Viper Uikit

Q: What is a Claude Code skill and how does the Viper Uikit skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Viper Uikit is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: mobile · Last updated: 2026-05-21

lang:swift

Use when working with VIPER architecture in iOS/UIKit apps. Triggers on: creating new VIPER modules (View/Interactor/Presenter/Entity/Router); fixing retain cycles between VIPER layers; removing UIKit imports from Presenters; refactoring massive ViewControllers into VIPER layers; migrating VIPER Views to SwiftUI via UIHostingController; handling navigation with VIPER Routers; moving business logic from Presenter into Interactor; wiring module Builders with dependency injection; testing Presenters or Interactors in isolation; or managing UITabBarController across VIPER modules. Also use when decomposing god ViewControllers, defining module protocol contracts, or phasing an MVC-to-VIPER migration.

About this skill (catalog notes)

Viper Uikit includes 8 code blocks for direct copy-paste. At roughly 2,417 words the SKILL.md is on the longer end of the catalog distribution.

Indexed lastmod: 2026-05-21
Catalog position: Engineering · mobile
Indexed related skills: 10

How Viper Uikit fits the catalog

Viper Uikit sits in the Engineering category under the mobile sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Enterprise-grade UIKit VIPER architecture skill. Opinionated: prescribes passive Views (UIViewController IS the View), single-use-case Interactors, UIKit-free Presenters, protocol-isolated module boundaries, enum-based Builders with constructor injection, and optional Coordinator integration for multi-flow apps. VIPER's value is testability at scale — each layer is independently testable behind protocols. The tradeoff is boilerplate (5-15 files per module), which means code generation and consistent conventions are essential.

What this skill does

Viper Uikit is a community-contributed Claude Code skill in the mobile sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/viper-uikit/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when working with VIPER architecture in iOS/UIKit apps. Triggers on: creating new VIPER modules (View/Interactor/Presenter/Entity/Router); fixing retain cycles between VIPER layers; removing UIKit imports from Presenters; refactoring massive ViewControllers into VIPER layers; migrating VIPER Views to SwiftUI via UIHostingController; handling navigation with VIPER Routers; moving business logic from Presenter into Interactor; wiring module Builders with dependency injection; testing Presenters or Interactors in isolation; or managing UITabBarController across VIPER modules.

Who uses this skill

The Viper Uikit Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 118,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/viper-uikit
curl -L https://claudskills.com/skills/viper-uikit/SKILL.md \
  -o ~/.claude/skills/viper-uikit/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/viper-uikit/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/viper-uikit/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\viper-uikit\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Viper Uikit Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/viper-uikit/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Viper Uikit skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Viper Uikit skill?

Use Viper Uikit when your Claude Code task falls under the Engineering category — specifically in the mobile area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Viper Uikit" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Viper Uikit skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Viper Uikit is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

ClaudSkills. (2026). Viper Uikit [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/viper-uikit/

BibTeX

@misc{viper-uikit-2026,
  author    = {ClaudSkills},
  title     = {Viper Uikit [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/viper-uikit/}
}

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