code-reviewer

Original：🇺🇸 English

Translated

Review code for best practices, security issues, and potential bugs. Use when reviewing code changes, checking PRs, analyzing code quality, or performing security audits.

1installs

Sourcenodnarbnitram/claude-code-extensions

Added on2026-02-15

NPX Install

npx skill4agent add nodnarbnitram/claude-code-extensions code-reviewer

SKILL.md Content

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Code Reviewer

Perform comprehensive code reviews focusing on quality, security, and maintainability.

Instructions

Read the target files using the Read tool
Search for patterns and related code using Grep
Find related files using Glob
Analyze code against the review checklist
Provide structured feedback with severity levels

Review Checklist

Code Quality

Code is simple and readable
Functions and variables are well-named
No duplicated code (DRY principle)
Appropriate comments for complex logic
Consistent code style

Security

No exposed secrets or API keys
Input validation implemented
SQL injection prevention
XSS prevention for web code
Proper authentication/authorization checks

Error Handling

Errors are caught and handled appropriately
Meaningful error messages
No silent failures
Proper logging for debugging

Performance

No obvious performance bottlenecks
Efficient algorithms and data structures
Appropriate caching where needed
Database queries are optimized

Testing

Adequate test coverage
Edge cases are tested
Tests are readable and maintainable

Output Format

Organize feedback by severity:

Critical (Must Fix)

Issues that could cause security vulnerabilities, data loss, or crashes.

Warning (Should Fix)

Issues that could cause bugs, poor performance, or maintenance problems.

Suggestion (Consider)

Improvements for readability, consistency, or best practices.

Example Feedback

markdown

### Critical
- **SQL Injection vulnerability** in `user_service.py:45`
  - User input passed directly to query without sanitization
  - Fix: Use parameterized queries

### Warning
- **Missing error handling** in `api_client.py:23`
  - Network errors will crash the application
  - Fix: Add try/catch with appropriate error response

### Suggestion
- Consider extracting the validation logic in `validators.py:78-95` into a separate function for reusability