{
  "schema": "WEB017_DETERMINISTIC_TRACE_v1",
  "state": "mutation_long_task",
  "measurement_kind": "deterministic_fixture_trace",
  "browser_trace_claimed": false,
  "lcp": {
    "document_response_ms": 420,
    "resource_discovery_delay_ms": 30,
    "resource_duration_ms": 800,
    "element_render_delay_ms": 180,
    "lcp_model_ms": 1430
  },
  "inp": {
    "interaction": "search-submit",
    "input_delay_ms": 20,
    "processing_duration_ms": 260,
    "presentation_delay_ms": 40,
    "inp_model_ms": 320
  },
  "cls": {
    "image_reserved_dimensions": true,
    "cls_model_score": 0.04
  },
  "unchanged_metrics_note": "Values are teaching-fixture model outputs, not browser or field measurements."
}