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Root declarations require one non-empty @category. Reuse nearby categories;
prefer lowercase plurals and gerunds while preserving canonical domain casing.
Common categories include:
- Shapes:
constructors, destructors, models, schemas, guards,
predicates, getters, accessors, instances, constants, protocols,
prototypes, re-exports, unsafe, testing.
- Effect:
services, tags, layers, context, resource management,
running, errors, error handling.
- Operations:
combinators, filtering, mapping, sequencing, zipping,
combining, merging, converting, transforming, folding, splitting,
repetition.
- Shared:
utility types, encoding, decoding, serialization, tracing,
metrics, logging, annotations, references, symbols, type IDs,
configuration, math, comparisons, ordering.
Keep these boundaries: services are contracts, tags identify services, and
layers provide them; getters retrieve values while accessors read context;
errors model failures while error handling recovers or maps them; models are
domain data while utility types are type-level contracts; guards narrow while
predicates return booleans.
