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        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "ending": "source",
        "outcome": "native-pending-stream-cancellation",
        "cancellations": [
          "old",
          "new"
        ],
        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
      },
      {
        "project": "webkit",
        "browser": "26.6",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "ending": "timeout",
        "outcome": "native-pending-stream-cancellation",
        "cancellations": [
          "old"
        ],
        "scope": "Real browser ReadableStream and actual SDK Input disposal before first media bytes; real timeout; controlled ArtPlayer host; does not assert decoder, late frame or audio-node cleanup."
      },
      {
        "project": "chromium",
        "browser": "153.0.8010.12",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "scenario": "callback",
        "outcome": "native-synthetic-raf",
        "result": {
          "idType": "number",
          "calls": [
            {
              "owner": "first",
              "time": "number",
              "mediaTime": 0,
              "presentedFrames": 0
            }
          ],
          "listeners": 0
        },
        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
      },
      {
        "project": "chromium",
        "browser": "153.0.8010.12",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "scenario": "destroy",
        "outcome": "native-synthetic-raf",
        "result": {
          "idType": "number",
          "calls": [],
          "listeners": 0
        },
        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
      },
      {
        "project": "chromium",
        "browser": "153.0.8010.12",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "scenario": "independent",
        "outcome": "native-synthetic-raf",
        "result": {
          "idType": "number",
          "calls": [
            {
              "owner": "second"
            }
          ],
          "listeners": 0
        },
        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
      },
      {
        "project": "firefox",
        "browser": "155.0",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "scenario": "callback",
        "outcome": "native-synthetic-raf",
        "result": {
          "idType": "number",
          "calls": [
            {
              "owner": "first",
              "time": "number",
              "mediaTime": 0,
              "presentedFrames": 0
            }
          ],
          "listeners": 0
        },
        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
      },
      {
        "project": "firefox",
        "browser": "155.0",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "scenario": "destroy",
        "outcome": "native-synthetic-raf",
        "result": {
          "idType": "number",
          "calls": [],
          "listeners": 0
        },
        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
      },
      {
        "project": "firefox",
        "browser": "155.0",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "scenario": "independent",
        "outcome": "native-synthetic-raf",
        "result": {
          "idType": "number",
          "calls": [
            {
              "owner": "second"
            }
          ],
          "listeners": 0
        },
        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
      },
      {
        "project": "webkit",
        "browser": "26.6",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "scenario": "callback",
        "outcome": "native-synthetic-raf",
        "result": {
          "idType": "number",
          "calls": [
            {
              "owner": "first",
              "time": "number",
              "mediaTime": 0,
              "presentedFrames": 0
            }
          ],
          "listeners": 0
        },
        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
      },
      {
        "project": "webkit",
        "browser": "26.6",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "scenario": "destroy",
        "outcome": "native-synthetic-raf",
        "result": {
          "idType": "number",
          "calls": [],
          "listeners": 0
        },
        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
      },
      {
        "project": "webkit",
        "browser": "26.6",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "scenario": "independent",
        "outcome": "native-synthetic-raf",
        "result": {
          "idType": "number",
          "calls": [
            {
              "owner": "second"
            }
          ],
          "listeners": 0
        },
        "scope": "Real browser requestAnimationFrame and actual proxy instances; synthetic metadata is preserved, no decoding or video frame accuracy is claimed."
      },
      {
        "project": "chromium",
        "browser": "153.0.8010.12",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "outcome": "native-mp4-playback-observed",
        "scope": "Identified published or candidate proxy with actual core5.4.0; native MP4 pixels/clock or explicitly unsupported Windows WebKit APIs. No HLS or long-run AV-sync acceptance."
      },
      {
        "project": "firefox",
        "browser": "155.0",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "outcome": "native-mp4-playback-observed",
        "scope": "Identified published or candidate proxy with actual core5.4.0; native MP4 pixels/clock or explicitly unsupported Windows WebKit APIs. No HLS or long-run AV-sync acceptance."
      },
      {
        "project": "webkit",
        "browser": "26.6",
        "platform": "win32",
        "implementation": "candidate-artifact",
        "sha256": "01b88c915804e1c42b90c8c37aa948029472c7f47f6eb3a266629ed945be9fb1",
        "outcome": "verified-unsupported-capability-control",
        "scope": "Identified published or candidate proxy with actual core5.4.0; native MP4 pixels/clock or explicitly unsupported Windows WebKit APIs. No HLS or long-run AV-sync acceptance."
      }
    ],
    "report": "refactor/.cache/mb04-coordination-results/report.json",
    "reportSha256": "17dbd77680e414f0b27e94e278b24d46cd6cde443ed1bb96dcc2f3d285a6557f",
    "results": "refactor/.cache/mb04-coordination-results/results"
  },
  "checks": [
    {
      "command": "yarn test:mediabunny",
      "result": "pass",
      "tests": 108
    },
    {
      "command": "main/legacy shim, load and coordinator tests",
      "result": "pass",
      "eachRun": 72
    },
    {
      "command": "same 40 coordinator assertions on adba8a3d main",
      "result": "expected historical failures",
      "passed": 8,
      "failed": 32
    },
    {
      "command": "package strict tsc and focused eslint --no-fix",
      "result": "pass",
      "productionModules": 16,
      "temporaryDecoderDeclarationBridges": 2
    },
    {
      "command": "yarn build artplayer-proxy-mediabunny",
      "result": "pass",
      "formats": [
        "main",
        "legacy",
        "esm"
      ]
    },
    {
      "command": "four browser specs with built main",
      "result": "pass",
      "tests": 39
    },
    {
      "command": "yarn ci:check",
      "result": "pass",
      "tests": {
        "unit": 1114,
        "engineering": 14,
        "baseline": 141,
        "mainTotal": 1269,
        "repeatedContractExecutions": 44
      },
      "strictProductionTypeScriptFiles": 306,
      "log": "refactor/.cache/mb04-coordination-ci.log"
    },
    {
      "command": "built ESM default export and source function name",
      "result": "pass",
      "log": "refactor/.cache/mb04-coordination-esm.log"
    }
  ],
  "limitations": [
    "AudioEngine and VideoEngine remain JS behind explicit temporary declarations; their late internal work is MB-05/06.",
    "Six Windows WebKit capability controls are not successful playback.",
    "Trackless false readiness is corrected; existing-track unsupported codec behavior remains a capability/decoder task.",
    "Synthetic RAF is not decoded frame accuracy; native sampled frames and short clocks are not long-run AV sync.",
    "HLS query source ownership is guarded; full concurrent selection/UI topology remains MB-07.",
    "No npm release or next-major approval is implied."
  ]
}