"The latest release of Xcode, Xcode 26.3, extends support for coding agents, such as Anthropic's Claude Agent and Open's Codex, helping developers tackle complex tasks and improve their productivity. With agentic coding, Xcode can work with greater autonomy toward a developer's goals - from breaking down tasks to making decisions based on the project architecture and using built-in tools. The new release expands the agentic coding capabilities introduced in Xcode 26 by providing coding agents with access to more Xcode's features."
"Apple says agents can now collaborate, search documentation, explore file structures, and update project settings. Furthermore, agents have now a way to verify their code by capturing Xcode Previews. This enables them to see what the interface they are building looks like, identify any issues, and iterate from there. This is " particularly useful when building SwiftUI views, where the visual output is the thing that matters most", says Anthropic."
"Anthropic also emphasizes that Xcode 26.3 integrates the Claude Agent SDK, which powers Claude Code and allows developers to get "the full power of Claude Code [...] including subagents, background tasks, and plugins". Another major addition in Xcode 26.3 is support for the Model Context Protocol, which lets developers use any MCP-compatible agent or tool with Xocde. This also enables the use of agents other than Claude or Codex directly within the IDE. MCP integration is enabled using xcrun mpcbridge, as shown in the following example:"
Xcode 26.3 extends support for coding agents such as Anthropic's Claude Agent and Open's Codex to help developers tackle complex tasks and boost productivity. Agents can operate with greater autonomy, breaking down goals, making architecture-driven decisions, and using built-in tools. Agents gain access to more Xcode features, including collaboration, documentation search, file-structure exploration, project-setting updates, and code verification via Xcode Previews to inspect and iterate user interfaces. Xcode 26.3 integrates the Claude Agent SDK and adds Model Context Protocol support, enabling any MCP-compatible agent or tool to be used inside the IDE via xcrun mpcbridge.
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