{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Guide Board Evidence Item",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "id",
    "run_id",
    "extension_id",
    "check_id",
    "subject_ref",
    "result",
    "observations",
    "facts",
    "requirement_refs",
    "artifact_refs",
    "started_at",
    "completed_at"
  ],
  "properties": {
    "id": { "type": "string" },
    "run_id": { "type": "string" },
    "extension_id": { "type": "string" },
    "check_id": { "type": "string" },
    "subject_ref": { "type": "string" },
    "result": {
      "type": "string",
      "enum": [
        "pass",
        "fail",
        "warning",
        "manual",
        "not_applicable",
        "skipped",
        "expected_gap",
        "waiver_applied",
        "unsupported_by_design",
        "infrastructure_error",
        "blocked",
        "unknown"
      ]
    },
    "observations": { "type": "array", "items": { "type": "string" } },
    "facts": { "type": "object" },
    "requirement_refs": { "type": "array", "items": { "type": "string" } },
    "artifact_refs": { "type": "array", "items": { "type": "string" } },
    "started_at": { "type": "string" },
    "completed_at": { "type": "string" }
  }
}