Module generator 

Entity → Markdown generator. Deterministic output for roundtrip stability.

Output order:

1. YAML frontmatter (metadata keys in schema metadata_fields order)
2. # {title}
3. Required sections (schema order)
4. Relationships section (if any explicit relations)
5. Optional sections (schema order)

Constants

MISSING_DATE_SENTINEL

Sentinel value emitted into the frontmatter for required date fields the caller did not supply and the schema does not auto-fill. Reads cleanly as “obviously a placeholder” to humans and agents (epoch zero in ISO 8601) and never gets mistaken for a real claim.

Functions

generate_markdown

Generate markdown from a structured entity.