Can this skill help find memory leaks?

Yes, it guides the user to implement proper disposal for controllers and subscriptions and enforces mounted checks before calling setState.

How does this skill help with Flutter jank?

It provides specific patterns for minimizing unnecessary widget rebuilds and using RepaintBoundaries to isolate expensive painting operations.

Why is using const constructors important for performance?

Const constructors allow Flutter to cache and reuse widget instances, which significantly reduces the work required during the build phase.

Does this skill provide profiling commands?

Yes, it includes standardized commands for running Flutter in profile mode and launching DevTools for real-time performance analysis.

Is it useful for optimizing large lists?

Absolutely. It promotes the use of ListView.builder and fixed item extents to ensure smooth scrolling even with thousands of items.

Flutter Performance Optimizer

Name: Flutter Performance Optimizer
Author: antoineschaller

byantoineschaller

•

Mobile Development

Optimizes Flutter applications by providing expert patterns for widget rebuilding, memory management, and frame-rate stabilization.

About

The Flutter Performance skill equips Claude with the specific knowledge needed to identify and resolve bottlenecks in Flutter applications. It focuses on implementing high-performance patterns such as const constructors, efficient widget extraction, and proper resource disposal to ensure smooth 60 FPS rendering. Whether you are debugging UI jank, optimizing long-scrolling lists, or preventing memory leaks through controller management, this skill provides the necessary checklist and implementation patterns to achieve production-grade efficiency and fast cold starts.

Key Features

Widget rebuild optimization using const constructors and extraction
Profiling workflows for DevTools and Flutter profile mode
Asset and image optimization with memory-efficient caching
Efficient list rendering strategies using ListView.builder and itemExtent
1 GitHub stars
Memory leak prevention via structured disposal and mounted checks

Use Cases

Auditing codebases for inefficient build methods and memory leaks
Optimizing list performance for applications with large data sets
Eliminating UI jank and frame drops in complex Flutter animations

About

Key Features

Widget rebuild optimization using const constructors and extraction
Profiling workflows for DevTools and Flutter profile mode
Asset and image optimization with memory-efficient caching
Efficient list rendering strategies using ListView.builder and itemExtent
1 GitHub stars
Memory leak prevention via structured disposal and mounted checks

Use Cases

Auditing codebases for inefficient build methods and memory leaks
Optimizing list performance for applications with large data sets
Eliminating UI jank and frame drops in complex Flutter animations