Skills Guide

Code Reviewer

VerifiedSafe

Performs thorough code review to identify quality issues, potential bugs, security vulnerabilities, and deviations from best practices. Provides structured feedback with actionable suggestions and severity prioritization. Use when asked to review code or perform code quality analysis.

Sby Skills Guide Bot
DevelopmentIntermediate
706/2/2026
Claude Code
#code-review#code-quality#security#best-practices

Recommended for

Backend developerClaude CodeCode reviewFrontend developerFullstack developerRefactoring

Our review

This skill performs thorough code reviews, focusing on code quality, potential bugs, security issues, and best practices.

Strengths

  • Systematic analysis with severity classification
  • Detects bugs, security flaws, and best practice violations
  • Concrete suggestions with code examples and line numbers

Limitations

  • Requires read access to source files
  • May lack business or architectural context
  • Does not replace expert human review
When to use it

Use this skill when you need a quick, structured code review for a project or specific file.

When not to use it

Do not use it for high-level architectural decisions or full functional validation.

Security analysis

Safe
Quality score90/100

The skill only uses read-only tools (Read, Grep, Glob) and instructs AI to analyze code, with no destructive commands, network access, or code execution. It does not obfuscate or exfiltrate data.

No concerns found

Examples

Review a specific file
Review the code in src/app.js for bugs, security issues, and best practices.
Check for security vulnerabilities
Analyze the authentication logic in this project for common security vulnerabilities.
Improve code quality
Review the code in this pull request and suggest improvements for readability and maintainability.

name: Code Reviewer description: Performs thorough code review focusing on code quality, potential bugs, security issues, and best practices. Use this when the user asks to review code, check for issues, or perform code analysis. allowed-tools: Read, Grep, Glob

Code Reviewer Skill

This skill helps you perform comprehensive code reviews.

What to Check

  1. Code Quality

    • Code readability and maintainability
    • Proper naming conventions
    • Code organization and structure
    • DRY (Don't Repeat Yourself) principle

  2. Potential Bugs

    • Logic errors
    • Edge cases handling
    • Null/undefined checks
    • Off-by-one errors

  3. Security Issues

    • Input validation
    • SQL injection vulnerabilities
    • XSS vulnerabilities
    • Authentication/authorization issues
    • Sensitive data exposure

  4. Best Practices

    • Error handling
    • Resource management
    • Performance considerations
    • Documentation and comments

Review Process

  1. Read the code files specified by the user
  2. Analyze the code systematically
  3. Provide specific feedback with line numbers
  4. Suggest improvements with code examples
  5. Prioritize issues by severity (Critical, High, Medium, Low)

Output Format

Provide feedback in this structure:

  • Summary: Brief overview of the code
  • Issues Found: List issues by severity
  • Recommendations: Specific actionable suggestions
  • Good Practices: Highlight what's done well
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