Changelog

0.1.0.0 — 2026-03-18

• Initial release.
• Core Layer type with Monad, Arrow, Category, ArrowChoice, Profunctor, Traversing, Alternative, and Selective instances.
• Three construction primitives: effect, resource, bracketed.
• Service for singleton caching with thread-safe initialisation.
• LayerInterceptor for observability hooks.
• Fractal.Layer.Diagnostics for tree-structured initialisation tracing.