List devices currently in the registry. Note: Call sonos_discover first to populate the registry if a device is not found in the current registry. Returns UUID, IP address, room name, model, and software version of registered devices. Use room name to communicate with the user.
AI agents call sonos_list_devices to retrieve information from Sonos Ts without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward data retrieval operation that queries the device registry and returns metadata about Sonos devices. It has no capability to modify, delete, execute commands, or trigger external operations. The only action is reading and presenting existing device information, making it a Read category tool with low severity since exposure of device metadata on a local network has minimal security impact.
From the tool's definition Tool performs listing operation returning device information (UUID, IP address, room name, model, software version) with no modifications or side effects. Description states 'List devices currently in the registry' and 'Returns' device data.
Documented attack patterns abuse exactly the kind of access sonos_list_devices gives an agent:
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_devices:
{
"version": "1",
"default": "deny",
"tools": {
"sonos_list_devices": {}
}
}sonos_list_devices is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List devices currently in the registry. Note: Call sonos_discover first to populate the registry if a device is not found in the current registry. Returns UUID, IP address, room name, model, and software version of registered devices. Use room name to communicate with the user. It is categorised as a Read tool in the Sonos Ts MCP Server, which means it retrieves data without modifying state.
Register the Sonos Ts MCP server in PolicyLayer and add a rule for sonos_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 Sonos Ts. Nothing to install.
sonos_list_devices is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the sonos_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.
Set action: deny in the PolicyLayer policy for sonos_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.
sonos_list_devices 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.
Start from Sonos Ts, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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60 Sonos Ts tools catalogued and risk-classified — across an index of 43,000+ MCP servers.