scan

扫描附近的 DG-Lab 设备（郊狼 / 爪印 / 灵猫边缘控制 / 负鼠）。返回包含 address / name / rssi / deviceKind 的列表。

SERVERDG-MCP SOURCE0xnullai/dg-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/0xnullai-dg-mcp/scan.md

WHAT IT DOES

What scan does on DG-MCP

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

RISK

Why scan is rated Low

Even though scan only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs scan safely

PolicyLayer is an MCP gateway: it sits between your AI agents and DG-MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For scan, this is the rule to start with:

scan Allowed

scan is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "scan": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect DG-MCP, apply this rule, and every scan call is checked against it from then on.

FAQ

Questions about scan

What does the scan tool do? +

扫描附近的 DG-Lab 设备（郊狼 / 爪印 / 灵猫边缘控制 / 负鼠）。返回包含 address / name / rssi / deviceKind 的列表。. It is categorised as a Read tool in the DG-MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on scan? +

Register the DG MCP server in PolicyLayer and add a rule for scan: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches DG-MCP. Nothing to install.

What risk level is scan? +

scan is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit scan? +

Yes. Add a rate_limit block to the scan rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block scan completely? +

Set action: deny in the PolicyLayer policy for scan. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides scan? +

scan is provided by the DG MCP server (0xnullai/dg-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on DG, and thousands of servers like it.

This server

All 9 DG tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →