Can it help with database performance issues?

Yes, it provides strategies for adding indexes, implementing connection pooling, using batch operations, and resolving common bottlenecks like the N+1 query problem.

What kind of caching strategies does it recommend?

It covers multi-level caching strategies ranging from L1 in-memory caches to Redis (L2), database-level caching (L3), and CDN-edge caching (L4).

How does this skill handle different programming languages?

The skill uses progressive loading to fetch specific documentation for Python, Rust, JavaScript, and Go, ensuring you get the most relevant tools and patterns for your stack.

What is the core philosophy of this performance skill?

It follows a 'Measure First' approach, emphasizing that you should never optimize without data from profiling tools to ensure you are fixing actual bottlenecks rather than guessing.

Performance Optimizer

Name: Performance Optimizer
Author: jeanluciano

byjeanluciano

•

Analytics & Monitoring

Identifies and resolves software bottlenecks using language-specific profiling, caching strategies, and database query optimization.

About

This skill transforms Claude into a performance engineering specialist, providing a structured framework to measure, profile, and optimize applications. It offers tailored guidance for Python, Rust, JavaScript, and Go, helping developers move beyond guesswork by establishing performance budgets and identifying hot paths. Whether you are dealing with high memory usage, slow database queries, or inefficient concurrency patterns, this skill provides the implementation patterns and tool recommendations necessary to scale services for high load while maintaining code readability.

Key Features

Language-aware profiling for Python, Rust, Node.js, and Go
20 GitHub stars
Comprehensive database optimization and indexing strategies
Structured optimization workflow from baseline to verification
Practical advice for solving N+1 queries and memory leaks
Multi-level caching implementation patterns including Redis and CDNs

Use Cases

Optimizing memory-intensive applications to reduce infrastructure costs
Reducing API response times through profiling and caching layers
Scaling backend services to handle high-load production traffic

About

Key Features

Language-aware profiling for Python, Rust, Node.js, and Go
20 GitHub stars
Comprehensive database optimization and indexing strategies
Structured optimization workflow from baseline to verification
Practical advice for solving N+1 queries and memory leaks
Multi-level caching implementation patterns including Redis and CDNs

Use Cases

Optimizing memory-intensive applications to reduce infrastructure costs
Reducing API response times through profiling and caching layers
Scaling backend services to handle high-load production traffic