swiftui-performance-audit

Diagnose SwiftUI performance issues by reviewing code and profiling with Instruments.

42|3|Updated Dec 29, 2025
One-click install
npx skills add https://github.com/sorty-organizer/Sorty --skill swiftui-performance-audit-sorty-organizer
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: swiftui-performance-audit
Source: https://github.com/sorty-organizer/Sorty/tree/main/.agents/skills/swiftui-performance-audit
Command: npx skills add https://github.com/sorty-organizer/Sorty --skill swiftui-performance-audit-sorty-organizer

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

SwiftUI performance issues can be hard to diagnose from code alone, leading to janky animations, dropped frames, and unresponsive UI.

Core Features & Use Cases

  • Intake-driven triage: gather symptom, reproduction steps, and data flow to guide analysis.
  • Code-first review guidance: identify common SwiftUI smells and anti-patterns that cause invalidation or layout churn.
  • Profiling guidance: step users through how to collect runtime evidence with Instruments, interpret SwiftUI timelines, and apply remediation templates.
  • Output-ready remediation: provide a final audit-style report and verification steps.

Quick Start

Diagnose SwiftUI performance issues by reviewing code first, then guide profiling with Instruments when runtime evidence is needed.

Frequently Asked Questions about swiftui-performance-audit

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

FAQPage Schema
How do I diagnose SwiftUI performance issues and janky animations from my code?

Diagnose SwiftUI performance issues by conducting a code-first review to identify common anti-patterns causing invalidation or layout churn, then gather symptom data and reproduction steps to guide analysis.

What causes excessive view updates and slow rendering in a SwiftUI hierarchy?

Excessive view updates and slow rendering in a SwiftUI hierarchy are caused by common code smells and anti-patterns that trigger invalidation churn, which can be identified through intake-driven triage and code review.

How do I profile SwiftUI rendering and update costs using Instruments?

Profile SwiftUI rendering and update costs by collecting runtime evidence with Instruments, interpreting SwiftUI timelines to isolate layout and update costs, and applying remediation templates to verify fixes.

Can I use this SwiftUI performance audit workflow during code reviews and design discussions?

Yes, you can use this SwiftUI performance audit workflow during code reviews and design discussions to identify slow rendering, jank, or excessive view updates across the hierarchy before profiling.

What is the best way to triage dropped frames and unresponsive UI in SwiftUI?

The best way to triage dropped frames and unresponsive UI in SwiftUI is to isolate renders, layout, and update costs using intake checklists, code-smell guidance, and profiling workflows to guide remediation.