Apple has added support for agentic coding in Xcode 26.3, integrating third-party coding agents including Anthropic's Claude Agent and OpenAI's Codex into its development environment.
The update expands Xcode's AI features beyond the coding assistant introduced in Xcode 26. Apple said the new approach allows coding agents to act with more autonomy inside projects. It also gives agents broader access to Xcode tools and workflows.
Apple positioned agentic coding as a way for developers to use agents across more of the app development process. It said agents can break down tasks and make decisions based on a project's architecture. Apple also said agents can use built-in tools as they work through tasks.
"At Apple, our goal is to make tools that put industry-leading technologies directly in developers' hands so they can build the very best apps," said Susan Prescott, Vice President of Worldwide Developer Relations, Apple.
"Agentic coding supercharges productivity and creativity, streamlining the development workflow so developers can focus on innovation," said Prescott.
Agent integrations
Apple said Xcode 26.3 supports coding agents such as Anthropic's Claude Agent and OpenAI's Codex. It said developers can choose the model that best fits their project.
Apple said agents can search documentation, explore file structures, update project settings, and verify work visually. Apple said verification can use Xcode Previews, alongside iteration through builds and fixes.
Anthropic provided more detail on its integration, describing Xcode support for the Claude Agent SDK. It said the SDK is the same harness used by Claude Code.
Anthropic said the integration supports subagents, background tasks, and plugins within Xcode. It said developers can access those features without leaving the integrated development environment.
Visual checks
Anthropic said the Claude Agent SDK integration allows Claude to capture Xcode Previews during development work. It said the agent can review what an interface looks like and iterate based on what it sees.
Anthropic said this matters for SwiftUI development, where visual output guides implementation decisions. It also said Claude can iterate on its own implementation based on Preview output.
Apple's own description of agent behaviour also highlighted visual verification. It said agents can capture Xcode Previews as part of their workflow. Apple included examples of an iPhone app that shows detailed views of Mount Fuji and Yellowstone National Park.
Project context
Anthropic said the integration allows Claude to reason across projects by exploring a project's full file structure. It said the agent can identify where changes are needed before writing code.
It also said the agent can work with an understanding of the whole app and its architecture, rather than focusing on the file currently open. Anthropic referenced development across Apple frameworks including SwiftUI, UIKit, and Swift Data.
Apple also described a similar approach. It said agentic coding can involve decisions based on project architecture. It said agents can collaborate throughout the development life cycle inside Xcode.
Autonomous tasks
Anthropic said developers can provide a goal for long-running tasks, rather than a step-by-step set of instructions. It said Claude can break down work, decide which files to modify, make changes, and iterate when something fails.
It said Claude can search Apple documentation directly when it needs to understand an API or framework usage. It also said the agent can update a project as needed and continue until it completes the task or requires user input.
Apple said agents can search documentation and explore file structures. It also said they can update project settings and iterate through builds and fixes as they work.
Open standard
Apple said Xcode 26.3 makes its capabilities available through the Model Context Protocol, an open standard. It said this provides an option for developers to use any compatible agent or tool with Xcode.
Anthropic also highlighted Model Context Protocol support. It said developers using Claude Code can integrate with Xcode over MCP and capture visual Previews without leaving the command line.
Xcode 26.3 introduces a native integration with the Claude Agent SDK, the same underlying harness that powers Claude Code. Developers get the full power of Claude Code directly in Xcode-including subagents, background tasks, and plugins-all without leaving the IDE, said Anthropic in its statement.
Release status
Apple said Xcode 26.3 is available as a release candidate for members of the Apple Developer Program. Apple said it expects a release on the App Store soon.
Anthropic gave the same availability status, pointing to the release candidate for programme members and a forthcoming App Store release.