guide-swiftui-performance-audit

Audit SwiftUI view performance from code review to remediation.

Updated Apr 27, 2026

Search Tags:#performance #troubleshooting #audit #instrumentation #swiftui #code-review #timelines

Ready to run

npx skills add https://github.com/annurdien/skills --skill guide-swiftui-performance-audit

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: guide-swiftui-performance-audit
Source: https://github.com/annurdien/skills/tree/main/guide-swiftui-performance-audit
Command: npx skills add https://github.com/annurdien/skills --skill guide-swiftui-performance-audit

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Audit and optimize SwiftUI view performance end-to-end, from instrumentation and baselining to root-cause analysis and concrete remediation steps.

Core Features & Use Cases

SwiftUI performance instrumentation guidance: set up Instruments, capture SwiftUI timelines, and identify long updates, hitches, and layout thrash.
Code-first diagnosis: analyze view invalidation, identity churn, and heavy work in body to propose targeted fixes.
Remediation guidance: actionable steps to reduce update fan-out, downsample images, and stabilize list identities.
Guided profiling: request traces or screenshots to support profiling and comparison against baselines.

Quick Start

Provide a minimal SwiftUI view example showing performance symptoms and request an audit to receive a remediation plan.

Frequently Asked Questions about guide-swiftui-performance-audit

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

FAQPage Schema

How do I diagnose and fix slow rendering and janky scrolling in SwiftUI?▼

Diagnose janky scrolling by auditing view invalidation, identity churn, and heavy work in body to identify bottlenecks, then apply targeted fixes like reducing update fan-out or stabilizing list identities.

What is the best way to profile excessive view updates and layout thrash in SwiftUI?▼

Profile excessive view updates and layout thrash by setting up Instruments to capture SwiftUI timelines, identifying long updates and hitches, and comparing traces against instrumented baselines to support root-cause analysis.

Can I audit high CPU and memory usage in my SwiftUI app using just code review?▼

You can start with a code-first diagnosis of high CPU and memory usage, but guided profiling using Instruments and Time Profiler data is recommended when code review is insufficient to pinpoint the root cause.

How do I reduce update fan-out and stabilize list identities in SwiftUI?▼

Reduce update fan-out and stabilize list identities by following remediation guidance that provides actionable steps to downsample images, optimize view invalidation, and prevent unnecessary view updates from propagating.

What do I need to provide to get a root-cause analysis for SwiftUI performance bottlenecks?▼

You need to provide relevant SwiftUI code samples showing performance symptoms, traces or Time Profiler data, and instrumented baselines to receive a root-cause analysis, remediation steps, and performance metrics.