swiftui-performance SKILL.md skillA
swiftui-performance from jordancoin/ios-skills-collection is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jordancoin/ios-skills-collection/swiftui-performance@git:20260329.893209fPins git:20260329.893209f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jordancoin/ios-skills-collection
- Path
skills/dpearson2699--swiftui-performance/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260329.893209f, committed Mar 29, 2026
- Size
- 17,712 bytes
- Repository stars
- 6
- License
- a license file GitHub does not identify
Audit and improve SwiftUI runtime performance. Use when diagnosing slow rendering, janky scrolling, high CPU, memory usage, excessive view updates, layout thrash, body evaluation cost, identity churn, view lifetime issues, lazy loading, Instruments profiling guidance, and performance audit requests.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# SwiftUI Performance Audit SwiftUI view performance end-to-end, from instrumentation and baselining to root-cause analysis and concrete remediation steps. ## Contents - [Workflow Decision Tree](#workflow-decision-tree) - [1. Code-First Review](#1-code-first-review) - [2. Guide the User to Profile](#2-guide-the-user-to-profile) - [3. Analyze and Diagnose](#3-analyze-and-diagnose) - [4. Remediate](#4-remediate) - [Common Code Smells (and Fixes)](#common-code-smells-and-fixes) - [5. Verify](#5-verify) - [Outputs](#outputs) - [Instruments Profiling](#instruments-profiling) - [Identity and Lifetime](#identity-and-lifetime) - [Lazy Loading Patterns](#lazy-loading-patterns) - [State and Observation Optimization](#state-and-observation-optimization) - [Common Mistakes](#common-mistakes) - [Review Checklist](#review-checklist) - [References](#references) ## Workflow Decision Tree - If the user provides code, start with "Code-First Review." - If the user only describes symptoms, ask for minimal code/context, then do "Code-First Review." - If code review is inconclusive, go to "Guide the User to Profile" and ask for a trace or screenshots. ## 1. Code-First Review Collect: …
Read the whole file at its exact version.
How to install
mdr add jordancoin/ios-skills-collection/swiftui-performance@sha256:bc5a32918ca65c1eThe line at the top of this page pins the label git:20260329.893209f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_b22mygp4dwk53u7n)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 29, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (17712 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jordancoin/ios-skills-collection · 6 stars · license a license file GitHub does not identify · pushed 2026-09-10 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_b22mygp4dwk53u7n GET https://markdownregistry.com/api/v1/resolve?ref=jordancoin/ios-skills-collection/swiftui-performance GET https://markdownregistry.com/api/v1/blob/bc5a32918ca65c1e50afacdbd08cd4a4f381dadca44880a78cd85959131c853e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.