Swift

What This Skill Does

The Swift skill provides an expert-level, safety-oriented assistant for Swift development within OpenClaw. It focuses on the most critical pain points of the language: memory management, concurrency safety, and runtime stability. By leveraging this skill, you can ensure that your code strictly adheres to modern Swift best practices, specifically avoiding common pitfalls like retain cycles in closures, forced unwrap crashes, and race conditions in concurrent applications.

Installation

To integrate this skill into your environment, run the following command in your terminal: clawhub install openclaw/skills/skills/ivangdavila/swift

Use Cases

• Debugging Retain Cycles: Identify and fix strong reference cycles in complex view controller hierarchies or asynchronous tasks.
• Modern Concurrency Audit: Refactor legacy GCD code to modern Swift Concurrency using actors, async/await, and Sendable protocols.
• Safe Data Handling: Transition from unsafe force-unwrapping and try! patterns to robust error handling using guard, if let, and do-catch blocks.
• SwiftUI State Management: Troubleshoot state resets and dependency injection issues in SwiftUI, particularly regarding @StateObject versus @ObservedObject life cycles.
• Performance Tuning: Optimize collection usage, string indexing, and generic specializations to reduce binary bloat and memory footprint.

Example Prompts

1. "I'm experiencing a memory leak in my SwiftUI app when navigating back from a detail view. Can you help me identify if I'm capturing self strongly in my closures?"
2. "I have an Actor that is causing data inconsistency issues. How does reentrancy work at my await suspension points, and how can I fix this?"
3. "Refactor this piece of code: I am currently using force unwrap and try! because I'm in a rush. Please provide a safe, production-ready implementation that handles errors gracefully."

Tips & Limitations

• Static Analysis: Remember that this skill provides structural and logic advice; it is most effective when paired with compiler warnings enabled in Xcode.
• Memory Safety: Always prioritize [weak self] in escaping closures. While the tool provides code, verify its logic against your specific architectural needs.
• Concurrency: Be wary of reentrancy at await points; the skill excels at pointing these out, but the developer must design state transitions to be atomic if necessary.
• Build Size: The skill warns about generic code bloat; keep your generic constraints specific to avoid unnecessary binary overhead.