flutter-performance

Analyze Flutter app rebuilds, memory usage, and rendering paths to identify performance bottlenecks.

1|Updated Mar 19, 2026
One-click install
npx skills add https://github.com/wildbitca/ai-resources --skill flutter-performance-wildbitca
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: flutter-performance
Source: https://github.com/wildbitca/ai-resources/tree/main/skills/flutter-performance
Command: npx skills add https://github.com/wildbitca/ai-resources --skill flutter-performance-wildbitca

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Flutter apps can suffer from unnecessary rebuilds, memory bloat, and jank, making UIs feel sluggish and power-hungry.

Core Features & Use Cases

  • Rebuild optimization: encourage const widgets, selective rebuilds, and using buildWhen-like guards.
  • Rendering efficiency: use RepaintBoundary, avoid heavy work in build, and efficient image handling.
  • Diagnosis and patterns: identify common anti-patterns and provide actionable guidelines for performance profiling.

Quick Start

Audit a Flutter app for rebuilds and rendering issues and implement the recommended optimizations.

Frequently Asked Questions about flutter-performance

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

FAQPage Schema
How do I fix Flutter app jank and maintain 60fps rendering?

Fix Flutter jank by analyzing rebuilds, memory usage, and rendering paths to identify bottlenecks. Apply const widgets, RepaintBoundary, and ListView optimization to reduce memory churn and maintain 60fps UI responsiveness.

Why does my Flutter app have unnecessary widget rebuilds?

Unnecessary Flutter rebuilds occur when widgets lack const constructors or selective rebuild guards. Optimize by using const widgets, buildWhen-like guards, and avoiding heavy work in build methods to reduce memory churn.

What is the best way to reduce memory churn in a Flutter mobile project?

Reduce memory churn in Flutter by optimizing rendering paths with RepaintBoundary, efficient image handling, and isolate-based work for heavy tasks. This prevents memory bloat and keeps mobile UIs responsive.

When should I use RepaintBoundary in Flutter rendering?

Use RepaintBoundary in Flutter when isolating complex rendering areas to prevent unnecessary repaints. It improves rendering efficiency by containing repaints to specific boundaries, avoiding heavy work in build methods.

Does ListView optimization require isolate-based work in Flutter?

ListView optimization in Flutter does not always require isolate-based work. Isolates are needed only for heavy background tasks, while standard optimization relies on efficient image handling and preventing unnecessary rebuilds.

How do I profile Flutter performance anti-patterns during development?

Profile Flutter performance by auditing the app for common anti-patterns in rebuilds and rendering. Identify bottlenecks in memory usage and rendering paths, then implement actionable guidelines for performance profiling.