Authoritative source: Standard library map

Standard library map

Module Main role
Prelude Primitive declarations
Core Fundamental ADTs and combinators
Reflection Typed semantic reflection, data-code transforms, derive plans, runtime type identity
Algebra Numeric, comparison, display, and general algebras
Morphism Conversion, embedding, and isomorphism relations
Instances Standard evidence implementations
Categorical Category, Arrow, Functor, Applicative, Monad
Collection Container-oriented algebras
Effect Console, files, exceptions, state, sequencing
Mutable References and mutable arrays
Repr Representation mappings
SIMD Vector and lane abstractions
String Unicode scalar operations and the Textual contract
Utf8 Portable validated canonical UTF-8 text and codecs
Math.* Numeric, linear algebra, statistics, transforms, optimization, random
System.Time Time facilities
Backend.LLVM.Native Current native providers and intrinsics
Base Umbrella re-export loaded by compiler commands

Consult StandardLibrary.md for generated current API details. Module contents may advance with implementation; they do not define new surface syntax.