概要
The Core/Std Boundary skill provides specialized guidance for Rust developers to maintain a clean separation between platform-independent 'core' logic and platform-dependent 'std' implementations. It helps Claude identify misplaced dependencies, such as tokio or OS-specific APIs in no_std modules, and suggests architectural patterns like trait-based interfaces to bridge boundaries correctly. This is particularly useful for building portable libraries, embedded systems, or modular applications where runtime independence is a priority.
