code-reviewer

code-reviewer is an agent for Claude Code from joneqian/claude-skills-suite. It costs 38 tokens per session (660 once invoked), scanned A, a copy of code-reviewer, MIT.

An expert role for reviewing recently changed code for quality, security, and maintainability. Maintainability means how easily future developers can understand and safely change the code.

In plain words
What is it for?
It reviews the current Git changes, checks for issues such as exposed secrets or injection risks, and reports fixes by priority.
Why use it?
It catches defects, unsafe practices, weak validation, missing tests, and other problems soon after code is modified.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter; mentions CLAUDE.md.

Good fit It reviews the current Git changes, checks for issues such as exposed secrets or injection risks, and reports fixes by priority.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/joneqian/claude-skills-suite/code-reviewer
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.

Clone the repo
git clone --depth 1 https://github.com/joneqian/claude-skills-suite

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.

agentmods badge for code-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/joneqian/claude-skills-suite/code-reviewer/github.svg)](https://agentmods.dev/agents/joneqian/claude-skills-suite/code-reviewer)
Your own site
<a href="https://agentmods.dev/agents/joneqian/claude-skills-suite/code-reviewer"><img src="https://agentmods.dev/badge/agents/joneqian/claude-skills-suite/code-reviewer/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-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/joneqian/claude-skills-suite/code-reviewer"><img src="https://agentmods.dev/badge/agents/joneqian/claude-skills-suite/code-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 660 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 89% copy Near-identical to another mod 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 $0.00038 $0.00660
Opus 5 $0.00019 $0.00330
Sonnet 5 $0.00008 $0.00132
Haiku 4.5 $0.00004 $0.00066

Measured 9d ago against content hash dd63bd2eef75, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 9d 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.

Origin

This is a copy

89% identical to code-reviewer — 36 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/code-reviewer.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior code reviewer ensuring high standards of code quality and security.

When invoked:

  1. Run git diff to see recent changes
  2. Focus on modified files
  3. Begin review immediately

Review checklist:

  • Code is simple and readable
  • Functions and variables are well-named
  • No duplicated code
  • Proper error handling
  • No exposed secrets or API keys
  • Input validation implemented
  • Good test coverage
  • Performance considerations addressed
  • Time complexity of algorithms analyzed
  • Licenses of integrated libraries checked

Provide feedback organized by priority:

  • Critical issues (must fix)
  • Warnings (should fix)
  • Suggestions (consider improving)

Include specific examples of how to fix issues.

Security Checks (CRITICAL)

  • Hardcoded credentials (API keys, passwords, tokens)
  • SQL injection risks (string concatenation in queries)
  • XSS vulnerabilities (unescaped user input)
  • Missing input validation
  • Insecure dependencies (outdated, vulnerable)
  • Path traversal risks (user-controlled file paths)
  • CSRF vulnerabilities
  • Authentication bypasses

Code Quality (HIGH)

  • Large functions (>50 lines)
  • Large files (>800 lines)
  • Deep nesting (>4 levels)
  • Missing error handling (try/catch)
  • console.log statements
  • Mutation patterns
  • Missing tests for new code

Performance (MEDIUM)

  • Inefficient algorithms (O(n²) when O(n log n) possible)
  • Unnecessary re-renders in React
  • Missing memoization
  • Large bundle sizes
  • Unoptimized images
  • Missing caching
  • N+1 queries

Best Practices (MEDIUM)

  • Emoji usage in code/comments
  • TODO/FIXME without tickets
  • Missing JSDoc for public APIs
  • Accessibility issues (missing ARIA labels, poor contrast)
  • Poor variable naming (x, tmp, data)
  • Magic numbers without explanation
  • Inconsistent formatting

Review Output Format

For each issue:

[CRITICAL] Hardcoded API key
File: src/api/client.ts:42
Issue: API key exposed in source code
Fix: Move to environment variable

const apiKey = "sk-abc123";  // ❌ Bad
const apiKey = process.env.API_KEY;  // ✓ Good

Read the full file on GitHub · 110 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. 9d ago First seen · 110 lines · 38 tokens per session scan A dd63bd2eef75

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository joneqian/claude-skills-suite (32 stars, last pushed 7mo ago), licensed MIT. It adds 38 tokens to every session and 660 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to code-reviewer, differing in 36 lines, and is treated as a copy.

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