sonos_list_subscriptions

THE RISK

Low Risk

Why sonos_list_subscriptions needs a policy

This tool retrieves and displays information about existing subscriptions without modifying, creating, or deleting any data. It is a read-only informational query about device state. The blast radius of misuse is minimal—exposing subscription metadata poses negligible security risk compared to playback or queue manipulation tools. No destructive, financial, or code-execution capability is present.

From the tool's definition Tool name 'sonos_list_subscriptions' and description 'List all active event subscriptions for a device' indicate a query/retrieval operation with no side effects.

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

POLICY

How to control sonos_list_subscriptions

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

policy.json

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

sonos_list_subscriptions 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 Sonos Ts — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Sonos Ts tools

Destructive sonos_clear_queue Remove all tracks from the queue. Does not stop current playback. Destructive sonos_delete_alarm Delete an existing alarm permanently. Destructive sonos_remove_from_queue Remove a track from the queue at the specified position. Execute sonos_play Start or resume playback on a Sonos device. Continues from current queue position and resp Execute sonos_play_from_queue Start playing from the queue at a specific position. Execute sonos_previous Skip to previous track or restart current track if played more than a few seconds. Execute sonos_stop Stop playback on a Sonos device. Clears playback state, unlike pause which maintains posit Execute sonos_agent An AI-powered assistant that can take natural language instructions and autonomously contr

All 60 Sonos Ts tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

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 sonos_list_subscriptions

What does the sonos_list_subscriptions tool do? +

List all active event subscriptions for a device including subscription IDs and services. It is categorised as a Read tool in the Sonos Ts MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on sonos_list_subscriptions? +

Register the Sonos Ts MCP server in PolicyLayer and add a rule for sonos_list_subscriptions: 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 Sonos Ts. Nothing to install.

What risk level is sonos_list_subscriptions? +

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

Can I rate-limit sonos_list_subscriptions? +

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

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

sonos_list_subscriptions is provided by the Sonos Ts MCP server (tommertom/sonos-ts-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Sonos Ts tool call.

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

CHECK YOUR STACK →