tech
Xcode 26.3 adds support for Claude, Codex, and other agentic tools via MCP
With Model Context Protocol (MCP), this works with more than Codex/Claude, too.
TL;DR
- Xcode 26.3 now supports full-fledged agentic coding tools (e.g., OpenAI's Codex, Claude Agent).
- A side panel interface allows assigning tasks to AI agents, with prompt-based control and progress tracking.
- This functionality is enabled by the Model Context Protocol (MCP), an open protocol for AI agent integration.
- Xcode acts as an MCP endpoint, providing AI tools access to IDE primitives like file graphs and project settings.
- While AI chat was previously supported, Xcode 26.3 offers deeper access to IDE features.
- The MCP allows for the connection of other tools supporting the protocol, including locally run models.
- Apple's AI push began with Xcode 26, expanding code completion and chat interfaces.