Why does the skill insist on building in Release mode?

Debug builds contain extra overhead and symbols that skew performance data. Release mode provides the most accurate measurement of real-world performance.

Does this skill require Xcode to be installed?

Yes, this skill utilizes Xcode command-line tools like xctrace and simctl, which are included with the Xcode development environment on macOS.

How do I view the recorded performance data?

The skill generates a .trace file that can be opened in the Instruments.app GUI using the 'open' command for a detailed visual analysis of the results.

Can I use this for profiling on physical iOS devices?

While the documentation emphasizes simulators, the underlying xctrace tool supports physical devices as long as you provide the correct hardware UUID.

iOS Instruments Performance CLI

Name: iOS Instruments Performance CLI
Author: daispacy

bydaispacy

Mobile Development

Optimizes iOS app performance and detects memory leaks using Xcode Instruments command-line tools.

关于

This skill empowers Claude to automate and guide the complex process of iOS performance profiling using xctrace and simctl utilities. It provides structured workflows for identifying CPU hotspots, memory leaks, and slow app launch times by enforcing critical best practices such as using device UUIDs over ambiguous names, ensuring clean installation states, and recording in Release mode. It is an essential tool for mobile developers who want to integrate performance auditing into their development cycle or troubleshoot specific UI hitches and resource bottlenecks directly from the terminal.

主要功能

Guided memory leak detection and heap allocation profiling
Workflow management for generating and opening .trace files in Instruments GUI
0 GitHub stars
Automated iOS performance recording via xctrace command-line interface
Standardized environment setup using device UUIDs and clean installs
Launch time optimization through specialized App Launch templates

使用场景

Profiling CPU usage to resolve UI hitches and identify performance bottlenecks
Analyzing and reducing app launch latency for a smoother user experience
Identifying and fixing memory leaks in an iOS application's lifecycle

关于

主要功能

Guided memory leak detection and heap allocation profiling
Workflow management for generating and opening .trace files in Instruments GUI
0 GitHub stars
Automated iOS performance recording via xctrace command-line interface
Standardized environment setup using device UUIDs and clean installs
Launch time optimization through specialized App Launch templates

使用场景

Profiling CPU usage to resolve UI hitches and identify performance bottlenecks
Analyzing and reducing app launch latency for a smoother user experience
Identifying and fixing memory leaks in an iOS application's lifecycle