# hello

一个简单的问候指令案例

Agent View of the PolicyLayer registry record for `hello`. HTML page: https://policylayer.com/tools/1uokun-xiaohongshu-mcp-js/hello

## Facts

- Tool: `hello`
- Server: XiaoHongShu MCP (`1uokun/xiaohongshu-mcp-js`) — https://policylayer.com/tools/1uokun-xiaohongshu-mcp-js.md
- Homepage: https://github.com/1uokun/xiaohongshu-mcp-js
- Risk category: Read (Low risk)
- Registry record: grade B, 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": "hello",
    "arguments": {}
  }
}
```

## Why hello is rated Low

This is a simple greeting command that serves as a no-op test or informational tool. It has no capability to read, write, execute, or destroy data. It does not interact with the XiaoHongShu platform or trigger any side effects. Classified as Read (the least severe category) because even harmless informational tools should be tracked, though the actual risk is negligible.

From the tool's own definition: "Tool name 'hello' with description '一个简单的问候指令案例' (a simple greeting command example) indicates a basic greeting/test function with no data access, modification, or external effects."

## Use case

AI agents call hello to retrieve information from XiaoHongShu MCP 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 XiaoHongShu MCP:

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

## Other tools on XiaoHongShu MCP (2)

- `check_login_status` — Read — https://policylayer.com/tools/1uokun-xiaohongshu-mcp-js/check-login-status.md
- `publish_content` — Write — https://policylayer.com/tools/1uokun-xiaohongshu-mcp-js/publish-content.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=1uokun-xiaohongshu-mcp-js · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/1uokun-xiaohongshu-mcp-js