{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://obliteratus.dev/schemas/checkpoint-error-registry-v1.schema.json",
  "title": "OBLITERATUS Checkpoint Error Registry v1",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema_id", "schema_version", "entries"],
  "properties": {
    "schema_id": {"const": "obliteratus.checkpoint-error-registry"},
    "schema_version": {"const": "1.0.0"},
    "entries": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": ["code", "phase", "category", "degraded_modes"],
        "properties": {
          "code": {"type": "string", "pattern": "^DCI_[A-Z0-9_]+$"},
          "phase": {"enum": ["classification", "policy", "source", "preflight", "reader", "protocol", "validation", "admission", "materialization", "promotion", "evidence", "cleanup"]},
          "category": {"enum": ["unsupported", "trust", "source", "runtime", "resource", "protocol", "validation", "output", "evidence", "cleanup", "concurrency"]},
          "degraded_modes": {"type": "array", "minItems": 1, "uniqueItems": true, "items": {"type": "string", "pattern": "^F(?:0[1-9]|1[0-9]|20)$"}}
        }
      }
    }
  }
}