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Design Patterns Expert

Checked
rysweet·vlatest·backend

Helps with design, patterns as part of building frontend UIs and user experiences workflows.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add rysweet/amplihack --skill design-patterns-expert -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

rysweet

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

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  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

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  • No pipe-to-shell installers: passed

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    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned rysweet/amplihack at 84424457d5.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
84424457d5
Manifest
.claude/skills/design-patterns-expert/SKILL.md
Scanned
22 files, 10,136 lines
Copies in repo
2 — all of them scanned
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About this skill

What it does

This skill provides expert guidance on all 23 Gang of Four design patterns. It offers comprehensive knowledge aligned with the philosophical principles of ruthless simplicity, emphasizing practical application over unnecessary complexity. The skill prioritizes identifying when a pattern is genuinely needed and avoids recommending them simply for future flexibility or to force code into a pre-defined structure.

When to use it

  • When you're facing a recurring design problem in your frontend UI development workflow.
  • To understand the benefits and drawbacks of specific design patterns before implementing them.
  • To determine if applying a pattern will genuinely simplify your codebase or introduce unnecessary complexity.
  • When seeking examples of how to apply Gang of Four patterns in real-world scenarios.

Key capabilities

  • Provides detailed specifications for all 23 Gang of Four design patterns.
  • Offers decision frameworks to help choose the appropriate pattern (or determine if a pattern is needed at all).
  • Includes 10 production-ready code examples demonstrating pattern usage.
  • Highlights common antipatterns and situations where specific patterns should be avoided.
  • Organizes patterns into categories: Creational, Structural, and Behavioral.

Example prompts

  • "Explain the Factory Method design pattern."
  • "What are some real-world use cases for the Adapter pattern?"
  • "When should I not use the Singleton pattern?"
  • “Show me an example of how to implement the Builder pattern.”

Tips & gotchas

  • Start by questioning whether a design pattern is truly necessary. The simplest solution that works is often best.
  • Be wary of implementing patterns "for future flexibility" (YAGNI principle).
  • The skill requires at least two concrete use cases to justify recommending a particular pattern.