get_cluster_name_from_id

THE RISK

Low Risk

Why get_cluster_name_from_id needs a policy

This tool performs a simple read operation to resolve a cluster identifier to its human-readable name. It has no side effects, does not execute commands, does not modify device state, and does not access sensitive data beyond cluster name mappings. The blast radius of misuse is minimal—returning an incorrect or unexpected cluster name would not cause harm to devices or systems.

From the tool's definition Tool name and description indicate retrieval only: 'Get the cluster name from a cluster Id'. This is a lookup/query operation that retrieves metadata without modifying state.

Documented attack patterns abuse exactly the kind of access get_cluster_name_from_id gives an agent:

POLICY

How to control get_cluster_name_from_id

PolicyLayer is an MCP gateway — it sits between your AI agents and Matter, and nothing reaches the server without passing your rules. This is the rule we recommend for get_cluster_name_from_id:

policy.json

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

get_cluster_name_from_id is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Matter — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Matter tools

Execute start_listening Start listening for node events and changes. Execute commission_with_code Commission a new device using QR code or manual pairing code. Execute device_command Send a command to a device. Write set_thread_dataset Set Thread credentials for device commissioning. Write set_wifi_credentials Set WiFi credentials for device commissioning. Write write_attribute Write an attribute value to a node. Read get_cluster_commands get_cluster_commands Read get_cluster_id_from_name Get the cluster Id from a cluster name

All 15 Matter tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_cluster_name_from_id

What does the get_cluster_name_from_id tool do? +

Get the cluster name from a cluster Id. It is categorised as a Read tool in the Matter MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_cluster_name_from_id? +

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

What risk level is get_cluster_name_from_id? +

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

Can I rate-limit get_cluster_name_from_id? +

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

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

get_cluster_name_from_id is provided by the Matter MCP server (mattercoder/matter-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Matter tool call.

Start from Matter, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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