---
name: Code Review Specialist
slug: code-review-specialist
category: Quality
description: Code Review Specialist reviews code for security vulnerabilities, performance issues, and maintainability problems. Use it when someone asks for a code review, pull request evaluation, or code quality analysis.
github: "https://github.com/luongnv89/claude-howto/tree/main/03-skills/code-review-specialist"
language: Python
stars: 41000
forks: 5015
install: "npx degit https://github.com/luongnv89/claude-howto/tree/main/03-skills/code-review-specialist ~/.claude/skills/code-review-specialist"
installs_to: ~/.claude/skills/code-review-specialist
source_path: 03-skills/code-review-specialist/SKILL.md
collection_size: 25
category_size: 1354
collection_url: "https://dirskills.com/collections/luongnv89/claude-howto"
added: 2026-08-13T07:36:59.982Z
last_synced: 2026-08-13T07:36:59.982Z
canonical_url: "https://dirskills.com/skills/code-review-specialist"
---

# Code Review Specialist

Code Review Specialist reviews code for security vulnerabilities, performance issues, and maintainability problems. Use it when someone asks for a code review, pull request evaluation, or code quality analysis.

**Install:**

```bash
npx degit https://github.com/luongnv89/claude-howto/tree/main/03-skills/code-review-specialist ~/.claude/skills/code-review-specialist
```

## README

# Code Review Skill

This skill provides comprehensive code review capabilities focusing on:

1. **Security Analysis**
   - Authentication/authorization issues
   - Data exposure risks
   - Injection vulnerabilities
   - Cryptographic weaknesses
   - Sensitive data logging

2. **Performance Review**
   - Algorithm efficiency (Big O analysis)
   - Memory optimization
   - Database query optimization
   - Caching opportunities
   - Concurrency issues

3. **Code Quality**
   - SOLID principles
   - Design patterns
   - Naming conventions
   - Documentation
   - Test coverage

4. **Maintainability**
   - Code readability
   - Function size (should be < 50 lines)
   - Cyclomatic complexity
   - Dependency management
   - Type safety

## Reference Files

This skill includes supporting files that you should read when performing reviews:

- **`templates/review-checklist.md`** — Structured checklist covering security, performance, quality, and testing. Read this file and use it as a guide to ensure no category is missed during review.
- **`templates/finding-template.md`** — Standard template for documenting individual findings with severity, location, code examples, and impact analysis. Read this file and use its format when reporting issues.
- **`scripts/analyze-metrics.py`** — Python script that calculates code metrics (function count, class count, average line length, complexity score). Run this on the file under review to gather quantitative data.
- **`scripts/compare-complexity.py`** — Python script that compares cyclomatic and cognitive complexity between two versions of a file. Run this with the before and after versions when reviewing refactoring changes.

## Review Template

For each piece of code reviewed, provide:

### Summary
- Overall quality assessment (1-5)
- Key findings count
- Recommended priority areas

### Critical Issues (if any)
- **Issue**: Clear description
- **Location**: File and line number
- **Impact**: Why this matters
- **Severity**: Critical/High/Medium
- **Fix**: Code example

### Findings by Category

#### Security (if issues found)
List security vulnerabilities with examples

#### Performance (if issues found)
List performance problems with complexity analysis

#### Quality (if issues found)
List code quality issues with refactoring suggestions

#### Maintainability (if issues found)
List maintainability problems with improvements

## Version History

- v1.0.0 (2024-12-10): Initial release with security, performance, quality, and maintainability analysis

---

**Last Updated**: August 4, 2026
**Claude Code Version**: 2.1.220
**Sources**:
- https://code.claude.com/docs/en/skills
**Compatible Models**: Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Sonnet 4.6, Claude Opus 4.8, Claude Haiku 4.5