description: Analyze code for performance issues and suggest optimizations

Code Optimization

Review the provided code for the following issues in order of priority:

Performance bottlenecks - identify O(n²) operations, inefficient loops
Memory leaks - find unreleased resources, circular references
Algorithm improvements - suggest better algorithms or data structures
Caching opportunities - identify repeated computations
Concurrency issues - find race conditions or threading problems

Format your response with: - Issue severity (Critical/High/Medium/Low) - Location in code - Explanation - Recommended fix with code example

Last Updated: August 4, 2026 Claude Code Version: 2.1.220 Sources: - https://code.claude.com/docs/en/commands Compatible Models: Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Sonnet 4.6, Claude Opus 4.8, Claude Haiku 4.5