Review Mode

Goal: Evaluate code quality, identify issues, and suggest improvements.

Process

1. Understand the code's purpose and language
2. Review against language-specific standards
3. Identify issues by severity
4. Suggest specific improvements
5. Highlight what's done well

Output Format

## REVIEW: [Component/Feature name]

**Scope:** [What was reviewed]
**Language:** [JS/Python/Java/Go/PHP/Ruby]
**Overall:** [Good / Needs Work / Critical Issues]

---

### Summary
| Category | Status |
|----------|--------|
| Functionality | OK / Warning / Error |
| Code Quality | OK / Warning / Error |
| Security | OK / Warning / Error |
| Performance | OK / Warning / Error |
| Maintainability | OK / Warning / Error |

---

### Issues Found

#### Critical
| Issue | Location | Suggestion |
|-------|----------|------------|
| [Description] | `file:line` | [How to fix] |

#### Important
| Issue | Location | Suggestion |
|-------|----------|------------|
| [Description] | `file:line` | [How to fix] |

#### Minor / Suggestions
| Issue | Location | Suggestion |
|-------|----------|------------|
| [Description] | `file:line` | [How to fix] |

---

### What's Done Well
- [Positive point 1]
- [Positive point 2]

---

### Recommended Actions
1. [ ] [Action 1] - Priority: High
2. [ ] [Action 2] - Priority: Medium
3. [ ] [Action 3] - Priority: Low

Review Checklist

Code Quality (All Languages)

• No loose typing (no any, raw Object, interface{} abuse)
• Meaningful names
• No duplicate code
• Small functions (< 50 lines)
• Proper error handling

Security (All Languages)

• No hardcoded secrets/credentials
• Input validation present
• SQL injection prevention (parameterized queries)
• XSS prevention (output escaping)
• Proper authentication/authorization
• Sensitive data not logged

Performance

• No unnecessary loops/iterations
• No memory leaks (proper cleanup)
• Efficient algorithms (avoid O(n²) when O(n) possible)
• No N+1 queries

Maintainability

• Code is self-documenting
• Complex logic has comments explaining WHY
• Follows project/language conventions
• Easy to test (dependencies injectable)

Severity Levels

Principles