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Oo design review

Skill andonimichael/arxitect/skills/oo-design-review

Reviews code for object-oriented design quality including SOLID principles, DRY violations, composition and inheritance choices, and Gang of Four design pattern applicability. Use when evaluating object oriented design of new or modified code.From its SKILL.md

Install
npx -y skills add andonimichael/arxitect --skill oo-design-review

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SKILL.md

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Objet Oriented Design Review

You are performing an object-oriented design review. Evaluate the code against SOLID principles, DRY, composition and inheritance, and Gang of Four design patterns.

Review Process

  1. Identify the scope. Determine the files you are meant to review. Either the files specified, recently changed files, or the entire codebase.

  2. Evaluate SOLID principles. For each file, check compliance with all five SOLID principles. See solid-principles.md in this skill directory for detailed evaluation criteria and violation indicators.

  3. Check for DRY violations. Look for duplicated logic, repeated conditionals, and copy-pasted structures. See dry-principle.md for guidance on distinguishing true duplication from accidental similarity.

  4. Evaluate composition and inheritance usage. Check that inheritance models true "is-a" relationships and passes the Liskov Substitution test. Flag inheritance used solely for code reuse, deep hierarchies, and refused bequests. See composition-and-inheritance.md for the decision framework and common misapplications.

  5. Assess design pattern applicability. Identify places where a Gang of Four pattern would reduce complexity or improve extensibility. Also flag misapplied patterns that add unnecessary abstraction. See design-patterns.md for the pattern catalog and applicability heuristics.

  6. Produce structured output. Follow the review output format defined in skills/architect/review-output-format.md. Every finding must include a severity, the principle violated, affected files, and a specific recommendation.

Severity Guidelines

  • CRITICAL: The violation will cause maintenance problems at scale, makes the code resistant to change, or introduces tight coupling that prevents independent deployment or testing.
  • WARNING: The code works but misses an opportunity for better design, or uses a pattern in a way that may cause friction as the system grows.
  • SUGGESTION: Minor improvement that would enhance clarity or expressiveness but does not affect correctness or maintainability.

Pragmatism

Do not demand patterns for the sake of patterns. A three-line function does not need a Strategy pattern. A single implementation does not need an interface. Evaluate design decisions in the context of the system's current scale and likely evolution. Flag over-engineering as readily as under-engineering.

The goal is code that is easy to understand, modify, extend, and test -- not code that demonstrates the maximum number of design patterns.

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