AI agents call audio_get_active_playlist to retrieve information from Propresenter without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves the current state of an audio playlist without altering any data or triggering external operations. It is a straightforward read operation that queries the ProPresenter 7 system for information about the active audio playlist, posing minimal security risk.
From the tool's definition Tool name contains 'get' and description states 'Get the currently active audio playlist' - a retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access audio_get_active_playlist gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Propresenter, and nothing reaches the server without passing your rules. This is the rule we recommend for audio_get_active_playlist:
{
"version": "1",
"default": "deny",
"tools": {
"audio_get_active_playlist": {}
}
}audio_get_active_playlist is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the currently active audio playlist. It is categorised as a Read tool in the Propresenter MCP Server, which means it retrieves data without modifying state.
Register the Propresenter MCP server in PolicyLayer and add a rule for audio_get_active_playlist: 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 Propresenter. Nothing to install.
audio_get_active_playlist 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 audio_get_active_playlist 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 audio_get_active_playlist. 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.
audio_get_active_playlist is provided by the Propresenter MCP server (@alxpark/propresenter-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Propresenter, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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177 Propresenter tools catalogued and risk-classified — across an index of 43,000+ MCP servers.