{
  "obelisk_version": "0.42.0",
  "binary_target": "x86_64-unknown-linux-musl",
  "binary_sha256": "3d7943bb46e7f9fa12e22348a54e67d2cb991c0a9b30b18148aedf7b1c7759df",
  "cpu": "Intel Core i9-14900HX",
  "measured_at": "2026-10-04",
  "metric": "replay_duration_ms (excludes execution-log loading)",
  "warmup_calls_per_execution_per_runtime": 1,
  "measured_calls_per_execution_per_runtime": 9,
  "method": "Sequential V8, Boa WASM, then Rust Wasmtime calls against an isolated paused copy of a real coding-agent conversation. All implementations replayed all 726 history events to version 740 and the same blocked state. One warmup and nine measured calls per runtime; no live model or tool calls during replay.",
  "samples": [
    {
      "runtime": "v8",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 1,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 136
    },
    {
      "runtime": "v8",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 2,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 125
    },
    {
      "runtime": "v8",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 3,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 131
    },
    {
      "runtime": "v8",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 4,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 128
    },
    {
      "runtime": "v8",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 5,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 128
    },
    {
      "runtime": "v8",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 6,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 137
    },
    {
      "runtime": "v8",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 7,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 140
    },
    {
      "runtime": "v8",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 8,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 123
    },
    {
      "runtime": "v8",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 9,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 123
    },
    {
      "runtime": "boa-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 1,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 3137
    },
    {
      "runtime": "boa-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 2,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 3171
    },
    {
      "runtime": "boa-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 3,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 3217
    },
    {
      "runtime": "boa-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 4,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 3225
    },
    {
      "runtime": "boa-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 5,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 3255
    },
    {
      "runtime": "boa-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 6,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 3155
    },
    {
      "runtime": "boa-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 7,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 3122
    },
    {
      "runtime": "boa-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 8,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 3142
    },
    {
      "runtime": "boa-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 9,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 3233
    },
    {
      "runtime": "rust-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 1,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 117
    },
    {
      "runtime": "rust-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 2,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 105
    },
    {
      "runtime": "rust-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 3,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 106
    },
    {
      "runtime": "rust-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 4,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 105
    },
    {
      "runtime": "rust-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 5,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 109
    },
    {
      "runtime": "rust-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 6,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 106
    },
    {
      "runtime": "rust-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 7,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 108
    },
    {
      "runtime": "rust-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 8,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 105
    },
    {
      "runtime": "rust-wasm",
      "execution_id": "E_01M4386JT2SM9JXT5DKJ2535X4",
      "sample": 9,
      "outcome": "blocked",
      "replayed_event_count": 726,
      "replay_version": 740,
      "replay_duration_ms": 108
    }
  ],
  "workflow_agent_revision": "131a982",
  "rust_workflow_sha256": "66425917e8c013e95d65fffcca9fadf501c3727a13b1c96c8dff2b273e3e7f04",
  "workload": {
    "agent_steps": 18,
    "tool_calls": 17,
    "description": "Recorded conversation asking the coding agent to build an app that accepts a GitHub username and gathers sourced contribution facts. Includes Bash, starter-source inspection, virtual filesystem edits, and deployment tools."
  }
}