Installation

Install han binary (required for hooks to work):

curl -fsSL https://han.guru/install.sh | bash

Then install this plugin:

han plugin install objective-c

Overview

Advanced Objective-C programming skills for iOS and macOS development

Skills

This plugin provides the following skills:

Objc Arc Patterns
Objc Blocks Gcd
Objc Protocols Categories

Usage

Once enabled, Claude will automatically apply these skills when working with relevant code. The plugin provides context and expertise that Claude uses to:

Write idiomatic code following best practices
Suggest appropriate patterns and architectures
Catch common mistakes and anti-patterns
Provide framework-specific guidance

Installation

Install via the han CLI:

bash

han plugin install objective-c

Skills

📖

Objective-C ARC Patterns

Use when automatic Reference Counting in Objective-C including strong/weak references, retain cycles, ownership qualifiers, bridging with Core Foundation, and patterns for memory-safe code without manual retain/release.

📖

Objective-C Blocks and GCD

Use when blocks (closures) and Grand Central Dispatch in Objective-C for concurrent programming including block syntax, capture semantics, dispatch queues, dispatch groups, and patterns for thread-safe asynchronous code.

📖

Objective-C Protocols and Categories

Use when objective-C protocols for defining interfaces and categories for extending classes, including formal protocols, optional methods, class extensions, and patterns for modular, reusable code design.

Hooks

🔧

PostToolUse

Runs immediately after a tool completes successfully. Can validate outputs, log results, or trigger follow-up actions based on tool execution.

han hook run objective-c format --async

🛑

Stop

Runs when the main Claude Code agent has finished responding. Can verify task completion, check quality gates, or ensure documentation requirements are met before the session ends.

han hook run objective-c format --async

han hook run objective-c build --async

🛑

SubagentStop

Runs when a Claude Code subagent (Agent tool call) has finished responding. Can validate subagent outputs, enforce quality standards, or trigger additional workflows after delegated tasks complete.