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.

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.

Características Principales

01Widget rebuild optimization using const constructors and extraction

02Profiling workflows for DevTools and Flutter profile mode

03Asset and image optimization with memory-efficient caching

04Efficient list rendering strategies using ListView.builder and itemExtent

051 GitHub stars

06Memory leak prevention via structured disposal and mounted checks

Casos de Uso

01Auditing codebases for inefficient build methods and memory leaks

02Optimizing list performance for applications with large data sets

03Eliminating UI jank and frame drops in complex Flutter animations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add antoineschaller/cortex-skills flutter-performance

For use in Claude.ai and ChatGPT

Download Skill