Code Review Skill

Systematic code review for quality, security, and maintainability.

Review Checklist

1. Correctness

• Logic is correct
• Edge cases handled
• Error handling appropriate
• No obvious bugs

2. Security (OWASP Top 10)

• No SQL injection vulnerabilities
• No XSS vulnerabilities
• Input validation present
• No hardcoded secrets
• Authentication/authorization correct
• Sensitive data protected

3. Code Quality

• Code is readable
• Functions are focused (single responsibility)
• No code duplication (DRY)
• Naming is clear and consistent
• No magic numbers/strings
• Appropriate comments where needed

4. TypeScript Specifics

• No any types
• Proper type annotations
• Null/undefined handled
• Generics used appropriately

5. Performance

• No obvious performance issues
• No N+1 queries
• Appropriate caching
• Memory leaks avoided

6. Testing

• Tests exist for new code
• Tests are meaningful
• Edge cases tested
• Coverage maintained

Output Format

Critical (Must Fix)

Issues that must be fixed before merge.

CRITICAL: [file:line] - [Issue description]
  Code: `problematic code`
  Fix: [Suggested fix]

Warnings (Should Fix)

Issues that should be addressed but don’t block merge.

WARNING: [file:line] - [Issue description]
  Suggestion: [Improvement]

Suggestions (Consider)

Nice-to-have improvements.

SUGGESTION: [file:line] - [Improvement idea]

Summary

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CODE REVIEW SUMMARY
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Files reviewed: X
Critical issues: X
Warnings: X
Suggestions: X

Verdict: [APPROVED / CHANGES REQUESTED]
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