Identifies critical performance bottlenecks like nested loops and N+1 queries during real-time code discussions.
Performance Hint is a lightweight diagnostic skill for Claude Code designed to maintain high software efficiency by proactively flagging obvious performance pitfalls. It monitors code for O(n²) complexity, inefficient database patterns, and sequential network requests, providing immediate, brief feedback. By acting as an early-warning system rather than a heavy profiler, it ensures performance remains a top-of-mind priority during the development process and guides users toward deeper analysis when necessary.
Key Features
01Identifies N+1 query patterns and missing database pagination
02Detects algorithmic complexity issues like nested loops and inefficient sorting
03Flags sequential API calls that could be optimized with parallel execution
04Monitors for memory risks including unmanaged event listeners and timers
052 GitHub stars
06Suggests context-aware commands for deep-dive performance reviews
Use Cases
01Reviewing new code submissions for common efficiency anti-patterns
02Identifying frontend memory leaks and responsiveness bottlenecks
03Debugging slow API responses or database interactions in real-time
