m12-lifecycle

What problem does it solve?

This Skill helps engineers design and reason about resource lifecycles in Rust applications, enabling safe and predictable cleanup across modules.

Core Features & Use Cases

• RAII-based cleanup: ensures automatic release of resources when going out of scope.
• Lazy initialization and scoped ownership: using OnceLock and related patterns to defer creation and manage access in concurrent contexts.
• Resource pooling and domain boundaries: guidelines for pooling expensive resources and defining clear lifecycle boundaries.

Quick Start

Define a small resource wrapper that releases its handle in Drop, use OnceLock for lazy initialization, and apply scope guards to manage lifecycle boundaries.