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Master GCD Operations: AI Skills for iOS/macOS Concurrency

Master GCD Operations: AI Skills for iOS/macOS Concurrency

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Works withClaude CodeCursorCodexGemini CLI
Master GCD Operations: AI Skills for iOS/macOS Concurrency

Master GCD Operations: AI Skills for iOS/macOS Concurrency

Regular price £23.99
Regular price £23.99 Sale price
SAVE Sold out

Master GCD Operations: AI Skills for iOS/macOS Concurrency

This AI skill package is designed to support developers in addressing iOS and macOS concurrency issues using Grand Central Dispatch (GCD) and OperationQueue. It is tailored for scenarios involving dispatch queues, thread safety, and lock mechanisms, ensuring smooth integration and operation within Apple platform code.

What this skill does

  • Identifies deadlocks such as sync on main, nested sync, and ABBA lock ordering.
  • Prevents thread explosion due to excessive DispatchQueue.global() calls.
  • Detects data races through integration with Thread Sanitizer (TSan).
  • Manages DispatchGroup enter/leave imbalances.
  • Prevents DispatchSource timer leaks.
  • Assists with lock selection including NSLock, OSAllocatedUnfairLock, and os_unfair_lock.
  • Supports reader-writer barriers on custom concurrent queues.
  • Facilitates migration to Swift Concurrency actors.
  • Addresses risks when using AsyncOperation subclasses, dispatchPrecondition, and OperationQueue throttling.

Who it is for

This skill package is meant for developers and development teams working with AI coding agents such as Claude Code, Cursor, and Codex, specifically those dealing with complex concurrency issues on Apple platforms.

Use cases

  • Laying out dependency graphs and cancellations in app development using OperationQueue.
  • Ensuring thread safety in performance-critical paths using GCD.
  • Improving concurrency patterns when transitioning from GCD to Swift Concurrency.

Technical details

This skill utilizes a structured approach to applying GCD and OperationQueue for enterprise-grade concurrency solutions. It prescribes serial queues by default, emphasizes target queue hierarchies, and recommends the use of labeled queues for improved code clarity and maintenance. While GCD is not deprecated, it remains integral for parallelism and performance optimization.


Source & Licence

This package is built on open-source work published by rusel95 (rusel95/ios-agent-skills) and distributed under MIT. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

  • Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
  • Format: ZIP archive containing the skill files, documentation and the original licence.
  • Support: support@mcpcart.com — we aim to reply within 2 business days.
  • Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.

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Dropped it into Claude Code and my LCP went from 4.1s to 1.9s in an afternoon. It explains every fix it suggests, so I actually learned something too.

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Works with both Cursor and Claude Code exactly as advertised. Setup took less than five minutes with the included README.

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