Apple Xcode 26.3 introduces AI, supports Claude and Codex smarts

Apple releases an Xcode 26.3 version, formally introducing "smart body programming" support. Developers can directly call AI intelligent bodies such as Claude Agent in Anthropic and Codex in OpenAI; integrated AI intelligence can browse through the entire project structure, read-and-write-editing files, build projects according to instructions, and automatically capture the official Apple document to solve problems; user feedback is polarized, with some claiming comfort, while others reflect the existence of card death, poor Diff mechanisms, and unstable cross-file re-engineering。