{
  "schemaVersion": 1,
  "mode": "deterministic",
  "scenarioId": "good-vs-cpu-stressed",
  "scenarioDescription": "Peer B is CPU stressed, but the paired call should still remain healthy.",
  "fixtureId": null,
  "generatedAt": "2026-04-26T13:13:47.953Z",
  "seed": 606,
  "pairedAnalysis": {
    "peerA": {
      "addr": "peer-A",
      "role": "root-forwarder",
      "primaryClass": "stall-dominated",
      "provisionalBars": [
        {
          "metric": "packetsDroppedPendingDecryptRatePerSec",
          "observed": 0,
          "threshold": 1,
          "operator": "<",
          "passed": true,
          "description": "Decrypt drop rate < 1.0/s (decrypt pass bar)"
        },
        {
          "metric": "playoutUnderTargetFraction",
          "observed": 0.0407725321888412,
          "threshold": 0.35,
          "operator": "<=",
          "passed": true,
          "description": "Under-target fraction ≤ 0.35 (provisional jitter pass)"
        },
        {
          "metric": "playoutOutsideTargetFraction",
          "observed": 0.04281115879828326,
          "threshold": 0.5,
          "operator": "<=",
          "passed": true,
          "description": "Outside-target fraction ≤ 0.5"
        }
      ],
      "passedAllBars": true,
      "severity": "healthy",
      "diagnosticNotes": [
        "V2-managed sources: 1; using v2 jitter summary instead of legacy Opus window fields",
        "Hidden decoded reserve: ring=277.0ms, target=120.0ms",
        "Tick budget: 269 breaches, P95=36.0ms"
      ]
    },
    "peerB": {
      "addr": "peer-B",
      "role": "standby-forwarder",
      "primaryClass": "policy-dominated",
      "provisionalBars": [
        {
          "metric": "packetsDroppedPendingDecryptRatePerSec",
          "observed": 0,
          "threshold": 1,
          "operator": "<",
          "passed": true,
          "description": "Decrypt drop rate < 1.0/s (decrypt pass bar)"
        },
        {
          "metric": "playoutUnderTargetFraction",
          "observed": 0.015012510425354461,
          "threshold": 0.35,
          "operator": "<=",
          "passed": true,
          "description": "Under-target fraction ≤ 0.35 (provisional jitter pass)"
        },
        {
          "metric": "playoutOutsideTargetFraction",
          "observed": 0.015763135946622184,
          "threshold": 0.5,
          "operator": "<=",
          "passed": true,
          "description": "Outside-target fraction ≤ 0.5"
        }
      ],
      "passedAllBars": true,
      "severity": "healthy",
      "diagnosticNotes": [
        "V2-managed sources: 1; using v2 jitter summary instead of legacy Opus window fields"
      ]
    },
    "bothPassed": true,
    "worseAddr": "peer-A",
    "qualityScore": 8.336909871244636,
    "callSummary": "[Good 8.3/10] BOTH PEERS PASS — peer-A (root-forwarder): stall-dominated, severity=healthy; peer-B (standby-forwarder): policy-dominated, severity=healthy"
  },
  "firstDegradedPeer": "peer-A",
  "firstDegradedStage": "playout",
  "likelyFixSurfaces": [
    "stall-dominated",
    "policy-dominated"
  ],
  "peerA": {
    "addr": "peer-A",
    "role": "root-forwarder",
    "senderProfileId": "cpuStressedSender",
    "senderProfileLabel": "CPU-stressed caller",
    "impairmentSummary": "Sender-side runtime pressure with repeated tick-budget-like stalls and bursty delivery.",
    "metrics": {
      "avgPcmBufferedMs": 115.8412017167382,
      "avgPlayoutDeltaMs": -4.1587982832618025,
      "playoutUnderTargetFraction": 0.0407725321888412,
      "playoutOutsideTargetFraction": 0.04281115879828326,
      "playoutRateFractionBelow1": 0.15,
      "jitterUnderruns": 0,
      "missingFrames": 3,
      "concealmentTicks": 3,
      "packetsDroppedStaleTimestamp": 0,
      "packetsDroppedStaleTimestampRatePerSec": 0,
      "packetsDroppedPendingDecrypt": 0,
      "packetsDroppedPendingDecryptRatePerSec": 0,
      "pendingDecryptDepthHighWater": 0,
      "reticulumAudioBridgeQueuedFramesHighWater": 0,
      "reticulumAudioBinaryOutQueueDepthHighWater": 0,
      "reticulumAudioBridgeWaitingForDrain": false,
      "reticulumAudioQueuePressureDrops": 0,
      "reticulumAudioStaleDrops": 0,
      "avgOpusBufferedMs": 304.12017167381975,
      "maxOpusBufferedMs": 320,
      "adaptiveTargetMedianMs": 120,
      "wasmFecDeferredPcmTicks": 0,
      "durationMs": 9320,
      "adaptiveNetworkMode": "steady",
      "playoutStarvationWorstSeverity": "none",
      "gcallAudioStage5BoostCumulativeMs": 0,
      "tickBudgetBreachCount": 269,
      "tickBudgetBreachP95Ms": 36,
      "tickBudgetBreachMaxMs": 36,
      "longTaskCount": 0,
      "role": "root-forwarder",
      "v2ManagedSourceCount": 1,
      "legacyWindowOpusMetricsMeaningful": false,
      "avgPcmRingBufferedMs": 277.0386266094421,
      "avgTargetBufferMs": 120
    },
    "timeline": {
      "firstIssueAtMs": 20,
      "firstIssueStage": "playout",
      "arrival": {
        "firstIssueAtMs": 316,
        "totalPackets": 1196,
        "deliveredPackets": 1194,
        "droppedPackets": 2,
        "dropRate": 0.0016722408026755853,
        "staleTimestampDrops": 0,
        "maxExcessLatenessMs": 65,
        "maxTimestampRegressionMs": 80
      },
      "jitter": {
        "firstIssueAtMs": 208,
        "avgBufferedMs": 304.12017167381975,
        "maxBufferedMs": 320,
        "maxDepthFrames": 16
      },
      "decode": {
        "firstIssueAtMs": 248,
        "framesDecoded": 19,
        "concealmentFrames": 3,
        "concealmentTicks": 3
      },
      "pcmRing": {
        "firstIssueAtMs": null,
        "avgBufferedMs": 277.0386266094421,
        "minBufferedMs": 60,
        "maxBufferedMs": 280,
        "underruns": 0,
        "overruns": 0
      },
      "playout": {
        "firstIssueAtMs": 20,
        "avgDeltaMs": 20.472103004291846,
        "underTargetFraction": 0.0407725321888412,
        "outsideTargetFraction": 0.04281115879828326,
        "targetBufferMs": 120
      },
      "perf": {
        "tickBudgetBreachCount": 269,
        "tickBudgetBreachP95Ms": 36,
        "tickBudgetBreachMaxMs": 36,
        "longTaskCount": 0
      }
    },
    "stateTransitions": [
      {
        "state": "steady",
        "count": 464
      },
      {
        "state": "backlogDrain",
        "count": 2
      }
    ],
    "classification": {
      "addr": "peer-A",
      "role": "root-forwarder",
      "primaryClass": "stall-dominated",
      "provisionalBars": [
        {
          "metric": "packetsDroppedPendingDecryptRatePerSec",
          "observed": 0,
          "threshold": 1,
          "operator": "<",
          "passed": true,
          "description": "Decrypt drop rate < 1.0/s (decrypt pass bar)"
        },
        {
          "metric": "playoutUnderTargetFraction",
          "observed": 0.0407725321888412,
          "threshold": 0.35,
          "operator": "<=",
          "passed": true,
          "description": "Under-target fraction ≤ 0.35 (provisional jitter pass)"
        },
        {
          "metric": "playoutOutsideTargetFraction",
          "observed": 0.04281115879828326,
          "threshold": 0.5,
          "operator": "<=",
          "passed": true,
          "description": "Outside-target fraction ≤ 0.5"
        }
      ],
      "passedAllBars": true,
      "severity": "healthy",
      "diagnosticNotes": [
        "V2-managed sources: 1; using v2 jitter summary instead of legacy Opus window fields",
        "Hidden decoded reserve: ring=277.0ms, target=120.0ms",
        "Tick budget: 269 breaches, P95=36.0ms"
      ]
    }
  },
  "peerB": {
    "addr": "peer-B",
    "role": "standby-forwarder",
    "senderProfileId": "cleanSender",
    "senderProfileLabel": "Clean sender",
    "impairmentSummary": "Low jitter, no intentional loss, stable cadence.",
    "metrics": {
      "avgPcmBufferedMs": 118.46872393661386,
      "avgPlayoutDeltaMs": -1.5312760633861444,
      "playoutUnderTargetFraction": 0.015012510425354461,
      "playoutOutsideTargetFraction": 0.015763135946622184,
      "playoutRateFractionBelow1": 0,
      "jitterUnderruns": 0,
      "missingFrames": 1,
      "concealmentTicks": 1,
      "packetsDroppedStaleTimestamp": 0,
      "packetsDroppedStaleTimestampRatePerSec": 0,
      "packetsDroppedPendingDecrypt": 0,
      "packetsDroppedPendingDecryptRatePerSec": 0,
      "pendingDecryptDepthHighWater": 0,
      "reticulumAudioBridgeQueuedFramesHighWater": 0,
      "reticulumAudioBinaryOutQueueDepthHighWater": 0,
      "reticulumAudioBridgeWaitingForDrain": false,
      "reticulumAudioQueuePressureDrops": 0,
      "reticulumAudioStaleDrops": 0,
      "avgOpusBufferedMs": 314.09507923269393,
      "maxOpusBufferedMs": 320,
      "adaptiveTargetMedianMs": 120,
      "wasmFecDeferredPcmTicks": 0,
      "durationMs": 23980,
      "adaptiveNetworkMode": "steady",
      "playoutStarvationWorstSeverity": "none",
      "gcallAudioStage5BoostCumulativeMs": 0,
      "tickBudgetBreachCount": 0,
      "tickBudgetBreachP95Ms": 0,
      "tickBudgetBreachMaxMs": 0,
      "longTaskCount": 0,
      "role": "standby-forwarder",
      "v2ManagedSourceCount": 1,
      "legacyWindowOpusMetricsMeaningful": false,
      "avgPcmRingBufferedMs": 179.08256880733944,
      "avgTargetBufferMs": 120
    },
    "timeline": {
      "firstIssueAtMs": 20,
      "firstIssueStage": "jitter",
      "arrival": {
        "firstIssueAtMs": null,
        "totalPackets": 1197,
        "deliveredPackets": 1197,
        "droppedPackets": 0,
        "dropRate": 0,
        "staleTimestampDrops": 0,
        "maxExcessLatenessMs": 6,
        "maxTimestampRegressionMs": 0
      },
      "jitter": {
        "firstIssueAtMs": 20,
        "avgBufferedMs": 314.09507923269393,
        "maxBufferedMs": 320,
        "maxDepthFrames": 16
      },
      "decode": {
        "firstIssueAtMs": 160,
        "framesDecoded": 13,
        "concealmentFrames": 1,
        "concealmentTicks": 1
      },
      "pcmRing": {
        "firstIssueAtMs": null,
        "avgBufferedMs": 179.08256880733944,
        "minBufferedMs": 0,
        "maxBufferedMs": 220,
        "underruns": 0,
        "overruns": 0
      },
      "playout": {
        "firstIssueAtMs": 20,
        "avgDeltaMs": 22.378648874061717,
        "underTargetFraction": 0.015012510425354461,
        "outsideTargetFraction": 0.015763135946622184,
        "targetBufferMs": 120
      },
      "perf": {
        "tickBudgetBreachCount": 0,
        "tickBudgetBreachP95Ms": 0,
        "tickBudgetBreachMaxMs": 0,
        "longTaskCount": 0
      }
    },
    "stateTransitions": [
      {
        "state": "missingMedia",
        "count": 3
      },
      {
        "state": "coldStart",
        "count": 3
      },
      {
        "state": "steady",
        "count": 1193
      }
    ],
    "classification": {
      "addr": "peer-B",
      "role": "standby-forwarder",
      "primaryClass": "policy-dominated",
      "provisionalBars": [
        {
          "metric": "packetsDroppedPendingDecryptRatePerSec",
          "observed": 0,
          "threshold": 1,
          "operator": "<",
          "passed": true,
          "description": "Decrypt drop rate < 1.0/s (decrypt pass bar)"
        },
        {
          "metric": "playoutUnderTargetFraction",
          "observed": 0.015012510425354461,
          "threshold": 0.35,
          "operator": "<=",
          "passed": true,
          "description": "Under-target fraction ≤ 0.35 (provisional jitter pass)"
        },
        {
          "metric": "playoutOutsideTargetFraction",
          "observed": 0.015763135946622184,
          "threshold": 0.5,
          "operator": "<=",
          "passed": true,
          "description": "Outside-target fraction ≤ 0.5"
        }
      ],
      "passedAllBars": true,
      "severity": "healthy",
      "diagnosticNotes": [
        "V2-managed sources: 1; using v2 jitter summary instead of legacy Opus window fields"
      ]
    }
  }
}