list_devices

A read tool on the Tolpo MCP server.

SERVERTolpo SOURCEsignerless/tolpo

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/tolpo/list-devices.md

WHAT IT DOES

What list_devices does on Tolpo

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

RISK

Why list_devices is rated Low

Lists devices in Home Assistant; retrieves data with no side effects or capabilities to modify state.

From the tool's definition uninformative description; tool name suggests data retrieval without modification

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_devices safely

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

list_devices Allowed

list_devices 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": {
    "list_devices": {}
  }
}

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

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

FAQ

Questions about list_devices

What does the list_devices tool do? +

list_devices is a read tool on the Tolpo MCP server. It is categorised as a Read tool in the Tolpo MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_devices? +

Register the Tolpo MCP server in PolicyLayer and add a rule for list_devices: 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 Tolpo. Nothing to install.

What risk level is list_devices? +

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

Can I rate-limit list_devices? +

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

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

list_devices is provided by the Tolpo MCP server (signerless/tolpo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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