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ios-instruments-performance-cli

Profile iOS app performance using Instruments command-line tools.

Updated Aug 23, 2026
Search Tags:#performance#ios#memory leaks#xcode#cpu profiling#instruments#app launch
One-click install
npx skills add https://github.com/daispacy/py-claude-marketplace --skill ios-instruments-performance-cli
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: ios-instruments-performance-cli
Source: https://github.com/daispacy/py-claude-marketplace/tree/main/py-plugin/skills/instruments
Command: npx skills add https://github.com/daispacy/py-claude-marketplace --skill ios-instruments-performance-cli

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill automates the use of Xcode Instruments command-line tools, making it easier to pinpoint and resolve iOS app performance bottlenecks, memory leaks, and slow launch times. It eliminates tedious manual GUI interaction for repeatable, scriptable analysis, saving significant debugging time.

Core Features & Use Cases

  • Automated Profiling: Runs various Instruments templates (e.g., App Launch, Time Profiler, Allocations, Leaks) via CLI, capturing detailed performance data.
  • Clean Environment Setup: Ensures accurate and consistent results by managing device UUIDs and performing clean app installations before profiling.
  • Use Case: When your iOS app is experiencing slow launch times or unexplained memory growth, activate this Skill to automatically run an "App Launch" or "Allocations" profile, generate a trace file, and provide instructions to open it in Instruments.app for detailed analysis.

Quick Start

Analyze the app launch performance of my iOS project.

Frequently Asked Questions about ios-instruments-performance-cli

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

FAQPage Schema
How do I profile iOS app launch performance with command-line tools?▼

Profile app launch performance using Instruments CLI templates like App Launch to capture startup metrics, memory allocation, and CPU usage automatically without GUI interaction, generating trace files for detailed analysis in Instruments.app.

Can I detect memory leaks in iOS apps using Instruments from the command line?▼

Yes, Instruments CLI supports Leaks and Allocations templates to automatically detect memory leaks and track memory allocations on simulators and real devices, generating trace files for forensic analysis.

What's the best way to automate iOS CPU profiling across multiple devices?▼

Use Instruments command-line tools with device UUID selection to automate Time Profiler template execution on specific simulators or real devices, capturing CPU usage bottlenecks and enabling repeatable, scriptable profiling workflows.

How do I set up clean profiling environments for accurate iOS performance measurements?▼

Instruments CLI manages device UUIDs and performs clean app installations before profiling, ensuring consistent baseline measurements and eliminating residual state that could skew performance data.

Does Instruments command-line support network activity and UI responsiveness monitoring?▼

Yes, Instruments CLI includes Network and Animation Hitches templates to profile network activity and UI frame-rate issues, complementing CPU, memory, and launch-time analysis for comprehensive performance coverage.

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