Xcode 26.3 adds support for Claude, Codex, and other agentic tools via MCP

The key feature of 26.3 is support for full-fledged agentic coding tools, like OpenAI’s Codex or Claude Agent, with a side ...

Xcode’s new AI agents don’t just suggest code, they get things done for you

With Xcode 26.3, Apple brings agentic AI to app development, enabling tools from OpenAI and Anthropic to build, debug, and automate code actively.