Mx-Iris

You can add os.log instrumentation to Swift code using FrameworkToolbox: apply @Loggable to types, write #log(.level, ...) calls, configure custom subsystem/category/access levels, choose privacy levels, and debug logger setup including pre-macOS 11 fallback behavior.

macOS and Swift developers who use the FrameworkToolbox package and need structured logging. It suits engineers instrumenting types with @Loggable, tuning log privacy levels, or maintaining compatibility with systems older than macOS 11.

Your Swift project must depend on FrameworkToolbox, since the skill covers its @Loggable macro and #log calls. It targets macOS environments, with specific guidance for fallback behavior on systems earlier than macOS 11 where os.log APIs differ.

The skill guides you through setting a custom subsystem and category, selecting the appropriate access level for #log calls, and choosing a privacy level so sensitive values are correctly redacted in os.log output on macOS.