validate-schema-canon

You can validate a draft JSON schema against canon conventions by checking version fields, entity identifiers, field type enums, and required metadata to catch structural violations before extension scaffolding.

Schema drift occurs when extensions deviate from core canon conventions. Pre-write validation checks prevent it by enforcing schema rules for required metadata and override detection before files are scaffolded.

Yes, you can detect invalid overrides of core entity fields through sidecar protection, which enforces append-only extension discipline and flags invalid core field overrides during validation.

The best way to enforce schema governance is running canon schema validation that verifies required fields, enforces append-only sidecar discipline, and produces actionable pass or failure quality gate results.

Schema extension scaffolding fails because canon validation requires version fields, schema identifiers, field type enums, and required core properties to be present and correctly formatted before allowing extension creation.