sonos_search_library

THE RISK

Low Risk

Why sonos_search_library needs a policy

This tool retrieves and queries music library data without modifying, deleting, or executing any operations. It is purely informational, searching and returning results. Even in the context of a Sonos audio system, searching the library poses minimal risk—an AI agent cannot misuse this to cause harm, data loss, or financial impact. The blast radius is negligible.

From the tool's definition Tool description states it 'Search the music library' and 'Returns matching items' — a query operation with no side effects on data or system state.

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

POLICY

How to control sonos_search_library

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_search_library:

policy.json

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

sonos_search_library 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

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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 sonos_search_library

What does the sonos_search_library tool do? +

Search the music library by artist, album, track, or genre. Returns matching items. 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_search_library? +

Register the Sonos Ts MCP server in PolicyLayer and add a rule for sonos_search_library: 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_search_library? +

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

Can I rate-limit sonos_search_library? +

Yes. Add a rate_limit block to the sonos_search_library 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_search_library completely? +

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

sonos_search_library 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 →