The DraftCXU data model includes supporting_quotes as a list, knowledge_type as an enum, claim_type as an enum, is_assumption as a boolean, parent_assumption_ids as a list, keywords as a list, and confidence as a float from 0.0 to 1.0 so that metadata and provenance are preserved.

supporting_quotes: list # 3-6 verbatim source quotes

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

knowledge_type: enum # axiom | derived | prescribed

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

claim_type: enum # definition | requirement | procedure | ...

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

is_assumption: bool

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

parent_assumption_ids: list

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

confidence: float # 0.0-1.0

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md