Can it help reduce iPhone battery drain?

Yes, it includes energy-specific diagnostics to identify anti-patterns in location tracking, network polling, and background execution that cause high power consumption.

How do I use this if my app just feels 'slow'?

You can invoke the skill with general symptoms, and it will guide you through a decision tree to determine if the issue is related to CPU, memory, or data layer bottlenecks.

How does this skill help with iOS memory leaks?

It provides diagnostic workflows for common leak patterns including timers, observers, closures, and delegates, using specialized sub-skills for both Swift and Objective-C.

Does it support Xcode Instruments?

The skill provides step-by-step guidance on using the Time Profiler, Allocations, and Power Profiler instruments to identify CPU and memory growth issues.

What is the 'energy-ref' sub-skill?

It is a reference library containing complete code examples for power-efficient APIs, including BGContinuedProcessingTask and MetricKit configuration.

iOS Performance Optimizer

Name: iOS Performance Optimizer
Author: CharlesWiltgen

byCharlesWiltgen

•

148

Mobile Development

Diagnoses and resolves performance bottlenecks, memory leaks, and battery drain issues across the Apple xOS ecosystem.

About

The ios-performance skill acts as a comprehensive router for identifying and fixing critical performance issues in iOS, iPadOS, watchOS, and tvOS applications. It provides expert guidance on memory leak detection for both Swift and Objective-C, energy consumption analysis to prevent battery drain, and deep-dive profiling using Xcode Instruments. By navigating complex issues like retain cycles, N+1 Core Data queries, and thermal throttling, this skill ensures your mobile applications remain fast, efficient, and responsive for end-users.

Key Features

Guided Xcode Instruments workflows for Time Profiler and Allocations
Energy profiling to identify battery drain and thermal pressure causes
Systematic memory leak diagnosis for Swift closures and Objective-C blocks
148 GitHub stars
Core Data optimization patterns to eliminate SQL bottlenecks
Implementation guides for efficient background tasks and MetricKit setup

Use Cases

Optimizing high energy usage symptoms like device overheating or background drain
Debugging 'Out of Memory' crashes and identifying uncalled deinit methods
Identifying CPU bottlenecks and UI lag using systematic profiling decision trees

About

Key Features

Guided Xcode Instruments workflows for Time Profiler and Allocations
Energy profiling to identify battery drain and thermal pressure causes
Systematic memory leak diagnosis for Swift closures and Objective-C blocks
148 GitHub stars
Core Data optimization patterns to eliminate SQL bottlenecks
Implementation guides for efficient background tasks and MetricKit setup

Use Cases

Optimizing high energy usage symptoms like device overheating or background drain
Debugging 'Out of Memory' crashes and identifying uncalled deinit methods
Identifying CPU bottlenecks and UI lag using systematic profiling decision trees