{
  "eval_id": 3,
  "eval_name": "eval-fft-vague",
  "prompt": "我有一个CSV文件 output_iq.txt，帮我画个频谱图，采样率 245.76e6，24位",
  "assertions": [
    {
      "text": "Script fft_analyse.py is invoked despite vague request phrasing",
      "passed": true,
      "evidence": "Script invoked with minimal args"
    },
    {
      "text": "Output spectrum PNG is produced",
      "passed": true,
      "evidence": "output_iq_vague_v2_*_analysis.png created"
    },
    {
      "text": "--fs 245.76e6 and --bits 24 are passed correctly",
      "passed": true,
      "evidence": "fs: 245.7600 MHz, FS ref: 8388608 (= 2^23 for 24-bit)"
    },
    {
      "text": "Auto-detection picks _dec columns, not _hex columns (bug fix verified)",
      "passed": true,
      "evidence": "I col: m_i_dec, Q col: m_q_dec — correct after fix"
    },
    {
      "text": "Agent summarizes results to user",
      "passed": true,
      "evidence": "90% OBW: 7.1400 MHz, 99% OBW: 7.9200 MHz, top peak -0.9600 MHz"
    }
  ]
}