{
  "eval_id": 2,
  "eval_name": "eval-fft-iladata",
  "prompt": "请对这个ILA捕获文件做FFT频谱分析：iladata-120m.csv。采样率120MHz，16位数据。",
  "assertions": [
    {
      "text": "Script fft_analyse.py is invoked",
      "passed": true,
      "evidence": "Script ran successfully"
    },
    {
      "text": "I/Q columns are auto-detected correctly",
      "passed": true,
      "evidence": "I col: data_120m_i[15:0], Q col: data_120m_q[15:0] — correct"
    },
    {
      "text": "Output PNG or SVG is produced",
      "passed": true,
      "evidence": "iladata_120m_v2_*_analysis.png and .svg produced"
    },
    {
      "text": "--fs 120e6 or equivalent is passed",
      "passed": true,
      "evidence": "fs: 120.0000 MHz confirmed in output"
    },
    {
      "text": "Agent reports OBW or peak frequency to user",
      "passed": true,
      "evidence": "90% OBW: 7.1484 MHz, top peak: -0.9375 MHz at -32.95 dBFS"
    }
  ]
}