uikit-expert SKILL.md skillA
uikit-expert from zinxj/uikit-expert-skill is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add zinxj/uikit-expert-skill/uikit-expert@git:20260227.89c95d0Pins git:20260227.89c95d0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- zinxj/uikit-expert-skill
- Path
uikit-expert/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260227.89c95d0, committed Feb 27, 2026
- First version recorded
- Feb 27, 2026
- Size
- 19,396 bytes
- Repository stars
- 6
- License
- MIT
Write, review, or improve UIKit code following best practices for view controller lifecycle, Auto Layout, collection views, navigation, animation, memory management, and modern iOS 18–26 APIs. Use when building new UIKit features, refactoring existing views or view controllers, reviewing code quality, adopting modern UIKit patterns (diffable data sources, compositional layout, cell configuration), or bridging UIKit with SwiftUI. Does not cover SwiftUI-only code.
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
# UIKit Expert Skill ## Overview Use this skill to build, review, or improve UIKit features with correct lifecycle management, performant Auto Layout, modern collection view APIs, and safe navigation patterns. Prioritize native APIs, Apple's documented best practices, and performance-conscious patterns. This skill focuses on facts and best practices without enforcing specific architectural patterns (no MVVM/VIPER/Coordinator mandates). ## Workflow Decision Tree ### 1) Review existing UIKit code - Check view controller lifecycle usage — `viewIsAppearing` for geometry, `viewDidLoad` for setup only (see `references/view-controller-lifecycle.md`) - Verify Auto Layout correctness — batch activation, no constraint churn, `translatesAutoresizingMaskIntoConstraints` (see `references/auto-layout.md`) - Check collection/table view APIs — diffable data sources, stable identity, CellRegistration (see `references/modern-collection-views.md`) - Verify cell configuration uses `UIContentConfiguration`, not deprecated `textLabel` (see `references/cell-configuration.md`) - Check list scroll performance — prefetching, cell reuse cleanup, reconfigureItems (see `references/list-performance.md`) …
Read the whole file at its exact version.
How to install
mdr add zinxj/uikit-expert-skill/uikit-expert@sha256:c71de7d11922b1a9The line at the top of this page pins the label git:20260227.89c95d0, 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_t2agv7q7qnzpa5le)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Feb 27, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260227.89c95d0 latest | 2026-02-27 | 89c95d0 | 19,396 B | A | view · diff |
| git:20260227.9806ec7 | 2026-02-27 | 9806ec7 | 19,402 B | A | view |
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 (19396 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
zinxj/uikit-expert-skill · 6 stars · license MIT · pushed 2026-10-12 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_t2agv7q7qnzpa5le GET https://markdownregistry.com/api/v1/resolve?ref=zinxj/uikit-expert-skill/uikit-expert GET https://markdownregistry.com/api/v1/blob/c71de7d11922b1a95c13a29d598d9b1dec1084b17b3dcab95a4b15e02bac8bc2
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.