device_list

Plug-and-play devices; entries with a non-OK status (problem codes) are highlighted.

SERVERMcp Hands SOURCEhuocai250/mcp-hands

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mcp-hands/device-list.md

WHAT IT DOES

What device_list does on Mcp Hands

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

RISK

Why device_list is rated Low

Even though device_list 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 device_list safely

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

device_list Allowed

device_list 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": {
    "device_list": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Hands, apply this rule, and every device_list call is checked against it from then on.

FAQ

Questions about device_list

What does the device_list tool do? +

Plug-and-play devices; entries with a non-OK status (problem codes) are highlighted. It is categorised as a Read tool in the Mcp Hands MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on device_list? +

Register the Mcp Hands MCP server in PolicyLayer and add a rule for device_list: 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 Mcp Hands. Nothing to install.

What risk level is device_list? +

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

Can I rate-limit device_list? +

Yes. Add a rate_limit block to the device_list 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 device_list completely? +

Set action: deny in the PolicyLayer policy for device_list. 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 device_list? +

device_list is provided by the Mcp Hands MCP server (huocai250/mcp-hands). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Mcp Hands, and thousands of servers like it.

This server

All 378 Mcp Hands tools →

Across the catalogue

list_symbols on ACE-MCP →aiva_list_affiliates on AIVA MCP Server → The MCP Attack Database →

Guides

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