{
  "benchmark": {
    "determinism": {
      "group_count": 21,
      "output_byte_hash_stability_counts": {
        "stable": 17,
        "unstable": 4
      },
      "sample_count": 63,
      "semantic_hash_stability_counts": {
        "stable": 20,
        "unstable": 1
      }
    },
    "engine_identities": [
      {
        "arch": "arm64",
        "availability": "available",
        "engine": "libreoffice",
        "executable_sha256": "b4efedd0c18e62c5598ad55a2531756be5b4476bdc8e766c6b4210fa09dc1a91",
        "platform": "darwin",
        "runtime_footprint": {
          "executable_bytes": 53136,
          "installation_bytes": 423048828
        },
        "runtime_json_sha256": "ad4265b8bdcc5b30f72e86ead16cfe439ffb2c5970380e5ce58bd5de5dbfd095",
        "runtime_manifest_status": "present",
        "version_observation_sha256": "6d49d29516f9fb3b3f02bf33238f0beae9980c1743128ce831deddcfb69bce89",
        "wrapper_sha256": "b4efedd0c18e62c5598ad55a2531756be5b4476bdc8e766c6b4210fa09dc1a91"
      },
      {
        "arch": "arm64",
        "availability": "available",
        "engine": "wolfxl",
        "executable_sha256": "4967034f22a28b104a0ef584f64cff38f3a59c55f7c8aa1685ec04ea3dd766f9",
        "platform": "darwin",
        "runtime_footprint": {
          "executable_bytes": 27064640,
          "installation_bytes": 37524645
        },
        "runtime_json_sha256": null,
        "runtime_manifest_status": "missing",
        "version_observation_sha256": "56c2a1866d34f1a74ce6cafd94f9552e3f73d205f4b09961e2b208baabdfc4e6",
        "wrapper_sha256": "b64058cfba60c56399509ef923a2b39457c621095583aaff7488c93f1ee9e60a"
      }
    ],
    "footprint": [
      {
        "engine": "libreoffice",
        "observation_count": 1,
        "peak_process_tree_rss_bytes_median": 36225024,
        "runtime_executable_bytes_median": 53136,
        "runtime_installation_bytes_median": 423048828,
        "terminal_status_counts": {
          "ok": 1
        }
      },
      {
        "engine": "wolfxl",
        "observation_count": 1,
        "peak_process_tree_rss_bytes_median": 55656448,
        "runtime_executable_bytes_median": 27064640,
        "runtime_installation_bytes_median": 37524645,
        "terminal_status_counts": {
          "ok": 1
        }
      }
    ],
    "measured_medians": [
      {
        "engine": "libreoffice",
        "fixture": "fixtures/formula-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 114409472,
        "sample_count": 3,
        "scenario": "agent-tasks",
        "task": "recalc_extract",
        "wall_time_seconds_median": 0.720838332985295
      },
      {
        "engine": "libreoffice",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 112017408,
        "sample_count": 3,
        "scenario": "agent-tasks",
        "task": "roundtrip_preservation",
        "wall_time_seconds_median": 0.7617502089997288
      },
      {
        "engine": "libreoffice",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 109494272,
        "sample_count": 3,
        "scenario": "agent-tasks",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 0.6668427909899037
      },
      {
        "engine": "libreoffice",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 110182400,
        "sample_count": 3,
        "scenario": "agent-tasks",
        "task": "xlsx_to_pdf_export",
        "wall_time_seconds_median": 0.7175653750018682
      },
      {
        "engine": "libreoffice",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 93306880,
        "sample_count": 3,
        "scenario": "cold-start",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 1.1106733750202693
      },
      {
        "engine": "libreoffice",
        "fixture": null,
        "mode": "footprint",
        "peak_process_tree_rss_bytes_median": 36225024,
        "sample_count": 1,
        "scenario": "footprint-rss",
        "task": "footprint_rss",
        "wall_time_seconds_median": 0.562938834016677
      },
      {
        "engine": "libreoffice",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 114327552,
        "sample_count": 3,
        "scenario": "scale-frontier",
        "task": "roundtrip_preservation",
        "wall_time_seconds_median": 0.6697981669858564
      },
      {
        "engine": "libreoffice",
        "fixture": "fixtures/basic-20000x8.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 129875968,
        "sample_count": 3,
        "scenario": "scale-frontier",
        "task": "roundtrip_preservation",
        "wall_time_seconds_median": 1.4456987919984385
      },
      {
        "engine": "libreoffice",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 109395968,
        "sample_count": 3,
        "scenario": "scale-frontier",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 0.6937818750157021
      },
      {
        "engine": "libreoffice",
        "fixture": "fixtures/basic-20000x8.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 113999872,
        "sample_count": 3,
        "scenario": "scale-frontier",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 1.5026340000040364
      },
      {
        "engine": "libreoffice",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "warm",
        "peak_process_tree_rss_bytes_median": 109576192,
        "sample_count": 3,
        "scenario": "warm-latency",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 0.6729382920020726
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/formula-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 64012288,
        "sample_count": 3,
        "scenario": "agent-tasks",
        "task": "recalc_extract",
        "wall_time_seconds_median": 0.2932540829933714
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 59506688,
        "sample_count": 3,
        "scenario": "agent-tasks",
        "task": "roundtrip_preservation",
        "wall_time_seconds_median": 0.29746420797891915
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 62980096,
        "sample_count": 3,
        "scenario": "agent-tasks",
        "task": "surgical_edit_save",
        "wall_time_seconds_median": 0.3001624579774216
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 59883520,
        "sample_count": 3,
        "scenario": "agent-tasks",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 0.3032979159906972
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 62816256,
        "sample_count": 3,
        "scenario": "agent-tasks",
        "task": "xlsx_to_pdf_export",
        "wall_time_seconds_median": 0.2994272079959046
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 59965440,
        "sample_count": 3,
        "scenario": "cold-start",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 0.3328422919730656
      },
      {
        "engine": "wolfxl",
        "fixture": null,
        "mode": "footprint",
        "peak_process_tree_rss_bytes_median": 55656448,
        "sample_count": 1,
        "scenario": "footprint-rss",
        "task": "footprint_rss",
        "wall_time_seconds_median": 0.5786271669785492
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 59752448,
        "sample_count": 3,
        "scenario": "scale-frontier",
        "task": "roundtrip_preservation",
        "wall_time_seconds_median": 0.27206270801252685
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-20000x8.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 59949056,
        "sample_count": 3,
        "scenario": "scale-frontier",
        "task": "roundtrip_preservation",
        "wall_time_seconds_median": 0.37062079200404696
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 58654720,
        "sample_count": 3,
        "scenario": "scale-frontier",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 0.2868904999922961
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-20000x8.xlsx",
        "mode": "cold",
        "peak_process_tree_rss_bytes_median": 61308928,
        "sample_count": 3,
        "scenario": "scale-frontier",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 0.42075445799855515
      },
      {
        "engine": "wolfxl",
        "fixture": "fixtures/basic-10x4.xlsx",
        "mode": "warm",
        "peak_process_tree_rss_bytes_median": 59883520,
        "sample_count": 3,
        "scenario": "warm-latency",
        "task": "xlsx_to_csv_extract",
        "wall_time_seconds_median": 0.2741285410011187
      }
    ],
    "result_counts": {
      "measured_ok_count": 65,
      "row_count": 70,
      "terminal_status_counts": {
        "ok": 67,
        "unsupported": 3
      }
    }
  },
  "input_receipt": {
    "bundle_index_sha256": "1a25561d6f4099ebb9bc206ac033cf5204daf72298998d52a24eb297c1932e3e",
    "sha256": "1c38877b393664e7670cf52f035148ebb1e9e526e2cc23fae7d2435036b3a7cb",
    "source_identity": {
      "build_mode": null,
      "built_hash_or_baked_constant": null,
      "source_dirty": false,
      "source_hash": "35de4e6914854a2dd3e66f5ee69e71729f606ff4",
      "source_tree": "d02aa3805814c25dd17ec3ca96900813dd0da2d2"
    }
  },
  "non_claims": [
    "This report does not establish universal performance, memory, or compatibility outcomes.",
    "Unsupported task rows are outcomes, not estimated durations.",
    "The two engines do not have identical product scope."
  ],
  "report_version": 1,
  "scope": "Source-matched local macOS arm64 comparison of registered WolfXL and Codex-bundled LibreOffice task adapters."
}