code-reviewer

code-reviewer is a skill for Claude Code, Codex from nguyenthienthanh/aura-frog. It costs 64 tokens per session (872 once invoked), scanned A, original, MIT.

A structured code-review guide that checks six areas: security, architecture, error handling, missing tests, type safety, and unnecessary complexity.

In plain words
What is it for?
Use it to review code, pull requests, or pre-merge changes and receive findings with severity, file locations, suggested fixes, and an approval decision.
Why use it?
It provides a consistent way to find risks and decide whether code is ready to merge.

Skill for Claude CodeCodex

Part of the aura-frog plugin — 43 skills, 24 commands, 15 agents, 10 hooks, 6 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/nguyenthienthanh/aura-frog/code-reviewer
Any agent
npx skills add nguyenthienthanh/aura-frog --skill code-reviewer
Clone the repo
git clone --depth 1 https://github.com/nguyenthienthanh/aura-frog

Made for: Claude Code, Codex.

Or install aura-frog, the plugin that ships this one along with the rest of its 43 skills, 24 commands, 15 agents, 10 hooks, 6 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 code-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/skills/nguyenthienthanh/aura-frog/code-reviewer.svg)](https://agentmods.dev/skills/nguyenthienthanh/aura-frog/code-reviewer)
Your own site
<a href="https://agentmods.dev/skills/nguyenthienthanh/aura-frog/code-reviewer"><img src="https://agentmods.dev/badge/skills/nguyenthienthanh/aura-frog/code-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 872 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 5.1 $0.00064 $0.00872
Opus 5 $0.00032 $0.00436
Sonnet 5 $0.00013 $0.00174
Haiku 4.5 $0.00006 $0.00087

Measured 5d ago against content hash be179bc53309, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

code-reviewer 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.

aura-frog/skills/code-reviewer/SKILL.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI-consumed reference. Optimized for Claude to read during execution. Human-readable explanation: see docs/architecture/HIERARCHICAL_PLANNING.md or docs/getting-started/ depending on topic.

Code Reviewer

Use after implementation, Phase 4, or before merge.

Process

  1. git diff --name-only main...HEAD → changed files
  2. Run 6-aspect review
  3. Report + decision

6 Aspects

aspects[6]{aspect,weight,checks}:
  Security,CRITICAL,"Secrets, injection, auth gaps, CSRF/CORS"
  Architecture,HIGH,"SRP, coupling, wrong layer, edge cases"
  Error Handling,HIGH,"Unhandled rejections, empty catch, silent failures"
  Test Gaps,HIGH,"Untested critical paths, missing edge/boundary cases"
  Type Safety,MEDIUM,"Missing types, any usage, null gaps"
  Simplification,LOW,"Complex conditionals, deep nesting — only if harms readability"

Spend 60% on Security + Architecture + Edge Cases. Don't nitpick syntax — linters handle that.

Report

[ASPECT] [SEVERITY] file:line — description → Fix: recommendation

CRITICAL = block merge | WARNING = should fix | INFO = nice to have

Decision

  • APPROVED — 0 critical, ≤3 warnings
  • CHANGES REQUESTED — any critical finding

Scoring (prevents LGTM drift)

Per-aspect breakdown required. Anchors: 9-10 production-ready, 7-8 minor issues, 5-6 needs work, <5 changes requested.

Block Merge On

Hardcoded secrets, injection, missing auth on protected routes, breaking changes without migration.


Mandatory Verification for Claims (CoVe)

Before reporting "0 critical findings" / "N% coverage" / "tests pass", run the Chain-of-Verification protocol from skills/chain-of-verification/SKILL.md. Draft → plan 3–5 verification questions → answer via tool (Read/Grep/Bash) → revise. Per rules/workflow/chain-of-verification.md this is mandatory — reviews without verified claims are not acceptable.


Read the full file on GitHub · 85 lines

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 · 85 lines · 64 tokens per session scan A be179bc53309

Subscribe to this mod's changes

code-reviewer is a skill published in the GitHub repository nguyenthienthanh/aura-frog (24 stars, last pushed yesterday), licensed MIT. It adds 64 tokens to every session and 872 once invoked, about $0.0003 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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