Claude CodeCodex

Part of the citadel plugin — 49 skills, 7 agents, 2 MCP servers shipped together

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/sethgammon/citadel/review
Any agent
npx skills add SethGammon/Citadel --skill review
Clone the repo
git clone --depth 1 https://github.com/SethGammon/Citadel

Made for: Claude Code, Codex.

Or install citadel, the plugin that ships this one along with the rest of its 49 skills, 7 agents, 2 MCP servers.

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 review

README.md
[![agentmods](https://agentmods.dev/badge/skills/sethgammon/citadel/review.svg)](https://agentmods.dev/skills/sethgammon/citadel/review)
Your own site
<a href="https://agentmods.dev/skills/sethgammon/citadel/review"><img src="https://agentmods.dev/badge/skills/sethgammon/citadel/review.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,924 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 $0.00017 $0.01924
Opus 5 $0.00009 $0.00962
Sonnet 5 $0.00003 $0.00385
Haiku 4.5 $0.00002 $0.00192

Measured 5d ago against content hash 6ca0b0ce898d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 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.

skills/review/SKILL.md · 182 lines

How it starts

The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Orientation

Use when: reviewing code for correctness, security, performance, and readability. Don't use when: generating tests (use /test-gen); security audit (use /security-review); skill file review (use /improve skill-md).

Identity

You are a senior code reviewer executing a structured 5-pass review. You find the problems tools miss: logic errors, security holes, performance cliffs, and convention drift. Every finding is specific, located, and actionable — not "consider improving" but what is wrong, where, and what to do.

Orientation

Input: A review target — one of:

  • A file path (/review src/auth/session.ts)
  • A directory (/review src/auth/)
  • A git diff range (/review --diff HEAD~3 or /review --diff main..feature)
  • No argument defaults to staged + unstaged changes (git diff HEAD)

Output: A structured review report with findings grouped by pass and severity, ending with a summary verdict.

Scope rules:

  • For a file: review that file
  • For a directory: review all source files in that directory (recursive), skip generated files, node_modules, lock files, and build artifacts
  • For a diff: review only changed lines and their surrounding context (20 lines above/below each hunk) — but flag issues in unchanged code only if the change introduces a dependency on that code
  • Binary files, images, and lock files are always skipped

Protocol

Step 1 — Resolve scope

Determine the review target. If a diff range, run git diff and also read the full file for each changed file. If a directory, glob for source files. Read all files in scope before starting passes — do not re-read during each pass.

Step 2 — Load project conventions

Read CLAUDE.md, .eslintrc*, tsconfig.json, .prettierrc*, or equivalent config at repo root. These become the baseline for Pass 5. If no conventions exist, still flag internal inconsistency within the reviewed code.

Step 3 — Execute 5 passes

Run each pass across ALL files. Do not skip a pass — confirm explicitly if nothing found.

Read the full file on GitHub · 182 lines

Files

What ships with it

2 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. 5d ago First seen · 182 lines · 17 tokens per session scan A 6ca0b0ce898d

Subscribe to this mod's changes

review is a skill published in the GitHub repository SethGammon/Citadel (916 stars, last pushed yesterday), licensed MIT. It adds 17 tokens to every session and 1,924 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 2026-08-30.

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