~x-ai/grok-latest → A (2:1)

A centralizes canonicalization and room-aware href rules into shared slug-types newtypes (GardenItemUrl, ForumThreadUrl, TildeOntologyPath) and threads those through API/DTOs and RPC, replacing ad-hoc string helpers with lasting, correct-by-construction path identity. B’s sorterc work is real and useful (fast parse-only scan, richer parse_error output, compile --ingest), but it is localized tooling rather than core domain structure.