xcproj

Edit Xcode's JSON project format (App.xcodeproj/project.xcproj) safely.

The format shipped in Xcode 27.2. Apple's reference implementation, apple/xcode-project-format (XCSchema types), is the source of truth for keys and values; Xcode-specific behavior (conversion, loading, building) was verified on Xcode 27.2 (27B5019j). If Xcode's own tools disagree with this skill, trust the tools.

Detect the format

ls App.xcodeproj