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design-patterns

Skill2 starsChanged 3 months agoLicence not identifiedView on GitHub

Selects, applies, and pushes back on the 23 Gang of Four design patterns. Covers intent, fit, trade-offs, and the cheaper alternative that usually wins. Use when choosing between patterns, naming an existing structure, or refactoring toward one — and when the user says "which pattern", "what pattern should I use", "design pattern", "GoF", "factory", "strategy", "observer", "decorator", "adapter", "singleton", "visitor", or describes a shape a pattern solves: swappable algorithms, notifying subscribers, undo/redo, plugin systems, wrapping a third-party API, tree structures, or object creation that has grown unwieldy.

33 other projects use a version of this.

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Used with

Projects with it also use logging-patterns, tdd-rust and 10 more.

Other files people use alongside this one.

Files found in the same public projects as a version of this one, more often than they turn up anywhere else. Each project counts once, large collections count for less, and this file's own repository is left out.
  • DIL8654Skill

    logging-patterns

    Keep logs structured, correlated, low-noise, and safe for production support. Use when adding operational logging, reviewing observability, or improving diagnostics in .NET services.

    Also in 7 projects that use this

  • FlorianBruniauxSkill

    tdd-rust

    Also in 3 projects that use this

  • nek1987Skill

    solid-principles

    SOLID object-oriented design principles for maintainable code

    Also in 5 projects that use this

  • mstuder-slalomSkill

    jpa-patterns

    JPA/Hibernate patterns for entity design, relationships, query optimization, transactions, auditing, indexing, pagination, and pooling in Spring Boot.

    Also in 6 projects that use this

  • ufodev-ioSkill

    security-guardian

    Comprehensive security layer for all interactions with Claude: audits code, dependencies, commands, configs, and AI-generated output for vulnerabilities. Protects against prompt injection, data leaks, unsafe advice, and social engineering. Works in Cursor, Claude Code, claude.ai, and API contexts. Use always as a background security protocol in any Claude-powered environment.

    Also in 3 projects that use this

  • DIL8654Skill

    api-contract-review

    Review ASP.NET Core Web API contracts for HTTP semantics, versioning, backward compatibility, and response consistency. Use when the user asks to review an API, check endpoints, validate REST behavior, or before releasing contract changes.

    Also in 3 projects that use this

The file

We split this skill into the rules it gives an agent

3 rules. 0 are common, 3 are distinctive, and 0 are very specific to this project.

  • 0

    Common

    Most of the 32 edited versions we read keep these.

  • 3

    Distinctive

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

The licence could not be identified — read it at the source. We count its rules but don't quote them. Read them on GitHub.

“Common” is measured: kept by at least 6 in 10 of the 32 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

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