{
  "ocm": "1",
  "id": "linfeng185-dataanalysisagent-dataset-diff",
  "kind": "skill",
  "name": "dataset-diff",
  "description": "按唯一主键确定性比较两版行式数据，识别新增、删除、修改、未变化记录和字段级差异，适用于数据发布验收、回归核对和迁移结果检查。",
  "publisher": "linFeng185",
  "version": "1.0.0",
  "capabilities": {
    "domains": [
      "data_analysis"
    ],
    "tags": [
      "skill-md",
      "governance",
      "diff",
      "deterministic",
      "github"
    ],
    "languages": [
      "en"
    ]
  },
  "quality_prior": 0.6,
  "examples": [
    "按唯一主键确定性比较两版行式数据，识别新增、删除、修改、未变化记录和字段级差异，适用于数据发布验收、回归核对和迁移结果检查。"
  ],
  "primary": false,
  "metadata": {
    "source": {
      "provider": "github",
      "repository": "https://github.com/linFeng185/DataAnalysisAgent",
      "path": "skills/dataset-diff/SKILL.md",
      "ref": "f00177b6579cc6dbf2fe7b3a576c589fb0741a2c",
      "url": "https://github.com/linFeng185/DataAnalysisAgent/blob/f00177b6579cc6dbf2fe7b3a576c589fb0741a2c/skills/dataset-diff/SKILL.md",
      "key": "linFeng185/DataAnalysisAgent/skills/dataset-diff/SKILL.md"
    }
  },
  "instructions": "# 数据集差异比较\n\n1. 比较前必须验证两侧主键非空且唯一，主键质量不满足时立即拒绝。\n2. 未指定比较字段时，使用两侧全部非主键字段的并集并按字段名稳定排序。\n3. 数值字段只在绝对差超过显式容差时判为变化，其他值按稳定结构语义比较。\n4. 差异明细必须受 `max_details` 限制，但新增、删除、修改和字段变化统计必须保持完整。\n5. 不修改输入数据，也不把主键相同解释为记录业务含义相同。",
  "cost": {
    "context_tokens": 50
  }
}