Xcode 26.3 adds support for Claude, Codex, and other agentic tools via MCP
Summary
Ars Technica reports that Xcode 26.3 adds support for agentic coding tools like Claude and Codex via Model Context Protocol (MCP), enabling a side panel to assign tasks to AI agents and track progress. The update expands MCP as an open protocol, allowing other tools that support MCP to integrate with Xcode, and leverages deeper IDE access and on-device AI capabilities. A release candidate is rolling out soon with a final release expected later, signaling Apple's push toward broader AI-enabled development workflows.