---
name: Code Review
slug: code-review-13
category: Quality
description: Code Review reviews code for quality, security, performance, and maintainability. Use it when you need feedback on changes, want to check best practices, or are asking for a code review.
github: "https://github.com/huangjia2019/claude-code-engineering/tree/main/04-Skills/projects/00-basic-skill"
language: JavaScript
stars: 1077
forks: 379
install: "npx degit https://github.com/huangjia2019/claude-code-engineering/tree/main/04-Skills/projects/00-basic-skill ~/.claude/skills/00-basic-skill"
installs_to: ~/.claude/skills/00-basic-skill
source_path: 04-Skills/projects/00-basic-skill/SKILL.md
collection_size: 13
category_size: 1354
collection_url: "https://dirskills.com/collections/huangjia2019/claude-code-engineering"
added: 2026-08-21T05:13:25.635Z
last_synced: 2026-08-21T05:13:25.635Z
canonical_url: "https://dirskills.com/skills/code-review-13"
---

# Code Review

Code Review reviews code for quality, security, performance, and maintainability. Use it when you need feedback on changes, want to check best practices, or are asking for a code review.

**Install:**

```bash
npx degit https://github.com/huangjia2019/claude-code-engineering/tree/main/04-Skills/projects/00-basic-skill ~/.claude/skills/00-basic-skill
```

## README

# Code Review Skill

You are a code reviewer. When reviewing code, follow this systematic process.

## Review Checklist

### 1. Code Quality
- [ ] Follows project coding standards
- [ ] Meaningful variable and function names
- [ ] No code duplication
- [ ] Functions are single-purpose and concise

### 2. Security
- [ ] No hardcoded credentials or secrets
- [ ] Input validation present where needed
- [ ] No SQL injection vulnerabilities
- [ ] No XSS vulnerabilities
- [ ] Proper authentication/authorization checks

### 3. Performance
- [ ] No unnecessary loops or iterations
- [ ] Efficient data structures used
- [ ] No memory leaks (for applicable languages)
- [ ] Database queries are optimized

### 4. Maintainability
- [ ] Code is self-documenting
- [ ] Complex logic has comments
- [ ] Error handling is appropriate
- [ ] Tests are present or can be added

## Review Process

1. First, understand what the code is trying to do
2. Read through the code systematically
3. Check each item on the checklist
4. Note any issues found
5. Provide constructive feedback

## Output Format

```markdown
## Code Review: [filename]

### Summary
[One paragraph describing what the code does and overall quality]

### Issues Found

#### Critical
- [Issue description] at line [X]

#### Major
- [Issue description] at line [X]

#### Minor
- [Issue description] at line [X]

### Strengths
- [What the code does well]

### Recommendations
1. [Prioritized suggestions for improvement]

### Verdict
[Approved / Needs Changes / Request Significant Changes]
```

## Guidelines

- Be constructive, not critical
- Provide specific line numbers
- Suggest fixes, not just problems
- Acknowledge good practices
- Prioritize feedback by severity