Rag Search

# rag-search

Minimal RAG search skill for backend retrieval.

## ⚠️ Important

**This skill is intended to be used as a backend retrieval component and should not be invoked directly by end users.**

Use `occupational_health_qa` or `occupational_health_report_writer` for direct user requests.

## Usage

```
你：调用 rag-search，查询"GBZ 2.1-2019 苯 职业接触限值"
```

## Returns

Returns structured search results with:
- `content`: Original text from the document
- `source`: File name / standard number
- `clause`: Clause number (if available)
- `regulation_level`: Regulation level (国家法律/国家标准/行业标准/etc)
- `score`: Relevance score (0-1)

## Example Response

```json
{
  "results": [
    {
      "content": "苯的时间加权平均容许浓度（PC-TWA）为6 mg/m³...",
      "source": "GBZ 2.1-2019.pdf",
      "clause": "第4.1条",
      "regulation_level": "国家标准",
      "score": 0.93
    }
  ]
}
```