name: code-review
description: >-
Reviews code for quality, security, and maintainability. Use after
implementing features, completing significant work, or when user asks for code
review.
allowed-tools:
- Read
- Grep
- Glob
- Bash

Code Review

Instructions

1. Run git diff to identify changed files
2. Read modified files to understand the intent of changes
3. Review against the checklist below
4. Provide structured feedback organized by priority

Review Checklist

Security

• No exposed credentials, API keys, or secrets
• Input validation implemented where needed
• File paths are sanitized (no path traversal)
• External commands are safely constructed (no injection)

Code Quality

• Variables and functions are clearly named
• Functions have single responsibility
• No code duplication (DRY principle)
• Complex logic has explanatory comments
• Error handling is comprehensive
• No unused imports or variables
• Clean separation of concerns

Parameters

• Use enums rather than bare strings for parameters
• Do not spread "magic strings" throughout the code, use a single source of truth for parameter defaults (config.py)
• Do not use the "if (check config) then (value = from config) else (value = default)" pattern - this breaks the single source of truth rule

Python Specific

• Type hints used appropriately
• Exceptions are specific (not bare except:)
• Context managers used for resources
• f-strings preferred over .format() or %

Testing

• New functionality has test coverage
• Edge cases are tested
• Error conditions are tested
• Tests are readable and maintainable

Project Standards

• Code passes ruff linting
• No legacy wrappers or thin compatibility layers
• No "last updated" dates or copyright headers

Output Format

Organize feedback by severity:

Critical (must fix)

• Security issues
• Bugs that will cause failures
• Include specific line numbers and suggested fixes

Warnings (should fix)

• Code quality issues
• Missing error handling
• Potential edge cases
• Include rationale and improvement suggestions

Suggestions (consider)

• Style improvements
• Minor optimizations
• Include brief explanation of benefit