Xcode 26.3 enables developers to use coding agents like Anthropic’s Claude and OpenAI’s Codex to improve app development efficiency. These agents can autonomously handle tasks, make decisions, and streamline workflows throughout the development cycle. The update also introduces the Model Context Protocol for broader tool integration.

Claude and Codex, the new coding agents from Anthropic and OpenAI, are available for Copilot Pro+ and Enterprise users. You can create agent sessions and assign tasks through GitHub, GitHub Mobile, and VS Code without any extra subscription fees. Each session counts as one premium request during the public preview.