{
  "checker": {
    "details": {
      "argv": [
        "/workspace/target/release/soundcraft-cli",
        "run",
        "--demo",
        "--cmd",
        "mix.volume={\"track\":\"Kick\",\"db\":-6}",
        "--cmd",
        "mix.insert={\"track\":\"Bass\",\"plugin\":\"eq_7band\"}",
        "--bounce",
        "/workspace/.coldpass/probe-mix.wav"
      ],
      "kind": "cli",
      "needs_browser": false,
      "needs_credentials": false,
      "returncode": 0,
      "scope": "product operation",
      "stderr": "",
      "stdout": "mix.volume: {\"tracks\":1}\nmix.insert: {\"plugin\":\"eq_7band\",\"slot\":2,\"track\":12}\n{\"bytes\":16094696,\"lufs\":-19.649152755737305,\"path\":\"/workspace/.coldpass/probe-mix.wav\",\"peak_db\":-5.074563026428223,\"seconds\":55.884,\"true_peak_db\":-5.050273895263672}",
      "working": true
    },
    "status": "PASS"
  },
  "deviations": [
    "README 'Getting started' shows 'cargo run --release -p soundcraft' and the README's headless example uses 'soundcraft-cli' on PATH; the probe uses the absolute path /workspace/target/release/soundcraft-cli built by cargo build, since the checker runs in a clean process.",
    "Rust toolchain installed via rustup 1.95.0 (not preinstalled in guest). Did not install any browser. Did not run cargo test or clippy suites.",
    "Probe bounce output (/workspace/.coldpass/probe-mix.wav) is not created by this run; the verification bounce was written to /workspace/soundcraft-probe-mix.wav and removed afterward so the checker gets a fresh path."
  ],
  "main_blocker": null,
  "operation": "Headless demo session: load --demo, set Kick volume to -6 dB, insert eq_7band on Bass, bounce mix to WAV (README: 'For agents and scripts' -> soundcraft-cli run --demo ... --bounce).",
  "operation_scope": "Covers the headless CLI engine path only. Desktop GUI, web build (trunk), and audio device output were not exercised; no browser or CDP endpoint was used.",
  "outcome": "working",
  "steps": [
    "apt-get install libasound2-dev pkg-config build-essential curl ca-certificates libxkbcommon-dev libwayland-dev libudev-dev (README 'Linux needs the ALSA headers')",
    "curl -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal --default-toolchain 1.95.0 (README 'Getting started': Rust 1.95 or later)",
    "cargo build --release -p soundcraft-cli (exit 0, 1m49s)",
    "SOUNDCRAFT_NO_PREFS=1 soundcraft-cli run --demo --cmd 'mix.volume=...' --cmd 'mix.insert=...' --bounce <wav> (exit 0; wrote 16094696-byte WAV, 55.884 s, LUFS -19.65, peak -5.07 dBFS)"
  ],
  "stuck_step": null,
  "suggested_fix": null
}