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Design Patterns

Checked
ratacat·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 ratacat/claude-skills --skill design-patterns -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

ratacat

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

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

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

  • Pinned to a commit: passed

    Scanned ratacat/claude-skills at d4b471d05d.

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

Commit
d4b471d05d
Manifest
skills/design-patterns/SKILL.md
Scanned
21 files, 12,369 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

The design-patterns skill provides AI agents with access to established software architecture principles, enabling them to generate code that adheres to industry-standard structural solutions. It allows agents to refactor legacy systems and create new components using proven methodologies like Singleton, Factory, and Observer patterns.

When to use it

  • Refactoring monolithic functions into modular, maintainable classes.
  • Generating boilerplate code for complex event handling or state management.
  • Ensuring new features align with existing architectural constraints.
  • Debugging structural issues in legacy codebases by applying known patterns.

Key capabilities

  • Identification and implementation of Gang of Four (GoF) design patterns.
  • Code generation that enforces separation of concerns.
  • Refactoring suggestions to improve scalability and testability.
  • Explanation of pattern trade-offs for specific use cases.

Example prompts

  • "Refactor this synchronous API client into an Observer pattern to handle multiple event listeners."
  • "Generate a Factory method implementation for creating different types of database connections based on configuration strings."
  • "Explain how the Strategy pattern can replace a large switch statement in this payment processing module."

Tips & gotchas

Ensure your AI agent has access to the specific language's standard library documentation, as some patterns have idiomatic implementations that differ across ecosystems. Overuse of complex patterns can sometimes reduce code readability; ask the agent to justify why a pattern is necessary before implementation.