Xcode 26.3 ships with a built-in MCP (Model Context Protocol) server that enables AI assistants like Claude Code to interact directly with Xcode projects — querying project structure, triggering builds, and running tests. The post walks through enabling MCP in Xcode's Intelligence settings, registering the server with Claude Code via a single CLI command, and using a JavaScript for Automation (JXA) hook to auto-approve the recurring MCP connection dialog. The author also recommends adding project-specific context to a CLAUDE.md file for better results.
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