G.3:9 - Consequences

• Legality becomes checkable. Downstream patterns can reject illegal operations and rely on explicit legality surfaces rather than implicit conventions.
• Comparability without semantic flattening. Plural traditions remain representable because CHR preserves local meaning while making lawful relations explicit.
• Reproducible downstream behavior. Edition/policy pins make “why did this change?” answerable and RSCR actionable.
• Authoring overhead. The pattern shifts effort to up‑front authoring: explicit cards, pins, and tests are non‑optional when CHR becomes a public kit surface.