{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://docforge.local/schema/node-v1.json",
  "title": "DocForge generic node metadata",
  "type": "object",
  "required": ["schema_version", "id", "title", "family", "authority", "status", "tags", "summary"],
  "properties": {
    "schema_version": { "const": 1 },
    "id": { "type": "string", "pattern": "^[a-z0-9][a-z0-9._-]{1,127}$" },
    "title": { "type": "string", "minLength": 1 },
    "family": { "type": "string", "minLength": 1 },
    "authority": { "enum": ["authoritative", "approved_plan", "derived", "proposal", "historical"] },
    "status": { "type": "string", "minLength": 1 },
    "tags": { "type": "array", "items": { "type": "string", "minLength": 1 }, "uniqueItems": true },
    "summary": { "type": "string", "minLength": 1 },
    "source_anchor": { "type": "string", "minLength": 1 },
    "content": { "type": "string", "minLength": 1 }
  },
  "additionalProperties": {
    "type": "array",
    "items": { "type": "string", "pattern": "^[a-z0-9][a-z0-9._-]{1,127}$" },
    "uniqueItems": true
  }
}