Does it support adding properties to categories?

While categories cannot add instance variables, this skill demonstrates how to use Objective-C associated objects to achieve property-like behavior.

Can this skill handle optional protocol methods?

Yes, it provides patterns for defining @optional methods and includes the necessary respondsToSelector: logic to safely call them at runtime.

Is this skill relevant for Swift interoperability?

Yes, well-defined Objective-C protocols and categories are essential for creating clean interfaces that bridge effectively to Swift codebases.

What is the difference between a category and a class extension in this skill?

Categories are used for extending existing classes (including system classes) across files, while class extensions are used for defining private interfaces within a single implementation file.

Objective-C Protocols and Categories

Name: Objective-C Protocols and Categories
Author: TheBushidoCollective

byTheBushidoCollective

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Mobile Development

Implements modular and reusable Objective-C code using protocols for interfaces and categories for class extensions.

This skill enables Claude to master the core architectural patterns of Objective-C by implementing formal protocols, categories, and class extensions. It provides standardized patterns for defining method contracts, enabling polymorphism through delegation, and extending existing classes without subclassing. Whether you are refactoring large implementation files into modular categories or defining private APIs through class extensions, this skill ensures your Objective-C codebase remains organized, flexible, and professionally architected.

Key Features

01Development of class extensions for private property and method management

0239 GitHub stars

03Creation of class categories for non-subclass class extensions and organization

04Support for protocol inheritance and runtime conformance checking

05Implementation of formal protocols with required and optional method support

06Pattern implementation for the delegation and data source design patterns

Use Cases

01Refactoring monolithic implementation files into specialized categories for better maintainability

02Extending system classes like NSString or UIColor with custom utility methods

03Defining communication contracts between components using protocols and delegates

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add thebushidocollective/han objc-protocols-categories

For use in Claude.ai and ChatGPT

Download Skill