AI问答分清不超过和低于：规则阈值做成可测案例

{
  "rules": [
    {
      "id": "R1",
      "text": "常规退货天数不超过7天。"
    },
    {
      "id": "R2",
      "text": "金额低于100元可走即时审核。"
    }
  ]
}

python3 -m venv .venv
source .venv/bin/activate
python -m pip install -r requirements.txt
python run.py

{
  "model": "gemini-2.5-flash-lite",
  "messages": [
    {
      "role": "system",
      "content": "严格只输出单个JSON对象，不要Markdown代码围栏，不要解释。只输出JSON：refund_days对象含operator和value；instant_amount同样。保留不超过为<=，低于为<，不要把等号丢失或增加。"
    },
    {
      "role": "user",
      "content": "任务约束（只输出JSON对象，不用代码围栏）：\n只输出JSON：refund_days对象含operator和value；instant_amount同样。保留不超过为<=，低于为<，不要把等号丢失或增加。\n待处理合成材料：\n{\"rules\": [{\"id\": \"R1\", \"text\": \"常规退货天数不超过7天。\"}, {\"id\": \"R2\", \"text\": \"金额低于100元可走即时审核。\"}], \"source_text\": \"R1: 常规退货天数不超过7天。\\nR2: 金额低于100元可走即时审核。\"}"
    }
  ],
  "temperature": 0,
  "max_tokens": 1536,
  "provider": {
    "sort": "success_rate"
  },
  "response_format": {
    "type": "json_object"
  }
}

ds = output.get('refund_days', {})
am = output.get('instant_amount', {})
check('不超过提取为小于等于', ds == {'operator': '<=', 'value': 7})
check('低于提取为严格小于', am == {'operator': '<', 'value': 100})
rows = []
operations = {'<': lambda a, b: a < b, '<=': lambda a, b: a <= b}
for kind, rule, values in [('days', ds, [6, 7, 8]), ('amount', am, [99, 100, 101])]:
    for value in values:
        valid = rule.get('operator') in operations and isinstance(rule.get('value'), (int, float))
        accepted = operations[rule['operator']](value, rule['value']) if valid else None
        rows.append({'rule': kind, 'input': value, 'accepted': accepted})
check('等于7天可退，等于100不走即时审核', rows[1]['accepted'] is True and rows[4]['accepted'] is False)
check('负例把<改为<=会错误接纳100', operations['<='](100, 100) and (not operations['<'](100, 100)))
write_csv(artifact('boundary-results.csv'), rows)
result = {'modelRules': output, 'boundaryRows': rows}

{
  "modelRules": {
    "refund_days": {
      "operator": "<=",
      "value": 7
    },
    "instant_amount": {
      "operator": "<",
      "value": 100
    }
  },
  "boundaryRows": [
    {
      "rule": "days",
      "input": 6,
      "accepted": true
    },
    {
      "rule": "days",
      "input": 7,
      "accepted": true
    },
    {
      "rule": "days",
      "input": 8,
      "accepted": false
    },
    {
      "rule": "amount",
      "input": 99,
      "accepted": true
    },
    {
      "rule": "amount",
      "input": 100,
      "accepted": false
    },
    {
      "rule": "amount",
      "input": 101,
      "accepted": false
    }
  ]
}