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JubaKitiashvili
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erne-perf

Diagnose and optimize React Native and Expo app performance bottlenecks.

41|4|Updated Mar 10, 2026
Search Tags:#performance#optimization#profiling#diagnostics#react-native#expo
One-click install
npx skills add https://github.com/JubaKitiashvili/everything-react-native-expo --skill erne-perf
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: erne-perf
Source: https://github.com/JubaKitiashvili/everything-react-native-expo/tree/main/.claude/skills/erne-perf
Command: npx skills add https://github.com/JubaKitiashvili/everything-react-native-expo --skill erne-perf

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Performance profiling helps teams identify and fix bottlenecks in React Native and Expo apps by analyzing render work, startup time, memory use, and animation performance with focused guidance from the performance-profiler agent.

Core Features & Use Cases

  • Diagnose rendering bottlenecks, TTI delays, and memory leaks using structured checks and recommended fixes.
  • Generate actionable optimization plans tailored to common RN/Expo configurations and workflows.
  • Produce clear performance reports that highlight issues, impact, and concrete improvements to implement.

Quick Start

Execute /erne-perf to start profiling with the performance-profiler agent.

Frequently Asked Questions about erne-perf

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I diagnose rendering bottlenecks and memory leaks in a React Native app?▼

You can diagnose React Native rendering bottlenecks and memory leaks using the performance-profiler agent to run structured checks. It analyzes render work, startup time, and memory use to generate a report with actionable fixes.

What is the best way to improve startup time and TTI delays in Expo applications?▼

The best way to improve Expo startup time and TTI delays is to profile the app to identify performance bottlenecks. The agent provides tailored optimization plans targeting common Expo configurations and workflows.

Can I use this performance profiling approach to reduce bundle size in React Native?▼

Yes, performance profiling in React Native applies to bundle size reduction alongside rendering, startup time, memory, and animation improvements. The agent produces clear reports highlighting issues and concrete improvements to implement.

Does the performance-profiler agent work with standard React Native and Expo setups?▼

Yes, the performance-profiler agent works across common React Native and Expo setups. It provides structured diagnostics and workflow-ready guidance tailored to standard configurations without requiring extra dependencies.

How do I start profiling animations and memory usage in my React Native project?▼

To start profiling animations and memory usage in your React Native project, execute the /erne-perf command. This initiates the performance-profiler agent to analyze your app and output actionable optimization plans.

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