Use GitHub Copilot CLI Agent in Xcode 27 via Agent Client Protocol (ACP)

Summary

Xcode 27 introduces the Agent Client Protocol, allowing Swift developers to integrate any CLI agent, including GitHub Copilot, directly into Xcode. This provides a standardized communication channel between the IDE and AI coding assistants, enabling features like contextual code generation and planning within the familiar Xcode interface. The key takeaway is the enhanced flexibility and seamless integration of diverse AI tools for a more powerful development workflow.