software-design-philosophy-skill

CSharpGuidelines is a documentation collection for C# through version 14, covering coding rules, design principles, layout conventions, and companion Agent Skills. Teams can read the material on its website or build a full PDF and two-page cheatsheet from the repository, making it useful for shared coding standards and review practices. Building the PDFs requires the .NET 10 SDK and Google Chrome.

Use an AI coding agent to review and improve web projects against Lighthouse guidance, Core Web Vitals patterns, WCAG 2.2 accessibility practices, SEO requirements, and modern browser standards. The skills work across major frameworks or plain HTML and can be invoked by topic, but this is an unofficial collection intended as structured engineering guidance rather than an official certification tool.

App Store Preflight checks an iOS or macOS project before review by inspecting the Xcode project, source code, configuration, and store metadata. It identifies the app type, loads a matching checklist, scans for known rejection patterns, and reports severity, affected files, and remediation steps. Its references cover common cases such as subscriptions, user-generated content, kids, health, games, macOS, and AI apps. Metadata inspection uses the asc CLI and assumes its canonical JSON layout, so fastlane projects may need path adaptation.

guard-skills supplies focused second-pass reviews for production code, tests, documentation, WordPress, and WooCommerce work. Run the relevant guard after an agent changes a repository to catch patterns such as needless abstraction, ineffective tests, documentation drift, or platform-specific mistakes before commit or merge. The package is primarily Markdown and includes no executable scripts, network calls, or credential requirements.