Module schema_fields 

Builtin frontmatter field definitions.

This module is the single source of truth for all frontmatter fields that moss recognizes. The schema returned by [schema::builtin_schema()] is generated from the BUILTIN_FIELDS table, not from a hand-maintained JSON file. This eliminates drift between the build pipeline’s FrontMatter struct and the editor/validation schema.

Adding a new field

1. Add the field to FrontMatter in crates/moss-core/src/frontmatter_typed.rs.
2. Add a corresponding entry to BUILTIN_FIELDS in this file.

Both files live in the same crate — add new fields to both in the same commit. Co-location and PR review are the enforcement mechanism.

skip_schema fields

Fields with skip_schema: true exist in the FrontMatter struct (the build pipeline uses them) but are not exposed in the editor form or validation schema. These are typically site-level config fields read only from the homepage, auto-generated fields, or fields that will migrate to plugin- contributed schemas.

Structs

BuiltinField

A builtin frontmatter field definition.

Constants

BUILTIN_FIELDS

All builtin frontmatter fields recognized by moss.