Query comprehensive device information. Roku API: GET http://{host}:8060/query/device-info Returns: model-name, model-number, ui-resolution (720p/1080p/2160p), display-type, firmware-version, serial-number, country, language, wifi-mac, ethernet-mac, captions-mode, audio-guide-enabled, etc. Ref: d...
AI agents call roku_device_info to retrieve information from Roku MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves comprehensive device information without side effects. While the returned data includes sensitive identifiers (serial number, MAC addresses), the tool itself performs only a read operation with no capability to modify device state, execute commands, or trigger external actions. The risk is informational exposure rather than operational, hence low severity.
From the tool's definition Tool queries device information via GET request to /query/device-info endpoint, returning read-only metadata such as model-name, firmware-version, serial-number, wifi-mac, and other device properties.
Attacks that exploit this kind of access
Query comprehensive device information. Roku API: GET http://{host}:8060/query/device-info Returns: model-name, model-number, ui-resolution (720p/1080p/2160p), display-type, firmware-version, serial-number, country, language, wifi-mac, ethernet-mac, captions-mode, audio-guide-enabled, etc. Ref: developer.roku.com/docs/developer-program/debugging/external-control-api.md. It is categorised as a Read tool in the Roku MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Roku MCP Server MCP server in PolicyLayer and add a rule for roku_device_info: 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 Roku MCP Server. Nothing to install.
roku_device_info 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 roku_device_info 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 roku_device_info. 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.
roku_device_info is provided by the Roku MCP Server MCP server (maskelog/roku-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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