Fetch the Apple TV's now-playing state and return the album/show ARTWORK as a VIEWABLE image plus the metadata (title/artist/app/state/position). Targets the Pi (or any mesh device) running the appletv engine via machine. For control (keys, transport, power, launch, pair) use the ops tool with th...
AI agents call appletv_now_playing to retrieve information from Yaver without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
device | string | — | Optional paired-Apple-TV identifier or name; default uses the configured default TV. |
machine | string | — | Target device running the Apple TV engine: "local", "primary", or a deviceId / alias. Default "local". |
Parameters from the server's own tool schema.
Even though appletv_now_playing only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
Fetch the Apple TV's now-playing state and return the album/show ARTWORK as a VIEWABLE image plus the metadata (title/artist/app/state/position). Targets the Pi (or any mesh device) running the appletv engine via machine. For control (keys, transport, power, launch, pair) use the ops tool with the appletv_* verbs. Capturing the user's OWN non-protected HDMI source is a separate capability (ops capture_* verbs + /capture/stream). It is categorised as a Read tool in the Yaver MCP Server, which means it retrieves data without modifying state.
appletv_now_playing accepts 2 parameters: device, machine. The full parameter table on this page comes from the server's own tool schema.
Register the Yaver MCP server in PolicyLayer and add a rule for appletv_now_playing: 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 Yaver. Nothing to install.
appletv_now_playing 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 appletv_now_playing 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 appletv_now_playing. 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.
appletv_now_playing is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.