Build a Stream Chat App With Xcode 26.3's Coding Agent

The build log details the process of creating a SwiftUI Stream Chat app using Xcode 26.3's coding agent, Stream's Agent Skills, and Anthropic's Claude within the Xcode IDE. By providing a high-level prompt rather than detailed instructions, the coding agents autonomously explore the project, edit files, adjust build settings, and verify their work through SwiftUI Previews. The process involves setting up a SwiftUI App project in Xcode, installing necessary skills for handling Swift and Stream SDKs, and running CLI commands separately due to Xcode's restricted environment. A key challenge addressed was a WebSocket race condition, which the agent diagnosed by reading SDK source rather than through guesswork. The log highlights the seamless integration of AI to handle idiomatic code and SDK-specific tasks, demonstrating how agents can autonomously scaffold a functional chat application from a simple prompt while leveraging current SDK knowledge to ensure code accuracy and efficiency.

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