# area

string

Agent View of the PolicyLayer registry record for `area`. HTML page: https://policylayer.com/tools/baidu-map/area

## Facts

- Tool: `area`
- Server: Baidu Map (`@baidumap/mcp-server-baidu-map`) — https://policylayer.com/tools/baidu-map.md
- Install: `npx -y @baidumap/mcp-server-baidu-map`
- Homepage: https://www.npmjs.com/package/@baidumap/mcp-server-baidu-map
- Risk category: Read (Low risk)
- Registry record: grade C, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "area",
    "arguments": {}
  }
}
```

## Why area is rated Low

The tool is on a mapping API server alongside tools like 'adcode', 'city', 'cityCode', suggesting geographic data retrieval. 'area' most plausibly queries or returns geographic area information. Description 'string' is uninformative, lowering confidence. No evidence of write, execute, destructive, or financial operations.

From the tool's own definition: "Tool name is 'area' and description is merely 'string', which is uninformative. Based on the tool name and context of a Baidu Map API server, it likely retrieves area/region data."

## Use case

AI agents call area to retrieve information from Baidu Map without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Baidu Map:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "area": {}
  }
}
```

## Other tools on Baidu Map (43)

- `business` — Other — https://policylayer.com/tools/baidu-map/business.md
- `cityCode` — Other — https://policylayer.com/tools/baidu-map/citycode.md
- `comprehension` — Other — https://policylayer.com/tools/baidu-map/comprehension.md
- `confidence` — Other — https://policylayer.com/tools/baidu-map/confidence.md
- `detail` — Other — https://policylayer.com/tools/baidu-map/detail.md
- `level` — Other — https://policylayer.com/tools/baidu-map/level.md
- `new_catalog` — Other — https://policylayer.com/tools/baidu-map/new-catalog.md
- `precise` — Other — https://policylayer.com/tools/baidu-map/precise.md
- `result_type` — Other — https://policylayer.com/tools/baidu-map/result-type.md
- `tag` — Other — https://policylayer.com/tools/baidu-map/tag.md
- `uid` — Other — https://policylayer.com/tools/baidu-map/uid.md
- `adcode` — Read — https://policylayer.com/tools/baidu-map/adcode.md
- `address` — Read — https://policylayer.com/tools/baidu-map/address.md
- `addressComponent` — Read — https://policylayer.com/tools/baidu-map/addresscomponent.md
- `business_info` — Read — https://policylayer.com/tools/baidu-map/business-info.md
- `city` — Read — https://policylayer.com/tools/baidu-map/city.md
- `comment_num` — Read — https://policylayer.com/tools/baidu-map/comment-num.md
- `content_tag` — Read — https://policylayer.com/tools/baidu-map/content-tag.md
- `country` — Read — https://policylayer.com/tools/baidu-map/country.md
- `detail_info` — Read — https://policylayer.com/tools/baidu-map/detail-info.md
- `detail_url` — Read — https://policylayer.com/tools/baidu-map/detail-url.md
- `direction` — Read — https://policylayer.com/tools/baidu-map/direction.md
- `distance` — Read — https://policylayer.com/tools/baidu-map/distance.md
- `district` — Read — https://policylayer.com/tools/baidu-map/district.md
- `formatted_address` — Read — https://policylayer.com/tools/baidu-map/formatted-address.md
- `formatted_address_poi` — Read — https://policylayer.com/tools/baidu-map/formatted-address-poi.md
- `image_num` — Read — https://policylayer.com/tools/baidu-map/image-num.md
- `location` — Read — https://policylayer.com/tools/baidu-map/location.md
- `navi_location` — Read — https://policylayer.com/tools/baidu-map/navi-location.md
- `overall_rating` — Read — https://policylayer.com/tools/baidu-map/overall-rating.md
- …and 13 more: https://policylayer.com/tools/baidu-map.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=baidu-map · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/baidu-map