solid-principles
Apply SOLID Principles to Object-Oriented Code
Object-oriented code becomes difficult to test and extend when responsibilities and dependencies are unclear. This skill provides practical SOLID reviews, examples, and refactoring guidance.
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Review the Skillstore skill "solid-principles" from https://skillstore.io/skills/benny9193-solid-principles.md and its manifest at https://skillstore.io/api/skills/benny9193-solid-principles/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.Your Agent should still show its plan and request any confirmation required by the security policy.
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Test it
Using "solid-principles". Review a user service that creates accounts, sends email, validates input, and generates reports.
Expected outcome:
The service violates single responsibility. Separate account creation, validation, email delivery, and reporting, then inject those collaborators into the workflow.
Using "solid-principles". Assess a payment processor that adds each payment type through another conditional branch.
Expected outcome:
The processor resists extension. Define a payment method contract and let each payment type implement processing without changing the coordinator.
Using "solid-principles". Review a repository that constructs its database client internally.
Expected outcome:
The repository depends on a concrete implementation. Inject a database abstraction so tests and alternative providers can supply compatible implementations.
Security Audit
Medium RiskAll 16 static findings are false positives caused by Markdown fences or TypeScript template literals, with no external command execution, database file access, or reconnaissance. However, the recommended dependency inversion example directly interpolates an identifier into SQL. This pattern can enable SQL injection when adapted to executable code.
Confirmed security concerns (1)
Risk Factors
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APA citation
Benny9193. (2026). solid-principles security audit report (audit version 9) [Author version unspecified]. Skillstore. https://skillstore.io/skills/benny9193-solid-principles/audits/9BibTeX citation
@techreport{benny9193-benny9193-solid-principles-2026,
author = {Benny9193},
title = {solid-principles security audit report (audit version 9)},
institution = {Skillstore},
year = {2026},
number = {9},
url = {https://skillstore.io/skills/benny9193-solid-principles/audits/9},
note = {Author version unspecified}
}CITATION.cff
cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "solid-principles security audit report (audit version 9)"
version: "unspecified"
type: report
authors:
- name: "Benny9193"
date-released: "2026-07-23"
url: "https://skillstore.io/skills/benny9193-solid-principles/audits/9"
identifiers:
- type: other
value: "skillstore:benny9193-solid-principles:audit:9"
description: "Skillstore immutable audit report identifier"
Compare variants
2 installable variantsEach author remains a separate installable skill. The recommended variant is ranked by Skillstore evidence.
Why this variant is first
doubleslashse-solid-principles
2026-09-09
benny9193-solid-principles
2026-09-09
Skillstore Score
Why this score Evidence Confidence: HighWhat You Can Build
Review a Feature Design
Map classes and interfaces to SOLID principles before implementation begins.
Refactor Legacy Services
Find mixed responsibilities, rigid conditionals, and tightly coupled dependencies in existing services.
Teach Design Principles
Use concise examples and review questions during mentoring or team workshops.
Try These Prompts
Explain the {principle} principle using a small example in {language}. Include one violation and one improved design.Review this {class description} for SOLID violations. Name each issue, explain its impact, and suggest focused changes.Create an incremental SOLID refactoring plan for {component}. Preserve behavior, identify tests first, and explain each design tradeoff.Evaluate {architecture description} against all five SOLID principles. Prioritize material risks and avoid abstractions without a current use case.Best Practices
- Apply SOLID where change, testing, or reuse creates measurable pressure.
- Preserve behavior with tests before restructuring responsibilities or dependencies.
- Prefer small, domain-focused abstractions with more than one realistic implementation.
Avoid
- Do not split every method into a separate class.
- Do not introduce interfaces only to follow a principle mechanically.
- Do not ignore security, performance, or domain constraints during refactoring.